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I have a quicktime video recorded on a Atoms Shogun.

When I tried to play the file it is only playing the audio and no video is coming up at all.

Delving deeper, I found out that no codec for the video was embedded in the file, only audio.

Is there any way to add the file codec to it?


General
Complete name                    : L:\9e550a82-d3ed-460f-a10d-f25be5c87a03.mov
Format                           : MPEG-4
Format profile                   : QuickTime
Codec ID                         : qt  
File size                        : 33.3 GiB
Duration                         : 1h 52mn
Overall bit rate                 : 42.3 Mbps
Encoded date                     : UTC 2024-12-01 19:09:30
Tagged date                      : UTC 2024-12-01 19:09:30
Writing library                  : Apple QuickTime

Video
ID                               : 2
Duration                         : 1h 52mn
Bit rate mode                    : Constant
Bit rate                         : 36.0 Mbps
Width                            : 1 920 pixels
Height                           : 1 080 pixels
Display aspect ratio             : 16:9
Frame rate mode                  : Constant
Frame rate                       : 25.000 fps
Bits/(Pixel*Frame)               : 0.694
Stream size                      : 28.4 GiB (85%)
Language                         : English
Encoded date                     : UTC 2024-12-01 19:09:30
Tagged date                      : UTC 2024-12-01 19:09:30

Audio
ID                               : 1
Format                           : PCM
Format settings, Endianness      : Big
Format settings, Sign            : Unsigned
Codec ID                         : in24
Duration                         : 1h 52mn
Bit rate mode                    : Constant
Bit rate                         : 4 608 Kbps
Channel(s)                       : 4 channels
Sampling rate                    : 48.0 KHz
Bit depth                        : 24 bits
Stream size                      : 3.63 GiB (11%)
Language                         : English
Encoded date                     : UTC 2024-12-01 19:09:30
Tagged date                      : UTC 2024-12-01 19:09:30
  • Open the file in Mediainfo and show its full readout here. – Gyan Mar 30 '16 at 6:42
  • @Mulvya I have, which is where I saw the missing codec information. It is supposed to have Avid DNxHD but it is missing – markb Mar 30 '16 at 7:35
  • Yes, you have, but paste it here. – Gyan Mar 30 '16 at 7:36
  • @Mulvya sorry, its updated now – markb Mar 30 '16 at 7:52
  • I think it would be helpful if you described what happened and how you broke the file. If I should guess, I would think you tried to take out the video stream of a mxf file and messed up the file structure - but that's just a guess. In any case, I don't understand why you think you need dnxhd if mediainfo outputs your file as mp4. As far as I know dnxhd is not a valid codec to be encapsulated in a mp4 container. – Hans Meiser Mar 30 '16 at 20:15
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You can try to repair the file with ffmpeg, a free command-line tool, like so

ffmpeg -analyzeduration 1G -i input.mov -c copy -map 0 out.mov
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I would try two solutions, obviously on backups of the files, not the originals. First there is the 'untrunc' tool which tries to copy over additional information from a working file into a broken file: https://github.com/ponchio/untrunc

Then there is AtomicParsley which allows you to view file information on Mov / mp4 files on a very detailed level. Probably you can compare a working and a broken file and try to manually add the codec information.

http://atomicparsley.sourceforge.net

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If you need the Avid DNxHD codec, Avid offer it for free, for Quicktime (Mac and Windows): http://avid.force.com/pkb/articles/en_US/download/en423319

  • I don't need the codec itself, I need the codec data in the header of the file – markb Mar 30 '16 at 10:10

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