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autodetect UMP4 (by adding a fourcc field to AVCodecContext)

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Originally committed as revision 974 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-09-26 23:27:22 +00:00
parent 7f2bdb62d4
commit 0c2dd16eb6
2 changed files with 17 additions and 7 deletions
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12
libavcodec/avcodec.h
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@ -5,8 +5,8 @@
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
#define LIBAVCODEC_BUILD 4627
#define LIBAVCODEC_BUILD_STR "4627"
#define LIBAVCODEC_BUILD 4628
#define LIBAVCODEC_BUILD_STR "4628"
enum CodecID {
CODEC_ID_NONE,
@ -675,6 +675,14 @@ typedef struct AVCodecContext {
* decoding: unused
*/
float dark_masking;
/**
* fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
* this is used to workaround some encoder bugs
* encoding: unused
* decoding: set by user
*/
int fourcc;
//FIXME this should be reordered after kabis API is finished ...
//TODO kill kabi

12
libavcodec/h263.c
View File

@ -4162,7 +4162,7 @@ int mpeg4_decode_picture_header(MpegEncContext * s)
if( h_sampling_factor_n==0 || h_sampling_factor_m==0
|| v_sampling_factor_n==0 || v_sampling_factor_m==0 || s->workaround_bugs==1){
fprintf(stderr, "illegal scalability header (VERY broken encoder), trying to workaround\n");
// fprintf(stderr, "illegal scalability header (VERY broken encoder), trying to workaround\n");
s->scalability=0;
s->gb= bak;
@ -4231,10 +4231,12 @@ int mpeg4_decode_picture_header(MpegEncContext * s)
s->last_time_base= s->time_base;
s->time_base+= time_incr;
s->time= s->time_base*s->time_increment_resolution + time_increment;
if(s->time < s->last_non_b_time && s->workaround_bugs==3){
fprintf(stderr, "header is not mpeg4 compatible, broken encoder, trying to workaround\n");
s->time_base++;
s->time+= s->time_increment_resolution;
if(s->workaround_bugs==3 || s->avctx->fourcc== 'U' + ('M'<<8) + ('P'<<16) + ('4'<<24)){
if(s->time < s->last_non_b_time){
// fprintf(stderr, "header is not mpeg4 compatible, broken encoder, trying to workaround\n");
s->time_base++;
s->time+= s->time_increment_resolution;
}
}
s->pp_time= s->time - s->last_non_b_time;
s->last_non_b_time= s->time;