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Sur d’autres sites (12608)

  • configure : Check whether MSVC requires using the C89-to-C99 converter

    4 novembre 2013, par Martin Storsjö
    configure : Check whether MSVC requires using the C89-to-C99 converter

    MSVC does support enough of C99 to work without the converter since
    
the 2013 version. Try to detect which version of the compiler in
    
the path needs to run the C99 converter or not. When the converter
    
is omitted, compilation time is reduced quite drastically.
    

    Prior to this, users could still use —cc="c99conv -noconv cl"
    
when running MSVC 2013 to achieve the same.
    

    This checks the version number instead of doing a normal compile
    
test, since this check needs to be done earlier in configure, before
    
the normal compile test helpers are usable.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] configure

  • configure : Check whether MSVC requires using the C89-to-C99 converter

    4 novembre 2013, par Martin Storsjö
    configure : Check whether MSVC requires using the C89-to-C99 converter

    MSVC does support enough of C99 to work without the converter since
    
the 2013 version. Try to detect which version of the compiler in
    
the path needs to run the C99 converter or not. When the converter
    
is omitted, compilation time is reduced quite drastically.
    

    Prior to this, users could still use —cc="c99conv -noconv cl"
    
when running MSVC 2013 to achieve the same.
    

    This checks the version number instead of doing a normal compile
    
test, since this check needs to be done earlier in configure, before
    
the normal compile test helpers are usable.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] configure

  • ffmpeg minimal requirements configuration for encoding and decoding h264 files

    14 novembre 2013, par TheSquad

    I'm trying to compile ffmpeg with minimal requirements in order to encode/decode with h264.

    So far my command line configuration is :

    ./configure --disable-yasm --disable-everything --enable-encoder=libx264 --enable-encoder=libfaac --enable-decoder=h264 --enable-muxer=h264 --enable-demuxer=h264 --enable-parser=h264 --enable-protocol=file

    once compiled, I try this :

    ./ffmpeg -i ~/Dropbox/TestFile.mov -vcodec libx264 test.mp4

    but I get an error :

      ffmpeg version N-58081-g2925571 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Nov 14 2013 15:49:58 with Apple LLVM version 5.0 (clang-500.2.76) (based on LLVM 3.3svn)
    
  configuration: --disable-yasm --disable-everything --enable-encoder=libx264 --enable-encoder=libfaac --enable-decoder=h264 --enable-muxer=h264 --enable-demuxer=h264 --enable-parser=h264 --enable-protocol=file
    
  libavutil      52. 52.100 / 52. 52.100
    
  libavcodec     55. 43.100 / 55. 43.100
    
  libavformat    55. 21.100 / 55. 21.100
    
  libavdevice    55.  5.100 / 55.  5.100
    
  libavfilter     3. 91.100 /  3. 91.100
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from &#39;/Users/mGs/Dropbox/TestFile.mov&#39;:
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2013-06-23 14:33:09
    
    model           : iPhone 4S
    
    model-fra       : iPhone 4S
    
    encoder         : 6.0
    
    encoder-fra     : 6.0
    
    date            : 2013-06-23T16:33:09+0200
    
    date-fra        : 2013-06-23T16:33:09+0200
    
    make            : Apple
    
    make-fra        : Apple
    
  Duration: 00:00:42.09, start: 0.000000, bitrate: 20960 kb/s
    
    Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 20880 kb/s, 29.97 fps, 29.97 tbr, 600 tbn, 1200 tbc (default)
    
    Metadata:
    
      rotate          : 180
    
      creation_time   : 2013-06-23 14:33:09
    
      handler_name    : Core Media Data Handler
    
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, 63 kb/s (default)
    
    Metadata:
    
      creation_time   : 2013-06-23 14:33:09
    
      handler_name    : Core Media Data Handler
    
[NULL @ 0x7fd999802e00] Unable to find a suitable output format for &#39;test.mp4&#39;
    
test.mp4: Invalid argument

    This is probably coming from the fact that I have forgot something to enable on the ffmpeg configuration... But I can't found out what.

    The test file is a video got from iPhone 4S Camera.

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