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Autres articles (104)

  • 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.

  • 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.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • MediaSPIP Player : problèmes potentiels

    22 février 2011, par

    Le lecteur ne fonctionne pas sur Internet Explorer
    Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
    Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...)

Sur d’autres sites (12085)

  • What difference does it make which version of Mozilla, MacOS and Safari we specify for using ffmpeg ?

    3 mars 2020, par Kaizer Sozay

    I came across this snippet of code for downloading m3u8 playlists and concatenating them into an mkv file :

    $ ffmpeg -user_agent "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/601.7.8 (KHTML, like Gecko) Version/9.1.3 Safari/537.86.7" -i https://devstreaming-cdn.apple.com/videos/wwdc/2019/901myoscpux9y7nry55/901/hls_vod_mvp.m3u8 -c copy pd.mkv

    My question is about the section of the script :

    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/601.7.8 (KHTML, like Gecko) Version/9.1.3 Safari/537.86.7"

    These seem like very old numbers. For example, Catalina is 10.15.3. No idea which is the latest Mozilla but Safari is now on 13.0.5

    Was just wondering if it makes any difference if the version is old, or if we should update to the code to specify newer versions of Mac OS, Mozilla, Webkit and Safari.

    Can someone explain the significance ?

  • Burn subtitles in a stop motion video, with hardware acceleration

    9 février 2020, par Belinde

    I’m trying to make a year long stop motion video with the images taken from a webcam. I’ve created a input.txt file with this format inside :

    ffconcat version 1.0
    

    
file 'amianthe201909031230.jpg'
    
duration 0.093034825870647
    

    
file 'amianthe201909031330.jpg'
    
duration 0.093034825870647

    The command I’ve crafted (mostly taken from the example in the official ffmpeg documentation) is :

    ffmpeg \
    
    -y \
    
    -hwaccel vaapi \
    
    -hwaccel_device /dev/dri/renderD128 \
    
    -hwaccel_output_format vaapi \
    
    -f concat \
    
    -i input.txt \
    
    -vf 'hwmap=mode=read+write+direct,format=nv12,ass=subtitles.ass,hwmap' \
    
    -c:v h264_vaapi \
    
    ~/amianthe.mp4

    But it badly fails with this output :

    ffmpeg version 4.1.4-1build2 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9 (Ubuntu 9.2.1-4ubuntu1)
    
  configuration: --prefix=/usr --extra-version=1build2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    
  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, concat, from 'input.txt':
    
  Duration: 00:00:18.70, start: 0.000000, bitrate: 5 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (h264_vaapi))
    
Press [q] to stop, [?] for help
    
[Parsed_ass_2 @ 0x5557f4ec4ac0] Shaper: FriBidi 0.19.7 (SIMPLE) HarfBuzz-ng 2.6.1 (COMPLEX)
    
[Parsed_ass_2 @ 0x5557f4ec4ac0] Using font provider fontconfig
    
[Parsed_ass_2 @ 0x5557f4ec4ac0] Added subtitle file: 'subtitles.ass' (4 styles, 2 events)
    
[Parsed_hwmap_3 @ 0x5557f5381ec0] Unsupported formats for hwmap: from nv12 (vaapi_vld) to vaapi_vld.
    
[Parsed_hwmap_3 @ 0x5557f5381ec0] Failed to configure output pad on Parsed_hwmap_3
    
Error reinitializing filters!
    
Failed to inject frame into filter network: Invalid argument
    
Error while processing the decoded data for stream #0:0
    
Conversion failed!

    I’m honestly lost : from my understanding, all the elaboration should be done directly in the video card memory, so I don’t understand why it’s converting the surface format. Is there some other parameter I must put in format ? What am I missing ?

  • ffmpeg to Youtube Live stops working. ffmpeg continues to run

    10 février 2020, par Robert Pringle

    I’m streaming a mobotix camera to Youtube Live.

    This works correctly for a period of time. Youtube then reports the stream as "noData".
    ffmpeg continues to run, but no video is being received by Youtube.

    The problem is intermittant.

    Restarting the ffmpeg process makes Youtube start receiving the stream again.

    ffmpeg is being run as a systemd service.

    ffmpeg is run with the following command :

    ffmpeg -nostdin  -f lavfi  -i anullsrc  -rtsp_transport tcp -thread_queue_size 512 -i "rtsp://@192.168.1.1:554/mobotix.h264"   -tune zerolatency  -vcodec libx264  -pix_fmt + -c:v copy  -c:a aac  -strict experimental  -f flv rtmp://a.rtmp.youtube.com/live2/

    Logs only show : ffmpeg[47357]: [48.0K blob data]

    Any ideas on how to solve this ? Or improve the logging.

    Edit :
    Logs from starting ffmpeg :

        Feb 07 17:57:00 localhost.localdomain ffmpeg[49525]: [48.0K blob data]
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:       encoder         : Lavc58.54.100 aac
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     Metadata:
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     Stream #0:0: Video: h264 (Constrained Baseline) ([7][0][0][0] / 0x0007), yuv420p(progressive), 1024x768, q=2-31, 12.50 tbr, 1k tbn, 90k tbc
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:     encoder         : Lavf58.29.100
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:   Metadata:
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]: Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/':
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:   Stream #0:0 -> #0:1 (pcm_u8 (native) -> aac (native))
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]:   Stream #1:0 -> #0:0 (copy)
    
    Feb 07 17:52:47 localhost.localdomain ffmpeg[49525]: Stream mapping:
    
    Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:     Stream #1:0: Video: h264 (Constrained Baseline), yuv420p(progressive), 1024x768, 12.50 tbr, 90k tbn, 180k tbc
    
    Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:   Duration: N/A, start: 136.139322, bitrate: N/A
    
    Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:     comment         : mobotix.h264
    
    Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:     title           : Mobotix IP-Camera (H.264, unicast)
    
    Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]:   Metadata:
    
    Feb 07 17:52:46 localhost.localdomain ffmpeg[49525]: Input #1, rtsp, from 'rtsp://@192.168.1.1:554/mobotix.h264':
    
    Feb 07 17:52:44 localhost.localdomain ffmpeg[49525]: [h264 @ 0x559ee7857940] concealing 2400 DC, 2400 AC, 2400 MV errors in P frame
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:     Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]: Input #0, lavfi, from 'anullsrc':
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libpostproc    55.  5.100 / 55.  5.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libswresample   3.  5.100 /  3.  5.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libswscale      5.  5.100 /  5.  5.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavresample   4.  0.  0 /  4.  0.  0
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavfilter     7. 57.100 /  7. 57.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavdevice    58.  8.100 / 58.  8.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavformat    58. 29.100 / 58. 29.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavcodec     58. 54.100 / 58. 54.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   libavutil      56. 31.100 / 56. 31.100
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 >
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]:   built with gcc 8 (GCC)
    
    Feb 07 17:52:43 localhost.localdomain ffmpeg[49525]: ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers

    Running the command manually gave me logs and exited, whereas the systemd service keeps running.

        [flv @ 0x560541a8b3c0] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
    
    av_interleaved_write_frame(): Broken pipekB time=03:35:18.84 bitrate=3131.8kbits/s speed=0.999x    
    
        Last message repeated 1 times
    
    [flv @ 0x560541a8b3c0] Failed to update header with correct duration.
    
    [flv @ 0x560541a8b3c0] Failed to update header with correct filesize.
    
    Error writing trailer of rtmp://a.rtmp.youtube.com/live2/: Broken pipe
    
    frame=134427 fps= 10 q=-1.0 Lsize= 4938869kB time=03:35:18.96 bitrate=3131.8kbits/s speed=0.997x    
    
    video:4923745kB audio:3296kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.240068%
    
    [aac @ 0x560541a6d680] Qavg: 65536.000
    
    Conversion failed!

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