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• Streaming Desktop using FFMPEG in windows [migrated]

  23 décembre 2011, par sonu thomas

  How to stream Desktop using FFMPEG in windows??

  I have tried ffmpeg -list_devices true -f dshow -i dummy

  and after that this to stream

  ffmpeg -f dshow  -i video="Chicony USB 2.0 Camera"  -r 30 -vcodec mpeg4 -q 12 -f mpegts        udp://192.168.2.7:6666?pkt_size=188?buffer_size=65535
  

  Using this i got to stream the Camera.

  What command i have to type to stream the Desktop in windows?

• FFMpeg compilation error "Undefined symbols for architecture x86_64"

  23 décembre 2011, par Saptarshi Biswas

  I am trying to compile ffmpeg (0.9.0.git) with x264(0.120) like this

  ./configure --enable-gpl --enable-libmp3lame \
     --enable-static --disable-shared --enable-libx264 \
     --enable-pthreads --disable-doc --enable-avfilter \
     --disable-ffplay --disable-ffserver --disable-ffprobe
  make
  

  and I encounter the following error:

  LD  ffmpeg_g
  Undefined symbols for architecture x86_64:
    "_MM_FIX_0_707106781", referenced from:
        _filter in libavfilter.a(vf_fspp.o)
    "_MM_FIX_0_541196100", referenced from:
        _filter in libavfilter.a(vf_fspp.o)
  ld: symbol(s) not found for architecture x86_64
  collect2: ld returned 1 exit status
  make: *** [ffmpeg_g] Error 1
  

  Any idea what the fix might be?

  Update: Might be unrelated but this discussion https://trac.macports.org/ticket/30093 says the issue was ffmpeg picking up llvm instead of gcc-4.2 but then this had already fixed in 0.7.4

• FFmpeg quality in PHP

  22 décembre 2011, par Psalms twnTysVn

  how to set an option using php code with regards of selecting the quality of the video/audio file. They can select either low or high quality then convert it to the selected quality type. Is there any code for that?

• FFmpeg quality option in PHP

  22 décembre 2011, par Psalms twnTysVn

  how to set an option using php code with regards of selecting the quality of the video/audio file. They can select either low or high quality then convert it to the selected quality type. Is there any code for that?

• ffmpeg for medium quality [migrated]

  22 décembre 2011, par yuri04

  I tried using the -sameq, and it works and got a good quality for the video, but I noticed the file size had increased greater than the original video.

  So how can I adjust for the medium quality? I mean much better than the normal ffmpeg -i input output for the mid quality.