[FFmpeg-user] Fwd: OBS and OBS Portable Recording Into Same File Simultaneously

[David Bayles]

> showinfo operates upon decoded frames. This inspection will have to be
> done at the container level using a forensic tool which can identify
> start and end of block structures in Matroska.

Can you suggest a forensic tool or even a company/person that could help me recover this? I’d be willing to pay for this service/tool.

On Fri, Jun 26, 2020 at 5:23 AM Gyan Doshi <ffmpeg at gyani.pro> wrote:
>
>
> On 26-06-2020 02:08 pm, Moritz Barsnick wrote:
> > You could try to observe at which point ffmpeg detects the first errors
> > (the showinfo filter will indicate the byte position ffmpeg is
> > operating on), and from there remove blocks of 512, 1024, 2048 bytes,
> > hoping that after removal of some of them, you hit a proper block
> > again, and ffmpeg will no longer "lose sync" at that point, until again
> > a later point in the file.
>
> showinfo operates upon decoded frames. This inspection will have to be
> done at the container level using a forensic tool which can identify
> start and end of block structures in Matroska. This assumes that the two
> write operations didn't write on top of each other. One saving grace
> could be that OBS, like ffmpeg, flushes data to files in blocks of 256
> kB, although I don't know if this is the case.
>
> Gyan
>
>
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".