avoid division by zero in av_find_stream_info() when no time base is set

Originally committed as revision 9637 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago · b3fc092548
parent 7eed4aef83
commit b3fc092548
1 changed files with 1 additions and 1 deletions
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@ -1891,7 +1891,7 @@ int av_find_stream_info(AVFormatContext *ic)
             (st->codec->codec_id == CODEC_ID_MPEG4 && !st->need_parsing))*/)
            try_decode_frame(st, pkt->data, pkt->size);

-        if (av_rescale_q(codec_info_duration[st->index], st->time_base, AV_TIME_BASE_Q) >= ic->max_analyze_duration) {
+        if (st->time_base.den > 0 && av_rescale_q(codec_info_duration[st->index], st->time_base, AV_TIME_BASE_Q) >= ic->max_analyze_duration) {
            break;
        }
        count++;