[FFmpeg-cvslog] ffmpeg: check timebase validity before considering it to be used for stream copy

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Mon Sep 10 20:52:40 2012 +0200| [5829b7d29e34d60aff2319e8b5c296d36c344d23] | committer: Michael Niedermayer

ffmpeg: check timebase validity before considering it to be used for stream copy

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5829b7d29e34d60aff2319e8b5c296d36c344d23
---

 ffmpeg.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ffmpeg.c b/ffmpeg.c
index 9935a1e..18b7383 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -2055,7 +2055,8 @@ static int transcode_init(void)
                       && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
                       && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
             ) {
-                if(   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
+                if(   copy_tb<0 && icodec->time_base.den
+                                && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
                                 && av_q2d(ist->st->time_base) < 1.0/500
                    || copy_tb==0){
                     codec->time_base = icodec->time_base;