Hello, does anyone have a clue how to determine the frame count of an MPEG file that has:
1. nb_frames == 0 in AVStream 2. duration value in AVStream is only the calculated value of filesize and bitrate In my test cases the duration value gives only about 80% of the real MPEG video duration and so I get a too small value for its frame count when I compute duration with time_base values. When I try to position in the file with av_seek_frame with a very high target position and flags AVSEEK_FLAG_ANY, AVSEEK_FLAG_BACKWARD set I get a cur_dts value in AVStream that matches the real frame count ... but: The whole file will be read then which takes some minutes on a 4.3G file. AVSEEK_FLAG_BYTE seems to work w'out reading the file but I don't get a valid cur_dts value in this case. Is there any way to get the frame count with libav w'out reading the whole file? Regards, Konran _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
