framerate check

Originally committed as revision 3869 to svn://svn.ffmpeg.org/ffmpeg/trunk
20 years ago · e8ea90123d
parent 46f2f05f59
commit e8ea90123d
1 changed files with 5 additions and 0 deletions
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@ -1049,6 +1049,11 @@ int MPV_encode_init(AVCodecContext *avctx)
    if(s->avctx->thread_count > 1)
        s->rtp_mode= 1;

+    if(!avctx->frame_rate || !avctx->frame_rate_base){
+        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
+        return -1;
+    }
+        
    i= ff_gcd(avctx->frame_rate, avctx->frame_rate_base);
    if(i > 1){
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");