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Autres articles (104)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Gestion de la ferme
2 mars 2010, parLa ferme est gérée dans son ensemble par des "super admins".
Certains réglages peuvent être fais afin de réguler les besoins des différents canaux.
Dans un premier temps il utilise le plugin "Gestion de mutualisation"
Sur d’autres sites (6701)
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Shaka Player : ignore empty AdaptationSet
24 juin 2019, par MityaI’m trying to play DASH stream in Shaka Player.
Sometimes the stream doesn’t have an audio source and its manifest file contains an emptyAdaptationSetentry.
In this case Shaka Player returns the manifest parsing error :| DASH_EMPTY_ADAPTATION_SET | 4003 | number | The DASH Manifest contained an AdaptationSet with no Representations. |Is it possible to ignore this error somehow and play the video without audio source ?
Example of manifest file :
<?xml version="1.0" encoding="utf-8"?>
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="dynamic" minimumupdateperiod="PT4S" suggestedpresentationdelay="PT4S" availabilitystarttime="2019-06-24T13:38:04Z" publishtime="2019-06-24T13:38:34Z" timeshiftbufferdepth="PT14.9S" minbuffertime="PT9.9S">
<programinformation>
</programinformation>
<period start="PT0.0S">
<adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true">
<representation mimetype="video/mp4" codecs="avc1.640028" bandwidth="2000000" width="1920" height="1080" framerate="20/1">
<segmenttemplate timescale="10240" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="5">
<segmenttimeline>
<s t="201697" d="51190" r="2"></s>
</segmenttimeline>
</segmenttemplate>
</representation>
</adaptationset>
<adaptationset contenttype="audio" segmentalignment="true" bitstreamswitching="true">
</adaptationset>
</period>
</mpd> -
Using ffmpeg to generate dash manifest and it cannot be played by dash.js
18 mars 2019, par PunkheadI’m using ffmpeg to encode incoming stream via rtmp protocol, the code as following :
ffmpeg -re -i rtmp://localhost:1935${StreamPath} -use_timeline 1 /
-use_template 1 -window_size 10 -min_seg_duration 5000 -f dash out.mpdThe manifest looks like this :
<?xml version="1.0" encoding="utf-8"?>
<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="static" mediapresentationduration="PT1M36.4S" minbuffertime="PT8.3S">
<programinformation>
</programinformation>
<period start="PT0.0S">
<adaptationset contenttype="video" segmentalignment="true" bitstreamswitching="true" framerate="30/1">
<representation mimetype="video/mp4" codecs="avc1.640028" width="1920" height="1080" framerate="30/1">
<segmenttemplate timescale="15360" initialization="init-stream$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 !
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Panasonc GH5 4K 10 Bit 25p (cannot allocate memory)
25 novembre 2017, par SebastianI 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 hereD:\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
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