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Warn when falling back to unreliable UMF fps tag.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This commit is contained in:
Reimar Döffinger 2011-08-03 20:05:59 +02:00
parent 46eaaad8dd
commit 1816addc4e

View File

@ -346,6 +346,8 @@ static int gxf_header(AVFormatContext *s, AVFormatParameters *ap) {
avio_skip(pb, 0x30); // payload description
fps = fps_umf2avr(avio_rl32(pb));
if (!main_timebase.num || !main_timebase.den) {
av_log(s, AV_LOG_WARNING, "No FPS track tag, using UMF fps tag."
" This might give wrong results.\n");
// this may not always be correct, but simply the best we can get
main_timebase.num = fps.den;
main_timebase.den = fps.num * 2;