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Autres articles (3)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

Sur d’autres sites (1912)

  • Compiling ffmpeg for iOS and gas-preprocessor.pl

    16 mai 2017, par user500

    I want to compile ffmpeg for iOS. I did it a few times before. But now I’m on clean new Mavericks and on configure I’m always getting

    Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
    
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
    
GNU assembler not found, install gas-preprocessor
    

    
If you think configure made a mistake, make sure you are using the latest
    
version from Git.  If the latest version fails, report the problem to the
    
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
    
Include the log file "config.log" produced by configure as this will help
    
solving the problem.

    I have current Xcode installed. Also brews. And current gas-preprocessor.pl (https://github.com/yuvi/gas-preprocessor) in usr/bin and also in usr/local/bin.

    On perl /usr/bin/gas-preprocessor.pl gcc I’m getting Unrecognized input filetype at /usr/bin/gas-preprocessor.pl line 33.

    This config works :

    ./configure \
    
--extra-cflags='-arch arm64 -mios-version-min=7.0 -mthumb' \
    
--extra-ldflags='-arch arm64 -mios-version-min=7.0' \
    
--enable-cross-compile \
    
--arch=arm64 \
    
--target-os=darwin \
    
--cc=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang \
    
--sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk \
    
--prefix=arm64 \
    
--disable-doc \
    
--disable-shared \
    
--disable-everything \
    
--enable-static \
    
--enable-pic \
    
--disable-muxers \
    
--enable-muxer=flv \
    
--disable-demuxers \
    
--enable-demuxer=h264 \
    
--enable-demuxer=pcm_s16le \
    
--disable-devices \
    
--disable-parsers \
    
--enable-parser=h264 \
    
--disable-encoders \
    
--enable-encoder=aac \
    
--disable-decoders \
    
--enable-decoder=h264 \
    
--enable-decoder=pcm_s16le \
    
--disable-protocols \
    
--enable-protocol=rtmp \
    
--disable-filters \
    
--disable-bsfs

    This config throws error above (GNU assembler not found, install gas-preprocessor) :

    ./configure \
    
--cpu=cortex-a8 \
    
--extra-cflags='-arch armv7 -mios-version-min=7.0 -mthumb' \
    
--extra-ldflags='-arch armv7 -mios-version-min=7.0' \
    
--enable-cross-compile \
    
--arch=armv7 \
    
--target-os=darwin \
    
--cc=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang \
    
--sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk \
    
--prefix=armv7 \
    
--disable-doc \
    
--disable-shared \
    
--disable-everything \
    
--enable-static \
    
--enable-pic \
    
--disable-muxers \
    
--enable-muxer=flv \
    
--disable-demuxers \
    
--enable-demuxer=h264 \
    
--enable-demuxer=pcm_s16le \
    
--disable-devices \
    
--disable-parsers \
    
--enable-parser=h264 \
    
--disable-encoders \
    
--enable-encoder=aac \
    
--disable-decoders \
    
--enable-decoder=h264 \
    
--enable-decoder=pcm_s16le \
    
--disable-protocols \
    
--enable-protocol=rtmp \
    
--disable-filters \
    
--disable-bsfs

  • Re-encode and stream UDP TV Channels

    12 décembre 2018, par Tomy137

    I used from long time mumudvb and one dvb-t pci card to stream TV channels on my network. This is working fine but I’ve recently add another player that is less powerfull than others so I want to re-encode the video stream.

    This is my input stream video :

    Input #0, mpegts, from 'udp://@239.1.4.1:8200':
    
  Duration: N/A, start: 53843.533922, bitrate: N/A
    
  Program 1025 
    
    Metadata:
    
      service_name    : M6
    
      service_provider: Multi4
    
    Stream #0:0[0x78]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1920x1080 [   SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x82](fra): Audio: eac3 ([6][0][0][0] / 0x0006), 48000 Hz, 5.1(side), fltp, 192 kb/s
    
    Stream #0:2[0x83](qad): Audio: eac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 96 kb/s
    
    Stream #0:3[0x84](qaa): Audio: eac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 128 kb/s
    
    Stream #0:4[0x8c](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired)
    
    Stream #0:5[0x8d](fra): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)
    
    Stream #0:6[0xaa]: Unknown: none ([5][0][0][0] / 0x0005)
    
    Stream #0:7[0xab]: Unknown: none ([11][0][0][0] / 0x000B)

    ffmpeg version 3.0.1
    Running on Ubuntu 12.04.5 LTS

    And this is my command line to run ffmpeg :

    ffmpeg -i udp://@239.1.4.1:8200 -qscale:v:0 7 -c:v:0 mpeg4 -b:v:0 4000k -minrate:v 0 -maxrate:v 4000k -bufsize:v 5000k -s hd720 -c:a copy -f mpegts udp://239.1.24.1:8200?pkt_size=1316

    But when I do this, I’ve got errors like this on my VLC player :

    [00007f2ff3ad64c0] main audio output debug: inserting 35549 zeroes
    
[00007f2ff3ad64c0] main audio output warning: playback too early (-55552): down-sampling
    
[00007f2ff3adc4c0] xcb vout display debug: display is visible
    
[00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: -13228 us)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 33 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 2 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 4 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 0 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 22 ms)
    
[00007f2ff3ad64c0] main audio output warning: playback too early (-40559): down-sampling
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 8 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 13 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 3 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 3 ms)
    
[00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: 1666 us)
    
[00007f2ff3ad64c0] main audio output warning: playback way too early (-130510): playing silence
    
[00007f2ff3ad64c0] main audio output debug: inserting 6264 zeroes
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 13 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 15 ms)
    
[00007f2ff3ad64c0] main audio output warning: playback too early (-41304): down-sampling
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 10 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 54 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 15 ms)
    
[00007f2ff3ad64c0] main audio output warning: timing screwed (drift: -105734 us): stopping resampling
    
[00007f2ff3ad64c0] main audio output warning: playback too early (-105702): down-sampling
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 10 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 10 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 60 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 20 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 14 ms)
    
[00007f300dd870c0] main video output debug: picture might be displayed late (missing 13 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 61 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 25 ms)
    
[00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: -40141 us)
    
[00007f2ff3ad64c0] main audio output warning: playback too early (-40140): down-sampling
    
[00007f2ff3ad64c0] main audio output warning: playback too late (91622): up-sampling
    
[00007f2ff3ad64c0] main audio output debug: resampling stopped (drift: 120767 us)
    
[00007f2ff3ad64c0] main audio output warning: playback too late (120781): up-sampling
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 64 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 25 ms)
    
[00007f300dd870c0] main video output warning: picture is too late to be displayed (missing 31 ms)

    On web-plugin VLC media player - 3.0.3 Vetinari running on Ubuntu 16.04.3 LTS

    This is resulting on many glitch on VLC video and after some times audio and video become de-synchronised.

    For some reasons, I can’t update VLC / FFMPEG / Ubuntu

    Can you help me with that ?

    Thanks in advance for your time !

  • Live stream failed on Youtube

    20 septembre 2023, par kuldeep chopra

    We are currently running an AWS container that utilizes FFmpeg for live streaming while concurrently saving the stream as an MP4 file. However, we encountered an issue during a recent live stream session that was functioning correctly until approximately 13 minutes in, at which point FFmpeg reported the following error logs :

    


    ffmpeg [flv @ 0x555c4bdfe680] Failed to update header with correct duration.
2023-09-07T23:06:38.490+05:30 [flv @ 0x555c4bdfe680] Failed to update header with correct filesize.
2023-09-07T23:06:38.491+05:30 failed => rtmp://a.rtmp.youtube.com/live2/key......
2023-09-07T23:06:38.491+05:30 ffmpeg [tee @ 0x555c48843700] Slave muxer #1 failed: Broken pipe, continuing with 1/2 slaves.


    


    It's worth noting that we have conducted hundreds of live streams on YouTube without encountering this error before ; this is the first occurrence of such an issue.

    


    We would greatly appreciate it if you could investigate and provide insights into the underlying problem causing these error messages.

    


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