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Autres articles (40)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (6708)

  • Copy m3u8 segment files on a single mp4 format

    26 juin 2018, par parsa

    Hi I used below command for copy m3u8 segment files to a single mp4 file :
    I run this command on c# Process class.

        -y -i "D:\OtherProjects\ConvertProj\video\2018\4\1\m3u8\200p\out.m3u8"  
    
    -y -i "D:\OtherProjects\ConvertProj\video\2018\4\1\m3u8\360p\out.m3u8"  
    
    -y -i "D:\OtherProjects\ConvertProj\video\2018\4\1\m3u8\480p\out.m3u8"  
    
    -y -i "D:\OtherProjects\ConvertProj\video\2018\4\1\m3u8\720p\out.m3u8" 
    
-map 0 -c:v copy -c:a copy -threads 0 "D:\OtherProjects\ConvertProj\video\2018\4\1\1-200.mp4" 
    
-map 1 -c:v copy -c:a copy -threads 0 "D:\OtherProjects\ConvertProj\video\2018\4\1\1-360.mp4" 
    
-map 2 -c:v copy -c:a copy -threads 0 "D:\OtherProjects\ConvertProj\video\2018\4\1\1-480.mp4" 
    
-map 3 -c:v copy -c:a copy -threads 0 "D:\OtherProjects\ConvertProj\video\2018\4\1\1.mp4"

    I get this Error :

    [hls,applehttp @ 00000000047e3400] Failed to open segment of playlist 0
    
    Last message repeated 353 times
    
[hls,applehttp @ 00000000047e3400] Error when loading first segment 'out0.ts'
    
D:\OtherProjects\ConvertProj\video\2018\4\6208-3905956\m3u8\200p\out.m3u8: Invalid data found when processing input

    What is the problem ? Waht I must be do ? Is this a bug ?

  • Synchronizing RTSP signals with FFMPEG

    3 décembre 2019, par Taits

    I have achieved to merge two RTSP signals in one with FFMPEG but in the resulting stream, the first input has a delay of between 2 and 5 seconds with respect to the second. And it is always the first input that is delayed compared to the second.

    The two RTSP signals come from the same camera model, same configuration, same room ...

    However, if I put the same RTSP signal (either of the two) as input 1 and input 2, the same thing happens. Despite being the same signal, the first input is delayed compared to the second one.

    How could I get them synchronized ?

    This is the command that I execute :

    ffmpeg -rtsp_transport tcp -thread_queue_size 512 -rtbufsize 50M -r 15 
    
-i rtsp://XXXX -rtsp_transport tcp -thread_queue_size 512 -rtbufsize 50M -r 15 
    
-c:a aac -i rtsp://YYYY -filter_complex "[0:v]pad=iw*2:ih,setpts=PTS-STARTPTS[bg]; 
    
[1:v]setpts=PTS-STARTPTS[fg]; [bg][fg]overlay=w[out]" -map "[out]" -f hls 
    
-hls_time 2 -hls_list_size 5 -use_localtime 1 -use_localtime_mkdir 1 
    
-hls_segment_filename 'LIVE/file-%s.ts' -map a -ar 16000 -ac 1 -ab 64000 -c:a aac 
    
-y output.m3u8

    Here you have the process informationn :

    ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers 
    
built with Apple LLVM version 9.0.0 (clang-900.0.39.2) 
    
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
[rtsp @ 0x7fe284000e00] Missing PPS in sprop-parameter-sets, ignoring
    
Input #0, rtsp, from 'rtsp://XXXX':
    
  Metadata:
    
    title           : Media Presentation
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1280x720, 15 fps, 15 tbr, 90k tbn, 30 tbc
    
    Stream #0:1: Audio: aac (LC), 16000 Hz, mono, fltp
    
[rtsp @ 0x7fe28484de00] Missing PPS in sprop-parameter-sets, ignoring
    
Input #1, rtsp, from 'rtsp://XXXX':
    
  Metadata:
    
    title           : Media Presentation
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: h264 (Main), yuv420p(progressive), 1280x720, 15 fps, 15 tbr, 90k tbn, 30 tbc
    
    Stream #1:1: Audio: aac (LC), 16000 Hz, mono, fltp
    
Stream mapping:
    
  Stream #0:0 (h264) -> pad (graph 0)
    
  Stream #1:0 (h264) -> setpts (graph 0)
    
  overlay (graph 0) -> Stream #0:0 (libx264)
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x7fe286802000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0x7fe286802000] profile High, level 4.0
    
[libx264 @ 0x7fe286802000] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=12 lookahead_threads=2 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=1 weightp=2 keyint=250 keyint_min=15 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
    
[hls @ 0x7fe286800000] Opening 'LIVE/file-1524728763.ts' for writing
    
Output #0, hls, to 'output.m3u8':
    
  Metadata:
    
    title           : Media Presentation
    
    encoder         : Lavf57.83.100
    
    Stream #0:0: Video: h264 (libx264), yuv420p, 2560x720, q=-1--1, 15 fps, 90k tbn, 15 tbc (default)
    
    Metadata:
    
      encoder         : Lavc57.107.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: aac (LC), 16000 Hz, mono, fltp, 64 kb/s
    
    Metadata:
    
      encoder         : Lavc57.107.100 aac
    
[hls @ 0x7fe286800000] Opening 'LIVE/file-1524728782.ts' for writinged=1.09x    
    
[hls @ 0x7fe286800000] Opening 'output.m3u8.tmp' for writing
    
[hls @ 0x7fe286800000] Opening 'output.m3u8.tmp' for writing=N/A speed=1.07x    
    
frame=  396 fps= 15 q=-1.0 Lsize=N/A time=00:00:27.00 bitrate=N/A speed=1.05x    
    
video:2946kB audio:147kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

  • Suppress black margins on the sides of an animation

    26 avril 2018, par Clinton Winant

    I need to make an animation out of a collection of jpeg images. The image size, as given by display, is 1200x900. I can control the size of the jpg images with convert, but not sure what a good size would be. I use the following ffmpeg call :

    ffmpeg -f image2 -i img%04d.jpg -r 24  sound.avi

    In spite of a long string of warnings like

    Past duration 0.879997 too large

    sound.avi is produced, however the animation includes black right and left margins (see attached screen shot of the first frame)

    totem - frame 1

    that I need to suppress. I am under the impression that the 4x3 format of the jpg images is standard ? I view the animation with

    mplayer sound.avi

    The OS is Debian buster

    Further experiments suggest that the black margins disappear if the jpg files have an aspect ratio 16:9. Is that the only AR possible ?

    The output of

    ffmpeg -f image2 -i img%04d.jpg -vf cropdetect -vframes 5 -f null

    requested by @Gyan is

    ffmpeg version 3.4.2-2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 7 (Debian 7.3.0-15)
    
  configuration: --prefix=/usr --extra-version=2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
Trailing options were found on the commandline.
    
Input #0, image2, from 'img%04d.jpg':
    
  Duration: 00:00:00.40, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1200x900 [SAR 150:150 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 25 tbc

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