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• 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 c# asp.net help on ProcessStartInfo

  3 mai 2012, par Arun Kumar

  I wrote the code to convert the file in c#asp.net using ffmpeg. While executing it shows error as "The filename, directory name, or volume label syntax is incorrect" but my paths are correct. So what is the solution for this ?

  ProcessStartInfo info = new ProcessStartInfo("e:\ffmpeg\bin\ffmpeg.exe", "-i cars1.flv -same_quant intermediate1.mpg");
  
  
  
  process.Start();

  I tried another way as shown below. But that is also won't works.

  ProcessStartInfo info = new ProcessStartInfo("ffmpeg.exe", "-i cars1.flv -same_quant intermediate1.mpg");

  Please help me with sample code for converting one video file format to another using ffmpeg in c# asp.net. Thanks in advance.

• getting very bad image after encoding

  20 avril 2012, par user1310596

  I am encoding images using avcodec_encode_video method and displaying them on subscriber demo of the Red5 media server.

  The problem i am facing is that all the images which are being displayed are totally distorted and nothing is clearly visible. I think something might be wrong with the pix_fmt set in avcodec context.
  Moreover image size is also quite large as 64000 bytes after encoding which I think is little weird
  Please give me solution of this problem. Any help is appreciated.