generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

cleanup / messup?

Browse Source 
fixes 20% speedloss bug
removes redundant variables from MpegEncContext
release buffers in avcodec_flush_buffers() (untested)

Originally committed as revision 1325 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-12-09 00:29:17 +00:00
parent f8af5cb5a4
commit 4e00e76b3c
7 changed files with 254 additions and 137 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
libavcodec/avcodec.h
View File

@ -5,8 +5,8 @@
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
#define LIBAVCODEC_BUILD 4643
#define LIBAVCODEC_BUILD_STR "4643"
#define LIBAVCODEC_BUILD 4644
#define LIBAVCODEC_BUILD_STR "4644"
enum CodecID {
CODEC_ID_NONE,
@ -119,7 +119,7 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
ME_X1, ME_EPZS, ME_FULL };
#define FF_MAX_B_FRAMES 4
#define FF_MAX_B_FRAMES 8
/* encoding support
these flags can be passed in AVCodecContext.flags before initing
@ -260,6 +260,19 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
* decoding: unused\
*/\
uint64_t error[4];\
\
/**\
* type of the buffer (to keep track of who has to dealloc data[*])\
* encoding: set by the one who allocs it\
* decoding: set by the one who allocs it\
* Note: user allocated (direct rendering) & internal buffers can not coexist currently\
*/\
int type;\
#define FF_BUFFER_TYPE_INTERNAL 1
#define FF_BUFFER_TYPE_USER 2 // Direct rendering buffers
#define FF_BUFFER_TYPE_SHARED 4 // input frame for encoding(wont be dealloced)
#define FF_I_TYPE 1 // Intra
#define FF_P_TYPE 2 // Predicted

16
libavcodec/h263dec.c
View File

@ -55,6 +55,7 @@ static int h263_decode_init(AVCodecContext *avctx)
s->quant_precision=5;
s->progressive_sequence=1;
s->decode_mb= ff_h263_decode_mb;
s->low_delay= 1;
/* select sub codec */
switch(avctx->codec->id) {
@ -64,7 +65,7 @@ static int h263_decode_init(AVCodecContext *avctx)
case CODEC_ID_MPEG4:
s->time_increment_bits = 4; /* default value for broken headers */
s->h263_pred = 1;
s->has_b_frames = 1; //default, might be overriden in the vol header during header parsing
s->low_delay = 0; //default, might be overriden in the vol header during header parsing
break;
case CODEC_ID_MSMPEG4V1:
s->h263_msmpeg4 = 1;
@ -430,14 +431,12 @@ retry:
if(s->flags& CODEC_FLAG_LOW_DELAY)
s->low_delay=1;
s->has_b_frames= !s->low_delay;
} else if (s->h263_intel) {
ret = intel_h263_decode_picture_header(s);
} else {
ret = h263_decode_picture_header(s);
}
avctx->has_b_frames= s->has_b_frames;
avctx->has_b_frames= !s->low_delay;
if(s->workaround_bugs&FF_BUG_AUTODETECT){
if(s->avctx->fourcc == ff_get_fourcc("XVIX"))
@ -531,7 +530,7 @@ retry:
s->current_picture.key_frame= s->pict_type == I_TYPE;
/* skip b frames if we dont have reference frames */
if(s->num_available_buffers<2 && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
if(s->last_picture.data[0]==NULL && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
/* skip b frames if we are in a hurry */
if(avctx->hurry_up && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
/* skip everything if we are in a hurry>=5 */
@ -676,7 +675,7 @@ retry:
}
#endif
if(s->pict_type==B_TYPE || (!s->has_b_frames)){
if(s->pict_type==B_TYPE || s->low_delay){
*pict= *(AVVideoFrame*)&s->current_picture;
} else {
*pict= *(AVVideoFrame*)&s->last_picture;
@ -686,9 +685,8 @@ retry:
/* we substract 1 because it is added on utils.c */
avctx->frame_number = s->picture_number - 1;
/* dont output the last pic after seeking
note we allready added +1 for the current pix in MPV_frame_end(s) */
if(s->num_available_buffers>=2 || (!s->has_b_frames))
/* dont output the last pic after seeking */
if(s->last_picture.data[0] || s->low_delay)
*data_size = sizeof(AVVideoFrame);
#ifdef PRINT_FRAME_TIME
printf("%Ld\n", rdtsc()-time);

4
libavcodec/mpeg12.c
View File

@ -1702,7 +1702,7 @@ eos: //end of slice
MPV_frame_end(s);
if (s->pict_type == B_TYPE) {
if (s->pict_type == B_TYPE || s->low_delay) {
*pict= *(AVVideoFrame*)&s->current_picture;
} else {
s->picture_number++;
@ -1756,7 +1756,7 @@ static int mpeg1_decode_sequence(AVCodecContext *avctx,
}
s->width = width;
s->height = height;
avctx->has_b_frames= s->has_b_frames = 1;
avctx->has_b_frames= 1;
s->avctx = avctx;
avctx->width = width;
avctx->height = height;

307
libavcodec/mpegvideo.c
View File

@ -268,40 +268,87 @@ int DCT_common_init(MpegEncContext *s)
}
/**
* allocates various arrays for a Picture structure, except the pixels themself.
* The pixels are allocated/set in te get_buffer()
* allocates a Picture
* The pixels are allocated/set by calling get_buffer() if shared=0
*/
static int alloc_picture(MpegEncContext *s, Picture *pic){
if (s->encoding) {
CHECKED_ALLOCZ(pic->mb_var , s->mb_num * sizeof(INT16))
CHECKED_ALLOCZ(pic->mc_mb_var, s->mb_num * sizeof(INT16))
CHECKED_ALLOCZ(pic->mb_mean , s->mb_num * sizeof(INT8))
}
static int alloc_picture(MpegEncContext *s, Picture *pic, int shared){
if(shared){
assert(pic->data[0]);
assert(pic->type == 0 || pic->type == FF_BUFFER_TYPE_SHARED);
pic->type= FF_BUFFER_TYPE_SHARED;
}else{
int r;
assert(!pic->data[0]);
r= s->avctx->get_buffer(s->avctx, (AVVideoFrame*)pic);
if(r<0 || !pic->age || !pic->type || !pic->data[0]){
fprintf(stderr, "get_buffer() failed (%d %d %d %X)\n", r, pic->age, pic->type, (int)pic->data[0]);
return -1;
}
CHECKED_ALLOCZ(pic->mbskip_table , s->mb_num * sizeof(UINT8)+1) //the +1 is for the slice end check
CHECKED_ALLOCZ(pic->qscale_table , s->mb_num * sizeof(UINT8))
pic->qstride= s->mb_width;
if(s->linesize && (s->linesize != pic->linesize[0] || s->uvlinesize != pic->linesize[1])){
fprintf(stderr, "get_buffer() failed (stride changed)\n");
return -1;
}
if(pic->linesize[1] != pic->linesize[2]){
fprintf(stderr, "get_buffer() failed (uv stride missmatch)\n");
return -1;
}
s->linesize = pic->linesize[0];
s->uvlinesize= pic->linesize[1];
}
if(pic->qscale_table==NULL){
if (s->encoding) {
CHECKED_ALLOCZ(pic->mb_var , s->mb_num * sizeof(INT16))
CHECKED_ALLOCZ(pic->mc_mb_var, s->mb_num * sizeof(INT16))
CHECKED_ALLOCZ(pic->mb_mean , s->mb_num * sizeof(INT8))
}
CHECKED_ALLOCZ(pic->mbskip_table , s->mb_num * sizeof(UINT8)+1) //the +1 is for the slice end check
CHECKED_ALLOCZ(pic->qscale_table , s->mb_num * sizeof(UINT8))
pic->qstride= s->mb_width;
}
return 0;
fail: //for the CHECKED_ALLOCZ macro
return -1;
}
/**
* deallocates a picture
*/
static void free_picture(MpegEncContext *s, Picture *pic){
int i;
if(pic->data[0] && pic->type!=FF_BUFFER_TYPE_SHARED){
s->avctx->release_buffer(s->avctx, (AVVideoFrame*)pic);
}
av_freep(&pic->mb_var);
av_freep(&pic->mc_mb_var);
av_freep(&pic->mb_mean);
av_freep(&pic->mbskip_table);
av_freep(&pic->qscale_table);
if(s->avctx->get_buffer == avcodec_default_get_buffer){
if(pic->type == FF_BUFFER_TYPE_INTERNAL){
for(i=0; i<4; i++){
av_freep(&pic->base[i]);
pic->data[i]= NULL;
}
av_freep(&pic->opaque);
pic->type= 0;
}else if(pic->type == FF_BUFFER_TYPE_SHARED){
for(i=0; i<4; i++){
pic->base[i]=
pic->data[i]= NULL;
}
pic->type= 0;
}
}
@ -445,12 +492,6 @@ void MPV_common_end(MpegEncContext *s)
{
int i;
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0]){
s->avctx->release_buffer(s->avctx, (AVVideoFrame*)&s->picture[i]);
}
}
av_freep(&s->mb_type);
av_freep(&s->p_mv_table);
av_freep(&s->b_forw_mv_table);
@ -572,6 +613,7 @@ int MPV_encode_init(AVCodecContext *avctx)
if (mjpeg_init(s) < 0)
return -1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_H263:
if (h263_get_picture_format(s->width, s->height) == 7) {
@ -580,6 +622,7 @@ int MPV_encode_init(AVCodecContext *avctx)
}
s->out_format = FMT_H263;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_H263P:
s->out_format = FMT_H263;
@ -591,18 +634,19 @@ int MPV_encode_init(AVCodecContext *avctx)
s->umvplus = 0;
s->umvplus_dec = 0;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_RV10:
s->out_format = FMT_H263;
s->h263_rv10 = 1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_MPEG4:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->has_b_frames= s->max_b_frames ? 1 : 0;
s->low_delay= !s->has_b_frames;
s->low_delay= s->max_b_frames ? 0 : 1;
avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
break;
case CODEC_ID_MSMPEG4V1:
@ -612,6 +656,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->unrestricted_mv = 1;
s->msmpeg4_version= 1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_MSMPEG4V2:
s->out_format = FMT_H263;
@ -620,6 +665,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->unrestricted_mv = 1;
s->msmpeg4_version= 2;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_MSMPEG4V3:
s->out_format = FMT_H263;
@ -628,6 +674,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->unrestricted_mv = 1;
s->msmpeg4_version= 3;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_WMV1:
s->out_format = FMT_H263;
@ -636,6 +683,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->unrestricted_mv = 1;
s->msmpeg4_version= 4;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_WMV2:
s->out_format = FMT_H263;
@ -644,6 +692,7 @@ int MPV_encode_init(AVCodecContext *avctx)
s->unrestricted_mv = 1;
s->msmpeg4_version= 5;
avctx->delay=0;
s->low_delay=1;
break;
default:
return -1;
@ -770,10 +819,30 @@ static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
}
}
static int find_unused_picture(MpegEncContext *s, int shared){
int i;
if(shared){
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0]==NULL && s->picture[i].type==0) break;
}
}else{
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0]==NULL && s->picture[i].type!=0) break;
}
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0]==NULL) break;
}
}
assert(i<MAX_PICTURE_COUNT);
return i;
}
/* generic function for encode/decode called before a frame is coded/decoded */
int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
{
int i, r;
int i;
AVVideoFrame *pic;
s->mb_skiped = 0;
@ -781,6 +850,7 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
/* mark&release old frames */
if (s->pict_type != B_TYPE && s->last_picture.data[0]) {
for(i=0; i<MAX_PICTURE_COUNT; i++){
//printf("%8X %d %d %X %X\n", s->picture[i].data[0], s->picture[i].type, i, s->next_picture.data[0], s->last_picture.data[0]);
if(s->picture[i].data[0] == s->last_picture.data[0]){
// s->picture[i].reference=0;
avctx->release_buffer(avctx, (AVVideoFrame*)&s->picture[i]);
@ -802,28 +872,13 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
}
alloc:
if(!s->encoding){
/* find unused Picture */
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0]==NULL) break;
}
assert(i<MAX_PICTURE_COUNT);
i= find_unused_picture(s, 0);
pic= (AVVideoFrame*)&s->picture[i];
pic->reference= s->pict_type != B_TYPE;
pic->coded_picture_number= s->current_picture.coded_picture_number+1;
r= avctx->get_buffer(avctx, pic);
if(r<0 || (s->linesize && (s->linesize != pic->linesize[0] || s->uvlinesize != pic->linesize[1]))){
fprintf(stderr, "get_buffer() failed (stride changed), bye bye\n");
return -1;
}
s->linesize = pic->linesize[0];
s->uvlinesize= pic->linesize[1];
if(pic->qscale_table==NULL)
alloc_picture(s, (Picture*)pic);
alloc_picture(s, (Picture*)pic, 0);
s->current_picture= s->picture[i];
}
@ -873,8 +928,6 @@ void MPV_frame_end(MpegEncContext *s)
s->last_pict_type = s->pict_type;
if(s->pict_type!=B_TYPE){
s->last_non_b_pict_type= s->pict_type;
s->num_available_buffers++;
if(s->num_available_buffers>2) s->num_available_buffers= 2;
}
s->current_picture.quality= s->qscale; //FIXME get average of qscale_table
@ -892,7 +945,7 @@ void MPV_frame_end(MpegEncContext *s)
/* release non refernce frames */
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0] && !s->picture[i].reference)
if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/)
s->avctx->release_buffer(s->avctx, (AVVideoFrame*)&s->picture[i]);
}
}
@ -930,81 +983,81 @@ static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int st
return acc;
}
static int load_input_picture(MpegEncContext *s, AVVideoFrame *pic_arg){
AVVideoFrame *pic;
int i,r;
int i;
const int encoding_delay= s->max_b_frames;
int direct=1;
/* find unused Picture */
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0]==NULL) break;
}
assert(i<MAX_PICTURE_COUNT);
if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
if(pic_arg->linesize[0] != s->linesize) direct=0;
if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
// printf("%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
if(direct){
i= find_unused_picture(s, 1);
pic= (AVVideoFrame*)&s->picture[i];
pic->reference= 1;
for(i=0; i<4; i++){
pic->data[i]= pic_arg->data[i];
pic->linesize[i]= pic_arg->linesize[i];
}
alloc_picture(s, (Picture*)pic, 1);
}else{
i= find_unused_picture(s, 0);
pic= (AVVideoFrame*)&s->picture[i];
pic->reference= 1;
alloc_picture(s, (Picture*)pic, 0);
if( pic->data[0] == pic_arg->data[0]
&& pic->data[1] == pic_arg->data[1]
&& pic->data[2] == pic_arg->data[2]){
// empty
}else{
int h_chroma_shift, v_chroma_shift;
pic= (AVVideoFrame*)&s->picture[i];
pic->reference= 1;
// assert(avctx->get_buffer == default_get_buffer || avctx->get_buffer==NULL);
r= s->avctx->get_buffer(s->avctx, pic);
if(r<0 || (s->linesize && (s->linesize != pic->linesize[0] || s->uvlinesize != pic->linesize[1]))){
fprintf(stderr, "get_buffer() failed (stride changed), bye bye\n");
return -1;
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
for(i=0; i<3; i++){
int src_stride= pic_arg->linesize[i];
int dst_stride= i ? s->uvlinesize : s->linesize;
int h_shift= i ? h_chroma_shift : 0;
int v_shift= i ? v_chroma_shift : 0;
int w= s->width >>h_shift;
int h= s->height>>v_shift;
uint8_t *src= pic_arg->data[i];
uint8_t *dst= pic->data[i];
if(src_stride==dst_stride)
memcpy(dst, src, src_stride*h);
else{
while(h--){
memcpy(dst, src, w);
dst += dst_stride;
src += src_stride;
}
}
}
}
}
assert(s->linesize==0 || s->linesize ==pic->linesize[0]);
assert(s->uvlinesize==0 || s->uvlinesize==pic->linesize[1]);
assert(pic->linesize[1] == pic->linesize[2]);
s->linesize = pic->linesize[0];
s->uvlinesize= pic->linesize[1];
if(pic->qscale_table==NULL)
alloc_picture(s, (Picture*)pic);
// assert(s->input_picture[0]==NULL || s->input_picture[0]->data[0]==NULL);
pic->quality= pic_arg->quality;
pic->pict_type= pic_arg->pict_type;
if(s->input_picture[encoding_delay])
pic->display_picture_number= s->input_picture[encoding_delay]->display_picture_number + 1;
//printf("dpn2:%d\n", pic->display_picture_number);
/* shift buffer entries */
for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
s->input_picture[i-1]= s->input_picture[i];
s->input_picture[encoding_delay]= (Picture*)pic;
pic->pict_type= pic_arg->pict_type;
pic->quality= pic_arg->quality;
if( pic->data[0] == pic_arg->data[0]
&& pic->data[1] == pic_arg->data[1]
&& pic->data[2] == pic_arg->data[2]){
// empty
}else{
int h_chroma_shift, v_chroma_shift;
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
for(i=0; i<3; i++){
int src_stride= pic_arg->linesize[i];
int dst_stride= i ? s->uvlinesize : s->linesize;
int h_shift= i ? h_chroma_shift : 0;
int v_shift= i ? v_chroma_shift : 0;
int w= s->width >>h_shift;
int h= s->height>>v_shift;
uint8_t *src= pic_arg->data[i];
uint8_t *dst= pic->data[i] + 16;
if(src_stride==dst_stride)
memcpy(dst, src, src_stride*h);
else{
while(h--){
memcpy(dst, src, w);
dst += dst_stride;
src += src_stride;
}
}
}
}
return 0;
}
@ -1016,7 +1069,7 @@ static void select_input_picture(MpegEncContext *s){
if(s->reordered_input_picture[0])
coded_pic_num= s->reordered_input_picture[0]->coded_picture_number + 1;
//printf("cpn:%d\n", coded_pic_num);
for(i=1; i<MAX_PICTURE_COUNT; i++)
s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
@ -1039,7 +1092,7 @@ static void select_input_picture(MpegEncContext *s){
if(i + 1 >= s->rc_context.num_entries) break;
}
}
if(s->input_picture[0]->pict_type){
/* user selected pict_type */
for(b_frames=0; b_frames<s->max_b_frames+1; b_frames++){
@ -1056,8 +1109,8 @@ static void select_input_picture(MpegEncContext *s){
for(i=1; i<s->max_b_frames+1; i++){
if(s->input_picture[i]->b_frame_score==0){
s->input_picture[i]->b_frame_score=
get_intra_count(s, s->input_picture[i ]->data[0] + 16,
s->input_picture[i-1]->data[0] + 16, s->linesize) + 1;
get_intra_count(s, s->input_picture[i ]->data[0],
s->input_picture[i-1]->data[0], s->linesize) + 1;
}
}
for(i=0; i<s->max_b_frames; i++){
@ -1097,14 +1150,38 @@ static void select_input_picture(MpegEncContext *s){
}
if(s->reordered_input_picture[0]){
if(s->reordered_input_picture[0]->pict_type==B_TYPE){
s->reordered_input_picture[0]->reference=0;
s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE;
if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
int i= find_unused_picture(s, 0);
Picture *pic= &s->picture[i];
s->new_picture= *s->reordered_input_picture[0];
/* mark us unused / free shared pic */
for(i=0; i<4; i++)
s->reordered_input_picture[0]->data[i]= NULL;
s->reordered_input_picture[0]->type= 0;
pic->pict_type = s->reordered_input_picture[0]->pict_type;
pic->quality = s->reordered_input_picture[0]->quality;
pic->coded_picture_number = s->reordered_input_picture[0]->coded_picture_number;
pic->reference = s->reordered_input_picture[0]->reference;
alloc_picture(s, pic, 0);
s->current_picture= *pic;
}else{
assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
|| s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
s->new_picture= *s->reordered_input_picture[0];
for(i=0; i<4; i++){
s->reordered_input_picture[0]->data[i]-=16; //FIXME dirty
}
s->current_picture= *s->reordered_input_picture[0];
}
s->current_picture= *s->reordered_input_picture[0];
s->new_picture= s->current_picture;
s->new_picture.data[0]+=16;
s->new_picture.data[1]+=16;
s->new_picture.data[2]+=16;
s->picture_number= s->new_picture.display_picture_number;
//printf("dpn:%d\n", s->picture_number);
@ -2231,7 +2308,7 @@ static int pix_diff_vcmp16x8(UINT8 *s1, UINT8*s2, int stride){ //FIXME move to d
void ff_draw_horiz_band(MpegEncContext *s){
if ( s->avctx->draw_horiz_band
&& (s->num_available_buffers>=1 || (!s->has_b_frames)) ) {
&& (s->last_picture.data[0] || s->low_delay) ) {
UINT8 *src_ptr[3];
int y, h, offset;
y = s->mb_y * 16;
@ -2244,7 +2321,7 @@ void ff_draw_horiz_band(MpegEncContext *s){
else
offset = y * s->linesize;
if(s->pict_type==B_TYPE || (!s->has_b_frames)){
if(s->pict_type==B_TYPE || s->low_delay){
src_ptr[0] = s->current_picture.data[0] + offset;
src_ptr[1] = s->current_picture.data[1] + (offset >> 2);
src_ptr[2] = s->current_picture.data[2] + (offset >> 2);

2
libavcodec/mpegvideo.h
View File

@ -185,7 +185,6 @@ typedef struct MpegEncContext {
Picture next_picture; /* previous picture (for bidir pred) */
Picture new_picture; /* source picture for encoding */
Picture current_picture; /* buffer to store the decompressed current picture */
int num_available_buffers; /* is 0 at the start & after seeking, after the first I frame its 1 after next I/P 2 */
int last_dc[3]; /* last DC values for MPEG1 */
INT16 *dc_val[3]; /* used for mpeg4 DC prediction, all 3 arrays must be continuous */
int y_dc_scale, c_dc_scale;
@ -254,7 +253,6 @@ typedef struct MpegEncContext {
UINT16 (*mv_penalty)[MAX_MV*2+1]; /* amount of bits needed to encode a MV, used for ME */
UINT8 *fcode_tab; /* smallest fcode needed for each MV */
int has_b_frames;
int no_rounding; /* apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
for b-frames rounding mode is allways 0 */

2
libavcodec/svq1.c
View File

@ -1179,7 +1179,7 @@ static int svq1_decode_init(AVCodecContext *avctx)
s->height = (avctx->height+3)&~3;
s->codec_id= avctx->codec->id;
avctx->pix_fmt = PIX_FMT_YUV410P;
avctx->has_b_frames= s->has_b_frames=1; // not true, but DP frames and these behave like unidirectional b frames
avctx->has_b_frames= 1; // not true, but DP frames and these behave like unidirectional b frames
s->flags= avctx->flags;
if (MPV_common_init(s) < 0) return -1;
return 0;

41
libavcodec/utils.c
View File

@ -125,6 +125,9 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVVideoFrame *pic){
const int width = s->width;
const int height= s->height;
DefaultPicOpaque *opaque;
assert(pic->data[0]==NULL);
assert(pic->type==0 || pic->type==FF_TYPE_INTERNAL);
if(pic->opaque){
opaque= (DefaultPicOpaque *)pic->opaque;
@ -186,13 +189,14 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVVideoFrame *pic){
memset(pic->base[i], 128, pic->linesize[i]*h>>v_shift);
if(s->flags&CODEC_FLAG_EMU_EDGE)
pic->data[i] = pic->base[i];
pic->data[i] = pic->base[i] + 16; //FIXME 16
else
pic->data[i] = pic->base[i] + (pic->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift);
pic->data[i] = pic->base[i] + (pic->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift) + 16; //FIXME 16
opaque->data[i]= pic->data[i];
}
pic->age= 256*256*256*64;
pic->type= FF_BUFFER_TYPE_INTERNAL;
}
return 0;
@ -201,6 +205,8 @@ int avcodec_default_get_buffer(AVCodecContext *s, AVVideoFrame *pic){
void avcodec_default_release_buffer(AVCodecContext *s, AVVideoFrame *pic){
int i;
assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
for(i=0; i<3; i++)
pic->data[i]=NULL;
//printf("R%X\n", pic->opaque);
@ -642,14 +648,39 @@ void avcodec_init(void)
//dsputil_init();
}
/* this should be called after seeking and before trying to decode the next frame */
/* this can be called after seeking and before trying to decode the next keyframe */
void avcodec_flush_buffers(AVCodecContext *avctx)
{
int i;
MpegEncContext *s = avctx->priv_data;
s->num_available_buffers=0;
switch(avctx->codec_id){
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_H263:
case CODEC_ID_RV10:
case CODEC_ID_MJPEG:
case CODEC_ID_MJPEGB:
case CODEC_ID_MPEG4:
case CODEC_ID_MSMPEG4V1:
case CODEC_ID_MSMPEG4V2:
case CODEC_ID_MSMPEG4V3:
case CODEC_ID_WMV1:
case CODEC_ID_WMV2:
case CODEC_ID_H263P:
case CODEC_ID_H263I:
case CODEC_ID_SVQ1:
for(i=0; i<MAX_PICTURE_COUNT; i++){
if(s->picture[i].data[0] && ( s->picture[i].type == FF_BUFFER_TYPE_INTERNAL
|| s->picture[i].type == FF_BUFFER_TYPE_USER))
avctx->release_buffer(avctx, (AVVideoFrame*)&s->picture[i]);
}
break;
default:
//FIXME
break;
}
}
static int raw_encode_init(AVCodecContext *s)
{
return 0;