MrBesen/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ASV1 codec

Browse Source 
with postprocessing support :)

Originally committed as revision 1891 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-05-19 13:30:59 +00:00
parent 22493ab9cb
commit 3d2e8cce3a
14 changed files with 530 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/Makefile
View File

@ -17,7 +17,7 @@ OBJS= common.o utils.o mem.o allcodecs.o \
mpeg12.o mpegaudiodec.o pcm.o simple_idct.o \
ratecontrol.o adpcm.o eval.o dv.o error_resilience.o \
fft.o mdct.o mace.o huffyuv.o cyuv.o opts.o raw.o h264.o golomb.o \
vp3.o
vp3.o asv1.o
ifeq ($(AMR_NB),yes)
OBJS+= amr.o

2
libavcodec/allcodecs.c
View File

@ -64,6 +64,7 @@ void avcodec_register_all(void)
#endif
register_avcodec(&mjpeg_encoder);
register_avcodec(&huffyuv_encoder);
register_avcodec(&asv1_encoder);
#endif /* CONFIG_ENCODERS */
register_avcodec(&rawvideo_encoder);
register_avcodec(&rawvideo_decoder);
@ -103,6 +104,7 @@ void avcodec_register_all(void)
register_avcodec(&cyuv_decoder);
register_avcodec(&h264_decoder);
register_avcodec(&vp3_decoder);
register_avcodec(&asv1_decoder);
#ifdef CONFIG_AC3
register_avcodec(&ac3_decoder);
#endif

454
libavcodec/asv1.c Normal file
View File

@ -0,0 +1,454 @@
/*
* ASUS V1 codec
* Copyright (c) 2003 Michael Niedermayer
*
* This library 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 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* @file asv1.c
* ASUS V1 codec.
*/
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
//#undef NDEBUG
//#include <assert.h>
#define VLC_BITS 5
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;
DCTELEM __align8 block[6][64];
uint16_t __align8 intra_matrix[64];
int __align8 q_intra_matrix[64];
uint8_t *bitstream_buffer;
int bitstream_buffer_size;
} ASV1Context;
static const uint8_t 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,
};
static const uint8_t ccp_tab[17][2]={
{0x2,2}, {0xE,5}, {0xD,5}, {0xC,5},
{0xB,5}, {0xA,5}, {0x9,5}, {0x8,5},
{0x7,5}, {0x6,5}, {0x5,5}, {0x4,5},
{0x3,5}, {0x2,5}, {0x1,5}, {0x3,2},
{0xF,5}, //EOB
};
static const uint8_t level_tab[7][2]={
{3,4}, {3,3}, {3,2}, {0,3}, {2,2}, {2,3}, {2,4}
};
static VLC ccp_vlc;
static VLC level_vlc;
static void init_vlcs(ASV1Context *a){
static int done = 0;
if (!done) {
done = 1;
init_vlc(&ccp_vlc, VLC_BITS, 17,
&ccp_tab[0][1], 2, 1,
&ccp_tab[0][0], 2, 1);
init_vlc(&level_vlc, VLC_BITS, 7,
&level_tab[0][1], 2, 1,
&level_tab[0][0], 2, 1);
}
}
static inline int get_level(GetBitContext *gb){
int code= get_vlc2(gb, level_vlc.table, VLC_BITS, 1);
if(code==3) return get_sbits(gb, 8);
else return code - 3;
}
static inline void put_level(PutBitContext *pb, int level){
unsigned int index= level + 3;
if(index <= 6) put_bits(pb, level_tab[index][1], level_tab[index][0]);
else{
put_bits(pb, level_tab[3][1], level_tab[3][0]);
put_bits(pb, 8, level&0xFF);
}
}
static inline int decode_block(ASV1Context *a, DCTELEM block[64]){
int i;
block[0]= 8*get_bits(&a->gb, 8);
for(i=0; i<11; i++){
const int ccp= get_vlc2(&a->gb, ccp_vlc.table, VLC_BITS, 1);
if(ccp){
if(ccp == 16) break;
if(ccp < 0 || i>=10){
printf("coded coeff pattern damaged\n");
return -1;
}
if(ccp&1) block[a->scantable.permutated[4*i+0]]= (get_level(&a->gb) * a->intra_matrix[4*i+0])>>4;
if(ccp&2) block[a->scantable.permutated[4*i+1]]= (get_level(&a->gb) * a->intra_matrix[4*i+1])>>4;;
if(ccp&4) block[a->scantable.permutated[4*i+2]]= (get_level(&a->gb) * a->intra_matrix[4*i+2])>>4;;
if(ccp&8) block[a->scantable.permutated[4*i+3]]= (get_level(&a->gb) * a->intra_matrix[4*i+3])>>4;;
}
}
return 0;
}
static inline void 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= scantab[4*i];
int ccp=0;
if( (block[index + 0] = (block[index + 0]*a->q_intra_matrix[index + 0] + (1<<15))>>16) ) ccp |= 1;
if( (block[index + 8] = (block[index + 8]*a->q_intra_matrix[index + 8] + (1<<15))>>16) ) ccp |= 2;
if( (block[index + 1] = (block[index + 1]*a->q_intra_matrix[index + 1] + (1<<15))>>16) ) ccp |= 4;
if( (block[index + 9] = (block[index + 9]*a->q_intra_matrix[index + 9] + (1<<15))>>16) ) ccp |= 8;
if(ccp){
for(;nc_count; nc_count--)
put_bits(&a->pb, ccp_tab[0][1], ccp_tab[0][0]);
put_bits(&a->pb, ccp_tab[ccp][1], ccp_tab[ccp][0]);
if(ccp&1) put_level(&a->pb, block[index + 0]);
if(ccp&2) put_level(&a->pb, block[index + 8]);
if(ccp&4) put_level(&a->pb, block[index + 1]);
if(ccp&8) put_level(&a->pb, block[index + 9]);
}else{
nc_count++;
}
}
put_bits(&a->pb, ccp_tab[16][1], ccp_tab[16][0]);
}
static inline int decode_mb(ASV1Context *a, DCTELEM block[6][64]){
int i;
a->dsp.clear_blocks(block[0]);
for(i=0; i<6; i++){
if( decode_block(a, block[i]) < 0)
return -1;
}
return 0;
}
static inline void encode_mb(ASV1Context *a, DCTELEM block[6][64]){
int i;
for(i=0; i<6; i++){
encode_block(a, block[i]);
}
}
static inline void idct_put(ASV1Context *a, int mb_x, int mb_y){
DCTELEM (*block)[64]= a->block;
int linesize= a->picture.linesize[0];
uint8_t *dest_y = a->picture.data[0] + (mb_y * 16* linesize ) + mb_x * 16;
uint8_t *dest_cb = a->picture.data[1] + (mb_y * 8 * a->picture.linesize[1]) + mb_x * 8;
uint8_t *dest_cr = a->picture.data[2] + (mb_y * 8 * a->picture.linesize[2]) + mb_x * 8;
a->dsp.idct_put(dest_y , linesize, block[0]);
a->dsp.idct_put(dest_y + 8, linesize, block[1]);
a->dsp.idct_put(dest_y + 8*linesize , linesize, block[2]);
a->dsp.idct_put(dest_y + 8*linesize + 8, linesize, block[3]);
if(!(a->avctx->flags&CODEC_FLAG_GRAY)){
a->dsp.idct_put(dest_cb, a->picture.linesize[1], block[4]);
a->dsp.idct_put(dest_cr, a->picture.linesize[2], block[5]);
}
}
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 decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
ASV1Context * const a = avctx->priv_data;
AVFrame *picture = data;
AVFrame * const p= (AVFrame*)&a->picture;
int mb_x, mb_y;
*data_size = 0;
/* special case for last picture */
if (buf_size == 0) {
return 0;
}
if(p->data[0])
avctx->release_buffer(avctx, p);
p->reference= 0;
if(avctx->get_buffer(avctx, p) < 0){
fprintf(stderr, "get_buffer() failed\n");
return -1;
}
p->pict_type= I_TYPE;
p->key_frame= 1;
a->bitstream_buffer= av_fast_realloc(a->bitstream_buffer, &a->bitstream_buffer_size, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
a->dsp.bswap_buf((uint32_t*)a->bitstream_buffer, (uint32_t*)buf, buf_size/4);
init_get_bits(&a->gb, a->bitstream_buffer, buf_size*8);
for(mb_y=0; mb_y<a->mb_height2; mb_y++){
for(mb_x=0; mb_x<a->mb_width2; mb_x++){
if( decode_mb(a, a->block) <0)
return -1;
idct_put(a, mb_x, mb_y);
}
}
if(a->mb_width2 != a->mb_width){
mb_x= a->mb_width2;
for(mb_y=0; mb_y<a->mb_height2; mb_y++){
if( decode_mb(a, a->block) <0)
return -1;
idct_put(a, mb_x, mb_y);
}
}
if(a->mb_height2 != a->mb_height){
mb_y= a->mb_height2;
for(mb_x=0; mb_x<a->mb_width; mb_x++){
if( decode_mb(a, a->block) <0)
return -1;
idct_put(a, mb_x, mb_y);
}
}
#if 0
int i;
printf("%d %d\n", 8*buf_size, get_bits_count(&a->gb));
for(i=get_bits_count(&a->gb); i<8*buf_size; i++){
printf("%d", get_bits1(&a->gb));
}
for(i=0; i<s->avctx->extradata_size; i++){
printf("%c\n", ((uint8_t*)s->avctx->extradata)[i]);
}
#endif
p->quality= (32 + a->inv_qscale/2)/a->inv_qscale;
memset(p->qscale_table, p->quality, p->qstride*a->mb_height);
*picture= *(AVFrame*)&a->picture;
*data_size = sizeof(AVPicture);
emms_c();
return (get_bits_count(&a->gb)+31)/32*4;
}
static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){
ASV1Context * const a = avctx->priv_data;
AVFrame *pict = data;
AVFrame * const p= (AVFrame*)&a->picture;
int size;
int mb_x, mb_y;
init_put_bits(&a->pb, buf, buf_size, NULL, NULL);
*p = *pict;
p->pict_type= I_TYPE;
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();
align_put_bits(&a->pb);
while(get_bit_count(&a->pb)&31)
put_bits(&a->pb, 8, 0);
size= get_bit_count(&a->pb)/32;
a->dsp.bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
return size*4;
}
static void common_init(AVCodecContext *avctx){
ASV1Context * const a = avctx->priv_data;
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= (AVFrame*)&a->picture;
a->avctx= avctx;
}
static int decode_init(AVCodecContext *avctx){
ASV1Context * const a = avctx->priv_data;
AVFrame *p= (AVFrame*)&a->picture;
int i;
common_init(avctx);
init_vlcs(a);
ff_init_scantable(a->dsp.idct_permutation, &a->scantable, scantab);
a->inv_qscale= le2me_32(((uint32_t*)avctx->extradata)[0]);
if(a->inv_qscale == 0){
printf("illegal qscale 0\n");
a->inv_qscale= 6;
}
for(i=0; i<64; i++){
int index= scantab[i];
a->intra_matrix[i]= 64*ff_mpeg1_default_intra_matrix[index] / a->inv_qscale;
}
p->qstride= a->mb_width;
p->qscale_table= av_mallocz( p->qstride * a->mb_height);
return 0;
}
static int encode_init(AVCodecContext *avctx){
ASV1Context * const a = avctx->priv_data;
int i;
common_init(avctx);
if(avctx->global_quality == 0) avctx->global_quality= 4*FF_QUALITY_SCALE;
a->inv_qscale= (32*FF_QUALITY_SCALE + avctx->global_quality/2) / avctx->global_quality;
avctx->extradata= av_mallocz(8);
avctx->extradata_size=8;
((uint32_t*)avctx->extradata)[0]= le2me_32(a->inv_qscale);
((uint32_t*)avctx->extradata)[1]= le2me_32(ff_get_fourcc("ASUS"));
for(i=0; i<64; i++){
int q= 32*ff_mpeg1_default_intra_matrix[i];
a->q_intra_matrix[i]= ((a->inv_qscale<<16) + q/2) / q;
}
return 0;
}
static int decode_end(AVCodecContext *avctx){
ASV1Context * const a = avctx->priv_data;
av_freep(&a->bitstream_buffer);
av_freep(&a->picture.qscale_table);
a->bitstream_buffer_size=0;
avcodec_default_free_buffers(avctx);
return 0;
}
AVCodec asv1_decoder = {
"asv1",
CODEC_TYPE_VIDEO,
CODEC_ID_ASV1,
sizeof(ASV1Context),
decode_init,
NULL,
decode_end,
decode_frame,
CODEC_CAP_DR1,
};
AVCodec asv1_encoder = {
"asv1",
CODEC_TYPE_VIDEO,
CODEC_ID_ASV1,
sizeof(ASV1Context),
encode_init,
encode_frame,
//encode_end,
};

16
libavcodec/avcodec.h
View File

@ -15,8 +15,8 @@ extern "C" {
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
#define LIBAVCODEC_BUILD 4667
#define LIBAVCODEC_BUILD_STR "4667"
#define LIBAVCODEC_BUILD 4668
#define LIBAVCODEC_BUILD_STR "4668"
#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" LIBAVCODEC_BUILD_STR
@ -55,6 +55,7 @@ enum CodecID {
CODEC_ID_VP3,
CODEC_ID_AAC,
CODEC_ID_MPEG4AAC,
CODEC_ID_ASV1,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE,
@ -1108,6 +1109,15 @@ typedef struct AVCodecContext {
* Dont touch, used by lavc default_get_buffer()
*/
void *internal_buffer;
#define FF_QUALITY_SCALE 256
/**
* global quality for codecs which cannot change it per frame.
* this should be proportional to MPEG1/2/4 qscale.
* - encoding: set by user.
* - decoding: unused
*/
int global_quality;
} AVCodecContext;
@ -1199,6 +1209,7 @@ extern AVCodec wmv1_encoder;
extern AVCodec wmv2_encoder;
extern AVCodec huffyuv_encoder;
extern AVCodec h264_encoder;
extern AVCodec asv1_encoder;
extern AVCodec h263_decoder;
extern AVCodec mpeg4_decoder;
@ -1231,6 +1242,7 @@ extern AVCodec vp3_decoder;
extern AVCodec amr_nb_decoder;
extern AVCodec aac_decoder;
extern AVCodec mpeg4aac_decoder;
extern AVCodec asv1_decoder;
/* pcm codecs */
#define PCM_CODEC(id, name) \

9
libavcodec/common.h
View File

@ -908,9 +908,18 @@ static inline int get_vlc_trace(GetBitContext *s, VLC_TYPE (*table)[2], int bits
printf("%5d %2d %3d vlc @%5d in %s %s:%d\n", bits2, len, r, pos, file, func, line);
return r;
}
static inline int get_xbits_trace(GetBitContext *s, int n, char *file, char *func, int line){
int show= show_bits(s, n);
int r= get_xbits(s, n);
print_bin(show, n);
printf("%5d %2d %3d xbt @%5d in %s %s:%d\n", show, n, r, get_bits_count(s)-n, file, func, line);
return r;
}
#define get_bits(s, n) get_bits_trace(s, n, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define get_bits1(s) get_bits_trace(s, 1, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define get_xbits(s, n) get_xbits_trace(s, n, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define get_vlc(s, vlc) get_vlc_trace(s, (vlc)->table, (vlc)->bits, 3, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define get_vlc2(s, tab, bits, max) get_vlc_trace(s, tab, bits, max, __FILE__, __PRETTY_FUNCTION__, __LINE__)

18
libavcodec/dsputil.c
View File

@ -187,6 +187,23 @@ static int pix_norm1_c(uint8_t * pix, int line_size)
return s;
}
static void bswap_buf(uint32_t *dst, uint32_t *src, int w){
int i;
for(i=0; i+8<=w; i+=8){
dst[i+0]= bswap_32(src[i+0]);
dst[i+1]= bswap_32(src[i+1]);
dst[i+2]= bswap_32(src[i+2]);
dst[i+3]= bswap_32(src[i+3]);
dst[i+4]= bswap_32(src[i+4]);
dst[i+5]= bswap_32(src[i+5]);
dst[i+6]= bswap_32(src[i+6]);
dst[i+7]= bswap_32(src[i+7]);
}
for(;i<w; i++){
dst[i+0]= bswap_32(src[i+0]);
}
}
static int sse8_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size)
{
@ -2879,6 +2896,7 @@ void dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->add_bytes= add_bytes_c;
c->diff_bytes= diff_bytes_c;
c->bswap_buf= bswap_buf;
#ifdef HAVE_MMX
dsputil_init_mmx(c, avctx);

1
libavcodec/dsputil.h
View File

@ -234,6 +234,7 @@ typedef struct DSPContext {
/* huffyuv specific */
void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
/* (I)DCT */
void (*fdct)(DCTELEM *block/* align 16*/);

16
libavcodec/h263.c
View File

@ -4731,15 +4731,15 @@ static int decode_vop_header(MpegEncContext *s, GetBitContext *gb){
}
if(s->alternate_scan){
ff_init_scantable(s, &s->inter_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s, &s->intra_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
} else{
ff_init_scantable(s, &s->inter_scantable , ff_zigzag_direct);
ff_init_scantable(s, &s->intra_scantable , ff_zigzag_direct);
ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
}
if(s->pict_type == S_TYPE && (s->vol_sprite_usage==STATIC_SPRITE || s->vol_sprite_usage==GMC_SPRITE)){

22
libavcodec/huffyuv.c
View File

@ -117,24 +117,6 @@ static const unsigned char classic_add_chroma[256] = {
6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2,
};
static inline void bswap_buf(uint32_t *dst, uint32_t *src, int w){
int i;
for(i=0; i+8<=w; i+=8){
dst[i+0]= bswap_32(src[i+0]);
dst[i+1]= bswap_32(src[i+1]);
dst[i+2]= bswap_32(src[i+2]);
dst[i+3]= bswap_32(src[i+3]);
dst[i+4]= bswap_32(src[i+4]);
dst[i+5]= bswap_32(src[i+5]);
dst[i+6]= bswap_32(src[i+6]);
dst[i+7]= bswap_32(src[i+7]);
}
for(;i<w; i++){
dst[i+0]= bswap_32(src[i+0]);
}
}
static inline int add_left_prediction(uint8_t *dst, uint8_t *src, int w, int acc){
int i;
@ -749,7 +731,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8
if (buf_size == 0)
return 0;
bswap_buf((uint32_t*)s->bitstream_buffer, (uint32_t*)buf, buf_size/4);
s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, (uint32_t*)buf, buf_size/4);
init_get_bits(&s->gb, s->bitstream_buffer, buf_size*8);
@ -1126,7 +1108,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size,
}
}else{
flush_put_bits(&s->pb);
bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
s->dsp.bswap_buf((uint32_t*)buf, (uint32_t*)buf, size);
}
s->picture_number++;

16
libavcodec/mpeg12.c
View File

@ -1721,15 +1721,15 @@ static void mpeg_decode_picture_coding_extension(MpegEncContext *s)
}
if(s->alternate_scan){
ff_init_scantable(s, &s->inter_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s, &s->intra_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
}else{
ff_init_scantable(s, &s->inter_scantable , ff_zigzag_direct);
ff_init_scantable(s, &s->intra_scantable , ff_zigzag_direct);
ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
}
/* composite display not parsed */

12
libavcodec/mpegvideo.c
View File

@ -136,7 +136,7 @@ static void convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16
}
#endif //CONFIG_ENCODERS
void ff_init_scantable(MpegEncContext *s, ScanTable *st, const uint8_t *src_scantable){
void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
int i;
int end;
@ -145,7 +145,7 @@ void ff_init_scantable(MpegEncContext *s, ScanTable *st, const uint8_t *src_scan
for(i=0; i<64; i++){
int j;
j = src_scantable[i];
st->permutated[i] = s->dsp.idct_permutation[j];
st->permutated[i] = permutation[j];
#ifdef ARCH_POWERPC
st->inverse[j] = i;
#endif
@ -202,10 +202,10 @@ int DCT_common_init(MpegEncContext *s)
/* load & permutate scantables
note: only wmv uses differnt ones
*/
ff_init_scantable(s, &s->inter_scantable , ff_zigzag_direct);
ff_init_scantable(s, &s->intra_scantable , ff_zigzag_direct);
ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
s->picture_structure= PICT_FRAME;

2
libavcodec/mpegvideo.h
View File

@ -706,7 +706,7 @@ void MPV_common_init_ppc(MpegEncContext *s);
extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
void ff_clean_intra_table_entries(MpegEncContext *s);
void ff_init_scantable(MpegEncContext *s, ScanTable *st, const uint8_t *src_scantable);
void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
void ff_emulated_edge_mc(MpegEncContext *s, uint8_t *src, int linesize, int block_w, int block_h,
int src_x, int src_y, int w, int h);

8
libavcodec/msmpeg4.c
View File

@ -180,10 +180,10 @@ static void common_init(MpegEncContext * s)
if(s->msmpeg4_version>=4){
ff_init_scantable(s, &s->intra_scantable , wmv1_scantable[1]);
ff_init_scantable(s, &s->intra_h_scantable, wmv1_scantable[2]);
ff_init_scantable(s, &s->intra_v_scantable, wmv1_scantable[3]);
ff_init_scantable(s, &s->inter_scantable , wmv1_scantable[0]);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , wmv1_scantable[1]);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, wmv1_scantable[2]);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, wmv1_scantable[3]);
ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , wmv1_scantable[0]);
}
//Note the default tables are set in common_init in mpegvideo.c

4
libavcodec/wmv2.c
View File

@ -55,8 +55,8 @@ typedef struct Wmv2Context{
static void wmv2_common_init(Wmv2Context * w){
MpegEncContext * const s= &w->s;
ff_init_scantable(s, &w->abt_scantable[0], wmv2_scantableA);
ff_init_scantable(s, &w->abt_scantable[1], wmv2_scantableB);
ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[0], wmv2_scantableA);
ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[1], wmv2_scantableB);
}
static int encode_ext_header(Wmv2Context *w){