VSE: .flac sound file (only generated by Blender) show as clip length = 0 #46886
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Reference: blender/blender#46886
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System Information
Debian8 64bit
ffmpeg version 2.8.1
Blender Version
Broken: all 2.73 to 2.76.2
Short description of error
The same issue as in bug
Files generated by the ffmpeg could be added without any problem.
0000-0664.mkv
Changed status to: 'Open'
Added subscriber: @Photon
Added subscribers: @neXyon, @ideasman42, @mont29
@ideasman42, @neXyon, you should know about this?
Very interesting, just like the other bug, I can reproduce the problem with the official build but neither with my own nor my distro's (Arch) build. A flac file export is using libsndfile and not ffmpeg. Are you using the official build or the blender version coming with Debian? Either way, can you check if the bug appears with the respective other versions as well?
In case the Debian version has the bug too, can you check if the sndfile-convert program that comes with libsndfile usually is working properly?
All my test -> from .wav to .flac file. I try Blender(2.74) from Debian distribution and Blender(2.76.2) from builder.blender.org
if I convert test.wav file by sndfile-convert program, I can add .flac strip in Debian version and blender.org version. No problem, working properly.
if I add .wav strip in Debian version of blender, next Audio->Mixdown to .flac file, I can add .flac strip in Debian version and blender.org version. No problem, working properly.
if I add .wav strip in blender.org version, next Audio->Mixdown to .flac file, I can't add .flac strip in Debian version and blender.org version. Problem exist!
Summary: The problem exists only in builder.blender.org build. :-(
ps. Sorry for my English, it's not my mother tounge.
I think that version built by builder.blender.org is compiled without the support libsndfile library. Perhaps this is the cause of the problem.
Will it be changed? I am waiting for a response.
Added subscriber: @Sergey
I just talked to @Sergey on IRC and he told me that the official builds are built with libsndfile disabled, so it's ffmpeg causing the issue after all. Will try later to build blender with disabled libsndfile and check if I can reproduce the bug.
@Sergey just built these with libsndfile:
64 bit: https://builder.blender.org/builders/linux_glibc211_x86_64_scons/builds/1858
32 bit: https://builder.blender.org/builders/linux_glibc211_i386_scons/builds/1607
does this fix the bug for you @Photon?
How do I download the file, where it is download link? :-/
The link is https://builder.blender.org/download/
Oh, I thought it was separate build (for testing) just only for me.
I tried the 64bit version, now it working properly !!! Is now all new builds for linux will be made with libsndfile enabled?
Changed status from 'Open' to: 'Resolved'
Well it's the build bot, which is basically used for testing, official builds are built manually if I'm not completely wrong, but yeah from now on the future official will be built with libsndfile enabled.
Thanks @Sergey for handling this.