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• Transcoding a video from GoToMeeting WMV to MP4 using FFMPEG on Windows locks up dos window [migrated]

  22 août 2011, par Ryan

  I've been tasked with converting some pre-recorded GoToMeeting videos from wmv to mp4 format. I've got the GoToMeeting transcoder app available from Citrix (g2mtranscoder.exe) that takes the source wmv and makes it so that ffmpeg can work with the wmv. The problem I have is when I then try and take that wmv and transcode it to mp4.

  I'm using the latest pre-compiled static version of ffmpeg for Windows from here http://ffmpeg.zeranoe.com/builds/

  Here is the command line I'm using to begin the conversion :

  "C:\ffmpeg\ffmpeg.exe" -i "999_1366_768_g2m_transcoded.wmv" -f "mp4" -b "1000k" -r "30" -ab "128k" -ar "22050" -s "1366x768" -strict "experimental" -y "999.mp4"

  Here is FFMPEG's output. The last line is where the dos window seems to stop executing/locks up (when I say lock up I mean just the dos window is locked up, not the entire machine) :

  ffmpeg version N-31932-g41bf67d, Copyright (c) 2000-2011 the FFmpeg developers built on Aug 16 2011 18:54:12 with gcc 4.6.1
  
  configuration: --enable-gpl --enable-version3 --enable-memalign-hack --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil    51. 12. 0 / 51. 12. 0
  
    libavcodec   53. 10. 0 / 53. 10. 0
  
    libavformat  53.  7. 0 / 53.  7. 0
  
    libavdevice  53.  3. 0 / 53.  3. 0
  
    libavfilter   2. 31. 1 /  2. 31. 1
  
    libswscale    2.  0. 0 /  2.  0. 0
  
    libpostproc  51.  2. 0 / 51.  2. 0
  
  [asf @ 01BBB600] max_analyze_duration 5000000 reached at 5194000
  
  
  
  Seems stream 1 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 59.92 (719/12)
  
  Input #0, asf, from 'D:\Inetpub\g2m\Transcoding\999_1366_768_g2m_transcoded.wmv':
  
    Metadata:
  
      WMFSDKVersion   : 10.00.00.4007
  
      WMFSDKNeeded    : 0.0.0.0000
  
      IsVBR           : 1
  
      VBR Peak        : 4403
  
      Buffer Average  : 1470
  
      WM/ToolVersion  : 4.8 Build 723
  
      WM/ToolName     : GoToMeeting
  
      BitRateFrom the writer: 1553
  
      Audio samples   : 6221
  
      Video samples   : 3455
  
      recording time  : Mon, 22 Aug 2011 11:48:42 Eastern Daylight Time
  
    Duration: 00:38:30.71, start: 0.000000, bitrate: 160 kb/s
  
      Stream #0.0: Audio: wmav2, 44100 Hz, 1 channels, s16, 48 kb/s
  
      Stream #0.1: Video: wmv3 (Main), yuv420p, 1366x768, 2154 kb/s, 59.92 tbr, 1k tbn, 1k tbc
  
  [buffer @ 01BBC120] w:1366 h:768 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
  
  Output #0, mp4, to '\\nas4\FMS_APPLICATIONS\SVC\sk12\webinars\999.mp4':
  
    Metadata:
  
      WMFSDKVersion   : 10.00.00.4007
  
      WMFSDKNeeded    : 0.0.0.0000
  
      IsVBR           : 1
  
      VBR Peak        : 4403
  
      Buffer Average  : 1470
  
      WM/ToolVersion  : 4.8 Build 723
  
      WM/ToolName     : GoToMeeting
  
      BitRateFrom the writer: 1553
  
      Audio samples   : 6221
  
      Video samples   : 3455
  
      recording time  : Mon, 22 Aug 2011 11:48:42 Eastern Daylight Time
  
      encoder         : Lavf53.7.0
  
      Stream #0.0: Video: mpeg4, yuv420p, 1366x768, q=2-31, 1000 kb/s, 30 tbn, 30 tbc
  
      Stream #0.1: Audio: aac, 22050 Hz, 1 channels, s16, 128 kb/s
  
  Stream mapping:
  
    Stream #0.1 -> #0.0
  
    Stream #0.0 -> #0.1
  
  Press [q] to stop, [?] for help
  
  frame=  149 fps= 63 q=23.5 size=    1103kB time=00:00:04.96 bitrate=1818.6kbits/s dup=144 drop=0

  Does anyone have any idea why it's locking up the dos window and essentially failing to convert the file to mp4 ? I had a friend test it on a linux box and he was able to convert the video just fine.

  Thanks

• Andriod streaming screen [closed]

  9 avril 2013, par blganesh

  Im able to share screen via ffmpeg
  ./ffmpeg -f fbdev -r 24 -i /dev/graphics/fb0 http://localhost:8090/feed1.ffm

  But the output live stream is very slow.
  Following is the conf file which I'm using.

  `Port 8090
  
  RTSPPort 7654
  
  BindAddress 0.0.0.0
  
  RTSPBindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 1000
  
  CustomLog -
  
  NoDaemon
  
  <feed>
  
  File /data/live1.ffm
  
  FileMaxSize 40M
  
  NoAudio
  
  ACL allow 127.0.0.1
  
  </feed>
  
  <stream>
  
  Feed live1.ffm
  
  Format mpeg2video
  
  NoAudio
  
  VideoBitRate 1024
  
  VideoFrameRate 1
  
  VideoBufferSize 10000
  
  VideoSize 480x800
  
  VideoQMin 1
  
  VideoQMax 15
  
  </stream>`

  Kindly let me know how should I change my conf file to get a fast video output.

• No audio encoded with ffmpeg using webm/libvorbis

  15 mars 2013, par Craig Lillard

  Having issues getting audio to encode to webm. Tried many different methods and it just ain't happenin. The commands are printed below before each pass.

  I have tried moving the audio commands around, trying different bitrates, different audio commands and have tried it on a couple of different files as well that both have audio.

  Encoding these files to MP4 using x264 causes no problems and works just fine and the audio plays, so it appears to be an issue just with webm. As you can see below, it is a 2-pass encode.

  Thanks for any help you can provide !

  Craig

  Webm LG PASS 1...........................
  
  
  
  
  
  
  
  
  
      webm_pass1: /usr/bin/ffmpeg -i /home/thedirectory/video613268.mov  -codec:v libvpx -quality good -vf 'scale=640:360 [scaled];movie=/home/thedirectory/watermarks/w640X360.png [logo];[scaled][logo] overlay' -cpu-used 0 -b:v 500k -aspect 16:9 -qmin 10 -qmax 42 -maxrate:v 500k -bufsize:v 1000k -r:v 25/1 -force_fps -threads 0 -an -acodec libvorbis -ac 2 -ab 96k -ar 44100 -pass 1 -f webm -y /dev/null
  
  
  
  
  
  
  
      ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
  
        built on Mar 11 2013 14:48:26 with gcc 4.6.2 20111027 (Red Hat 4.6.2-2)
  
        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-libfaac --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab --enable-libvorbis --enable-libvpx
  
        libavutil      51. 35.100 / 51. 35.100
  
        libavcodec     53. 61.100 / 53. 61.100
  
        libavformat    53. 32.100 / 53. 32.100
  
        libavdevice    53.  4.100 / 53.  4.100
  
        libavfilter     2. 61.100 /  2. 61.100
  
        libswscale      2.  1.100 /  2.  1.100
  
        libswresample   0.  6.100 /  0.  6.100
  
        libpostproc    52.  0.100 / 52.  0.100
  
      Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/thedirectory/video613268.mov':
  
        Metadata:
  
          major_brand     : qt  
  
          minor_version   : 537199360
  
          compatible_brands: qt  
  
          creation_time   : 2013-02-23 20:04:32
  
        Duration: 00:00:21.02, start: 0.000000, bitrate: 114326 kb/s
  
          Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 1920x1080 [SAR 72:72 DAR 16:9], 112786 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc
  
          Metadata:
  
            creation_time   : 2013-02-23 20:04:32
  
            handler_name    : ?Gestionnaire d?alias Apple
  
          Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, 2 channels, s16, 1536 kb/s
  
          Metadata:
  
            creation_time   : 2013-02-23 20:04:32
  
            handler_name    : ?Gestionnaire d?alias Apple
  
      Incompatible pixel format 'yuvj422p' for codec 'libvpx', auto-selecting format 'yuv420p'
  
      [buffer @ 0x1f675a0] w:1920 h:1080 pixfmt:yuvj422p tb:1/1000000 sar:1/1 sws_param:
  
      [movie @ 0x1f799c0] seek_point:0 format_name:(null) file_name:/home/thedirectory/watermarks/w640X360.png stream_index:0
  
      [overlay @ 0x1f7c2c0] auto-inserting filter 'auto-inserted scale 0' between the filter 'Parsed_movie_1' and the filter 'Parsed_overlay_2'
  
      [scale @ 0x1f78d40] w:1920 h:1080 fmt:yuvj422p -> w:640 h:360 fmt:yuv420p flags:0x4
  
      [scale @ 0x1f7cde0] w:640 h:360 fmt:rgba -> w:640 h:360 fmt:yuva420p flags:0x4
  
      [overlay @ 0x1f7c2c0] main w:640 h:360 fmt:yuv420p overlay x:0 y:0 w:640 h:360 fmt:yuva420p
  
      [overlay @ 0x1f7c2c0] main_tb:1/1000000 overlay_tb:1/25 -> tb:1/1000000 exact:1
  
      [libvpx @ 0x1f77ce0] v1.0.0
  
      Output #0, webm, to '/dev/null':
  
        Metadata:
  
          major_brand     : qt  
  
          minor_version   : 537199360
  
          compatible_brands: qt  
  
          creation_time   : 2013-02-23 20:04:32
  
          encoder         : Lavf53.32.100
  
          Stream #0:0(eng): Video: vp8, yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=10-42, pass 1, 500 kb/s, 1k tbn, 25 tbc
  
          Metadata:
  
            creation_time   : 2013-02-23 20:04:32
  
            handler_name    : ?Gestionnaire d?alias Apple
  
      Stream mapping:
  
        Stream #0:0 -> #0:0 (mjpeg -> libvpx)
  
      Press [q] to stop, [?] for help
  
      frame=  527 fps= 21 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=0 drop=103    
  
      video:0kB audio:0kB global headers:0kB muxing overhead -nan%
  
      Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
  
      Webm LG PASS 2.......................
  
  
  
  
  
  
  
  
  
      webm_pass2: /usr/bin/ffmpeg -i /home/thedirectory/video613268.mov -codec:v libvpx -quality good -vf 'scale=640:360 [scaled];movie=/home/thedirectory/watermarks/w640X360.png [logo];[scaled][logo] overlay' -cpu-used 0 -b:v 500k  -aspect 16:9  -qmin 10 -qmax 42 -maxrate:v 500k -bufsize:v 1000k -r:v 24/1 -force_fps -threads 0 -an -acodec libvorbis -ac 2 -ab 96k -ar 44100 -pass 2 -f webm -y /media/amazons3/webmlg/video613268.mov.webm
  
  
  
  
  
  
  
      ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
  
        built on Mar 11 2013 14:48:26 with gcc 4.6.2 20111027 (Red Hat 4.6.2-2)
  
        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-libfaac --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab --enable-libvorbis --enable-libvpx
  
        libavutil      51. 35.100 / 51. 35.100
  
        libavcodec     53. 61.100 / 53. 61.100
  
        libavformat    53. 32.100 / 53. 32.100
  
        libavdevice    53.  4.100 / 53.  4.100
  
        libavfilter     2. 61.100 /  2. 61.100
  
        libswscale      2.  1.100 /  2.  1.100
  
        libswresample   0.  6.100 /  0.  6.100
  
        libpostproc    52.  0.100 / 52.  0.100
  
      Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/thedirectory/video613268.mov':
  
        Metadata:
  
          major_brand     : qt  
  
          minor_version   : 537199360
  
          compatible_brands: qt  
  
          creation_time   : 2013-02-23 20:04:32
  
        Duration: 00:00:21.02, start: 0.000000, bitrate: 114326 kb/s
  
          Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 1920x1080 [SAR 72:72 DAR 16:9], 112786 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc
  
          Metadata:
  
            creation_time   : 2013-02-23 20:04:32
  
            handler_name    : ?Gestionnaire d?alias Apple
  
          Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, 2 channels, s16, 1536 kb/s
  
          Metadata:
  
            creation_time   : 2013-02-23 20:04:32
  
            handler_name    : ?Gestionnaire d?alias Apple
  
      Incompatible pixel format 'yuvj422p' for codec 'libvpx', auto-selecting format 'yuv420p'
  
      [buffer @ 0x1f2a5a0] w:1920 h:1080 pixfmt:yuvj422p tb:1/1000000 sar:1/1 sws_param:
  
      [movie @ 0x1f3bec0] seek_point:0 format_name:(null) file_name:/home/thedirectory/watermarks/w640X360.png stream_index:0
  
      [overlay @ 0x1f3f2c0] auto-inserting filter 'auto-inserted scale 0' between the filter 'Parsed_movie_1' and the filter 'Parsed_overlay_2'
  
      [scale @ 0x1f3c8a0] w:1920 h:1080 fmt:yuvj422p -> w:640 h:360 fmt:yuv420p flags:0x4
  
      [scale @ 0x1f3fde0] w:640 h:360 fmt:rgba -> w:640 h:360 fmt:yuva420p flags:0x4
  
      [overlay @ 0x1f3f2c0] main w:640 h:360 fmt:yuv420p overlay x:0 y:0 w:640 h:360 fmt:yuva420p
  
      [overlay @ 0x1f3f2c0] main_tb:1/1000000 overlay_tb:1/25 -> tb:1/1000000 exact:1
  
      [libvpx @ 0x1f3ace0] v1.0.0
  
      Output #0, webm, to '/media/amazons3/webmlg/video613268.mov.webm':
  
        Metadata:
  
          major_brand     : qt  
  
          minor_version   : 537199360
  
          compatible_brands: qt  
  
          creation_time   : 2013-02-23 20:04:32
  
          encoder         : Lavf53.32.100
  
          Stream #0:0(eng): Video: vp8, yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=10-42, pass 2, 500 kb/s, 1k tbn, 24 tbc
  
          Metadata:
  
            creation_time   : 2013-02-23 20:04:32
  
            handler_name    : ?Gestionnaire d?alias Apple
  
      Stream mapping:
  
        Stream #0:0 -> #0:0 (mjpeg -> libvpx)
  
      Press [q] to stop, [?] for help
  
      frame=  506 fps=  7 q=0.0 Lsize=    1610kB time=00:00:21.08 bitrate= 625.8kbits/s dup=0 drop=124    
  
      video:1389kB audio:0kB global headers:0kB muxing overhead 15.952140%