vpxdec: Fix webm fps check.
If the webm file did not have a Cues then vpxdec would fail
when creating a y4m file. If there is no Cues element print
out a warning and set fps to 30.
Change-Id: Ieea7040265dfdac7dff4ccf917c6f756160a96bc
diff --git a/vpxdec.c b/vpxdec.c
index 513d7bd..1860474 100644
--- a/vpxdec.c
+++ b/vpxdec.c
@@ -501,6 +501,15 @@
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.
*/
