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mpeg2 field pictures + sliced mode (doesnt work with mplayer though, dunno why)

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Originally committed as revision 1626 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-03-05 20:03:15 +00:00
parent 1d98dca328
commit 640950c700
4 changed files with 19 additions and 12 deletions
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4
libavcodec/h263dec.c
View File

@ -213,7 +213,7 @@ static int decode_slice(MpegEncContext *s){
if(++s->mb_x >= s->mb_width){
s->mb_x=0;
ff_draw_horiz_band(s);
ff_draw_horiz_band(s, s->mb_y*16, 16);
s->mb_y++;
}
return 0;
@ -230,7 +230,7 @@ static int decode_slice(MpegEncContext *s){
}
}
ff_draw_horiz_band(s);
ff_draw_horiz_band(s, s->mb_y*16, 16);
s->mb_x= 0;
}

8
libavcodec/mpeg12.c
View File

@ -1875,7 +1875,13 @@ static int mpeg_decode_slice(AVCodecContext *avctx,
}
if (++s->mb_x >= s->mb_width) {
ff_draw_horiz_band(s);
if(s->picture_structure==PICT_FRAME){
ff_draw_horiz_band(s, 16*s->mb_y, 16);
}else{
if(!s->first_field){
ff_draw_horiz_band(s, 32*s->mb_y, 32);
}
}
s->mb_x = 0;
s->mb_y++;

17
libavcodec/mpegvideo.c
View File

@ -2051,7 +2051,7 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
}else
s->mb_skiped= 0;
if(s->pict_type==B_TYPE && s->avctx->draw_horiz_band){
if(s->pict_type==B_TYPE && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME){ //FIXME precalc
dest_y = s->current_picture.data[0] + mb_x * 16;
dest_cb = s->current_picture.data[1] + mb_x * 8;
dest_cr = s->current_picture.data[2] + mb_x * 8;
@ -2356,17 +2356,18 @@ static int pix_diff_vcmp16x8(uint8_t *s1, uint8_t*s2, int stride){ //FIXME move
#endif //CONFIG_ENCODERS
void ff_draw_horiz_band(MpegEncContext *s){
/**
*
* @param h is the normal height, this will be reduced automatically if needed for the last row
*/
void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
if ( s->avctx->draw_horiz_band
&& (s->last_picture.data[0] || s->low_delay) ) {
uint8_t *src_ptr[3];
int y, h, offset;
y = s->mb_y * 16;
h = s->height - y;
if (h > 16)
h = 16;
int offset;
h= FFMIN(h, s->height - y);
if(s->pict_type==B_TYPE)
if(s->pict_type==B_TYPE && s->picture_structure == PICT_FRAME)
offset = 0;
else
offset = y * s->linesize;

2
libavcodec/mpegvideo.h
View File

@ -593,7 +593,7 @@ 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_error_resilience(MpegEncContext *s);
void ff_draw_horiz_band(MpegEncContext *s);
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);
char ff_get_pict_type_char(int pict_type);