diff --git a/vpxdec.c b/vpxdec.c index 513d7bd57..1860474cb 100644 --- a/vpxdec.c +++ b/vpxdec.c @@ -501,6 +501,15 @@ webm_guess_framerate(struct input_ctx *input, unsigned int i; uint64_t tstamp = 0; + /* Check to see if we can seek before we parse any data. */ + if (nestegg_track_seek(input->nestegg_ctx, input->video_track, 0)) { + fprintf(stderr, + "WARNING: Failed to guess framerate (no Cues), set to 30fps.\n"); + *fps_num = 30; + *fps_den = 1; + return 0; + } + /* Guess the framerate. Read up to 1 second, or 50 video packets, * whichever comes first. */