Can I repair with ffmpeg a mp4 file where the moov atom is not found ?
Hello ffmpeg-community, I want to know if it's possible to repair or to convert a mp4 file where the moov atom is not found ? I tried to find all the internet for a solution but I didn't found nothing, also tried to solve it with various apps. I read something that is possible to copy the moov atom from a same source mp4 file tot he broken one but I don't how it works really. I thank yo indeed for a solution. Greets sado
Moov atom not found or positioned at the EOF (end of file)? Thanks and Regards, Aritrim Basu +91 800 1000 123 [If the mobile is not reachable, drop me an email. Often that receives a faster response.] On Mon, Nov 27, 2017 at 11:10 AM, Sandro Di Domenico <sado23@web.de> wrote:
Hello ffmpeg-community,
I want to know if it's possible to repair or to convert a mp4 file where the moov atom is not found ?
I tried to find all the internet for a solution but I didn't found nothing, also tried to solve it with various apps.
I read something that is possible to copy the moov atom from a same source mp4 file tot he broken one but I don't how it works really.
I thank yo indeed for a solution.
Greets
sado
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2017-11-27 6:40 GMT+01:00 Sandro Di Domenico <sado23@web.de>:
I want to know if it's possible to repair or to convert a mp4 file where the moov atom is not found ?
In rare cases, you can do this manually (if you have a similar file), in other (even more rare) cases, mov files do not have a moov atom, FFmpeg will not be helpful though. Carl Eugen
On Mon, Nov 27, 2017 at 4:33 PM, Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
2017-11-27 6:40 GMT+01:00 Sandro Di Domenico <sado23@web.de>:
I want to know if it's possible to repair or to convert a mp4 file where the moov atom is not found ?
In rare cases, you can do this manually (if you have a similar file), in other (even more rare) cases, mov files do not have a moov atom, FFmpeg will not be helpful though.
Yes, it is possible. The linux program is untrunc, and you might have to compile it yourself. http://vcg.isti.cnr.it/~ponchio/untrunc.php. Essentially, it reconstructs it the best it can using the information to go by off of another MP4 file - it works best if you have a working MP4 file from the same system/settings.
On 27 November 2017 at 22:37, Steve Boyer <steveboyer85@gmail.com> wrote:
Yes, it is possible. The linux program is untrunc, and you might have to compile it yourself. http://vcg.isti.cnr.it/~ponchio/untrunc.php. Essentially, it reconstructs it the best it can using the information to go by off of another MP4 file - it works best if you have a working MP4 file from the same system/settings.
I suddenly had a use for this, so thank you Steve (and Sandro for asking the question). The link included 404s, but the project can be found on GitHub: https://github.com/ponchio/untrunc (with the note that there is an Arch AUR package!) (In case anyone is interested: I have been uploading files to Youtube, and unexpectedly got the error "Upload failed: Can't process file". For some reason, a couple of the GoPro clips out of the dozen or so I had been concat-demuxing for upload somehow lost their moov atom according to ffprobe. Go figure. Since I have similarly-produced files, untrunc might work. Sadly, I was hit by it's issue #30: https://github.com/ponchio/untrunc/issues/30 Hey ho.) Cheers, Rob
participants (5)
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Basu A -
Carl Eugen Hoyos -
Rob Hallam -
Sandro Di Domenico -
Steve Boyer