avformat/utils: fix duration_fields calculation when need_parsing=0

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 4dd9bb74692aa5ec4c0fd3d68c4f401817dc53d7..16741d8919f811b96266b2f018780863ba49fffe 100644 (file)
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2858,7 +2858,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
             }
             if (pkt->duration) {
                 st->info->codec_info_duration        += pkt->duration;
-                st->info->codec_info_duration_fields += st->parser && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
+                st->info->codec_info_duration_fields += st->parser && st->need_parsing && st->codec->ticks_per_frame==2 ? st->parser->repeat_pict + 1 : 2;
             }
         }
 #if FF_API_R_FRAME_RATE