this should be valid for audio too

Originally committed as revision 13517 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/movenc.c

@@ -1607,14 +1607,12 @@ static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
     trk->cluster[trk->entry].dts = pkt->dts;
     trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
 
-    if(enc->codec_type == CODEC_TYPE_VIDEO) {
         if (pkt->dts != pkt->pts)
             trk->hasBframes = 1;
         trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
         trk->cluster[trk->entry].key_frame = !!(pkt->flags & PKT_FLAG_KEY);
         if(trk->cluster[trk->entry].key_frame)
             trk->hasKeyframes++;
-    }
     trk->entry++;
     trk->sampleCount += samplesInChunk;
     mov->mdat_size += size;