VSE:Sound Clip with some .flac sound file show as length=0 #38719

New Issue

mato T · 2014-02-19T12:10:55+01:00

mato T commented

2014-02-19 12:10:55 +01:00

System Information
OS:Fedora19
GPU:AMD Radeon HD 7750

Blender Version
2.69.8 8094ac9

Short description of error
VSE:Sound Cilp with .flac sound file ( generated by Blender ) show as clip length = 0.

Exact steps for others to reproduce the error

Put some sound clip on VSE and mixdown it. ( or download this file > https://dl.dropboxusercontent.com/u/67560987/testfile.flac)
2.Open the generated sound file with VSE.

**System Information** OS:Fedora19 GPU:AMD Radeon HD 7750 **Blender Version** 2.69.8 8094ac9 **Short description of error** VSE:Sound Cilp with .flac sound file ( generated by Blender ) show as clip length = 0. **Exact steps for others to reproduce the error** 1. Put some sound clip on VSE and mixdown it. ( or download this file > https://dl.dropboxusercontent.com/u/67560987/testfile.flac) 2.Open the generated sound file with VSE.

mato T commented

2014-02-19 12:10:55 +01:00

Changed status to: 'Open'

mato T commented

2014-02-19 12:10:55 +01:00

Added subscriber: @mato_sus304

Sergey Sharybin self-assigned this 2014-02-19 13:56:06 +01:00

Sergey Sharybin removed their assignment 2014-02-21 09:22:31 +01:00

Joerg Mueller was assigned by Sergey Sharybin

2014-02-21 09:22:31 +01:00

Sergey Sharybin commented

2014-02-21 09:22:31 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-02-21 09:22:31 +01:00

It's an issue of mixdown by the looks of it. The file doesn't contain proper duration or timebase.

Re-assigning to our audio guru.

It's an issue of mixdown by the looks of it. The file doesn't contain proper duration or timebase. Re-assigning to our audio guru.

Joerg Mueller commented

2014-02-21 09:27:52 +01:00

Changed status from 'Open' to: 'Archived'

Joerg Mueller closed this issue

2014-02-21 09:27:52 +01:00

Joerg Mueller commented

2014-02-21 09:27:58 +01:00

This flac file is damaged! You can fix what is there for example with

ffmpeg -i testfile.flac testfile2.flac

but I fear that part of the end is missing.

Closing

This flac file is damaged! You can fix what is there for example with ffmpeg -i testfile.flac testfile2.flac but I fear that part of the end is missing. Closing

mato T commented

2014-02-21 12:00:53 +01:00

Thanks for the answer. I understand it's an issue of flac file.
But this flac file is just generated from blender. And this bug happens every time when I mixdown the audio file on blender.
So...Am I have to fix the audio file every time I mixdown the flac file on blender?

Thanks for the answer. I understand it's an issue of flac file. But this flac file is just generated from blender. And this bug happens every time when I mixdown the audio file on blender. So...Am I have to fix the audio file every time I mixdown the flac file on blender?

Sergey Sharybin commented

2014-02-21 18:18:23 +01:00

Changed status from 'Archived' to: 'Open'

Sergey Sharybin reopened this issue

2014-02-21 18:18:23 +01:00

Sergey Sharybin commented

2014-02-21 18:18:23 +01:00

Added subscriber: @neXyon

Sergey Sharybin commented

2014-02-21 18:18:23 +01:00

@neXyon, blender shall not produce files it couldn't read. This is to be investigated.

Joerg Mueller commented

2014-03-05 00:42:56 +01:00

Is this fixed with the recent changes to the AVCODEC_ENCODE_AUDIO_2 changes?

mato T commented

2014-03-08 06:55:59 +01:00

I tried Blender git f03df4f and ffmpeg version N-61155-g61ff043. But it looks like same trouble happens.

I tried Blender git f03df4f and ffmpeg version N-61155-g61ff043. But it looks like same trouble happens.

Joerg Mueller commented

2014-03-11 14:19:50 +01:00

I still cannot reproduce the issue, can you try the official RC build for 2.70? http://download.blender.org/release/Blender2.70/

I also don't know how you get that ffmpeg version you wrote, I have:

% ffmpeg -version
ffmpeg version 2.1.4

If it still happens can you upload a minimalistic .blend file with a packed sound that produces this error on audio mixdown to flac?

Regards

I still cannot reproduce the issue, can you try the official RC build for 2.70? http://download.blender.org/release/Blender2.70/ I also don't know how you get that ffmpeg version you wrote, I have: % ffmpeg -version ffmpeg version 2.1.4 If it still happens can you upload a minimalistic .blend file with a packed sound that produces this error on audio mixdown to flac? Regards

mato T commented

2014-03-16 15:25:39 +01:00

I noticed that this issue depends on platform. I tried Blender 2.70 RC2 on Windows7 64bit and it works fine.
But on Linux ( I tried Blender 2.70RC2 64bit on Fedora20 and Ubuntu12.04 LTS) this error caused.

This error caused by this .blend file.
T38719_f1.blend

Regards

I noticed that this issue depends on platform. I tried Blender 2.70 RC2 on Windows7 64bit and it works fine. But on Linux ( I tried Blender 2.70RC2 64bit on Fedora20 and Ubuntu12.04 LTS) this error caused. This error caused by this .blend file. [T38719_f1.blend](https://archive.blender.org/developer/F81426/T38719_f1.blend) Regards

Joerg Mueller commented

2014-03-16 16:02:50 +01:00

Can you still add which ffmpeg version you're using on the linux distributions? It still works fine here on arch linux...

mato T commented

2014-03-16 17:07:02 +01:00

Fedora20

$ ffmpeg -version
ffmpeg version 2.1.4
built on Feb 25 2014 08:24:47 with gcc 4.8.2 (GCC) 20131212 (Red Hat 4.8.2-7)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
libavutil      52. 48.101 / 52. 48.101
libavcodec     55. 39.101 / 55. 39.101
libavformat    55. 19.104 / 55. 19.104
libavdevice    55.  5.100 / 55.  5.100
libavfilter     3. 90.100 /  3. 90.100
libavresample   1.  1.  0 /  1.  1.  0
libswscale      2.  5.101 /  2.  5.101
libswresample   0. 17.104 /  0. 17.104
libpostproc    52.  3.100 / 52.  3.100

Ubuntu12.04LTS

$ ffmpeg -version
ffmpeg version 0.8.9-4:0.8.9-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
  built on Nov  9 2013 19:08:00 with gcc 4.6.3

THIS PROGRAM IS DEPRECATED

This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
ffmpeg 0.8.9-4:0.8.9-0ubuntu0.12.04.1
libavutil    51. 22. 1 / 51. 22. 1
libavcodec   53. 35. 0 / 53. 35. 0
libavformat  53. 21. 1 / 53. 21. 1
libavdevice  53.  2. 0 / 53.  2. 0
libavfilter   2. 15. 0 /  2. 15. 0
libswscale    2.  1. 0 /  2.  1. 0
libpostproc  52.  0. 0 / 52.  0. 0

Fedora20 ``` $ ffmpeg -version ffmpeg version 2.1.4 built on Feb 25 2014 08:24:47 with gcc 4.8.2 (GCC) 20131212 (Red Hat 4.8.2-7) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect libavutil 52. 48.101 / 52. 48.101 libavcodec 55. 39.101 / 55. 39.101 libavformat 55. 19.104 / 55. 19.104 libavdevice 55. 5.100 / 55. 5.100 libavfilter 3. 90.100 / 3. 90.100 libavresample 1. 1. 0 / 1. 1. 0 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 ``` Ubuntu12.04LTS ``` $ ffmpeg -version ffmpeg version 0.8.9-4:0.8.9-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers built on Nov 9 2013 19:08:00 with gcc 4.6.3 ``` ***THIS PROGRAM IS DEPRECATED*** ``` This program is only provided for compatibility and will be removed in a future release. Please use avconv instead. ffmpeg 0.8.9-4:0.8.9-0ubuntu0.12.04.1 libavutil 51. 22. 1 / 51. 22. 1 libavcodec 53. 35. 0 / 53. 35. 0 libavformat 53. 21. 1 / 53. 21. 1 libavdevice 53. 2. 0 / 53. 2. 0 libavfilter 2. 15. 0 / 2. 15. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 52. 0. 0 / 52. 0. 0 ```

Sergey Sharybin commented

2014-05-29 11:03:39 +02:00

We did some fixes in blender. Does the issue happens with official builds from blender.org still?

mato T commented

2014-05-29 18:09:29 +02:00

I tried Blender 2.70a and 2.71testbuild2 (both x86_64, download from blender.org ) on Fedora20 ,the issue still happens.
I also tried change cmake flags to build blender, but it doesn't work well.

I tried Blender 2.70a and 2.71testbuild2 (both x86_64, download from blender.org ) on Fedora20 ,the issue still happens. I also tried change cmake flags to build blender, but it doesn't work well.

Sergey Sharybin commented

2014-05-29 18:19:31 +02:00

@mato_sus304, the thing is, the original file was corrupted. Opening it in newer blender wouldn't help. You need to re-create the file from blender. Is it something you did?

mato T commented

2014-05-29 18:39:21 +02:00

I see. At last post, I tried the blend file made by older blender. So I re-create the file by newer blender.( T38719_f2.blend create by Blender2.71testbuild2)
But it seems like same thing, The issue still happens.

I see. At last post, I tried the blend file made by older blender. So I re-create the file by newer blender.( [T38719_f2.blend](https://archive.blender.org/developer/F91862/T38719_f2.blend) create by Blender2.71testbuild2) But it seems like same thing, The issue still happens.

Jonata Bolzan commented

2014-07-24 13:47:26 +02:00

Added subscriber: @jonata

Jonata Bolzan commented

2014-07-24 13:47:26 +02:00

I can confirm that this issue is still present in Blender 2.71.

Joerg Mueller commented

2014-07-29 11:18:40 +02:00

And I still couldn't confirm this problem with my own blender builds and the one from my distro, but I just downloaded the official release from the website and indeed this bug is still present. Maybe it's a problem of the ffmpeg libraries used for the official build @Sergey?

Jonata Bolzan commented

2014-07-29 15:19:08 +02:00

We can see this issue while exporting a sequence from VSE in h264 format with FLAC as audio codec. The result is a file that does not contain "regular" flac audio stream and is mute even in VLC. What I need to do in this case is convert the file like this:

avconv -i final_file.avi -c:v copy -c:a flac converted_file.mkv

We can see this issue while exporting a sequence from VSE in h264 format with FLAC as audio codec. The result is a file that does not contain "regular" flac audio stream and is mute even in VLC. What I need to do in this case is convert the file like this: avconv -i final_file.avi -c:v copy -c:a flac converted_file.mkv

Kunda commented

2015-02-02 00:31:43 +01:00

Added subscriber: @Kunda

Jonata Bolzan commented

2015-02-04 13:15:11 +01:00

This bug is still present on Blender 2.73

Joerg Mueller commented

2015-02-06 04:13:19 +01:00

I've just conducted an experiment with ffmpeg, outside of blender running the following commands:

ffmpeg -i input.mp3 -c:a flac test.avi
ffmpeg -i test.avi test.wav
ffmpeg -i test.avi test.mkv
ffmpeg -i test.avi -c:a flac test.mkv
ffmpeg -i test.avi -c:a flac test.flac

I tried to play each output file with vlc and only the .flac and .wav file play. Using mplayer however all output files were played, but then again they use ffmpeg in the background.

Converting from the input file directly:

ffmpeg -i input.mp3 test.wav
ffmpeg -i input.mp3 test.mkv
ffmpeg -i input.mp3 -c:a flac test.mkv
ffmpeg -i input.mp3 -c:a flac test.flac

All resulting files can be played back properly.

At fault here is the avi container, which, besides outdated, doesn't support flac really. I don't know why this is the default container selected in blender, maybe because it's age results in a widespread compatibility (for the codecs supported...). I recommend you to use matroska directly as output container if you want flac as audio codec!

I've just conducted an experiment with ffmpeg, outside of blender running the following commands: ffmpeg -i input.mp3 -c:a flac test.avi ffmpeg -i test.avi test.wav ffmpeg -i test.avi test.mkv ffmpeg -i test.avi -c:a flac test.mkv ffmpeg -i test.avi -c:a flac test.flac I tried to play each output file with vlc and only the .flac and .wav file play. Using mplayer however all output files were played, but then again they use ffmpeg in the background. Converting from the input file directly: ffmpeg -i input.mp3 test.wav ffmpeg -i input.mp3 test.mkv ffmpeg -i input.mp3 -c:a flac test.mkv ffmpeg -i input.mp3 -c:a flac test.flac All resulting files can be played back properly. At fault here is the avi container, which, besides outdated, doesn't support flac really. I don't know why this is the default container selected in blender, maybe because it's age results in a widespread compatibility (for the codecs supported...). I recommend you to use matroska directly as output container if you want flac as audio codec!

Jonata Bolzan commented

2015-02-06 09:24:51 +01:00

So, how can we generate a "lossless" h264 output with flac audio codec inside a mkv? The only way to get the h264 codec with the "lossless" option is generating an AVI.

Joerg Mueller commented

2015-02-06 11:00:32 +01:00

You can check the lossless checkbox and then switch to matroska. Even though the checkbox disappears it is still set. If you want this user interface problem to be fixed, I'd recommend opening a separate bug/feature report for that!

Julian Eisel commented

2015-03-20 01:03:25 +01:00

Added subscriber: @JulianEisel

Julian Eisel commented

2015-03-20 01:03:25 +01:00

Has there been any progress on this? @neXyon, do you have it on track?

Joerg Mueller commented

2015-03-26 03:37:55 +01:00

Added subscriber: @ideasman42

Joerg Mueller commented

2015-03-26 03:37:55 +01:00

The user interface needs to be changed for this and as this affects the whole video encoding/exporting settings we might better ask the developer in charge for this area. Maybe @ideasman42 can help with a decision on what to do?

Campbell Barton commented

2015-03-26 09:29:28 +01:00

@neXyon, If AVI doesn't support flac - can't we just disable this combination? Its not only a UI issue. Python can setup these values too.

@neXyon, If AVI doesn't support flac - can't we just disable this combination? Its not _only_ a UI issue. Python can setup these values too.

Joerg Mueller commented

2015-04-21 16:12:14 +02:00

I've opened a separate report for the UI issue (#44468) regarding invalid format/codec combinations as this report is getting too big.

To enable the problem of @jonata to enable lossless H.264 output for MKV, I append the patch lossless_ui_patch.diff which @ideasman42 can review please before one of us commits it!

I've opened a separate report for the UI issue (#44468) regarding invalid format/codec combinations as this report is getting too big. To enable the problem of @jonata to enable lossless H.264 output for MKV, I append the patch [lossless_ui_patch.diff](https://archive.blender.org/developer/F165014/lossless_ui_patch.diff) which @ideasman42 can review please before one of us commits it!

Joel Xu commented

2015-07-30 10:50:43 +02:00

Added subscriber: @JoelXu

Joerg Mueller removed their assignment 2015-07-30 11:55:47 +02:00

Campbell Barton was assigned by Joerg Mueller

2015-07-30 11:55:47 +02:00

Campbell Barton commented

2015-09-09 17:16:26 +02:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2015-09-09 17:16:26 +02:00

Campbell Barton commented