Sur d’autres sites (7335)

• avcodec : postpone removal of deprecated libopenh264 wrapper options

  19 avril 2021, par James Almer

  avcodec : postpone removal of deprecated libopenh264 wrapper options
  They were deprecated only a year ago
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/version.h

• ffmpeg conversion from Flac to Ogg produces corrupted files

  8 avril 2021, par experimental

  i transcoded flac files to ogg using this command

  


  ffmpeg -i input.flac -c:a libvorbis -b:a 500k  output.ogg


  


  yes i use 500k to keep the highest quality possible, some of the files are ok, but some of them can not be played - Unsupported format or corrupted file says the foobar - also my icecast streamer cant read it. So there is something wrong with the files.

  


  I believed it was due to the high bitrate so I tried

  


  ffmpeg -i input.flac -c:a libvorbis -b:a 320k  output.ogg


  


  the same happened, some files were ok, some were not playable.
so I tried again with default using this command

  


  ffmpeg -i input.flac -c:a libvorbis output.ogg


  


  same thing. some files were ok, some were corrupted and not playable.

  


  i have no clue why.

  


  both flac and ogg are in the same family, what happened during the transcoding that it became a corrupted file ?

  


  the spectral analysis does not show anything wrong - here it the ogg https://prnt.sc/115zdjl, here is the original flac https://prnt.sc/115zegw

  


  i am really interested what is going on and how to make it work ?

  


  can anyone explain ?

  


  here is complete log

  


      C:\Users\lukas.kotatko>ffmpeg -i "\\192.168.0.128\lukas\online radio resources\Atma FM playlists\channel 1\flac lossless\Tuu\One Thousand Years\02 One Thousand Years.flac" -c:a libvorbis -b:a 500k "\\192.168.0.128\lukas\online radio resources\Atma FM playlists\channel 1\flac lossless\Tuu\One Thousand Years\02 One Thousand Years [500k test].ogg"
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 10.2.1 (GCC) 20200726
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, flac, from '\\192.168.0.128\lukas\online radio resources\Atma FM playlists\channel 1\flac lossless\Tuu\One Thousand Years\02 One Thousand Years.flac':
  Metadata:
    GENRE           : Tribal / Ambient
    ORGANIZATION    : Waveform Records
    ISRC            : 01101-2
    COMMENT         : US reissue featuring the six original tracks plus two taken from the Invocation album.
    MUSICBRAINZ_RELEASEGROUPID: 737d0518-3dc2-36b3-9419-282c0ade0e50
    ORIGINALDATE    : 1993
    ORIGINALYEAR    : 1993
    RELEASETYPE     : album
    MUSICBRAINZ_ALBUMID: f6339129-f662-43a1-93df-2f20540f73cc
    ALBUM           : One Thousand Years
    BARCODE         : 789060110125
    MUSICBRAINZ_ALBUMARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
    album_artist    : Tuu
    ALBUMARTISTSORT : Tuu
    ASIN            : B00005B9TT
    SCRIPT          : Latn
    RELEASESTATUS   : official
    LABEL           : Waveform Records
    CATALOGNUMBER   : 01101-2
    RELEASECOUNTRY  : US
    DATE            : 2001-05-08
    TOTALDISCS      : 1
    disc            : 1
    TOTALTRACKS     : 8
    MEDIA           : CD
    MUSICBRAINZ_TRACKID: aef9824d-e4a6-4ae6-aebe-50a83dd14f71
    TITLE           : One Thousand Years
    MUSICBRAINZ_ARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
    ARTIST          : Tuu
    ARTISTSORT      : Tuu
    ARTISTS         : Tuu
    MUSICBRAINZ_RELEASETRACKID: 621c9da6-a85d-3f8b-b485-5e6f74a60cd0
    track           : 2
    TRACKTOTAL      : 8
    DISCTOTAL       : 1
  Duration: 00:08:03.67, start: 0.000000, bitrate: 792 kb/s
    Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
    Stream #0:1: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 600x600 [SAR 1:1 DAR 1:1], 90k tbr, 90k tbn, 90k tbc (attached pic)
    Metadata:
      comment         : Cover (front)
Stream mapping:
  Stream #0:1 -> #0:0 (mjpeg (native) -> theora (libtheora))
  Stream #0:0 -> #0:1 (flac (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help
[swscaler @ 0000015307581a00] deprecated pixel format used, make sure you did set range correctly
[ogg @ 00000153073f1680] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or -vsync 2
Output #0, ogg, to '\\192.168.0.128\lukas\online radio resources\Atma FM playlists\channel 1\flac lossless\Tuu\One Thousand Years\02 One Thousand Years [500k test].ogg':
  Metadata:
    GENRE           : Tribal / Ambient
    ORGANIZATION    : Waveform Records
    ISRC            : 01101-2
    COMMENT         : US reissue featuring the six original tracks plus two taken from the Invocation album.
    MUSICBRAINZ_RELEASEGROUPID: 737d0518-3dc2-36b3-9419-282c0ade0e50
    ORIGINALDATE    : 1993
    ORIGINALYEAR    : 1993
    RELEASETYPE     : album
    MUSICBRAINZ_ALBUMID: f6339129-f662-43a1-93df-2f20540f73cc
    ALBUM           : One Thousand Years
    BARCODE         : 789060110125
    MUSICBRAINZ_ALBUMARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
    album_artist    : Tuu
    ALBUMARTISTSORT : Tuu
    ASIN            : B00005B9TT
    SCRIPT          : Latn
    RELEASESTATUS   : official
    LABEL           : Waveform Records
    CATALOGNUMBER   : 01101-2
    RELEASECOUNTRY  : US
    DATE            : 2001-05-08
    TOTALDISCS      : 1
    disc            : 1
    TOTALTRACKS     : 8
    MEDIA           : CD
    MUSICBRAINZ_TRACKID: aef9824d-e4a6-4ae6-aebe-50a83dd14f71
    TITLE           : One Thousand Years
    MUSICBRAINZ_ARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
    ARTIST          : Tuu
    ARTISTSORT      : Tuu
    ARTISTS         : Tuu
    MUSICBRAINZ_RELEASETRACKID: 621c9da6-a85d-3f8b-b485-5e6f74a60cd0
    track           : 2
    TRACKTOTAL      : 8
    DISCTOTAL       : 1
    encoder         : Lavf58.45.100
    Stream #0:0: Video: theora (libtheora), yuv420p(progressive), 600x600 [SAR 1:1 DAR 1:1], q=2-31, 200 kb/s, 90k fps, 90k tbn, 90k tbc (attached pic)
    Metadata:
      DESCRIPTION     : Cover (front)
      encoder         : Lavc58.91.100 libtheora
      GENRE           : Tribal / Ambient
      ORGANIZATION    : Waveform Records
      ISRC            : 01101-2
      MUSICBRAINZ_RELEASEGROUPID: 737d0518-3dc2-36b3-9419-282c0ade0e50
      ORIGINALDATE    : 1993
      ORIGINALYEAR    : 1993
      RELEASETYPE     : album
      MUSICBRAINZ_ALBUMID: f6339129-f662-43a1-93df-2f20540f73cc
      ALBUM           : One Thousand Years
      BARCODE         : 789060110125
      MUSICBRAINZ_ALBUMARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
      ALBUMARTIST     : Tuu
      ALBUMARTISTSORT : Tuu
      ASIN            : B00005B9TT
      SCRIPT          : Latn
      RELEASESTATUS   : official
      LABEL           : Waveform Records
      CATALOGNUMBER   : 01101-2
      RELEASECOUNTRY  : US
      DATE            : 2001-05-08
      TOTALDISCS      : 1
      DISCNUMBER      : 1
      TOTALTRACKS     : 8
      MEDIA           : CD
      MUSICBRAINZ_TRACKID: aef9824d-e4a6-4ae6-aebe-50a83dd14f71
      TITLE           : One Thousand Years
      MUSICBRAINZ_ARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
      ARTIST          : Tuu
      ARTISTSORT      : Tuu
      ARTISTS         : Tuu
      MUSICBRAINZ_RELEASETRACKID: 621c9da6-a85d-3f8b-b485-5e6f74a60cd0
      TRACKNUMBER     : 2
      TRACKTOTAL      : 8
      DISCTOTAL       : 1
    Stream #0:1: Audio: vorbis (libvorbis), 44100 Hz, stereo, fltp (16 bit), 500 kb/s
    Metadata:
      encoder         : Lavc58.91.100 libvorbis
      GENRE           : Tribal / Ambient
      ORGANIZATION    : Waveform Records
      ISRC            : 01101-2
      DESCRIPTION     : US reissue featuring the six original tracks plus two taken from the Invocation album.
      MUSICBRAINZ_RELEASEGROUPID: 737d0518-3dc2-36b3-9419-282c0ade0e50
      ORIGINALDATE    : 1993
      ORIGINALYEAR    : 1993
      RELEASETYPE     : album
      MUSICBRAINZ_ALBUMID: f6339129-f662-43a1-93df-2f20540f73cc
      ALBUM           : One Thousand Years
      BARCODE         : 789060110125
      MUSICBRAINZ_ALBUMARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
      ALBUMARTIST     : Tuu
      ALBUMARTISTSORT : Tuu
      ASIN            : B00005B9TT
      SCRIPT          : Latn
      RELEASESTATUS   : official
      LABEL           : Waveform Records
      CATALOGNUMBER   : 01101-2
      RELEASECOUNTRY  : US
      DATE            : 2001-05-08
      TOTALDISCS      : 1
      DISCNUMBER      : 1
      TOTALTRACKS     : 8
      MEDIA           : CD
      MUSICBRAINZ_TRACKID: aef9824d-e4a6-4ae6-aebe-50a83dd14f71
      TITLE           : One Thousand Years
      MUSICBRAINZ_ARTISTID: e05a42e7-60a3-4d2d-983c-51dc4eb67cad
      ARTIST          : Tuu
      ARTISTSORT      : Tuu
      ARTISTS         : Tuu
      MUSICBRAINZ_RELEASETRACKID: 621c9da6-a85d-3f8b-b485-5e6f74a60cd0
      TRACKNUMBER     : 2
      TRACKTOTAL      : 8
      DISCTOTAL       : 1
frame=    1 fps=0.1 q=-0.0 Lsize=   25860kB time=00:08:03.66 bitrate= 438.0kbits/s speed=44.6x
video:8kB audio:25721kB subtitle:0kB other streams:0kB global headers:7kB muxing overhead: 0.511663%


  


• Dash.js not playing mpd files made with ffmpeg

  31 décembre 2022, par Macster

  I'm using ffmpeg to create chunks and manifest of a webm file which I want to live stream with Dash.js. Unfortunately Dash.js won't play the mpd file, no matter which way I create the chunks and manifest. However, the sample mpd URL from Dash.js is working.

  


  Commands

  


  ffmpeg -re -r 25 -i Dash/strm.webm
-map 0:v:0
-pix_fmt yuv420p
-c:v libvpx
-s 640x480 -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 3000k
-f webm_chunk
-header "Dash/glass_360.hdr"
-chunk_start_index 1 Dash/glass_360_%d.chk
-map 0:a:0
-c:a libvorbis
-b:a 128k -ar 44100
-f webm_chunk
-audio_chunk_duration 2000
-header Dash/glass_171.hdr
-chunk_start_index 1 Dash/glass_171_%d.chk


//Manifest
ffmpeg
-f webm_dash_manifest -live 1
-i Dash/glass_360.hdr
-f webm_dash_manifest -live 1
-i Dash/glass_171.hdr
-c copy
-map 0 -map 1
-f webm_dash_manifest -live 1
-adaptation_sets "id=0,streams=0 id=1,streams=1"
-chunk_start_index 1
-chunk_duration_ms 2000
-time_shift_buffer_depth 7200
-minimum_update_period 7200 Dash/glass_video_manifest.mpd


  


  Manifest output

  


  ffmpeg version git-2020-05-27-8b5ffae Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200523
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 49.100 / 56. 49.100
  libavcodec     58. 87.101 / 58. 87.101
  libavformat    58. 43.100 / 58. 43.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 83.100 /  7. 83.100
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, webm_dash_manifest, from 'Dash/glass_360.hdr':
  Metadata:
    ENCODER         : Lavf58.43.100
  Duration: N/A, bitrate: N/A
    Stream #0:0(eng): Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
    Metadata:
      ALPHA_MODE      : 1
      ENCODER         : Lavc58.87.101 libvpx
      webm_dash_manifest_file_name: glass_360.hdr
      webm_dash_manifest_track_number: 1
Input #1, webm_dash_manifest, from 'Dash/glass_171.hdr':
  Metadata:
    ENCODER         : Lavf58.43.100
  Duration: N/A, bitrate: N/A
    Stream #1:0(eng): Audio: vorbis, 44100 Hz, mono, fltp (default)
    Metadata:
      ENCODER         : Lavc58.87.101 libvorbis
      webm_dash_manifest_file_name: glass_171.hdr
      webm_dash_manifest_track_number: 1
Output #0, webm_dash_manifest, to 'Dash/glass_video_manifest.mpd':
  Metadata:
    encoder         : Lavf58.43.100
    Stream #0:0(eng): Video: vp8, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 1k tbr, 1k tbn, 1k tbc (default)
    Metadata:
      ALPHA_MODE      : 1
      ENCODER         : Lavc58.87.101 libvpx
      webm_dash_manifest_file_name: glass_360.hdr
      webm_dash_manifest_track_number: 1
    Stream #0:1(eng): Audio: vorbis, 44100 Hz, mono, fltp (default)
    Metadata:
      ENCODER         : Lavc58.87.101 libvorbis
      webm_dash_manifest_file_name: glass_171.hdr
      webm_dash_manifest_track_number: 1
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=-1.0 Lsize=       1kB time=00:00:00.00 bitrate=N/A speed=   0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: unknown


  


  Manifest file
  (glass_video_manifest.mpd)
  
I tried to delete the ContetntComponent like suggested in other questions, but it didn't work.

  


  &lt;?xml version="1.0" encoding="UTF-8"?>&#xA;&#xA;<period start="PT0S">&#xA;<adaptationset mimetype="video/webm" codecs="vp8" lang="eng" bitstreamswitching="true" subsegmentalignment="true" subsegmentstartswithsap="1">&#xA;<contentcomponent type="video"></contentcomponent>&#xA;<segmenttemplate timescale="1000" duration="2000" media="glass_$RepresentationID$_$Number$.chk" startnumber="1" initialization="glass_$RepresentationID$.hdr"></segmenttemplate>&#xA;<representation bandwidth="1000000" width="640" height="480" codecs="vp8" mimetype="video/webm" startswithsap="1"></representation>&#xA;</adaptationset>&#xA;<adaptationset mimetype="audio/webm" codecs="vorbis" lang="eng" bitstreamswitching="true" subsegmentalignment="true" subsegmentstartswithsap="1">&#xA;<contentcomponent type="audio"></contentcomponent>&#xA;<segmenttemplate timescale="1000" duration="2000" media="glass_$RepresentationID$_$Number$.chk" startnumber="1" initialization="glass_$RepresentationID$.hdr"></segmenttemplate>&#xA;<representation bandwidth="128000" audiosamplingrate="44100" codecs="vorbis" mimetype="audio/webm" startswithsap="1"></representation>&#xA;</adaptationset>&#xA;</period>&#xA;&#xA;

  


  Dash.js-Player

  


  <code class="echappe-js">&lt;script&gt;&amp;#xA;&amp;#xA;(function(){&amp;#xA;  // var url = &quot;https://dash.akamaized.net/envivio/EnvivioDash3/manifest.mpd&quot;;&amp;#xA;  var url = &quot;http://localhost:8081/videos/Dash/glass_live_manifest.mpd&quot;;&amp;#xA;  var player = dashjs.MediaPlayer().create();&amp;#xA;                &amp;#xA;  // config&amp;#xA;  targetLatency = 2.0;        // Lowering this value will lower latency but may decrease the player&amp;#x27;s ability to build a stable buffer.&amp;#xA;  minDrift = 0.05;            // Minimum latency deviation allowed before activating catch-up mechanism.&amp;#xA;  catchupPlaybackRate = 0.5;  // Maximum catch-up rate, as a percentage, for low latency live streams.&amp;#xA;  stableBuffer = 2;           // The time that the internal buffer target will be set to post startup/seeks (NOT top quality).&amp;#xA;  bufferAtTopQuality = 2;     // The time that the internal buffer target will be set to once playing the top quality.&amp;#xA;&amp;#xA;   player.updateSettings({&amp;#xA;      &amp;#x27;streaming&amp;#x27;: {&amp;#xA;          &amp;#x27;liveDelay&amp;#x27;: 2,&amp;#xA;          &amp;#x27;liveCatchUpMinDrift&amp;#x27;: 0.05,&amp;#xA;          &amp;#x27;liveCatchUpPlaybackRate&amp;#x27;: 0.5,&amp;#xA;          &amp;#x27;stableBufferTime&amp;#x27;: 2,&amp;#xA;          &amp;#x27;bufferTimeAtTopQuality&amp;#x27;: 2,&amp;#xA;          &amp;#x27;bufferTimeAtTopQualityLongForm&amp;#x27;: 2,&amp;#xA;          &amp;#x27;bufferToKeep&amp;#x27;: 2,&amp;#xA;          &amp;#x27;bufferAheadToKeep&amp;#x27;: 2,&amp;#xA;          &amp;#x27;lowLatencyEnabled&amp;#x27;: true,&amp;#xA;          &amp;#x27;fastSwitchEnabled&amp;#x27;: true,&amp;#xA;          &amp;#x27;abr&amp;#x27;: {&amp;#xA;               &amp;#x27;limitBitrateByPortal&amp;#x27;: true&amp;#xA;          },&amp;#xA;       }&amp;#xA;   });&amp;#xA;&amp;#xA;   console.log(player.getSettings());&amp;#xA;&amp;#xA;   setInterval(() =&gt; {&amp;#xA;      console.log(&amp;#x27;Live latency= &amp;#x27;, player.getCurrentLiveLatency());&amp;#xA;      console.log(&amp;#x27;Buffer length= &amp;#x27;, player.getBufferLength(&amp;#x27;video&amp;#x27;));&amp;#xA;     }, 3000);&amp;#xA;&amp;#xA;     player.initialize(document.querySelector(&quot;#videoPlayer&quot;), url, true);&amp;#xA;&amp;#xA;   })();&amp;#xA;&lt;/script&gt;&#xA;

  


  Chrome

  


  {debug: {…}, streaming: {…}}
dash.all.min.js:2 XHR finished loading: GET "http://localhost:8081/videos/Dash/glass_live_manifest.mpd".
load @ dash.all.min.js:2
C @ dash.all.min.js:2
load @ dash.all.min.js:2
load @ dash.all.min.js:2
load @ dash.all.min.js:2
load @ dash.all.min.js:2
se @ dash.all.min.js:2
te @ dash.all.min.js:2
initialize @ dash.all.min.js:2
(anonymous) @ Dash:92
(anonymous) @ Dash:94
DevTools failed to load SourceMap: Could not parse content for http://localhost:8081/js/dash.all.min.js.map: Cannot read property 'length' of undefined
Dash:88 Live latency=  NaN
Dash:89 Buffer length=  NaN
Dash:88 Live latency=  NaN
Dash:89 Buffer length=  NaN
Dash:88 Live latency=  NaN
Dash:89 Buffer length=  NaN
Dash:88 Live latency=  NaN
Dash:89 Buffer length=  NaN
Dash:88 Live latency=  NaN
Dash:89 Buffer length=  NaN


  


  UPDATE

  


  Well, it seems like the problem in general was, that the mpd's wouldn't play from that /dash folder. So i took a look into the code and found a bad routing. Anyways, the mpd would't start with the given command I used, probably becasue it creates a dynamic manifest, like @Markus Schumann says. So I'm going with a new one which seems to be working for now, but not very well.

  


  ffmpeg -y -re -i strm.webm 
-c:v libx264 -x264opts "keyint=24:min-keyint=24:no-scenecut" 
-r 24 -c:a aac -b:a 128k -bf 1 -b_strategy 0 -sc_threshold 0 -pix_fmt yuv420p 
-map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 -map 0:v:0 -map 0:a:0 -b:v:0 250k  
-filter:v:0 "scale=-2:240" -profile:v:0 baseline -b:v:1 750k  
-filter:v:1 "scale=-2:480" -profile:v:1 main -b:v:2 1500k 
-filter:v:2 "scale=-2:720" -profile:v:2 high 
-use_timeline 1 -use_template 1 -window_size 5 -adaptation_sets "id=0,streams=v id=1,streams=a" 
-f dash glass_video_manifest.mpd