[FFmpeg-trac] #9293(undetermined:new): ffmpeg is unable to identify the aspect ratio of some video files

FFmpeg trac at avcodec.org
Thu Jun 17 17:49:42 EEST 2021


#9293: ffmpeg is unable to identify the aspect ratio of some video files
-------------------------------------+-------------------------------------
             Reporter:  strangiato   |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 Hi

 I use ffmpeg 2:4.4-4 on Arch Linux.

 My file manager called Dolphin is unable to display the aspect ratio of
 some video files when its detailed view mode is used.

 This issue was initially reported on KDE bug tracker, here is the link of
 the report:
 https://bugs.kde.org/show_bug.cgi?id=438098

 In the comment 2, KDE contributor Méven Car said that Dolphin uses ffmpeg
 to extract details of video files, that for some reason is unable to
 identify the aspect ratio of the test files attached in the bug report.

 How to reproduce:
 1. download the attached archive containing 2 test video files
 2. extract the downloaded archive
 3. run ffmpeg -i <any_video_file_extracted_in_the_step_2>
 {{{
 % ffmpeg -i output:
 The SAR (sample aspect ratior) is missing for video stream.

 video stream of 701D2C8E-A096-4BC7-9D97-2DA9C0321DB5.MOV fie:
 Stream #0:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
 bt709), 1280x720, 4730 kb/s, 29.99 fps, 29.97 tbr, 600 tbn, 1200 tbc
 (default)

 video stream of 2021-02-18\ 03-36-58.mkv file:
 Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive),
 2560x1080, 60 fps, 60 tbr, 1k tbn, 120 tbc (default)

 ffmpeg version 4.4
 built on Arch Linux
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9293>
FFmpeg <https://ffmpeg.org>
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