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• How to compile ffmpeg and x264 with thread support for android ?

  18 mai 2017, par Sureshkumar Menon

  i want to compile both x264 and ffmpeg with thread support for ANDROID .FFmpeg and x264 didn’t compile with thread support even after enabling enable-pthreads and enable-threads respectively.

  Both the config.h contains #define HAVE_THREAD 0 and #define HAVE_PTHREADS 0

  1.How to compile with thread support.
  2.Second question is that when i increase the gop size from 1 to some other value encoder returns 0 for certain subsequent frames.This causes a delay more than 3 to 5 seconds in vide playing

• How to solve libx264 not found when building ffmpeg-with-libx264-enabled for android ?

  6 mars 2012, par newentry

  i am trying build android-ffmpeg-x264 downloaded from git. Link https://github.com/halfninja/android-ffmpeg-x264

  After running ./config_make_everything.sh i am getting following error

  ERROR : libx264 not found

  If you think configure made a mistake, make sure you are using the latest
  version from Git. If the latest version fails, report the problem to the
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "config.log" produced by configure as this will help
  solving the problem.

  <pre>
  
  Makefile:1: config.mak: No such file or directory
  
  libavutil/Makefile:1: libavutil/../config.mak: No such file or directory
  
  libavutil/../subdir.mak:96: warning: overriding commands for target `libavutil/&#39;
  
  libavutil/../subdir.mak:26: warning: ignoring old commands for target `libavutil/&#39;
  
  libavutil/../subdir.mak:96: warning: overriding commands for target `libavutil/&#39;
  
  libavutil/../subdir.mak:96: warning: ignoring old commands for target `libavutil/&#39;
  
  
  
  tests/Makefile:44: /tests/fate.mak: No such file or directory
  
  tests/Makefile:45: /tests/fate2.mak: No such file or directory
  
  tests/Makefile:47: /tests/fate/aac.mak: No such file or directory
  
  tests/Makefile:48: /tests/fate/als.mak: No such file or directory
  
  tests/Makefile:49: /tests/fate/fft.mak: No such file or directory
  
  tests/Makefile:50: /tests/fate/h264.mak: No such file or directory
  
  tests/Makefile:51: /tests/fate/mp3.mak: No such file or directory
  
  tests/Makefile:52: /tests/fate/vorbis.mak: No such file or directory
  
  tests/Makefile:53: /tests/fate/vp8.mak: No such file or directory
  
  make: *** No rule to make target `/tests/fate/vp8.mak&#39;.  Stop.
  
  </pre>

  config.log contains

  <pre>
  
      ratecontrol.c:(.text+0xa400): undefined reference to `memset&#39;
  
  ratecontrol.c:(.text+0xa41c): undefined reference to `memset&#39;
  
  ratecontrol.c:(.text+0xa448): undefined reference to `__aeabi_l2d&#39;
  
  ratecontrol.c:(.text+0xa49c): undefined reference to `__aeabi_ldivmod&#39;
  
  ratecontrol.c:(.text+0xa4a0): undefined reference to `__aeabi_l2d&#39;
  
  ratecontrol.c:(.text+0xa4f8): undefined reference to `__aeabi_idivmod&#39;
  
  ratecontrol.c:(.text+0xa794): undefined reference to `__aeabi_l2d&#39;
  
  ../x264/libx264.a(set.o): In function `x264_validate_levels&#39;:
  
  set.c:(.text+0x200): undefined reference to `__aeabi_ldivmod&#39;
  
  set.c:(.text+0x334): undefined reference to `__aeabi_idiv&#39;
  
  ../x264/libx264.a(set.o): In function `x264_sei_version_write&#39;:
  
  set.c:(.text+0xeec): undefined reference to `strlen&#39;
  
  set.c:(.text+0xf10): undefined reference to `memcpy&#39;
  
  set.c:(.text+0xf3c): undefined reference to `sprintf&#39;
  
  set.c:(.text+0xf44): undefined reference to `strlen&#39;
  
  ../x264/libx264.a(set.o): In function `scaling_list_write&#39;:
  
  set.c:(.text+0x20b0): undefined reference to `memcmp&#39;
  
  set.c:(.text+0x2138): undefined reference to `memcmp&#39;
  
  set.c:(.text+0x2158): undefined reference to `memcmp&#39;
  
  ../x264/libx264.a(set.o): In function `x264_pps_write&#39;:
  
  set.c:(.text+0x5870): undefined reference to `memcmp&#39;
  
  set.c:(.text+0x5a7c): undefined reference to `memcmp&#39;
  
  ../x264/libx264.a(set.o):set.c:(.text+0x5a9c): more undefined references to `memcmp&#39; follow
  
  ../x264/libx264.a(macroblock.o): In function `x264_noise_reduction_update&#39;:
  
  macroblock.c:(.text+0xe10): undefined reference to `__aeabi_uldivmod&#39;
  
  ../x264/libx264.a(macroblock.o): In function `x264_predict_lossless_8x8_chroma&#39;:
  
  macroblock.c:(.text+0x3224): undefined reference to `memcpy&#39;
  
  macroblock.c:(.text+0x323c): undefined reference to `memcpy&#39;
  
  ../x264/libx264.a(cabac.o): In function `x264_macroblock_write_cabac&#39;:
  
  cabac.c:(.text+0x2c58): undefined reference to `__assert2&#39;
  
  cabac.c:(.text+0x2dd8): undefined reference to `__assert2&#39;
  
  cabac.c:(.text+0x2f80): undefined reference to `__assert2&#39;
  
  cabac.c:(.text+0x3020): undefined reference to `__assert2&#39;
  
  ../x264/libx264.a(rectangle.o): In function `x264_macroblock_cache_ref_1_1&#39;:
  
  rectangle.c:(.text+0x1e4): undefined reference to `__assert2&#39;
  
  ../x264/libx264.a(rectangle.o):rectangle.c:(.text+0x210): more undefined references to `__assert2&#39; follow
  
  ERROR: libx264 not found
  
  </pre>

  1.I am using fedora to build both ffmpeg and x264
  2.NDK r7

  Any solution to successfully build the code ?

• FFMpeg Android Stagefright SIGSEGV error (h264 decode)

  19 avril 2013, par Sergey Ochkur

  I need to decode h264 file to YUV on Android 2.3+. As I understand I need to communicate with Stagefright, as it`s the only way now, after closing access with OpenMAX IL implementations. I have used FFmpeg 0.10 (and tried 0.9/0.9.1..) for this issue, compiled it with NDK7 (and also tried NDK6b with the same result) :

    ffmpeg version 0.10 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Jan 28 2012 14:42:37 with gcc 4.4.3
  
    configuration: --target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm --cpu=armv7-a --sysroot=/home/grid/Android/Android_NDK/platforms/android-9/arch-arm --disable-avdevice --disable-decoder=h264 --disable-decoder=h264_vdpau --enable-libstagefright-h264 --prefix=build/stagefright/armeabi-v7a --extra-cflags='-Iandroid-source/frameworks/base/include -Iandroid-source/system/core/include -Iandroid-source/frameworks/base/media/libstagefright -Iandroid-source/frameworks/base/include/media/stagefright/openmax -I/home/grid/Android/Android_NDK/sources/cxx-stl/system/include -march=armv7-a -mfloat-abi=softfp -mfpu=neon' --extra-ldflags='-Wl,--fix-cortex-a8 -Landroid-libs -Wl,-rpath-link,android-libs' --extra-cxxflags='-Wno-multichar -fno-exceptions -fno-rtti'
  
    libavutil      51. 34.101 / 51. 34.101
  
    libavcodec     53. 60.100 / 53. 60.100
  
    libavformat    53. 31.100 / 53. 31.100
  
    libavfilter     2. 60.100 /  2. 60.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0.  6.100 /  0.  6.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

  Hardware : Beagleboard-Xm + TI Android 2.3 (official)

  So, entering next command give me error with 480p :
  ffmpeg -i /sdcard/Video/480p.mp4

  Stopped (signal) ffmpeg -i /sdcard/Video/480p.mp4

  Full Android "answer" from ADB Logcat :
  http://pastebin.com/76JLgtXX

  Android-developers, does anybody know what this error means and how to deal with it ?
  I tried to make DSP window bigger, but with no luck.
  Commands like "stagefright /sdcard/Video/480p.mp4" works fine.

  P.S. Additionally I found that on some bigger files (720p) Android answers next :

  [libstagefright_h264 @ 0xd479b0] Decode failed : 80000000