Fix muxing mjpeg in swf.

13 years ago · 7680d99b43
parent ac0f1ae64b
commit 7680d99b43
1 changed files with 2 additions and 0 deletions
--- a/libavformat/swfenc.c
+++ b/libavformat/swfenc.c
@ -495,8 +495,10 @@ static int swf_write_trailer(AVFormatContext *s)
        avio_wl32(pb, file_size);
        avio_seek(pb, swf->duration_pos, SEEK_SET);
        avio_wl16(pb, swf->video_frame_number);
+        if (swf->vframes_pos) {
        avio_seek(pb, swf->vframes_pos, SEEK_SET);
        avio_wl16(pb, swf->video_frame_number);
+        }
        avio_seek(pb, file_size, SEEK_SET);
    }
    return 0;