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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 (...)

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

Sur d’autres sites (3887)

  • What containers support pcm_s16le audio for ffmpeg ?

    24 mars 2020, par ENunn

    I’m trying to get this file working in Vegas, it’s a 4:2:2 mov file that I rendered with avisynth+/ffmpeg. I don’t want the audio sounding like crap so my audio codec is set to pcm_s16le.

    I sometimes edit these in Vegas Pro, however I’m trying to import them and I’m having so many problems. MOV has a green video, AVI is datamoshed garbage, MKV you can’t even edit in Vegas Pro (even with the MKV reader enabled). I know a "fix" for the green video, and that’s converting to 4:2:0, but I cannot stand the trailing of reds when I do it directly in Avisynth or ffmpeg. I know my final output is going to be 4:2:0 regardless but rendering it in Vegas doesn’t have those trailing reds.

    What other containers support pcm_s16le ? I’m trying to convert to as many containers as I can in ffmpeg and dial down what works best for me.

  • h.265 encoding with ffmpeg, video not playing correctly

    11 mars 2020, par DanielRieken

    I got a h.264 video I would like to encode to h.265 using FFmpeg :

    ffmpeg.exe -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    The source h.264 video is a recording of a RTMP-stream. At some point the video stops moving for 3 seconds. This is because of connection-issues of the original RTMP-stream.
    Of course the resulting h.265 video also stops moving for 3 seconds at the same point. But other than the h.264 video, the picture of the h.265 video is not frozen for only 3 seconds, it is frozen until the end of the video.

    I am using VLCplayer 3.0.8 for playback and it shows the following messages for the h.265 video :

    avcodec: Using D3D11VA (NVIDIA GeForce GT 1030, vendor 10de(NVIDIA), device 1d01, revision a1) for hardware decoding
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: avcodec_send_packet critical error

    When I disable hardware acceleration in VLCplayer the playback of the h.265 video works fine.

    Next I encoded the h.264 to h.265 using HandBrake 1.3.0 and the resulting h.265 video also works fine in VLCplayer with hardware acceleration enabled.

    So my question is :
    Why is the playback of the h.264 and the h.265-handbrake-videos working fine in VLCplayer but not the h.265-ffmpeg video ?

    When I encode the h.264 to huffyuv and then to h.265 using FFmpeg, the resulting h.265-video also works fine :

    ffmpeg.exe -i h264source.mkv -vcodec huffyuv -an huffyuv.mkv
    
ffmpeg.exe -i huffyuv.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    I am using the windows build by Zeranoe, ffmpeg-4.2.2-win64-static.

    C:\ffmpeg>ffmpeg.exe -loglevel verbose -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv
    
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20200122
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --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-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  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
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
[h264 @ 000001e8dc09d6c0] Reinit context to 864x480, pix_fmt: yuv420p
    
Input #0, matroska,webm, from 'h264source.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    ENCODER         : Lavf58.29.100
    
  Duration: 00:01:55.67, start: 0.000000, bitrate: 958 kb/s
    
    Stream #0:0: Video: h264 (Constrained Baseline), 1 reference frame, yuv420p(progressive, left), 852x480 (864x480) [SAR 1:1 DAR 71:40], 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
    
    Metadata:
    
      ENCODER         : Lavc58.54.100 libx264
    
      DURATION        : 00:01:55.666000000
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
    
Press [q] to stop, [?] for help
    
[h264 @ 000001e8dc77b080] Reinit context to 864x480, pix_fmt: yuv420p
    
[graph 0 input from stream 0:0 @ 000001e8dd38ee40] w:852 h:480 pixfmt:yuv420p tb:1/1000 fr:30/1 sar:1/1 sws_param:flags=2
    
x265 [info]: HEVC encoder version 3.2�acc5d16999e2
    
x265 [info]: build info [Windows][GCC 9.2.1][64 bit] 8bit+10bit
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
x265 [info]: Main profile, Level-3 (Main tier)
    
x265 [info]: Thread pool created using 16 threads
    
x265 [info]: Slices                              : 1
    
x265 [info]: frame threads / pool features       : 4 / wpp(8 rows)
    
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
    
x265 [info]: Residual QT: max TU size, max depth : 32 / 3 inter / 3 intra
    
x265 [info]: ME / range / subpel / merge         : star / 57 / 4 / 4
    
x265 [info]: Keyframe min / max / scenecut / bias  : 25 / 250 / 40 / 5.00
    
x265 [info]: Lookahead / bframes / badapt        : 40 / 8 / 2
    
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 1
    
x265 [info]: References / ref-limit  cu / depth  : 5 / off / on
    
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
    
x265 [info]: Rate Control / qCompress            : CRF-24.0 / 0.60
    
x265 [info]: tools: rect amp limit-modes rd=6 psy-rd=2.00 rdoq=2 psy-rdoq=1.00
    
x265 [info]: tools: rskip limit-tu=4 signhide tmvp b-intra
    
x265 [info]: tools: strong-intra-smoothing deblock sao
    
Output #0, matroska, to 'h265output.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    encoder         : Lavf58.29.100
    
    Stream #0:0: Video: hevc (libx265), 1 reference frame, yuv420p(left), 852x480 [SAR 1:1 DAR 71:40], q=2-31, 30 fps, 1k tbn, 30 tbc (default)
    
    Metadata:
    
      DURATION        : 00:01:55.666000000
    
      encoder         : Lavc58.54.100 libx265
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
No more output streams to write to, finishing
    
frame= 3178 fps= 14 q=-0.0 Lsize=    5105kB time=00:01:55.56 bitrate= 361.9kbits/s speed=0.506x
    
video:5080kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.492293%
    
Input file #0 (h264source.mkv):
    
  Input stream #0:0 (video): 3178 packets read (13837009 bytes); 3178 frames decoded;
    
  Total: 3178 packets (13837009 bytes) demuxed
    
Output file #0 (h265output.mkv):
    
  Output stream #0:0 (video): 3178 frames encoded; 3178 packets muxed (5201780 bytes);
    
  Total: 3178 packets (5201780 bytes) muxed
    
[AVIOContext @ 000001e8dc77af40] Statistics: 8 seeks, 40 writeouts
    
x265 [info]: frame I:     13, Avg QP:18.10  kb/s: 6779.10
    
x265 [info]: frame P:   1754, Avg QP:22.52  kb/s: 619.00
    
x265 [info]: frame B:   1411, Avg QP:31.19  kb/s: 50.69
    
x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
    
x265 [info]: Weighted B-Frames: Y:0.0% UV:0.0%
    
x265 [info]: consecutive B-frames: 67.4% 8.3% 8.6% 10.9% 2.7% 2.0% 0.2% 0.0% 0.0%
    

    
encoded 3178 frames in 228.50s (13.91 fps), 391.87 kb/s, Avg QP:26.35
    
[AVIOContext @ 000001e8dc0936c0] Statistics: 13860805 bytes read, 0 seeks

    Any advices ?

  • h.265 encoding with ffmpeg, video not playing correctly

    5 mars 2020, par DanielRieken

    I got a h.264 video I would like to encode to h.265 using FFmpeg :

    ffmpeg.exe -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    The source h.264 video is a recording of a RTMP-stream. At some point the video stops moving for 3 seconds. This is because of connection-issues of the original RTMP-stream.
    Of course the resulting h.265 video also stops moving for 3 seconds at the same point. But other than the h.264 video, the picture of the h.265 video is not frozen for only 3 seconds, it is frozen until the end of the video.

    I am using VLCplayer 3.0.8 for playback and it shows the following messages for the h.265 video :

    avcodec: Using D3D11VA (NVIDIA GeForce GT 1030, vendor 10de(NVIDIA), device 1d01, revision a1) for hardware decoding
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: avcodec_send_packet critical error

    When I disable hardware acceleration in VLCplayer the playback of the h.265 video works fine.

    Next I encoded the h.264 to h.265 using HandBrake 1.3.0 and the resulting h.265 video also works fine in VLCplayer with hardware acceleration enabled.

    So my question is :
    Why is the playback of the h.264 and the h.265-handbrake-videos working fine in VLCplayer but not the h.265-ffmpeg video ?

    When I encode the h.264 to huffyuv and then to h.265 using FFmpeg, the resulting h.265-video also works fine :

    ffmpeg.exe -i h264source.mkv -vcodec huffyuv -an huffyuv.mkv
    
ffmpeg.exe -i huffyuv.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    I am using the windows build by Zeranoe, ffmpeg-4.2.2-win64-static.

    Any advices ?

    edit :

    C:\ffmpeg>ffmpeg.exe -loglevel verbose -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv
    
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20200122
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --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-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  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
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
[h264 @ 000001e8dc09d6c0] Reinit context to 864x480, pix_fmt: yuv420p
    
Input #0, matroska,webm, from 'h264source.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    ENCODER         : Lavf58.29.100
    
  Duration: 00:01:55.67, start: 0.000000, bitrate: 958 kb/s
    
    Stream #0:0: Video: h264 (Constrained Baseline), 1 reference frame, yuv420p(progressive, left), 852x480 (864x480) [SAR 1:1 DAR 71:40], 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
    
    Metadata:
    
      ENCODER         : Lavc58.54.100 libx264
    
      DURATION        : 00:01:55.666000000
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
    
Press [q] to stop, [?] for help
    
[h264 @ 000001e8dc77b080] Reinit context to 864x480, pix_fmt: yuv420p
    
[graph 0 input from stream 0:0 @ 000001e8dd38ee40] w:852 h:480 pixfmt:yuv420p tb:1/1000 fr:30/1 sar:1/1 sws_param:flags=2
    
x265 [info]: HEVC encoder version 3.2�acc5d16999e2
    
x265 [info]: build info [Windows][GCC 9.2.1][64 bit] 8bit+10bit
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
x265 [info]: Main profile, Level-3 (Main tier)
    
x265 [info]: Thread pool created using 16 threads
    
x265 [info]: Slices                              : 1
    
x265 [info]: frame threads / pool features       : 4 / wpp(8 rows)
    
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
    
x265 [info]: Residual QT: max TU size, max depth : 32 / 3 inter / 3 intra
    
x265 [info]: ME / range / subpel / merge         : star / 57 / 4 / 4
    
x265 [info]: Keyframe min / max / scenecut / bias  : 25 / 250 / 40 / 5.00
    
x265 [info]: Lookahead / bframes / badapt        : 40 / 8 / 2
    
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 1
    
x265 [info]: References / ref-limit  cu / depth  : 5 / off / on
    
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
    
x265 [info]: Rate Control / qCompress            : CRF-24.0 / 0.60
    
x265 [info]: tools: rect amp limit-modes rd=6 psy-rd=2.00 rdoq=2 psy-rdoq=1.00
    
x265 [info]: tools: rskip limit-tu=4 signhide tmvp b-intra
    
x265 [info]: tools: strong-intra-smoothing deblock sao
    
Output #0, matroska, to 'h265output.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    encoder         : Lavf58.29.100
    
    Stream #0:0: Video: hevc (libx265), 1 reference frame, yuv420p(left), 852x480 [SAR 1:1 DAR 71:40], q=2-31, 30 fps, 1k tbn, 30 tbc (default)
    
    Metadata:
    
      DURATION        : 00:01:55.666000000
    
      encoder         : Lavc58.54.100 libx265
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
No more output streams to write to, finishing
    
frame= 3178 fps= 14 q=-0.0 Lsize=    5105kB time=00:01:55.56 bitrate= 361.9kbits/s speed=0.506x
    
video:5080kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.492293%
    
Input file #0 (h264source.mkv):
    
  Input stream #0:0 (video): 3178 packets read (13837009 bytes); 3178 frames decoded;
    
  Total: 3178 packets (13837009 bytes) demuxed
    
Output file #0 (h265output.mkv):
    
  Output stream #0:0 (video): 3178 frames encoded; 3178 packets muxed (5201780 bytes);
    
  Total: 3178 packets (5201780 bytes) muxed
    
[AVIOContext @ 000001e8dc77af40] Statistics: 8 seeks, 40 writeouts
    
x265 [info]: frame I:     13, Avg QP:18.10  kb/s: 6779.10
    
x265 [info]: frame P:   1754, Avg QP:22.52  kb/s: 619.00
    
x265 [info]: frame B:   1411, Avg QP:31.19  kb/s: 50.69
    
x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
    
x265 [info]: Weighted B-Frames: Y:0.0% UV:0.0%
    
x265 [info]: consecutive B-frames: 67.4% 8.3% 8.6% 10.9% 2.7% 2.0% 0.2% 0.0% 0.0%
    

    
encoded 3178 frames in 228.50s (13.91 fps), 391.87 kb/s, Avg QP:26.35
    
[AVIOContext @ 000001e8dc0936c0] Statistics: 13860805 bytes read, 0 seeks

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