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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.
    You may also (...)

  • 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 (...)

Sur d’autres sites (7344)

  • EC2 for video-encoding

    24 septembre 2012, par TK Kocheran

    I have a potential job which will require me to do some video encoding with FFMPEG and x264. I'll have a series of files which I'll need to encode once, then I'll be able to bring down the instances. Since I'm not really sure of the resource utilization of x264 and FFMPEG, what kind of instances should I get ? I'm thinking either a

    High-CPU Extra Large Instance

    7 GB of memory
    20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each)
    1690 GB of instance storage
    64-bit platform
    I/O Performance : High
    API name : c1.xlarge

    or, alternatively a

    Cluster GPU Quadruple Extra Large Instance

    22 GB of memory
    33.5 EC2 Compute Units (2 x Intel Xeon X5570, quad-core “Nehalem” architecture)
    2 x NVIDIA Tesla “Fermi” M2050 GPUs
    1690 GB of instance storage
    64-bit platform
    I/O Performance : Very High (10 Gigabit Ethernet)
    API name : cg1.4xlarge

    What should I use ? Does x264/FFMPEG perform better with faster/more CPUs or does it really pound the GPU more ? In any case, it seems that the Cluster GPU seems to be the higher performance instance. What should I prefer ?

  • EC2 for video-encoding

    24 septembre 2012, par TK Kocheran

    I have a potential job which will require me to do some video encoding with FFMPEG and x264. I'll have a series of files which I'll need to encode once, then I'll be able to bring down the instances. Since I'm not really sure of the resource utilization of x264 and FFMPEG, what kind of instances should I get ? I'm thinking either a

    High-CPU Extra Large Instance

    7 GB of memory
    20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each)
    1690 GB of instance storage
    64-bit platform
    I/O Performance : High
    API name : c1.xlarge

    or, alternatively a

    Cluster GPU Quadruple Extra Large Instance

    22 GB of memory
    33.5 EC2 Compute Units (2 x Intel Xeon X5570, quad-core “Nehalem” architecture)
    2 x NVIDIA Tesla “Fermi” M2050 GPUs
    1690 GB of instance storage
    64-bit platform
    I/O Performance : Very High (10 Gigabit Ethernet)
    API name : cg1.4xlarge

    What should I use ? Does x264/FFMPEG perform better with faster/more CPUs or does it really pound the GPU more ? In any case, it seems that the Cluster GPU seems to be the higher performance instance. What should I prefer ?

  • Resize video using FFmpeg C API

    28 février 2012, par cr_az

    I am trying to resize video file on Android device using FFmpeg. Remark : I cant use FFmpeg as binary - in my case it should be used as shared library (only FFmpeg C API is accessible).

    I did not find any documentation regarding video resizing, however it looks like algorithm is following :

    10 OPEN video_stream FROM video.mp4
    
20 READ packet FROM video_stream INTO frame
    
30 IF frame NOT COMPLETE GOTO 20
    
40 RESIZE frame
    
50 WRITE frame TO converted_video.mp4
    
60 GOTO 20

    Should I use sws_scale function in order to resize frame ? Is there any other (easier ?) way to resize video file using FFmpeg C API ?

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