[SCM] libav/experimental: fix codec timebase and timestamps

siretart at users.alioth.debian.org siretart at users.alioth.debian.org
Sun Jun 30 15:49:58 UTC 2013


The following commit has been merged in the experimental branch:
commit 94c8fbdcad29548f7ba38c4ced39dbe19ef07499
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Mon Aug 14 18:17:14 2006 +0000

    fix codec timebase and timestamps
    
    Originally committed as revision 5998 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/h261.c b/libavcodec/h261.c
index 0f0abef..39fc66d 100644
--- a/libavcodec/h261.c
+++ b/libavcodec/h261.c
@@ -781,7 +781,14 @@ static int h261_decode_picture_header(H261Context *h){
     }
 
     /* temporal reference */
-    s->picture_number = get_bits(&s->gb, 5); /* picture timestamp */
+    i= get_bits(&s->gb, 5); /* picture timestamp */
+    if(i < (s->picture_number&31))
+        i += 32;
+    s->picture_number = (s->picture_number&~31) + i;
+
+    s->avctx->time_base= (AVRational){1001, 30000};
+    s->current_picture.pts= s->picture_number;
+
 
     /* PTYPE starts here */
     skip_bits1(&s->gb); /* split screen off */
@@ -998,10 +1005,6 @@ assert(s->current_picture.pict_type == s->pict_type);
     *pict= *(AVFrame*)s->current_picture_ptr;
     ff_print_debug_info(s, pict);
 
-    /* Return the Picture timestamp as the frame number */
-    /* we substract 1 because it is added on utils.c    */
-    avctx->frame_number = s->picture_number - 1;
-
     *data_size = sizeof(AVFrame);
 
     return get_consumed_bytes(s, buf_size);

-- 
Libav/FFmpeg packaging



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