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  • How to choosing audio stream

    5 septembre 2013, par user2696962

    I want to choose the first audio stream. but for some reason, it's not working. it's always choosing the last audio stream

    what i've tried

    ffmpeg -i test.avi -vf "movie=watermark_720.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" -map 0:0 -map 0:1 -y -ar 44100 -ac 1 -vcodec libx264 -b 555K -threads 0 test.2.flv

    ffmpeg -i test.avi

    ffmpeg -i test.avi 
    
ffmpeg version 1.2.3 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Sep  5 2013 03:04:34 with gcc 4.7 (Debian 4.7.1-2)
    
  configuration: --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3
    
  libavutil      52. 18.100 / 52. 18.100
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.104 / 54. 63.104
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 42.103 /  3. 42.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
Input #0, avi, from 'test.avi':
    
  Metadata:
    
    encoder         : VirtualDubMod 1.5.10.2 (build 2540/release)
    
  Duration: 01:37:21.64, start: 0.000000, bitrate: 2018 kb/s
    
    Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x404 [SAR 1:1 DAR 180:101], 29.97 tbr, 29.97 tbn, 29.97 tbc
    
    Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 160 kb/s
    
    Stream #0:2: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s

    test.2.flv comes out with Stream #0:2: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s

  • FFmpeg streaming to Akamai like FMLE does

    21 juin 2013, par xdev.developer

    I am trying to stream video from my webcam to AkamaiHD service using ffmpeg (like it is implemented in Flash Media Live Encoder)

        ffmpeg -f dshow -i video="Webcam C110" -s 640x360 -aspect 16:9 -profile:v baseline -    pix_fmt yuv420p -vcodec libx264 -f flv "rtmp://..."
    
...
    
   Input #0, dshow, from 'video=Webcam C110':
    
  Duration: N/A, start: 31296.194000, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 30 tbr, 10000k tbn, 30 tbc
    
Output #0
    
  Metadata:
    
    encoder         : Lavf55.8.102
    
    Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 1k tbn, 30 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo -> libx264)
    
....

    The video is sreamed, but when I try to view it at http://mediapm.edgesuite.net/edgeflash/public/zeri/debug/Main.html?url=myplayback_url/manifest.f4m
    it is not displayed.

    I've found out that if the video is recorded using FMLE and restreamed to akamai, then HLS stream is played.

    ffmpeg -re -i sample.f4v -c copy -f flv "rtmp://..."
    
....
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sample.f4v':
    
  Metadata:
    
    major_brand     : f4v
    
    minor_version   : 0
    
    compatible_brands: isommp42m4v
    
    creation_time   : 2018-10-06 09:23:33
    
  Duration: 00:01:01.77, start: 0.460000, bitrate: 718 kb/s
    
    Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 624 kb/s, 30 tbr, 1k tbn, 48 tbc
    
    Metadata:
    
      creation_time   : 2018-10-06 09:23:33
    
      handler_name    : MainConcept
    

    
Output #0
    
  Metadata:
    
    major_brand     : f4v
    
    minor_version   : 0
    
    compatible_brands: isommp42m4v
    
    encoder         : Lavf55.8.102
    
    Stream #0:0(eng): Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=2-31, 624 kb/s, 1k tbn, 1k tbc
    
    Metadata:
    
      creation_time   : 2018-10-06 09:23:33
    
      handler_name    : MainConcept
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
....

    It seems that the problem is with h.264 codec configuration, but I have found no solution yet.

    Could you please advice, how can I implement streaming like FMLE using ffmpeg ?

  • ffmpeg concatenation with -filter_complex

    16 octobre 2018, par Igniter

    I’ve seen several similar questions but none of them actually helped in my case.
    Getting this error while trying to join 1 audio and 4 video files of different nature and resolutions.

    ffmpeg -i 0.mp3 -i 1.mp4 -i 2.mkv -i 3.mkv -i 4.webm \
    
    -filter_complex [0:a:0][1:v:0][2:v:0][3:v:0][4:v:0]concat=n=5:v=1:a=1[outv][outa] \
    
    -map "[outv]" -map "[outa]" output.mp4

    All this gives the following error :

    Stream specifier ':a:0' in filtergraph description [0:a:0][1:v:0][2:v:0][3:v:0][4:v:0]concat=n=5:v=1:a=1[outv][outa] matches no streams.

    Straight concatenation -i "concat:0.mp3|1.mp4..." also doesn’t work as expected due to different resolutions and video formats. All methods syntax was taken from official documentation but there should be something that I’ve missed here.

    Full output log :

    ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
Input #0, mp3, from 'mp3/10.mp3':
    
  Metadata:
    
    album_artist    : artist
    
    title           : title
    
    artist          : 10
    
    album           : 12
    
    track           : 1
    
    VideoKind       : 2
    
    date            : 2009
    
  Duration: 00:06:00.44, start: 0.025056, bitrate: 64 kb/s
    
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 64 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 200x200 [SAR 72:72 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      comment         : Cover (front)
    
Input #1, matroska,webm, from '1.mp4':
    
  Metadata:
    
    MINOR_VERSION   : 0
    
    COMPATIBLE_BRANDS: iso6avc1mp41
    
    MAJOR_BRAND     : dash
    
    ENCODER         : Lavf57.83.100
    
  Duration: 00:01:53.05, start: 0.007000, bitrate: 2292 kb/s
    
    Stream #1:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24 fps, 24 tbr, 1k tbn, 48 tbc (default)
    
    Metadata:
    
      HANDLER_NAME    : VideoHandler
    
      DURATION        : 00:01:53.048000000
    
Input #2, matroska,webm, from '2.mkv':
    
  Metadata:
    
    MINOR_VERSION   : 0
    
    COMPATIBLE_BRANDS: iso6avc1mp41
    
    MAJOR_BRAND     : dash
    
    ENCODER         : Lavf57.83.100
    
  Duration: 00:02:08.09, start: 0.007000, bitrate: 1607 kb/s
    
    Stream #2:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24 fps, 24 tbr, 1k tbn, 48 tbc (default)
    
    Metadata:
    
      HANDLER_NAME    : VideoHandler
    
      DURATION        : 00:02:08.090000000
    
Input #3, matroska,webm, from '3.mkv':
    
  Metadata:
    
    MINOR_VERSION   : 0
    
    COMPATIBLE_BRANDS: iso6avc1mp41
    
    MAJOR_BRAND     : dash
    
    ENCODER         : Lavf57.83.100
    
  Duration: 00:01:37.05, start: 0.007000, bitrate: 3525 kb/s
    
    Stream #3:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24 fps, 24 tbr, 1k tbn, 48 tbc (default)
    
    Metadata:
    
      HANDLER_NAME    : VideoHandler
    
      DURATION        : 00:01:37.048000000
    
Input #4, matroska,webm, from '4.webm':
    
  Metadata:
    
    MINOR_VERSION   : 0
    
    COMPATIBLE_BRANDS: iso6avc1mp41
    
    MAJOR_BRAND     : dash
    
    ENCODER         : Lavf57.83.100
    
  Duration: 00:01:45.13, start: 0.007000, bitrate: 3685 kb/s
    
    Stream #4:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24 fps, 24 tbr, 1k tbn, 48 tbc (default)
    
    Metadata:
    
      HANDLER_NAME    : VideoHandler
    
      DURATION        : 00:01:45.131000000
    
Stream specifier ':a:0' in filtergraph description [0:a:0][1:v:0][2:v:0][3:v:0][4:v:0]concat=n=5:v=1:a=1[outv][outa] matches no streams.

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