[FFmpeg-user] Fwd: OBS and OBS Portable Recording Into Same File Simultaneously
David Bayles
davidbayles at gmail.com
Fri Jun 26 08:14:43 EEST 2020
Perhaps another question: if I extract each and every frame as an image
file, then go through one by one and there is no still image resembling
what I filmed (i.e. every frame/picture is just solid green), does that
mean that the video is definitely unrecoverable? Or might there be another
way to recover the video?
On Fri, Jun 26, 2020 at 12:32 AM David Bayles <davidbayles at gmail.com> wrote:
> I tried this:
> C:\Users\David>ffmpeg -i "C:\Users\David\Downloads\2020-06-23 09-02-44
> corrupt.mkv" -vf select='eq(pict_type\,I)'
> "C:\Users\David\Downloads\2020-06-23 09-02-44 corrupt SELECT I-FRAMES.mkv"
> 2> "C:\Users\David\Downloads\2020-06-23 09-02-44 corrupt SELECT
> I-FRAMES.txt"
>
> And got this (video and log file):
>
> https://drive.google.com/drive/folders/1OMf6oeLIkYU1d05dPqO1tfOxI1_KnYGK?usp=sharing
>
> Is that what you meant to do? Any other ideas?
>
> Thanks!
>
> On Thu, Jun 25, 2020 at 11:43 PM David Bayles <davidbayles at gmail.com>
> wrote:
>
>> Trying this now! Thanks!
>>
>> On Thu, Jun 25, 2020 at 11:03 PM Leo Butler via ffmpeg-user <
>> ffmpeg-user at ffmpeg.org> wrote:
>>
>>> David Bayles <davidbayles at gmail.com> writes:
>>>
>>> > Corrupted video file, FFprobe output text file, and FFmpeg output text
>>> file
>>> > are all available to download here:
>>> >
>>> https://drive.google.com/drive/folders/1R0Y5plgkhTWWFNNKgSNJ5yitpKQbIKgg?usp=sharing
>>> >
>>> > I'm hoping there is a way to extract good video and audio from this
>>> video
>>> > file, this was for a very important job that is impossible to do
>>> again. The
>>> > video linked is a 1 minute recreation of the exact same problem... the
>>> > actual video file is confidential (for a legal court case) and is much
>>> > longer/larger. I used the exact same settings, the only difference was
>>> the
>>> > window OBS was capturing (I used a YouTube video as opposed to the
>>> > videoconference software window used for the deposition).
>>>
>>> I am no expert, but for the video, I would try using the select filter
>>> to capture the I-frames.
>>>
>>> https://ffmpeg.org/ffmpeg-all.html#toc-select_002c-aselect
>>>
>>> See the 4th example in the examples section.
>>>
>>> Leo
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>>
>>
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