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• MPEG-DASH - Multiplexed Representations Issue

  26 avril 2017, par Mike

  I’m trying to learn ffmpeg, MP4Box, and MPEG-DASH, but I’m running into an issue with the .mp4 I’m using. I’m using ffmpeg to demux the mp4 with this command :

  ffmpeg -i test.mp4 -c:v copy -g 72 -an video.mp4 -c:a copy audio.mp4

  Once the two files are created, I use MP4Box to segment the files for the dash player using this command :

  MP4Box -dash 4000 -frag 1000 -rap -segment-name segment_ output.mp4

  Which does create all the files I think I need. Then I point the player to the output_dash.mpd and nothing happens except a ton of messages in the console :

  [8] EME detected on this user agent! (ProtectionModel_21Jan2015) 
  
  [11] Playback Initialized 
  
  [21] [dash.js 2.3.0] MediaPlayer has been initialized 
  
  [64] Parsing complete: ( xml2json: 3.42ms, objectiron: 2.61ms, total: 0.00603s) 
  
  [65] Manifest has been refreshed at Wed Apr 12 2017 12:16:52 GMT-0600 (MDT)[1492021012.196]  
  
  [72] MediaSource attached to element.  Waiting on open... 
  
  [77] MediaSource is open! 
  
  [77] Duration successfully set to: 148.34 
  
  [78] Added 0 inline events 
  
  [78] No video data. 
  
  [79] No audio data. 
  
  [79] No text data. 
  
  [79] No fragmentedText data. 
  
  [79] No embeddedText data. 
  
  [80] Multiplexed representations are intentionally not supported, as they are not compliant with the DASH-AVC/264 guidelines 
  
  [81] No streams to play.

  Here is the MP4Box -info on the video I’m using :

  * Movie Info *
  
      Timescale 1000 - Duration 00:02:28.336
  
      Fragmented File no - 2 track(s)
  
      File suitable for progressive download (moov before mdat)
  
      File Brand mp42 - version 512
  
      Created: GMT Wed Feb  6 06:28:16 2036
  
  
  
  File has root IOD (9 bytes)
  
  Scene PL 0xff - Graphics PL 0xff - OD PL 0xff
  
  Visual PL: Not part of MPEG-4 Visual profiles (0xfe)
  
  Audio PL: Not part of MPEG-4 audio profiles (0xfe)
  
  No streams included in root OD
  
  
  
  iTunes Info:
  
      Name: Rogue One - A Star Wars Story
  
      Artist: Lucasfilm
  
      Genre: Trailer
  
      Created: 2016
  
      Encoder Software: HandBrake 0.10.2 2015060900
  
      Cover Art: JPEG File
  
  
  
  Track # 1 Info - TrackID 1 - TimeScale 90000 - Duration 00:02:28.335
  
  Media Info: Language "Undetermined" - Type "vide:avc1" - 3552 samples
  
  Visual Track layout: x=0 y=0 width=1920 height=816
  
  MPEG-4 Config: Visual Stream - ObjectTypeIndication 0x21
  
  AVC/H264 Video - Visual Size 1920 x 816
  
      AVC Info: 1 SPS - 1 PPS - Profile High @ Level 4.1
  
      NAL Unit length bits: 32
  
      Pixel Aspect Ratio 1:1 - Indicated track size 1920 x 816
  
  Self-synchronized
  
  
  
  Track # 2 Info - TrackID 2 - TimeScale 44100 - Duration 00:02:28.305
  
  Media Info: Language "English" - Type "soun:mp4a" - 6387 samples
  
  MPEG-4 Config: Audio Stream - ObjectTypeIndication 0x40
  
  MPEG-4 Audio MPEG-4 Audio AAC LC - 2 Channel(s) - SampleRate 44100
  
  Synchronized on stream 1
  
  Alternate Group ID 1

  I know I need to separate the video and audio and I think that’s where my issue is. The command I’m using probably isn’t doing the right thing.

  Is there a better command to demux my mp4 ?
  Is the MP4Box command I’m using best for segmenting the files ?
  If I use different files, will they always need to be demuxed ?

  One thing to mention, if I use the following commands everything works fine, but there is no audio because of the -an which means it’s only video :

  ffmpeg -i test.mp4 -c:v copy -g 72 -an output.mp4
  
  
  
  MP4Box -dash 4000 -frag 1000 -rap -segment-name segment_ output.mp4

  UPDATE

  I noticed that the video had no audio stream, but the audio had the video stream which is why I got the mux error. I thought that might be an issue so I ran this command to keep the unwanted streams out of the outputs :

  ffmpeg -i test.mp4 -c:v copy -g 72 -an video.mp4 -c:a copy -vn audio.mp4

  then I run :

  MP4Box -dash 4000 -frag 1000 -rap -segment-name segment_ video.mp4 audio.mp4

  now I no longer get the Multiplexed representations are intentionally not supported... message, but now I get :

  [122] Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTED 
  
  [123] [object MediaError] 
  
  [125] Schedule controller stopping for audio 
  
  [126] Caught pending play exception - continuing (NotSupportedError: Failed to load because no supported source was found.)

  I tried playing the video and audio independently through Chrome and they both work, just not through the dash player. Ugh, this is painful to learn, but I feel like I’m making progress.

• nginx RTMP to HLS : FFMPG error when trying multiple bitrate output [on hold]

  28 mai 2014, par user3685074

  I’m currently trying to convert my RTMP Livestream into a HLS with 3 quality-settings.

  I followed this guide

  I’ve compiled my own FFMPEG and it’s working if I just convert 1 file.
  It seems libx264 isn’t able to do multiple encodings at the same time ?

  I’m using these command :

          exec /usr/local/bin/ffmpeg -i rtmp://localhost/src/$name 
  
          -c:a libfdk_aac -b:a 32k   -c:v libx264 -b:v 128K -f flv rtmp://localhost/hls/$name_low 
  
          -c:a libfdk_aac -b:a 64k   -c:v libx264 -b:v 256K -f flv rtmp://localhost/hls/$name_mid 
  
          -c:a libfdk_aac -b:a 128k  -c:v libx264 -b:v 512K -f flv rtmp://localhost/hls/$name_hi  2>>/tmp/ffmpeg.log;

  this is the output :

      ffmpeg version N-63519-g61917a1 Copyright (c) 2000-2014 the FFmpeg developers
  
        built on May 28 2014 18:06:42 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  
        configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-x11grab --enable-libvpx --enable-libmp3lame --enable-librtmp --enable-libspeex --enable-libfdk_aac
  
        libavutil      52. 87.100 / 52. 87.100
  
        libavcodec     55. 65.100 / 55. 65.100
  
        libavformat    55. 41.100 / 55. 41.100
  
        libavdevice    55. 13.101 / 55. 13.101
  
        libavfilter     4.  5.100 /  4.  5.100
  
        libswscale      2.  6.100 /  2.  6.100
  
        libswresample   0. 19.100 /  0. 19.100
  
        libpostproc    52.  3.100 / 52.  3.100
  
      Metadata:
  
        Server                NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
        width                 1280.00
  
        height                720.00
  
        displayWidth          1280.00
  
        displayHeight         720.00
  
        duration              0.00
  
        framerate             25.00
  
        fps                   25.00
  
        videodatarate         390.00
  
        videocodecid          0.00
  
        audiodatarate         27.00
  
        audiocodecid          11.00
  
      Input #0, flv, from 'rtmp://localhost/src/test':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
        Duration: 00:00:00.00, start: 0.080000, bitrate: N/A
  
          Stream #0:0: Video: h264 (High), yuv420p, 1280x720, 399 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
  
          Stream #0:1: Audio: speex, 16000 Hz, mono, s16, 27 kb/s
  
      [libx264 @ 0x5260380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
      [libx264 @ 0x5260380] profile High, level 3.1
  
      [libx264 @ 0x5260380] 264 - core 142 r2431 f23da7c - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=24 lookahead_threads=4 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=128 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
      [libx264 @ 0x525a920] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
      Output #0, flv, to 'rtmp://localhost/hls/test_low':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
          Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720, q=-1--1, 128 kb/s, 25 fps, 90k tbn, 25 tbc
  
          Metadata:
  
            encoder         : Lavc55.65.100 libx264
  
          Stream #0:1: Audio: aac (libfdk_aac), 16000 Hz, mono, s16, 32 kb/s
  
          Metadata:
  
            encoder         : Lavc55.65.100 libfdk_aac
  
      Output #1, flv, to 'rtmp://localhost/hls/test_mid':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
          Stream #1:0: Video: h264, yuv420p, 1280x720, q=-1--1, 256 kb/s, 25 fps, 90k tbn, 25 tbc
  
          Metadata:
  
            encoder         : Lavc55.65.100 libx264
  
          Stream #1:1: Audio: aac, 16000 Hz, mono, s16
  
          Metadata:
  
            encoder         : Lavc55.65.100 libfdk_aac
  
      Output #2, flv, to 'rtmp://localhost/hls/test_hi':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
          Stream #2:0: Video: h264, yuv420p, 1280x720, q=-1--1, 25 fps, 90k tbn, 25 tbc
  
          Metadata:
  
            encoder         : Lavc55.65.100 libx264
  
          Stream #2:1: Audio: aac, 16000 Hz, mono, s16
  
          Metadata:
  
            encoder         : Lavc55.65.100 libfdk_aac
  
      Stream mapping:
  
        Stream #0:0 -> #0:0 (h264 -> libx264)
  
        Stream #0:1 -> #0:1 (libspeex -> libfdk_aac)
  
        Stream #0:0 -> #1:0 (h264 -> libx264)
  
        Stream #0:1 -> #1:1 (libspeex -> libfdk_aac)
  
        Stream #0:0 -> #2:0 (h264 -> libx264)
  
        Stream #0:1 -> #2:1 (libspeex -> libfdk_aac)
  
      Error while opening encoder for output stream #1:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  I hope you can help me and sorry for my bad english.

  Greetz
  Kevin

• nginx RTMP to HLS : FFMPG error when trying multiple bitrate output [closed]

  28 mai 2014, par user3685074

  I’m currently trying to convert my RTMP Livestream into a HLS with 3 quality-settings.

  I followed this guide

  I’ve compiled my own FFMPEG and it’s working if I just convert 1 file.
  It seems libx264 isn’t able to do multiple encodings at the same time ?

  I’m using these command :

          exec /usr/local/bin/ffmpeg -i rtmp://localhost/src/$name 
  
          -c:a libfdk_aac -b:a 32k   -c:v libx264 -b:v 128K -f flv rtmp://localhost/hls/$name_low 
  
          -c:a libfdk_aac -b:a 64k   -c:v libx264 -b:v 256K -f flv rtmp://localhost/hls/$name_mid 
  
          -c:a libfdk_aac -b:a 128k  -c:v libx264 -b:v 512K -f flv rtmp://localhost/hls/$name_hi  2>>/tmp/ffmpeg.log;

  this is the output :

      ffmpeg version N-63519-g61917a1 Copyright (c) 2000-2014 the FFmpeg developers
  
        built on May 28 2014 18:06:42 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5.1)
  
        configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-x11grab --enable-libvpx --enable-libmp3lame --enable-librtmp --enable-libspeex --enable-libfdk_aac
  
        libavutil      52. 87.100 / 52. 87.100
  
        libavcodec     55. 65.100 / 55. 65.100
  
        libavformat    55. 41.100 / 55. 41.100
  
        libavdevice    55. 13.101 / 55. 13.101
  
        libavfilter     4.  5.100 /  4.  5.100
  
        libswscale      2.  6.100 /  2.  6.100
  
        libswresample   0. 19.100 /  0. 19.100
  
        libpostproc    52.  3.100 / 52.  3.100
  
      Metadata:
  
        Server                NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
        width                 1280.00
  
        height                720.00
  
        displayWidth          1280.00
  
        displayHeight         720.00
  
        duration              0.00
  
        framerate             25.00
  
        fps                   25.00
  
        videodatarate         390.00
  
        videocodecid          0.00
  
        audiodatarate         27.00
  
        audiocodecid          11.00
  
      Input #0, flv, from 'rtmp://localhost/src/test':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
        Duration: 00:00:00.00, start: 0.080000, bitrate: N/A
  
          Stream #0:0: Video: h264 (High), yuv420p, 1280x720, 399 kb/s, 25 fps, 25 tbr, 1k tbn, 50 tbc
  
          Stream #0:1: Audio: speex, 16000 Hz, mono, s16, 27 kb/s
  
      [libx264 @ 0x5260380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
      [libx264 @ 0x5260380] profile High, level 3.1
  
      [libx264 @ 0x5260380] 264 - core 142 r2431 f23da7c - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=24 lookahead_threads=4 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=128 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
      [libx264 @ 0x525a920] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
      Output #0, flv, to 'rtmp://localhost/hls/test_low':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
          Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720, q=-1--1, 128 kb/s, 25 fps, 90k tbn, 25 tbc
  
          Metadata:
  
            encoder         : Lavc55.65.100 libx264
  
          Stream #0:1: Audio: aac (libfdk_aac), 16000 Hz, mono, s16, 32 kb/s
  
          Metadata:
  
            encoder         : Lavc55.65.100 libfdk_aac
  
      Output #1, flv, to 'rtmp://localhost/hls/test_mid':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
          Stream #1:0: Video: h264, yuv420p, 1280x720, q=-1--1, 256 kb/s, 25 fps, 90k tbn, 25 tbc
  
          Metadata:
  
            encoder         : Lavc55.65.100 libx264
  
          Stream #1:1: Audio: aac, 16000 Hz, mono, s16
  
          Metadata:
  
            encoder         : Lavc55.65.100 libfdk_aac
  
      Output #2, flv, to 'rtmp://localhost/hls/test_hi':
  
        Metadata:
  
          Server          : NGINX RTMP (github.com/arut/nginx-rtmp-module)
  
          displayWidth    : 1280
  
          displayHeight   : 720
  
          fps             : 25
  
          profile         : 
  
          level           : 
  
          Stream #2:0: Video: h264, yuv420p, 1280x720, q=-1--1, 25 fps, 90k tbn, 25 tbc
  
          Metadata:
  
            encoder         : Lavc55.65.100 libx264
  
          Stream #2:1: Audio: aac, 16000 Hz, mono, s16
  
          Metadata:
  
            encoder         : Lavc55.65.100 libfdk_aac
  
      Stream mapping:
  
        Stream #0:0 -> #0:0 (h264 -> libx264)
  
        Stream #0:1 -> #0:1 (libspeex -> libfdk_aac)
  
        Stream #0:0 -> #1:0 (h264 -> libx264)
  
        Stream #0:1 -> #1:1 (libspeex -> libfdk_aac)
  
        Stream #0:0 -> #2:0 (h264 -> libx264)
  
        Stream #0:1 -> #2:1 (libspeex -> libfdk_aac)
  
      Error while opening encoder for output stream #1:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  I hope you can help me and sorry for my bad english.

  Greetz
  Kevin