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• Using ffmpeg to generate dash manifest and it cannot be played by dash.js

  18 mars 2019, par Punkhead

  I’m using ffmpeg to encode incoming stream via rtmp protocol, the code as following :

  ffmpeg -re -i rtmp://localhost:1935${StreamPath} -use_timeline 1 /
  
  -use_template 1 -window_size 10 -min_seg_duration 5000 -f dash out.mpd

  The manifest looks like this :

  <?xml version="1.0" encoding="utf-8"?>
  
  <mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT1M36.4S" minbuffertime="PT8.3S">
  
      <programinformation>
  
      </programinformation>
  
      <period start="PT0.0S">
  
          <adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true" framerate="30/1">
  
          <representation mimetype="video/mp4" codecs="avc1.640028" width="1920" height="1080" framerate="30/1">
  
              <segmenttemplate timescale="15360" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="4">
  
                  <segmenttimeline>
  
                      <s t="384000" d="128000"></s>
  
                      <s d="71680"></s>
  
                      <s d="128000" r="4"></s>
  
                      <s d="56832"></s>
  
                      <s d="128000"></s>
  
                      <s d="72704"></s>
  
                  </segmenttimeline>
  
              </segmenttemplate>
  
          </representation>
  
      </adaptationset>
  
      <adaptationset contenttype="audio" segmentalignment="true" bitstreamswitching="true">
  
          <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="128000" audiosamplingrate="44100">
  
              <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
  
              <segmenttemplate timescale="44100" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="4">
  
                  <segmenttimeline>
  
                      <s t="1099755" d="367616"></s>
  
                      <s d="205824"></s>
  
                      <s d="367616" r="4"></s>
  
                      <s d="162816"></s>
  
                      <s d="367616"></s>
  
                      <s d="207872"></s>
  
                  </segmenttimeline>
  
              </segmenttemplate>
  
          </representation>
  
      </adaptationset>
  
  </period>
  
  </mpd>

  When I try to play it on dash.js player, a error occured :

  [112] Parsing complete: ( xml2json: 3.50ms, objectiron: 1.76ms, total: 0.00526s) Debug.js:127 
  
  [116] SegmentTimeline detected using calculated Live Edge Time Debug.js:127 
  
  [118] MediaSource attached to element.  Waiting on open... Debug.js:127 
  
  [119] Manifest has been refreshed at Tue Jan 02 2018 01:57:35 GMT+0800 [1514829455.1] Debug.js:127 
  
  [155] MediaSource is open! Debug.js:127 
  
  [156] Duration successfully set to: 96.4 Debug.js:127 
  
  [157] Added 0 inline events Debug.js:127 
  
  [158] video codec: video/mp4;codecs="avc1.640028" Stream.js:225 
  
  Uncaught TypeError: Cannot read property 'type' of null
  
      at z (Stream.js:225)
  
      at C (Stream.js:285)
  
      at D (Stream.js:373)
  
      at E (Stream.js:398)
  
      at Object.d [as activate] (Stream.js:107)
  
      at y (StreamController.js:363)
  
      at MediaSource.c (StreamController.js:342)

  then it fails to playback...

  Is it because I didn’t set the parameters right on ffmpeg or this is a bug in dash.js ?

  I really stuck here !

• Panasonc GH5 4K 10 Bit 25p (cannot allocate memory)

  25 novembre 2017, par Sebastian

  I am converting GH5 files with the following script. With my Notebook I get no error and it goes through but at my desktop workstation I get this error. Anybody an idea. I convert 4K 10Bit Panasonic GH5 files to AVID HQX files. No error at the notebook but the desktop pc produces this error message. OS is windows 7 just new installed because of this. Same MeGUI and FFMPEG version and development server.

  enter code here

  D:\Test>for %f in (*.mov) do "C:\Program Files (x86)\MeGUI\tools\ffmpeg\ffmpeg.e
  
  xe" -i "%~f" -c:a pcm_s16le -c:v dnxhd -profile:v dnxhr_hqx "%~nf_test.mov"
  
  
  
  D:\Test>"C:\Program Files (x86)\MeGUI\tools\ffmpeg\ffmpeg.exe" -i "P1011064.MOV"
  
   -c:a pcm_s16le -c:v dnxhd -profile:v dnxhr_hqx "P1011064_test.mov"
  
  ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.2.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --e
  
  nable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libblur
  
  ay --enable-libfreetype --enable-libmp3lame --enable-libopenjpeg --enable-libopu
  
  s --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --ena
  
  ble-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-lib
  
  x264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-z
  
  lib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-cuda --enable-c
  
  uvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-l
  
  ibmfx
  
    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
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 005a7860] decoding for stream 0 failed
  
  Guessed Channel Layout for Input Stream #0.1 : stereo
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'P1011064.MOV':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537986816
  
      compatible_brands: qt  pana
  
      creation_time   : 2017-11-19T16:16:23.000000Z
  
      com.panasonic.Semi-Pro.metadata.xml: <?xml version="1.0" encoding="UTF-8" st
  
  andalone="no" ?>
  
                      : <clipmain xmlns="urn:schemas-Professional-Plug-in:Semi-Pro:ClipMetadata:v1.0">
  
                      :   <clipcontent>
  
                      :     <globalclipid>060A2B340101010501010D2113000000171BA845
  
  E82C2C3470010E90B8D50052</globalclipid>
  
                      :     <duration>84</duration>
  
                      :     <editunit>1/25</editunit>
  
                      :     <essencelist>
  
                      :       <video>
  
                      :         <codec bitrate="150">H264_422_LongGOP</codec>
  
                      :         <activeline>2160</activeline>
  
                      :         <activepixel>3840</activepixel>
  
                      :         <bitdepth>10</bitdepth>
  
                      :         <framerate>25p</framerate>
  
                      :         <timecodetype>NonDrop</timecodetype>
  
                      :         <starttimecode>07:12:44:18</starttimecode>
  
                      :       </video>
  
                      :       <audio>
  
                      :         <channel>2</channel>
  
                      :         <samplingrate>48000</samplingrate>
  
                      :         <bitspersample>16</bitspersample>
  
                      :       </audio>
  
                      :     </essencelist>
  
                      :     <clipmetadata>
  
                      :       <rating>0</rating>
  
                      :       <access>
  
                      :         <creationdate>2017-11-19T16:16:23+02:00
  
                      :         <lastupdatedate>2017-11-19T16:16:23+02:00
  
                      :       </lastupdatedate></creationdate></access>
  
                      :       <device>
  
                      :         <manufacturer>Panasonic</manufacturer>
  
                      :         <modelname>DC-GH5</modelname>
  
                      :       </device>
  
                      :       <shoot>
  
                      :         <startdate>2017-11-19T16:16:23+02:00</startdate>
  
                      :       </shoot>
  
                      :     </clipmetadata>
  
                      :   </clipcontent>
  
                      :   <userarea>
  
                      :     <acquisitionmetadata xmlns="urn:schemas-Professional-P
  
  lug-in:P2:CameraMetadata:v1.2">
  
                      :       <cameraunitmetadata>
  
                      :         <gamma>
  
                      :           <capturegamma>CINELIKE_D</capturegamma>
  
                      :         </gamma>
  
                      :         <gamut>
  
                      :           <capturegamut>BT.709</capturegamut>
  
                      :         </gamut>
  
                      :       </cameraunitmetadata>
  
                      :     </acquisitionmetadata>
  
                      :   </userarea>
  
                      : </clipmain>
  
                      :
  
    Duration: 00:00:03.36, start: 0.000000, bitrate: 174710 kb/s
  
      Stream #0:0(und): Video: h264 (High 4:2:2) (avc1 / 0x31637661), yuv422p10le(
  
  tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 147582 kb/s, 25 fps, 25 tbr, 90k tbn,
  
  50 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-11-19T16:16:23.000000Z
  
        timecode        : 07:12:44:18
  
      Stream #0:1(und): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, stereo, s1
  
  6, 1536 kb/s (default)
  
      Metadata:
  
        creation_time   : 2017-11-19T16:16:23.000000Z
  
        timecode        : 07:12:44:18
  
      Stream #0:2(und): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2017-11-19T16:16:23.000000Z
  
        timecode        : 07:12:44:18
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> dnxhd (native))
  
    Stream #0:1 -> #0:1 (pcm_s16be (native) -> pcm_s16le (native))
  
  Press [q] to stop, [?] for help
  
  [dnxhd @ 0542fe60] Cannot allocate memory.
  
  [dnxhd @ 04d508a0] ff_frame_thread_encoder_init failed
  
  Error initializing output stream 0:0 -- Error while opening encoder for output s
  
  tream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  Conversion failed!
  
  
  
  D:\Test>pause
  
  Drücken Sie eine beliebige Taste . . .

• av_format/hlsenc : fix %v handling by format_name function

  17 juin 2019, par Bodecs Bela

  av_format/hlsenc : fix %v handling by format_name function
  Hi All,
  When multiple variant streams are specified by var_stream_map option, %v
  
  placeholder in various names ensures that each variant has its unique
  
  names. Most of %v handlng is done in format_name function. Currently
  
  in this function the result buffer is the same as the
  
  input pattern buffer, so you must allocate it before calling format_name
  
  function. It also means, that it is silently assumed that the result
  
  string will NOT be
  
  longer that the pattern string. It is true most of the time, because %v
  
  may appear only once in the pattern string and number of variant streams
  
  is less than 100 in practical cases. But theoretically it will fail if
  
  specified number of variant streams is greater than 100 (i.e. longer
  
  than 2 digits).
  
  This patch fixes this behaviour by altering format_name function to
  
  allocate the
  
  result buffer and return it to the caller.
  Please, review this patch.
  best,
  Bela
  
  >From 6377ebee8a106a9684d41b270c7d6c8e57cd3e7b Mon Sep 17 00:00:00 2001
  
  From : Bela Bodecs <bodecsb@vivanet.hu>
  
  Date : Mon, 17 Jun 2019 14:31:36 +0200
  
  Subject : [PATCH] av_format/hlsenc : fix %v handling by format_name function
  When multiple variant streams are specified by var_stream_map option, %v
  
  placeholder in various names ensures that each variant has its unique
  
  names. Most of %v handlng is done in format_name function. Currently
  
  in this function the result buffer is the same as the input pattern
  
  buffer, so you must allocate it before calling format_name function. It
  
  also means, that it is silently assumed that the result string will NOT
  
  be longer that the pattern string. It is true most of the time, because
  
  %v may appear only once in the pattern string and number of variant
  
  streams is less than 100 in practical cases. But theoretically it will
  
  fail if specified number of variant streams is greater than 100. This
  
  patch fixes this behaviour by altering format_name function to allocate
  
  the result buffer and return it to the caller.
  Signed-off-by : Bela Bodecs <bodecsb@vivanet.hu>
  

  • [DH] libavformat/hlsenc.c