It is not supposed to be set outside of lavc.

Fixes a divide by zero when the stored framerate is 0.
---
 libavformat/swfdec.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/libavformat/swfdec.c b/libavformat/swfdec.c
index c194310..71346de 100644
--- a/libavformat/swfdec.c
+++ b/libavformat/swfdec.c
@@ -113,7 +113,6 @@ static int swf_read_packet(AVFormatContext *s, AVPacket 
*pkt)
             vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
             vst->codec->codec_id = ff_codec_get_id(swf_codec_tags, 
avio_r8(pb));
             avpriv_set_pts_info(vst, 16, 256, swf->frame_rate);
-            vst->codec->time_base = (AVRational){ 256, swf->frame_rate };
             len -= 8;
         } else if (tag == TAG_STREAMHEAD || tag == TAG_STREAMHEAD2) {
             /* streaming found */
@@ -186,7 +185,6 @@ static int swf_read_packet(AVFormatContext *s, AVPacket 
*pkt)
                 vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
                 vst->codec->codec_id = CODEC_ID_MJPEG;
                 avpriv_set_pts_info(vst, 64, 256, swf->frame_rate);
-                vst->codec->time_base = (AVRational){ 256, swf->frame_rate };
                 st = vst;
             }
             avio_rl16(pb); /* BITMAP_ID */
-- 
1.7.9

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