Question / Help "Cannot render file" (flv)

[Wylfen]

Hi!
I have recently encountered a problem with OBS when recording a file. After finishing recording, the file apparently ended up corrupted. I couldn't open it with any software (Tried: Classic Home Cinema Player, Win Media Player, Adobe After Effects, Win Movie Maker, Any Video Converter) and I couldn't remux it either. Classic Home Cinema showed the error message "cannot render file".
This has happened a lot when I closed OBS immediately after stopping the recording, however this time I kept it open and waited a few minutes before trying to play the recording.
Is there any way to prevent this from happening? Can I recover my file somehow (it's quite important)?
Here's the log of that session: https://gist.github.com/anonymous/56aa1c1f385d004ab5fd8ffc16001823
I noticed that it failed to load a couple of modules (lines 41-48), might that be the problem, and if so, how can I fix it?
Cheers, Wylfen

 

[pkv]

the dll not loaded are from the browser extension which you haven't installed. So no issue here.
Can you try to get infos from ffmpeg:
ffmpeg -loglevel debug -i input
This will spout useful info about the file (copy to pastebin and link here).
After that you could try to fix it with ffmpeg:
ffmpeg -i inputfile -c:v copy -c:a copy output.flv (or any other format, e.g. mp4 mkv ...)
ffmpeg will remux your file; this is sometimes enough to repair a file.

 

[Wylfen]

Here's what I got:

Spoiler

ffmpeg version git-2017-12-23-d02289c Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 7.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
libavutil 56. 6.100 / 56. 6.100
libavcodec 58. 8.100 / 58. 8.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 7.100 / 7. 7.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
Reading option '-i' ... matched as input url with argument 'input'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input url input.
Successfully parsed a group of options.
Opening an input file: input.
[NULL @ 0000024e6fa495a0] Opening 'input' for reading
[file @ 0000024e6fa343e0] Setting default whitelist 'file,crypto'
input: No such file or directory

I don't usually work with ffmpeg, how exactly do I enter the input file? I tried just copying the source "D:\Privat\_Videos\Speedpaints\AVI\2017-12-23_19-54-44", but that didn't work.

 

[pkv]

your file has no extension ?
it should be ffmpeg -i name_of_your_file.extension etc ...
(presumably name.flv , why does your file have no extension ?)

 

[Wylfen]

Oops, my mistake, I just forgot to add it.
Here's what I got as a reply: D:\Privat\_Videos\Speedpaints\AVI\2017-12-23_19-54-44.flv: Invalid data found when processing input

 

[pkv]

ok if ffmpeg can't read your file, IMO you're toast ... Can you try a new test recording in flv to check whether the issue was just at that time or is a deeper issue

 

[Wylfen]

Sorry for the late reply. I've done like 5 more recordings (each about 30 min), one of them has the same issue, the rest seem perfectly fine. Weird.

 

[Wylfen]

Alright I found out something that might help fixing the error. I usually save my recordings directly to an external disk (there's almost 1TB free space on there so that's no problem), but today when I tried saving a photoshop document while recording I got a "couldn't save because of a disk error". I immediately stopped recording and the recording is corrupted too. Checked my disk, everything perfectly fine, tried saving the psd again, worked without a problem.
I'll try to record directly to the C: drive next time, see if I still get the same error.