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aspect (ext. par too) support for h263 and mpeg4 (inc. build becouse of new vars)

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Originally committed as revision 941 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Beregszaszi 2002-09-13 19:31:32 +00:00
parent 60286c8a37
commit 050fe8bab5
3 changed files with 26 additions and 11 deletions
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4
libavcodec/avcodec.h
View File

@ -5,8 +5,8 @@
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
#define LIBAVCODEC_BUILD 4622
#define LIBAVCODEC_BUILD_STR "4622"
#define LIBAVCODEC_BUILD 4623
#define LIBAVCODEC_BUILD_STR "4623"
enum CodecID {
CODEC_ID_NONE,

28
libavcodec/h263.c
View File

@ -187,12 +187,17 @@ void h263_encode_picture_header(MpegEncContext * s, int picture_number)
/* Custom Picture Format (CPFMT) */
if (s->aspect_ratio_info)
put_bits(&s->pb,4,s->aspect_ratio_info);
put_bits(&s->pb,4,s->aspect_ratio_info);
else
put_bits(&s->pb,4,2); /* Aspect ratio: CIF 12:11 (4:3) picture */
put_bits(&s->pb,4,2); /* Aspect ratio: CIF 12:11 (4:3) picture */
put_bits(&s->pb,9,(s->width >> 2) - 1);
put_bits(&s->pb,1,1); /* "1" to prevent start code emulation */
put_bits(&s->pb,9,(s->height >> 2));
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED)
{
put_bits(&s->pb, 8, s->aspected_width);
put_bits(&s->pb, 8, s->aspected_height);
}
}
/* Unlimited Unrestricted Motion Vectors Indicator (UUI) */
@ -1361,6 +1366,11 @@ static void mpeg4_encode_vol_header(MpegEncContext * s)
put_bits(&s->pb, 4, s->aspect_ratio_info);/* aspect ratio info */
else
put_bits(&s->pb, 4, 1); /* aspect ratio info= sqare pixel */
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED)
{
put_bits(&s->pb, 8, s->aspected_width);
put_bits(&s->pb, 8, s->aspected_height);
}
if(s->low_delay){
put_bits(&s->pb, 1, 1); /* vol control parameters= yes */
@ -3158,7 +3168,7 @@ static int h263_decode_block(MpegEncContext * s, DCTELEM * block,
if (s->h263_rv10 && level == -128) {
/* XXX: should patch encoder too */
level = get_bits(&s->gb, 12);
level= (level + ((-1)<<11)) ^ ((-1)<<11); //sign extension
level= (level + ((-1)<<11)) ^ ((-1)<<11); //sign extension
}
} else {
run = rl->table_run[code];
@ -3547,10 +3557,10 @@ int h263_decode_picture_header(MpegEncContext *s)
skip_bits1(&s->gb);
height = get_bits(&s->gb, 9) * 4;
dprintf("\nH.263+ Custom picture: %dx%d\n",width,height);
if (s->aspect_ratio_info == EXTENDED_PAR) {
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED) {
/* aspected dimensions */
skip_bits(&s->gb, 8); /* width */
skip_bits(&s->gb, 8); /* height */
s->aspected_width = get_bits(&s->gb, 8);
s->aspected_height = get_bits(&s->gb, 8);
}
} else {
width = h263_format[format][0];
@ -3817,9 +3827,9 @@ int mpeg4_decode_picture_header(MpegEncContext * s)
}
//printf("vo type:%d\n",s->vo_type);
s->aspect_ratio_info= get_bits(&s->gb, 4);
if(s->aspect_ratio_info == EXTENDED_PAR){
skip_bits(&s->gb, 8); //par_width
skip_bits(&s->gb, 8); // par_height
if(s->aspect_ratio_info == FF_ASPECT_EXTENDED){
s->aspected_width = get_bits(&s->gb, 8); // par_width
s->aspected_height = get_bits(&s->gb, 8); // par_height
}
if ((s->vol_control_parameters=get_bits1(&s->gb))) { /* vol control parameter */

5
libavcodec/h263dec.c
View File

@ -193,6 +193,11 @@ uint64_t time= rdtsc();
avctx->width = s->width;
avctx->height = s->height;
avctx->aspect_ratio_info= s->aspect_ratio_info;
if (s->aspect_ratio_info == FF_ASPECT_EXTENDED)
{
avctx->aspected_width = s->aspected_width;
avctx->aspected_height = s->aspected_height;
}
if (MPV_common_init(s) < 0)
return -1;
}