Recherche avancée

Médias (1)

Mot : - Tags -/Rennes

Autres articles (111)

  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

  • Que fait exactement ce script ?

    18 janvier 2011, par

    Ce script est écrit en bash. Il est donc facilement utilisable sur n’importe quel serveur.
    Il n’est compatible qu’avec une liste de distributions précises (voir Liste des distributions compatibles).
    Installation de dépendances de MediaSPIP
    Son rôle principal est d’installer l’ensemble des dépendances logicielles nécessaires coté serveur à savoir :
    Les outils de base pour pouvoir installer le reste des dépendances Les outils de développements : build-essential (via APT depuis les dépôts officiels) ; (...)

Sur d’autres sites (8140)

  • avconv on debian jessie throws error when trying to convert raw video to mp4

    20 août 2017, par Vinay Divakar

    I am trying to convert a raw video captured using a Logitech USB Cam(YUYV) to mp4 using avconv. I have tried the below to do so :

    avconv -i out.raw -c copy output.mp4
    avconv -i out.raw -vcodec copy -acodec copy output.mp4

    but I get an error as shown below.

    root@beaglebone:~/BBB_CV/boneCV# avconv -i out.raw -c copy output.mp4
    avconv version 11.9-6:11.9-1~deb8u1, Copyright (c) 2000-2017 the Libav developersbuilt on Apr 23 2017 23:00:54 with gcc 4.9.2 (Debian 4.9.2-10)
    out.raw: Invalid data found when processing input

    I have checked here, but did not find any relevant examples for the above purpose.

    Edit : Added more details—

    I tried doing the below by adding the infile options as suggested :

    root@beaglebone:~/BBB_CV/boneCV# avconv -s 640x480 -framerate 30 -pix_fmt yuyv422 -f rawvideo -i out.raw -c copy output.mp4

    This got me rid of the previous error and some new ones popped up as shown below.

    root@beaglebone:~/BBB_CV/boneCV# avconv -s 640x480 -framerate 30 -pix_fmt yuyv422 -f rawvideo -i out.raw -c copy output.mp4
    avconv version 11.9-6:11.9-1~deb8u1, Copyright (c) 2000-2017 the Libav
    developers built on Apr 23 2017 23:00:54 with gcc 4.9.2 (Debian 4.9.2-10)
    [rawvideo @ 0x17e21c0] Estimating duration from bitrate, this may be inaccurate
    Input #0, rawvideo, from 'out.raw':
    Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0.0: Video: rawvideo, yuyv422, 640x480, 30 tbn
    [mp4 @ 0x17eb840] Codec for stream 0 does not use global headers but
    container format requires global headers
    [mp4 @ 0x17eb840] track 0: could not find tag, codec not currently
    supported in container
    Output #0, mp4, to 'output.mp4':
    Metadata:
    encoder         : Lavf56.1.0
    Stream #0.0: Video: rawvideo, yuyv422, 640x480, q=2-31, 30 tbn, 30 tbc
    Stream mapping:
    Stream #0:0 -> #0:0 (copy)
    Could not write header for output file #0 (incorrect codec parameters ?):
    Operation not permitted

    The output.mp4 is being generated but when tried to open it throws an error.

    Edit : I ran a "sudo apt-get install libav-tools" an then tried. This is what I got.

    root@beaglebone:~/BBB_CV/boneCV# avconv -s 640x480 -framerate 30 -pix_fmt
    yuyv422 -f rawvideo -i out.raw -c copy output.mp4
    ffmpeg version 2.6.9 Copyright (c) 2000-2016 the FFmpeg developers
    built with gcc 4.9.2 (Debian 4.9.2-10)
    configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-
    strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro'
      -cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-
       nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-
       libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-
       libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
       libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-
       libvpx --enable-libschroedinger --disable-encoder=libschroedinger --
       enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter -
       enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-
      libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/arm-linux-gnueabihf -
      -disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-
      frei0r --enable-openssl --enable-libass --enable-libopus --enable-
      fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --
      disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample
      --disable-htmlpages --disable-podpages --enable-libutvideo --enable-
      libfdk-aac --enable-libx265 --enable-libiec61883 --enable-libdc1394 --
      disable-altivec --shlibdir=/usr/lib/arm-linux-gnueabihf
      libavutil      54. 20.100 / 54. 20.100
      libavcodec     56. 26.100 / 56. 26.100
      libavformat    56. 25.101 / 56. 25.101
      libavdevice    56.  4.100 / 56.  4.100
      libavfilter     5. 11.102 /  5. 11.102
      libavresample   2.  1.  0 /  2.  1.  0
      libswscale      3.  1.101 /  3.  1.101
      libswresample   1.  1.100 /  1.  1.100
      libpostproc    53.  3.100 / 53.  3.100
     [rawvideo @ 0x18465e0] Estimating duration from bitrate, this may be
      inaccurate
      Input #0, rawvideo, from 'out.raw':
      Duration: 00:00:00.10, start: 0.000000, bitrate: 146626 kb/s
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456
      kb/s, 30 tbr, 30 tbn, 30 tbc
      [mp4 @ 0x184f790] Could not find tag for codec rawvideo in stream #0,
      codec not currently supported in container
      Output #0, mp4, to 'output.mp4':
      Metadata:
      encoder         : Lavf56.25.101
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, q=2-
      31, 147456 kb/s, 30 tbr, 30 tbn, 30 tbc
      Stream mapping:
      Stream #0:0 -> #0:0 (copy)
      Could not write header for output file #0 (incorrect codec parameters ?):
      Invalid argument

    I ran "ffmpeg -s 640x480 -framerate 30 -pix_fmt yuv420p -f rawvideo -i out.raw output.mp4" and below is what I got.

    root@beaglebone:~/BBB_CV/boneCV# ffmpeg -s 640x480 -framerate 30 -pix_fmt yuv420p -f rawvideo -i out.raw output.mp4
    ffmpeg version 2.6.9 Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 4.9.2 (Debian 4.9.2-10)
     configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/arm-linux-gnueabihf --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/arm-linux-gnueabihf
     libavutil      54. 20.100 / 54. 20.100
     libavcodec     56. 26.100 / 56. 26.100
     libavformat    56. 25.101 / 56. 25.101
     libavdevice    56.  4.100 / 56.  4.100
     libavfilter     5. 11.102 /  5. 11.102
     libavresample   2.  1.  0 /  2.  1.  0
     libswscale      3.  1.101 /  3.  1.101
     libswresample   1.  1.100 /  1.  1.100
     libpostproc    53.  3.100 / 53.  3.100
    [rawvideo @ 0x1d55e0] Estimating duration from bitrate, this may be inaccurate
    Input #0, rawvideo, from 'out.raw':
     Duration: 00:00:00.13, start: 0.000000, bitrate: 109969 kb/s
       Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, 110592 kb/s, 30 tbr, 30 tbn, 30 tbc
    [libx264 @ 0x1df6c0] using cpu capabilities: ARMv6 NEON
    [libx264 @ 0x1df6c0] profile High, level 3.0
    [libx264 @ 0x1df6c0] 264 - core 146 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 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=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    Output #0, mp4, to 'output.mp4':
     Metadata:
       encoder         : Lavf56.25.101
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480, q=-1--1, 30 fps, 15360 tbn, 30 tbc
       Metadata:
         encoder         : Lavc56.26.100 libx264
    Stream mapping:
     Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    [rawvideo @ 0x1de3a0] Invalid buffer size, packet size 450428 < expected frame_size 460800
    Error while decoding stream #0:0: Invalid argument
    frame=    3 fps=1.7 q=29.0 Lsize=     263kB time=00:00:00.03 bitrate=64692.6kbits/s    
    video:262kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.318205%
    [libx264 @ 0x1df6c0] frame I:1     Avg QP:33.09  size:100676
    [libx264 @ 0x1df6c0] frame P:2     Avg QP:32.99  size: 83672
    [libx264 @ 0x1df6c0] mb I  I16..4:  0.0% 95.4%  4.6%
    [libx264 @ 0x1df6c0] mb P  I16..4:  0.0% 45.7%  3.0%  P16..4: 35.9% 10.7%  4.8%  0.0%  0.0%    skip: 0.0%
    [libx264 @ 0x1df6c0] 8x8 transform intra:94.6% inter:86.1%
    [libx264 @ 0x1df6c0] coded y,uvDC,uvAC intra: 100.0% 100.0% 100.0% inter: 53.6% 100.0% 100.0%
    [libx264 @ 0x1df6c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 56% 12% 24%  2%  0%  1%  1%  2%  3%
    [libx264 @ 0x1df6c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 82% 11%  4%  0%  0%  0%  1%  0%  1%
    [libx264 @ 0x1df6c0] i8c dc,h,v,p: 48% 30% 14%  7%
    [libx264 @ 0x1df6c0] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 0x1df6c0] ref P L0: 83.5%  7.9%  8.6%
    [libx264 @ 0x1df6c0] kb/s:21441.60
  • installing x264 0.120 for redhat el7

    16 août 2017, par Mohammad Alkhaldi

    im trying to install x264 for redhat el7

    i cloned it from github then compiled it and installed

    this is the clone link :http://git.videolan.org/git/x264.git

    when i run x264 —version it gives me this output

    x264 0.148.x
    built on Aug 16 2017, gcc : 4.8.5 20150623 (Red Hat 4.8.5-11)
    x264 configuration : —bit-depth=8 —chroma-format=all
    libx264 configuration : —bit-depth=8 —chroma-format=all
    x264 license : GPL version 2 or later

    i need x264 0.120 for installing x264-plugins-ugly

    Thank you in advance.

  • ffmpeg conversion to mpeg2video

    19 novembre 2013, par spicyramen

    Need to play some video files from a Cisco DMP, and need to use mpeg2video for video and mp2 for audio.

    Im using ffmpeg -i to verify video format.

    This video plays correctly :

    Input #0, mpeg, from 'ATT_Telepresence_Scheduling.mpg':
     Duration: 00:07:14.08, start: 0.522456, bitrate: 474 kb/s
       Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 600x340 [SAR 1:1 DAR 30:17], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
       Stream #0:1[0x1c0]: Audio: mp2, 44100 Hz, stereo, s16p, 128 kb/s

    This video does not play(Black screen) :

    Input #0, mpegts, from 'Telepresence_part2.ts':
    Duration: 00:02:32.83, start: 1.000000, bitrate: 8783 kb/s
    Program 1
    Stream #0:0[0x45]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 163 kb/s
    Stream #0:1[0x44]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 29.92 fps, 29.92 tbr, 90k tbn, 59.82 tbc

    How to perform the conversion to mpeg and to video mpeg2video and audio mp2 and preserve HD quality ?