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• Building FFMPEG library for iOS6.0 ARMv7 Processor

  15 août 2013, par Jimmy

  WARNING :

  I was just informed by another user that there are some legal issues revolving around using FFMPEG for iOS, leaving the link here http://multinc.com/2009/08/24/compatibility-between-the-iphone-app-store-and-the-lgpl/

  I cleaned up my question a little bit, when I wrote it the first time I was flustered. Now I can be more clear after taking a small break.

  Edit : learned that you have to build for ARMv7, ARMv7s and iOS6.0

  I'm trying to use the FFMPEG library in an XCode 4.5.1 project. And I'm trying to build it for ARMv7. What I'm looking for is the exact process, and some explanation. I understand that this is not a well documented problem. But I know that other pople have had the same problem as me.

  What I have been able to do.

  I have been able to build the library for testing.

  1) I have been able to clone ffmpeg. For beginners this will get you started by creating a directory with the ffmpeg source. (Kudos to the guys who wrote it)

  git clone git ://source.ffmpeg.org/ffmpeg.git ffmpeg

  2) I have been able to write a config file that doesn't have any errors. We will go back to this part later. This is the command I attach to ./configure

  ./configure
  —disable-doc
  —disable-ffmpeg
  —disable-ffplay
  —disable-ffserver
  —enable-cross-compile
  —arch=arm
  —target-os=darwin
  —cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2

  —as='gas-preprocessor/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2'

  —sysroot=/applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk

  —cpu=cortex-a8
  —extra-ldflags='-arch=armv7 -isysroot /applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk'
  —enable-pic —disable-bzlib —disable-gpl —disable-shared —enable-static —disable-mmx —disable-debug —disable-neon —extra-cflags='-pipe -Os -gdwarf-2 -isysroot /applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk
  -m$thumb_opt :-no-thumb -mthumb-interwork'

  These are some things to note.

  • I had to download ( https://github.com/yuvi/gas-preprocessor ) copy the file gas-preprocessor.pl at /usr/local/bin. Set permissions to read write (777)
  • Make sure I'm using the right GCC compiler : /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2
  • Make sure I'm using the right SDK : /applications/xcode.app/contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk
  • —extra-cflags="-arch armv7" causes : error : unrecognized command line option “-arch”

  Here in lies the problem.

  I can include the library like so

  libavcodec/avcodec.h

  But when I started to write the encoder. I received this warning, and countless errors.

  ignoring file /Users/Jimmy/Development/source.ffmpeg/Library/libavutil.a, file was built for archive which is not the architecture being linked (armv7s) : /Users/Jimmy/Development/source.ffmpeg/Library/libavutil.a

  That means that I didn't build the right binary.

  What I'm looking for is someone whose done it before, to walk all of us through the process of building FFMPEG for iOS6.0 and ARMv7 and the majority of things to look out for. Thanks a ton.

• VP8 and WebM, not working in ffmpeg-php [migrated]

  6 octobre 2012, par Olaf Erlandsen

  I need a help with ffmpeg-php and Ffmpeg.

  Ffmpeg :

  ffmpeg version 1.0.git
  
  built on Oct  6 2012 01:54:50 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
  
  configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3
  
  libavutil      51. 73.102 / 51. 73.102
  
  libavcodec     54. 63.100 / 54. 63.100
  
  libavformat    54. 29.105 / 54. 29.105
  
  libavdevice    54.  3.100 / 54.  3.100
  
  libavfilter     3. 19.102 /  3. 19.102
  
  libswscale      2.  1.101 /  2.  1.101
  
  libswresample   0. 16.100 /  0. 16.100
  
  libpostproc    52.  1.100 / 52.  1.100

  Ffmpeg-PHP

  FFmpeg 0.6.5
  
  libavutil     50.15. 1 / 50.15. 1
  
  libavcodec    52.72. 2 / 52.72. 2
  
  libavformat   52.64. 2 / 52.64. 2
  
  libavdevice   52. 2. 0 / 52. 2. 0
  
  libavfilter    1.19. 0 /  1.19. 0
  
  libswscale     0.11. 0 /  0.11. 0
  
  libpostproc   51. 2. 0 / 51. 2. 0

  FFMPEG-PHP Command :

  ffmpeg -y -i /f1ccd3a27d36270492ce660da358b436.mp4 -t 99 -f webm /f1ccd3a27d36270492ce660da358b436.webm

  FFMPEG(SSH) Command :

  ffmpeg -y -i /f1ccd3a27d36270492ce660da358b436.mp4 -t 99 -f webm /f1ccd3a27d36270492ce660da358b436.webm

  FFMPEG-PHP Output :

  FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
  
    configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libavfilter    1.19. 0 /  1.19. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  Seems stream 1 codec frame rate differs from container frame rate: 59.94 (2997/50) -> 29.97 (30000/1001)
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/f1ccd3a27d36270492ce660da358b436.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
    Duration: 00:04:16.32, start: 0.000000, bitrate: 650 kb/s
  
      Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16, 108 kb/s
  
      Stream #0.1(und): Video: h264, yuv420p, 480x360 [PAR 1:1 DAR 4:3], 539 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
  
  Output #0, webm, to '/f1ccd3a27d36270492ce660da358b436.webm':
  
      Stream #0.0(und): Video: 0x0000, yuv420p, 480x360 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
  
      Stream #0.1(und): Audio: 0x0000, 44100 Hz, stereo, s16, 64 kb/s
  
  Stream mapping:
  
    Stream #0.1 -> #0.0
  
    Stream #0.0 -> #0.1
  
  Encoder (codec id 146) not found for output stream #0.0

  FFMPEG(SSH) Output :

  ffmpeg version 1.0.git Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Oct  6 2012 01:54:50 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
  
    configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3
  
    libavutil      51. 73.102 / 51. 73.102
  
    libavcodec     54. 63.100 / 54. 63.100
  
    libavformat    54. 29.105 / 54. 29.105
  
    libavdevice    54.  3.100 / 54.  3.100
  
    libavfilter     3. 19.102 /  3. 19.102
  
    libswscale      2.  1.101 /  2.  1.101
  
    libswresample   0. 16.100 /  0. 16.100
  
    libpostproc    52.  1.100 / 52.  1.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/f1ccd3a27d36270492ce660da358b436.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
      creation_time   : 2009-12-23 02:00:55
  
    Duration: 00:04:16.32, start: 0.000000, bitrate: 650 kb/s
  
      Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 108 kb/s
  
      Metadata:
  
        creation_time   : 2009-12-23 02:00:55
  
        handler_name    : (C) 2007 Google Inc. v08.13.2007.
  
      Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 539 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
  
      Metadata:
  
        creation_time   : 2009-12-23 02:00:55
  
        handler_name    : (C) 2007 Google Inc. v08.13.2007.
  
  [libvpx @ 0x2166e00] v1.1.0
  
  Output #0, webm, to '/f1ccd3a27d36270492ce660da358b436.webm':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
      encoder         : Lavf54.29.105
  
      Stream #0:0(und): Video: vp8, yuv420p, 480x360 [SAR 1:1 DAR 4:3], q=-1--1, 200 kb/s, 1k tbn, 29.97 tbc
  
      Metadata:
  
        creation_time   : 2009-12-23 02:00:55
  
        handler_name    : (C) 2007 Google Inc. v08.13.2007.
  
      Stream #0:1(und): Audio: vorbis, 44100 Hz, stereo, flt
  
      Metadata:
  
        creation_time   : 2009-12-23 02:00:55
  
        handler_name    : (C) 2007 Google Inc. v08.13.2007.
  
  Stream mapping:
  
    Stream #0:1 -> #0:0 (h264 -> libvpx)
  
    Stream #0:0 -> #0:1 (aac -> libvorbis)
  
  Press [q] to stop, [?] for help
  
  [libvorbis @ 0x2167340] Que input is backward in time
  
  frame= 2968 fps= 61 q=0.0 Lsize=    4464kB time=00:01:39.03 bitrate= 369.3kbits/s
  
  video:3068kB audio:1319kB subtitle:0 global headers:4kB muxing overhead 1.662821%

  Error :

  Encoder (codec id 146) not found for output stream #0.0

• FFmpeg convert .mov to .ogv

  24 juillet 2016, par Morten Hauberg

  I have some troubles converting my .mov to a .ogg file using FFmpeg.

  This command should work, right ?

  ffmpeg -i test.mov -s 640x320 -vcodec libtheora -acodec libvorbis out.ogv

  It gives me this output

  [0] => FFmpeg version SVN-r0.5.9-4:0.5.9-1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  
  [1] =>   configuration: --extra-version=4:0.5.9-1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libdirac --enable-libgsm --enable-libopenjpeg --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdc1394 --enable-shared --disable-static
  
  [2] =>   libavutil     49.15. 0 / 49.15. 0
  
  [3] =>   libavcodec    52.20. 1 / 52.20. 1
  
  [4] =>   libavformat   52.31. 0 / 52.31. 0
  
  [5] =>   libavdevice   52. 1. 0 / 52. 1. 0
  
  [6] =>   libavfilter    0. 4. 0 /  0. 4. 0
  
  [7] =>   libswscale     0. 7. 1 /  0. 7. 1
  
  [8] =>   libpostproc   51. 2. 0 / 51. 2. 0
  
  [9] =>   built on Jun 10 2012 08:33:06, gcc: 4.4.5
  
  [10] => 
  
  [11] => Seems stream 0 codec frame rate differs from container frame rate: 1200.00 (1200/1) -> 30.00 (30/1)
  
  [12] => Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mov':
  
  [13] =>   Duration: 00:00:06.26, start: 0.000000, bitrate: 809 kb/s
  
  [14] =>     Stream #0.0(und): Video: h264, yuv420p, 480x360, 30 tbr, 600 tbn, 1200 tbc
  
  [15] =>     Stream #0.1(und): Audio: aac, 44100 Hz, mono, s16
  
  [16] => Output #0, ogg, to 'out.ogv':
  
  [17] =>     Stream #0.0(und): Video: libtheora, yuv420p, 640x320, q=2-31, 200 kb/s, 90k tbn, 30 tbc
  
  [18] =>     Stream #0.1(und): Audio: vorbis, 44100 Hz, mono, s16, 64 kb/s
  
  [19] => Stream mapping:
  
  [20] =>   Stream #0.0 -> #0.0
  
  [21] =>   Stream #0.1 -> #0.1
  
  [22] => Press [q] to stop encoding

  It seems right, right ?

  But the movie is only about 1 second long.
  Why is that ?

  I do not have access to ffmpeg2theora, so please dont suggest that :)