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support omiting various headers in mpeg4 as WMP seems to have difficulty with them 

based upon 27_WMP_compatibility_with_ISOMPEG4.patch by (Calcium | calcium nurs or jp)
  indention fixed
  uses workaround_bugs instead of strict_std_compliancy as WMP is not the reference implementation

Originally committed as revision 4069 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-03-23 11:39:38 +00:00
parent 0d23cb8439
commit 59fa3f96f4
3 changed files with 23 additions and 11 deletions
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1
ffmpeg.c
View File

@ -3265,6 +3265,7 @@ static void opt_output_file(const char *filename)
video_enc->rc_eq = video_rc_eq;
video_enc->debug = debug;
video_enc->debug_mv = debug_mv;
video_enc->workaround_bugs = workaround_bugs;
video_enc->thread_count = thread_count;
p= video_rc_override_string;
for(i=0; p; i++){

5
libavcodec/avcodec.h
View File

@ -17,7 +17,7 @@ extern "C" {
#define FFMPEG_VERSION_INT 0x000409
#define FFMPEG_VERSION "0.4.9-pre1"
#define LIBAVCODEC_BUILD 4747
#define LIBAVCODEC_BUILD 4748
#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
#define LIBAVCODEC_VERSION FFMPEG_VERSION
@ -909,7 +909,7 @@ typedef struct AVCodecContext {
/**
* workaround bugs in encoders which sometimes cannot be detected automatically.
* - encoding: unused
* - encoding: set by user
* - decoding: set by user
*/
int workaround_bugs;
@ -927,6 +927,7 @@ typedef struct AVCodecContext {
#define FF_BUG_EDGE 1024
#define FF_BUG_HPEL_CHROMA 2048
#define FF_BUG_DC_CLIP 4096
#define FF_BUG_MS 8192 ///< workaround various bugs in microsofts broken decoders
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
/**

28
libavcodec/h263.c
View File

@ -2021,7 +2021,8 @@ void h263_encode_init(MpegEncContext *s)
s->avctx->extradata= av_malloc(1024);
init_put_bits(&s->pb, s->avctx->extradata, 1024);
mpeg4_encode_visual_object_header(s);
if(!(s->workaround_bugs & FF_BUG_MS))
mpeg4_encode_visual_object_header(s);
mpeg4_encode_vol_header(s, 0, 0);
// ff_mpeg4_stuffing(&s->pb); ?
@ -2320,9 +2321,13 @@ static void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_n
put_bits(&s->pb, 1, 0); /* random access vol */
put_bits(&s->pb, 8, s->vo_type); /* video obj type indication */
put_bits(&s->pb, 1, 1); /* is obj layer id= yes */
put_bits(&s->pb, 4, vo_ver_id); /* is obj layer ver id */
put_bits(&s->pb, 3, 1); /* is obj layer priority */
if(s->workaround_bugs & FF_BUG_MS) {
put_bits(&s->pb, 1, 0); /* is obj layer id= no */
} else {
put_bits(&s->pb, 1, 1); /* is obj layer id= yes */
put_bits(&s->pb, 4, vo_ver_id); /* is obj layer ver id */
put_bits(&s->pb, 3, 1); /* is obj layer priority */
}
aspect_to_info(s, s->avctx->sample_aspect_ratio);
@ -2332,10 +2337,14 @@ static void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_n
put_bits(&s->pb, 8, s->avctx->sample_aspect_ratio.den);
}
put_bits(&s->pb, 1, 1); /* vol control parameters= yes */
put_bits(&s->pb, 2, 1); /* chroma format YUV 420/YV12 */
put_bits(&s->pb, 1, s->low_delay);
put_bits(&s->pb, 1, 0); /* vbv parameters= no */
if(s->workaround_bugs & FF_BUG_MS) { //
put_bits(&s->pb, 1, 0); /* vol control parameters= no @@@ */
} else {
put_bits(&s->pb, 1, 1); /* vol control parameters= yes */
put_bits(&s->pb, 2, 1); /* chroma format YUV 420/YV12 */
put_bits(&s->pb, 1, s->low_delay);
put_bits(&s->pb, 1, 0); /* vbv parameters= no */
}
put_bits(&s->pb, 2, RECT_SHAPE); /* vol shape= rectangle */
put_bits(&s->pb, 1, 1); /* marker bit */
@ -2405,7 +2414,8 @@ void mpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
if(s->strict_std_compliance < 2 || picture_number==0) //HACK, the reference sw is buggy
mpeg4_encode_vol_header(s, 0, 0);
}
mpeg4_encode_gop_header(s);
if(!(s->workaround_bugs & FF_BUG_MS))
mpeg4_encode_gop_header(s);
}
s->partitioned_frame= s->data_partitioning && s->pict_type!=B_TYPE;