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• avformat/ty : try harder to find stream signature

  6 novembre 2017, par Paul B Mahol

  avformat/ty : try harder to find stream signature
  Search all chunks, not just first one.
  Signed-off-by : Paul B Mahol <onemda@gmail.com>
  

  • [DH] libavformat/ty.c

• Upgrade ffmpeg (or rust) on OSX 10.12 cannot find make

  22 septembre 2020, par gemp

  Trying to brew upgrade ffmpeg on OSX 10.12 Sierra but when it arrived to install rust I had the following error :

  


  make: error: unable to find utility "make", not a developer tool or in PATH
xcodebuild: error: SDK "/Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk" cannot be located.
clang: error: unable to find utility "clang", not a developer tool or in PATH


  


  But which make gives /usr/bin/make and xcrun make is recognized and
  
ls -l /Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk gives
  
lrwxr-xr-x  1 root  wheel  10 Dec 21  2017 /Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk -> MacOSX.sdk

  


  How can I force the rust install to use /usr/bin/make instead of the XTools one ? Or something else.

  


  EDIT

  


  I have rustc 1.46.0 which is the dependency that Homebrew wants ./configure --prefix=/usr/local/Cellar/rust/1.46.0 --release-channel=stable

  


• How to use original names when using find -exec ?

  27 mai 2023, par ironsand

  There are .mp4 files I want to convert.

  



  $ find . -name '*.mp4'
./01.mp4
./02.mp4
./03.mp4


  



  I expected to output files copy-01.mp4, copy-02.mp4 and copy-03.mp4 with this command.

  



  find . -name '*.mp4' -exec ffmpeg -i {} -c copy -aspect 16:9 copy-{} ";"


  



  But it failed with errors Unable to find a suitable output format for 'copy-'.
I thought {} represents the file name, isn't it ?

  



  How can I use original file names when using -exec option of find ?

  



  The find version is :

  



  $ find --version
find (GNU findutils) 4.4.2
Copyright (C) 2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later /gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Eric B. Decker, James Youngman, and Kevin Dalley.
Built using GNU gnulib version e5573b1bad88bfabcda181b9e0125fb0c52b7d3b
Features enabled: O_NOFOLLOW(disabled) LEAF_OPTIMISATION FTS() CBO(level=0)


  



  This is xargs version.

  



  xargs --version
xargs (GNU findutils) 4.4.2
Copyright (C) 2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later /gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Eric B. Decker, James Youngman, and Kevin Dalley.
Built using GNU gnulib version e5573b1bad88bfabcda181b9e0125fb0c52b7d3b


  



  Result of ffmpeg

  



  $ find * -type f -name '*.mp4' -exec ffmpeg -i {} -c copy -aspect 16:9 copy-{} ";"

# almost same outputs several times here.

ffmpeg version N-50911-g9efcfbe Copyright (c) 2000-2013 the FFmpeg developers
  built on Mar 13 2013 21:26:48 with gcc 4.7.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  libavutil      52. 19.100 / 52. 19.100
  libavcodec     55.  0.100 / 55.  0.100
  libavformat    55.  0.100 / 55.  0.100
  libavdevice    54.  4.100 / 54.  4.100
  libavfilter     3. 45.103 /  3. 45.103
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '24.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isomavc1
    creation_time   : 2012-11-01 13:42:12
    encoder         : HandBrake 0.9.8 2012071700
  Duration: 00:24:58.62, start: 0.000000, bitrate: 474 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x256, 341 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc
    Metadata:
      creation_time   : 2012-11-01 13:42:12
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s
    Metadata:
      creation_time   : 2012-11-01 13:42:12