[FFmpeg-trac] #1732(avformat:new): avienc: inserts too many (>90%) empty packets

FFmpeg trac at avcodec.org
Mon Sep 17 21:25:39 CEST 2012

#1732: avienc: inserts too many (>90%) empty packets
             Reporter:  Andrew      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  avi         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |

Comment (by reimar):

 I believe that behaviour is as expected/intended.
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 640x480 [SAR
 1:1 DAR 4:3], q=2-31, 2k tbn, 2k tbc
 Your stream time base is 2kHz, the only way to handle that for AVI is to
 have 2000 packets for each second of video. The 2kHz time base is
 necessary to accurately represent all possible time stamps of the input
 stream (actually 1 kHz might be enough, but 1 kHz or 2 kHz does not make
 much of a difference).
 If that is not what you want, specify whatever time base/frame rate you
 want FFmpeg to use.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1732#comment:3>
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