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• Build error while compiling ffmpeg on cygwin with libx264

  24 janvier 2011, par Rakesh Singh

  configured ffmpeg(0.6.1) with below command (with x264-snapshot-20101228-2245 snapshot) with Gcc version : gcc (GCC) 4.3.4 20090804 (release)

  ./configure --enable-shared --disable-static --enable-pthreads --enable-libx264 
  --enable-gpl --disable-doc --enable-memalign-hack 
  --extra-ldflags="-L/usr/local/lib"
  

  and after that, "make" command is giving below error.

  CC      libavdevice/alldevices.o
  CC      libavdevice/avdevice.o
  CC      libavdevice/oss_audio.o
  CC      libavdevice/vfwcap.o
  CC      libavformat/4xm.o
  In file included from /usr/include/endian.h:42,
                   from /usr/include/cygwin/types.h:22,
                   from /usr/include/sys/types.h:440,
                   from /usr/include/stdio.h:46,
                   from ./libavutil/common.h:34,
                   from ./libavutil/intreadwrite.h:25,
                   from libavformat/4xm.c:30:
  /usr/include/byteswap.h:19: error: redefinition of `bswap_16'
  ./libavutil/x86/bswap.h:33: error: previous definition of `bswap_16' was here
  /usr/include/byteswap.h:25: error: redefinition of `bswap_32'
  ./libavutil/x86/bswap.h:40: error: previous definition of `bswap_32' was here
  /usr/include/byteswap.h:31: error: redefinition of `bswap_64'
  ./libavutil/bswap.h:70: error: previous definition of `bswap_64' was here
  make: *** [libavformat/4xm.o] Error 1
  bash: sudo: command not found
  

  I checked lot of links showing same error but no solution has been provided. Anybody has any clue who already build ffmpeg on cygwin?

• How can I run this command in a shell script

  21 janvier 2011, par Sascha

  This is my shell script but it gives errors:

  #!/bin/sh
  
  while getopts "i:o:" flag
  do
     case $flag in
     i) file_input=$OPTARG
     ;;
     o) file_output=$OPTARG
     ;;
     esac
  done
  
  mplayer -nosound -benchmark -vo yuv4mpeg:file=>(x264 --demuxer y4m \
                --crf 20 --threads auto --output $file_output - ) $file_input
  

  The error message is:

  Can't get memory or file handle to write ">(x264 --demuxer y4m --crf 20 --threads auto --output video.264 - )"!FATAL: Cannot initialize video driver.

  When I run this cmd on putty:

  mplayer -nosound -benchmark -vo yuv4mpeg:file=>(x264 --demuxer y4m \
                --crf 20 --threads auto --output video.264 - ) video.wmv
  

  it works perfectly..

  What am I doing wrong?