1. 01 Oct, 2016 1 commit
    • wm4's avatar
      ffmpeg: use new decode API · 8f6f2322
      wm4 authored
      This is a bit messy, mainly due to timestamp handling.
      
      decode_video() relied on the fact that it could set dts on a flush/drain
      packet. This is not possible with the old API, and won't be. (I think
      doing this was very questionable with the old API. Flush packets should
      not contain any information; they just cause a FIFO to be emptied.) This
      is replaced with checking the best_effort_timestamp for AV_NOPTS_VALUE,
      and using the suggested DTS in the drain case.
      
      The modified tests (fate-cavs and others) still fails due to dropping
      the last frame. This happens because the timestamp of the last frame
      goes backwards (ffprobe -show_frames shows the same thing). I suspect
      that this "worked" due to the best effort timestamp logic picking the
      DTS over the decreasing PTS. Since this logic is in libavcodec (where
      it probably shouldn't be), this can't be easily fixed. The timestamps
      of the cavs samples are weird anyway, so I chose not to fix it.
      
      Another strange thing is the timestamp handling in the video path of
      process_input_packet (after the decode_video() call). It looks like
      the code to increase next_dts and next_pts should be run every time
      a frame is decoded - but it's needed even if output is skipped.
      8f6f2322
  2. 13 Apr, 2016 1 commit
  3. 28 Jun, 2014 1 commit
  4. 30 Dec, 2012 1 commit