lavc: split asv12 encoder/decoder

libavcodec/Makefile

@@ -99,10 +99,10 @@ OBJS-$(CONFIG_ANSI_DECODER)            += ansi.o cga_data.o
 OBJS-$(CONFIG_APE_DECODER)             += apedec.o
 OBJS-$(CONFIG_ASS_DECODER)             += assdec.o ass.o
 OBJS-$(CONFIG_ASS_ENCODER)             += assenc.o ass.o
-OBJS-$(CONFIG_ASV1_DECODER)            += asv1.o mpeg12data.o
-OBJS-$(CONFIG_ASV1_ENCODER)            += asv1.o mpeg12data.o
-OBJS-$(CONFIG_ASV2_DECODER)            += asv1.o mpeg12data.o
-OBJS-$(CONFIG_ASV2_ENCODER)            += asv1.o mpeg12data.o
+OBJS-$(CONFIG_ASV1_DECODER)            += asvdec.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ASV1_ENCODER)            += asvenc.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ASV2_DECODER)            += asvdec.o asv.o mpeg12data.o
+OBJS-$(CONFIG_ASV2_ENCODER)            += asvenc.o asv.o mpeg12data.o
 OBJS-$(CONFIG_ATRAC1_DECODER)          += atrac1.o atrac.o
 OBJS-$(CONFIG_ATRAC3_DECODER)          += atrac3.o atrac.o
 OBJS-$(CONFIG_AURA_DECODER)            += cyuv.o

libavcodec/asv.c

+/*
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * ASUS V1/V2 encoder/decoder common data
+ */
+
+#include <stdint.h>
+
+#include "asv.h"
+#include "avcodec.h"
+#include "dsputil.h"
+
+const uint8_t ff_asv_scantab[64] = {
+    0x00,0x08,0x01,0x09,0x10,0x18,0x11,0x19,
+    0x02,0x0A,0x03,0x0B,0x12,0x1A,0x13,0x1B,
+    0x04,0x0C,0x05,0x0D,0x20,0x28,0x21,0x29,
+    0x06,0x0E,0x07,0x0F,0x14,0x1C,0x15,0x1D,
+    0x22,0x2A,0x23,0x2B,0x30,0x38,0x31,0x39,
+    0x16,0x1E,0x17,0x1F,0x24,0x2C,0x25,0x2D,
+    0x32,0x3A,0x33,0x3B,0x26,0x2E,0x27,0x2F,
+    0x34,0x3C,0x35,0x3D,0x36,0x3E,0x37,0x3F,
+};
+
+const uint8_t ff_asv_ccp_tab[17][2] = {
+    {0x2,2}, {0x7,5}, {0xB,5}, {0x3,5},
+    {0xD,5}, {0x5,5}, {0x9,5}, {0x1,5},
+    {0xE,5}, {0x6,5}, {0xA,5}, {0x2,5},
+    {0xC,5}, {0x4,5}, {0x8,5}, {0x3,2},
+    {0xF,5}, //EOB
+};
+
+const uint8_t ff_asv_level_tab[7][2] = {
+    {3,4}, {3,3}, {3,2}, {0,3}, {2,2}, {2,3}, {2,4}
+};
+
+const uint8_t ff_asv_dc_ccp_tab[8][2] = {
+    {0x1,2}, {0xD,4}, {0xF,4}, {0xC,4},
+    {0x5,3}, {0xE,4}, {0x4,3}, {0x0,2},
+};
+
+const uint8_t ff_asv_ac_ccp_tab[16][2] = {
+    {0x00,2}, {0x3B,6}, {0x0A,4}, {0x3A,6},
+    {0x02,3}, {0x39,6}, {0x3C,6}, {0x38,6},
+    {0x03,3}, {0x3D,6}, {0x08,4}, {0x1F,5},
+    {0x09,4}, {0x0B,4}, {0x0D,4}, {0x0C,4},
+};
+
+const uint8_t ff_asv2_level_tab[63][2] = {
+    {0x3F,10},{0x2F,10},{0x37,10},{0x27,10},{0x3B,10},{0x2B,10},{0x33,10},{0x23,10},
+    {0x3D,10},{0x2D,10},{0x35,10},{0x25,10},{0x39,10},{0x29,10},{0x31,10},{0x21,10},
+    {0x1F, 8},{0x17, 8},{0x1B, 8},{0x13, 8},{0x1D, 8},{0x15, 8},{0x19, 8},{0x11, 8},
+    {0x0F, 6},{0x0B, 6},{0x0D, 6},{0x09, 6},
+    {0x07, 4},{0x05, 4},
+    {0x03, 2},
+    {0x00, 5},
+    {0x02, 2},
+    {0x04, 4},{0x06, 4},
+    {0x08, 6},{0x0C, 6},{0x0A, 6},{0x0E, 6},
+    {0x10, 8},{0x18, 8},{0x14, 8},{0x1C, 8},{0x12, 8},{0x1A, 8},{0x16, 8},{0x1E, 8},
+    {0x20,10},{0x30,10},{0x28,10},{0x38,10},{0x24,10},{0x34,10},{0x2C,10},{0x3C,10},
+    {0x22,10},{0x32,10},{0x2A,10},{0x3A,10},{0x26,10},{0x36,10},{0x2E,10},{0x3E,10},
+};
+
+av_cold void ff_asv_common_init(AVCodecContext *avctx) {
+    ASV1Context * const a = avctx->priv_data;
+
+    ff_dsputil_init(&a->dsp, avctx);
+
+    a->mb_width   = (avctx->width  + 15) / 16;
+    a->mb_height  = (avctx->height + 15) / 16;
+    a->mb_width2  = (avctx->width  + 0) / 16;
+    a->mb_height2 = (avctx->height + 0) / 16;
+
+    avctx->coded_frame= &a->picture;
+    a->avctx= avctx;
+}

libavcodec/asv.h

+/*
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * ASUS V1/V2 encoder/decoder common data.
+ */
+
+#ifndef AVCODEC_ASV_H
+#define AVCODEC_ASV_H
+
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/mem.h"
+
+#include "avcodec.h"
+#include "dsputil.h"
+#include "get_bits.h"
+#include "put_bits.h"
+
+typedef struct ASV1Context{
+    AVCodecContext *avctx;
+    DSPContext dsp;
+    AVFrame picture;
+    PutBitContext pb;
+    GetBitContext gb;
+    ScanTable scantable;
+    int inv_qscale;
+    int mb_width;
+    int mb_height;
+    int mb_width2;
+    int mb_height2;
+    DECLARE_ALIGNED(16, DCTELEM, block)[6][64];
+    uint16_t intra_matrix[64];
+    int q_intra_matrix[64];
+    uint8_t *bitstream_buffer;
+    unsigned int bitstream_buffer_size;
+} ASV1Context;
+
+extern const uint8_t ff_asv_scantab[64];
+extern const uint8_t ff_asv_ccp_tab[17][2];
+extern const uint8_t ff_asv_level_tab[7][2];
+extern const uint8_t ff_asv_dc_ccp_tab[8][2];
+extern const uint8_t ff_asv_ac_ccp_tab[16][2];
+extern const uint8_t ff_asv2_level_tab[63][2];
+
+av_cold void ff_asv_common_init(AVCodecContext *avctx);
+
+#endif /* AVCODEC_ASV_H */

libavcodec/asvenc.c

+/*
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * ASUS V1/V2 encoder.
+ */
+
+#include "libavutil/common.h"
+#include "libavutil/mem.h"
+
+#include "asv.h"
+#include "avcodec.h"
+#include "mpeg12data.h"
+
+static inline void asv2_put_bits(PutBitContext *pb, int n, int v){
+    put_bits(pb, n, av_reverse[ v << (8-n) ]);
+}
+
+static inline void asv1_put_level(PutBitContext *pb, int level){
+    unsigned int index= level + 3;
+
+    if(index <= 6) put_bits(pb, ff_asv_level_tab[index][1], ff_asv_level_tab[index][0]);
+    else{
+        put_bits(pb, ff_asv_level_tab[3][1], ff_asv_level_tab[3][0]);
+        put_sbits(pb, 8, level);
+    }
+}
+
+static inline void asv2_put_level(PutBitContext *pb, int level){
+    unsigned int index= level + 31;
+
+    if(index <= 62) put_bits(pb, ff_asv2_level_tab[index][1], ff_asv2_level_tab[index][0]);
+    else{
+        put_bits(pb, ff_asv2_level_tab[31][1], ff_asv2_level_tab[31][0]);
+        asv2_put_bits(pb, 8, level&0xFF);
+    }
+}
+
+static inline void asv1_encode_block(ASV1Context *a, DCTELEM block[64]){
+    int i;
+    int nc_count=0;
+
+    put_bits(&a->pb, 8, (block[0] + 32)>>6);
+    block[0]= 0;
+
+    for(i=0; i<10; i++){
+        const int index = ff_asv_scantab[4*i];
+        int ccp=0;
+
+        if( (block[index + 0] = (block[index + 0]*a->q_intra_matrix[index + 0] + (1<<15))>>16) ) ccp |= 8;
+        if( (block[index + 8] = (block[index + 8]*a->q_intra_matrix[index + 8] + (1<<15))>>16) ) ccp |= 4;
+        if( (block[index + 1] = (block[index + 1]*a->q_intra_matrix[index + 1] + (1<<15))>>16) ) ccp |= 2;
+        if( (block[index + 9] = (block[index + 9]*a->q_intra_matrix[index + 9] + (1<<15))>>16) ) ccp |= 1;
+
+        if(ccp){
+            for(;nc_count; nc_count--)
+                put_bits(&a->pb, ff_asv_ccp_tab[0][1], ff_asv_ccp_tab[0][0]);
+
+            put_bits(&a->pb, ff_asv_ccp_tab[ccp][1], ff_asv_ccp_tab[ccp][0]);
+
+            if(ccp&8) asv1_put_level(&a->pb, block[index + 0]);
+            if(ccp&4) asv1_put_level(&a->pb, block[index + 8]);
+            if(ccp&2) asv1_put_level(&a->pb, block[index + 1]);
+            if(ccp&1) asv1_put_level(&a->pb, block[index + 9]);
+        }else{
+            nc_count++;
+        }
+    }
+    put_bits(&a->pb, ff_asv_ccp_tab[16][1], ff_asv_ccp_tab[16][0]);
+}
+
+static inline void asv2_encode_block(ASV1Context *a, DCTELEM block[64]){
+    int i;
+    int count=0;
+
+    for(count=63; count>3; count--){
+        const int index = ff_asv_scantab[count];
+
+        if( (block[index]*a->q_intra_matrix[index] + (1<<15))>>16 )
+            break;
+    }
+
+    count >>= 2;
+
+    asv2_put_bits(&a->pb, 4, count);
+    asv2_put_bits(&a->pb, 8, (block[0] + 32)>>6);
+    block[0]= 0;
+
+    for(i=0; i<=count; i++){
+        const int index = ff_asv_scantab[4*i];
+        int ccp=0;
+
+        if( (block[index + 0] = (block[index + 0]*a->q_intra_matrix[index + 0] + (1<<15))>>16) ) ccp |= 8;
+        if( (block[index + 8] = (block[index + 8]*a->q_intra_matrix[index + 8] + (1<<15))>>16) ) ccp |= 4;
+        if( (block[index + 1] = (block[index + 1]*a->q_intra_matrix[index + 1] + (1<<15))>>16) ) ccp |= 2;
+        if( (block[index + 9] = (block[index + 9]*a->q_intra_matrix[index + 9] + (1<<15))>>16) ) ccp |= 1;
+
+        assert(i || ccp<8);
+        if(i) put_bits(&a->pb, ff_asv_ac_ccp_tab[ccp][1], ff_asv_ac_ccp_tab[ccp][0]);
+        else  put_bits(&a->pb, ff_asv_dc_ccp_tab[ccp][1], ff_asv_dc_ccp_tab[ccp][0]);
+
+        if(ccp){
+            if(ccp&8) asv2_put_level(&a->pb, block[index + 0]);
+            if(ccp&4) asv2_put_level(&a->pb, block[index + 8]);
+            if(ccp&2) asv2_put_level(&a->pb, block[index + 1]);
+            if(ccp&1) asv2_put_level(&a->pb, block[index + 9]);
+        }
+    }
+}
+
+#define MAX_MB_SIZE (30*16*16*3/2/8)
+
+static inline int encode_mb(ASV1Context *a, DCTELEM block[6][64]){
+    int i;
+
+    if (a->pb.buf_end - a->pb.buf - (put_bits_count(&a->pb)>>3) < MAX_MB_SIZE) {
+        av_log(a->avctx, AV_LOG_ERROR, "encoded frame too large\n");
+        return -1;
+    }
+
+    if(a->avctx->codec_id == AV_CODEC_ID_ASV1){
+        for(i=0; i<6; i++)
+            asv1_encode_block(a, block[i]);
+    }else{
+        for(i=0; i<6; i++)
+            asv2_encode_block(a, block[i]);
+    }
+    return 0;
+}
+
+static inline void dct_get(ASV1Context *a, int mb_x, int mb_y){
+    DCTELEM (*block)[64]= a->block;
+    int linesize= a->picture.linesize[0];
+    int i;
+
+    uint8_t *ptr_y  = a->picture.data[0] + (mb_y * 16* linesize              ) + mb_x * 16;
+    uint8_t *ptr_cb = a->picture.data[1] + (mb_y * 8 * a->picture.linesize[1]) + mb_x * 8;
+    uint8_t *ptr_cr = a->picture.data[2] + (mb_y * 8 * a->picture.linesize[2]) + mb_x * 8;
+
+    a->dsp.get_pixels(block[0], ptr_y                 , linesize);
+    a->dsp.get_pixels(block[1], ptr_y              + 8, linesize);
+    a->dsp.get_pixels(block[2], ptr_y + 8*linesize    , linesize);
+    a->dsp.get_pixels(block[3], ptr_y + 8*linesize + 8, linesize);
+    for(i=0; i<4; i++)
+        a->dsp.fdct(block[i]);
+
+    if(!(a->avctx->flags&CODEC_FLAG_GRAY)){
+        a->dsp.get_pixels(block[4], ptr_cb, a->picture.linesize[1]);
+        a->dsp.get_pixels(block[5], ptr_cr, a->picture.linesize[2]);
+        for(i=4; i<6; i++)
+            a->dsp.fdct(block[i]);
+    }
+}
+
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                        const AVFrame *pict, int *got_packet)
+{
+    ASV1Context * const a = avctx->priv_data;
+    AVFrame * const p= &a->picture;
+    int size, ret;
+    int mb_x, mb_y;
+
+    if (!pkt->data &&
+        (ret = av_new_packet(pkt, a->mb_height*a->mb_width*MAX_MB_SIZE +
+                                  FF_MIN_BUFFER_SIZE)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
+        return ret;
+    }
+
+    init_put_bits(&a->pb, pkt->data, pkt->size);
+
+    *p = *pict;
+    p->pict_type= AV_PICTURE_TYPE_I;
+    p->key_frame= 1;
+
+    for(mb_y=0; mb_y<a->mb_height2; mb_y++){
+        for(mb_x=0; mb_x<a->mb_width2; mb_x++){
+            dct_get(a, mb_x, mb_y);
+            encode_mb(a, a->block);
+        }
+    }
+
+    if(a->mb_width2 != a->mb_width){
+        mb_x= a->mb_width2;
+        for(mb_y=0; mb_y<a->mb_height2; mb_y++){
+            dct_get(a, mb_x, mb_y);
+            encode_mb(a, a->block);
+        }
+    }
+
+    if(a->mb_height2 != a->mb_height){
+        mb_y= a->mb_height2;
+        for(mb_x=0; mb_x<a->mb_width; mb_x++){
+            dct_get(a, mb_x, mb_y);
+            encode_mb(a, a->block);
+        }
+    }
+    emms_c();
+
+    avpriv_align_put_bits(&a->pb);
+    while(put_bits_count(&a->pb)&31)
+        put_bits(&a->pb, 8, 0);
+
+    size= put_bits_count(&a->pb)/32;
+
+    if(avctx->codec_id == AV_CODEC_ID_ASV1)
+        a->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size);
+    else{
+        int i;
+        for(i=0; i<4*size; i++)
+            pkt->data[i] = av_reverse[pkt->data[i]];
+    }
+
+    pkt->size   = size*4;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
+}
+
+static av_cold int encode_init(AVCodecContext *avctx){
+    ASV1Context * const a = avctx->priv_data;
+    int i;
+    const int scale= avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2;
+
+    ff_asv_common_init(avctx);
+
+    if(avctx->global_quality == 0) avctx->global_quality= 4*FF_QUALITY_SCALE;
+
+    a->inv_qscale= (32*scale*FF_QUALITY_SCALE +  avctx->global_quality/2) / avctx->global_quality;
+
+    avctx->extradata= av_mallocz(8);
+    avctx->extradata_size=8;
+    ((uint32_t*)avctx->extradata)[0]= av_le2ne32(a->inv_qscale);
+    ((uint32_t*)avctx->extradata)[1]= av_le2ne32(AV_RL32("ASUS"));
+
+    for(i=0; i<64; i++){
+        int q= 32*scale*ff_mpeg1_default_intra_matrix[i];
+        a->q_intra_matrix[i]= ((a->inv_qscale<<16) + q/2) / q;
+    }
+
+    return 0;
+}
+
+#if CONFIG_ASV1_ENCODER
+AVCodec ff_asv1_encoder = {
+    .name           = "asv1",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_ASV1,
+    .priv_data_size = sizeof(ASV1Context),
+    .init           = encode_init,
+    .encode2        = encode_frame,
+    .pix_fmts       = (const enum PixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
+    .long_name      = NULL_IF_CONFIG_SMALL("ASUS V1"),
+};
+#endif
+
+#if CONFIG_ASV2_ENCODER
+AVCodec ff_asv2_encoder = {
+    .name           = "asv2",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = AV_CODEC_ID_ASV2,
+    .priv_data_size = sizeof(ASV1Context),
+    .init           = encode_init,
+    .encode2        = encode_frame,
+    .pix_fmts       = (const enum PixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
+    .long_name      = NULL_IF_CONFIG_SMALL("ASUS V2"),
+};
+#endif