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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
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    Actuellement MediaSPIP n’est disponible qu’en français et (...)

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    13 mars 2010, par

    Pour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
    Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)

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    10 avril 2011

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Sur d’autres sites (10241)

  • FFmpeg HLS input stream shows "Packet corrupt" and "timestamp discontinuity" errors when pushing to RTMP server [closed]

    22 mai, par Amul Bhatia

    I'm trying to restream an HLS URL (https://cache.fastcdn.com.my/edge/53-1.stream/index_0.m3u8?misc=87uq4HjbDEDE3TzIY95ja1ZMxA-Cm1PbOXAk16riVlU&uid=139322&ts=1747931206&e=43200&lat=1747931206&sil=5&sk=no&uip=MTEwLjIyNC4yNDIuOTg&head=aHR0cF94X2ZvcndhcmRlZF9mb3I&chid=53-1') into my RTMP server with FFmpeg. The command I use is :

    


    ffmpeg -i "https://cache.fastcdn.com.my/edge/53-1.stream/index_0.m3u8?misc=87uq4HjbDEDE3TzIY95ja1ZMxA-Cm1PbOXAk16riVlU&uid=139322&ts=1747931206&e=43200&lat=1747931206&sil=5&sk=no&uip=MTEwLjIyNC4yNDIuOTg&head=aHR0cF94X2ZvcndhcmRlZF9mb3I&chid=53-1" -c:v libx264 -preset veryfast -b:v 1000k -c:a aac -b:a 128k -f flv rtmp://69.62.85.241/live/streamkey


    


    getting error

    


    ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
  configuration: --prefix=/usr --extra-version=3ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
[hls @ 0x60992c0c8880] Skip ('#EXT-X-VERSION:3')
[hls @ 0x60992c0c8880] Skip ('#EXT-X-DISCONTINUITY')
    Last message repeated 9 times
[hls @ 0x60992c0c8880] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
    Last message repeated 1 times
Input #0, hls, from 'https://cache.fastcdn.com.my/edge/53-1.stream/index_0.m3u8?misc=87uq4HjbDEDE3TzIY95ja1ZMxA-Cm1PbOXAk16riVlU&uid=139322&ts=1747931206&e=43200&lat=1747931206&sil=5&sk=no&uip=MTEwLjIyNC4yNDIuOTg&head=aHR0cF94X2ZvcndhcmRlZF9mb3I&chid=53-1':
  Duration: 00:01:00.00, start: 1.466667, bitrate: 0 kb/s
  Program 0
    Metadata:
      variant_bitrate : 0
  Stream #0:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, unknown/bt709/iec61966-2-1), 854x480 [SAR 1:1 DAR 427:240], 30 fps, 30 tbr, 90k tbn
    Metadata:
      variant_bitrate : 0
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x60992cd68b00] using SAR=1/1
[libx264 @ 0x60992cd68b00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x60992cd68b00] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x60992cd68b00] 264 - core 164 r3108 31e19f9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, flv, to 'rtmp://69.62.85.241/live/streamkey':
  Metadata:
    encoder         : Lavf60.16.100
  Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv420p(tv, unknown/bt709/iec61966-2-1, progressive), 854x480 [SAR 1:1 DAR 427:240], q=2-31, 1000 kb/s, 30 fps, 1k tbn
    Metadata:
      variant_bitrate : 0
      encoder         : Lavc60.31.102 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/1000000 buffer size: 0 vbv_delay: N/A
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 6000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 12000000
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 18000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 24000000
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 30000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 36000000
[https @ 0x60992c48fc40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 42000000
[https @ 0x60992c4a9d40] Opening 'https://cache.fastcdn.com.my/error/chunks/407.ts' for reading
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 48000000
[mpegts @ 0x60992c161940] Packet corrupt (stream = 0, dts = 663000).
[hls @ 0x60992c0c8880] Packet corrupt (stream = 0, dts = 660000).
[in#0/hls @ 0x60992c0c8780] corrupt input packet in stream 0
[vist#0:0/h264 @ 0x60992c47ae80] timestamp discontinuity (stream id=0): -6000000, new offset= 54000000
[flv @ 0x60992c88a340] Failed to update header with correct duration.44.8kbits/s speed=22.6x
[flv @ 0x60992c88a340] Failed to update header with correct filesize.
[out#0/flv @ 0x60992cc36180] video:304kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 11.671993%
frame= 1800 fps=685 q=-1.0 Lsize=     339kB time=00:00:59.90 bitrate=  46.4kbits/s speed=22.8x
[libx264 @ 0x60992cd68b00] frame I:8     Avg QP: 2.07  size: 20330
[libx264 @ 0x60992cd68b00] frame P:454   Avg QP: 0.23  size:   218
[libx264 @ 0x60992cd68b00] frame B:1338  Avg QP: 0.21  size:    37
[libx264 @ 0x60992cd68b00] consecutive B-frames:  0.9%  0.0%  0.0% 99.1%
[libx264 @ 0x60992cd68b00] mb I  I16..4: 86.7%  0.3% 13.0%
[libx264 @ 0x60992cd68b00] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  1.4%  0.0%  0.0%  0.0%  0.0%    skip:98.6%
[libx264 @ 0x60992cd68b00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.1%  0.0%  0.0%  direct: 0.1%  skip:99.8%  L0:59.9% L1:40.1% BI: 0.0%
[libx264 @ 0x60992cd68b00] final ratefactor: -25.04
[libx264 @ 0x60992cd68b00] 8x8 transform intra:0.3% inter:1.8%
[libx264 @ 0x60992cd68b00] coded y,uvDC,uvAC intra: 13.5% 0.0% 0.0% inter: 0.2% 0.0% 0.0%
[libx264 @ 0x60992cd68b00] i16 v,h,dc,p: 90%  6%  4%  0%
[libx264 @ 0x60992cd68b00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 59% 12% 28%  0%  1%  1%  0%  0%  0%
[libx264 @ 0x60992cd68b00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 18% 19%  4%  4%  4%  3%  4%  3%
[libx264 @ 0x60992cd68b00] i8c dc,h,v,p: 100%  0%  0%  0%
[libx264 @ 0x60992cd68b00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x60992cd68b00] kb/s:41.38


    


    However, I get repeated errors like :

    


    Packet corrupt (stream = 0, dts = xxxx)

    


    timestamp discontinuity (stream id=0)

    


    corrupt input packet in stream 0

    


    The stream partially works but seems unstable. How can I fix this error ?

    


    my nginx.conf

    


    rtmp {
    server {
        listen 1935;
        chunk_size 4096;

        application live {
            live on;
            record off;

            hls on;
            hls_path /var/www/hls;
            hls_fragment 5;                  # each TS segment = 5s
            hls_playlist_length 120;         # keep last 2 minutes of stream
            hls_cleanup off;                 # do not delete old segments
        }
    }
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile on;
    keepalive_timeout 65;

    server {
        listen 81;

        location /hls {
            root /var/www;
            types {
                application/vnd.apple.mpegurl m3u8;
                video/mp2t ts;
            }

            add_header Cache-Control no-cache;
            add_header Access-Control-Allow-Origin *;
            add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
            add_header Access-Control-Allow-Headers 'Range';
            add_header Access-Control-Expose-Headers 'Content-Length, Content-Range';
        }
    }
}


    


    The same url is working fine when used in browser, but extracting the stream and putting it in RTMP server and accessing my RTMP server at rtmp ://69.62.85.241/live/streamkey not working

    


  • Sporadic "Error parsing Cues... Operation not permitted" errors when trying to generate a DASH manifest

    22 novembre 2023, par kshetline

    I have already-generated .webm audio and video files (1 audio, 3 video resolutions for each video I want to stream). The video has been generated not (directly) by ffmpeg, but HandbrakeCLI 1.7.0, with V9 encoding. The audio (which has never caused an error) is generated by ffmpeg using libvorbis.

    


    Most of the time ffmpeg (version 6.1) creates a manifest without any problem. Sporadically, however, "Error parsing Cues" comes up (frequently with the latest videos I've been trying to process) and I can't create a manifest. Since this is happening during an automated process to process many videos for streaming, the audio and video sources are being created exactly the same way whether ffmpeg succeeds or fails in generating a manifest, making this all the more confusing.

    


    The video files ffmpeg chokes on play perfectly well using VLC, and mediainfo doesn't show any problems with these files.

    


    Here's the way I've been (sometimes successfully, sometimes not) generating a manifest, with extra logging added :

    


    ffmpeg -v 9 -loglevel 99 \
  -f webm_dash_manifest -i '.\Sample Video.v480.webm' \
  -f webm_dash_manifest -i '.\Sample Video.v720.webm' \
  -f webm_dash_manifest -i '.\Sample Video.v1080.webm' \
  -f webm_dash_manifest -i '.\Sample Video.audio.webm' \
  -c copy -map 0 -map 1 -map 2 -map 3 \
  -f webm_dash_manifest -adaptation_sets "id=0,streams=0,1,2 id=1,streams=3" \
  '.\Sample Video.mpd'


    


    Here's the result when it fails :

    


    ffmpeg version 6.1-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with argument '9'.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'webm_dash_manifest'.
Reading option '-i' ... matched as output url with argument '.\Sample Video.v480.webm'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'webm_dash_manifest'.
Reading option '-i' ... matched as output url with argument '.\Sample Video.v720.webm'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'webm_dash_manifest'.
Reading option '-i' ... matched as output url with argument '.\Sample Video.v1080.webm'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'webm_dash_manifest'.
Reading option '-i' ... matched as output url with argument '.\Sample Video.audio.webm'.
Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '1'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '2'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '3'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'webm_dash_manifest'.
Reading option '-adaptation_sets' ... matched as AVOption 'adaptation_sets' with argument 'id=0,streams=0,1,2 id=1,streams=3'.
Reading option '.\Sample Video.mpd' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument 9.
Successfully parsed a group of options.
Parsing a group of options: input url .\Sample Video.v480.webm.
Applying option f (force format) with argument webm_dash_manifest.
Successfully parsed a group of options.
Opening an input file: .\Sample Video.v480.webm.
[webm_dash_manifest @ 000002bbcb41dc80] Opening '.\Sample Video.v480.webm' for reading
[file @ 000002bbcb41e300] Setting default whitelist 'file,crypto,data'
st:0 removing common factor 1000000 from timebase
[webm_dash_manifest @ 000002bbcb41dc80] Error parsing Cues
[AVIOContext @ 000002bbcb41e5c0] Statistics: 102283 bytes read, 4 seeks
[in#0 @ 000002bbcb41dac0] Error opening input: Operation not permitted
Error opening input file .\Sample Video.v480.webm.
Error opening input files: Operation not permitted


    


    This is mediainfo for the offending input file, Sample Video.v480.webm :

    


    General
Complete name                            : .\Sample Video.v480.webm
Format                                   : WebM
Format version                           : Version 2
File size                                : 628 MiB
Duration                                 : 1 h 34 min
Overall bit rate                         : 926 kb/s
Frame rate                               : 23.976 FPS
Encoded date                             : 2023-11-21 16:48:35 UTC
Writing application                      : HandBrake 1.7.0 2023111500
Writing library                          : Lavf60.16.100

Video
ID                                       : 1
Format                                   : VP9
Format profile                           : 0
Codec ID                                 : V_VP9
Duration                                 : 1 h 34 min
Bit rate                                 : 882 kb/s
Width                                    : 720 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Bits/(Pixel*Frame)                       : 0.106
Stream size                              : 598 MiB (95%)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709


    


    I don't know if I need different command line options, or whether this might be an ffmpeg or Handbrake bug. It has taken many, many hours to generate these video files (VP9 is painfully slow to encode), so I hate to do a lot of this over again, especially doing it again encoding the video with ffmpeg instead of Handbrake, as Handbrake is (oddly enough, considering it uses ffmpeg under the hood) noticeably faster.

    


    I have no idea what these "Cues" are that ffmpeg wants and can't parse, or how I would change them.

    


  • avformat/mov : add support for reading Content Light Level Box

    22 avril 2017, par James Almer
    avformat/mov : add support for reading Content Light Level Box

    As defined in "VP Codec ISO Media File Format Binding v1.0"
    
https://github.com/webmproject/vp9-dash/blob/master/VPCodecISOMediaFileFormatBinding.md
    

    Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
    
Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] libavformat/isom.h
    • [DH] libavformat/mov.c

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