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• How to convert .mov files to .mp4 (H264) using ffmpeg using windows .bat file ?

  13 juillet 2013, par kheya

  I have a number of different video files (mov, avi, flv, mp4, 3gp, wmv) in a folder.

  I need to use a batch file that will convert all mov, avi, wmv, 3gp files in the folder
  Also I need to skip any flv, mp4 files

  I have this command, but it gives error and generates 0 size files :

  for %%F in (*.mov) do ffmpeg.exe -i "%%~fF" -vcodec copy -acodec copy "%%~dpF\%%~nF.mp4"

  The above line just tries to process mov files. I get same result for avi files.

  I want to keep the file name same. I get the file names correctly but it gives error :

      ffmpeg version N-54691-g7f4a1fd Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jul 12 2013 16:31:48 with gcc 4.7.3 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
  
  e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
  
  ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
  
  ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
  
  eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-
  
  amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --
  
  enable-libxvid --enable-zlib
  
    libavutil      52. 39.100 / 52. 39.100
  
    libavcodec     55. 18.102 / 55. 18.102
  
    libavformat    55. 12.102 / 55. 12.102
  
    libavdevice    55.  3.100 / 55.  3.100
  
    libavfilter     3. 80.101 /  3. 80.101
  
    libswscale      2.  3.100 /  2.  3.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Guessed Channel Layout for  Input Stream #0.1 : mono
  
  Input #0, avi, from 'C:\musa\Challenge\FFMPEG\Test\file5.AVI':
  
    Metadata:
  
      encoder         : OPTURA20
  
    Duration: 00:00:10.01, start: 0.000000, bitrate: 1518 kb/s
  
      Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p, 320x240, 14.99 fps,
  
   14.99 tbr, 14.99 tbn, 14.99 tbc
  
      Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16,
  
  256 kb/s
  
  [mp4 @ 00000000024bc980] Tag [1][0][0][0]/0x00000001 incompatible with output co
  
  dec id '65536' ([0][0][0][0])
  
  Output #0, mp4, to 'C:\musa\Challenge\FFMPEG\Test\\file5.mp4':
  
    Metadata:
  
      encoder         : OPTURA20
  
      Stream #0:0: Video: mjpeg (l[0][0][0] / 0x006C), yuvj422p, 320x240, q=2-31,
  
  14.99 fps, 90k tbn, 14.99 tbc
  
      Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, 256 k
  
  b/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Could not write header for output file #0 (incorrect codec parameters ?): Invali
  
  d data found when processing input

• FFMPEG giving error on compiling on Windows

  1er août 2014, par user2384410

  Hi I am trying to build FFMPEG following :http://www.roman10.net/how-to-build-ffmpeg-with-ndk-r9/
  I have set up all the things including changes in configure file and preparing build_android.sh but when I am trying to compile this using cygwin on my Windows machine,I get following error :-

  d :/android-ndk/android-ndk-r10/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe : error : libavutil/libavutil.so:1:1 : syntax error, unexpected ’ !’, expecting $end

  I am using NDK-r10 and Windows-7(64-bit).

• FFmpeg development on Eclipse on Windows

  10 juillet 2013, par Juan Ayala

  The first thing I did was to refer to tutorial on FFmpeg site.

  I set up MSYS+MinGW64, I cloned all the relevant pre-requisites (i.e OpenSSL, x264, rtmpdump),
  I successfully cross-compiled them all. I ran the configure for FFmpeg, and I was able to cross-compile that as well. And my statically linked ffmpeg.exe works to my satisfaction.

  In Eclipse I was able to create a project, load up the source code, navigate it, make some changes, even compile and step-through debug. The problem I am having is with the Eclipse design-time error, and I think this is more of an Eclipse/C++ thing than FFmpeg.

  For example in ffmpeg.c I find this error "Field 'bitstream_filters' could not be resolved" at this line :

  AVBitStreamFilterContext *bsfc = output_streams[i]->bitstream_filters;

  that output_streams is of type

  OutputStream **output_streams

  and when I try to open the declaration for OutputStream Eclipse gives me the option of two locations. Obviously Eclipse is not sure which of these declarations it is, hence the "could not be resolved" error. OutputStream is defined in the following 2 files

  • ffmpeg.h
  • libavformat/smoothstreamingenc.c

  (hmm nice to know FFmpeg can do smooth streaming...) but anyway the correct definition would of been the one in ffmpeg.h.

  So... the whole goal of getting the source into an IDE was so that I could enjoy the benefits of such things like intelisense. What can I do in Eclipse to set some sort of order or rule as to how it should resolve types in cases where the names clash like this ?