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ffmpeg.wasm-core
Commit 3b636f21 authored by David Conrad's avatar David Conrad Committed by Ronald S. Bultje
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Native VP8 decoder. 

Patch by David Conrad <lessen42 gmail com> and myself.

Originally committed as revision 23719 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent c6ef6e14
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Showing with 2699 additions and 4 deletions
doc/general.texi
View file @ 3b636f21
...@@ -441,8 +441,8 @@ following image formats are supported: ...@@ -441,8 +441,8 @@ following image formats are supported:
@tab fourcc: VP50 @tab fourcc: VP50
@item On2 VP6 @tab @tab X @item On2 VP6 @tab @tab X
@tab fourcc: VP60,VP61,VP62 @tab fourcc: VP60,VP61,VP62
@item VP8 @tab X @tab X @item VP8 @tab E @tab X
@tab fourcc: VP80, de/encoding supported through external library libvpx @tab fourcc: VP80, encoding supported through external library libvpx
@item planar RGB @tab @tab X @item planar RGB @tab @tab X
@tab fourcc: 8BPS @tab fourcc: 8BPS
@item Q-team QPEG @tab @tab X @item Q-team QPEG @tab @tab X
......
libavcodec/Makefile
View file @ 3b636f21
...@@ -375,6 +375,8 @@ OBJS-$(CONFIG_VP5_DECODER) += vp5.o vp56.o vp56data.o vp56dsp.o \ ...@@ -375,6 +375,8 @@ OBJS-$(CONFIG_VP5_DECODER) += vp5.o vp56.o vp56data.o vp56dsp.o \
vp3dsp.o vp3dsp.o
OBJS-$(CONFIG_VP6_DECODER) += vp6.o vp56.o vp56data.o vp56dsp.o \ OBJS-$(CONFIG_VP6_DECODER) += vp6.o vp56.o vp56data.o vp56dsp.o \
vp3dsp.o vp6dsp.o huffman.o vp3dsp.o vp6dsp.o huffman.o
OBJS-$(CONFIG_VP8_DECODER) += vp8.o vp8dsp.o vp56.o vp56data.o \
h264pred.o
OBJS-$(CONFIG_VQA_DECODER) += vqavideo.o OBJS-$(CONFIG_VQA_DECODER) += vqavideo.o
OBJS-$(CONFIG_WAVPACK_DECODER) += wavpack.o OBJS-$(CONFIG_WAVPACK_DECODER) += wavpack.o
OBJS-$(CONFIG_WMAPRO_DECODER) += wmaprodec.o wma.o OBJS-$(CONFIG_WMAPRO_DECODER) += wmaprodec.o wma.o
......
libavcodec/allcodecs.c
View file @ 3b636f21
...@@ -201,6 +201,7 @@ void avcodec_register_all(void) ...@@ -201,6 +201,7 @@ void avcodec_register_all(void)
REGISTER_DECODER (VP6, vp6); REGISTER_DECODER (VP6, vp6);
REGISTER_DECODER (VP6A, vp6a); REGISTER_DECODER (VP6A, vp6a);
REGISTER_DECODER (VP6F, vp6f); REGISTER_DECODER (VP6F, vp6f);
REGISTER_DECODER (VP8, vp8);
REGISTER_DECODER (VQA, vqa); REGISTER_DECODER (VQA, vqa);
REGISTER_ENCDEC (WMV1, wmv1); REGISTER_ENCDEC (WMV1, wmv1);
REGISTER_ENCDEC (WMV2, wmv2); REGISTER_ENCDEC (WMV2, wmv2);
......
libavcodec/avcodec.h
View file @ 3b636f21
...@@ -30,8 +30,8 @@ ...@@ -30,8 +30,8 @@
#include "libavutil/avutil.h" #include "libavutil/avutil.h"
#define LIBAVCODEC_VERSION_MAJOR 52 #define LIBAVCODEC_VERSION_MAJOR 52
#define LIBAVCODEC_VERSION_MINOR 77 #define LIBAVCODEC_VERSION_MINOR 78
#define LIBAVCODEC_VERSION_MICRO 1 #define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \ LIBAVCODEC_VERSION_MINOR, \
......
libavcodec/dsputil.c
View file @ 3b636f21
...@@ -39,6 +39,7 @@ ...@@ -39,6 +39,7 @@
#include "ac3dec.h" #include "ac3dec.h"
#include "vorbis.h" #include "vorbis.h"
#include "png.h" #include "png.h"
#include "vp8dsp.h"
uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, }; uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP] = {0, };
uint32_t ff_squareTbl[512] = {0, }; uint32_t ff_squareTbl[512] = {0, };
...@@ -2656,6 +2657,18 @@ static void avg_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride){ ...@@ -2656,6 +2657,18 @@ static void avg_rv40_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride){
} }
#endif /* CONFIG_RV40_DECODER */ #endif /* CONFIG_RV40_DECODER */
#if CONFIG_VP8_DECODER
void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y) {
put_pixels16_c(dst, src, stride, h);
}
void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y) {
put_pixels8_c(dst, src, stride, h);
}
void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y) {
put_pixels4_c(dst, src, stride, h);
}
#endif
static void wmv2_mspel8_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int w){ 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; uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
int i; int i;
......
libavcodec/vp56.h
View file @ 3b636f21
...@@ -237,6 +237,12 @@ static inline int vp56_rac_get(VP56RangeCoder *c) ...@@ -237,6 +237,12 @@ static inline int vp56_rac_get(VP56RangeCoder *c)
return bit; return bit;
} }
// rounding is different than vp56_rac_get, is vp56_rac_get wrong?
static inline int vp8_rac_get(VP56RangeCoder *c)
{
return vp56_rac_get_prob(c, 128);
}
static inline int vp56_rac_gets(VP56RangeCoder *c, int bits) static inline int vp56_rac_gets(VP56RangeCoder *c, int bits)
{ {
int value = 0; int value = 0;
...@@ -248,12 +254,46 @@ static inline int vp56_rac_gets(VP56RangeCoder *c, int bits) ...@@ -248,12 +254,46 @@ static inline int vp56_rac_gets(VP56RangeCoder *c, int bits)
return value; return value;
} }
static inline int vp8_rac_get_uint(VP56RangeCoder *c, int bits)
{
int value = 0;
while (bits--) {
value = (value << 1) | vp8_rac_get(c);
}
return value;
}
// fixme: add 1 bit to all the calls to this?
static inline int vp8_rac_get_sint(VP56RangeCoder *c, int bits)
{
int v;
if (!vp8_rac_get(c))
return 0;
v = vp8_rac_get_uint(c, bits);
if (vp8_rac_get(c))
v = -v;
return v;
}
// P(7)
static inline int vp56_rac_gets_nn(VP56RangeCoder *c, int bits) static inline int vp56_rac_gets_nn(VP56RangeCoder *c, int bits)
{ {
int v = vp56_rac_gets(c, 7) << 1; int v = vp56_rac_gets(c, 7) << 1;
return v + !v; return v + !v;
} }
static inline int vp8_rac_get_nn(VP56RangeCoder *c)
{
int v = vp8_rac_get_uint(c, 7) << 1;
return v + !v;
}
static inline int vp56_rac_get_tree(VP56RangeCoder *c, static inline int vp56_rac_get_tree(VP56RangeCoder *c,
const VP56Tree *tree, const VP56Tree *tree,
const uint8_t *probs) const uint8_t *probs)
...@@ -267,4 +307,39 @@ static inline int vp56_rac_get_tree(VP56RangeCoder *c, ...@@ -267,4 +307,39 @@ static inline int vp56_rac_get_tree(VP56RangeCoder *c,
return -tree->val; return -tree->val;
} }
/**
* This is identical to vp8_rac_get_tree except for the possibility of starting
* on a node other than the root node, needed for coeff decode where this is
* used to save a bit after a 0 token (by disallowing EOB to immediately follow.)
*/
static inline int vp8_rac_get_tree_with_offset(VP56RangeCoder *c, const int8_t (*tree)[2],
const uint8_t *probs, int i)
{
do {
i = tree[i][vp56_rac_get_prob(c, probs[i])];
} while (i > 0);
return -i;
}
// how probabilities are associated with decisions is different I think
// well, the new scheme fits in the old but this way has one fewer branches per decision
static inline int vp8_rac_get_tree(VP56RangeCoder *c, const int8_t (*tree)[2],
const uint8_t *probs)
{
return vp8_rac_get_tree_with_offset(c, tree, probs, 0);
}
// DCTextra
static inline int vp8_rac_get_coeff(VP56RangeCoder *c, const uint8_t *prob)
{
int v = 0;
do {
v = (v<<1) + vp56_rac_get_prob(c, *prob++);
} while (*prob);
return v;
}
#endif /* AVCODEC_VP56_H */ #endif /* AVCODEC_VP56_H */
libavcodec/vp8.c 0 → 100644
View file @ 3b636f21
/**
* VP8 compatible video decoder
*
* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
*
* 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 "avcodec.h"
#include "vp56.h"
#include "vp8data.h"
#include "vp8dsp.h"
#include "h264pred.h"
#include "rectangle.h"
typedef struct {
uint8_t segment;
uint8_t skip;
// todo: make it possible to check for at least (i4x4 or split_mv)
// in one op. are others needed?
uint8_t mode;
uint8_t ref_frame;
uint8_t partitioning;
VP56mv mv;
VP56mv bmv[16];
} VP8Macroblock;
typedef struct {
AVCodecContext *avctx;
DSPContext dsp;
VP8DSPContext vp8dsp;
H264PredContext hpc;
AVFrame frames[4];
AVFrame *framep[4];
uint8_t *edge_emu_buffer;
VP56RangeCoder c; ///< header context, includes mb modes and motion vectors
int profile;
int mb_width; /* number of horizontal MB */
int mb_height; /* number of vertical MB */
int linesize;
int uvlinesize;
int keyframe;
int invisible;
int update_last; ///< update VP56_FRAME_PREVIOUS with the current one
int update_golden; ///< VP56_FRAME_NONE if not updated, or which frame to copy if so
int update_altref;
/**
* If this flag is not set, all the probability updates
* are discarded after this frame is decoded.
*/
int update_probabilities;
/**
* All coefficients are contained in separate arith coding contexts.
* There can be 1, 2, 4, or 8 of these after the header context.
*/
int num_coeff_partitions;
VP56RangeCoder coeff_partition[8];
VP8Macroblock *macroblocks;
VP8Macroblock *macroblocks_base;
int mb_stride;
uint8_t *intra4x4_pred_mode;
uint8_t *intra4x4_pred_mode_base;
int b4_stride;
/**
* For coeff decode, we need to know whether the above block had non-zero
* coefficients. This means for each macroblock, we need data for 4 luma
* blocks, 2 u blocks, 2 v blocks, and the luma dc block, for a total of 9
* per macroblock. We keep the last row in top_nnz.
*/
uint8_t (*top_nnz)[9];
DECLARE_ALIGNED(8, uint8_t, left_nnz)[9];
/**
* This is the index plus one of the last non-zero coeff
* for each of the blocks in the current macroblock.
* So, 0 -> no coeffs
* 1 -> dc-only (special transform)
* 2+-> full transform
*/
DECLARE_ALIGNED(16, uint8_t, non_zero_count_cache)[6][4];
DECLARE_ALIGNED(16, DCTELEM, block)[6][4][16];
int chroma_pred_mode; ///< 8x8c pred mode of the current macroblock
int mbskip_enabled;
int sign_bias[4]; ///< one state [0, 1] per ref frame type
/**
* Base parameters for segmentation, i.e. per-macroblock parameters.
* These must be kept unchanged even if segmentation is not used for
* a frame, since the values persist between interframes.
*/
struct {
int enabled;
int absolute_vals;
int update_map;
int8_t base_quant[4];
int8_t filter_level[4]; ///< base loop filter level
} segmentation;
/**
* Macroblocks can have one of 4 different quants in a frame when
* segmentation is enabled.
* If segmentation is disabled, only the first segment's values are used.
*/
struct {
// [0] - DC qmul [1] - AC qmul
int16_t luma_qmul[2];
int16_t luma_dc_qmul[2]; ///< luma dc-only block quant
int16_t chroma_qmul[2];
} qmat[4];
struct {
int simple;
int level;
int sharpness;
} filter;
struct {
int enabled; ///< whether each mb can have a different strength based on mode/ref
/**
* filter strength adjustment for the following macroblock modes:
* [0] - i4x4
* [1] - zero mv
* [2] - inter modes except for zero or split mv
* [3] - split mv
* i16x16 modes never have any adjustment
*/
int8_t mode[4];
/**
* filter strength adjustment for macroblocks that reference:
* [0] - intra / VP56_FRAME_CURRENT
* [1] - VP56_FRAME_PREVIOUS
* [2] - VP56_FRAME_GOLDEN
* [3] - altref / VP56_FRAME_GOLDEN2
*/
int8_t ref[4];
} lf_delta;
/**
* These are all of the updatable probabilities for binary decisions.
* They are only implictly reset on keyframes, making it quite likely
* for an interframe to desync if a prior frame's header was corrupt
* or missing outright!
*/
struct {
uint8_t segmentid[3];
uint8_t mbskip;
uint8_t intra;
uint8_t last;
uint8_t golden;
uint8_t pred16x16[4];
uint8_t pred8x8c[3];
uint8_t token[4][8][3][NUM_DCT_TOKENS-1];
uint8_t mvc[2][19];
} prob[2];
} VP8Context;
#define RL24(p) (AV_RL16(p) + ((p)[2] << 16))
static void vp8_decode_flush(AVCodecContext *avctx)
{
VP8Context *s = avctx->priv_data;
int i;
for (i = 0; i < 4; i++)
if (s->frames[i].data[0])
avctx->release_buffer(avctx, &s->frames[i]);
memset(s->framep, 0, sizeof(s->framep));
av_freep(&s->macroblocks_base);
av_freep(&s->intra4x4_pred_mode_base);
av_freep(&s->top_nnz);
av_freep(&s->edge_emu_buffer);
s->macroblocks = NULL;
s->intra4x4_pred_mode = NULL;
}
static int update_dimensions(VP8Context *s, int width, int height)
{
int i;
if (avcodec_check_dimensions(s->avctx, width, height))
return AVERROR_INVALIDDATA;
vp8_decode_flush(s->avctx);
avcodec_set_dimensions(s->avctx, width, height);
s->mb_width = (s->avctx->coded_width +15) / 16;
s->mb_height = (s->avctx->coded_height+15) / 16;
// we allocate a border around the top/left of intra4x4 modes
// this is 4 blocks for intra4x4 to keep 4-byte alignment for fill_rectangle
s->mb_stride = s->mb_width+1;
s->b4_stride = 4*s->mb_stride;
s->macroblocks_base = av_mallocz(s->mb_stride*(s->mb_height+1)*sizeof(*s->macroblocks));
s->intra4x4_pred_mode_base = av_mallocz(s->b4_stride*(4*s->mb_height+1));
s->top_nnz = av_mallocz(s->mb_width*sizeof(*s->top_nnz));
s->macroblocks = s->macroblocks_base + 1 + s->mb_stride;
s->intra4x4_pred_mode = s->intra4x4_pred_mode_base + 4 + s->b4_stride;
memset(s->intra4x4_pred_mode_base, DC_PRED, s->b4_stride);
for (i = 0; i < 4*s->mb_height; i++)
s->intra4x4_pred_mode[i*s->b4_stride-1] = DC_PRED;
return 0;
}
static void parse_segment_info(VP8Context *s)
{
VP56RangeCoder *c = &s->c;
int i;
s->segmentation.update_map = vp8_rac_get(c);
if (vp8_rac_get(c)) { // update segment feature data
s->segmentation.absolute_vals = vp8_rac_get(c);
for (i = 0; i < 4; i++)
s->segmentation.base_quant[i] = vp8_rac_get_sint(c, 7);
for (i = 0; i < 4; i++)
s->segmentation.filter_level[i] = vp8_rac_get_sint(c, 6);
}
if (s->segmentation.update_map)
for (i = 0; i < 3; i++)
s->prob->segmentid[i] = vp8_rac_get(c) ? vp8_rac_get_uint(c, 8) : 255;
}
static void update_lf_deltas(VP8Context *s)
{
VP56RangeCoder *c = &s->c;
int i;
for (i = 0; i < 4; i++)
s->lf_delta.ref[i] = vp8_rac_get_sint(c, 6);
for (i = 0; i < 4; i++)
s->lf_delta.mode[i] = vp8_rac_get_sint(c, 6);
}
static int setup_partitions(VP8Context *s, const uint8_t *buf, int buf_size)
{
const uint8_t *sizes = buf;
int i;
s->num_coeff_partitions = 1 << vp8_rac_get_uint(&s->c, 2);
buf += 3*(s->num_coeff_partitions-1);
buf_size -= 3*(s->num_coeff_partitions-1);
if (buf_size < 0)
return -1;
for (i = 0; i < s->num_coeff_partitions-1; i++) {
int size = RL24(sizes + 3*i);
if (buf_size - size < 0)
return -1;
vp56_init_range_decoder(&s->coeff_partition[i], buf, size);
buf += size;
buf_size -= size;
}
vp56_init_range_decoder(&s->coeff_partition[i], buf, buf_size);
return 0;
}
static void get_quants(VP8Context *s)
{
VP56RangeCoder *c = &s->c;
int i, base_qi;
int yac_qi = vp8_rac_get_uint(c, 7);
int ydc_delta = vp8_rac_get_sint(c, 4);
int y2dc_delta = vp8_rac_get_sint(c, 4);
int y2ac_delta = vp8_rac_get_sint(c, 4);
int uvdc_delta = vp8_rac_get_sint(c, 4);
int uvac_delta = vp8_rac_get_sint(c, 4);
for (i = 0; i < 4; i++) {
if (s->segmentation.enabled) {
base_qi = s->segmentation.base_quant[i];
if (!s->segmentation.absolute_vals)
base_qi += yac_qi;
} else
base_qi = yac_qi;
s->qmat[i].luma_qmul[0] = vp8_dc_qlookup[av_clip(base_qi + ydc_delta , 0, 127)];
s->qmat[i].luma_qmul[1] = vp8_ac_qlookup[av_clip(base_qi , 0, 127)];
s->qmat[i].luma_dc_qmul[0] = 2 * vp8_dc_qlookup[av_clip(base_qi + y2dc_delta, 0, 127)];
s->qmat[i].luma_dc_qmul[1] = 155 * vp8_ac_qlookup[av_clip(base_qi + y2ac_delta, 0, 127)] / 100;
s->qmat[i].chroma_qmul[0] = vp8_dc_qlookup[av_clip(base_qi + uvdc_delta, 0, 127)];
s->qmat[i].chroma_qmul[1] = vp8_ac_qlookup[av_clip(base_qi + uvac_delta, 0, 127)];
s->qmat[i].luma_dc_qmul[1] = FFMAX(s->qmat[i].luma_dc_qmul[1], 8);
s->qmat[i].chroma_qmul[0] = FFMIN(s->qmat[i].chroma_qmul[0], 132);
}
}
/**
* Determine which buffers golden and altref should be updated with after this frame.
* The spec isn't clear here, so I'm going by my understanding of what libvpx does
*
* Intra frames update all 3 references
* Inter frames update VP56_FRAME_PREVIOUS if the update_last flag is set
* If the update (golden|altref) flag is set, it's updated with the current frame
* if update_last is set, and VP56_FRAME_PREVIOUS otherwise.
* If the flag is not set, the number read means:
* 0: no update
* 1: VP56_FRAME_PREVIOUS
* 2: update golden with altref, or update altref with golden
*/
static VP56Frame ref_to_update(VP8Context *s, int update, VP56Frame ref)
{
VP56RangeCoder *c = &s->c;
if (update)
return VP56_FRAME_CURRENT;
switch (vp8_rac_get_uint(c, 2)) {
case 1:
return VP56_FRAME_PREVIOUS;
case 2:
return (ref == VP56_FRAME_GOLDEN) ? VP56_FRAME_GOLDEN2 : VP56_FRAME_GOLDEN;
}
return VP56_FRAME_NONE;
}
static void update_refs(VP8Context *s)
{
VP56RangeCoder *c = &s->c;
int update_golden = vp8_rac_get(c);
int update_altref = vp8_rac_get(c);
s->update_golden = ref_to_update(s, update_golden, VP56_FRAME_GOLDEN);
s->update_altref = ref_to_update(s, update_altref, VP56_FRAME_GOLDEN2);
}
static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size)
{
VP56RangeCoder *c = &s->c;
int header_size, hscale, vscale, i, j, k, l, ret;
int width = s->avctx->width;
int height = s->avctx->height;
s->keyframe = !(buf[0] & 1);
s->profile = (buf[0]>>1) & 7;
s->invisible = !(buf[0] & 0x10);
header_size = RL24(buf) >> 5;
buf += 3;
buf_size -= 3;
if (s->profile)
av_log(s->avctx, AV_LOG_WARNING, "Profile %d not fully handled\n", s->profile);
if (header_size > buf_size - 7*s->keyframe) {
av_log(s->avctx, AV_LOG_ERROR, "Header size larger than data provided\n");
return AVERROR_INVALIDDATA;
}
if (s->keyframe) {
if (RL24(buf) != 0x2a019d) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid start code 0x%x\n", RL24(buf));
return AVERROR_INVALIDDATA;
}
width = AV_RL16(buf+3) & 0x3fff;
height = AV_RL16(buf+5) & 0x3fff;
hscale = buf[4] >> 6;
vscale = buf[6] >> 6;
buf += 7;
buf_size -= 7;
s->update_golden = s->update_altref = VP56_FRAME_CURRENT;
memcpy(s->prob->token , vp8_token_default_probs , sizeof(s->prob->token));
memcpy(s->prob->pred16x16, vp8_pred16x16_prob_inter, sizeof(s->prob->pred16x16));
memcpy(s->prob->pred8x8c , vp8_pred8x8c_prob_inter , sizeof(s->prob->pred8x8c));
memcpy(s->prob->mvc , vp8_mv_default_prob , sizeof(s->prob->mvc));
memset(&s->segmentation, 0, sizeof(s->segmentation));
}
if (!s->macroblocks_base || /* first frame */
width != s->avctx->width || height != s->avctx->height) {
if ((ret = update_dimensions(s, width, height) < 0))
return ret;
}
vp56_init_range_decoder(c, buf, header_size);
buf += header_size;
buf_size -= header_size;
if (s->keyframe) {
if (vp8_rac_get(c))
av_log(s->avctx, AV_LOG_WARNING, "Unspecified colorspace\n");
vp8_rac_get(c); // whether we can skip clamping in dsp functions
}
if ((s->segmentation.enabled = vp8_rac_get(c)))
parse_segment_info(s);
else
s->segmentation.update_map = 0; // FIXME: move this to some init function?
s->filter.simple = vp8_rac_get(c);
s->filter.level = vp8_rac_get_uint(c, 6);
s->filter.sharpness = vp8_rac_get_uint(c, 3);
if ((s->lf_delta.enabled = vp8_rac_get(c)))
if (vp8_rac_get(c))
update_lf_deltas(s);
if (setup_partitions(s, buf, buf_size)) {
av_log(s->avctx, AV_LOG_ERROR, "Invalid partitions\n");
return AVERROR_INVALIDDATA;
}
get_quants(s);
if (!s->keyframe) {
update_refs(s);
s->sign_bias[VP56_FRAME_GOLDEN] = vp8_rac_get(c);
s->sign_bias[VP56_FRAME_GOLDEN2 /* altref */] = vp8_rac_get(c);
}
// if we aren't saving this frame's probabilities for future frames,
// make a copy of the current probabilities
if (!(s->update_probabilities = vp8_rac_get(c)))
s->prob[1] = s->prob[0];
s->update_last = s->keyframe || vp8_rac_get(c);
for (i = 0; i < 4; i++)
for (j = 0; j < 8; j++)
for (k = 0; k < 3; k++)
for (l = 0; l < NUM_DCT_TOKENS-1; l++)
if (vp56_rac_get_prob(c, vp8_token_update_probs[i][j][k][l]))
s->prob->token[i][j][k][l] = vp8_rac_get_uint(c, 8);
if ((s->mbskip_enabled = vp8_rac_get(c)))
s->prob->mbskip = vp8_rac_get_uint(c, 8);
if (!s->keyframe) {
s->prob->intra = vp8_rac_get_uint(c, 8);
s->prob->last = vp8_rac_get_uint(c, 8);
s->prob->golden = vp8_rac_get_uint(c, 8);
if (vp8_rac_get(c))
for (i = 0; i < 4; i++)
s->prob->pred16x16[i] = vp8_rac_get_uint(c, 8);
if (vp8_rac_get(c))
for (i = 0; i < 3; i++)
s->prob->pred8x8c[i] = vp8_rac_get_uint(c, 8);
// 17.2 MV probability update
for (i = 0; i < 2; i++)
for (j = 0; j < 19; j++)
if (vp56_rac_get_prob(c, vp8_mv_update_prob[i][j]))
s->prob->mvc[i][j] = vp8_rac_get_nn(c);
}
return 0;
}
static inline void clamp_mv(VP8Context *s, VP56mv *dst, const VP56mv *src,
int mb_x, int mb_y)
{
#define MARGIN (16 << 2)
dst->x = av_clip(src->x, -((mb_x << 6) + MARGIN),
((s->mb_width - 1 - mb_x) << 6) + MARGIN);
dst->y = av_clip(src->y, -((mb_y << 6) + MARGIN),
((s->mb_height - 1 - mb_y) << 6) + MARGIN);
}
static void find_near_mvs(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y,
VP56mv near[2], VP56mv *best, int cnt[4])
{
VP8Macroblock *mb_edge[3] = { mb - s->mb_stride /* top */,
mb - 1 /* left */,
mb - s->mb_stride - 1 /* top-left */ };
enum { EDGE_TOP, EDGE_LEFT, EDGE_TOPLEFT };
VP56mv near_mv[4] = {{ 0 }};
enum { CNT_ZERO, CNT_NEAREST, CNT_NEAR, CNT_SPLITMV };
int idx = CNT_ZERO, n;
int best_idx = CNT_ZERO;
/* Process MB on top, left and top-left */
for (n = 0; n < 3; n++) {
VP8Macroblock *edge = mb_edge[n];
if (edge->ref_frame != VP56_FRAME_CURRENT) {
if (edge->mv.x | edge->mv.y) {
VP56mv tmp = edge->mv;
if (s->sign_bias[mb->ref_frame] != s->sign_bias[edge->ref_frame]) {
tmp.x *= -1;
tmp.y *= -1;
}
if ((tmp.x ^ near_mv[idx].x) | (tmp.y ^ near_mv[idx].y))
near_mv[++idx] = tmp;
cnt[idx] += 1 + (n != 2);
} else
cnt[CNT_ZERO] += 1 + (n != 2);
}
}
/* If we have three distinct MV's, merge first and last if they're the same */
if (cnt[CNT_SPLITMV] &&
!((near_mv[1+EDGE_TOP].x ^ near_mv[1+EDGE_TOPLEFT].x) |
(near_mv[1+EDGE_TOP].y ^ near_mv[1+EDGE_TOPLEFT].y)))
cnt[CNT_NEAREST] += 1;
cnt[CNT_SPLITMV] = ((mb_edge[EDGE_LEFT]->mode == VP8_MVMODE_SPLIT) +
(mb_edge[EDGE_TOP]->mode == VP8_MVMODE_SPLIT)) * 2 +
(mb_edge[EDGE_TOPLEFT]->mode == VP8_MVMODE_SPLIT);
/* Swap near and nearest if necessary */
if (cnt[CNT_NEAR] > cnt[CNT_NEAREST]) {
FFSWAP(int, cnt[CNT_NEAREST], cnt[CNT_NEAR]);
FFSWAP(VP56mv, near_mv[CNT_NEAREST], near_mv[CNT_NEAR]);
}
/* Choose the best mv out of 0,0 and the nearest mv */
if (cnt[CNT_NEAREST] >= cnt[CNT_ZERO])
best_idx = CNT_NEAREST;
clamp_mv(s, best, &near_mv[best_idx], mb_x, mb_y);
near[0] = near_mv[CNT_NEAREST];
near[1] = near_mv[CNT_NEAR];
}
/**
* Motion vector coding, 17.1.
*/
static int read_mv_component(VP56RangeCoder *c, const uint8_t *p)
{
int x = 0;
if (vp56_rac_get_prob(c, p[0])) {
int i;
for (i = 0; i < 3; i++)
x += vp56_rac_get_prob(c, p[9 + i]) << i;
for (i = 9; i > 3; i--)
x += vp56_rac_get_prob(c, p[9 + i]) << i;
if (!(x & 0xFFF0) || vp56_rac_get_prob(c, p[12]))
x += 8;
} else
x = vp8_rac_get_tree(c, vp8_small_mvtree, &p[2]);
return (x && vp56_rac_get_prob(c, p[1])) ? -x : x;
}
static const uint8_t *get_submv_prob(const VP56mv *left, const VP56mv *top)
{
int l_is_zero = !(left->x | left->y);
int t_is_zero = !(top->x | top->y);
int equal = !((left->x ^ top->x) | (left->y ^ top->y));
if (equal)
return l_is_zero ? vp8_submv_prob[4] : vp8_submv_prob[3];
if (t_is_zero)
return vp8_submv_prob[2];
return l_is_zero ? vp8_submv_prob[1] : vp8_submv_prob[0];
}
/**
* Split motion vector prediction, 16.4.
*/
static void decode_splitmvs(VP8Context *s, VP56RangeCoder *c,
VP8Macroblock *mb, VP56mv *base_mv)
{
int part_idx = mb->partitioning =
vp8_rac_get_tree(c, vp8_mbsplit_tree, vp8_mbsplit_prob);
int n, num = vp8_mbsplit_count[part_idx];
VP56mv part_mv[16];
for (n = 0; n < num; n++) {
int k = vp8_mbfirstidx[part_idx][n];
const VP56mv *left = (k & 3) ? &mb->bmv[k - 1] : &mb[-1].bmv[k + 3],
*above = (k > 3) ? &mb->bmv[k - 4] : &mb[-s->mb_stride].bmv[k + 12];
const uint8_t *submv_prob = get_submv_prob(left, above);
switch (vp8_rac_get_tree(c, vp8_submv_ref_tree, submv_prob)) {
case VP8_SUBMVMODE_NEW4X4:
part_mv[n].y = base_mv->y + read_mv_component(c, s->prob->mvc[0]);
part_mv[n].x = base_mv->x + read_mv_component(c, s->prob->mvc[1]);
break;
case VP8_SUBMVMODE_ZERO4X4:
part_mv[n].x = 0;
part_mv[n].y = 0;
break;
case VP8_SUBMVMODE_LEFT4X4:
part_mv[n] = *left;
break;
case VP8_SUBMVMODE_TOP4X4:
part_mv[n] = *above;
break;
}
/* fill out over the 4x4 blocks in MB */
for (k = 0; k < 16; k++)
if (vp8_mbsplits[part_idx][k] == n) {
mb->bmv[k] = part_mv[n];
}
}
}
static inline void decode_intra4x4_modes(VP56RangeCoder *c, uint8_t *intra4x4,
int stride, int keyframe)
{
int x, y, t, l;
const uint8_t *ctx = vp8_pred4x4_prob_inter;
for (y = 0; y < 4; y++) {
for (x = 0; x < 4; x++) {
if (keyframe) {
t = intra4x4[x - stride];
l = intra4x4[x - 1];
ctx = vp8_pred4x4_prob_intra[t][l];
}
intra4x4[x] = vp8_rac_get_tree(c, vp8_pred4x4_tree, ctx);
}
intra4x4 += stride;
}
}
static void decode_mb_mode(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y,
uint8_t *intra4x4)
{
VP56RangeCoder *c = &s->c;
int n;
if (s->segmentation.update_map)
mb->segment = vp8_rac_get_tree(c, vp8_segmentid_tree, s->prob->segmentid);
mb->skip = s->mbskip_enabled ? vp56_rac_get_prob(c, s->prob->mbskip) : 0;
if (s->keyframe) {
mb->mode = vp8_rac_get_tree(c, vp8_pred16x16_tree_intra, vp8_pred16x16_prob_intra);
if (mb->mode == MODE_I4x4) {
decode_intra4x4_modes(c, intra4x4, s->b4_stride, 1);
} else
fill_rectangle(intra4x4, 4, 4, s->b4_stride, vp8_pred4x4_mode[mb->mode], 1);
s->chroma_pred_mode = vp8_rac_get_tree(c, vp8_pred8x8c_tree, vp8_pred8x8c_prob_intra);
mb->ref_frame = VP56_FRAME_CURRENT;
} else if (vp56_rac_get_prob(c, s->prob->intra)) {
VP56mv near[2], best;
int cnt[4] = { 0 };
uint8_t p[4];
// inter MB, 16.2
if (vp56_rac_get_prob(c, s->prob->last))
mb->ref_frame = vp56_rac_get_prob(c, s->prob->golden) ?
VP56_FRAME_GOLDEN2 /* altref */ : VP56_FRAME_GOLDEN;
else
mb->ref_frame = VP56_FRAME_PREVIOUS;
// motion vectors, 16.3
find_near_mvs(s, mb, mb_x, mb_y, near, &best, cnt);
for (n = 0; n < 4; n++)
p[n] = vp8_mode_contexts[cnt[n]][n];
mb->mode = vp8_rac_get_tree(c, vp8_pred16x16_tree_mvinter, p);
switch (mb->mode) {
case VP8_MVMODE_SPLIT:
decode_splitmvs(s, c, mb, &best);
mb->mv = mb->bmv[15];
break;
case VP8_MVMODE_ZERO:
mb->mv.x = 0;
mb->mv.y = 0;
break;
case VP8_MVMODE_NEAREST:
clamp_mv(s, &mb->mv, &near[0], mb_x, mb_y);
break;
case VP8_MVMODE_NEAR:
clamp_mv(s, &mb->mv, &near[1], mb_x, mb_y);
break;
case VP8_MVMODE_NEW:
mb->mv.y = best.y + read_mv_component(c, s->prob->mvc[0]);
mb->mv.x = best.x + read_mv_component(c, s->prob->mvc[1]);
break;
}
if (mb->mode != VP8_MVMODE_SPLIT) {
for (n = 0; n < 16; n++)
mb->bmv[n] = mb->mv;
}
} else {
// intra MB, 16.1
mb->mode = vp8_rac_get_tree(c, vp8_pred16x16_tree_inter, s->prob->pred16x16);
if (mb->mode == MODE_I4x4) {
decode_intra4x4_modes(c, intra4x4, s->b4_stride, 0);
} else
fill_rectangle(intra4x4, 4, 4, s->b4_stride, vp8_pred4x4_mode[mb->mode], 1);
s->chroma_pred_mode = vp8_rac_get_tree(c, vp8_pred8x8c_tree, s->prob->pred8x8c);
mb->ref_frame = VP56_FRAME_CURRENT;
}
}
/**
* @param i initial coeff index, 0 unless a separate DC block is coded
* @param zero_nhood the initial prediction context for number of surrounding
* all-zero blocks (only left/top, so 0-2)
* @param qmul[0] dc dequant factor
* @param qmul[1] ac dequant factor
* @return 0 if no coeffs were decoded
* otherwise, the index of the last coeff decoded plus one
*/
static int decode_block_coeffs(VP56RangeCoder *c, DCTELEM block[16],
uint8_t probs[8][3][NUM_DCT_TOKENS-1],
int i, int zero_nhood, int16_t qmul[2])
{
int token, nonzero = 0;
int offset = 0;
for (; i < 16; i++) {
token = vp8_rac_get_tree_with_offset(c, vp8_coeff_tree, probs[vp8_coeff_band[i]][zero_nhood], offset);
if (token == DCT_EOB)
break;
else if (token >= DCT_CAT1) {
int cat = token-DCT_CAT1;
token = vp8_rac_get_coeff(c, vp8_dct_cat_prob[cat]);
token += vp8_dct_cat_offset[cat];
}
// after the first token, the non-zero prediction context becomes
// based on the last decoded coeff
if (!token) {
zero_nhood = 0;
offset = 1;
continue;
} else if (token == 1)
zero_nhood = 1;
else
zero_nhood = 2;
// todo: full [16] qmat? load into register?
block[zigzag_scan[i]] = (vp8_rac_get(c) ? -token : token) * qmul[!!i];
nonzero = i+1;
offset = 0;
}
return nonzero;
}
static void decode_mb_coeffs(VP8Context *s, VP56RangeCoder *c, VP8Macroblock *mb,
uint8_t t_nnz[9], uint8_t l_nnz[9])
{
LOCAL_ALIGNED_16(DCTELEM, dc,[16]);
int i, x, y, luma_start = 0, luma_ctx = 3;
int nnz_pred, nnz, nnz_total = 0;
int segment = s->segmentation.enabled ? mb->segment : 0;
s->dsp.clear_blocks((DCTELEM *)s->block);
if (mb->mode != MODE_I4x4 && mb->mode != VP8_MVMODE_SPLIT) {
AV_ZERO128(dc);
AV_ZERO128(dc+8);
nnz_pred = t_nnz[8] + l_nnz[8];
// decode DC values and do hadamard
nnz = decode_block_coeffs(c, dc, s->prob->token[1], 0, nnz_pred,
s->qmat[segment].luma_dc_qmul);
l_nnz[8] = t_nnz[8] = !!nnz;
nnz_total += nnz;
s->vp8dsp.vp8_luma_dc_wht(s->block, dc);
luma_start = 1;
luma_ctx = 0;
}
// luma blocks
for (y = 0; y < 4; y++)
for (x = 0; x < 4; x++) {
nnz_pred = l_nnz[y] + t_nnz[x];
nnz = decode_block_coeffs(c, s->block[y][x], s->prob->token[luma_ctx], luma_start,
nnz_pred, s->qmat[segment].luma_qmul);
// nnz+luma_start may be one more than the actual last index, but we don't care
s->non_zero_count_cache[y][x] = nnz + luma_start;
t_nnz[x] = l_nnz[y] = !!nnz;
nnz_total += nnz;
}
// chroma blocks
// TODO: what to do about dimensions? 2nd dim for luma is x,
// but for chroma it's (y<<1)|x
for (i = 4; i < 6; i++)
for (y = 0; y < 2; y++)
for (x = 0; x < 2; x++) {
nnz_pred = l_nnz[i+2*y] + t_nnz[i+2*x];
nnz = decode_block_coeffs(c, s->block[i][(y<<1)+x], s->prob->token[2], 0,
nnz_pred, s->qmat[segment].chroma_qmul);
s->non_zero_count_cache[i][(y<<1)+x] = nnz;
t_nnz[i+2*x] = l_nnz[i+2*y] = !!nnz;
nnz_total += nnz;
}
// if there were no coded coeffs despite the macroblock not being marked skip,
// we MUST not do the inner loop filter and should not do IDCT
// Since skip isn't used for bitstream prediction, just manually set it.
if (!nnz_total)
mb->skip = 1;
}
static int check_intra_pred_mode(int mode, int mb_x, int mb_y)
{
if (mode == DC_PRED8x8) {
if (!(mb_x|mb_y))
mode = DC_128_PRED8x8;
else if (!mb_y)
mode = LEFT_DC_PRED8x8;
else if (!mb_x)
mode = TOP_DC_PRED8x8;
}
return mode;
}
static void intra_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
uint8_t *bmode, int mb_x, int mb_y)
{
int x, y, mode, nnz, tr;
if (mb->mode < MODE_I4x4) {
mode = check_intra_pred_mode(mb->mode, mb_x, mb_y);
s->hpc.pred16x16[mode](dst[0], s->linesize);
} else {
uint8_t *ptr = dst[0];
// all blocks on the right edge of the macroblock use bottom edge
// the top macroblock for their topright edge
uint8_t *tr_right = ptr - s->linesize + 16;
// if we're on the right edge of the frame, said edge is extended
// from the top macroblock
if (mb_x == s->mb_width-1) {
tr = tr_right[-1]*0x01010101;
tr_right = (uint8_t *)&tr;
}
for (y = 0; y < 4; y++) {
uint8_t *topright = ptr + 4 - s->linesize;
for (x = 0; x < 4; x++) {
if (x == 3)
topright = tr_right;
s->hpc.pred4x4[bmode[x]](ptr+4*x, topright, s->linesize);
nnz = s->non_zero_count_cache[y][x];
if (nnz) {
if (nnz == 1)
s->vp8dsp.vp8_idct_dc_add(ptr+4*x, s->block[y][x], s->linesize);
else
s->vp8dsp.vp8_idct_add(ptr+4*x, s->block[y][x], s->linesize);
}
topright += 4;
}
ptr += 4*s->linesize;
bmode += s->b4_stride;
}
}
mode = check_intra_pred_mode(s->chroma_pred_mode, mb_x, mb_y);
s->hpc.pred8x8[mode](dst[1], s->uvlinesize);
s->hpc.pred8x8[mode](dst[2], s->uvlinesize);
}
/**
* Generic MC function.
*
* @param s VP8 decoding context
* @param luma 1 for luma (Y) planes, 0 for chroma (Cb/Cr) planes
* @param dst target buffer for block data at block position
* @param src reference picture buffer at origin (0, 0)
* @param mv motion vector (relative to block position) to get pixel data from
* @param x_off horizontal position of block from origin (0, 0)
* @param y_off vertical position of block from origin (0, 0)
* @param block_w width of block (16, 8 or 4)
* @param block_h height of block (always same as block_w)
* @param width width of src/dst plane data
* @param height height of src/dst plane data
* @param linesize size of a single line of plane data, including padding
*/
static inline void vp8_mc(VP8Context *s, int luma,
uint8_t *dst, uint8_t *src, const VP56mv *mv,
int x_off, int y_off, int block_w, int block_h,
int width, int height, int linesize,
h264_chroma_mc_func mc_func[3][3])
{
static const uint8_t idx[8] = { 0, 1, 2, 1, 2, 1, 2, 1 };
int mx = (mv->x << luma)&7, mx_idx = idx[mx];
int my = (mv->y << luma)&7, my_idx = idx[my];
x_off += mv->x >> (3 - luma);
y_off += mv->y >> (3 - luma);
// edge emulation
src += y_off * linesize + x_off;
if (x_off < 2 || x_off >= width - block_w - 3 ||
y_off < 2 || y_off >= height - block_h - 3) {
ff_emulated_edge_mc(s->edge_emu_buffer, src - 2 * linesize - 2, linesize,
block_w + 5, block_h + 5,
x_off - 2, y_off - 2, width, height);
src = s->edge_emu_buffer + 2 + linesize * 2;
}
mc_func[my_idx][mx_idx](dst, src, linesize, block_h, mx, my);
}
/**
* Apply motion vectors to prediction buffer, chapter 18.
*/
static void inter_predict(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb,
int mb_x, int mb_y)
{
int x_off = mb_x << 4, y_off = mb_y << 4;
int width = 16*s->mb_width, height = 16*s->mb_height;
VP56mv uvmv;
if (mb->mode < VP8_MVMODE_SPLIT) {
/* Y */
vp8_mc(s, 1, dst[0], s->framep[mb->ref_frame]->data[0], &mb->mv,
x_off, y_off, 16, 16, width, height, s->linesize,
s->vp8dsp.put_vp8_epel_pixels_tab[0]);
/* U/V */
uvmv = mb->mv;
if (s->profile == 3) {
uvmv.x &= ~7;
uvmv.y &= ~7;
}
x_off >>= 1; y_off >>= 1; width >>= 1; height >>= 1;
vp8_mc(s, 0, dst[1], s->framep[mb->ref_frame]->data[1], &uvmv,
x_off, y_off, 8, 8, width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[1]);
vp8_mc(s, 0, dst[2], s->framep[mb->ref_frame]->data[2], &uvmv,
x_off, y_off, 8, 8, width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[1]);
} else {
int x, y;
/* Y */
for (y = 0; y < 4; y++) {
for (x = 0; x < 4; x++) {
vp8_mc(s, 1, dst[0] + 4*y*s->linesize + x*4,
s->framep[mb->ref_frame]->data[0], &mb->bmv[4*y + x],
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->linesize,
s->vp8dsp.put_vp8_epel_pixels_tab[2]);
}
}
/* U/V */
x_off >>= 1; y_off >>= 1; width >>= 1; height >>= 1;
for (y = 0; y < 2; y++) {
for (x = 0; x < 2; x++) {
uvmv.x = mb->bmv[ 2*y * 4 + 2*x ].x +
mb->bmv[ 2*y * 4 + 2*x+1].x +
mb->bmv[(2*y+1) * 4 + 2*x ].x +
mb->bmv[(2*y+1) * 4 + 2*x+1].x;
uvmv.y = mb->bmv[ 2*y * 4 + 2*x ].y +
mb->bmv[ 2*y * 4 + 2*x+1].y +
mb->bmv[(2*y+1) * 4 + 2*x ].y +
mb->bmv[(2*y+1) * 4 + 2*x+1].y;
uvmv.x = (uvmv.x + (uvmv.x < 0 ? -2 : 2)) / 4;
uvmv.y = (uvmv.y + (uvmv.y < 0 ? -2 : 2)) / 4;
if (s->profile == 3) {
uvmv.x &= ~7;
uvmv.y &= ~7;
}
vp8_mc(s, 0, dst[1] + 4*y*s->uvlinesize + x*4,
s->framep[mb->ref_frame]->data[1], &uvmv,
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[2]);
vp8_mc(s, 0, dst[2] + 4*y*s->uvlinesize + x*4,
s->framep[mb->ref_frame]->data[2], &uvmv,
4*x + x_off, 4*y + y_off, 4, 4,
width, height, s->uvlinesize,
s->vp8dsp.put_vp8_epel_pixels_tab[2]);
}
}
}
}
static void idct_mb(VP8Context *s, uint8_t *y_dst, uint8_t *u_dst, uint8_t *v_dst,
VP8Macroblock *mb)
{
int x, y, nnz;
if (mb->mode != MODE_I4x4)
for (y = 0; y < 4; y++) {
for (x = 0; x < 4; x++) {
nnz = s->non_zero_count_cache[y][x];
if (nnz) {
if (nnz == 1)
s->vp8dsp.vp8_idct_dc_add(y_dst+4*x, s->block[y][x], s->linesize);
else
s->vp8dsp.vp8_idct_add(y_dst+4*x, s->block[y][x], s->linesize);
}
}
y_dst += 4*s->linesize;
}
for (y = 0; y < 2; y++) {
for (x = 0; x < 2; x++) {
nnz = s->non_zero_count_cache[4][(y<<1)+x];
if (nnz) {
if (nnz == 1)
s->vp8dsp.vp8_idct_dc_add(u_dst+4*x, s->block[4][(y<<1)+x], s->uvlinesize);
else
s->vp8dsp.vp8_idct_add(u_dst+4*x, s->block[4][(y<<1)+x], s->uvlinesize);
}
nnz = s->non_zero_count_cache[5][(y<<1)+x];
if (nnz) {
if (nnz == 1)
s->vp8dsp.vp8_idct_dc_add(v_dst+4*x, s->block[5][(y<<1)+x], s->uvlinesize);
else
s->vp8dsp.vp8_idct_add(v_dst+4*x, s->block[5][(y<<1)+x], s->uvlinesize);
}
}
u_dst += 4*s->uvlinesize;
v_dst += 4*s->uvlinesize;
}
}
static void filter_level_for_mb(VP8Context *s, VP8Macroblock *mb, int *level, int *inner, int *hev_thresh)
{
int interior_limit, filter_level;
if (s->segmentation.enabled) {
filter_level = s->segmentation.filter_level[mb->segment];
if (!s->segmentation.absolute_vals)
filter_level += s->filter.level;
} else
filter_level = s->filter.level;
if (s->lf_delta.enabled) {
filter_level += s->lf_delta.ref[mb->ref_frame];
if (mb->ref_frame == VP56_FRAME_CURRENT) {
if (mb->mode == MODE_I4x4)
filter_level += s->lf_delta.mode[0];
} else {
if (mb->mode == VP8_MVMODE_ZERO)
filter_level += s->lf_delta.mode[1];
else if (mb->mode == VP8_MVMODE_SPLIT)
filter_level += s->lf_delta.mode[3];
else
filter_level += s->lf_delta.mode[2];
}
}
filter_level = av_clip(filter_level, 0, 63);
interior_limit = filter_level;
if (s->filter.sharpness) {
interior_limit >>= s->filter.sharpness > 4 ? 2 : 1;
interior_limit = FFMIN(interior_limit, 9 - s->filter.sharpness);
}
interior_limit = FFMAX(interior_limit, 1);
*level = filter_level;
*inner = interior_limit;
if (hev_thresh) {
*hev_thresh = filter_level >= 15;
if (s->keyframe) {
if (filter_level >= 40)
*hev_thresh = 2;
} else {
if (filter_level >= 40)
*hev_thresh = 3;
else if (filter_level >= 20)
*hev_thresh = 2;
}
}
}
// TODO: look at backup_mb_border / xchg_mb_border in h264.c
static void filter_mb(VP8Context *s, uint8_t *dst[3], VP8Macroblock *mb, int mb_x, int mb_y)
{
int filter_level, inner_limit, hev_thresh;
filter_level_for_mb(s, mb, &filter_level, &inner_limit, &hev_thresh);
if (!filter_level)
return;
if (mb_x) {
s->vp8dsp.vp8_h_loop_filter16(dst[0], s->linesize, filter_level+2, inner_limit, hev_thresh);
s->vp8dsp.vp8_h_loop_filter8 (dst[1], s->uvlinesize, filter_level+2, inner_limit, hev_thresh);
s->vp8dsp.vp8_h_loop_filter8 (dst[2], s->uvlinesize, filter_level+2, inner_limit, hev_thresh);
}
if (!mb->skip || mb->mode == MODE_I4x4 || mb->mode == VP8_MVMODE_SPLIT) {
s->vp8dsp.vp8_h_loop_filter16_inner(dst[0]+ 4, s->linesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_h_loop_filter16_inner(dst[0]+ 8, s->linesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_h_loop_filter16_inner(dst[0]+12, s->linesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_h_loop_filter8_inner (dst[1]+ 4, s->uvlinesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_h_loop_filter8_inner (dst[2]+ 4, s->uvlinesize, filter_level, inner_limit, hev_thresh);
}
if (mb_y) {
s->vp8dsp.vp8_v_loop_filter16(dst[0], s->linesize, filter_level+2, inner_limit, hev_thresh);
s->vp8dsp.vp8_v_loop_filter8 (dst[1], s->uvlinesize, filter_level+2, inner_limit, hev_thresh);
s->vp8dsp.vp8_v_loop_filter8 (dst[2], s->uvlinesize, filter_level+2, inner_limit, hev_thresh);
}
if (!mb->skip || mb->mode == MODE_I4x4 || mb->mode == VP8_MVMODE_SPLIT) {
s->vp8dsp.vp8_v_loop_filter16_inner(dst[0]+ 4*s->linesize, s->linesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_v_loop_filter16_inner(dst[0]+ 8*s->linesize, s->linesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_v_loop_filter16_inner(dst[0]+12*s->linesize, s->linesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_v_loop_filter8_inner (dst[1]+ 4*s->uvlinesize, s->uvlinesize, filter_level, inner_limit, hev_thresh);
s->vp8dsp.vp8_v_loop_filter8_inner (dst[2]+ 4*s->uvlinesize, s->uvlinesize, filter_level, inner_limit, hev_thresh);
}
}
static void filter_mb_simple(VP8Context *s, uint8_t *dst, VP8Macroblock *mb, int mb_x, int mb_y)
{
int filter_level, inner_limit, mbedge_lim, bedge_lim;
filter_level_for_mb(s, mb, &filter_level, &inner_limit, NULL);
if (!filter_level)
return;
mbedge_lim = 2*(filter_level+2) + inner_limit;
bedge_lim = 2* filter_level + inner_limit;
if (mb_x)
s->vp8dsp.vp8_h_loop_filter_simple(dst, s->linesize, mbedge_lim);
if (!mb->skip || mb->mode == MODE_I4x4 || mb->mode == VP8_MVMODE_SPLIT) {
s->vp8dsp.vp8_h_loop_filter_simple(dst+ 4, s->linesize, bedge_lim);
s->vp8dsp.vp8_h_loop_filter_simple(dst+ 8, s->linesize, bedge_lim);
s->vp8dsp.vp8_h_loop_filter_simple(dst+12, s->linesize, bedge_lim);
}
if (mb_y)
s->vp8dsp.vp8_v_loop_filter_simple(dst, s->linesize, mbedge_lim);
if (!mb->skip || mb->mode == MODE_I4x4 || mb->mode == VP8_MVMODE_SPLIT) {
s->vp8dsp.vp8_v_loop_filter_simple(dst+ 4*s->linesize, s->linesize, bedge_lim);
s->vp8dsp.vp8_v_loop_filter_simple(dst+ 8*s->linesize, s->linesize, bedge_lim);
s->vp8dsp.vp8_v_loop_filter_simple(dst+12*s->linesize, s->linesize, bedge_lim);
}
}
static void filter_mb_row(VP8Context *s, int mb_y)
{
VP8Macroblock *mb = s->macroblocks + mb_y*s->mb_stride;
uint8_t *dst[3] = {
s->framep[VP56_FRAME_CURRENT]->data[0] + 16*mb_y*s->linesize,
s->framep[VP56_FRAME_CURRENT]->data[1] + 8*mb_y*s->uvlinesize,
s->framep[VP56_FRAME_CURRENT]->data[2] + 8*mb_y*s->uvlinesize
};
int mb_x;
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
filter_mb(s, dst, mb++, mb_x, mb_y);
dst[0] += 16;
dst[1] += 8;
dst[2] += 8;
}
}
static void filter_mb_row_simple(VP8Context *s, int mb_y)
{
uint8_t *dst = s->framep[VP56_FRAME_CURRENT]->data[0] + 16*mb_y*s->linesize;
VP8Macroblock *mb = s->macroblocks + mb_y*s->mb_stride;
int mb_x;
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
filter_mb_simple(s, dst, mb++, mb_x, mb_y);
dst += 16;
}
}
static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
AVPacket *avpkt)
{
VP8Context *s = avctx->priv_data;
int ret, mb_x, mb_y, i, y, referenced;
enum AVDiscard skip_thresh;
AVFrame *curframe;
if ((ret = decode_frame_header(s, avpkt->data, avpkt->size)) < 0)
return ret;
referenced = s->update_last || s->update_golden == VP56_FRAME_CURRENT
|| s->update_altref == VP56_FRAME_CURRENT;
skip_thresh = !referenced ? AVDISCARD_NONREF :
!s->keyframe ? AVDISCARD_NONKEY : AVDISCARD_ALL;
if (avctx->skip_frame >= skip_thresh) {
s->invisible = 1;
goto skip_decode;
}
for (i = 0; i < 4; i++)
if (&s->frames[i] != s->framep[VP56_FRAME_PREVIOUS] &&
&s->frames[i] != s->framep[VP56_FRAME_GOLDEN] &&
&s->frames[i] != s->framep[VP56_FRAME_GOLDEN2]) {
curframe = s->framep[VP56_FRAME_CURRENT] = &s->frames[i];
break;
}
if (curframe->data[0])
avctx->release_buffer(avctx, curframe);
curframe->key_frame = s->keyframe;
curframe->pict_type = s->keyframe ? FF_I_TYPE : FF_P_TYPE;
curframe->reference = referenced ? 3 : 0;
if ((ret = avctx->get_buffer(avctx, curframe))) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed!\n");
return ret;
}
// Given that arithmetic probabilities are updated every frame, it's quite likely
// that the values we have on a random interframe are complete junk if we didn't
// start decode on a keyframe. So just don't display anything rather than junk.
if (!s->keyframe && (!s->framep[VP56_FRAME_PREVIOUS] ||
!s->framep[VP56_FRAME_GOLDEN] ||
!s->framep[VP56_FRAME_GOLDEN2])) {
av_log(avctx, AV_LOG_WARNING, "Discarding interframe without a prior keyframe!\n");
return AVERROR_INVALIDDATA;
}
s->linesize = curframe->linesize[0];
s->uvlinesize = curframe->linesize[1];
if (!s->edge_emu_buffer)
s->edge_emu_buffer = av_malloc(21*s->linesize);
memset(s->top_nnz, 0, s->mb_width*sizeof(*s->top_nnz));
// top edge of 127 for intra prediction
if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
memset(curframe->data[0] - s->linesize -1, 127, s->linesize +1);
memset(curframe->data[1] - s->uvlinesize-1, 127, s->uvlinesize+1);
memset(curframe->data[2] - s->uvlinesize-1, 127, s->uvlinesize+1);
}
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
VP56RangeCoder *c = &s->coeff_partition[mb_y & (s->num_coeff_partitions-1)];
VP8Macroblock *mb = s->macroblocks + mb_y*s->mb_stride;
uint8_t *intra4x4 = s->intra4x4_pred_mode + 4*mb_y*s->b4_stride;
uint8_t *dst[3] = {
curframe->data[0] + 16*mb_y*s->linesize,
curframe->data[1] + 8*mb_y*s->uvlinesize,
curframe->data[2] + 8*mb_y*s->uvlinesize
};
memset(s->left_nnz, 0, sizeof(s->left_nnz));
// left edge of 129 for intra prediction
if (!(avctx->flags & CODEC_FLAG_EMU_EDGE))
for (i = 0; i < 3; i++)
for (y = 0; y < 16>>!!i; y++)
dst[i][y*curframe->linesize[i]-1] = 129;
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
decode_mb_mode(s, mb, mb_x, mb_y, intra4x4 + 4*mb_x);
if (!mb->skip)
decode_mb_coeffs(s, c, mb, s->top_nnz[mb_x], s->left_nnz);
else {
AV_ZERO128(s->non_zero_count_cache); // luma
AV_ZERO64(s->non_zero_count_cache[4]); // chroma
}
if (mb->mode <= MODE_I4x4) {
intra_predict(s, dst, mb, intra4x4 + 4*mb_x, mb_x, mb_y);
memset(mb->bmv, 0, sizeof(mb->bmv));
} else {
inter_predict(s, dst, mb, mb_x, mb_y);
}
if (!mb->skip) {
idct_mb(s, dst[0], dst[1], dst[2], mb);
} else {
AV_ZERO64(s->left_nnz);
AV_WN64(s->top_nnz[mb_x], 0); // array of 9, so unaligned
// Reset DC block predictors if they would exist if the mb had coefficients
if (mb->mode != MODE_I4x4 && mb->mode != VP8_MVMODE_SPLIT) {
s->left_nnz[8] = 0;
s->top_nnz[mb_x][8] = 0;
}
}
dst[0] += 16;
dst[1] += 8;
dst[2] += 8;
mb++;
}
if (mb_y && s->filter.level && avctx->skip_loop_filter < skip_thresh) {
if (s->filter.simple)
filter_mb_row_simple(s, mb_y-1);
else
filter_mb_row(s, mb_y-1);
}
}
if (s->filter.level && avctx->skip_loop_filter < skip_thresh) {
if (s->filter.simple)
filter_mb_row_simple(s, mb_y-1);
else
filter_mb_row(s, mb_y-1);
}
skip_decode:
// if future frames don't use the updated probabilities,
// reset them to the values we saved
if (!s->update_probabilities)
s->prob[0] = s->prob[1];
// check if golden and altref are swapped
if (s->update_altref == VP56_FRAME_GOLDEN &&
s->update_golden == VP56_FRAME_GOLDEN2)
FFSWAP(AVFrame *, s->framep[VP56_FRAME_GOLDEN], s->framep[VP56_FRAME_GOLDEN2]);
else {
if (s->update_altref != VP56_FRAME_NONE)
s->framep[VP56_FRAME_GOLDEN2] = s->framep[s->update_altref];
if (s->update_golden != VP56_FRAME_NONE)
s->framep[VP56_FRAME_GOLDEN] = s->framep[s->update_golden];
}
if (s->update_last) // move cur->prev
s->framep[VP56_FRAME_PREVIOUS] = s->framep[VP56_FRAME_CURRENT];
// release no longer referenced frames
for (i = 0; i < 4; i++)
if (s->frames[i].data[0] &&
&s->frames[i] != s->framep[VP56_FRAME_CURRENT] &&
&s->frames[i] != s->framep[VP56_FRAME_PREVIOUS] &&
&s->frames[i] != s->framep[VP56_FRAME_GOLDEN] &&
&s->frames[i] != s->framep[VP56_FRAME_GOLDEN2])
avctx->release_buffer(avctx, &s->frames[i]);
if (!s->invisible) {
*(AVFrame*)data = *s->framep[VP56_FRAME_CURRENT];
*data_size = sizeof(AVFrame);
}
return avpkt->size;
}
static av_cold int vp8_decode_init(AVCodecContext *avctx)
{
VP8Context *s = avctx->priv_data;
s->avctx = avctx;
avctx->pix_fmt = PIX_FMT_YUV420P;
dsputil_init(&s->dsp, avctx);
ff_h264_pred_init(&s->hpc, CODEC_ID_VP8);
ff_vp8dsp_init(&s->vp8dsp);
// intra pred needs edge emulation among other things
if (avctx->flags&CODEC_FLAG_EMU_EDGE) {
av_log(avctx, AV_LOG_ERROR, "Edge emulation not supproted\n");
return AVERROR_PATCHWELCOME;
}
return 0;
}
static av_cold int vp8_decode_free(AVCodecContext *avctx)
{
vp8_decode_flush(avctx);
return 0;
}
AVCodec vp8_decoder = {
"vp8",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_VP8,
sizeof(VP8Context),
vp8_decode_init,
NULL,
vp8_decode_free,
vp8_decode_frame,
CODEC_CAP_DR1,
.flush = vp8_decode_flush,
.long_name = NULL_IF_CONFIG_SMALL("On2 VP8"),
};
libavcodec/vp8data.h 0 → 100644
View file @ 3b636f21
/**
* VP8 compatible video decoder
*
* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
*
* 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
*/
// TODO: move these #define ane enum to a better header...
#define VP8_MAX_QUANT 127
enum dct_token {
DCT_0,
DCT_1,
DCT_2,
DCT_3,
DCT_4,
DCT_CAT1,
DCT_CAT2,
DCT_CAT3,
DCT_CAT4,
DCT_CAT5,
DCT_CAT6,
DCT_EOB,
NUM_DCT_TOKENS
};
#include "h264pred.h"
// used to signal 4x4 intra pred in luma MBs
#define MODE_I4x4 4
enum inter_mvmode {
VP8_MVMODE_NEAREST = MODE_I4x4 + 1,
VP8_MVMODE_NEAR,
VP8_MVMODE_ZERO,
VP8_MVMODE_NEW,
VP8_MVMODE_SPLIT
};
enum inter_submvmode {
VP8_SUBMVMODE_LEFT4X4,
VP8_SUBMVMODE_TOP4X4,
VP8_SUBMVMODE_ZERO4X4,
VP8_SUBMVMODE_NEW4X4
};
static const uint8_t vp8_pred4x4_mode[] =
{
[DC_PRED8x8] = DC_PRED,
[VERT_PRED8x8] = VERT_PRED,
[HOR_PRED8x8] = HOR_PRED,
[PLANE_PRED8x8] = TM_VP8_PRED,
};
static const int8_t vp8_pred16x16_tree_intra[4][2] =
{
{ -MODE_I4x4, 1 }, // '0'
{ 2, 3 },
{ -DC_PRED8x8, -VERT_PRED8x8 }, // '100', '101'
{ -HOR_PRED8x8, -PLANE_PRED8x8 }, // '110', '111'
};
static const int8_t vp8_pred16x16_tree_inter[4][2] =
{
{ -DC_PRED8x8, 1 }, // '0'
{ 2, 3 },
{ -VERT_PRED8x8, -HOR_PRED8x8 }, // '100', '101'
{ -PLANE_PRED8x8, -MODE_I4x4 }, // '110', '111'
};
static const int vp8_mode_contexts[6][4] = {
{ 7, 1, 1, 143 },
{ 14, 18, 14, 107 },
{ 135, 64, 57, 68 },
{ 60, 56, 128, 65 },
{ 159, 134, 128, 34 },
{ 234, 188, 128, 28 },
};
static const int8_t vp8_pred16x16_tree_mvinter[4][2] = {
{ -VP8_MVMODE_ZERO, 1 }, // '0'
{ -VP8_MVMODE_NEAREST, 2 }, // '10'
{ -VP8_MVMODE_NEAR, 3 }, // '110'
{ -VP8_MVMODE_NEW, -VP8_MVMODE_SPLIT } // '1110', '1111'
};
static const int8_t vp8_small_mvtree[7][2] = {
{ 1, 4 },
{ 2, 3 },
{ -0, -1 }, // '000', '001'
{ -2, -3 }, // '010', '011'
{ 5, 6 },
{ -4, -5 }, // '100', '101'
{ -6, -7 } // '110', '111'
};
static const uint8_t vp8_mbsplits[4][16] = {
{ 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 1, 1, 1, 1, 1, 1 },
{ 0, 0, 1, 1, 0, 0, 1, 1,
0, 0, 1, 1, 0, 0, 1, 1 },
{ 0, 0, 1, 1, 0, 0, 1, 1,
2, 2, 3, 3, 2, 2, 3, 3 },
{ 0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15 }
};
static const uint8_t vp8_mbfirstidx[4][16] = {
{ 0, 8 }, { 0, 2 }, { 0, 2, 8, 10 },
{ 0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15 }
};
static const int8_t vp8_mbsplit_tree[3][2] = {
{ -3, 1 }, // '0' - 16 individual MVs
{ -2, 2 }, // '10' - quarter-based MVs
{ -0, -1 } // '110' - top/bottom MVs,
// '111' - left/right MVs
};
static const uint8_t vp8_mbsplit_count[4] = { 2, 2, 4, 16 };
static const uint8_t vp8_mbsplit_prob[3] = { 110, 111, 150 };
static const uint8_t vp8_submv_prob[5][3] = {
{ 147, 136, 18 },
{ 106, 145, 1 },
{ 179, 121, 1 },
{ 223, 1, 34 },
{ 208, 1, 1 }
};
static const int8_t vp8_submv_ref_tree[3][2] = {
{ -VP8_SUBMVMODE_LEFT4X4, 1 }, // '0'
{ -VP8_SUBMVMODE_TOP4X4, 2 }, // '10'
{ -VP8_SUBMVMODE_ZERO4X4, -VP8_SUBMVMODE_NEW4X4 } // '110', '111'
};
static const uint8_t vp8_pred16x16_prob_intra[4] = { 145, 156, 163, 128 };
static const uint8_t vp8_pred16x16_prob_inter[4] = { 112, 86, 140, 37 };
static const int8_t vp8_pred4x4_tree[9][2] =
{
{ -DC_PRED, 1 }, // '0'
{ -TM_VP8_PRED, 2 }, // '10'
{ -VERT_PRED, 3 }, // '110'
{ 4, 6 },
{ -HOR_PRED, 5 }, // '11100'
{ -DIAG_DOWN_RIGHT_PRED, -VERT_RIGHT_PRED }, // '111010', '111011'
{ -DIAG_DOWN_LEFT_PRED, 7 }, // '11110'
{ -VERT_LEFT_PRED, 8 }, // '111110'
{ -HOR_DOWN_PRED, -HOR_UP_PRED }, // '1111110', '1111111'
};
static const int8_t vp8_pred8x8c_tree[3][2] =
{
{ -DC_PRED8x8, 1 }, // '0'
{ -VERT_PRED8x8, 2 }, // '10
{ -HOR_PRED8x8, -PLANE_PRED8x8 }, // '110', '111'
};
static const uint8_t vp8_pred8x8c_prob_intra[3] = { 142, 114, 183 };
static const uint8_t vp8_pred8x8c_prob_inter[3] = { 162, 101, 204 };
static const uint8_t vp8_pred4x4_prob_inter[9] =
{
120, 90, 79, 133, 87, 85, 80, 111, 151
};
static const uint8_t vp8_pred4x4_prob_intra[10][10][9] =
{
{
{ 39, 53, 200, 87, 26, 21, 43, 232, 171 },
{ 56, 34, 51, 104, 114, 102, 29, 93, 77 },
{ 88, 88, 147, 150, 42, 46, 45, 196, 205 },
{ 107, 54, 32, 26, 51, 1, 81, 43, 31 },
{ 39, 28, 85, 171, 58, 165, 90, 98, 64 },
{ 34, 22, 116, 206, 23, 34, 43, 166, 73 },
{ 34, 19, 21, 102, 132, 188, 16, 76, 124 },
{ 68, 25, 106, 22, 64, 171, 36, 225, 114 },
{ 62, 18, 78, 95, 85, 57, 50, 48, 51 },
{ 43, 97, 183, 117, 85, 38, 35, 179, 61 },
},
{
{ 112, 113, 77, 85, 179, 255, 38, 120, 114 },
{ 40, 42, 1, 196, 245, 209, 10, 25, 109 },
{ 193, 101, 35, 159, 215, 111, 89, 46, 111 },
{ 100, 80, 8, 43, 154, 1, 51, 26, 71 },
{ 88, 43, 29, 140, 166, 213, 37, 43, 154 },
{ 61, 63, 30, 155, 67, 45, 68, 1, 209 },
{ 41, 40, 5, 102, 211, 183, 4, 1, 221 },
{ 142, 78, 78, 16, 255, 128, 34, 197, 171 },
{ 51, 50, 17, 168, 209, 192, 23, 25, 82 },
{ 60, 148, 31, 172, 219, 228, 21, 18, 111 },
},
{
{ 175, 69, 143, 80, 85, 82, 72, 155, 103 },
{ 56, 58, 10, 171, 218, 189, 17, 13, 152 },
{ 231, 120, 48, 89, 115, 113, 120, 152, 112 },
{ 144, 71, 10, 38, 171, 213, 144, 34, 26 },
{ 114, 26, 17, 163, 44, 195, 21, 10, 173 },
{ 121, 24, 80, 195, 26, 62, 44, 64, 85 },
{ 63, 20, 8, 114, 114, 208, 12, 9, 226 },
{ 170, 46, 55, 19, 136, 160, 33, 206, 71 },
{ 81, 40, 11, 96, 182, 84, 29, 16, 36 },
{ 152, 179, 64, 126, 170, 118, 46, 70, 95 },
},
{
{ 75, 79, 123, 47, 51, 128, 81, 171, 1 },
{ 57, 17, 5, 71, 102, 57, 53, 41, 49 },
{ 125, 98, 42, 88, 104, 85, 117, 175, 82 },
{ 115, 21, 2, 10, 102, 255, 166, 23, 6 },
{ 38, 33, 13, 121, 57, 73, 26, 1, 85 },
{ 41, 10, 67, 138, 77, 110, 90, 47, 114 },
{ 57, 18, 10, 102, 102, 213, 34, 20, 43 },
{ 101, 29, 16, 10, 85, 128, 101, 196, 26 },
{ 117, 20, 15, 36, 163, 128, 68, 1, 26 },
{ 95, 84, 53, 89, 128, 100, 113, 101, 45 },
},
{
{ 63, 59, 90, 180, 59, 166, 93, 73, 154 },
{ 40, 40, 21, 116, 143, 209, 34, 39, 175 },
{ 138, 31, 36, 171, 27, 166, 38, 44, 229 },
{ 57, 46, 22, 24, 128, 1, 54, 17, 37 },
{ 47, 15, 16, 183, 34, 223, 49, 45, 183 },
{ 46, 17, 33, 183, 6, 98, 15, 32, 183 },
{ 40, 3, 9, 115, 51, 192, 18, 6, 223 },
{ 65, 32, 73, 115, 28, 128, 23, 128, 205 },
{ 87, 37, 9, 115, 59, 77, 64, 21, 47 },
{ 67, 87, 58, 169, 82, 115, 26, 59, 179 },
},
{
{ 54, 57, 112, 184, 5, 41, 38, 166, 213 },
{ 30, 34, 26, 133, 152, 116, 10, 32, 134 },
{ 104, 55, 44, 218, 9, 54, 53, 130, 226 },
{ 75, 32, 12, 51, 192, 255, 160, 43, 51 },
{ 39, 19, 53, 221, 26, 114, 32, 73, 255 },
{ 31, 9, 65, 234, 2, 15, 1, 118, 73 },
{ 56, 21, 23, 111, 59, 205, 45, 37, 192 },
{ 88, 31, 35, 67, 102, 85, 55, 186, 85 },
{ 55, 38, 70, 124, 73, 102, 1, 34, 98 },
{ 64, 90, 70, 205, 40, 41, 23, 26, 57 },
},
{
{ 86, 40, 64, 135, 148, 224, 45, 183, 128 },
{ 22, 26, 17, 131, 240, 154, 14, 1, 209 },
{ 164, 50, 31, 137, 154, 133, 25, 35, 218 },
{ 83, 12, 13, 54, 192, 255, 68, 47, 28 },
{ 45, 16, 21, 91, 64, 222, 7, 1, 197 },
{ 56, 21, 39, 155, 60, 138, 23, 102, 213 },
{ 18, 11, 7, 63, 144, 171, 4, 4, 246 },
{ 85, 26, 85, 85, 128, 128, 32, 146, 171 },
{ 35, 27, 10, 146, 174, 171, 12, 26, 128 },
{ 51, 103, 44, 131, 131, 123, 31, 6, 158 },
},
{
{ 68, 45, 128, 34, 1, 47, 11, 245, 171 },
{ 62, 17, 19, 70, 146, 85, 55, 62, 70 },
{ 102, 61, 71, 37, 34, 53, 31, 243, 192 },
{ 75, 15, 9, 9, 64, 255, 184, 119, 16 },
{ 37, 43, 37, 154, 100, 163, 85, 160, 1 },
{ 63, 9, 92, 136, 28, 64, 32, 201, 85 },
{ 56, 8, 17, 132, 137, 255, 55, 116, 128 },
{ 86, 6, 28, 5, 64, 255, 25, 248, 1 },
{ 58, 15, 20, 82, 135, 57, 26, 121, 40 },
{ 69, 60, 71, 38, 73, 119, 28, 222, 37 },
},
{
{ 101, 75, 128, 139, 118, 146, 116, 128, 85 },
{ 56, 41, 15, 176, 236, 85, 37, 9, 62 },
{ 190, 80, 35, 99, 180, 80, 126, 54, 45 },
{ 146, 36, 19, 30, 171, 255, 97, 27, 20 },
{ 71, 30, 17, 119, 118, 255, 17, 18, 138 },
{ 101, 38, 60, 138, 55, 70, 43, 26, 142 },
{ 32, 41, 20, 117, 151, 142, 20, 21, 163 },
{ 138, 45, 61, 62, 219, 1, 81, 188, 64 },
{ 112, 19, 12, 61, 195, 128, 48, 4, 24 },
{ 85, 126, 47, 87, 176, 51, 41, 20, 32 },
},
{
{ 66, 102, 167, 99, 74, 62, 40, 234, 128 },
{ 41, 53, 9, 178, 241, 141, 26, 8, 107 },
{ 134, 183, 89, 137, 98, 101, 106, 165, 148 },
{ 104, 79, 12, 27, 217, 255, 87, 17, 7 },
{ 74, 43, 26, 146, 73, 166, 49, 23, 157 },
{ 65, 38, 105, 160, 51, 52, 31, 115, 128 },
{ 47, 41, 14, 110, 182, 183, 21, 17, 194 },
{ 87, 68, 71, 44, 114, 51, 15, 186, 23 },
{ 66, 45, 25, 102, 197, 189, 23, 18, 22 },
{ 72, 187, 100, 130, 157, 111, 32, 75, 80 },
},
};
static const int8_t vp8_segmentid_tree[][2] =
{
{ 1, 2 },
{ -0, -1 }, // '00', '01'
{ -2, -3 }, // '10', '11'
};
static const uint8_t vp8_coeff_band[16] =
{
0, 1, 2, 3, 6, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7
};
static const int8_t vp8_coeff_tree[NUM_DCT_TOKENS-1][2] =
{
{ -DCT_EOB, 1 }, // '0'
{ -DCT_0, 2 }, // '10'
{ -DCT_1, 3 }, // '110'
{ 4, 6 },
{ -DCT_2, 5 }, // '11100'
{ -DCT_3, -DCT_4 }, // '111010', '111011'
{ 7, 8 },
{ -DCT_CAT1, -DCT_CAT2 }, // '111100', '111101'
{ 9, 10 },
{ -DCT_CAT3, -DCT_CAT4 }, // '1111100', '1111101'
{ -DCT_CAT5, -DCT_CAT6 }, // '1111110', '1111111'
};
static const uint8_t vp8_dct_cat1_prob[] = { 159, 0 };
static const uint8_t vp8_dct_cat2_prob[] = { 165, 145, 0 };
static const uint8_t vp8_dct_cat3_prob[] = { 173, 148, 140, 0 };
static const uint8_t vp8_dct_cat4_prob[] = { 176, 155, 140, 135, 0 };
static const uint8_t vp8_dct_cat5_prob[] = { 180, 157, 141, 134, 130, 0 };
static const uint8_t vp8_dct_cat6_prob[] = { 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129, 0 };
static const uint8_t * const vp8_dct_cat_prob[6] =
{
vp8_dct_cat1_prob,
vp8_dct_cat2_prob,
vp8_dct_cat3_prob,
vp8_dct_cat4_prob,
vp8_dct_cat5_prob,
vp8_dct_cat6_prob,
};
static const uint8_t vp8_dct_cat_offset[6] = { 5, 7, 11, 19, 35, 67 };
static const uint8_t vp8_token_default_probs[4][8][3][NUM_DCT_TOKENS-1] =
{
{
{
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
},
{
{ 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
{ 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
{ 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 },
},
{
{ 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
{ 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
{ 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 },
},
{
{ 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
{ 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
{ 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 },
},
{
{ 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
{ 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
{ 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 },
},
{
{ 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
{ 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
{ 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 },
},
{
{ 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
{ 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
{ 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 },
},
{
{ 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
},
},
{
{
{ 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 },
{ 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 },
{ 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 },
},
{
{ 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
{ 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
{ 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 },
},
{
{ 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
{ 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
{ 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 },
},
{
{ 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
{ 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
{ 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 },
},
{
{ 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
{ 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
{ 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 },
},
{
{ 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
{ 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
{ 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 },
},
{
{ 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
{ 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
{ 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 },
},
{
{ 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
{ 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 },
},
},
{
{
{ 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
{ 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
{ 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 },
},
{
{ 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
{ 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
{ 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 },
},
{
{ 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
{ 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
{ 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 },
},
{
{ 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
{ 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
},
{
{ 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
{ 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
},
{
{ 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
},
{
{ 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
},
{
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
},
},
{
{
{ 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
{ 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
{ 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 },
},
{
{ 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
{ 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
{ 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 },
},
{
{ 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
{ 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
{ 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 },
},
{
{ 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
{ 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
{ 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 },
},
{
{ 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
{ 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
{ 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 },
},
{
{ 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
{ 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
{ 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 },
},
{
{ 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
{ 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
{ 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 },
},
{
{ 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
},
},
};
static const uint8_t vp8_token_update_probs[4][8][3][NUM_DCT_TOKENS-1] =
{
{
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
},
{
{
{ 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 },
{ 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 },
},
{
{ 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
},
{
{
{ 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 },
},
{
{ 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
},
{
{
{ 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 },
{ 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
{
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
},
},
};
// fixme: copied from h264data.h
static const uint8_t zigzag_scan[16]={
0+0*4, 1+0*4, 0+1*4, 0+2*4,
1+1*4, 2+0*4, 3+0*4, 2+1*4,
1+2*4, 0+3*4, 1+3*4, 2+2*4,
3+1*4, 3+2*4, 2+3*4, 3+3*4,
};
static const uint8_t vp8_dc_qlookup[VP8_MAX_QUANT+1] =
{
4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
18, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
75, 76, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
91, 93, 95, 96, 98, 100, 101, 102, 104, 106, 108, 110, 112, 114, 116, 118,
122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 143, 145, 148, 151, 154, 157,
};
static const uint16_t vp8_ac_qlookup[VP8_MAX_QUANT+1] =
{
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
52, 53, 54, 55, 56, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76,
78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108,
110, 112, 114, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152,
155, 158, 161, 164, 167, 170, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209,
213, 217, 221, 225, 229, 234, 239, 245, 249, 254, 259, 264, 269, 274, 279, 284,
};
static const uint8_t vp8_mv_update_prob[2][19] = {
{ 237,
246,
253, 253, 254, 254, 254, 254, 254,
254, 254, 254, 254, 254, 250, 250, 252, 254, 254 },
{ 231,
243,
245, 253, 254, 254, 254, 254, 254,
254, 254, 254, 254, 254, 251, 251, 254, 254, 254 }
};
static const uint8_t vp8_mv_default_prob[2][19] = {
{ 162,
128,
225, 146, 172, 147, 214, 39, 156,
128, 129, 132, 75, 145, 178, 206, 239, 254, 254 },
{ 164,
128,
204, 170, 119, 235, 140, 230, 228,
128, 130, 130, 74, 148, 180, 203, 236, 254, 254 }
};
libavcodec/vp8dsp.c 0 → 100644
View file @ 3b636f21
/**
* VP8 compatible video decoder
*
* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
*
* 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 "vp8dsp.h"
// TODO: Maybe add dequant
static void vp8_luma_dc_wht_c(DCTELEM block[4][4][16], DCTELEM dc[16])
{
int i, t0, t1, t2, t3;
for (i = 0; i < 4; i++) {
t0 = dc[0*4+i] + dc[3*4+i];
t1 = dc[1*4+i] + dc[2*4+i];
t2 = dc[1*4+i] - dc[2*4+i];
t3 = dc[0*4+i] - dc[3*4+i];
dc[0*4+i] = t0 + t1;
dc[1*4+i] = t3 + t2;
dc[2*4+i] = t0 - t1;
dc[3*4+i] = t3 - t2;
}
for (i = 0; i < 4; i++) {
t0 = dc[i*4+0] + dc[i*4+3] + 3; // rounding
t1 = dc[i*4+1] + dc[i*4+2];
t2 = dc[i*4+1] - dc[i*4+2];
t3 = dc[i*4+0] - dc[i*4+3] + 3; // rounding
*block[i][0] = (t0 + t1) >> 3;
*block[i][1] = (t3 + t2) >> 3;
*block[i][2] = (t0 - t1) >> 3;
*block[i][3] = (t3 - t2) >> 3;
}
}
#define MUL_20091(a) ((((a)*20091) >> 16) + (a))
#define MUL_35468(a) (((a)*35468) >> 16)
static void vp8_idct_add_c(uint8_t *dst, DCTELEM block[16], int stride)
{
int i, t0, t1, t2, t3;
DCTELEM tmp[16];
for (i = 0; i < 4; i++) {
t0 = block[0*4+i] + block[2*4+i];
t1 = block[0*4+i] - block[2*4+i];
t2 = MUL_35468(block[1*4+i]) - MUL_20091(block[3*4+i]);
t3 = MUL_20091(block[1*4+i]) + MUL_35468(block[3*4+i]);
tmp[i*4+0] = t0 + t3;
tmp[i*4+1] = t1 + t2;
tmp[i*4+2] = t1 - t2;
tmp[i*4+3] = t0 - t3;
}
for (i = 0; i < 4; i++) {
t0 = tmp[0*4+i] + tmp[2*4+i];
t1 = tmp[0*4+i] - tmp[2*4+i];
t2 = MUL_35468(tmp[1*4+i]) - MUL_20091(tmp[3*4+i]);
t3 = MUL_20091(tmp[1*4+i]) + MUL_35468(tmp[3*4+i]);
dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
dst += stride;
}
}
static void vp8_idct_dc_add_c(uint8_t *dst, DCTELEM block[16], int stride)
{
int i, dc = (block[0] + 4) >> 3;
for (i = 0; i < 4; i++) {
dst[0] = av_clip_uint8(dst[0] + dc);
dst[1] = av_clip_uint8(dst[1] + dc);
dst[2] = av_clip_uint8(dst[2] + dc);
dst[3] = av_clip_uint8(dst[3] + dc);
dst += stride;
}
}
// because I like only having two parameters to pass functions...
#define LOAD_PIXELS\
int av_unused p3 = p[-4*stride];\
int av_unused p2 = p[-3*stride];\
int av_unused p1 = p[-2*stride];\
int av_unused p0 = p[-1*stride];\
int av_unused q0 = p[ 0*stride];\
int av_unused q1 = p[ 1*stride];\
int av_unused q2 = p[ 2*stride];\
int av_unused q3 = p[ 3*stride];
static av_always_inline void filter_common(uint8_t *p, int stride, int is4tap)
{
LOAD_PIXELS
int a, f1, f2;
a = 3*(q0 - p0);
if (is4tap)
a += av_clip_int8(p1 - q1);
a = av_clip_int8(a);
// We deviate from the spec here with c(a+3) >> 3
// since that's what libvpx does.
f1 = FFMIN(a+4, 127) >> 3;
f2 = FFMIN(a+3, 127) >> 3;
// Despite what the spec says, we do need to clamp here to
// be bitexact with libvpx.
p[-1*stride] = av_clip_uint8(p0 + f2);
p[ 0*stride] = av_clip_uint8(q0 - f1);
// only used for _inner on blocks without high edge variance
if (!is4tap) {
a = (f1+1)>>1;
p[-2*stride] = av_clip_uint8(p1 + a);
p[ 1*stride] = av_clip_uint8(q1 - a);
}
}
static av_always_inline int simple_limit(uint8_t *p, int stride, int flim)
{
LOAD_PIXELS
return 2*FFABS(p0-q0) + (FFABS(p1-q1) >> 1) <= flim;
}
/**
* E - limit at the macroblock edge
* I - limit for interior difference
*/
static av_always_inline int normal_limit(uint8_t *p, int stride, int E, int I)
{
LOAD_PIXELS
return simple_limit(p, stride, 2*E+I)
&& FFABS(p3-p2) <= I && FFABS(p2-p1) <= I && FFABS(p1-p0) <= I
&& FFABS(q3-q2) <= I && FFABS(q2-q1) <= I && FFABS(q1-q0) <= I;
}
// high edge variance
static av_always_inline int hev(uint8_t *p, int stride, int thresh)
{
LOAD_PIXELS
return FFABS(p1-p0) > thresh || FFABS(q1-q0) > thresh;
}
static av_always_inline void filter_mbedge(uint8_t *p, int stride)
{
int a0, a1, a2, w;
LOAD_PIXELS
w = av_clip_int8(p1-q1);
w = av_clip_int8(w + 3*(q0-p0));
a0 = (27*w + 63) >> 7;
a1 = (18*w + 63) >> 7;
a2 = ( 9*w + 63) >> 7;
p[-3*stride] = av_clip_uint8(p2 + a2);
p[-2*stride] = av_clip_uint8(p1 + a1);
p[-1*stride] = av_clip_uint8(p0 + a0);
p[ 0*stride] = av_clip_uint8(q0 - a0);
p[ 1*stride] = av_clip_uint8(q1 - a1);
p[ 2*stride] = av_clip_uint8(q2 - a2);
}
#define LOOP_FILTER(dir, size, stridea, strideb) \
static void vp8_ ## dir ## _loop_filter ## size ## _c(uint8_t *dst, int stride,\
int flim_E, int flim_I, int hev_thresh)\
{\
int i;\
\
for (i = 0; i < size; i++)\
if (normal_limit(dst+i*stridea, strideb, flim_E, flim_I)) {\
if (hev(dst+i*stridea, strideb, hev_thresh))\
filter_common(dst+i*stridea, strideb, 1);\
else\
filter_mbedge(dst+i*stridea, strideb);\
}\
}\
\
static void vp8_ ## dir ## _loop_filter ## size ## _inner_c(uint8_t *dst, int stride,\
int flim_E, int flim_I, int hev_thresh)\
{\
int i, hv;\
\
for (i = 0; i < size; i++)\
if (normal_limit(dst+i*stridea, strideb, flim_E, flim_I)) {\
hv = hev(dst+i*stridea, strideb, hev_thresh);\
filter_common(dst+i*stridea, strideb, hv);\
}\
}
LOOP_FILTER(v, 16, 1, stride)
LOOP_FILTER(h, 16, stride, 1)
LOOP_FILTER(v, 8, 1, stride)
LOOP_FILTER(h, 8, stride, 1)
static void vp8_v_loop_filter_simple_c(uint8_t *dst, int stride, int flim)
{
int i;
for (i = 0; i < 16; i++)
if (simple_limit(dst+i, stride, flim))
filter_common(dst+i, stride, 1);
}
static void vp8_h_loop_filter_simple_c(uint8_t *dst, int stride, int flim)
{
int i;
for (i = 0; i < 16; i++)
if (simple_limit(dst+i*stride, 1, flim))
filter_common(dst+i*stride, 1, 1);
}
static const uint8_t subpel_filters[7][6] = {
{ 0, 6, 123, 12, 1, 0 },
{ 2, 11, 108, 36, 8, 1 },
{ 0, 9, 93, 50, 6, 0 },
{ 3, 16, 77, 77, 16, 3 },
{ 0, 6, 50, 93, 9, 0 },
{ 1, 8, 36, 108, 11, 2 },
{ 0, 1, 12, 123, 6, 0 },
};
#define FILTER_6TAP(src, F, stride) \
av_clip_uint8((F[2]*src[x+0*stride] - F[1]*src[x-1*stride] + F[0]*src[x-2*stride] + \
F[3]*src[x+1*stride] - F[4]*src[x+2*stride] + F[5]*src[x+3*stride] + 64) >> 7)
#define FILTER_4TAP(src, F, stride) \
av_clip_uint8((F[2]*src[x+0*stride] - F[1]*src[x-1*stride] + \
F[3]*src[x+1*stride] - F[4]*src[x+2*stride] + 64) >> 7)
#define VP8_EPEL_H(SIZE, FILTER, FILTERNAME) \
static void put_vp8_epel ## SIZE ## _ ## FILTERNAME ## _c(uint8_t *dst, uint8_t *src, int stride, int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[mx-1]; \
int x, y; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER(src, filter, 1); \
dst += stride; \
src += stride; \
} \
}
#define VP8_EPEL_V(SIZE, FILTER, FILTERNAME) \
static void put_vp8_epel ## SIZE ## _ ## FILTERNAME ## _c(uint8_t *dst, uint8_t *src, int stride, int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[my-1]; \
int x, y; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTER(src, filter, stride); \
dst += stride; \
src += stride; \
} \
}
#define VP8_EPEL_HV(SIZE, FILTERX, FILTERY, FILTERNAME) \
static void put_vp8_epel ## SIZE ## _ ## FILTERNAME ## _c(uint8_t *dst, uint8_t *src, int stride, int h, int mx, int my) \
{ \
const uint8_t *filter = subpel_filters[mx-1]; \
int x, y; \
uint8_t tmp_array[(2*SIZE+5)*SIZE]; \
uint8_t *tmp = tmp_array; \
src -= 2*stride; \
\
for (y = 0; y < h+5; y++) { \
for (x = 0; x < SIZE; x++) \
tmp[x] = FILTERX(src, filter, 1); \
tmp += SIZE; \
src += stride; \
} \
\
tmp = tmp_array + 2*SIZE; \
filter = subpel_filters[my-1]; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = FILTERY(tmp, filter, SIZE); \
dst += stride; \
tmp += SIZE; \
} \
}
VP8_EPEL_H(16, FILTER_4TAP, h4)
VP8_EPEL_H(8, FILTER_4TAP, h4)
VP8_EPEL_H(4, FILTER_4TAP, h4)
VP8_EPEL_H(16, FILTER_6TAP, h6)
VP8_EPEL_H(8, FILTER_6TAP, h6)
VP8_EPEL_H(4, FILTER_6TAP, h6)
VP8_EPEL_V(16, FILTER_4TAP, v4)
VP8_EPEL_V(8, FILTER_4TAP, v4)
VP8_EPEL_V(4, FILTER_4TAP, v4)
VP8_EPEL_V(16, FILTER_6TAP, v6)
VP8_EPEL_V(8, FILTER_6TAP, v6)
VP8_EPEL_V(4, FILTER_6TAP, v6)
VP8_EPEL_HV(16, FILTER_4TAP, FILTER_4TAP, h4v4)
VP8_EPEL_HV(8, FILTER_4TAP, FILTER_4TAP, h4v4)
VP8_EPEL_HV(4, FILTER_4TAP, FILTER_4TAP, h4v4)
VP8_EPEL_HV(16, FILTER_4TAP, FILTER_6TAP, h4v6)
VP8_EPEL_HV(8, FILTER_4TAP, FILTER_6TAP, h4v6)
VP8_EPEL_HV(4, FILTER_4TAP, FILTER_6TAP, h4v6)
VP8_EPEL_HV(16, FILTER_6TAP, FILTER_4TAP, h6v4)
VP8_EPEL_HV(8, FILTER_6TAP, FILTER_4TAP, h6v4)
VP8_EPEL_HV(4, FILTER_6TAP, FILTER_4TAP, h6v4)
VP8_EPEL_HV(16, FILTER_6TAP, FILTER_6TAP, h6v6)
VP8_EPEL_HV(8, FILTER_6TAP, FILTER_6TAP, h6v6)
VP8_EPEL_HV(4, FILTER_6TAP, FILTER_6TAP, h6v6)
#define VP8_MC_FUNC(IDX, SIZE) \
dsp->put_vp8_epel_pixels_tab[IDX][0][0] = ff_put_vp8_pixels ## SIZE ## _c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][0][2] = put_vp8_epel ## SIZE ## _h6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][0] = put_vp8_epel ## SIZE ## _v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][1] = put_vp8_epel ## SIZE ## _h4v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][1][2] = put_vp8_epel ## SIZE ## _h6v4_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][0] = put_vp8_epel ## SIZE ## _v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c
av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
{
dsp->vp8_luma_dc_wht = vp8_luma_dc_wht_c;
dsp->vp8_idct_add = vp8_idct_add_c;
dsp->vp8_idct_dc_add = vp8_idct_dc_add_c;
dsp->vp8_v_loop_filter16 = vp8_v_loop_filter16_c;
dsp->vp8_h_loop_filter16 = vp8_h_loop_filter16_c;
dsp->vp8_v_loop_filter8 = vp8_v_loop_filter8_c;
dsp->vp8_h_loop_filter8 = vp8_h_loop_filter8_c;
dsp->vp8_v_loop_filter16_inner = vp8_v_loop_filter16_inner_c;
dsp->vp8_h_loop_filter16_inner = vp8_h_loop_filter16_inner_c;
dsp->vp8_v_loop_filter8_inner = vp8_v_loop_filter8_inner_c;
dsp->vp8_h_loop_filter8_inner = vp8_h_loop_filter8_inner_c;
dsp->vp8_v_loop_filter_simple = vp8_v_loop_filter_simple_c;
dsp->vp8_h_loop_filter_simple = vp8_h_loop_filter_simple_c;
VP8_MC_FUNC(0, 16);
VP8_MC_FUNC(1, 8);
VP8_MC_FUNC(2, 4);
}
libavcodec/vp8dsp.h 0 → 100644
View file @ 3b636f21
/**
* VP8 compatible video decoder
*
* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
*
* 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_VP8DSP_H
#define AVCODEC_VP8DSP_H
#include "dsputil.h"
typedef struct VP8DSPContext {
void (*vp8_luma_dc_wht)(DCTELEM block[4][4][16], DCTELEM dc[16]);
void (*vp8_idct_add)(uint8_t *dst, DCTELEM block[16], int stride);
void (*vp8_idct_dc_add)(uint8_t *dst, DCTELEM block[16], int stride);
// loop filter applied to edges between macroblocks
void (*vp8_v_loop_filter16)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_h_loop_filter16)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_v_loop_filter8)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_h_loop_filter8)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
// loop filter applied to inner macroblock edges
void (*vp8_v_loop_filter16_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_h_loop_filter16_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_v_loop_filter8_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_h_loop_filter8_inner)(uint8_t *dst, int stride, int flim_E, int flim_I, int hev_thresh);
void (*vp8_v_loop_filter_simple)(uint8_t *dst, int stride, int flim);
void (*vp8_h_loop_filter_simple)(uint8_t *dst, int stride, int flim);
/**
* first dimension: width>>3, height is assumed equal to width
* second dimension: 0 if no vertical interpolation is needed;
* 1 4-tap vertical interpolation filter (my & 1)
* 2 6-tap vertical interpolation filter (!(my & 1))
* third dimension: same as second dimention, for horizontal interpolation
* so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
*/
h264_chroma_mc_func put_vp8_epel_pixels_tab[3][3][3];
} VP8DSPContext;
void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y);
void ff_vp8dsp_init(VP8DSPContext *c);
#endif /* AVCODEC_VP8DSP_H */
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