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• Failing to push mpeg dash segment to webdav server using method PUT

  18 avril 2020, par Safwan Sada

  I am trying to push mpeg dash segments to webdav server.

  



  Here is the command :

  



  ffmpeg -loglevel verbose -re -i /home/SAFWAN/URI.mp4 -codec copy -sc_threshold 0 -b_strategy 0 -use_timeline 0 -use_template 1 -window_size 10 -init_seg_name init-$RepresentationID$.mp4 -strict -2 -f dash -segment_list_flags +live -min_seg_duration 2000000 -method PUT http://192.168.22.112/webdav/SAFWAN5/manifest.mpd

  



  But I am able to push hls segments using sample ffmpeg command :
ffmpeg -loglevel verbose -re -i /home/SAFWAN/URI.mp4 -codec copy -method PUT -f hls http://192.168.22.112/webdav/SAFWAN5/master.m3u8

  



  Here is the apache2 access log :
183.82.0.170 - - [18/Apr/2020:10:32:28 -0400] "POST /webdav/SAFWAN5/manifest.mpd HTTP/1.1" 200 292 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:38 -0400] "POST /webdav/SAFWAN5/chunk-stream0-00004.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:38 -0400] "POST /webdav/SAFWAN5/chunk-stream1-00004.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:39 -0400] "POST /webdav/SAFWAN5/manifest.mpd HTTP/1.1" 200 292 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:48 -0400] "POST /webdav/SAFWAN5/chunk-stream0-00005.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:48 -0400] "POST /webdav/SAFWAN5/chunk-stream1-00005.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:49 -0400] "POST /webdav/SAFWAN5/manifest.mpd HTTP/1.1" 200 292 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:53 -0400] "POST /webdav/SAFWAN5/chunk-stream0-00006.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:53 -0400] "POST /webdav/SAFWAN5/chunk-stream1-00006.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:53 -0400] "POST /webdav/SAFWAN5/manifest.mpd HTTP/1.1" 200 292 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:57 -0400] "POST /webdav/SAFWAN5/chunk-stream0-00007.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:57 -0400] "POST /webdav/SAFWAN5/chunk-stream1-00007.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:32:57 -0400] "POST /webdav/SAFWAN5/manifest.mpd HTTP/1.1" 200 292 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:33:00 -0400] "POST /webdav/SAFWAN5/chunk-stream0-00008.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:33:00 -0400] "POST /webdav/SAFWAN5/chunk-stream1-00008.m4s HTTP/1.1" 404 498 "-" "Lavf/57.83.100"
183.82.0.170 - - [18/Apr/2020:10:33:01 -0400] "POST /webdav/SAFWAN5/manifest.mpd HTTP/1.1" 200 292 "-" "Lavf/57.83.100"

  



  Please let me know why the dash segments is failing to push to webdav server ?

  


• ffmpeg Output file #0 does not contain any stream when trying to access 1 of 2 audio streams

  7 juillet 2019, par nulltorpedo

  ffmpeg -i input.mkv  -map 0:2 -c copy -strict -2  audio.mkv

  Hi I have the above command. The output shows that there are 2 audio streams. I want to copy just the ac3 audio (actually I want to convert it but even this copy does not work). I have truncated the output print where there is metadata

  NEW updated sample with full log which results in same message

  ffmpeg -i input.mka -map 0:0 -c:a libfdk_aac   aac_out.m4a
  
  ffmpeg version 2.7.1 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.3 (crosstool-NG 1.20.0) 20150311 (prerelease)
  
    configuration: --prefix=/usr --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-shared --disable-static --enable-version3 --enable-nonfree --enable-libfaac --enable-encoders --enable-pthreads --disable-bzlib --disable-protocol=rtp --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffserver --disable-ffplay --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-vaapi --disable-decoder=amrnb --disable-decoder=ac3 --disable-decoder=ac3_fixed --disable-encoder=zmbv --disable-encoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=dca --disable-decoder=eac3 --disable-decoder=truehd --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-ccache-gcc --enable-yasm --enable-libx264 --enable-encoder=libx264
  
    libavutil      54. 27.100 / 54. 27.100
  
    libavcodec     56. 41.100 / 56. 41.100
  
    libavformat    56. 36.100 / 56. 36.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 16.101 /  5. 16.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.100 /  1.  2.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, matroska,webm, from '/volume1/..../input.mka':
  
    Metadata:
  
      encoder         : libebml v1.3.9 + libmatroska v1.5.2
  
      creation_time   : 2019-07-07 06:19:20
  
    Duration: 02:29:21.98, start: 0.000000, bitrate: 640 kb/s
  
      Stream #0:0(eng): Audio: ac3, 48000 Hz, 5.1(side), 640 kb/s
  
      Metadata:
  
        BPS-eng         : 640000
  
        DURATION-eng    : 02:29:21.984000480
  
        NUMBER_OF_FRAMES-eng: 280062
  
        NUMBER_OF_BYTES-eng: 716958720
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v35.0.0 ('All The Love In The World') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2019-07-07 06:19:20
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
  Output #0, ipod, to 'aac_out.m4a':
  
    Metadata:
  
      encoder         : libebml v1.3.9 + libmatroska v1.5.2
  
  Output file #0 does not contain any stream

• Statically linking FFmpeg libraries into native C++ node addon

  11 juin 2019, par Suhail Doshi

  I trying to run a node addon that links to libraries without having to include their dynamic .dll library :

  When I try to include their static archive : .dll.a extension on Windows, the node addon returns an error :

  $ node index.js --client 
  
  internal/modules/cjs/loader.js:840 
  
    return process.dlopen(module, path.toNamespacedPath(filename));
  
                   ^
  
  
  
  Error: The specified procedure could not be found.

  This generally means that it was expecting to load some other function from a library but failed to find it. If there’s a way to debug this error message more specifically, I’d also love to know how !

  I’ve tried re-ordering the libraries, using different extensions, etc.

  I originally used just the .lib extension instead of the .dll.a extensions and the program works fine if I include the .dll’s.

  The code works fine if I use .lib files and place their corresponding .dlls in the same directory as the application I am executing.

  I’ve used these resources :

  • .lib’s are stubs for compile time & don’t solve the problem : Program statically linked to a library but still needs dll to run
  • Literature about .dll.a files : MinGW creating dll.a files ? What type of library files are those ?
  • Statically link ffmpeg : https://fritzone.wordpress.com/2010/05/11/link-with-static-ffmpeg/ but it ffmpeg-dev doesn’t have .a files, it has .dll.a files and I am already trying that route.

  I am using N-API and here’s what I am doing in binding.gyp :

  'libraries': [
  
              "ws2_32.lib",
  
  
  
              "C:\\Users\\$(username)\\Desktop\\workspace\\ffmpeg-win64-dev\\lib\\libavcodec.dll.a",
  
              "C:\\Users\\$(username)\\Desktop\\workspace\\ffmpeg-win64-dev\\lib\\libavutil.dll.a",
  
              "C:\\Users\\$(username)\\Desktop\\workspace\\ffmpeg-win64-dev\\lib\\libswresample.dll.a",

  I am expecting my application (node index.js --client) to run correctly without the need the .dlls I’ve had to include in the past.

  EDIT

  It’s possible this problem is as simple as : How do you statically link these FFmpeg libraries on Windows vs having anything to do with node specifically.