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• Building ffmpeg on Windows from Chromium - make : *** No rule to make target 'libavcodec\avcodec-57.dll'. Stop

  14 septembre 2016, par Catalin Fratila

  I am trying to compile ffmpeg on a Windows machine, using mingw64 and msys2.

  But when I run : "build_ffmpeg.py win ia32" (same result with x64), I get :

  /c/libchromiumcontent/src/third_party/ffmpeg/chromium/scripts
  
  $ ./build_ffmpeg.py win ia32
  
  install prefix            /usr/local
  
  source path               /c/libchromiumcontent/src/third_party/ffmpeg
  
  C compiler                gcc
  
  C library                 mingw64
  
  ARCH                      x86 (generic)
  
  big-endian                no
  
  runtime cpu detection     yes
  
  yasm                      yes
  
  MMX enabled               yes
  
  MMXEXT enabled            yes
  
  3DNow! enabled            yes
  
  3DNow! extended enabled   yes
  
  SSE enabled               yes
  
  SSSE3 enabled             yes
  
  AESNI enabled             yes
  
  AVX enabled               yes
  
  XOP enabled               yes
  
  FMA3 enabled              yes
  
  FMA4 enabled              yes
  
  i686 features enabled     yes
  
  CMOV is fast              yes
  
  EBX available             yes
  
  EBP available             yes
  
  debug symbols             yes
  
  strip symbols             yes
  
  optimize for size         no
  
  optimizations             yes
  
  static                    yes
  
  shared                    no
  
  postprocessing support    no
  
  new filter support        no
  
  network support           no
  
  threading support         w32threads
  
  safe bitstream reader     yes
  
  SDL support               no
  
  opencl enabled            no
  
  texi2html enabled         no
  
  perl enabled              no
  
  pod2man enabled           no
  
  makeinfo enabled          no
  
  makeinfo supports HTML    no
  
  
  
  Enabled programs:
  
  
  
  External libraries:
  
  
  
  Enabled decoders:
  
  pcm_alaw                  pcm_f32le                 pcm_mulaw                 pcm_s16be                 pcm_s16le                 pcm_s24be                 pcm_s24le                 pcm_s32le                 pcm_u8                    vorbis
  
  
  
  Enabled encoders:
  
  
  
  Enabled hwaccels:
  
  
  
  Enabled parsers:
  
  opus                      vorbis
  
  
  
  Enabled demuxers:
  
  matroska                  ogg                       wav
  
  
  
  Enabled muxers:
  
  
  
  Enabled protocols:
  
  
  
  Enabled filters:
  
  
  
  Enabled bsfs:
  
  
  
  Enabled indevs:
  
  
  
  Enabled outdevs:
  
  
  
  License: LGPL version 2.1 or later
  
  Creating config.mak, config.h, and doc/config.texi...
  
  make: *** No rule to make target 'libavcodec\avcodec-57.dll'.  Stop.
  
  System information:
  
  Host OS       : win
  
  Target OS     : win
  
  Host arch     : x64
  
  Target arch   : ia32
  
  Parallel jobs : 4
  
  
  
  Chromium configure/build:
  
  Running ['sh.exe', 'C:\\libchromiumcontent\\src\\third_party\\ffmpeg\\configure', '--disable-everything', '--disable-all', '--disable-doc', '--disable-htmlpages', '--disable-manpages', '--disable-podpages', '--disable-txtpages', '--disable-static', '--enable-avcodec', '--enable-avformat', '--enable-avutil', '--enable-fft', '--enable-rdft', '--enable-static', '--disable-bzlib', '--disable-error-resilience', '--disable-iconv', '--disable-lzo', '--disable-network', '--disable-schannel', '--disable-sdl', '--disable-symver', '--disable-xlib', '--disable-zlib', '--disable-securetransport', '--disable-d3d11va', '--disable-dxva2', '--disable-vaapi', '--disable-vda', '--disable-vdpau', '--disable-videotoolbox', '--enable-decoder=vorbis', '--enable-decoder=pcm_u8,pcm_s16le,pcm_s24le,pcm_s32le,pcm_f32le', '--enable-decoder=pcm_s16be,pcm_s24be,pcm_mulaw,pcm_alaw', '--enable-demuxer=ogg,matroska,wav', '--enable-parser=opus,vorbis', '--optflags="-O2"', '--enable-decoder=theora,vp8', '--enable-parser=vp3,vp8', '--toolchain=msvc', '--cpu=opteron', '--enable-yasm', '--extra-cflags=-IC:\\libchromiumcontent\\src\\third_party\\ffmpeg\\chromium/include/win', '--target-os=mingw32', '--enable-memalign-hack', '--cc=gcc-sjlj']
  
  Running ['make', '-j4', 'libavcodec\\avcodec-57.dll', 'libavformat\\avformat-57.dll', 'libavutil\\avutil-55.dll']
  
  Traceback (most recent call last):
  
    File "./build_ffmpeg.py", line 631, in <module>
  
      sys.exit(main(sys.argv[1:]))
  
    File "./build_ffmpeg.py", line 596, in main
  
      configure_args)
  
    File "./build_ffmpeg.py", line 588, in do_build_ffmpeg
  
      options.config_only, branding, configure_flags)
  
    File "./build_ffmpeg.py", line 217, in BuildFFmpeg
  
      ['make', '-j%d' % parallel_jobs] + libraries, cwd=config_dir)
  
    File "./build_ffmpeg.py", line 92, in PrintAndCheckCall
  
      subprocess.check_call(argv, *args, **kwargs)
  
    File "C:\Python27\lib\subprocess.py", line 541, in check_call
  
      raise CalledProcessError(retcode, cmd)
  
  subprocess.CalledProcessError: Command '['make', '-j4', 'libavcodec\\avcodec-57.dll', 'libavformat\\avformat-57.dll', 'libavutil\\avutil-55.dll']' returned non-zero exit status 2
  
  </module>

  Has anyone seen this issue before ? Have all the pre-requisites from here : https://trac.ffmpeg.org/wiki/CompilationGuide/MinGW

  Thanks.

• Waiting between FFMPEG scripts when creating .hdr/.chk and .mpd files on NGINX server using RTMP module

  17 avril 2020, par Mathew Knight

  Wonder if anyone might be able to suggest a solution to and issue i'm having.

  



  I'm running some FFMPEG scripts inside a RTMP server block on an NGINX server running on Ubuntu 18.04.

  



  Basically i'm ingesting the RTMP stream to the server then using FFMPEG to Demux into separate audio and video header and chunk files, then in separate scripts i'm creating two separate manifests for both the audio and video.

  



  The player i have (a development ambisonic, 360 video player) is having problems reading the stream correctly and i believe this is due to the FFMPEG process for the manifests not waiting 2 seconds before running.

  



  Is there a way to program a wait in between the scripts to facilitate this ?

  



  furthermore, is there a way to make the manifest scripts only run once then quit ?

  



  heres my current NGINX .conf

  



  user root;
#user www-data;
worker_processes 1;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
events {
    worker_connections 768;
    # multi_accept on;
}
http {
    ##
    # Basic Settings
    ##
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;
    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    ##
    # SSL Settings
    ##
    #ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    #ssl_prefer_server_ciphers on;
    ##
    # Logging Settings
    ##
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;
    ##
    # Gzip Settings
    ##
    ##
    # Virtual Host Configs
    ##
    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}
rtmp {
        server {
            listen 1935;
            chunk_size 4096;

            application live {
            live on;
            record off;
            interleave off;
            wait_key on;
            meta on;
            wait_video off;
            idle_streams off;
            sync 300ms;
            session_relay on;
            #allow publish 127.0.0.1;
            #allow publish 192.168.2.0/24;
            allow publish all;
            #deny publish all;
            allow play all;    
        #RX stream to FFMPEG, demux audio and video, write .hdr files, start chunking DASH segments .chk
         exec_push sudo ffmpeg -y -re -i 'rtmp://localhost:1935/live/stream' -map 0:1 -pix_fmt yuv420p -maxrate 750k -bufsize 3000k -c:v libvpx-vp9 -s 1920x1080 -keyint_min 60 -g 60 -speed 6 -tile-columns 4 -frame-parallel 1 -threads 8 -static-thresh 0 -max-intra-rate 300 -deadline realtime -lag-in-frames 0 -error-resilient 1 -b:v 6000k -f webm_chunk -header "/var/www/html/dash/video_360.hdr" -chunk_start_index 1 "/var/www/html/dash/video_360_%d.chk" -map 0:2 -c:a libopus -mapping_family 255 -b:a 1024k -vn -f webm_chunk -audio_chunk_duration 2000 -header "/var/www/html/dash/audio_171.hdr" -chunk_start_index 1 "/var/www/html/dash/audio_171_%d.chk" 2>>/var/log/nginx/ffmpegChunk.log;

        #Create video manifest
        exec_push sudo ffmpeg -probesize 500M -analyzeduration 100M -f webm_dash_manifest -live 1 -i "/var/www/html/dash/video_360.hdr" -map 0 -c copy -f webm_dash_manifest -live 1 -adaptation_sets "id=0,streams=0" -chunk_start_index 1 -chunk_duration_ms 2000 -minimum_update_period 7200 "/var/www/html/dash/video.mpd" 2>>/var/log/nginx/ffmpegManifestVideo.log;
        #Create audio manifest
        exec_push sudo ffmpeg -probesize 500M -analyzeduration 100M -f webm_dash_manifest -live 1 -i "/var/www/html/dash/audio_171.hdr" -map 0 -c libopus -mapping_family 255 -f webm_dash_manifest -live 1 -adaptation_sets "id=1,streams=0" -chunk_start_index 1 -chunk_duration_ms 2000 -minimum_update_period 7200 "/var/www/html/dash/audio_16ch.mpd" 2>>/var/log/nginx/ffmpegManifestAudio.log;

        ##
        # Record the incoming stream
        ##
        # Record audio and video together
        record all;
        record_path /home/mathewknight/Desktop/StreamRecord/Master;
        record_notify on;
        # Record audio seperately
        recorder audio {
            record audio;
            record_path /home/mathewknight/Desktop/StreamRecord/Audio;
            record_suffix -%d-%b-%y-%T.audio.flv;
            record_notify on;
            }
        # Record video seperately
        recorder video{
            record video;
            record_path /home/mathewknight/Desktop/StreamRecord/Video;
            record_suffix -%d-%b-%y-%T.video.flv;
            record_notify on;
            }

            }


        }

}



  


• FFMPEG Concat protocol Error : Found duplicated MOOV Atom. Skipped it

  11 septembre 2020, par user3541092

  I'm concatenating mp3 files into a single m4a.

  



  To save time, I'm doing the mp3 to m4a conversion first (multi-threaded) and then concatenating the output files (m4a) into a single m4a file.

  



  The concat works when I do the conversion (mp3 -> m4a) and cancat in one swoop. But it takes forever to run.

  



  Example :

  



  ffmpeg -i "concat:001.mp3|002.mp3|003.mp3" -codec:a aac -c copy output.m4a


  



  
If I take those same mp3 files and convert them to m4a in parallel and then concat, I can save myself a significant amount time.

  



  The problem is if I run the concat command on the converted m4a files

  



  Example cmd :

  



  ffmpeg -i "concat:001.m4a|002.m4a|003.m4a" -c copy output.m4a


  



  I getting the following error :

  



  


  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000052f680] Found duplicated MOOV
 Atom. Skipped it

  


  



  
UPDATE : Ouput when concatenating m4a files (two track example) :

  



  C:\_ffmpeg>ffmpeg -i "concat:001.m4a|002.m4a" -c copy output.m4a
ffmpeg version N-79630-g9ac154d Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enabl
e-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable
-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --ena
ble-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx
264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable
-lzma --enable-decklink --enable-zlib
  libavutil      55. 22.101 / 55. 22.101
  libavcodec     57. 38.100 / 57. 38.100
  libavformat    57. 34.103 / 57. 34.103
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 44.100 /  6. 44.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000048a9a0] Found duplicated MOOV Atom. Skipped
 it
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:001.m4a|002.m4a':
  Metadata:
    track           : 1
    major_brand     : M4A
    minor_version   : 512
    title           : 001 Moon Over Soho
    artist          : Ben Aaronovitch
    album_artist    : Narrated by Kobna Holdbrook-Smith
    composer        : Narrated by Kobna Holdbrook-Smith
    album           : Moon Over Soho
    date            : 2012
    encoder         : Lavf57.34.103
    genre           : Speech
    copyright       : Tantor Audio
    compatible_brands: isomiso2
  Duration: 00:44:03.83, start: 0.000000, bitrate: 251 kb/s
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, flt
p, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[ipod @ 000000000048bb20] Using AVStream.codec to pass codec parameters to muxer
s is deprecated, use AVStream.codecpar instead.
Output #0, ipod, to 'output.m4a':
  Metadata:
    track           : 1
    major_brand     : M4A
    minor_version   : 512
    title           : 001 Moon Over Soho
    artist          : Ben Aaronovitch
    album_artist    : Narrated by Kobna Holdbrook-Smith
    composer        : Narrated by Kobna Holdbrook-Smith
    album           : Moon Over Soho
    date            : 2012
    compatible_brands: isomiso2
    genre           : Speech
    copyright       : Tantor Audio
    encoder         : Lavf57.34.103
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, 128
 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
size=   41892kB time=00:44:03.80 bitrate= 129.8kbits/s speed=2.21e+003x
video:0kB audio:41445kB subtitle:0kB other streams:0kB global headers:0kB muxing
 overhead: 1.077122%

C:\_ffmpeg>pause
Press any key to continue . . .