[SCM] libav/experimental: autodetect UMP4 (by adding a fourcc field to AVCodecContext)
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:33:25 UTC 2013
The following commit has been merged in the experimental branch:
commit 0c2dd16eb65bb0ade97346aabecc4762f6bcac31
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Thu Sep 26 23:27:22 2002 +0000
autodetect UMP4 (by adding a fourcc field to AVCodecContext)
Originally committed as revision 974 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 85a9d9a..0d2c342 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -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
diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 86a6f07..a6d73d2 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -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;
--
Libav/FFmpeg packaging
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