mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-21 16:55:05 +02:00
![Michael Niedermayer](/assets/img/avatar_default.png)
* commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f': Drop DCTELEM typedef Conflicts: libavcodec/alpha/dsputil_alpha.h libavcodec/alpha/motion_est_alpha.c libavcodec/arm/dsputil_init_armv6.c libavcodec/bfin/dsputil_bfin.h libavcodec/bfin/pixels_bfin.S libavcodec/cavs.c libavcodec/cavsdec.c libavcodec/dct-test.c libavcodec/dnxhdenc.c libavcodec/dsputil.c libavcodec/dsputil.h libavcodec/dsputil_template.c libavcodec/eamad.c libavcodec/h264_cavlc.c libavcodec/h264idct_template.c libavcodec/mpeg12.c libavcodec/mpegvideo.c libavcodec/mpegvideo.h libavcodec/mpegvideo_enc.c libavcodec/ppc/dsputil_altivec.c libavcodec/proresdsp.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
289 lines
9.1 KiB
C
289 lines
9.1 KiB
C
/*
|
|
* Copyright (c) 2003 Michael Niedermayer
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* ASUS V1/V2 encoder.
|
|
*/
|
|
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/mem.h"
|
|
|
|
#include "asv.h"
|
|
#include "avcodec.h"
|
|
#include "internal.h"
|
|
#include "mathops.h"
|
|
#include "mpeg12data.h"
|
|
|
|
static inline void asv2_put_bits(PutBitContext *pb, int n, int v){
|
|
put_bits(pb, n, ff_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, int16_t 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, int16_t 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;
|
|
|
|
av_assert2(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, int16_t 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){
|
|
int16_t (*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 ((ret = ff_alloc_packet2(avctx, pkt, a->mb_height*a->mb_width*MAX_MB_SIZE +
|
|
FF_MIN_BUFFER_SIZE)) < 0)
|
|
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] = ff_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 AVPixelFormat[]){ 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 AVPixelFormat[]){ AV_PIX_FMT_YUV420P,
|
|
AV_PIX_FMT_NONE },
|
|
.long_name = NULL_IF_CONFIG_SMALL("ASUS V2"),
|
|
};
|
|
#endif
|