[Libav-user] Seeking into an mxf file

Patrick Cusack patrickcusack at mac.com
Fri Mar 18 20:57:36 CET 2016

I am trying to seek into an mxf file and am not having any success. I know that my timebase numerator is 1001 and my duration is 10808.I should be able to seek to frame 5 with the following:

	int frame = 5;

    int flgs = AVSEEK_FLAG_ANY;
    int seek_ts = frame * vStream->time_base.num;
    if(av_seek_frame(pFormatCtx, videoStream, seek_ts, flgs) < 0){
        status = K_SEEK_FAILED;

When the code begins to seek, it returns a value less than 0 and usually takes a long time. Can anyone see what I am doing wrong?


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