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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
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Sur d’autres sites (7423)

  • Video Capture using Beaglebone black (Raw video to MP4)

    21 mars 2014, par user3435464

    Good Day,

    I just captured a raw video using the command from my PS3 Eye Camera on my beagleboard. I had captured about 10s of raw video in 320*240, and the format used was YUYV

    ./capture -f -c 300 -o > output.raw

    I successfully got the raw video (was about 40MB)

    Now, I needed to figure out how to convert this raw video to an mp4 file : I have been trying out various ffmpeg commands but to no avail

    root@beaglebone:~/Desktop/boneCV# ffmpeg -vcodec rawvideo -f rawvideo -pix_fmt yuv422p -        i output.raw -s 320x240 -r 25

    -vcodec libx264 -an -vpre slower -crf 25
    ffmpeg version v0.8.4, Copyright (c) 2000-2012 the Libav developers built on Jul 3 2013 19:28:08 with gcc 4.7.3 20130205
    (prerelease) This program is not developed anymore and is only
    provided for compatibility. Use avconv instead (see Changelog for the
    list of incompatible changes). [IMGUTILS @ 0xbed475dc] Picture size
    0x0 is invalid [IMGUTILS @ 0xbed4751c] Picture size 0x0 is invalid
    [rawvideo @ 0x2dac0] Could not find codec parameters (Video : rawvideo,
    yuv422p) [rawvideo @ 0x2dac0] Estimating duration from bitrate, this
    may be inaccurate output.raw : could not find codec parameters

    This is the ffmpeg log of my camera type :

    ffmpeg -f video4linux2 -list_formats all -i /dev/video0      
    
[video4linux2 @ 0x2db80] R :   yuyv422 :                 YUYV : 320x240 640x480

    Does anyone have experience converting such raw video formats to MP4 ?

  • is it legal/free to use ffmpeg to decode wma/mms stream in a commercial ios app ? [on hold]

    12 mars 2014, par Greg314

    I've been looking for hours but can't find a simple answer to this question : is it legal/free to use ffmpeg to decode wma/mms stream in a commercial ios app ?

    the ffmpeg website clearly states there are legal issues http://www.ffmpeg.org/legal.html

    some people say issues relate to AAC and H264 Licensing questions

    I just need to know if I can use ffmpeg freely to read wma (mms) stream in an ios app, or if I need to pay royalties to Microsoft for that (quite expensive : http://wmlicense.smdisp.net/filePU/WM%20Components%20Final%20Product%20Agreement%20-%20SAMPLE%20%20(10-05-2012).pdf)

    thanks for your help !

    regards

  • ffmpeg missing blend filter

    13 mars 2014, par user2927954

    I am working on android project using ffmpeg library. I followed instruction from : https://github.com/guardianproject/android-ffmpeg to build ffmpeg library for android. All are OK.

    Now, i am testing filters that corresponding to video filter of this library such as : drawtext, scale, pad, ... Most of them worked fine, but i have problem with "blend" filter.

    I try with commands : ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex blend=all_expr='if(eq(mod(X,2),mod(Y,2)),A,B)' -y out.mp4 and recieve error : no such blend filter.

    Do you know how i configure to enable this filter ?

    Here is the output result :

    ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
    
  built on Feb 27 2014 05:23:20 with gcc 4.6 20120106 (prerelease)
    
  configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/home/admin/workspace/android-ndk-r9c/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/arm-linux-androideabi- --sysroot=/home/admin/workspace/android-ndk-r9c/platforms/android-3/arch-arm --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon' --extra-ldflags=-L../x264 --enable-version3 --enable-gpl --disable-doc --enable-yasm --enable-decoders --enable-encoders --enable-muxers --enable-demuxers --enable-parsers --enable-protocols --enable-filters --enable-avresample --enable-libfreetype --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib --enable-muxer=md5
    
  libavutil      51. 54.100 / 51. 54.100
    
  libavcodec     54. 23.100 / 54. 23.100
    
  libavformat    54.  6.100 / 54.  6.100
    
  libavdevice    54.  0.100 / 54.  0.100
    
  libavfilter     2. 77.100 /  2. 77.100
    
  libswscale      2.  1.100 /  2.  1.100
    
  libswresample   0. 15.100 /  0. 15.100
    
  libpostproc    52.  0.100 / 52.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/videokit/in.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 0
    
    compatible_brands: isom3gp4
    
    creation_time   : 2014-03-04 08:53:01
    
  Duration: 00:00:15.10, start: 0.000000, bitrate: 7055 kb/s
    
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 6935 kb/s, SAR 65536:65536 DAR 16:9, 17.18 fps, 34.42 tbr, 90k tbn, 180k tbc
    
    Metadata:
    
      creation_time   : 2014-03-04 08:53:01
    
      handler_name    : VideoHandle
    
    Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 16000 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 2014-03-04 08:53:01
    
      handler_name    : SoundHandle
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/videokit/7.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    encoder         : Lavf53.12.0
    
    comment         : Courtesy of National Geographic.  Used by Permission.
    
  Duration: 00:00:04.20, start: 0.000000, bitrate: 1601 kb/s
    
    Stream #1:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 1472 kb/s, 10 fps, 10 tbr, 10 tbn, 10 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : VideoHandler
    
    Stream #1:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 128 kb/s
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
      handler_name    : SoundHandler
    
No such filter: 'blend'
    
Error configuring filters.

    Thanks

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