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    Puis-je poster des contenus à partir d’une tablette Ipad ?
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  • 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.
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Sur d’autres sites (7193)

  • installing ffmpeg on Mac fail

    23 juillet 2022, par wei wang

    I tried to install ffmpeg on Mac(macOS 10.13) with : brew install ffmpeg

    


    but I got below ....

    


    Updating Homebrew...
Warning: You are using macOS 10.13.
We (and Apple) do not provide support for this old version.
You will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew's GitHub,
Twitter or any other official channels. You are responsible for resolving
any issues you experience while you are running this
old version.

Error: ffmpeg: no bottle available!
You can try to install from source with:
  brew install --build-from-source ffmpeg
Please note building from source is unsupported. You will encounter build
failures with some formulae. If you experience any issues please create pull
requests instead of asking for help on Homebrew's GitHub, Twitter or any other
official channels.


    


  • Encode PCM to MPEG-2 AAC with FFmpeg APIs

    13 août 2019, par Tank2006

    My environment is "ffmpeg version 3.4.6-0ubuntu0.18.04.1"

    I wrote a program to encode audio data into MPEG-2 AAC with reference to an official example.

    First, I simply changed the encoder value(and the full source code I wrote is here).

    if (!(output_codec = avcodec_find_encoder(AV_CODEC_ID_AAC))) {

    But FFmpeg S/PDIF encoder(spdifenc.c) returns an error “Wrong AAC file format”.

    I use avctx->profile = FF_PROFILE_MPEG2_AAC_LOW(FF_PROFILE_MPEG2_AAC_HE); but it takes no effects.

    Considering the possibility that the official binary was not compiled with the "CONFIG_ADTS_HEADER" C flag, I ran the following code directly as this :

    buf = output_packet.data;
    
int err = init_get_bits8(&gb, buf, 7);
    
if (get_bits(gbc, 12) != 0xfff) return AAC_AC3_PARSE_ERROR_SYNC;

    This didn’t find ADTS header "0xFFF", therefore, an encoder doesn’t seem to work as expected.

    How do I encode ffmpeg-2 aac audio with ffmpeg apis ?

  • How convert High bitrate mp3 to lower rate using ffmpeg in android

    23 mars 2018, par Android Team

    We want to convert 320kbps mp3 file to 128kbps mp3 so currently we are using below ffmpeg command but its not working.

    ffmpeg -i input.mp3 -codec:a libmp3lame -qscale:a 5 output.mp3

    Result :-the output bitrate same as input mp3.

    And we are following the FFmpeg Encoding guideline for that here is the link :- https://trac.ffmpeg.org/wiki/Encode/MP3

    so please suggest any solution.

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