mp4 file repair - UPDATE 1

[Mailing List SVR]

Hi,

if you are using GStreamer to create your mp4 recording you can set 
moov-recovery-file property on qtmux and  then use qtmoovrecover element 
if the recording is unexpectedly interrupted to recover it,

Nicola

Il 08/11/2017 19:43, William Salibrici ha scritto:
>
> I am creating mp4 recordings in a known format.
>
> Below is the discover tool result [short version] for a test recording:
>
> Topology:
>
>   container: Quicktime
>
>     audio: MPEG-4 AAC
>
>     video: H.264 (Constrained Baseline Profile)
>
> Properties:
>
>   Duration: 0:00:48.000000000
>
>   Seekable: yes
>
>   Tags:
>
>       audio codec: MPEG-4 AAC audio
>
>       bitrate: 21346
>
>       language code: en
>
>       datetime: 2017-10-25T15:04:50Z
>
>       container format: ISO MP4/M4A
>
>       video codec: H.264 / AVC
>
>       maximum bitrate: 5222160
>
> The problem is that sometimes I will get a recording that was not 
> finalized so the data is there but the recording is unreadable.
>
> However, the audio and video formats are known.
>
> The question is this: does anyone know of a repair tool that can go 
> over the existing data in the recording file and create the proper 
> moov atom at the end of the file?
>
> Thank you for your help,
>
> --Bill
>
> UPDATE 1 ->
>
> I failed to clarify in my first post that I’m interested to know if 
> anyone in the gstreamer development community has done any kind of mp4 
> file repair using gstreamer elements or gstreamer source code. I can 
> google for repair tools but that’s not what I want.
>
> I need some c/c++ code to do this repair. I can dig into the mp4mux 
> and discoverer source code to see what’s going on but that’s a pretty 
> big task. I’m thinking if anyone has already done some work in this 
> area I could avoid reinventing the wheel so to speak.
>
> Sorry about that.
>
> Thanks again for any help,
>
> Bill
>
>
>
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