[FFmpeg-cvslog] r17656 - trunk/libavformat/utils.c

[cehoyos]

Author: cehoyos
Date: Sat Feb 28 14:14:46 2009
New Revision: 17656

Log:
Improve frame rate guessing for streams with two fields per frame.

Patch by Ivan Schreter, schreter gmx net

Modified:
   trunk/libavformat/utils.c

Modified: trunk/libavformat/utils.c
==============================================================================
--- trunk/libavformat/utils.c	Sat Feb 28 09:38:33 2009	(r17655)
+++ trunk/libavformat/utils.c	Sat Feb 28 14:14:46 2009	(r17656)
@@ -2115,6 +2115,11 @@ int av_find_stream_info(AVFormatContext 
             int64_t last= last_dts[index];
             int64_t duration= pkt->dts - last;
 
+            if (st->codec->ticks_per_frame == 2 &&
+                st->parser &&
+                st->parser->repeat_pict == 0)
+                    duration *= 2;  // two fields are needed per frame
+
             if(pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && duration>0){
                 double dur= duration * av_q2d(st->time_base);