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ffmpeg.wasm-core
Commit 5d50fcc5 authored by multiple authors's avatar multiple authors Committed by Michael Niedermayer
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DIRAC Decoder stable version, MMX support removed. 

Look for MMX_DISABLED to find the disabled functions.

Authors of this code are Marco Gerards <marco@gnu.org> and David Conrad <lessen42@gmail.com>
With changes from Jordi Ortiz <nenjordi@gmail.com>
Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent b54c0a55
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Showing with 4165 additions and 37 deletions
libavcodec/Makefile
View file @ 5d50fcc5
......@@ -111,6 +111,8 @@ OBJS-$(CONFIG_CSCD_DECODER) += cscd.o
OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o
OBJS-$(CONFIG_DCA_DECODER) += dca.o synth_filter.o dcadsp.o
OBJS-$(CONFIG_DCA_ENCODER) += dcaenc.o
OBJS-$(CONFIG_DIRAC_DECODER) += diracdec.o dirac.o diracdsp.o \
dirac_arith.o mpeg12data.o dwt.o
OBJS-$(CONFIG_DFA_DECODER) += dfa.o
OBJS-$(CONFIG_DNXHD_DECODER) += dnxhddec.o dnxhddata.o
OBJS-$(CONFIG_DNXHD_ENCODER) += dnxhdenc.o dnxhddata.o \
......
libavcodec/allcodecs.c
View file @ 5d50fcc5
......@@ -90,6 +90,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (CLJR, cljr);
REGISTER_DECODER (CSCD, cscd);
REGISTER_DECODER (CYUV, cyuv);
REGISTER_DECODER (DIRAC, dirac);
REGISTER_DECODER (DFA, dfa);
REGISTER_ENCDEC (DNXHD, dnxhd);
REGISTER_ENCDEC (DPX, dpx);
......
libavcodec/dirac.c
View file @ 5d50fcc5
......@@ -58,6 +58,7 @@ static const dirac_source_params dirac_source_parameters_defaults[] = {
{ 7680, 4320, 1, 0, 1, 6, 1, 3840, 2160, 0, 0, 3, 3 },
};
//[DIRAC_STD] Table 10.4 Available preset pixel aspect ratio values
static const AVRational dirac_preset_aspect_ratios[] = {
{1, 1},
{10, 11},
......@@ -67,11 +68,13 @@ static const AVRational dirac_preset_aspect_ratios[] = {
{4, 3},
};
//[DIRAC_STD] Values 9,10 of 10.3.5 Frame Rate. Table 10.3 Available preset frame rate values
static const AVRational dirac_frame_rate[] = {
{15000, 1001},
{25, 2},
};
//[DIRAC_STD] This should be equivalent to Table 10.5 Available signal range presets
static const struct {
uint8_t bitdepth;
enum AVColorRange color_range;
......@@ -100,11 +103,13 @@ static const struct {
{ AVCOL_PRI_BT709, AVCOL_SPC_BT709, AVCOL_TRC_UNSPECIFIED /* DCinema */ },
};
//[DIRAC_STD] Table 10.2 Supported chroma sampling formats + Luma Offset
static const enum PixelFormat dirac_pix_fmt[2][3] = {
{ PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV420P },
{ PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ420P },
};
// [DIRAC_STD] 10.3 Parse Source Parameters. source_parameters(base_video_format)
static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
dirac_source_params *source)
{
......@@ -112,49 +117,51 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
unsigned luma_depth = 8, luma_offset = 16;
int idx;
if (get_bits1(gb)) {
source->width = svq3_get_ue_golomb(gb);
source->height = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.2 Frame size. frame_size(video_params)
if (get_bits1(gb)) { //[DIRAC_STD] custom_dimensions_flag
source->width = svq3_get_ue_golomb(gb); //[DIRAC_STD] FRAME_WIDTH
source->height = svq3_get_ue_golomb(gb); //[DIRAC_STD] FRAME_HEIGHT
}
// chroma subsampling
if (get_bits1(gb))
source->chroma_format = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.3 Chroma Sampling Format. chroma_sampling_format(video_params)
if (get_bits1(gb)) //[DIRAC_STD] custom_chroma_format_flag
source->chroma_format = svq3_get_ue_golomb(gb); //[DIRAC_STD] CHROMA_FORMAT_INDEX
if (source->chroma_format > 2U) {
av_log(avctx, AV_LOG_ERROR, "Unknown chroma format %d\n",
source->chroma_format);
return -1;
}
if (get_bits1(gb))
source->interlaced = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.4 Scan Format. scan_format(video_params)
if (get_bits1(gb)) //[DIRAC_STD] custom_scan_format_flag
source->interlaced = svq3_get_ue_golomb(gb); //[DIRAC_STD] SOURCE_SAMPLING
if (source->interlaced > 1U)
return -1;
// frame rate
if (get_bits1(gb)) {
source->frame_rate_index = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.5 Frame Rate. frame_rate(video_params)
if (get_bits1(gb)) { //[DIRAC_STD] custom_frame_rate_flag
source->frame_rate_index = svq3_get_ue_golomb(gb);
if (source->frame_rate_index > 10U)
return -1;
if (!source->frame_rate_index) {
frame_rate.num = svq3_get_ue_golomb(gb);
frame_rate.den = svq3_get_ue_golomb(gb);
frame_rate.num = svq3_get_ue_golomb(gb); //[DIRAC_STD] FRAME_RATE_NUMER
frame_rate.den = svq3_get_ue_golomb(gb); //[DIRAC_STD] FRAME_RATE_DENOM
}
}
if (source->frame_rate_index > 0) {
if (source->frame_rate_index > 0) { //[DIRAC_STD] preset_frame_rate(video_params,index)
if (source->frame_rate_index <= 8)
frame_rate = avpriv_frame_rate_tab[source->frame_rate_index];
frame_rate = avpriv_frame_rate_tab[source->frame_rate_index]; //[DIRAC_STD] Table 10.3 values 1-8
else
frame_rate = dirac_frame_rate[source->frame_rate_index-9];
frame_rate = dirac_frame_rate[source->frame_rate_index-9]; //[DIRAC_STD] Table 10.3 values 9-10
}
av_reduce(&avctx->time_base.num, &avctx->time_base.den,
frame_rate.den, frame_rate.num, 1<<30);
// aspect ratio
if (get_bits1(gb)) {
source->aspect_ratio_index = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.6 Pixel Aspect Ratio. pixel_aspect_ratio(video_params)
if (get_bits1(gb)) { //[DIRAC_STD] custom_pixel_aspect_ratio_flag
source->aspect_ratio_index = svq3_get_ue_golomb(gb); //[DIRAC_STD] index
if (source->aspect_ratio_index > 6U)
return -1;
......@@ -164,20 +171,22 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
avctx->sample_aspect_ratio.den = svq3_get_ue_golomb(gb);
}
}
if (source->aspect_ratio_index > 0)
if (source->aspect_ratio_index > 0) //[DIRAC_STD] Take value from Table 10.4 Available preset pixel aspect ratio values
avctx->sample_aspect_ratio =
dirac_preset_aspect_ratios[source->aspect_ratio_index-1];
if (get_bits1(gb)) {
source->clean_width = svq3_get_ue_golomb(gb);
source->clean_height = svq3_get_ue_golomb(gb);
source->clean_left_offset = svq3_get_ue_golomb(gb);
source->clean_right_offset = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.7 Clean area. clean_area(video_params)
if (get_bits1(gb)) { //[DIRAC_STD] custom_clean_area_flag
source->clean_width = svq3_get_ue_golomb(gb); //[DIRAC_STD] CLEAN_WIDTH
source->clean_height = svq3_get_ue_golomb(gb); //[DIRAC_STD] CLEAN_HEIGHT
source->clean_left_offset = svq3_get_ue_golomb(gb); //[DIRAC_STD] CLEAN_LEFT_OFFSET
source->clean_right_offset = svq3_get_ue_golomb(gb); //[DIRAC_STD] CLEAN_RIGHT_OFFSET
}
// Override signal range.
if (get_bits1(gb)) {
source->pixel_range_index = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.8 Signal range. signal_range(video_params)
//[DIRAC_STD] WARNING: Some adaptation seemed to be done using the AVCOL_RANGE_MPEG/JPEG values
if (get_bits1(gb)) { //[DIRAC_STD] custom_signal_range_flag
source->pixel_range_index = svq3_get_ue_golomb(gb); //[DIRAC_STD] index
if (source->pixel_range_index > 4U)
return -1;
......@@ -186,13 +195,13 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
if (!source->pixel_range_index) {
luma_offset = svq3_get_ue_golomb(gb);
luma_depth = av_log2(svq3_get_ue_golomb(gb))+1;
svq3_get_ue_golomb(gb); // chroma offset
svq3_get_ue_golomb(gb); // chroma offset //@Jordi: Why are these two ignored?
svq3_get_ue_golomb(gb); // chroma excursion
avctx->color_range = luma_offset ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
}
}
if (source->pixel_range_index > 0) {
if (source->pixel_range_index > 0) { //[DIRAC_STD] Take values from Table 10.5 Available signal range presets
idx = source->pixel_range_index-1;
luma_depth = pixel_range_presets[idx].bitdepth;
avctx->color_range = pixel_range_presets[idx].color_range;
......@@ -203,9 +212,9 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
avctx->pix_fmt = dirac_pix_fmt[!luma_offset][source->chroma_format];
// color spec
if (get_bits1(gb)) {
idx = source->color_spec_index = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 10.3.9 Colour specification. colour_spec(video_params)
if (get_bits1(gb)) { //[DIRAC_STD] custom_colour_spec_flag
idx = source->color_spec_index = svq3_get_ue_golomb(gb); //[DIRAC_STD] index
if (source->color_spec_index > 4U)
return -1;
......@@ -215,12 +224,13 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
avctx->color_trc = dirac_color_presets[idx].color_trc;
if (!source->color_spec_index) {
//[DIRAC_STD] 10.3.9.1 Color primaries
if (get_bits1(gb)) {
idx = svq3_get_ue_golomb(gb);
if (idx < 3U)
avctx->color_primaries = dirac_primaries[idx];
}
//[DIRAC_STD] 10.3.9.2 Color matrix
if (get_bits1(gb)) {
idx = svq3_get_ue_golomb(gb);
if (!idx)
......@@ -228,7 +238,7 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
else if (idx == 1)
avctx->colorspace = AVCOL_SPC_BT470BG;
}
//[DIRAC_STD] 10.3.9.3 Transfer function
if (get_bits1(gb) && !svq3_get_ue_golomb(gb))
avctx->color_trc = AVCOL_TRC_BT709;
}
......@@ -242,16 +252,20 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
return 0;
}
//[DIRAC_SPEC] 10. Sequence Header. sequence_header()
int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
dirac_source_params *source)
{
unsigned version_major;
unsigned video_format, picture_coding_mode;
//[DIRAC_SPEC] 10.1 Parse Parameters. parse_parameters()
version_major = svq3_get_ue_golomb(gb);
svq3_get_ue_golomb(gb); /* version_minor */
avctx->profile = svq3_get_ue_golomb(gb);
avctx->level = svq3_get_ue_golomb(gb);
//[DIRAC_SPEC] sequence_header() -> base_video_format as defined in...
// ... 10.2 Base Video Format, table 10.1 Dirac predefined video formats
video_format = svq3_get_ue_golomb(gb);
if (version_major < 2)
......@@ -265,6 +279,7 @@ int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
// Fill in defaults for the source parameters.
*source = dirac_source_parameters_defaults[video_format];
//[DIRAC_STD] 10.3 Source Parameters
// Override the defaults.
if (parse_source_parameters(avctx, gb, source))
return -1;
......@@ -274,6 +289,7 @@ int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
avcodec_set_dimensions(avctx, source->width, source->height);
//[DIRAC_STD] picture_coding_mode shall be 0 for fields and 1 for frames
// currently only used to signal field coding
picture_coding_mode = svq3_get_ue_golomb(gb);
if (picture_coding_mode != 0) {
......
libavcodec/dirac_arith.c 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
* Copyright (C) 2009 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/dirac_arith.c
* Arithmetic decoder for Dirac
* @author Marco Gerards <marco@gnu.org>
*/
#include "dirac_arith.h"
const uint16_t ff_dirac_prob[256] = {
0, 2, 5, 8, 11, 15, 20, 24,
29, 35, 41, 47, 53, 60, 67, 74,
82, 89, 97, 106, 114, 123, 132, 141,
150, 160, 170, 180, 190, 201, 211, 222,
233, 244, 256, 267, 279, 291, 303, 315,
327, 340, 353, 366, 379, 392, 405, 419,
433, 447, 461, 475, 489, 504, 518, 533,
548, 563, 578, 593, 609, 624, 640, 656,
672, 688, 705, 721, 738, 754, 771, 788,
805, 822, 840, 857, 875, 892, 910, 928,
946, 964, 983, 1001, 1020, 1038, 1057, 1076,
1095, 1114, 1133, 1153, 1172, 1192, 1211, 1231,
1251, 1271, 1291, 1311, 1332, 1352, 1373, 1393,
1414, 1435, 1456, 1477, 1498, 1520, 1541, 1562,
1584, 1606, 1628, 1649, 1671, 1694, 1716, 1738,
1760, 1783, 1806, 1828, 1851, 1874, 1897, 1920,
1935, 1942, 1949, 1955, 1961, 1968, 1974, 1980,
1985, 1991, 1996, 2001, 2006, 2011, 2016, 2021,
2025, 2029, 2033, 2037, 2040, 2044, 2047, 2050,
2053, 2056, 2058, 2061, 2063, 2065, 2066, 2068,
2069, 2070, 2071, 2072, 2072, 2072, 2072, 2072,
2072, 2071, 2070, 2069, 2068, 2066, 2065, 2063,
2060, 2058, 2055, 2052, 2049, 2045, 2042, 2038,
2033, 2029, 2024, 2019, 2013, 2008, 2002, 1996,
1989, 1982, 1975, 1968, 1960, 1952, 1943, 1934,
1925, 1916, 1906, 1896, 1885, 1874, 1863, 1851,
1839, 1827, 1814, 1800, 1786, 1772, 1757, 1742,
1727, 1710, 1694, 1676, 1659, 1640, 1622, 1602,
1582, 1561, 1540, 1518, 1495, 1471, 1447, 1422,
1396, 1369, 1341, 1312, 1282, 1251, 1219, 1186,
1151, 1114, 1077, 1037, 995, 952, 906, 857,
805, 750, 690, 625, 553, 471, 376, 255
};
const uint8_t ff_dirac_next_ctx[DIRAC_CTX_COUNT] = {
[CTX_ZPZN_F1] = CTX_ZP_F2,
[CTX_ZPNN_F1] = CTX_ZP_F2,
[CTX_ZP_F2] = CTX_ZP_F3,
[CTX_ZP_F3] = CTX_ZP_F4,
[CTX_ZP_F4] = CTX_ZP_F5,
[CTX_ZP_F5] = CTX_ZP_F6,
[CTX_ZP_F6] = CTX_ZP_F6,
[CTX_NPZN_F1] = CTX_NP_F2,
[CTX_NPNN_F1] = CTX_NP_F2,
[CTX_NP_F2] = CTX_NP_F3,
[CTX_NP_F3] = CTX_NP_F4,
[CTX_NP_F4] = CTX_NP_F5,
[CTX_NP_F5] = CTX_NP_F6,
[CTX_NP_F6] = CTX_NP_F6,
[CTX_DELTA_Q_F] = CTX_DELTA_Q_F,
};
int16_t ff_dirac_prob_branchless[256][2];
void ff_dirac_init_arith_decoder(DiracArith *c, GetBitContext *gb, int length)
{
int i;
align_get_bits(gb);
length = FFMIN(length, get_bits_left(gb)/8);
c->bytestream = gb->buffer + get_bits_count(gb)/8;
c->bytestream_end = c->bytestream + length;
skip_bits_long(gb, length*8);
c->low = 0;
for (i = 0; i < 4; i++) {
c->low <<= 8;
if (c->bytestream < c->bytestream_end)
c->low |= *c->bytestream++;
else
c->low |= 0xff;
}
c->counter = -16;
c->range = 0xffff;
for (i = 0; i < 256; i++) {
ff_dirac_prob_branchless[i][0] = ff_dirac_prob[255-i];
ff_dirac_prob_branchless[i][1] = -ff_dirac_prob[i];
}
for (i = 0; i < DIRAC_CTX_COUNT; i++)
c->contexts[i] = 0x8000;
}
libavcodec/dirac_arith.h 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
* Copyright (C) 2009 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/dirac_arith.h
* Arithmetic decoder for Dirac
* @author Marco Gerards <marco@gnu.org>
*/
#ifndef AVCODEC_DIRAC_ARITH_H
#define AVCODEC_DIRAC_ARITH_H
#include "bytestream.h"
#include "get_bits.h"
enum dirac_arith_contexts {
CTX_ZPZN_F1,
CTX_ZPNN_F1,
CTX_NPZN_F1,
CTX_NPNN_F1,
CTX_ZP_F2,
CTX_ZP_F3,
CTX_ZP_F4,
CTX_ZP_F5,
CTX_ZP_F6,
CTX_NP_F2,
CTX_NP_F3,
CTX_NP_F4,
CTX_NP_F5,
CTX_NP_F6,
CTX_COEFF_DATA,
CTX_SIGN_NEG,
CTX_SIGN_ZERO,
CTX_SIGN_POS,
CTX_ZERO_BLOCK,
CTX_DELTA_Q_F,
CTX_DELTA_Q_DATA,
CTX_DELTA_Q_SIGN,
DIRAC_CTX_COUNT
};
// Dirac resets the arith decoder between decoding various types of data,
// so many contexts are never used simultaneously. Thus, we can reduce
// the number of contexts needed by reusing them.
#define CTX_SB_F1 CTX_ZP_F5
#define CTX_SB_DATA 0
#define CTX_PMODE_REF1 0
#define CTX_PMODE_REF2 1
#define CTX_GLOBAL_BLOCK 2
#define CTX_MV_F1 CTX_ZP_F2
#define CTX_MV_DATA 0
#define CTX_DC_F1 CTX_ZP_F5
#define CTX_DC_DATA 0
typedef struct {
unsigned low;
uint16_t range;
int16_t counter;
const uint8_t *bytestream;
const uint8_t *bytestream_end;
uint16_t contexts[DIRAC_CTX_COUNT];
} DiracArith;
extern const uint8_t ff_dirac_next_ctx[DIRAC_CTX_COUNT];
extern const uint16_t ff_dirac_prob[256];
extern int16_t ff_dirac_prob_branchless[256][2];
static inline void renorm(DiracArith *c)
{
#if HAVE_FAST_CLZ
int shift = 14 - av_log2_16bit(c->range-1) + ((c->range-1)>>15);
c->low <<= shift;
c->range <<= shift;
c->counter += shift;
#else
while (c->range <= 0x4000) {
c->low <<= 1;
c->range <<= 1;
c->counter++;
}
#endif
}
static inline void refill(DiracArith *c)
{
int counter = c->counter;
if (counter >= 0) {
int new = bytestream_get_be16(&c->bytestream);
// the spec defines overread bits to be 1, and streams rely on this
if (c->bytestream > c->bytestream_end) {
new |= 0xff;
if (c->bytestream > c->bytestream_end+1)
new |= 0xff00;
c->bytestream = c->bytestream_end;
}
c->low += new << counter;
counter -= 16;
}
c->counter = counter;
}
static inline int dirac_get_arith_bit(DiracArith *c, int ctx)
{
int prob_zero = c->contexts[ctx];
int range_times_prob, bit;
unsigned low = c->low;
int range = c->range;
range_times_prob = (c->range * prob_zero) >> 16;
#if HAVE_FAST_CMOV
low -= range_times_prob << 16;
range -= range_times_prob;
bit = 0;
__asm__(
"cmpl %5, %4 \n\t"
"setae %b0 \n\t"
"cmovb %3, %2 \n\t"
"cmovb %5, %1 \n\t"
: "+q"(bit), "+r"(range), "+r"(low)
: "r"(c->low), "r"(c->low>>16),
"r"(range_times_prob)
);
#else
bit = (low >> 16) >= range_times_prob;
if (bit) {
low -= range_times_prob << 16;
range -= range_times_prob;
} else {
range = range_times_prob;
}
#endif
c->contexts[ctx] += ff_dirac_prob_branchless[prob_zero>>8][bit];
c->low = low;
c->range = range;
renorm(c);
refill(c);
return bit;
}
static inline int dirac_get_arith_uint(DiracArith *c, int follow_ctx, int data_ctx)
{
int ret = 1;
while (!dirac_get_arith_bit(c, follow_ctx)) {
ret <<= 1;
ret += dirac_get_arith_bit(c, data_ctx);
follow_ctx = ff_dirac_next_ctx[follow_ctx];
}
return ret-1;
}
static inline int dirac_get_arith_int(DiracArith *c, int follow_ctx, int data_ctx)
{
int ret = dirac_get_arith_uint(c, follow_ctx, data_ctx);
if (ret && dirac_get_arith_bit(c, data_ctx+1))
ret = -ret;
return ret;
}
void ff_dirac_init_arith_decoder(DiracArith *c, GetBitContext *gb, int length);
#endif /* AVCODEC_DIRAC_ARITH_H */
libavcodec/diracdec.c 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
* Copyright (C) 2009 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file libavcodec/diracdec.c
* Dirac Decoder
* @author Marco Gerards <marco@gnu.org>
*/
#include "avcodec.h"
#include "dsputil.h"
#include "get_bits.h"
#include "bytestream.h"
#include "golomb.h"
#include "dirac_arith.h"
#include "mpeg12data.h"
#include "dwt.h"
#include "dirac.h"
#include "diracdsp.h"
#undef printf
/**
* The spec limits the number of wavelet decompositions to 4 for both
* level 1 (VC-2) and 128 (long-gop default).
* 5 decompositions is the maximum before >16-bit buffers are needed.
* Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
* the others to 4 decompositions (or 3 for the fidelity filter).
*
* We use this instead of MAX_DECOMPOSITIONS to save some memory.
*/
#define MAX_DWT_LEVELS 5
/**
* The spec limits this to 3 for frame coding, but in practice can be as high as 6
*/
#define MAX_REFERENCE_FRAMES 8
#define MAX_DELAY 5 ///< limit for main profile for frame coding (TODO: field coding)
#define MAX_FRAMES (MAX_REFERENCE_FRAMES + MAX_DELAY + 1)
#define MAX_QUANT 68 ///< max quant for VC-2
#define MAX_BLOCKSIZE 32 ///< maximum xblen/yblen we support
/**
* DiracBlock->ref flags, if set then the block does MC from the given ref
*/
#define DIRAC_REF_MASK_REF1 1
#define DIRAC_REF_MASK_REF2 2
#define DIRAC_REF_MASK_GLOBAL 4
/**
* Value of Picture.reference when Picture is not a reference picture, but
* is held for delayed output.
*/
#define DELAYED_PIC_REF 4
#define ff_emulated_edge_mc ff_emulated_edge_mc_8 //Fix: change the calls to this function regarding bit depth
#define CALC_PADDING(size, depth) \
(((size + (1 << depth) - 1) >> depth) << depth)
#define DIVRNDUP(a, b) (((a) + (b) - 1) / (b))
typedef struct {
//FF_COMMON_FRAME
AVFrame avframe;
int interpolated[3]; ///< 1 if hpel[] is valid
uint8_t *hpel[3][4];
uint8_t *hpel_base[3][4];
} DiracFrame;
typedef struct {
union {
int16_t mv[2][2];
int16_t dc[3];
} u; // anonymous unions aren't in C99 :(
uint8_t ref;
} DiracBlock;
typedef struct SubBand {
int level;
int orientation;
int stride;
int width;
int height;
int quant;
IDWTELEM *ibuf;
struct SubBand *parent;
// for low delay
unsigned length;
const uint8_t *coeff_data;
} SubBand;
typedef struct Plane {
int width;
int height;
int stride;
int idwt_width;
int idwt_height;
int idwt_stride;
IDWTELEM *idwt_buf;
IDWTELEM *idwt_buf_base;
IDWTELEM *idwt_tmp;
// block length
uint8_t xblen;
uint8_t yblen;
// block separation (block n+1 starts after this many pixels in block n)
uint8_t xbsep;
uint8_t ybsep;
// amount of overspill on each edge (half of the overlap between blocks)
uint8_t xoffset;
uint8_t yoffset;
SubBand band[MAX_DWT_LEVELS][4];
} Plane;
typedef struct DiracContext {
AVCodecContext *avctx;
DSPContext dsp;
DiracDSPContext diracdsp;
GetBitContext gb;
dirac_source_params source;
int seen_sequence_header;
int frame_number; ///< number of the next frame to display
Plane plane[3];
int chroma_x_shift;
int chroma_y_shift;
int zero_res; ///< zero residue flag
int is_arith; ///< whether coeffs use arith or golomb coding
int low_delay; ///< use the low delay syntax
int globalmc_flag; ///< use global motion compensation
int num_refs; ///< number of reference pictures
// wavelet decoding
unsigned wavelet_depth; ///< depth of the IDWT
unsigned wavelet_idx;
/**
* schroedinger older than 1.0.8 doesn't store
* quant delta if only one codebook exists in a band
*/
unsigned old_delta_quant;
unsigned codeblock_mode;
struct {
unsigned width;
unsigned height;
} codeblock[MAX_DWT_LEVELS+1];
struct {
unsigned num_x; ///< number of horizontal slices
unsigned num_y; ///< number of vertical slices
AVRational bytes; ///< average bytes per slice
uint8_t quant[MAX_DWT_LEVELS][4]; //[DIRAC_STD] E.1
} lowdelay;
struct {
int pan_tilt[2]; ///< pan/tilt vector
int zrs[2][2]; ///< zoom/rotate/shear matrix
int perspective[2]; ///< perspective vector
unsigned zrs_exp;
unsigned perspective_exp;
} globalmc[2];
// motion compensation
uint8_t mv_precision; //[DIRAC_STD] REFS_WT_PRECISION
int16_t weight[2]; ////[DIRAC_STD] REF1_WT and REF2_WT
unsigned weight_log2denom; ////[DIRAC_STD] REFS_WT_PRECISION
int blwidth; ///< number of blocks (horizontally)
int blheight; ///< number of blocks (vertically)
int sbwidth; ///< number of superblocks (horizontally)
int sbheight; ///< number of superblocks (vertically)
uint8_t *sbsplit;
DiracBlock *blmotion;
uint8_t *edge_emu_buffer[4];
uint8_t *edge_emu_buffer_base;
uint16_t *mctmp; ///< buffer holding the MC data multipled by OBMC weights
uint8_t *mcscratch;
DECLARE_ALIGNED(16, uint8_t, obmc_weight)[3][MAX_BLOCKSIZE*MAX_BLOCKSIZE];
void (*put_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void (*avg_pixels_tab[4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void (*add_obmc)(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
dirac_weight_func weight_func;
dirac_biweight_func biweight_func;
DiracFrame *current_picture;
DiracFrame *ref_pics[2];
DiracFrame *ref_frames[MAX_REFERENCE_FRAMES+1];
DiracFrame *delay_frames[MAX_DELAY+1];
DiracFrame all_frames[MAX_FRAMES];
} DiracContext;
// [DIRAC_STD] Parse code values. 9.6.1 Table 9.1
enum dirac_parse_code {
pc_seq_header = 0x00,
pc_eos = 0x10,
pc_aux_data = 0x20,
pc_padding = 0x30,
};
enum dirac_subband {
subband_ll = 0,
subband_hl = 1,
subband_lh = 2,
subband_hh = 3
};
static const uint8_t default_qmat[][4][4] = {
{ { 5, 3, 3, 0}, { 0, 4, 4, 1}, { 0, 5, 5, 2}, { 0, 6, 6, 3} },
{ { 4, 2, 2, 0}, { 0, 4, 4, 2}, { 0, 5, 5, 3}, { 0, 7, 7, 5} },
{ { 5, 3, 3, 0}, { 0, 4, 4, 1}, { 0, 5, 5, 2}, { 0, 6, 6, 3} },
{ { 8, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0} },
{ { 8, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0}, { 0, 4, 4, 0} },
{ { 0, 4, 4, 8}, { 0, 8, 8, 12}, { 0, 13, 13, 17}, { 0, 17, 17, 21} },
{ { 3, 1, 1, 0}, { 0, 4, 4, 2}, { 0, 6, 6, 5}, { 0, 9, 9, 7} },
};
static const int qscale_tab[MAX_QUANT+1] = {
4, 5, 6, 7, 8, 10, 11, 13,
16, 19, 23, 27, 32, 38, 45, 54,
64, 76, 91, 108, 128, 152, 181, 215,
256, 304, 362, 431, 512, 609, 724, 861,
1024, 1218, 1448, 1722, 2048, 2435, 2896, 3444,
4096, 4871, 5793, 6889, 8192, 9742, 11585, 13777,
16384, 19484, 23170, 27554, 32768, 38968, 46341, 55109,
65536, 77936
};
static const int qoffset_intra_tab[MAX_QUANT+1] = {
1, 2, 3, 4, 4, 5, 6, 7,
8, 10, 12, 14, 16, 19, 23, 27,
32, 38, 46, 54, 64, 76, 91, 108,
128, 152, 181, 216, 256, 305, 362, 431,
512, 609, 724, 861, 1024, 1218, 1448, 1722,
2048, 2436, 2897, 3445, 4096, 4871, 5793, 6889,
8192, 9742, 11585, 13777, 16384, 19484, 23171, 27555,
32768, 38968
};
static const int qoffset_inter_tab[MAX_QUANT+1] = {
1, 2, 2, 3, 3, 4, 4, 5,
6, 7, 9, 10, 12, 14, 17, 20,
24, 29, 34, 41, 48, 57, 68, 81,
96, 114, 136, 162, 192, 228, 272, 323,
384, 457, 543, 646, 768, 913, 1086, 1292,
1536, 1827, 2172, 2583, 3072, 3653, 4344, 5166,
6144, 7307, 8689, 10333, 12288, 14613, 17378, 20666,
24576, 29226
};
// magic number division by 3 from schroedinger
static inline int divide3(int x)
{
return ((x+1)*21845 + 10922) >> 16;
}
static DiracFrame *remove_frame(DiracFrame *framelist[], int picnum)
{
DiracFrame *remove_pic = NULL;
int i, remove_idx = -1;
for (i = 0; framelist[i]; i++)
if (framelist[i]->avframe.display_picture_number == picnum) {
remove_pic = framelist[i];
remove_idx = i;
}
if (remove_pic)
for (i = remove_idx; framelist[i]; i++)
framelist[i] = framelist[i+1];
return remove_pic;
}
static int add_frame(DiracFrame *framelist[], int maxframes, DiracFrame *frame)
{
int i;
for (i = 0; i < maxframes; i++)
if (!framelist[i]) {
framelist[i] = frame;
return 0;
}
return -1;
}
static int alloc_sequence_buffers(DiracContext *s)
{
int sbwidth = DIVRNDUP(s->source.width, 4);
int sbheight = DIVRNDUP(s->source.height, 4);
int i, w, h, top_padding;
// todo: think more about this / use or set Plane here
for (i = 0; i < 3; i++) {
int max_xblen = MAX_BLOCKSIZE >> (i ? s->chroma_x_shift : 0);
int max_yblen = MAX_BLOCKSIZE >> (i ? s->chroma_y_shift : 0);
w = s->source.width >> (i ? s->chroma_x_shift : 0);
h = s->source.height >> (i ? s->chroma_y_shift : 0);
// we allocate the max we support here since num decompositions can
// change from frame to frame. Stride is aligned to 16 for SIMD, and
// 1<<MAX_DWT_LEVELS top padding to avoid if(y>0) in arith decoding
// MAX_BLOCKSIZE padding for MC: blocks can spill up to half of that
// on each side
top_padding = FFMAX(1<<MAX_DWT_LEVELS, max_yblen/2);
w = FFALIGN(CALC_PADDING(w, MAX_DWT_LEVELS), 8); //FIXME: Should this be 16 for SSE???
h = top_padding + CALC_PADDING(h, MAX_DWT_LEVELS) + max_yblen/2;
s->plane[i].idwt_buf_base = av_mallocz((w+max_xblen)*h * sizeof(IDWTELEM));
s->plane[i].idwt_tmp = av_malloc((w+16) * sizeof(IDWTELEM));
s->plane[i].idwt_buf = s->plane[i].idwt_buf_base + top_padding*w;
if (!s->plane[i].idwt_buf_base || !s->plane[i].idwt_tmp)
return AVERROR(ENOMEM);
}
w = s->source.width;
h = s->source.height;
// fixme: allocate using real stride here
s->sbsplit = av_malloc(sbwidth * sbheight);
s->blmotion = av_malloc(sbwidth * sbheight * 4 * sizeof(*s->blmotion));
s->edge_emu_buffer_base = av_malloc((w+64)*MAX_BLOCKSIZE);
s->mctmp = av_malloc((w+64+MAX_BLOCKSIZE) * (h*MAX_BLOCKSIZE) * sizeof(*s->mctmp));
s->mcscratch= av_malloc((w+64)*MAX_BLOCKSIZE);
if (!s->sbsplit || !s->blmotion)
return AVERROR(ENOMEM);
return 0;
}
static void free_sequence_buffers(DiracContext *s)
{
int i, j, k;
for (i = 0; i < MAX_FRAMES; i++) {
if (s->all_frames[i].avframe.data[0]) {
s->avctx->release_buffer(s->avctx, &s->all_frames[i].avframe);
memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated));
}
for (j = 0; j < 3; j++)
for (k = 1; k < 4; k++)
av_freep(&s->all_frames[i].hpel_base[j][k]);
}
memset(s->ref_frames, 0, sizeof(s->ref_frames));
memset(s->delay_frames, 0, sizeof(s->delay_frames));
for (i = 0; i < 3; i++) {
av_freep(&s->plane[i].idwt_buf_base);
av_freep(&s->plane[i].idwt_tmp);
}
av_freep(&s->sbsplit);
av_freep(&s->blmotion);
av_freep(&s->edge_emu_buffer_base);
av_freep(&s->mctmp);
av_freep(&s->mcscratch);
}
static av_cold int dirac_decode_init(AVCodecContext *avctx)
{
DiracContext *s = avctx->priv_data;
s->avctx = avctx;
s->frame_number = -1;
if (avctx->flags&CODEC_FLAG_EMU_EDGE) {
av_log(avctx, AV_LOG_ERROR, "Edge emulation not supported!\n");
return AVERROR_PATCHWELCOME;
}
dsputil_init(&s->dsp, avctx);
ff_diracdsp_init(&s->diracdsp);
return 0;
}
static void dirac_decode_flush(AVCodecContext *avctx)
{
DiracContext *s = avctx->priv_data;
free_sequence_buffers(s);
s->seen_sequence_header = 0;
s->frame_number = -1;
}
static av_cold int dirac_decode_end(AVCodecContext *avctx)
{
dirac_decode_flush(avctx);
return 0;
}
#define SIGN_CTX(x) (CTX_SIGN_ZERO + ((x) > 0) - ((x) < 0))
static inline void coeff_unpack_arith(DiracArith *c, int qfactor, int qoffset,
SubBand *b, IDWTELEM *buf, int x, int y)
{
int coeff, sign;
int sign_pred = 0;
int pred_ctx = CTX_ZPZN_F1;
// Check if the parent subband has a 0 in the corresponding position
if (b->parent)
pred_ctx += !!b->parent->ibuf[b->parent->stride * (y>>1) + (x>>1)] << 1;
if (b->orientation == subband_hl)
sign_pred = buf[-b->stride];
// Determine if the pixel has only zeros in its neighbourhood
if (x) {
pred_ctx += !(buf[-1] | buf[-b->stride] | buf[-1-b->stride]);
if (b->orientation == subband_lh)
sign_pred = buf[-1];
} else {
pred_ctx += !buf[-b->stride];
}
coeff = dirac_get_arith_uint(c, pred_ctx, CTX_COEFF_DATA);
if (coeff) {
coeff = (coeff*qfactor + qoffset + 2)>>2;
sign = dirac_get_arith_bit(c, SIGN_CTX(sign_pred));
coeff = (coeff ^ -sign) + sign;
}
*buf = coeff;
}
static inline int coeff_unpack_golomb(GetBitContext *gb, int qfactor, int qoffset)
{
int sign, coeff;
coeff = svq3_get_ue_golomb(gb);
if (coeff) {
coeff = (coeff*qfactor + qoffset + 2)>>2;
sign = get_bits1(gb);
coeff = (coeff ^ -sign) + sign;
}
return coeff;
}
/**
* Decode the coeffs in the rectangle defined by left, right, top, bottom
* [DIRAC_STD] 13.4.3.2 Codeblock unpacking loop. codeblock()
*/
static inline void codeblock(DiracContext *s, SubBand *b,
GetBitContext *gb, DiracArith *c,
int left, int right, int top, int bottom,
int blockcnt_one, int is_arith)
{
int x, y, zero_block;
int qoffset, qfactor;
IDWTELEM *buf;
// check for any coded coefficients in this codeblock
if (!blockcnt_one) {
if (is_arith)
zero_block = dirac_get_arith_bit(c, CTX_ZERO_BLOCK);
else
zero_block = get_bits1(gb);
if (zero_block)
return;
}
if (s->codeblock_mode && !(s->old_delta_quant && blockcnt_one)) {
if (is_arith)
b->quant += dirac_get_arith_int(c, CTX_DELTA_Q_F, CTX_DELTA_Q_DATA);
else
b->quant += dirac_get_se_golomb(gb);
}
b->quant = FFMIN(b->quant, MAX_QUANT);
qfactor = qscale_tab[b->quant];
// TODO: context pointer?
if (!s->num_refs)
qoffset = qoffset_intra_tab[b->quant];
else
qoffset = qoffset_inter_tab[b->quant];
buf = b->ibuf + top*b->stride;
for (y = top; y < bottom; y++) {
for (x = left; x < right; x++) {
//[DIRAC_STD] 13.4.4 Subband coefficients. coeff_unpack()
if (is_arith)
coeff_unpack_arith(c, qfactor, qoffset, b, buf+x, x, y);
else
buf[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
}
buf += b->stride;
}
}
//[DIRAC_STD] 13.3 intra_dc_prediction(band)
static inline void intra_dc_prediction(SubBand *b)
{
IDWTELEM *buf = b->ibuf;
int x, y;
for (x = 1; x < b->width; x++)
buf[x] += buf[x-1];
buf += b->stride;
for (y = 1; y < b->height; y++) {
buf[0] += buf[-b->stride];
for (x = 1; x < b->width; x++) {
int pred = buf[x - 1] + buf[x - b->stride] + buf[x - b->stride-1];
buf[x] += divide3(pred);
}
buf += b->stride;
}
}
//[DIRAC_STD] 13.4.2 Non-skipped subbands. subband_coeffs()
static av_always_inline
void decode_subband_internal(DiracContext *s, SubBand *b, int is_arith)
{
int cb_x, cb_y, left, right, top, bottom;
DiracArith c;
GetBitContext gb;
int cb_width = s->codeblock[b->level + (b->orientation != subband_ll)].width;
int cb_height = s->codeblock[b->level + (b->orientation != subband_ll)].height;
int blockcnt_one = (cb_width + cb_height) == 2;
if (!b->length)
return;
init_get_bits(&gb, b->coeff_data, b->length*8);
if (is_arith)
ff_dirac_init_arith_decoder(&c, &gb, b->length);
top = 0;
for (cb_y = 0; cb_y < cb_height; cb_y++) {
bottom = (b->height * (cb_y+1)) / cb_height;
left = 0;
for (cb_x = 0; cb_x < cb_width; cb_x++) {
right = (b->width * (cb_x+1)) / cb_width;
codeblock(s, b, &gb, &c, left, right, top, bottom, blockcnt_one, is_arith);
left = right;
}
top = bottom;
}
if (b->orientation == subband_ll && s->num_refs == 0)
intra_dc_prediction(b);
}
static int decode_subband_arith(AVCodecContext *avctx, void *b)
{
DiracContext *s = avctx->priv_data;
decode_subband_internal(s, b, 1);
return 0;
}
static int decode_subband_golomb(AVCodecContext *avctx, void *arg)
{
DiracContext *s = avctx->priv_data;
SubBand **b = arg;
decode_subband_internal(s, *b, 0);
return 0;
}
//[DIRAC_STD] 13.4.1 core_transform_data()
static void decode_component(DiracContext *s, int comp)
{
AVCodecContext *avctx = s->avctx;
SubBand *bands[3*MAX_DWT_LEVELS+1];
enum dirac_subband orientation;
int level, num_bands = 0;
// Unpack all subbands at all levels.
for (level = 0; level < s->wavelet_depth; level++) {
for (orientation = !!level; orientation < 4; orientation++) {
SubBand *b = &s->plane[comp].band[level][orientation];
bands[num_bands++] = b;
align_get_bits(&s->gb);
//[DIRAC_STD] 13.4.2 subband()
b->length = svq3_get_ue_golomb(&s->gb);
if (b->length) {
b->quant = svq3_get_ue_golomb(&s->gb);
align_get_bits(&s->gb);
b->coeff_data = s->gb.buffer + get_bits_count(&s->gb)/8;
b->length = FFMIN(b->length, get_bits_left(&s->gb)/8);
skip_bits_long(&s->gb, b->length*8);
}
}
// arithmetic coding has inter-level dependencies, so we can only execute one level at a time
if (s->is_arith)
avctx->execute(avctx, decode_subband_arith, &s->plane[comp].band[level][!!level],
NULL, 4-!!level, sizeof(SubBand));
}
// golomb coding has no inter-level dependencies, so we can execute all subbands in parallel
if (!s->is_arith)
avctx->execute(avctx, decode_subband_golomb, bands, NULL, num_bands, sizeof(SubBand*));
}
//[DIRAC_STD] 13.5.5.2 Luma slice subband data. luma_slice_band(level,orient,sx,sy) --> if b2 == NULL
//[DIRAC_STD] 13.5.5.3 Chroma slice subband data. chroma_slice_band(level,orient,sx,sy) --> if b2 != NULL
static void lowdelay_subband(DiracContext *s, GetBitContext *gb, int quant,
int slice_x, int slice_y, int bits_end,
SubBand *b1, SubBand *b2)
{
int left = b1->width * slice_x / s->lowdelay.num_x;
int right = b1->width *(slice_x+1) / s->lowdelay.num_x;
int top = b1->height* slice_y / s->lowdelay.num_y;
int bottom = b1->height*(slice_y+1) / s->lowdelay.num_y;
int qfactor = qscale_tab[FFMIN(quant, MAX_QUANT)];
int qoffset = qoffset_intra_tab[FFMIN(quant, MAX_QUANT)];
IDWTELEM *buf1 = b1->ibuf + top*b1->stride;
IDWTELEM *buf2 = b2 ? b2->ibuf + top*b2->stride : NULL;
int x, y;
// we have to constantly check for overread since the spec explictly
// requires this, with the meaning that all remaining coeffs are set to 0
if (get_bits_count(gb) >= bits_end)
return;
for (y = top; y < bottom; y++) {
for (x = left; x < right; x++) {
buf1[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
if (get_bits_count(gb) >= bits_end)
return;
if (buf2) {
buf2[x] = coeff_unpack_golomb(gb, qfactor, qoffset);
if (get_bits_count(gb) >= bits_end)
return;
}
}
buf1 += b1->stride;
if (buf2)
buf2 += b2->stride;
}
}
struct lowdelay_slice {
GetBitContext gb;
int slice_x;
int slice_y;
int bytes;
};
//[DIRAC_STD] 13.5.2 Slices. slice(sx,sy)
static int decode_lowdelay_slice(AVCodecContext *avctx, void *arg)
{
DiracContext *s = avctx->priv_data;
struct lowdelay_slice *slice = arg;
GetBitContext *gb = &slice->gb;
enum dirac_subband orientation;
int level, quant, chroma_bits, chroma_end;
int quant_base = get_bits(gb, 7); //[DIRAC_STD] qindex
int length_bits = av_log2(8*slice->bytes)+1;
int luma_bits = get_bits_long(gb, length_bits);
int luma_end = get_bits_count(gb) + FFMIN(luma_bits, get_bits_left(gb));
//[DIRAC_STD] 13.5.5.2 luma_slice_band
for (level = 0; level < s->wavelet_depth; level++)
for (orientation = !!level; orientation < 4; orientation++) {
quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, luma_end,
&s->plane[0].band[level][orientation], NULL);
}
// consume any unused bits from luma
skip_bits_long(gb, get_bits_count(gb) - luma_end);
chroma_bits = 8*slice->bytes - 7 - length_bits - luma_bits;
chroma_end = get_bits_count(gb) + FFMIN(chroma_bits, get_bits_left(gb));
//[DIRAC_STD] 13.5.5.3 chroma_slice_band
for (level = 0; level < s->wavelet_depth; level++)
for (orientation = !!level; orientation < 4; orientation++) {
quant = FFMAX(quant_base - s->lowdelay.quant[level][orientation], 0);
lowdelay_subband(s, gb, quant, slice->slice_x, slice->slice_y, chroma_end,
&s->plane[1].band[level][orientation],
&s->plane[2].band[level][orientation]);
}
return 0;
}
//[DIRAC_STD] 13.5.1 low_delay_transform_data()
static void decode_lowdelay(DiracContext *s)
{
AVCodecContext *avctx = s->avctx;
int slice_x, slice_y, bytes, bufsize;
const uint8_t *buf;
struct lowdelay_slice *slices;
int slice_num = 0;
slices = av_mallocz(s->lowdelay.num_x * s->lowdelay.num_y * sizeof(struct lowdelay_slice));
align_get_bits(&s->gb);
//[DIRAC_STD] 13.5.2 Slices. slice(sx,sy)
buf = s->gb.buffer + get_bits_count(&s->gb)/8;
bufsize = get_bits_left(&s->gb);
for (slice_y = 0; slice_y < s->lowdelay.num_y; slice_y++)
for (slice_x = 0; slice_x < s->lowdelay.num_x; slice_x++) {
bytes = (slice_num+1) * s->lowdelay.bytes.num / s->lowdelay.bytes.den
- slice_num * s->lowdelay.bytes.num / s->lowdelay.bytes.den;
slices[slice_num].bytes = bytes;
slices[slice_num].slice_x = slice_x;
slices[slice_num].slice_y = slice_y;
init_get_bits(&slices[slice_num].gb, buf, bufsize);
slice_num++;
buf += bytes;
bufsize -= bytes*8;
if (bufsize <= 0)
goto end;
}
end:
avctx->execute(avctx, decode_lowdelay_slice, slices, NULL, slice_num,
sizeof(struct lowdelay_slice)); //[DIRAC_STD] 13.5.2 Slices
intra_dc_prediction(&s->plane[0].band[0][0]); //[DIRAC_STD] 13.3 intra_dc_prediction()
intra_dc_prediction(&s->plane[1].band[0][0]); //[DIRAC_STD] 13.3 intra_dc_prediction()
intra_dc_prediction(&s->plane[2].band[0][0]); //[DIRAC_STD] 13.3 intra_dc_prediction()
av_free(slices);
}
static void init_planes(DiracContext *s)
{
int i, w, h, level, orientation;
for (i = 0; i < 3; i++) {
Plane *p = &s->plane[i];
p->width = s->source.width >> (i ? s->chroma_x_shift : 0);
p->height = s->source.height >> (i ? s->chroma_y_shift : 0);
p->idwt_width = w = CALC_PADDING(p->width , s->wavelet_depth);
p->idwt_height = h = CALC_PADDING(p->height, s->wavelet_depth);
p->idwt_stride = FFALIGN(p->idwt_width, 8);
for (level = s->wavelet_depth-1; level >= 0; level--) {
w = w>>1;
h = h>>1;
for (orientation = !!level; orientation < 4; orientation++) {
SubBand *b = &p->band[level][orientation];
b->ibuf = p->idwt_buf;
b->level = level;
b->stride = p->idwt_stride << (s->wavelet_depth - level);
b->width = w;
b->height = h;
b->orientation = orientation;
if (orientation & 1)
b->ibuf += w;
if (orientation > 1)
b->ibuf += b->stride>>1;
if (level)
b->parent = &p->band[level-1][orientation];
}
}
if (i > 0) {
p->xblen = s->plane[0].xblen >> s->chroma_x_shift;
p->yblen = s->plane[0].yblen >> s->chroma_y_shift;
p->xbsep = s->plane[0].xbsep >> s->chroma_x_shift;
p->ybsep = s->plane[0].ybsep >> s->chroma_y_shift;
}
p->xoffset = (p->xblen - p->xbsep)/2;
p->yoffset = (p->yblen - p->ybsep)/2;
}
}
/**
* Unpack the motion compensation parameters
* [DIRAC_STD] 11.2 Picture prediction data. picture_prediction()
*/
static int dirac_unpack_prediction_parameters(DiracContext *s)
{
static const uint8_t default_blen[] = { 4, 12, 16, 24 };
static const uint8_t default_bsep[] = { 4, 8, 12, 16 };
GetBitContext *gb = &s->gb;
unsigned idx, ref;
align_get_bits(gb);
//[DIRAC_STD] 11.2.2 Block parameters. block_parameters()
//Luma and Chroma are equal. 11.2.3
idx = svq3_get_ue_golomb(gb); ////[DIRAC_STD] index
if (idx > 4)
{
av_log(s->avctx, AV_LOG_ERROR, "Block prediction index too high\n");
return -1;
}
if (idx == 0) {
s->plane[0].xblen = svq3_get_ue_golomb(gb);
s->plane[0].yblen = svq3_get_ue_golomb(gb);
s->plane[0].xbsep = svq3_get_ue_golomb(gb);
s->plane[0].ybsep = svq3_get_ue_golomb(gb);
} else {
//[DIRAC_STD] preset_block_params(index). Table 11.1
s->plane[0].xblen = default_blen[idx-1];
s->plane[0].yblen = default_blen[idx-1];
s->plane[0].xbsep = default_bsep[idx-1];
s->plane[0].ybsep = default_bsep[idx-1];
}
//[DIRAC_STD] 11.2.4 motion_data_dimensions() --> Calculated in function dirac_unpack_block_motion_data
if (s->plane[0].xbsep < s->plane[0].xblen/2 || s->plane[0].ybsep < s->plane[0].yblen/2) {
av_log(s->avctx, AV_LOG_ERROR, "Block separation too small\n");
return -1;
}
if (s->plane[0].xbsep > s->plane[0].xblen || s->plane[0].ybsep > s->plane[0].yblen) {
av_log(s->avctx, AV_LOG_ERROR, "Block seperation greater than size\n");
return -1;
}
if (FFMAX(s->plane[0].xblen, s->plane[0].yblen) > MAX_BLOCKSIZE) {
av_log(s->avctx, AV_LOG_ERROR, "Unsupported large block size\n");
return -1;
}
//[DIRAC_STD] 11.2.5 Motion vector precision. motion_vector_precision()
// Read motion vector precision
s->mv_precision = svq3_get_ue_golomb(gb);
if (s->mv_precision > 3) {
av_log(s->avctx, AV_LOG_ERROR, "MV precision finer than eighth-pel\n");
return -1;
}
//[DIRAC_STD] 11.2.6 Global motion. global_motion()
// Read the global motion compensation parameters
s->globalmc_flag = get_bits1(gb);
if (s->globalmc_flag) {
memset(s->globalmc, 0, sizeof(s->globalmc));
//[DIRAC_STD] pan_tilt(gparams)
for (ref = 0; ref < s->num_refs; ref++) {
if (get_bits1(gb)) {
s->globalmc[ref].pan_tilt[0] = dirac_get_se_golomb(gb);
s->globalmc[ref].pan_tilt[1] = dirac_get_se_golomb(gb);
}
//[DIRAC_STD] zoom_rotate_shear(gparams)
// zoom/rotation/shear parameters
if (get_bits1(gb)) {
s->globalmc[ref].zrs_exp = svq3_get_ue_golomb(gb);
s->globalmc[ref].zrs[0][0] = dirac_get_se_golomb(gb);
s->globalmc[ref].zrs[0][1] = dirac_get_se_golomb(gb);
s->globalmc[ref].zrs[1][0] = dirac_get_se_golomb(gb);
s->globalmc[ref].zrs[1][1] = dirac_get_se_golomb(gb);
} else {
s->globalmc[ref].zrs[0][0] = 1;
s->globalmc[ref].zrs[1][1] = 1;
}
//[DIRAC_STD] perspective(gparams)
if (get_bits1(gb)) {
s->globalmc[ref].perspective_exp = svq3_get_ue_golomb(gb);
s->globalmc[ref].perspective[0] = dirac_get_se_golomb(gb);
s->globalmc[ref].perspective[1] = dirac_get_se_golomb(gb);
}
}
}
//[DIRAC_STD] 11.2.7 Picture prediction mode. prediction_mode()
// Picture prediction mode, not currently used.
if (svq3_get_ue_golomb(gb)) {
av_log(s->avctx, AV_LOG_ERROR, "Unknown picture prediction mode\n");
return -1;
}
//[DIRAC_STD] 11.2.8 Reference picture weight. reference_picture_weights()
//just data read, weight calculation will be done later on.
s->weight_log2denom = 1;
s->weight[0] = 1;
s->weight[1] = 1;
if (get_bits1(gb)) {
s->weight_log2denom = svq3_get_ue_golomb(gb);
s->weight[0] = dirac_get_se_golomb(gb);
if (s->num_refs == 2)
s->weight[1] = dirac_get_se_golomb(gb);
}
return 0;
}
//[DIRAC_STD] 11.3 Wavelet transform data. wavelet_transform()
static int dirac_unpack_idwt_params(DiracContext *s)
{
GetBitContext *gb = &s->gb;
int i, level;
align_get_bits(gb);
s->zero_res = s->num_refs ? get_bits1(gb) : 0;
if (s->zero_res)
return 0;
//[DIRAC_STD] 11.3.1 Transform parameters. transform_parameters()
s->wavelet_idx = svq3_get_ue_golomb(gb);
if (s->wavelet_idx > 6)
return -1;
s->wavelet_depth = svq3_get_ue_golomb(gb);
if (s->wavelet_depth > MAX_DWT_LEVELS) {
av_log(s->avctx, AV_LOG_ERROR, "too many dwt decompositions\n");
return -1;
}
if (!s->low_delay) {
/* Codeblock paramaters (core syntax only) */
if (get_bits1(gb)) {
for (i = 0; i <= s->wavelet_depth; i++) {
s->codeblock[i].width = svq3_get_ue_golomb(gb);
s->codeblock[i].height = svq3_get_ue_golomb(gb);
}
s->codeblock_mode = svq3_get_ue_golomb(gb);
if (s->codeblock_mode > 1) {
av_log(s->avctx, AV_LOG_ERROR, "unknown codeblock mode\n");
return -1;
}
} else
for (i = 0; i <= s->wavelet_depth; i++)
s->codeblock[i].width = s->codeblock[i].height = 1;
} else {
/* Slice parameters + quantization matrix*/
//[DIRAC_STD] 11.3.4 Slice coding Parameters (low delay syntax only). slice_parameters()
s->lowdelay.num_x = svq3_get_ue_golomb(gb);
s->lowdelay.num_y = svq3_get_ue_golomb(gb);
s->lowdelay.bytes.num = svq3_get_ue_golomb(gb);
s->lowdelay.bytes.den = svq3_get_ue_golomb(gb);
//[DIRAC_STD] 11.3.5 Quantisation matrices (low-delay syntax). quant_matrix()
if (get_bits1(gb)) {
av_log(s->avctx,AV_LOG_DEBUG,"Low Delay: Has Custom Quantization Matrix!\n");
// custom quantization matrix
s->lowdelay.quant[0][0] = svq3_get_ue_golomb(gb);
for (level = 0; level < s->wavelet_depth; level++) {
s->lowdelay.quant[level][1] = svq3_get_ue_golomb(gb);
s->lowdelay.quant[level][2] = svq3_get_ue_golomb(gb);
s->lowdelay.quant[level][3] = svq3_get_ue_golomb(gb);
}
} else {
// default quantization matrix
for (level = 0; level < s->wavelet_depth; level++)
for (i = 0; i < 4; i++) {
s->lowdelay.quant[level][i] = default_qmat[s->wavelet_idx][level][i];
// haar with no shift differs for different depths
if (s->wavelet_idx == 3)
s->lowdelay.quant[level][i] += 4*(s->wavelet_depth-1 - level);
}
}
}
return 0;
}
static inline int pred_sbsplit(uint8_t *sbsplit, int stride, int x, int y)
{
static const uint8_t avgsplit[7] = { 0, 0, 1, 1, 1, 2, 2 };
if (!(x|y))
return 0;
else if (!y)
return sbsplit[-1];
else if (!x)
return sbsplit[-stride];
return avgsplit[sbsplit[-1] + sbsplit[-stride] + sbsplit[-stride-1]];
}
static inline int pred_block_mode(DiracBlock *block, int stride, int x, int y, int refmask)
{
int pred;
if (!(x|y))
return 0;
else if (!y)
return block[-1].ref & refmask;
else if (!x)
return block[-stride].ref & refmask;
// return the majority
pred = (block[-1].ref & refmask) + (block[-stride].ref & refmask) + (block[-stride-1].ref & refmask);
return (pred >> 1) & refmask;
}
static inline void pred_block_dc(DiracBlock *block, int stride, int x, int y)
{
int i, n = 0;
memset(block->u.dc, 0, sizeof(block->u.dc));
if (x && !(block[-1].ref & 3)) {
for (i = 0; i < 3; i++)
block->u.dc[i] += block[-1].u.dc[i];
n++;
}
if (y && !(block[-stride].ref & 3)) {
for (i = 0; i < 3; i++)
block->u.dc[i] += block[-stride].u.dc[i];
n++;
}
if (x && y && !(block[-1-stride].ref & 3)) {
for (i = 0; i < 3; i++)
block->u.dc[i] += block[-1-stride].u.dc[i];
n++;
}
if (n == 2) {
for (i = 0; i < 3; i++)
block->u.dc[i] = (block->u.dc[i]+1)>>1;
} else if (n == 3) {
for (i = 0; i < 3; i++)
block->u.dc[i] = divide3(block->u.dc[i]);
}
}
static inline void pred_mv(DiracBlock *block, int stride, int x, int y, int ref)
{
int16_t *pred[3];
int refmask = ref+1;
int mask = refmask | DIRAC_REF_MASK_GLOBAL; // exclude gmc blocks
int n = 0;
if (x && (block[-1].ref & mask) == refmask)
pred[n++] = block[-1].u.mv[ref];
if (y && (block[-stride].ref & mask) == refmask)
pred[n++] = block[-stride].u.mv[ref];
if (x && y && (block[-stride-1].ref & mask) == refmask)
pred[n++] = block[-stride-1].u.mv[ref];
switch (n) {
case 0:
block->u.mv[ref][0] = 0;
block->u.mv[ref][1] = 0;
break;
case 1:
block->u.mv[ref][0] = pred[0][0];
block->u.mv[ref][1] = pred[0][1];
break;
case 2:
block->u.mv[ref][0] = (pred[0][0] + pred[1][0] + 1) >> 1;
block->u.mv[ref][1] = (pred[0][1] + pred[1][1] + 1) >> 1;
break;
case 3:
block->u.mv[ref][0] = mid_pred(pred[0][0], pred[1][0], pred[2][0]);
block->u.mv[ref][1] = mid_pred(pred[0][1], pred[1][1], pred[2][1]);
break;
}
}
static void global_mv(DiracContext *s, DiracBlock *block, int x, int y, int ref)
{
int ez = s->globalmc[ref].zrs_exp;
int ep = s->globalmc[ref].perspective_exp;
int (*A)[2] = s->globalmc[ref].zrs;
int *b = s->globalmc[ref].pan_tilt;
int *c = s->globalmc[ref].perspective;
int m = (1<<ep) - (c[0]*x + c[1]*y);
int mx = m*((A[0][0]*x + A[0][1]*y) + (1<<ez)*b[0]);
int my = m*((A[1][0]*x + A[1][1]*y) + (1<<ez)*b[1]);
block->u.mv[ref][0] = (mx + (1<<(ez+ep))) >> (ez+ep);
block->u.mv[ref][1] = (my + (1<<(ez+ep))) >> (ez+ep);
}
static void decode_block_params(DiracContext *s, DiracArith arith[8], DiracBlock *block,
int stride, int x, int y)
{
int i;
block->ref = pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF1);
block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF1);
if (s->num_refs == 2) {
block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_REF2);
block->ref ^= dirac_get_arith_bit(arith, CTX_PMODE_REF2) << 1;
}
if (!block->ref) {
pred_block_dc(block, stride, x, y);
for (i = 0; i < 3; i++)
block->u.dc[i] += dirac_get_arith_int(arith+1+i, CTX_DC_F1, CTX_DC_DATA);
return;
}
if (s->globalmc_flag) {
block->ref |= pred_block_mode(block, stride, x, y, DIRAC_REF_MASK_GLOBAL);
block->ref ^= dirac_get_arith_bit(arith, CTX_GLOBAL_BLOCK) << 2;
}
for (i = 0; i < s->num_refs; i++)
if (block->ref & (i+1)) {
if (block->ref & DIRAC_REF_MASK_GLOBAL) {
global_mv(s, block, x, y, i);
} else {
pred_mv(block, stride, x, y, i);
block->u.mv[i][0] += dirac_get_arith_int(arith+4+2*i, CTX_MV_F1, CTX_MV_DATA);
block->u.mv[i][1] += dirac_get_arith_int(arith+5+2*i, CTX_MV_F1, CTX_MV_DATA);
}
}
}
/**
* Copies the current block to the other blocks covered by the current superblock split mode
*/
static void propagate_block_data(DiracBlock *block, int stride, int size)
{
int x, y;
DiracBlock *dst = block;
for (x = 1; x < size; x++)
dst[x] = *block;
for (y = 1; y < size; y++) {
dst += stride;
for (x = 0; x < size; x++)
dst[x] = *block;
}
}
//[DIRAC_STD] 12. Block motion data syntax
static void dirac_unpack_block_motion_data(DiracContext *s)
{
GetBitContext *gb = &s->gb;
uint8_t *sbsplit = s->sbsplit;
int i, x, y, q, p;
DiracArith arith[8];
align_get_bits(gb);
//[DIRAC_STD] 11.2.4 and 12.2.1 Number of blocks and superblocks
s->sbwidth = DIVRNDUP(s->source.width, 4*s->plane[0].xbsep);
s->sbheight = DIVRNDUP(s->source.height, 4*s->plane[0].ybsep);
s->blwidth = 4*s->sbwidth;
s->blheight = 4*s->sbheight;
//[DIRAC_STD] 12.3.1 Superblock splitting modes. superblock_split_modes()
// decode superblock split modes
ff_dirac_init_arith_decoder(arith, gb, svq3_get_ue_golomb(gb)); //svq3_get_ue_golomb(gb) is the length
for (y = 0; y < s->sbheight; y++) {
for (x = 0; x < s->sbwidth; x++) {
int split = dirac_get_arith_uint(arith, CTX_SB_F1, CTX_SB_DATA);
sbsplit[x] = (split + pred_sbsplit(sbsplit+x, s->sbwidth, x, y)) % 3;
}
sbsplit += s->sbwidth;
}
// setup arith decoding
ff_dirac_init_arith_decoder(arith, gb, svq3_get_ue_golomb(gb));
for (i = 0; i < s->num_refs; i++) {
ff_dirac_init_arith_decoder(arith+4+2*i, gb, svq3_get_ue_golomb(gb));
ff_dirac_init_arith_decoder(arith+5+2*i, gb, svq3_get_ue_golomb(gb));
}
for (i = 0; i < 3; i++)
ff_dirac_init_arith_decoder(arith+1+i, gb, svq3_get_ue_golomb(gb));
for (y = 0; y < s->sbheight; y++)
for (x = 0; x < s->sbwidth; x++) {
int blkcnt = 1 << s->sbsplit[y*s->sbwidth + x];
int step = 4 >> s->sbsplit[y*s->sbwidth + x];
for (q = 0; q < blkcnt; q++)
for (p = 0; p < blkcnt; p++) {
int bx = 4*x + p*step;
int by = 4*y + q*step;
DiracBlock *block = &s->blmotion[by*s->blwidth + bx];
decode_block_params(s, arith, block, s->blwidth, bx, by);
propagate_block_data(block, s->blwidth, step);
}
}
}
static int weight(int i, int blen, int offset)
{
#define ROLLOFF(i) offset == 1 ? ((i) ? 5 : 3) : \
(1 + (6*(i) + offset - 1) / (2*offset - 1))
if (i < 2*offset)
return ROLLOFF(i);
else if (i > blen-1 - 2*offset)
return ROLLOFF(blen-1 - i);
return 8;
}
static void init_obmc_weight_row(Plane *p, uint8_t *obmc_weight, int stride,
int left, int right, int wy)
{
int x;
for (x = 0; left && x < p->xblen >> 1; x++)
obmc_weight[x] = wy*8;
for (; x < p->xblen >> right; x++)
obmc_weight[x] = wy*weight(x, p->xblen, p->xoffset);
for (; x < p->xblen; x++)
obmc_weight[x] = wy*8;
for (; x < stride; x++)
obmc_weight[x] = 0;
}
static void init_obmc_weight(Plane *p, uint8_t *obmc_weight, int stride,
int left, int right, int top, int bottom)
{
int y;
for (y = 0; top && y < p->yblen >> 1; y++) {
init_obmc_weight_row(p, obmc_weight, stride, left, right, 8);
obmc_weight += stride;
}
for (; y < p->yblen >> bottom; y++) {
int wy = weight(y, p->yblen, p->yoffset);
init_obmc_weight_row(p, obmc_weight, stride, left, right, wy);
obmc_weight += stride;
}
for (; y < p->yblen; y++) {
init_obmc_weight_row(p, obmc_weight, stride, left, right, 8);
obmc_weight += stride;
}
}
static void init_obmc_weights(DiracContext *s, Plane *p, int by)
{
int top = !by;
int bottom = by == s->blheight-1;
// don't bother re-initing for rows 2 to blheight-2, the weights don't change
if (top || bottom || by == 1) {
init_obmc_weight(p, s->obmc_weight[0], MAX_BLOCKSIZE, 1, 0, top, bottom);
init_obmc_weight(p, s->obmc_weight[1], MAX_BLOCKSIZE, 0, 0, top, bottom);
init_obmc_weight(p, s->obmc_weight[2], MAX_BLOCKSIZE, 0, 1, top, bottom);
}
}
static const uint8_t epel_weights[4][4][4] = {
{{ 16, 0, 0, 0 },
{ 12, 4, 0, 0 },
{ 8, 8, 0, 0 },
{ 4, 12, 0, 0 }},
{{ 12, 0, 4, 0 },
{ 9, 3, 3, 1 },
{ 6, 6, 2, 2 },
{ 3, 9, 1, 3 }},
{{ 8, 0, 8, 0 },
{ 6, 2, 6, 2 },
{ 4, 4, 4, 4 },
{ 2, 6, 2, 6 }},
{{ 4, 0, 12, 0 },
{ 3, 1, 9, 3 },
{ 2, 2, 6, 6 },
{ 1, 3, 3, 9 }}
};
/**
* For block x,y, determine which of the hpel planes to do bilinear
* interpolation from and set src[] to the location in each hpel plane
* to MC from.
*
* @return the index of the put_dirac_pixels_tab function to use
* 0 for 1 plane (fpel,hpel), 1 for 2 planes (qpel), 2 for 4 planes (qpel), and 3 for epel
*/
static int mc_subpel(DiracContext *s, DiracBlock *block, const uint8_t *src[5],
int x, int y, int ref, int plane)
{
Plane *p = &s->plane[plane];
uint8_t **ref_hpel = s->ref_pics[ref]->hpel[plane];
int motion_x = block->u.mv[ref][0];
int motion_y = block->u.mv[ref][1];
int mx, my, i, epel, nplanes = 0;
if (plane) {
motion_x >>= s->chroma_x_shift;
motion_y >>= s->chroma_y_shift;
}
mx = motion_x & ~(-1 << s->mv_precision);
my = motion_y & ~(-1 << s->mv_precision);
motion_x >>= s->mv_precision;
motion_y >>= s->mv_precision;
// normalize subpel coordinates to epel
// TODO: template this function?
mx <<= 3-s->mv_precision;
my <<= 3-s->mv_precision;
x += motion_x;
y += motion_y;
epel = (mx|my)&1;
// hpel position
if (!((mx|my)&3)) {
nplanes = 1;
src[0] = ref_hpel[(my>>1)+(mx>>2)] + y*p->stride + x;
} else {
// qpel or epel
nplanes = 4;
for (i = 0; i < 4; i++)
src[i] = ref_hpel[i] + y*p->stride + x;
// if we're interpolating in the right/bottom halves, adjust the planes as needed
// we increment x/y because the edge changes for half of the pixels
if (mx > 4) {
src[0] += 1;
src[2] += 1;
x++;
}
if (my > 4) {
src[0] += p->stride;
src[1] += p->stride;
y++;
}
// hpel planes are:
// [0]: F [1]: H
// [2]: V [3]: C
if (!epel) {
// check if we really only need 2 planes since either mx or my is
// a hpel position. (epel weights of 0 handle this there)
if (!(mx&3)) {
// mx == 0: average [0] and [2]
// mx == 4: average [1] and [3]
src[!mx] = src[2 + !!mx];
nplanes = 2;
} else if (!(my&3)) {
src[0] = src[(my>>1) ];
src[1] = src[(my>>1)+1];
nplanes = 2;
}
} else {
// adjust the ordering if needed so the weights work
if (mx > 4) {
FFSWAP(const uint8_t *, src[0], src[1]);
FFSWAP(const uint8_t *, src[2], src[3]);
}
if (my > 4) {
FFSWAP(const uint8_t *, src[0], src[2]);
FFSWAP(const uint8_t *, src[1], src[3]);
}
src[4] = epel_weights[my&3][mx&3];
}
}
// fixme: v/h _edge_pos
if ((unsigned)x > p->width +EDGE_WIDTH/2 - p->xblen ||
(unsigned)y > p->height+EDGE_WIDTH/2 - p->yblen) {
for (i = 0; i < nplanes; i++) {
ff_emulated_edge_mc(s->edge_emu_buffer[i], src[i], p->stride,
p->xblen, p->yblen, x, y,
p->width+EDGE_WIDTH/2, p->height+EDGE_WIDTH/2);
src[i] = s->edge_emu_buffer[i];
}
}
return (nplanes>>1) + epel;
}
static void add_dc(uint16_t *dst, int dc, int stride,
uint8_t *obmc_weight, int xblen, int yblen)
{
int x, y;
dc += 128;
for (y = 0; y < yblen; y++) {
for (x = 0; x < xblen; x += 2) {
dst[x ] += dc * obmc_weight[x ];
dst[x+1] += dc * obmc_weight[x+1];
}
dst += stride;
obmc_weight += MAX_BLOCKSIZE;
}
}
static void block_mc(DiracContext *s, DiracBlock *block,
uint16_t *mctmp, uint8_t *obmc_weight,
int plane, int dstx, int dsty)
{
Plane *p = &s->plane[plane];
const uint8_t *src[5];
int idx;
switch (block->ref&3) {
case 0: // DC
add_dc(mctmp, block->u.dc[plane], p->stride, obmc_weight, p->xblen, p->yblen);
return;
case 1:
case 2:
idx = mc_subpel(s, block, src, dstx, dsty, (block->ref&3)-1, plane);
s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
if (s->weight_func)
s->weight_func(s->mcscratch, p->stride, s->weight_log2denom,
s->weight[0] + s->weight[1], p->yblen);
break;
case 3:
idx = mc_subpel(s, block, src, dstx, dsty, 0, plane);
s->put_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
idx = mc_subpel(s, block, src, dstx, dsty, 1, plane);
if (s->biweight_func) {
// fixme: +32 is a quick hack
s->put_pixels_tab[idx](s->mcscratch + 32, src, p->stride, p->yblen);
s->biweight_func(s->mcscratch, s->mcscratch+32, p->stride, s->weight_log2denom,
s->weight[0], s->weight[1], p->yblen);
} else
s->avg_pixels_tab[idx](s->mcscratch, src, p->stride, p->yblen);
break;
}
s->add_obmc(mctmp, s->mcscratch, p->stride, obmc_weight, p->yblen);
}
static void mc_row(DiracContext *s, DiracBlock *block, uint16_t *mctmp, int plane, int dsty)
{
Plane *p = &s->plane[plane];
int x, dstx = p->xbsep - p->xoffset;
block_mc(s, block, mctmp, s->obmc_weight[0], plane, -p->xoffset, dsty);
mctmp += p->xbsep;
for (x = 1; x < s->blwidth-1; x++) {
block_mc(s, block+x, mctmp, s->obmc_weight[1], plane, dstx, dsty);
dstx += p->xbsep;
mctmp += p->xbsep;
}
block_mc(s, block+x, mctmp, s->obmc_weight[2], plane, dstx, dsty);
}
static void select_dsp_funcs(DiracContext *s, int width, int height, int xblen, int yblen)
{
int idx = 0;
if (xblen > 8)
idx = 1;
if (xblen > 16)
idx = 2;
memcpy(s->put_pixels_tab, s->diracdsp.put_dirac_pixels_tab[idx], sizeof(s->put_pixels_tab));
memcpy(s->avg_pixels_tab, s->diracdsp.avg_dirac_pixels_tab[idx], sizeof(s->avg_pixels_tab));
s->add_obmc = s->diracdsp.add_dirac_obmc[idx];
if (s->weight_log2denom > 1 || s->weight[0] != 1 || s->weight[1] != 1) {
s->weight_func = s->diracdsp.weight_dirac_pixels_tab[idx];
s->biweight_func = s->diracdsp.biweight_dirac_pixels_tab[idx];
} else {
s->weight_func = NULL;
s->biweight_func = NULL;
}
}
static void interpolate_refplane(DiracContext *s, DiracFrame *ref, int plane, int width, int height)
{
// chroma allocates an edge of 8 when subsampled
// which for 4:2:2 means an h edge of 16 and v edge of 8
// just use 8 for everything for the moment
int i, edge = EDGE_WIDTH/2;
ref->hpel[plane][0] = ref->avframe.data[plane];
s->dsp.draw_edges(ref->hpel[plane][0], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM); //EDGE_TOP | EDGE_BOTTOM values just copied to make it build, this needs to be ensured
// no need for hpel if we only have fpel vectors
if (!s->mv_precision)
return;
for (i = 1; i < 4; i++) {
if (!ref->hpel_base[plane][i])
ref->hpel_base[plane][i] = av_malloc((height+2*edge) * ref->avframe.linesize[plane] + 32);
// we need to be 16-byte aligned even for chroma
ref->hpel[plane][i] = ref->hpel_base[plane][i] + edge*ref->avframe.linesize[plane] + 16;
}
if (!ref->interpolated[plane]) {
s->diracdsp.dirac_hpel_filter(ref->hpel[plane][1], ref->hpel[plane][2],
ref->hpel[plane][3], ref->hpel[plane][0],
ref->avframe.linesize[plane], width, height);
s->dsp.draw_edges(ref->hpel[plane][1], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
s->dsp.draw_edges(ref->hpel[plane][2], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
s->dsp.draw_edges(ref->hpel[plane][3], ref->avframe.linesize[plane], width, height, edge, edge, EDGE_TOP | EDGE_BOTTOM);
}
ref->interpolated[plane] = 1;
}
//[DIRAC_STD] 13.0 Transform data syntax. transform_data()
static int dirac_decode_frame_internal(DiracContext *s)
{
DWTContext d;
int y, i, comp, dsty;
if (s->low_delay) {
//[DIRAC_STD] 13.5.1 low_delay_transform_data()
for (comp = 0; comp < 3; comp++) {
Plane *p = &s->plane[comp];
memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
}
if (!s->zero_res)
decode_lowdelay(s);
}
for (comp = 0; comp < 3; comp++) {
Plane *p = &s->plane[comp];
uint8_t *frame = s->current_picture->avframe.data[comp];
// FIXME: small resolutions
for (i = 0; i < 4; i++)
s->edge_emu_buffer[i] = s->edge_emu_buffer_base + i*FFALIGN(p->width, 16);
if (!s->zero_res && !s->low_delay)
{
memset(p->idwt_buf, 0, p->idwt_stride * p->idwt_height * sizeof(IDWTELEM));
decode_component(s, comp); //[DIRAC_STD] 13.4.1 core_transform_data()
}
if (ff_spatial_idwt_init2(&d, p->idwt_buf, p->idwt_width, p->idwt_height, p->idwt_stride,
s->wavelet_idx+2, s->wavelet_depth, p->idwt_tmp))
return -1;
if (!s->num_refs) { //intra
for (y = 0; y < p->height; y += 16) {
ff_spatial_idwt_slice2(&d, y+16); //decode
s->diracdsp.put_signed_rect_clamped(frame + y*p->stride, p->stride,
p->idwt_buf + y*p->idwt_stride, p->idwt_stride, p->width, 16);
}
} else { //inter
int rowheight = p->ybsep*p->stride;
select_dsp_funcs(s, p->width, p->height, p->xblen, p->yblen);
for (i = 0; i < s->num_refs; i++)
interpolate_refplane(s, s->ref_pics[i], comp, p->width, p->height);
memset(s->mctmp, 0, 4*p->yoffset*p->stride);
dsty = -p->yoffset;
for (y = 0; y < s->blheight; y++) {
int h = 0, start = FFMAX(dsty, 0);
uint16_t *mctmp = s->mctmp + y*rowheight;
DiracBlock *blocks = s->blmotion + y*s->blwidth;
init_obmc_weights(s, p, y);
if (y == s->blheight-1 || start+p->ybsep > p->height)
h = p->height - start;
else
h = p->ybsep - (start - dsty);
if (h < 0)
break;
memset(mctmp+2*p->yoffset*p->stride, 0, 2*rowheight);
mc_row(s, blocks, mctmp, comp, dsty);
mctmp += (start - dsty)*p->stride + p->xoffset;
ff_spatial_idwt_slice2(&d, start + h); //decode
s->diracdsp.add_rect_clamped(frame + start*p->stride, mctmp, p->stride,
p->idwt_buf + start*p->idwt_stride, p->idwt_stride, p->width, h);
dsty += p->ybsep;
}
}
}
return 0;
}
//[DIRAC_STD] 11.1.1 Picture Header. picture_header()
static int dirac_decode_picture_header(DiracContext *s)
{
int retire, picnum;
int i, j, refnum, refdist;
GetBitContext *gb = &s->gb;
//[DIRAC_STD] 11.1.1 Picture Header. picture_header() PICTURE_NUM
picnum = s->current_picture->avframe.display_picture_number = get_bits_long(gb, 32);
av_log(s->avctx,AV_LOG_DEBUG,"PICTURE_NUM: %d\n",picnum);
// if this is the first keyframe after a sequence header, start our
// reordering from here
if (s->frame_number < 0)
s->frame_number = picnum;
s->ref_pics[0] = s->ref_pics[1] = NULL;
for (i = 0; i < s->num_refs; i++) {
refnum = picnum + dirac_get_se_golomb(gb);
refdist = INT_MAX;
// find the closest reference to the one we want
// Jordi: this is needed if the referenced picture hasn't yet arrived
for (j = 0; j < MAX_REFERENCE_FRAMES && refdist; j++)
if (s->ref_frames[j]
&& FFABS(s->ref_frames[j]->avframe.display_picture_number - refnum) < refdist) {
s->ref_pics[i] = s->ref_frames[j];
refdist = FFABS(s->ref_frames[j]->avframe.display_picture_number - refnum);
}
if (!s->ref_pics[i] || refdist)
av_log(s->avctx, AV_LOG_DEBUG, "Reference not found\n");
// if there were no references at all, allocate one
if (!s->ref_pics[i])
for (j = 0; j < MAX_FRAMES; j++)
if (!s->all_frames[j].avframe.data[0]) {
s->ref_pics[i] = &s->all_frames[j];
s->avctx->get_buffer(s->avctx, &s->ref_pics[i]->avframe);
}
}
// retire the reference frames that are not used anymore
if (s->current_picture->avframe.reference) {
retire = picnum + dirac_get_se_golomb(gb);
if (retire != picnum) {
DiracFrame *retire_pic = remove_frame(s->ref_frames, retire);
if (retire_pic)
retire_pic->avframe.reference &= DELAYED_PIC_REF;
else
av_log(s->avctx, AV_LOG_DEBUG, "Frame to retire not found\n");
}
// if reference array is full, remove the oldest as per the spec
while (add_frame(s->ref_frames, MAX_REFERENCE_FRAMES, s->current_picture)) {
av_log(s->avctx, AV_LOG_ERROR, "Reference frame overflow\n");
remove_frame(s->ref_frames, s->ref_frames[0]->avframe.display_picture_number)->avframe.reference &= DELAYED_PIC_REF;
}
}
if (s->num_refs) {
if (dirac_unpack_prediction_parameters(s)) //[DIRAC_STD] 11.2 Picture Prediction Data. picture_prediction()
return -1;
dirac_unpack_block_motion_data(s); //[DIRAC_STD] 12. Block motion data syntax
}
if (dirac_unpack_idwt_params(s)) //[DIRAC_STD] 11.3 Wavelet transform data
return -1;
init_planes(s); //Jordi... ????
return 0;
}
static int get_delayed_pic(DiracContext *s, DiracFrame *picture, int *data_size)
{
DiracFrame *out = s->delay_frames[0];
int i, out_idx = 0;
// find frame with lowest picture number
for (i = 1; s->delay_frames[i]; i++)
if (s->delay_frames[i]->avframe.display_picture_number < out->avframe.display_picture_number) {
out = s->delay_frames[i];
out_idx = i;
}
for (i = out_idx; s->delay_frames[i]; i++)
s->delay_frames[i] = s->delay_frames[i+1];
if (out) {
out->avframe.reference ^= DELAYED_PIC_REF;
*data_size = sizeof(DiracFrame);
*picture = *out;
}
return 0;
}
// [DIRAC_STD] 9.6 Parse Info Header Syntax. parse_info()
// 4 byte start code + byte parse code + 4 byte size + 4 byte previous size
#define DATA_UNIT_HEADER_SIZE 13
//[DIRAC_STD] dirac_decode_data_unit makes reference to the while defined in 9.3 inside the function parse_sequence()
static int dirac_decode_data_unit(AVCodecContext *avctx, const uint8_t *buf, int size)
{
DiracContext *s = avctx->priv_data;
DiracFrame *pic = NULL;
int i, parse_code = buf[4];
if (size < DATA_UNIT_HEADER_SIZE)
return -1;
init_get_bits(&s->gb, &buf[13], 8*(size - DATA_UNIT_HEADER_SIZE));
if (parse_code == pc_seq_header) {
if (s->seen_sequence_header)
return 0;
//[DIRAC_STD] 10. Sequence header
if (avpriv_dirac_parse_sequence_header(avctx, &s->gb, &s->source))
return -1;
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
if (alloc_sequence_buffers(s))
return -1;
s->seen_sequence_header = 1;
} else if (parse_code == pc_eos) { //[DIRAC_STD] End of Sequence
free_sequence_buffers(s);
s->seen_sequence_header = 0;
} else if (parse_code == pc_aux_data) {
if (buf[13] == 1) { // encoder implementation/version
int ver[3];
// versions older than 1.0.8 don't store quant delta for
// subbands with only one codeblock
if (sscanf(buf+14, "Schroedinger %d.%d.%d", ver, ver+1, ver+2) == 3)
if (ver[0] == 1 && ver[1] == 0 && ver[2] <= 7)
s->old_delta_quant = 1;
}
} else if (parse_code & 0x8) { // picture data unit
if (!s->seen_sequence_header) {
av_log(avctx, AV_LOG_DEBUG, "Dropping frame without sequence header\n");
return -1;
}
// find an unused frame
for (i = 0; i < MAX_FRAMES; i++)
if (s->all_frames[i].avframe.data[0] == NULL)
pic = &s->all_frames[i];
if (!pic) {
av_log(avctx, AV_LOG_ERROR, "framelist full\n");
return -1;
}
avcodec_get_frame_defaults(&pic->avframe);
//[DIRAC_STD] Defined in 9.6.1 ...
s->num_refs = parse_code & 0x03; //[DIRAC_STD] num_refs()
s->is_arith = (parse_code & 0x48) == 0x08; //[DIRAC_STD] using_ac()
s->low_delay = (parse_code & 0x88) == 0x88; //[DIRAC_STD] is_low_delay()
pic->avframe.reference = (parse_code & 0x0C) == 0x0C; //[DIRAC_STD] is_reference()
pic->avframe.key_frame = s->num_refs == 0; //[DIRAC_STD] is_intra()
pic->avframe.pict_type = s->num_refs + 1; //Definition of AVPictureType in avutil.h
if (avctx->get_buffer(avctx, &pic->avframe) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
s->current_picture = pic;
s->plane[0].stride = pic->avframe.linesize[0];
s->plane[1].stride = pic->avframe.linesize[1];
s->plane[2].stride = pic->avframe.linesize[2];
//[DIRAC_STD] 11.1 Picture parse. picture_parse()
if (dirac_decode_picture_header(s))
return -1;
//[DIRAC_STD] 13.0 Transform data syntax. transform_data()
if (dirac_decode_frame_internal(s))
return -1;
}
return 0;
}
static int dirac_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *pkt)
{
DiracContext *s = avctx->priv_data;
DiracFrame *picture = data;
uint8_t *buf = pkt->data;
int buf_size = pkt->size;
int i, data_unit_size, buf_idx = 0;
// release unused frames
for (i = 0; i < MAX_FRAMES; i++)
if (s->all_frames[i].avframe.data[0] && !s->all_frames[i].avframe.reference) {
avctx->release_buffer(avctx, &s->all_frames[i].avframe);
memset(s->all_frames[i].interpolated, 0, sizeof(s->all_frames[i].interpolated));
}
s->current_picture = NULL;
*data_size = 0;
// end of stream, so flush delayed pics
if (buf_size == 0)
return get_delayed_pic(s, picture, data_size);
for (;;) {
//[DIRAC_STD] Here starts the code from parse_info() defined in 9.6
//[DIRAC_STD] PARSE_INFO_PREFIX = "BBCD" as defined in ISO/IEC 646
// BBCD start code search
for (; buf_idx + DATA_UNIT_HEADER_SIZE < buf_size; buf_idx++) {
if (buf[buf_idx ] == 'B' && buf[buf_idx+1] == 'B' &&
buf[buf_idx+2] == 'C' && buf[buf_idx+3] == 'D')
break;
}
//BBCD found or end of data
if (buf_idx + DATA_UNIT_HEADER_SIZE >= buf_size)
break;
data_unit_size = AV_RB32(buf+buf_idx+5);
if (buf_idx + data_unit_size > buf_size) {
av_log(s->avctx, AV_LOG_ERROR,
"Data unit with size %d is larger than input buffer, discarding\n",
data_unit_size);
buf_idx += 4;
continue;
}
// [DIRAC_STD] dirac_decode_data_unit makes reference to the while defined in 9.3 inside the function parse_sequence()
if (dirac_decode_data_unit(avctx, buf+buf_idx, data_unit_size))
return -1;
buf_idx += data_unit_size;
}
if (!s->current_picture)
return 0;
if (s->current_picture->avframe.display_picture_number > s->frame_number) {
DiracFrame *delayed_frame = remove_frame(s->delay_frames, s->frame_number);
s->current_picture->avframe.reference |= DELAYED_PIC_REF;
if (add_frame(s->delay_frames, MAX_DELAY, s->current_picture)) {
int min_num = s->delay_frames[0]->avframe.display_picture_number;
// Too many delayed frames, so we display the frame with the lowest pts
av_log(avctx, AV_LOG_ERROR, "Delay frame overflow\n");
delayed_frame = s->delay_frames[0];
for (i = 1; s->delay_frames[i]; i++)
if (s->delay_frames[i]->avframe.display_picture_number < min_num)
min_num = s->delay_frames[i]->avframe.display_picture_number;
delayed_frame = remove_frame(s->delay_frames, min_num);
add_frame(s->delay_frames, MAX_DELAY, s->current_picture);
}
if (delayed_frame) {
delayed_frame->avframe.reference ^= DELAYED_PIC_REF;
*data_size = sizeof(DiracFrame);
*picture = *delayed_frame;
}
} else if (s->current_picture->avframe.display_picture_number == s->frame_number) {
// The right frame at the right time :-)
*data_size = sizeof(DiracFrame);
*picture = *s->current_picture;
}
if (*data_size)
s->frame_number = picture->avframe.display_picture_number + 1;
return buf_idx;
}
AVCodec ff_dirac_decoder = {
"dirac",
AVMEDIA_TYPE_VIDEO, //CODEC_TYPE_VIDEO --> AVMEDIA_TYPE_VIDEO
CODEC_ID_DIRAC,
sizeof(DiracContext),
dirac_decode_init,
NULL,
dirac_decode_end,
dirac_decode_frame,
CODEC_CAP_DELAY,
.flush = dirac_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("BBC Dirac VC-2"),
};
libavcodec/diracdsp.c 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (C) 2009 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "dsputil.h"
#include "diracdsp.h"
//MMX_DISABLE #include "libavcodec/x86/diracdsp_mmx.h"
#define FILTER(src, stride) \
((21*((src)[ 0*stride] + (src)[1*stride]) \
-7*((src)[-1*stride] + (src)[2*stride]) \
+3*((src)[-2*stride] + (src)[3*stride]) \
-1*((src)[-3*stride] + (src)[4*stride]) + 16) >> 5)
static void dirac_hpel_filter(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, uint8_t *src,
int stride, int width, int height)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = -3; x < width+5; x++)
dstv[x] = av_clip_uint8(FILTER(src+x, stride));
for (x = 0; x < width; x++)
dstc[x] = av_clip_uint8(FILTER(dstv+x, 1));
for (x = 0; x < width; x++)
dsth[x] = av_clip_uint8(FILTER(src+x, 1));
src += stride;
dsth += stride;
dstv += stride;
dstc += stride;
}
}
#define PIXOP_BILINEAR(PFX, OP, WIDTH) \
static void ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
int x;\
const uint8_t *s0 = src[0];\
const uint8_t *s1 = src[1];\
const uint8_t *s2 = src[2];\
const uint8_t *s3 = src[3];\
const uint8_t *w = src[4];\
\
while (h--) {\
for (x = 0; x < WIDTH; x++) {\
OP(dst[x], (s0[x]*w[0] + s1[x]*w[1] + s2[x]*w[2] + s3[x]*w[3] + 8) >> 4);\
}\
\
dst += stride;\
s0 += stride;\
s1 += stride;\
s2 += stride;\
s3 += stride;\
}\
}
#define OP_PUT(dst, val) (dst) = (val)
#define OP_AVG(dst, val) (dst) = (((dst) + (val) + 1)>>1)
PIXOP_BILINEAR(put, OP_PUT, 8)
PIXOP_BILINEAR(put, OP_PUT, 16)
PIXOP_BILINEAR(put, OP_PUT, 32)
PIXOP_BILINEAR(avg, OP_AVG, 8)
PIXOP_BILINEAR(avg, OP_AVG, 16)
PIXOP_BILINEAR(avg, OP_AVG, 32)
#define op_scale1(x) block[x] = av_clip_uint8( (block[x]*weight + (1<<(log2_denom-1))) >> log2_denom)
#define op_scale2(x) dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + (1<<(log2_denom-1))) >> log2_denom)
#define DIRAC_WEIGHT(W) \
static void weight_dirac_pixels ## W ## _c(uint8_t *block, int stride, int log2_denom, \
int weight, int h) { \
int x; \
while (h--) { \
for (x = 0; x < W; x++) { \
op_scale1(x); \
op_scale1(x+1); \
} \
block += stride; \
} \
} \
static void biweight_dirac_pixels ## W ## _c(uint8_t *dst, uint8_t *src, int stride, int log2_denom, \
int weightd, int weights, int h) { \
int x; \
while (h--) { \
for (x = 0; x < W; x++) { \
op_scale2(x); \
op_scale2(x+1); \
} \
dst += stride; \
src += stride; \
} \
}
DIRAC_WEIGHT(8)
DIRAC_WEIGHT(16)
DIRAC_WEIGHT(32)
#define ADD_OBMC(xblen) \
static void add_obmc ## xblen ## _c(uint16_t *dst, const uint8_t *src, int stride, \
const uint8_t *obmc_weight, int yblen) \
{ \
int x; \
while (yblen--) { \
for (x = 0; x < xblen; x += 2) { \
dst[x ] += src[x ] * obmc_weight[x ]; \
dst[x+1] += src[x+1] * obmc_weight[x+1]; \
} \
dst += stride; \
src += stride; \
obmc_weight += 32; \
} \
}
ADD_OBMC(8)
ADD_OBMC(16)
ADD_OBMC(32)
static void put_signed_rect_clamped_c(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x+=4) {
dst[x ] = av_clip_uint8(src[x ] + 128);
dst[x+1] = av_clip_uint8(src[x+1] + 128);
dst[x+2] = av_clip_uint8(src[x+2] + 128);
dst[x+3] = av_clip_uint8(src[x+3] + 128);
}
dst += dst_stride;
src += src_stride;
}
}
static void add_rect_clamped_c(uint8_t *dst, const uint16_t *src, int stride,
const int16_t *idwt, int idwt_stride,
int width, int height)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x+=2) {
dst[x ] = av_clip_uint8(((src[x ]+32)>>6) + idwt[x ]);
dst[x+1] = av_clip_uint8(((src[x+1]+32)>>6) + idwt[x+1]);
}
dst += stride;
src += stride;
idwt += idwt_stride;
}
}
#define PIXFUNC(PFX, WIDTH) \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][0] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _c; \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][1] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l2_c; \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][2] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l4_c; \
c->PFX ## _dirac_pixels_tab[WIDTH>>4][3] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c
void ff_diracdsp_init(DiracDSPContext *c)
{
c->dirac_hpel_filter = dirac_hpel_filter;
c->add_rect_clamped = add_rect_clamped_c;
c->put_signed_rect_clamped = put_signed_rect_clamped_c;
c->add_dirac_obmc[0] = add_obmc8_c;
c->add_dirac_obmc[1] = add_obmc16_c;
c->add_dirac_obmc[2] = add_obmc32_c;
c->weight_dirac_pixels_tab[0] = weight_dirac_pixels8_c;
c->weight_dirac_pixels_tab[1] = weight_dirac_pixels16_c;
c->weight_dirac_pixels_tab[2] = weight_dirac_pixels32_c;
c->biweight_dirac_pixels_tab[0] = biweight_dirac_pixels8_c;
c->biweight_dirac_pixels_tab[1] = biweight_dirac_pixels16_c;
c->biweight_dirac_pixels_tab[2] = biweight_dirac_pixels32_c;
PIXFUNC(put, 8);
PIXFUNC(put, 16);
PIXFUNC(put, 32);
PIXFUNC(avg, 8);
PIXFUNC(avg, 16);
PIXFUNC(avg, 32);
//MMX_DISABLE if (HAVE_MMX) ff_diracdsp_init_mmx(c);
}
libavcodec/diracdsp.h 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (C) 2010 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DIRACDSP_H
#define AVCODEC_DIRACDSP_H
typedef void (*dirac_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int h);
typedef void (*dirac_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int h);
typedef struct {
void (*dirac_hpel_filter)(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, uint8_t *src, int stride, int width, int height);
/**
* dirac_pixels_tab[width][subpel]
* width is 2 for 32, 1 for 16, 0 for 8
* subpel is 0 for fpel and hpel (only need to copy from the first plane in src)
* 1 if an average of the first 2 planes is needed (TODO: worth it?)
* 2 for general qpel (avg of 4)
* 3 for general epel (biweight of 4 using the weights in src[4])
* src[0-3] is each of the hpel planes
* src[4] is the 1/8 pel weights if needed
*/
void (*put_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void (*avg_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void (*put_signed_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const int16_t *src/*align 16*/, int src_stride, int width, int height/*mod 2*/);
void (*put_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const int16_t *src/*align 16*/, int src_stride, int width, int height/*mod 2*/);
void (*add_rect_clamped)(uint8_t *dst/*align 16*/, const uint16_t *src/*align 16*/, int stride, const int16_t *idwt/*align 16*/, int idwt_stride, int width, int height/*mod 2*/);
void (*add_dirac_obmc[3])(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
dirac_weight_func weight_dirac_pixels_tab[3];
dirac_biweight_func biweight_dirac_pixels_tab[3];
} DiracDSPContext;
#define DECL_DIRAC_PIXOP(PFX, EXT) \
void ff_ ## PFX ## _dirac_pixels8_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \
void ff_ ## PFX ## _dirac_pixels16_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \
void ff_ ## PFX ## _dirac_pixels32_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)
DECL_DIRAC_PIXOP(put, c);
DECL_DIRAC_PIXOP(avg, c);
DECL_DIRAC_PIXOP(put, l2_c);
DECL_DIRAC_PIXOP(avg, l2_c);
DECL_DIRAC_PIXOP(put, l4_c);
DECL_DIRAC_PIXOP(avg, l4_c);
void ff_diracdsp_init(DiracDSPContext *c);
#endif
libavcodec/dsputil.c
View file @ 5d50fcc5
......@@ -38,6 +38,7 @@
#include "config.h"
#include "ac3dec.h"
#include "vorbis.h"
#include "diracdsp.h"
uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
uint32_t ff_squareTbl[512] = {0, };
......@@ -1328,6 +1329,51 @@ void ff_avg_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride){
}
#endif /* CONFIG_RV40_DECODER */
#if CONFIG_DIRAC_DECODER
#define DIRAC_MC(OPNAME)\
void ff_ ## OPNAME ## _dirac_pixels8_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels8_8_c(dst, src[0], stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_8_c(dst, src[0], stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_8_c(dst , src[0] , stride, h);\
OPNAME ## _pixels16_8_c(dst+16, src[0]+16, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels8_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels8_l2_8(dst, src[0], src[1], stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_l2_8(dst, src[0], src[1], stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_l2_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_l2_8(dst , src[0] , src[1] , stride, stride, stride, h);\
OPNAME ## _pixels16_l2_8(dst+16, src[0]+16, src[1]+16, stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels8_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels8_l4_8(dst, src[0], src[1], src[2], src[3], stride, stride, stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_l4_8(dst, src[0], src[1], src[2], src[3], stride, stride, stride, stride, stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_l4_c(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_l4_8(dst , src[0] , src[1] , src[2] , src[3] , stride, stride, stride, stride, stride, h);\
OPNAME ## _pixels16_l4_8(dst+16, src[0]+16, src[1]+16, src[2]+16, src[3]+16, stride, stride, stride, stride, stride, h);\
}
DIRAC_MC(put)
DIRAC_MC(avg)
#endif
static void wmv2_mspel8_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int w){
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
int i;
......
libavcodec/dwt.c
View file @ 5d50fcc5
/*
* Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
* Copyright (C) 2008 David Conrad
*
* This file is part of FFmpeg.
*
......@@ -21,6 +22,7 @@
#include "libavutil/attributes.h"
#include "dsputil.h"
#include "dwt.h"
#include "libavcodec/x86/dwt.h"
void ff_slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer)
{
......@@ -841,3 +843,541 @@ void ff_dwt_init(DWTContext *c)
if (HAVE_MMX) ff_dwt_init_x86(c);
}
static av_always_inline
void interleave(IDWTELEM *dst, IDWTELEM *src0, IDWTELEM *src1, int w2, int add, int shift)
{
int i;
for (i = 0; i < w2; i++) {
dst[2*i ] = (src0[i] + add) >> shift;
dst[2*i+1] = (src1[i] + add) >> shift;
}
}
static void horizontal_compose_dirac53i(IDWTELEM *b, IDWTELEM *temp, int w)
{
const int w2 = w >> 1;
int x;
temp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]);
for (x = 1; x < w2; x++) {
temp[x ] = COMPOSE_53iL0 (b[x+w2-1], b[x ], b[x+w2]);
temp[x+w2-1] = COMPOSE_DIRAC53iH0(temp[x-1], b[x+w2-1], temp[x]);
}
temp[w-1] = COMPOSE_DIRAC53iH0(temp[w2-1], b[w-1], temp[w2-1]);
interleave(b, temp, temp+w2, w2, 1, 1);
}
static void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int w)
{
const int w2 = w >> 1;
int x;
tmp[0] = COMPOSE_53iL0(b[w2], b[0], b[w2]);
for (x = 1; x < w2; x++)
tmp[x] = COMPOSE_53iL0(b[x+w2-1], b[x], b[x+w2]);
// extend the edges
tmp[-1] = tmp[0];
tmp[w2+1] = tmp[w2] = tmp[w2-1];
for (x = 0; x < w2; x++) {
b[2*x ] = (tmp[x] + 1)>>1;
b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
}
}
static void horizontal_compose_dd137i(IDWTELEM *b, IDWTELEM *tmp, int w)
{
const int w2 = w >> 1;
int x;
tmp[0] = COMPOSE_DD137iL0(b[w2], b[w2], b[0], b[w2 ], b[w2+1]);
tmp[1] = COMPOSE_DD137iL0(b[w2], b[w2], b[1], b[w2+1], b[w2+2]);
for (x = 2; x < w2-1; x++)
tmp[x] = COMPOSE_DD137iL0(b[x+w2-2], b[x+w2-1], b[x], b[x+w2], b[x+w2+1]);
tmp[w2-1] = COMPOSE_DD137iL0(b[w-3], b[w-2], b[w2-1], b[w-1], b[w-1]);
// extend the edges
tmp[-1] = tmp[0];
tmp[w2+1] = tmp[w2] = tmp[w2-1];
for (x = 0; x < w2; x++) {
b[2*x ] = (tmp[x] + 1)>>1;
b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
}
}
static av_always_inline
void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *temp, int w, int shift)
{
const int w2 = w >> 1;
int x;
for (x = 0; x < w2; x++) {
temp[x ] = COMPOSE_HAARiL0(b[x ], b[x+w2]);
temp[x+w2] = COMPOSE_HAARiH0(b[x+w2], temp[x]);
}
interleave(b, temp, temp+w2, w2, shift, shift);
}
static void horizontal_compose_haar0i(IDWTELEM *b, IDWTELEM *temp, int w)
{
horizontal_compose_haari(b, temp, w, 0);
}
static void horizontal_compose_haar1i(IDWTELEM *b, IDWTELEM *temp, int w)
{
horizontal_compose_haari(b, temp, w, 1);
}
static void horizontal_compose_fidelityi(IDWTELEM *b, IDWTELEM *tmp, int w)
{
const int w2 = w >> 1;
int i, x;
IDWTELEM v[8];
for (x = 0; x < w2; x++) {
for (i = 0; i < 8; i++)
v[i] = b[av_clip(x-3+i, 0, w2-1)];
tmp[x] = COMPOSE_FIDELITYiH0(v[0], v[1], v[2], v[3], b[x+w2], v[4], v[5], v[6], v[7]);
}
for (x = 0; x < w2; x++) {
for (i = 0; i < 8; i++)
v[i] = tmp[av_clip(x-4+i, 0, w2-1)];
tmp[x+w2] = COMPOSE_FIDELITYiL0(v[0], v[1], v[2], v[3], b[x], v[4], v[5], v[6], v[7]);
}
interleave(b, tmp+w2, tmp, w2, 0, 0);
}
static void horizontal_compose_daub97i(IDWTELEM *b, IDWTELEM *temp, int w)
{
const int w2 = w >> 1;
int x, b0, b1, b2;
temp[0] = COMPOSE_DAUB97iL1(b[w2], b[0], b[w2]);
for (x = 1; x < w2; x++) {
temp[x ] = COMPOSE_DAUB97iL1(b[x+w2-1], b[x ], b[x+w2]);
temp[x+w2-1] = COMPOSE_DAUB97iH1(temp[x-1], b[x+w2-1], temp[x]);
}
temp[w-1] = COMPOSE_DAUB97iH1(temp[w2-1], b[w-1], temp[w2-1]);
// second stage combined with interleave and shift
b0 = b2 = COMPOSE_DAUB97iL0(temp[w2], temp[0], temp[w2]);
b[0] = (b0 + 1) >> 1;
for (x = 1; x < w2; x++) {
b2 = COMPOSE_DAUB97iL0(temp[x+w2-1], temp[x ], temp[x+w2]);
b1 = COMPOSE_DAUB97iH0( b0, temp[x+w2-1], b2 );
b[2*x-1] = (b1 + 1) >> 1;
b[2*x ] = (b2 + 1) >> 1;
b0 = b2;
}
b[w-1] = (COMPOSE_DAUB97iH0(b2, temp[w-1], b2) + 1) >> 1;
}
static void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
{
int i;
for(i=0; i<width; i++){
b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]);
}
}
static void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
IDWTELEM *b3, IDWTELEM *b4, int width)
{
int i;
for(i=0; i<width; i++){
b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]);
}
}
static void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
IDWTELEM *b3, IDWTELEM *b4, int width)
{
int i;
for(i=0; i<width; i++){
b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]);
}
}
static void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width)
{
int i;
for (i = 0; i < width; i++) {
b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]);
b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]);
}
}
static void vertical_compose_fidelityiH0(IDWTELEM *dst, IDWTELEM *b[8], int width)
{
int i;
for(i=0; i<width; i++){
dst[i] = COMPOSE_FIDELITYiH0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]);
}
}
static void vertical_compose_fidelityiL0(IDWTELEM *dst, IDWTELEM *b[8], int width)
{
int i;
for(i=0; i<width; i++){
dst[i] = COMPOSE_FIDELITYiL0(b[0][i], b[1][i], b[2][i], b[3][i], dst[i], b[4][i], b[5][i], b[6][i], b[7][i]);
}
}
static void vertical_compose_daub97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
{
int i;
for(i=0; i<width; i++){
b1[i] = COMPOSE_DAUB97iH0(b0[i], b1[i], b2[i]);
}
}
static void vertical_compose_daub97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
{
int i;
for(i=0; i<width; i++){
b1[i] = COMPOSE_DAUB97iH1(b0[i], b1[i], b2[i]);
}
}
static void vertical_compose_daub97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
{
int i;
for(i=0; i<width; i++){
b1[i] = COMPOSE_DAUB97iL0(b0[i], b1[i], b2[i]);
}
}
static void vertical_compose_daub97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width)
{
int i;
for(i=0; i<width; i++){
b1[i] = COMPOSE_DAUB97iL1(b0[i], b1[i], b2[i]);
}
}
static void spatial_compose_dd97i_dy(DWTContext *d, int level, int width, int height, int stride)
{
vertical_compose_3tap vertical_compose_l0 = d->vertical_compose_l0;
vertical_compose_5tap vertical_compose_h0 = d->vertical_compose_h0;
DWTCompose *cs = d->cs + level;
int i, y = cs->y;
IDWTELEM *b[8];
for (i = 0; i < 6; i++)
b[i] = cs->b[i];
b[6] = d->buffer + av_clip(y+5, 0, height-2)*stride;
b[7] = d->buffer + av_clip(y+6, 1, height-1)*stride;
if(y+5<(unsigned)height) vertical_compose_l0( b[5], b[6], b[7], width);
if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width);
if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
for (i = 0; i < 6; i++)
cs->b[i] = b[i+2];
cs->y += 2;
}
static void spatial_compose_dirac53i_dy(DWTContext *d, int level, int width, int height, int stride)
{
vertical_compose_3tap vertical_compose_l0 = d->vertical_compose_l0;
vertical_compose_3tap vertical_compose_h0 = d->vertical_compose_h0;
DWTCompose *cs = d->cs + level;
int y= cs->y;
IDWTELEM *b[4] = { cs->b[0], cs->b[1] };
b[2] = d->buffer + mirror(y+1, height-1)*stride;
b[3] = d->buffer + mirror(y+2, height-1)*stride;
if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width);
if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width);
if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
cs->b[0] = b[2];
cs->b[1] = b[3];
cs->y += 2;
}
static void spatial_compose_dd137i_dy(DWTContext *d, int level, int width, int height, int stride)
{
vertical_compose_5tap vertical_compose_l0 = d->vertical_compose_l0;
vertical_compose_5tap vertical_compose_h0 = d->vertical_compose_h0;
DWTCompose *cs = d->cs + level;
int i, y = cs->y;
IDWTELEM *b[10];
for (i = 0; i < 8; i++)
b[i] = cs->b[i];
b[8] = d->buffer + av_clip(y+7, 0, height-2)*stride;
b[9] = d->buffer + av_clip(y+8, 1, height-1)*stride;
if(y+5<(unsigned)height) vertical_compose_l0(b[3], b[5], b[6], b[7], b[9], width);
if(y+1<(unsigned)height) vertical_compose_h0(b[0], b[2], b[3], b[4], b[6], width);
if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
for (i = 0; i < 8; i++)
cs->b[i] = b[i+2];
cs->y += 2;
}
// haar makes the assumption that height is even (always true for dirac)
static void spatial_compose_haari_dy(DWTContext *d, int level, int width, int height, int stride)
{
vertical_compose_2tap vertical_compose = d->vertical_compose;
int y = d->cs[level].y;
IDWTELEM *b0 = d->buffer + (y-1)*stride;
IDWTELEM *b1 = d->buffer + (y )*stride;
vertical_compose(b0, b1, width);
d->horizontal_compose(b0, d->temp, width);
d->horizontal_compose(b1, d->temp, width);
d->cs[level].y += 2;
}
// Don't do sliced idwt for fidelity; the 9 tap filter makes it a bit annoying
// Fortunately, this filter isn't used in practice.
static void spatial_compose_fidelity(DWTContext *d, int level, int width, int height, int stride)
{
vertical_compose_9tap vertical_compose_l0 = d->vertical_compose_l0;
vertical_compose_9tap vertical_compose_h0 = d->vertical_compose_h0;
int i, y;
IDWTELEM *b[8];
for (y = 1; y < height; y += 2) {
for (i = 0; i < 8; i++)
b[i] = d->buffer + av_clip((y-7 + 2*i), 0, height-2)*stride;
vertical_compose_h0(d->buffer + y*stride, b, width);
}
for (y = 0; y < height; y += 2) {
for (i = 0; i < 8; i++)
b[i] = d->buffer + av_clip((y-7 + 2*i), 1, height-1)*stride;
vertical_compose_l0(d->buffer + y*stride, b, width);
}
for (y = 0; y < height; y++)
d->horizontal_compose(d->buffer + y*stride, d->temp, width);
d->cs[level].y = height+1;
}
static void spatial_compose_daub97i_dy(DWTContext *d, int level, int width, int height, int stride)
{
vertical_compose_3tap vertical_compose_l0 = d->vertical_compose_l0;
vertical_compose_3tap vertical_compose_h0 = d->vertical_compose_h0;
vertical_compose_3tap vertical_compose_l1 = d->vertical_compose_l1;
vertical_compose_3tap vertical_compose_h1 = d->vertical_compose_h1;
DWTCompose *cs = d->cs + level;
int i, y = cs->y;
IDWTELEM *b[6];
for (i = 0; i < 4; i++)
b[i] = cs->b[i];
b[4] = d->buffer + mirror(y+3, height-1)*stride;
b[5] = d->buffer + mirror(y+4, height-1)*stride;
if(y+3<(unsigned)height) vertical_compose_l1(b[3], b[4], b[5], width);
if(y+2<(unsigned)height) vertical_compose_h1(b[2], b[3], b[4], width);
if(y+1<(unsigned)height) vertical_compose_l0(b[1], b[2], b[3], width);
if(y+0<(unsigned)height) vertical_compose_h0(b[0], b[1], b[2], width);
if(y-1<(unsigned)height) d->horizontal_compose(b[0], d->temp, width);
if(y+0<(unsigned)height) d->horizontal_compose(b[1], d->temp, width);
for (i = 0; i < 4; i++)
cs->b[i] = b[i+2];
cs->y += 2;
}
static void spatial_compose97i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
{
cs->b[0] = buffer + mirror(-3-1, height-1)*stride;
cs->b[1] = buffer + mirror(-3 , height-1)*stride;
cs->b[2] = buffer + mirror(-3+1, height-1)*stride;
cs->b[3] = buffer + mirror(-3+2, height-1)*stride;
cs->y = -3;
}
static void spatial_compose53i_init2(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
{
cs->b[0] = buffer + mirror(-1-1, height-1)*stride;
cs->b[1] = buffer + mirror(-1 , height-1)*stride;
cs->y = -1;
}
static void spatial_compose_dd97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
{
cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride;
cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride;
cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride;
cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride;
cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride;
cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride;
cs->y = -5;
}
static void spatial_compose_dd137i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride)
{
cs->b[0] = buffer + av_clip(-5-1, 0, height-2)*stride;
cs->b[1] = buffer + av_clip(-5 , 1, height-1)*stride;
cs->b[2] = buffer + av_clip(-5+1, 0, height-2)*stride;
cs->b[3] = buffer + av_clip(-5+2, 1, height-1)*stride;
cs->b[4] = buffer + av_clip(-5+3, 0, height-2)*stride;
cs->b[5] = buffer + av_clip(-5+4, 1, height-1)*stride;
cs->b[6] = buffer + av_clip(-5+5, 0, height-2)*stride;
cs->b[7] = buffer + av_clip(-5+6, 1, height-1)*stride;
cs->y = -5;
}
int ff_spatial_idwt_init2(DWTContext *d, IDWTELEM *buffer, int width, int height,
int stride, enum dwt_type type, int decomposition_count,
IDWTELEM *temp)
{
int level;
d->buffer = buffer;
d->width = width;
d->height = height;
d->stride = stride;
d->decomposition_count = decomposition_count;
d->temp = temp + 8;
for(level=decomposition_count-1; level>=0; level--){
int hl = height >> level;
int stride_l = stride << level;
switch(type){
case DWT_DIRAC_DD9_7:
spatial_compose_dd97i_init(d->cs+level, buffer, hl, stride_l);
break;
case DWT_DIRAC_LEGALL5_3:
spatial_compose53i_init2(d->cs+level, buffer, hl, stride_l);
break;
case DWT_DIRAC_DD13_7:
spatial_compose_dd137i_init(d->cs+level, buffer, hl, stride_l);
break;
case DWT_DIRAC_HAAR0:
case DWT_DIRAC_HAAR1:
d->cs[level].y = 1;
break;
case DWT_DIRAC_DAUB9_7:
spatial_compose97i_init2(d->cs+level, buffer, hl, stride_l);
break;
default:
d->cs[level].y = 0;
break;
}
}
switch (type) {
case DWT_DIRAC_DD9_7:
d->spatial_compose = spatial_compose_dd97i_dy;
d->vertical_compose_l0 = vertical_compose53iL0;
d->vertical_compose_h0 = vertical_compose_dd97iH0;
d->horizontal_compose = horizontal_compose_dd97i;
d->support = 7;
break;
case DWT_DIRAC_LEGALL5_3:
d->spatial_compose = spatial_compose_dirac53i_dy;
d->vertical_compose_l0 = vertical_compose53iL0;
d->vertical_compose_h0 = vertical_compose_dirac53iH0;
d->horizontal_compose = horizontal_compose_dirac53i;
d->support = 3;
break;
case DWT_DIRAC_DD13_7:
d->spatial_compose = spatial_compose_dd137i_dy;
d->vertical_compose_l0 = vertical_compose_dd137iL0;
d->vertical_compose_h0 = vertical_compose_dd97iH0;
d->horizontal_compose = horizontal_compose_dd137i;
d->support = 7;
break;
case DWT_DIRAC_HAAR0:
case DWT_DIRAC_HAAR1:
d->spatial_compose = spatial_compose_haari_dy;
d->vertical_compose = vertical_compose_haar;
if (type == DWT_DIRAC_HAAR0)
d->horizontal_compose = horizontal_compose_haar0i;
else
d->horizontal_compose = horizontal_compose_haar1i;
d->support = 1;
break;
case DWT_DIRAC_FIDELITY:
d->spatial_compose = spatial_compose_fidelity;
d->vertical_compose_l0 = vertical_compose_fidelityiL0;
d->vertical_compose_h0 = vertical_compose_fidelityiH0;
d->horizontal_compose = horizontal_compose_fidelityi;
break;
case DWT_DIRAC_DAUB9_7:
d->spatial_compose = spatial_compose_daub97i_dy;
d->vertical_compose_l0 = vertical_compose_daub97iL0;
d->vertical_compose_h0 = vertical_compose_daub97iH0;
d->vertical_compose_l1 = vertical_compose_daub97iL1;
d->vertical_compose_h1 = vertical_compose_daub97iH1;
d->horizontal_compose = horizontal_compose_daub97i;
d->support = 5;
break;
default:
av_log(NULL, AV_LOG_ERROR, "Unknown wavelet type %d\n", type);
return -1;
}
/////MMX_DISABLE if (HAVE_MMX) ff_spatial_idwt_init_mmx(d, type);
return 0;
}
void ff_spatial_idwt_slice2(DWTContext *d, int y)
{
int level, support = d->support;
for (level = d->decomposition_count-1; level >= 0; level--) {
int wl = d->width >> level;
int hl = d->height >> level;
int stride_l = d->stride << level;
while (d->cs[level].y <= FFMIN((y>>level)+support, hl))
d->spatial_compose(d, level, wl, hl, stride_l);
}
}
int ff_spatial_idwt2(IDWTELEM *buffer, int width, int height, int stride,
enum dwt_type type, int decomposition_count, IDWTELEM *temp)
{
DWTContext d;
int y;
if (ff_spatial_idwt_init2(&d, buffer, width, height, stride, type, decomposition_count, temp))
return -1;
for (y = 0; y < d.height; y += 4)
ff_spatial_idwt_slice2(&d, y);
return 0;
}
libavcodec/dwt.h
View file @ 5d50fcc5
......@@ -26,7 +26,12 @@
typedef int DWTELEM;
typedef short IDWTELEM;
#define MAX_DWT_SUPPORT 8
#define MAX_DECOMPOSITIONS 8
typedef struct {
IDWTELEM *b[MAX_DWT_SUPPORT];
IDWTELEM *b0;
IDWTELEM *b1;
IDWTELEM *b2;
......@@ -45,13 +50,99 @@ typedef struct slice_buffer_s {
IDWTELEM * base_buffer; ///< Buffer that this structure is caching.
} slice_buffer;
struct DWTContext;
// Possible prototypes for vertical_compose functions
typedef void (*vertical_compose_2tap)(IDWTELEM *b0, IDWTELEM *b1, int width);
typedef void (*vertical_compose_3tap)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width);
typedef void (*vertical_compose_5tap)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width);
typedef void (*vertical_compose_9tap)(IDWTELEM *dst, IDWTELEM *b[8], int width);
typedef struct DWTContext {
IDWTELEM *buffer;
IDWTELEM *temp;
int width;
int height;
int stride;
int decomposition_count;
int support;
void (*spatial_compose)(struct DWTContext *cs, int level, int width, int height, int stride);
void (*vertical_compose_l0)();
void (*vertical_compose_h0)();
void (*vertical_compose_l1)();
void (*vertical_compose_h1)();
void (*vertical_compose)(); ///< one set of lowpass and highpass combined
void (*horizontal_compose)(IDWTELEM *b, IDWTELEM *tmp, int width);
void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
void (*horizontal_compose97i)(IDWTELEM *b, int width);
void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
DWTCompose cs[MAX_DECOMPOSITIONS];
} DWTContext;
#define MAX_DECOMPOSITIONS 8
enum dwt_type {
DWT_SNOW_DAUB9_7,
DWT_SNOW_LEGALL5_3,
DWT_DIRAC_DD9_7,
DWT_DIRAC_LEGALL5_3,
DWT_DIRAC_DD13_7,
DWT_DIRAC_HAAR0,
DWT_DIRAC_HAAR1,
DWT_DIRAC_FIDELITY,
DWT_DIRAC_DAUB9_7,
DWT_NUM_TYPES
};
// -1 if an error occurred, e.g. the dwt_type isn't recognized
int ff_spatial_idwt_init2(DWTContext *d, IDWTELEM *buffer, int width, int height,
int stride, enum dwt_type type, int decomposition_count,
IDWTELEM *temp);
int ff_spatial_idwt2(IDWTELEM *buffer, int width, int height, int stride,
enum dwt_type type, int decomposition_count, IDWTELEM *temp);
void ff_spatial_idwt_slice2(DWTContext *d, int y);
// shared stuff for simd optimiztions
#define COMPOSE_53iL0(b0, b1, b2)\
(b1 - ((b0 + b2 + 2) >> 2))
#define COMPOSE_DIRAC53iH0(b0, b1, b2)\
(b1 + ((b0 + b2 + 1) >> 1))
#define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\
(b2 + ((-b0 + 9*b1 + 9*b3 - b4 + 8) >> 4))
#define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)\
(b2 - ((-b0 + 9*b1 + 9*b3 - b4 + 16) >> 5))
#define COMPOSE_HAARiL0(b0, b1)\
(b0 - ((b1 + 1) >> 1))
#define COMPOSE_HAARiH0(b0, b1)\
(b0 + b1)
#define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
(b4 - ((-8*(b0+b8) + 21*(b1+b7) - 46*(b2+b6) + 161*(b3+b5) + 128) >> 8))
#define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\
(b4 + ((-2*(b0+b8) + 10*(b1+b7) - 25*(b2+b6) + 81*(b3+b5) + 128) >> 8))
#define COMPOSE_DAUB97iL1(b0, b1, b2)\
(b1 - ((1817*(b0 + b2) + 2048) >> 12))
#define COMPOSE_DAUB97iH1(b0, b1, b2)\
(b1 - (( 113*(b0 + b2) + 64) >> 7))
#define COMPOSE_DAUB97iL0(b0, b1, b2)\
(b1 + (( 217*(b0 + b2) + 2048) >> 12))
#define COMPOSE_DAUB97iH0(b0, b1, b2)\
(b1 + ((6497*(b0 + b2) + 2048) >> 12))
#define DWT_97 0
#define DWT_53 1
......
libavcodec/x86/Makefile
View file @ 5d50fcc5
......@@ -9,6 +9,8 @@ YASM-OBJS-FFT-$(HAVE_SSE) += x86/fft_sse.o
YASM-OBJS-$(CONFIG_FFT) += x86/fft_mmx.o \
$(YASM-OBJS-FFT-yes)
YASM-OBJS-$(CONFIG_DWT) += x86/dwt_yasm.o
MMX-OBJS-$(CONFIG_H264DSP) += x86/h264dsp_mmx.o
YASM-OBJS-$(CONFIG_H264DSP) += x86/h264_deblock.o \
x86/h264_deblock_10bit.o \
......@@ -25,6 +27,8 @@ MMX-OBJS-$(CONFIG_RV40_DECODER) += x86/rv40dsp.o \
YASM-OBJS-$(CONFIG_VC1_DECODER) += x86/vc1dsp_yasm.o
#DISABLE_MMX YASM-OBJS-$(CONFIG_DIRAC_DECODER) += x86/diracdsp_mmx.o x86/diracdsp_yasm.o
MMX-OBJS-$(CONFIG_AC3DSP) += x86/ac3dsp_mmx.o
YASM-OBJS-$(CONFIG_AC3DSP) += x86/ac3dsp.o
MMX-OBJS-$(CONFIG_CAVS_DECODER) += x86/cavsdsp_mmx.o
......@@ -38,7 +42,8 @@ YASM-OBJS-$(CONFIG_PRORES_LGPL_DECODER) += x86/proresdsp.o
MMX-OBJS-$(CONFIG_PRORES_LGPL_DECODER) += x86/proresdsp-init.o
YASM-OBJS-$(CONFIG_PRORES_DECODER) += x86/proresdsp.o
MMX-OBJS-$(CONFIG_PRORES_DECODER) += x86/proresdsp-init.o
MMX-OBJS-$(CONFIG_DWT) += x86/snowdsp_mmx.o
MMX-OBJS-$(CONFIG_DWT) += x86/snowdsp_mmx.o \
x86/dwt.o
YASM-OBJS-$(CONFIG_V210_DECODER) += x86/v210.o
MMX-OBJS-$(CONFIG_V210_DECODER) += x86/v210-init.o
MMX-OBJS-$(CONFIG_VC1_DECODER) += x86/vc1dsp_mmx.o
......
libavcodec/x86/diracdsp_mmx.c 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (C) 2010 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "dsputil_mmx.h"
#include "diracdsp_mmx.h"
void ff_put_rect_clamped_mmx(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
void ff_put_rect_clamped_sse2(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
void ff_put_signed_rect_clamped_mmx(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
void ff_put_signed_rect_clamped_sse2(uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height);
#define HPEL_FILTER(MMSIZE, EXT) \
void ff_dirac_hpel_filter_v_ ## EXT(uint8_t *, uint8_t *, int, int);\
void ff_dirac_hpel_filter_h_ ## EXT(uint8_t *, uint8_t *, int);\
\
static void dirac_hpel_filter_ ## EXT(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc,\
uint8_t *src, int stride, int width, int height)\
{\
while( height-- )\
{\
ff_dirac_hpel_filter_v_ ## EXT(dstv-MMSIZE, src-MMSIZE, stride, width+MMSIZE+5);\
ff_dirac_hpel_filter_h_ ## EXT(dsth, src, width);\
ff_dirac_hpel_filter_h_ ## EXT(dstc, dstv, width);\
\
dsth += stride;\
dstv += stride;\
dstc += stride;\
src += stride;\
}\
}
#if !ARCH_X86_64
HPEL_FILTER(8, mmx)
#endif
HPEL_FILTER(16, sse2)
#define PIXFUNC(PFX, IDX, EXT) \
c->PFX ## _dirac_pixels_tab[0][IDX] = ff_ ## PFX ## _dirac_pixels8_ ## EXT; \
c->PFX ## _dirac_pixels_tab[1][IDX] = ff_ ## PFX ## _dirac_pixels16_ ## EXT; \
c->PFX ## _dirac_pixels_tab[2][IDX] = ff_ ## PFX ## _dirac_pixels32_ ## EXT
void ff_diracdsp_init_mmx(DiracDSPContext* c)
{
int mm_flags = av_get_cpu_flags();;
#if HAVE_YASM
c->add_dirac_obmc[0] = ff_add_dirac_obmc8_mmx;
#if !ARCH_X86_64
c->add_dirac_obmc[1] = ff_add_dirac_obmc16_mmx;
c->add_dirac_obmc[2] = ff_add_dirac_obmc32_mmx;
c->dirac_hpel_filter = dirac_hpel_filter_mmx;
c->add_rect_clamped = ff_add_rect_clamped_mmx;
c->put_signed_rect_clamped = ff_put_signed_rect_clamped_mmx;
#endif
#endif
PIXFUNC(put, 0, mmx);
PIXFUNC(avg, 0, mmx);
if (mm_flags & AV_CPU_FLAG_MMX2) {
PIXFUNC(avg, 0, mmx2);
}
if (mm_flags & AV_CPU_FLAG_SSE2) {
#if HAVE_YASM
c->dirac_hpel_filter = dirac_hpel_filter_sse2;
c->add_rect_clamped = ff_add_rect_clamped_sse2;
c->put_signed_rect_clamped = ff_put_signed_rect_clamped_sse2;
c->add_dirac_obmc[1] = ff_add_dirac_obmc16_sse2;
c->add_dirac_obmc[2] = ff_add_dirac_obmc32_sse2;
#endif
c->put_dirac_pixels_tab[1][0] = ff_put_dirac_pixels16_sse2;
c->avg_dirac_pixels_tab[1][0] = ff_avg_dirac_pixels16_sse2;
c->put_dirac_pixels_tab[2][0] = ff_put_dirac_pixels32_sse2;
c->avg_dirac_pixels_tab[2][0] = ff_avg_dirac_pixels32_sse2;
}
}
libavcodec/x86/diracdsp_mmx.h 0 → 100644
View file @ 5d50fcc5
/*
* Copyright (c) 2010 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_X86_DIRACDSP_H
#define AVCODEC_X86_DIRACDSP_H
#include "libavcodec/diracdsp.h"
void ff_diracdsp_init_mmx(DiracDSPContext* c);
DECL_DIRAC_PIXOP(put, mmx);
DECL_DIRAC_PIXOP(avg, mmx);
DECL_DIRAC_PIXOP(avg, mmx2);
void ff_put_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void ff_avg_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void ff_put_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void ff_avg_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h);
void ff_add_rect_clamped_mmx(uint8_t *, const uint16_t *, int, const int16_t *, int, int, int);
void ff_add_rect_clamped_sse2(uint8_t *, const uint16_t *, int, const int16_t *, int, int, int);
void ff_add_dirac_obmc8_mmx(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
void ff_add_dirac_obmc16_mmx(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
void ff_add_dirac_obmc32_mmx(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
void ff_add_dirac_obmc16_sse2(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
void ff_add_dirac_obmc32_sse2(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
#endif
libavcodec/x86/diracdsp_yasm.asm 0 → 100644
View file @ 5d50fcc5
;******************************************************************************
;* Copyright (c) 2010 David Conrad
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* FFmpeg is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with FFmpeg; if not, write to the Free Software
;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "x86inc.asm"
SECTION_RODATA
pw_3: times 8 dw 3
pw_7: times 8 dw 7
pw_16: times 8 dw 16
pw_32: times 8 dw 32
pb_128: times 16 db 128
section .text
%macro UNPACK_ADD 6
mov%5 %1, %3
mov%6 m5, %4
mova m4, %1
mova %2, m5
punpcklbw %1, m7
punpcklbw m5, m7
punpckhbw m4, m7
punpckhbw %2, m7
paddw %1, m5
paddw %2, m4
%endmacro
%macro HPEL_FILTER 1
; dirac_hpel_filter_v_sse2(uint8_t *dst, uint8_t *src, int stride, int width);
cglobal dirac_hpel_filter_v_%1, 4,6,8, dst, src, stride, width, src0, stridex3
mov src0q, srcq
lea stridex3q, [3*strideq]
sub src0q, stridex3q
pxor m7, m7
.loop:
; 7*(src[0] + src[1])
UNPACK_ADD m0, m1, [srcq], [srcq + strideq], a,a
pmullw m0, [pw_7]
pmullw m1, [pw_7]
; 3*( ... + src[-2] + src[3])
UNPACK_ADD m2, m3, [src0q + strideq], [srcq + stridex3q], a,a
paddw m0, m2
paddw m1, m3
pmullw m0, [pw_3]
pmullw m1, [pw_3]
; ... - 7*(src[-1] + src[2])
UNPACK_ADD m2, m3, [src0q + strideq*2], [srcq + strideq*2], a,a
pmullw m2, [pw_7]
pmullw m3, [pw_7]
psubw m0, m2
psubw m1, m3
; ... - (src[-3] + src[4])
UNPACK_ADD m2, m3, [src0q], [srcq + strideq*4], a,a
psubw m0, m2
psubw m1, m3
paddw m0, [pw_16]
paddw m1, [pw_16]
psraw m0, 5
psraw m1, 5
packuswb m0, m1
mova [dstq], m0
add dstq, mmsize
add srcq, mmsize
add src0q, mmsize
sub widthd, mmsize
jg .loop
RET
; dirac_hpel_filter_h_sse2(uint8_t *dst, uint8_t *src, int width);
cglobal dirac_hpel_filter_h_%1, 3,3,8, dst, src, width
dec widthd
pxor m7, m7
and widthd, ~(mmsize-1)
.loop:
; 7*(src[0] + src[1])
UNPACK_ADD m0, m1, [srcq + widthq], [srcq + widthq + 1], a,u
pmullw m0, [pw_7]
pmullw m1, [pw_7]
; 3*( ... + src[-2] + src[3])
UNPACK_ADD m2, m3, [srcq + widthq - 2], [srcq + widthq + 3], u,u
paddw m0, m2
paddw m1, m3
pmullw m0, [pw_3]
pmullw m1, [pw_3]
; ... - 7*(src[-1] + src[2])
UNPACK_ADD m2, m3, [srcq + widthq - 1], [srcq + widthq + 2], u,u
pmullw m2, [pw_7]
pmullw m3, [pw_7]
psubw m0, m2
psubw m1, m3
; ... - (src[-3] + src[4])
UNPACK_ADD m2, m3, [srcq + widthq - 3], [srcq + widthq + 4], u,u
psubw m0, m2
psubw m1, m3
paddw m0, [pw_16]
paddw m1, [pw_16]
psraw m0, 5
psraw m1, 5
packuswb m0, m1
mova [dstq + widthq], m0
sub widthd, mmsize
jge .loop
RET
%endmacro
%macro PUT_RECT 1
; void put_rect_clamped(uint8_t *dst, int dst_stride, int16_t *src, int src_stride, int width, int height)
cglobal put_signed_rect_clamped_%1, 5,7,3, dst, dst_stride, src, src_stride, w, dst2, src2
mova m0, [pb_128]
add wd, (mmsize-1)
and wd, ~(mmsize-1)
%ifdef ARCH_X86_64
mov r10d, r5m
mov r11d, wd
%define wspill r11d
%define hd r10d
%else
mov r4m, wd
%define wspill r4m
%define hd r5mp
%endif
.loopy
lea src2q, [srcq+src_strideq*2]
lea dst2q, [dstq+dst_strideq]
.loopx:
sub wd, mmsize
mova m1, [srcq +2*wq]
mova m2, [src2q+2*wq]
packsswb m1, [srcq +2*wq+mmsize]
packsswb m2, [src2q+2*wq+mmsize]
paddb m1, m0
paddb m2, m0
mova [dstq +wq], m1
mova [dst2q+wq], m2
jg .loopx
lea srcq, [srcq+src_strideq*4]
lea dstq, [dstq+dst_strideq*2]
sub hd, 2
mov wd, wspill
jg .loopy
RET
%endm
%macro ADD_RECT 1
; void add_rect_clamped(uint8_t *dst, uint16_t *src, int stride, int16_t *idwt, int idwt_stride, int width, int height)
cglobal add_rect_clamped_%1, 7,7,3, dst, src, stride, idwt, idwt_stride, w, h
mova m0, [pw_32]
add wd, (mmsize-1)
and wd, ~(mmsize-1)
%ifdef ARCH_X86_64
mov r11d, wd
%define wspill r11d
%else
mov r5m, wd
%define wspill r5m
%endif
.loop:
sub wd, mmsize
movu m1, [srcq +2*wq] ; FIXME: ensure alignment
paddw m1, m0
psraw m1, 6
movu m2, [srcq +2*wq+mmsize] ; FIXME: ensure alignment
paddw m2, m0
psraw m2, 6
paddw m1, [idwtq+2*wq]
paddw m2, [idwtq+2*wq+mmsize]
packuswb m1, m2
mova [dstq +wq], m1
jg .loop
lea srcq, [srcq + 2*strideq]
add dstq, strideq
lea idwtq, [idwtq+ 2*idwt_strideq]
sub hd, 1
mov wd, wspill
jg .loop
RET
%endm
%macro ADD_OBMC 2
; void add_obmc(uint16_t *dst, uint8_t *src, int stride, uint8_t *obmc_weight, int yblen)
cglobal add_dirac_obmc%1_%2, 6,6,5, dst, src, stride, obmc, yblen
pxor m4, m4
.loop:
%assign i 0
%rep %1 / mmsize
mova m0, [srcq+i]
mova m1, m0
punpcklbw m0, m4
punpckhbw m1, m4
mova m2, [obmcq+i]
mova m3, m2
punpcklbw m2, m4
punpckhbw m3, m4
pmullw m0, m2
pmullw m1, m3
movu m2, [dstq+2*i]
movu m3, [dstq+2*i+mmsize]
paddw m0, m2
paddw m1, m3
movu [dstq+2*i], m0
movu [dstq+2*i+mmsize], m1
%assign i i+mmsize
%endrep
lea srcq, [srcq+strideq]
lea dstq, [dstq+2*strideq]
add obmcq, 32
sub yblend, 1
jg .loop
RET
%endm
INIT_MMX
%ifndef ARCH_X86_64
PUT_RECT mmx
ADD_RECT mmx
HPEL_FILTER mmx
ADD_OBMC 32, mmx
ADD_OBMC 16, mmx
%endif
ADD_OBMC 8, mmx
INIT_XMM
PUT_RECT sse2
ADD_RECT sse2
HPEL_FILTER sse2
ADD_OBMC 32, sse2
ADD_OBMC 16, sse2
libavcodec/x86/dsputil_mmx.c
View file @ 5d50fcc5
......@@ -31,6 +31,7 @@
#include "libavcodec/ac3dec.h"
#include "dsputil_mmx.h"
#include "idct_xvid.h"
#include "diracdsp_mmx.h"
//#undef NDEBUG
//#include <assert.h>
......@@ -1902,6 +1903,46 @@ static void put_vp_no_rnd_pixels16_l2_mmx(uint8_t *dst, const uint8_t *a, const
put_vp_no_rnd_pixels8_l2_mmx(dst+8, a+8, b+8, stride, h);
}
#if CONFIG_DIRAC_DECODER
#define DIRAC_PIXOP(OPNAME, EXT)\
void ff_ ## OPNAME ## _dirac_pixels8_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels8_ ## EXT(dst, src[0], stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels16_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_ ## EXT(dst, src[0], stride, h);\
}\
void ff_ ## OPNAME ## _dirac_pixels32_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)\
{\
OPNAME ## _pixels16_ ## EXT(dst , src[0] , stride, h);\
OPNAME ## _pixels16_ ## EXT(dst+16, src[0]+16, stride, h);\
}
DIRAC_PIXOP(put, mmx)
DIRAC_PIXOP(avg, mmx)
DIRAC_PIXOP(avg, mmx2)
void ff_put_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
{
put_pixels16_sse2(dst, src[0], stride, h);
}
void ff_avg_dirac_pixels16_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
{
avg_pixels16_sse2(dst, src[0], stride, h);
}
void ff_put_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
{
put_pixels16_sse2(dst , src[0] , stride, h);
put_pixels16_sse2(dst+16, src[0]+16, stride, h);
}
void ff_avg_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride, int h)
{
avg_pixels16_sse2(dst , src[0] , stride, h);
avg_pixels16_sse2(dst+16, src[0]+16, stride, h);
}
#endif
/* XXX: those functions should be suppressed ASAP when all IDCTs are
converted */
#if CONFIG_GPL
......
libavcodec/x86/dwt.c 0 → 100644
View file @ 5d50fcc5
/*
* MMX optimized discrete wavelet transform
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2010 David Conrad
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/x86_cpu.h"
#include "dsputil_mmx.h"
#include "dwt.h"
#define COMPOSE_VERTICAL(ext, align) \
void ff_vertical_compose53iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width); \
void ff_vertical_compose_dirac53iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width); \
void ff_vertical_compose_dd137iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width); \
void ff_vertical_compose_dd97iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, int width); \
void ff_vertical_compose_haar##ext(IDWTELEM *b0, IDWTELEM *b1, int width); \
\
static void vertical_compose53iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) \
{ \
int i, width_align = width&~(align-1); \
\
for(i=width_align; i<width; i++) \
b1[i] = COMPOSE_53iL0(b0[i], b1[i], b2[i]); \
\
ff_vertical_compose53iL0##ext(b0, b1, b2, width_align); \
} \
\
static void vertical_compose_dirac53iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width) \
{ \
int i, width_align = width&~(align-1); \
\
for(i=width_align; i<width; i++) \
b1[i] = COMPOSE_DIRAC53iH0(b0[i], b1[i], b2[i]); \
\
ff_vertical_compose_dirac53iH0##ext(b0, b1, b2, width_align); \
} \
\
static void vertical_compose_dd137iL0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, \
IDWTELEM *b3, IDWTELEM *b4, int width) \
{ \
int i, width_align = width&~(align-1); \
\
for(i=width_align; i<width; i++) \
b2[i] = COMPOSE_DD137iL0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
\
ff_vertical_compose_dd137iL0##ext(b0, b1, b2, b3, b4, width_align); \
} \
\
static void vertical_compose_dd97iH0##ext(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, \
IDWTELEM *b3, IDWTELEM *b4, int width) \
{ \
int i, width_align = width&~(align-1); \
\
for(i=width_align; i<width; i++) \
b2[i] = COMPOSE_DD97iH0(b0[i], b1[i], b2[i], b3[i], b4[i]); \
\
ff_vertical_compose_dd97iH0##ext(b0, b1, b2, b3, b4, width_align); \
} \
static void vertical_compose_haar##ext(IDWTELEM *b0, IDWTELEM *b1, int width) \
{ \
int i, width_align = width&~(align-1); \
\
for(i=width_align; i<width; i++) { \
b0[i] = COMPOSE_HAARiL0(b0[i], b1[i]); \
b1[i] = COMPOSE_HAARiH0(b1[i], b0[i]); \
} \
\
ff_vertical_compose_haar##ext(b0, b1, width_align); \
} \
\
#if HAVE_YASM
#if !ARCH_X86_64
COMPOSE_VERTICAL(_mmx, 4)
#endif
COMPOSE_VERTICAL(_sse2, 8)
#endif
void ff_horizontal_compose_dd97i_ssse3(IDWTELEM *b, IDWTELEM *tmp, int w);
void ff_horizontal_compose_haar0i_mmx(IDWTELEM *b, IDWTELEM *tmp, int w);
void ff_horizontal_compose_haar1i_mmx(IDWTELEM *b, IDWTELEM *tmp, int w);
void ff_horizontal_compose_haar0i_sse2(IDWTELEM *b, IDWTELEM *tmp, int w);
void ff_horizontal_compose_haar1i_sse2(IDWTELEM *b, IDWTELEM *tmp, int w);
void ff_horizontal_compose_dd97i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x)
{
for (; x < w2; x++) {
b[2*x ] = (tmp[x] + 1)>>1;
b[2*x+1] = (COMPOSE_DD97iH0(tmp[x-1], tmp[x], b[x+w2], tmp[x+1], tmp[x+2]) + 1)>>1;
}
}
void ff_horizontal_compose_haar0i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x)
{
for (; x < w2; x++) {
b[2*x ] = tmp[x];
b[2*x+1] = COMPOSE_HAARiH0(b[x+w2], tmp[x]);
}
}
void ff_horizontal_compose_haar1i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x)
{
for (; x < w2; x++) {
b[2*x ] = (tmp[x] + 1)>>1;
b[2*x+1] = (COMPOSE_HAARiH0(b[x+w2], tmp[x]) + 1)>>1;
}
}
void ff_spatial_idwt_init_mmx(DWTContext *d, enum dwt_type type)
{
#if HAVE_YASM
int mm_flags = av_get_cpu_flags();;
#if !ARCH_X86_64
if (!(mm_flags & AV_CPU_FLAG_MMX))
return;
switch (type) {
case DWT_DIRAC_DD9_7:
d->vertical_compose_l0 = vertical_compose53iL0_mmx;
d->vertical_compose_h0 = vertical_compose_dd97iH0_mmx;
break;
case DWT_DIRAC_LEGALL5_3:
d->vertical_compose_l0 = vertical_compose53iL0_mmx;
d->vertical_compose_h0 = vertical_compose_dirac53iH0_mmx;
break;
case DWT_DIRAC_DD13_7:
d->vertical_compose_l0 = vertical_compose_dd137iL0_mmx;
d->vertical_compose_h0 = vertical_compose_dd97iH0_mmx;
break;
case DWT_DIRAC_HAAR0:
d->vertical_compose = vertical_compose_haar_mmx;
d->horizontal_compose = ff_horizontal_compose_haar0i_mmx;
break;
case DWT_DIRAC_HAAR1:
d->vertical_compose = vertical_compose_haar_mmx;
d->horizontal_compose = ff_horizontal_compose_haar1i_mmx;
break;
}
#endif
if (!(mm_flags & AV_CPU_FLAG_SSE2))
return;
switch (type) {
case DWT_DIRAC_DD9_7:
d->vertical_compose_l0 = vertical_compose53iL0_sse2;
d->vertical_compose_h0 = vertical_compose_dd97iH0_sse2;
break;
case DWT_DIRAC_LEGALL5_3:
d->vertical_compose_l0 = vertical_compose53iL0_sse2;
d->vertical_compose_h0 = vertical_compose_dirac53iH0_sse2;
break;
case DWT_DIRAC_DD13_7:
d->vertical_compose_l0 = vertical_compose_dd137iL0_sse2;
d->vertical_compose_h0 = vertical_compose_dd97iH0_sse2;
break;
case DWT_DIRAC_HAAR0:
d->vertical_compose = vertical_compose_haar_sse2;
d->horizontal_compose = ff_horizontal_compose_haar0i_sse2;
break;
case DWT_DIRAC_HAAR1:
d->vertical_compose = vertical_compose_haar_sse2;
d->horizontal_compose = ff_horizontal_compose_haar1i_sse2;
break;
}
if (!(mm_flags & AV_CPU_FLAG_SSSE3))
return;
switch (type) {
case DWT_DIRAC_DD9_7:
d->horizontal_compose = ff_horizontal_compose_dd97i_ssse3;
break;
}
#endif // HAVE_YASM
}
libavcodec/x86/dwt.h 0 → 100644
View file @ 5d50fcc5
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_X86_DWT_H
#define AVCODEC_X86_DWT_H
#include "libavcodec/dwt.h"
void ff_horizontal_compose_dd97i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x);
void ff_horizontal_compose_haar1i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x);
void ff_horizontal_compose_haar0i_end_c(IDWTELEM *b, IDWTELEM *tmp, int w2, int x);
void ff_spatial_idwt_init_mmx(DWTContext *d, enum dwt_type type);
#endif
libavcodec/x86/dwt_yasm.asm 0 → 100644
View file @ 5d50fcc5
;******************************************************************************
;* MMX optimized discrete wavelet trasnform
;* Copyright (c) 2010 David Conrad
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* FFmpeg is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with FFmpeg; if not, write to the Free Software
;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "x86inc.asm"
cextern horizontal_compose_dd97i_end_c
cextern horizontal_compose_haar0i_end_c
cextern horizontal_compose_haar1i_end_c
SECTION_RODATA
pw_1: times 8 dw 1
pw_2: times 8 dw 2
pw_8: times 8 dw 8
pw_16: times 8 dw 16
pw_1991: times 4 dw 9,-1
section .text
; %1 -= (%2 + %3 + 2)>>2 %4 is pw_2
%macro COMPOSE_53iL0 4
paddw %2, %3
paddw %2, %4
psraw %2, 2
psubw %1, %2
%endm
; m1 = %1 + (-m0 + 9*m1 + 9*%2 -%3 + 8)>>4
; if %4 is supplied, %1 is loaded unaligned from there
; m2: clobbered m3: pw_8 m4: pw_1991
%macro COMPOSE_DD97iH0 3-4
paddw m0, %3
paddw m1, %2
psubw m0, m3
mova m2, m1
punpcklwd m1, m0
punpckhwd m2, m0
pmaddwd m1, m4
pmaddwd m2, m4
%if %0 > 3
movu %1, %4
%endif
psrad m1, 4
psrad m2, 4
packssdw m1, m2
paddw m1, %1
%endm
%macro COMPOSE_VERTICAL 1
; void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
; int width)
cglobal vertical_compose53iL0_%1, 4,4,1, b0, b1, b2, width
mova m2, [pw_2]
.loop:
sub widthd, mmsize/2
mova m1, [b0q+2*widthq]
mova m0, [b1q+2*widthq]
COMPOSE_53iL0 m0, m1, [b2q+2*widthq], m2
mova [b1q+2*widthq], m0
jg .loop
REP_RET
; void vertical_compose_dirac53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
; int width)
cglobal vertical_compose_dirac53iH0_%1, 4,4,1, b0, b1, b2, width
mova m1, [pw_1]
.loop:
sub widthd, mmsize/2
mova m0, [b0q+2*widthq]
paddw m0, [b2q+2*widthq]
paddw m0, m1
psraw m0, 1
paddw m0, [b1q+2*widthq]
mova [b1q+2*widthq], m0
jg .loop
REP_RET
; void vertical_compose_dd97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
; IDWTELEM *b3, IDWTELEM *b4, int width)
cglobal vertical_compose_dd97iH0_%1, 6,6,5, b0, b1, b2, b3, b4, width
mova m3, [pw_8]
mova m4, [pw_1991]
.loop:
sub widthd, mmsize/2
mova m0, [b0q+2*widthq]
mova m1, [b1q+2*widthq]
COMPOSE_DD97iH0 [b2q+2*widthq], [b3q+2*widthq], [b4q+2*widthq]
mova [b2q+2*widthq], m1
jg .loop
REP_RET
; void vertical_compose_dd137iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
; IDWTELEM *b3, IDWTELEM *b4, int width)
cglobal vertical_compose_dd137iL0_%1, 6,6,6, b0, b1, b2, b3, b4, width
mova m3, [pw_16]
mova m4, [pw_1991]
.loop:
sub widthd, mmsize/2
mova m0, [b0q+2*widthq]
mova m1, [b1q+2*widthq]
mova m5, [b2q+2*widthq]
paddw m0, [b4q+2*widthq]
paddw m1, [b3q+2*widthq]
psubw m0, m3
mova m2, m1
punpcklwd m1, m0
punpckhwd m2, m0
pmaddwd m1, m4
pmaddwd m2, m4
psrad m1, 5
psrad m2, 5
packssdw m1, m2
psubw m5, m1
mova [b2q+2*widthq], m5
jg .loop
REP_RET
; void vertical_compose_haar(IDWTELEM *b0, IDWTELEM *b1, int width)
cglobal vertical_compose_haar_%1, 3,4,3, b0, b1, width
mova m3, [pw_1]
.loop:
sub widthd, mmsize/2
mova m1, [b1q+2*widthq]
mova m0, [b0q+2*widthq]
mova m2, m1
paddw m1, m3
psraw m1, 1
psubw m0, m1
mova [b0q+2*widthq], m0
paddw m2, m0
mova [b1q+2*widthq], m2
jg .loop
REP_RET
%endmacro
; extend the left and right edges of the tmp array by %1 and %2 respectively
%macro EDGE_EXTENSION 3
mov %3, [tmpq]
%assign %%i 1
%rep %1
mov [tmpq-2*%%i], %3
%assign %%i %%i+1
%endrep
mov %3, [tmpq+2*w2q-2]
%assign %%i 0
%rep %2
mov [tmpq+2*w2q+2*%%i], %3
%assign %%i %%i+1
%endrep
%endmacro
; On x86-64 this does a tail call to the C function to do the final bit
; x86-32 doesn't because isn't enough stack space for the additional argument x
%macro END_HORIZONTAL 1
shr wd, 1
%ifdef ARCH_X86_64
RET ;This RET was a CLEANUP call
jmp %1
%else
push xd
push wd
push tmpd
push bd
call %1
add esp, 16
RET
%endif
%endmacro
%macro HAAR_HORIZONTAL 2
; void horizontal_compose_haari(IDWTELEM *b, IDWTELEM *tmp, int width)
cglobal horizontal_compose_haar%2i_%1, 3,6,4, b, tmp, w, x, w2, b_w2
mov w2d, wd
xor xd, xd
shr w2d, 1
lea b_w2q, [bq+wq]
mova m3, [pw_1]
.lowpass_loop:
movu m1, [b_w2q + 2*xq]
mova m0, [bq + 2*xq]
paddw m1, m3
psraw m1, 1
psubw m0, m1
mova [tmpq + 2*xq], m0
add xd, mmsize/2
cmp xd, w2d
jl .lowpass_loop
xor xd, xd
and w2d, ~(mmsize/2 - 1)
cmp w2d, mmsize/2
jl .end
.highpass_loop:
mova m1, [b_w2q + 2*xq]
mova m0, [tmpq + 2*xq]
paddw m1, m0
; shift and interleave
%if %2 == 1
paddw m0, m3
paddw m1, m3
psraw m0, 1
psraw m1, 1
%endif
mova m2, m0
punpcklwd m0, m1
punpckhwd m2, m1
mova [bq+4*xq], m0
mova [bq+4*xq+mmsize], m2
add xd, mmsize/2
cmp xd, w2d
jl .highpass_loop
.end:
END_HORIZONTAL horizontal_compose_haar%2i_end_c
%endmacro
INIT_XMM
; void horizontal_compose_dd97i(IDWTELEM *b, IDWTELEM *tmp, int width)
cglobal horizontal_compose_dd97i_ssse3, 3,6,8, b, tmp, w, x, w2, b_w2
mov w2d, wd
xor xd, xd
shr w2d, 1
lea b_w2q, [bq+wq]
movu m4, [bq+wq]
mova m7, [pw_2]
pslldq m4, 14
.lowpass_loop:
movu m1, [b_w2q + 2*xq]
mova m0, [bq + 2*xq]
mova m2, m1
palignr m1, m4, 14
mova m4, m2
COMPOSE_53iL0 m0, m1, m2, m7
mova [tmpq + 2*xq], m0
add xd, mmsize/2
cmp xd, w2d
jl .lowpass_loop
EDGE_EXTENSION 1, 2, xw
; leave the last up to 7 (sse) or 3 (mmx) values for C
xor xd, xd
and w2d, ~(mmsize/2 - 1)
cmp w2d, mmsize/2
jl .end
mova m7, [tmpq-mmsize]
mova m0, [tmpq]
mova m5, [pw_1]
mova m3, [pw_8]
mova m4, [pw_1991]
.highpass_loop:
mova m6, m0
palignr m0, m7, 14
mova m7, [tmpq + 2*xq + 16]
mova m1, m7
mova m2, m7
palignr m1, m6, 2
palignr m2, m6, 4
COMPOSE_DD97iH0 m0, m6, m2, [b_w2q + 2*xq]
mova m0, m7
mova m7, m6
; shift and interleave
paddw m6, m5
paddw m1, m5
psraw m6, 1
psraw m1, 1
mova m2, m6
punpcklwd m6, m1
punpckhwd m2, m1
mova [bq+4*xq], m6
mova [bq+4*xq+mmsize], m2
add xd, mmsize/2
cmp xd, w2d
jl .highpass_loop
.end:
END_HORIZONTAL horizontal_compose_dd97i_end_c
%ifndef ARCH_X86_64
INIT_MMX
COMPOSE_VERTICAL mmx
HAAR_HORIZONTAL mmx, 0
HAAR_HORIZONTAL mmx, 1
%endif
;;INIT_XMM
INIT_XMM
COMPOSE_VERTICAL sse2
HAAR_HORIZONTAL sse2, 0
HAAR_HORIZONTAL sse2, 1
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