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I am running an up-to-date Mageia 7 system, and I cannot get kdenlive to create mpeg4 files. Kdenlive reports that the CODEC H.264 is not available.



The CODEC is, in fact installed as shown by rpm

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$ rpm -qa | grep x264
lib64x264-devel-0.155-0.20181228.stable.1.mga7.tainted
libquicktime-x264-1.2.4-24.mga7.tainted
gstreamer1.0-x264-1.16.0-1.mga7.tainted
lib64x264_155-0.155-0.20181228.stable.1.mga7.tainted
x264-0.155-0.20181228.stable.1.mga7.tainted


To add to the confusion, ffmpeg is also incapable of creating mpeg4 files. I created a short test video and rendered it as Test.webm. Then I tried to convert it to mp4 using ffmpeg

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$ ffmpeg -i Test.webm Test.mp4
ffmpeg version 4.1.6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8.4.0 (Mageia 8.4.0-1.mga7)
  configuration: --prefix=/usr --enable-shared --enable-pic --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-runtime-cpudetect --enable-libaom --enable-libdc1394 --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libgsm --enable-libcelt --enable-libopus --enable-libopencv --enable-libopenjpeg --enable-libtwolame --enable-libxavs --enable-frei0r --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-avresample --enable-opencl --enable-libmp3lame --enable-sndio --enable-libdav1d --disable-decoder=aac --disable-encoder=aac
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Input #0, matroska,webm, from 'Test.webm':
  Metadata:
    ENCODER         : Lavf58.20.100
  Duration: 00:00:17.55, start: 0.000000, bitrate: 42 kb/s
    Stream #0:0: Video: vp8, yuv420p(smpte170m/unknown/smpte170m, progressive), 640x480, SAR 1:1 DAR 4:3, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      DURATION        : 00:00:17.554000000
    Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:00:17.508000000
Automatic encoder selection failed for output stream #0:1. Default encoder for format mp4 (codec aac) is probably disabled. Please choose an encoder manually.
Error selecting an encoder for stream 0:1


It indicates that the encoder is disabled, which you can see in the output above, "--disable-decoder=aac" seems like an accurate assessment.

So I looked for an encoder in ffmpeg that I might be able to use.

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$ ffmpeg -encoders | grep 264
ffmpeg version 4.1.6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8.4.0 (Mageia 8.4.0-1.mga7)
  configuration: --prefix=/usr --enable-shared --enable-pic --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-runtime-cpudetect --enable-libaom --enable-libdc1394 --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libgsm --enable-libcelt --enable-libopus --enable-libopencv --enable-libopenjpeg --enable-libtwolame --enable-libxavs --enable-frei0r --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-avresample --enable-opencl --enable-libmp3lame --enable-sndio --enable-libdav1d --disable-decoder=aac --disable-encoder=aac
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
 V..... h264_v4l2m2m         V4L2 mem2mem H.264 encoder wrapper (codec h264)
 V..... h264_vaapi           H.264/AVC (VAAPI) (codec h264)


Ffmpeg tells me that it is aware of the codec h264 with two encoders. They both give me the same error, for example:

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$ ffmpeg -i Test.webm -c:v h264_v4l2m2m Test.mp4
ffmpeg version 4.1.6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8.4.0 (Mageia 8.4.0-1.mga7)
  configuration: --prefix=/usr --enable-shared --enable-pic --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-runtime-cpudetect --enable-libaom --enable-libdc1394 --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libgsm --enable-libcelt --enable-libopus --enable-libopencv --enable-libopenjpeg --enable-libtwolame --enable-libxavs --enable-frei0r --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-avresample --enable-opencl --enable-libmp3lame --enable-sndio --enable-libdav1d --disable-decoder=aac --disable-encoder=aac
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Input #0, matroska,webm, from 'Test.webm':
  Metadata:
    ENCODER         : Lavf58.20.100
  Duration: 00:00:17.55, start: 0.000000, bitrate: 42 kb/s
    Stream #0:0: Video: vp8, yuv420p(smpte170m/unknown/smpte170m, progressive), 640x480, SAR 1:1 DAR 4:3, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      DURATION        : 00:00:17.554000000
    Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:00:17.508000000
Automatic encoder selection failed for output stream #0:1. Default encoder for format mp4 (codec aac) is probably disabled. Please choose an encoder manually.
Error selecting an encoder for stream 0:1


To create even more confusion, blender is able to create mp4 files with no problem, apparently using the same H.264 codec.



I don't understand how the CODECs hang together in the system.

Any help on resolving this issue would be appreciated.


Here is my system inxi info

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$ inxi -b
System:    Host: linuxmain Kernel: 5.6.14-desktop-2.mga7 x86_64 bits: 64 Desktop: KDE Plasma 5.15.4
           Distro: Mageia 7 mga7
Machine:   Type: Desktop System: ASUS product: All Series v: N/A serial: <root required>
           Mobo: ASUSTeK model: Z97-A-USB31 v: Rev 1.xx serial: <root required>
           UEFI [Legacy]: American Megatrends v: 2501 date: 06/24/2015
CPU:       Quad Core: Intel Core i5-4590 type: MCP speed: 1027 MHz min/max: 800/3700 MHz
Graphics:  Device-1: NVIDIA GM107 [GeForce GTX 750 Ti] driver: nvidia v: 430.64
           Display: x11 server: Mageia X.org 1.20.8 driver: nvidia,v4l resolution: 1920x1080~60Hz, 1920x1080~60Hz
           OpenGL: renderer: GeForce GTX 750 Ti/PCIe/SSE2 v: 4.6.0 NVIDIA 430.64
Network:   Device-1: Intel Ethernet I218-V driver: e1000e
Drives:    Local Storage: total: 1.36 TiB used: 202.29 GiB (14.5%)
Info:      Processes: 230 Uptime: 18m Memory: 7.72 GiB used: 2.52 GiB (32.7%) Shell: bash inxi: 3.0.33 



Thanks,
Banjo
(_)=='=~

You seem to be mixing up things. H264 is video compression, AAC is audio compression. ffmpeg is clearly telling you that AAC is disabled.

Please show the output of

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rpm -qa|grep -iE "ffmpeg|avcodec|avformat|aac"|sort
urpmq --list-media active --list-url

OK. I was not aware of that. Thanks for the info.

Here are the outputs from the commands.

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$ rpm -qa|grep -iE "ffmpeg|avcodec|avformat|aac"|sort
ffmpeg2theora-0.30-6.mga7
ffmpeg-4.1.6-1.mga7
ffmpegthumbs-19.04.0-1.mga7
lib64avcodec58-4.1.6-1.mga7
lib64avformat58-4.1.6-1.mga7

Code: Select all

$ urpmq --list-media active --list-url
Core Release http://mirror.math.princeton.edu/pub/mageia/distrib/7/x86_64/media/core/release
Core Updates http://mirror.math.princeton.edu/pub/mageia/distrib/7/x86_64/media/core/updates
Nonfree Release http://mirror.math.princeton.edu/pub/mageia/distrib/7/x86_64/media/nonfree/release
Nonfree Updates http://mirror.math.princeton.edu/pub/mageia/distrib/7/x86_64/media/nonfree/updates
Tainted Release http://mirror.math.princeton.edu/pub/mageia/distrib/7/x86_64/media/tainted/release
Tainted Updates http://mirror.math.princeton.edu/pub/mageia/distrib/7/x86_64/media/tainted/updates
google-chrome http://dl.google.com/linux/chrome/rpm/stable/x86_64

AFAICT you have neither the tainted version for ffmpeg and its dependencies installed, and you're also missing the actual AAC encoder, which is lib64vo-aacenc0

Try the following as root:

Code: Select all

urpmi lib64vo-aacenc0
urpmi --auto-update

The latter should update all installed packages to their tainted versions.

OK. Did that.

Code: Select all

# urpmi lib64vo-aacenc0


    $MIRRORLIST: media/tainted/release/lib64vo-aacenc0-0.1.3-8.mga7.tainted.x86_64.rpm
installing lib64vo-aacenc0-0.1.3-8.mga7.tainted.x86_64.rpm from /var/cache/urpmi/rpms                                                           
Preparing...                     ##############################################################################################################
      1/1: lib64vo-aacenc0       ##############################################################################################################
# urpmi --auto-update
medium "Core Release" is up-to-date
medium "Core Updates" is up-to-date
medium "Nonfree Release" is up-to-date
medium "Nonfree Updates" is up-to-date
medium "Tainted Release" is up-to-date
medium "Tainted Updates" is up-to-date
medium "google-chrome" is up-to-date
Packages are up to date


That did not fix the issues. Kdenlive still reports that MP4 is missing libx264. Ffmpeg errs out in the same way.

Code: Select all

$ ffmpeg -i Test.webm Test.mp4
ffmpeg version 4.1.6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8.4.0 (Mageia 8.4.0-1.mga7)
  configuration: --prefix=/usr --enable-shared --enable-pic --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-runtime-cpudetect --enable-libaom --enable-libdc1394 --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libgsm --enable-libcelt --enable-libopus --enable-libopencv --enable-libopenjpeg --enable-libtwolame --enable-libxavs --enable-frei0r --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-avresample --enable-opencl --enable-libmp3lame --enable-sndio --enable-libdav1d --disable-decoder=aac --disable-encoder=aac
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Input #0, matroska,webm, from 'Test.webm':
  Metadata:
    ENCODER         : Lavf58.20.100
  Duration: 00:00:17.55, start: 0.000000, bitrate: 42 kb/s
    Stream #0:0: Video: vp8, yuv420p(smpte170m/unknown/smpte170m, progressive), 640x480, SAR 1:1 DAR 4:3, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      DURATION        : 00:00:17.554000000
    Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp (default)
    Metadata:
      DURATION        : 00:00:17.508000000
Automatic encoder selection failed for output stream #0:1. Default encoder for format mp4 (codec aac) is probably disabled. Please choose an encoder manually.
Error selecting an encoder for stream 0:1



It looks like from the ffmpeg configuration comment that the aac encoder was disabled in the build. Is there a different version in the tainted repos?

banjo wrote:Is there a different version in the tainted repos?

Yes.

edit: but it's a different issue, see the recent bugreport https://bugs.mageia.org/show_bug.cgi?id=26941

The bug report describes what I am seeing with kdenlive. It appears that the tainted version of ffmpeg fixed the issue for them.

I opened the MCC and saw only one ffmpeg, which is installed. I do have the tainted repos enabled. How do I get access to the tainted version.. reference the full name of the package mentioned in the report, ffmpeg-4.1.6-1.mga7.tainted.x86_64?

Have a look here=> https://bugs.mageia.org/show_bug.cgi?id=26917

the advisory committed to svn for ffmpeg mistakenly excluded ffmpeg-4.1.6-1.mga7.tainted.
the packaging error has now been corrected.

Please wait a day or so for your locallest mirror to update, then you should be advised of an available update.

Thanks for the info. I will give it a few days, and if the updates fix the issue I will come back and mark the thread solved.

The updates for ffmpeg just showed up. I installed them. Everything works now.

Thanks for all the help.

Banjo
(_)=='=~