[libav-bugs] [Bug 463] New: some bug with bitrate when time_base.num > 1

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Sun Mar 3 13:19:27 CET 2013


https://bugzilla.libav.org/show_bug.cgi?id=463

           Summary: some bug with bitrate when time_base.num > 1
           Product: Libav
           Version: 9
          Platform: All
        OS/Version: Windows
            Status: NEW
          Severity: critical
          Priority: Normal
         Component: libavcodec
        AssignedTo: bugzilla at libav.org
        ReportedBy: hootfat at gmail.com


when set time_base.num > 1, for example 30000 1001 (29.97 fps) - bitrate got
some wrong value (h264 encoding), pts set by pic.pts+=av_rescale_q(1,
st.codec.time_base, st.time_base); (0,1001,2002,3003,...), can you help me
solve this problem? or that is normal behavior?

attached file
4_120.mp4 - sample which time_base set to (4,120) (977 kb)
1_25.mp4  - sample which time_base set to (1,25) (345 kb)

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