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  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (6438)

  • Trying to concatenate 11 seconds of black video onto the end of a 5 min video. Getting non-monotonous DTS in output stream error

    14 janvier 2020, par TidusWulf

    I have a video shot from my smartphone that is 3840x2160@57.74. Originally, it was exactly 5 minutes long. I replaced the audio with a music file that is 5 minutes and 11 seconds using ffmpeg -i video.mp4 -i audio.mp3 -c copy -map 0:v:0 -map 1:a:0 output.mp4 I expected 11 seconds of black at the end, but instead the video output freezes on the last frame for 11 seconds. There’s definitely something funky going on because when I try to upload to youtube, it only sees the first 5 minutes. The last 10 seconds of audio get dropped.

    I tried making a second black clip with ffmpeg -f lavfi -i color=c=black:s=uhd2160:r=57.74 -t 11 -pix_fmt yuv420p blk2.mp4. When I try to concat the two files with ffmpeg -f concat -safe 0 -i list.txt -c copy teacup6.mp4 I get a huge list of errors such as [mp4 @ 00000166fda994c0] Non-monotonous DTS in output stream 0:0; previous: 27002920, current: 3728954; changing to 27002921. This may result in incorrect timestamps in the output file. for what appears to be about 11 seconds worth of frames, so basically the entire 11 second black clip. When I play it in VLC it goes black, but I suspect it’s not actually processing/playing 11 seconds of good black video because if I click along the track timeline, visual glitches start happening in the canvas.

    Here is what ffmpeg tells me about my inputs and outputs as far as framerate, pixel format, etc.

    [mov,mp4,m4a,3gp,3g2,mj2 @ 00000239e6cb2880] Auto-inserting h264_mp4toannexb bitstream filter
    Input #0, concat, from 'list.txt':
     Duration: N/A, start: -0.023021, bitrate: 72244 kb/s
       Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 3840x2160, 71994 kb/s, SAR 1:1 DAR 16:9, 57.74 fps, 59 tbr, 90k tbn, 180k tbc
       Metadata:
         handler_name    : VideoHandle
       Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 250 kb/s
       Metadata:
         handler_name    : SoundHandler
    Output #0, mp4, to 'teacup5.mp4':
     Metadata:
       encoder         : Lavf58.35.102
       Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 71994 kb/s, 57.74 fps, 59 tbr, 90k tbn, 90k tbc
       Metadata:
         handler_name    : VideoHandle
       Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 250 kb/s
       Metadata:
         handler_name    : SoundHandler
    Stream mapping:
     Stream #0:0 -> #0:0 (copy)
     Stream #0:1 -> #0:1 (copy)
    Press [q] to stop, [?] for help

    alternatively, I tried to make a black 3840x2160 png file and create an 11 second slideshow. It didn’t turn out any better. I tried a single image for 11 seconds @ 57.74fps, I also tried a looping slideshow of that one image, looping on every single frame, at 57.74 fps. I should note that wether a slideshow or a color generator, the filesize for the 11 seconds of black comes out to about 160KB. Strangely small in my opinion, but I was chalking it up to a good compression algorithm.

    I tried to do this in Da Vinci Resolve 16.1 instead and the video wouldn’t play. I also couldn’t find a way to maintain the same unusual 57.74 framerate with the free version, so it was undesirable anyway. I tried to re-process using Handbrake, but it threw an error. The output of the Handbrake processed video file also gets stuck on the last frame of the video, instead of going to black.

  • Remove black frames and sync audio with ffmpeg

    24 janvier 2020, par rahim123

    I’m trying to figure out a way to automatically process .mp4 or .mkv videos that have been manually edited to remove a bunch of segments, leaving many blank spaces (black frames with no audio). I want to remove all but one black frame (although I would settle for removing all of them if it’s much simpler) and then also sync the audio after the video timings change.

    I found this question and tried the three main suggestions :

    1. ffmpeg -i in.mkv -vf mpdecimate,setpts=N/FRAME_RATE/TB out.mkv
    2. ffmpeg -i in.mkv -vf [mpdecimate][] out.mkv
    3. ffmpeg -i in.mkv -vf [decimate][]=cycle=6,[setpts][]=N/25/TB out.mkv

    The first one does eliminate the black segments, but it doesn’t sync the audio. The other two commands don’t work :

    > ffmpeg -i in.mp4 -vf [decimate][]=cycle=6,[setpts][]=N/25/TB out.mp4
    
ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9 (SUSE Linux)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include/ffmpeg --extra-cflags='-O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -g' --optflags='-O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -g' --disable-htmlpages --enable-pic --disable-stripping --enable-shared --disable-static --enable-gpl --disable-openssl --enable-avresample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcelt --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libdc1394 --enable-libdrm --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libssh --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lto --enable-lv2 --enable-libmfx --enable-vaapi --enable-vdpau --enable-libfdk-aac-dlopen --enable-nonfree --enable-libvo-amrwbenc --enable-version3 --enable-libx264 --enable-libx265 --enable-librtmp --enable-libxvid
    
  libavutil      56. 31.100 / 56. 31.100
    
  libavcodec     58. 54.100 / 58. 54.100
    
  libavformat    58. 29.100 / 58. 29.100
    
  libavdevice    58.  8.100 / 58.  8.100
    
  libavfilter     7. 57.100 /  7. 57.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.20.100
    
  Duration: 00:34:23.62, start: 0.000000, bitrate: 506 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/unknown/smpte170m), 640x480 [SAR 1:1 DAR 4:3], 412 kb/s, 29.97 fps, 29.97 tbr, 1867500000.00 tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 86 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[AVFilterGraph @ 0x55ece8def080] Bad (empty?) label found in the following: "[]=cycle=6,[setpts][]=N/25/TB".
    
Error reinitializing filters!
    
Failed to inject frame into filter network: Invalid argument
    
Error while processing the decoded data for stream #0:0
    
[aac @ 0x55ece8c5be80] Qavg: 222.643
    
[aac @ 0x55ece8c5be80] 2 frames left in the queue on closing
    
Conversion failed!
    > ffmpeg -i in.mp4 -vf [decimate][]=cycle=6,[setpts][]=N/25/TB out.mp4
    
ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9 (SUSE Linux)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include/ffmpeg --extra-cflags='-O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -g' --optflags='-O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto -g' --disable-htmlpages --enable-pic --disable-stripping --enable-shared --disable-static --enable-gpl --disable-openssl --enable-avresample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcelt --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libdc1394 --enable-libdrm --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libssh --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lto --enable-lv2 --enable-libmfx --enable-vaapi --enable-vdpau --enable-libfdk-aac-dlopen --enable-nonfree --enable-libvo-amrwbenc --enable-version3 --enable-libx264 --enable-libx265 --enable-librtmp --enable-libxvid
    
  libavutil      56. 31.100 / 56. 31.100
    
  libavcodec     58. 54.100 / 58. 54.100
    
  libavformat    58. 29.100 / 58. 29.100
    
  libavdevice    58.  8.100 / 58.  8.100
    
  libavfilter     7. 57.100 /  7. 57.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.20.100
    
  Duration: 00:34:23.62, start: 0.000000, bitrate: 506 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/unknown/smpte170m), 640x480 [SAR 1:1 DAR 4:3], 412 kb/s, 29.97 fps, 29.97 tbr, 1867500000.00 tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 86 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[AVFilterGraph @ 0x558b0d48af80] Bad (empty?) label found in the following: "[]=cycle=6,[setpts][]=N/25/TB".
    
Error reinitializing filters!
    
Failed to inject frame into filter network: Invalid argument
    
Error while processing the decoded data for stream #0:0
    
[aac @ 0x558b0d2f7e80] Qavg: 222.643
    
[aac @ 0x558b0d2f7e80] 2 frames left in the queue on closing
    
Conversion failed!

    I also tried this script, but it also fails to sync the audio. I tried with both .mp4 and .mkv source files. Thanks for the help.

  • FFPLAY produces black video output [closed]

    28 janvier 2020, par RooterTooter

    I’m having an issue playing videos with ffplay on an embedded arm device (imx6). The OS is based on yocto sumo and uses the meta-freescale layers for imx6.

    I have a number of test videos in different formats that I am sure are formatted correctly (They play fine on my laptop with ffplay). FFMPEG has all the necessary codecs, detects my streams, it plays audio without an issue, but the video is just black.

    It’s worth nothing that I’m running X11 and have xterm running, and when ffplay is trying to play, a black box will pop up on the screen in the correct dimensions like it thinks it’s decoding video, but it’s always blank.

    $DISPLAY=:0 ffplay test.mp4
    
ffplay version 3.3.3 Copyright (c) 2003-2017 the FFmpeg developers
    
  built with gcc 7.3.0 (GCC)
    
  configuration: --disable-stripping --enable-pic --enable-shared --enable-pthreads --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --disable-libxcb-shape --enable-nonfree --cross-prefix=arm-poky-linux-gnueabi- --ld='arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --cc='arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --cxx='arm-poky-linux-gnueabi-g++ -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --arch=arm --target-os=linux --enable-cross-compile --extra-cflags=' -O2 -pipe -g -feliminate-unused-debug-types -fdebug-prefix-map=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0=/usr/src/debug/ffmpeg/3.3.3-r0 -fdebug-prefix-map=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot-native= -fdebug-prefix-map=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot= -march=armv7-a -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a9 --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot' --extra-ldflags='-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed' --sysroot=/home/builder/imx-yocto-bsp/machine/tmp/work/cortexa9hf-neon-poky-linux-gnueabi/ffmpeg/3.3.3-r0/recipe-sysroot --enable-hardcoded-tables --libdir=/usr/lib --shlibdir=/usr/lib --datadir=/usr/share/ffmpeg --disable-mipsdsp --disable-mipsdspr2 --cpu=cortex-a9 --pkg-config=pkg-config --enable-avcodec --enable-avdevice --enable-avfilter --enable-avformat --enable-avresample --enable-bzlib --enable-gpl --disable-libgsm --disable-indev=jack --disable-libvorbis --enable-lzma --disable-libmp3lame --enable-openssl --enable-postproc --disable-libschroedinger --enable-sdl2 --disable-libspeex --enable-swresample --enable-swscale --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvpx --enable-libx264 --enable-outdev=xv
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':q=    0B f=0/0   
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf58.20.100
    
  Duration: 00:00:30.88, start: 0.000000, bitrate: 143 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x180, 67 kb/s, 21.08 fps, 21.08 tbr, 16192 tbn, 42.17 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 66 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    I’ve tried h264 and mp2 video with the same results. Has anyone seen this before

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