[FFmpeg-trac] #5271(undetermined:new): avid dv100: wrong resolutions

FFmpeg trac at avcodec.org
Fri Feb 26 23:08:41 CET 2016

#5271: avid dv100: wrong resolutions
             Reporter:  ami_stuff    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0

Comment (by ami_stuff):


 "Avid DV100 Codec — Avid's implementation of the DVCPro HD codec. DVCPro
 HD has 8-bit color depth and has chroma subsapling of 4:2:2. It's a lossy
 codec, and typically only works at 29.97FPS or 25FPS. Resolutions are
 either 960x720 for 720p video or 1440x1080 for 1080i video. Bitrate is
 locked at 100MbPS."

 so maybe avid codec really stores 960x720 and 1440x1080 resolutions in the
 file, but at decoding rescales video to hd and full hd (that's why
 quicktime reports 1280x720 and 1920x1080).


Ticket URL: <https://trac.ffmpeg.org/ticket/5271#comment:1>
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