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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

Sur d’autres sites (6564)

  • Errno 20 Not a directory : 'ffmpeg' WHEN running with systemd

    4 avril 2022, par Ivan Arturo Salazar Ortiz

    Hi guys I have a head ache running this as a service I am really stuck here and have wasted quite the hours here, i am on ubuntu 20 LTS.

    


    I have a celery worker which is waiting for an audio to transform using ffmpeg python library.

    


    If I run it like this :

    


    source venv/bin/activate && Celery -A tasks worker -l info It works without a problem and complete the tasks.

    


    but when I run it as a service in systemd I get this error :

    


    [Errno 20] Not a directory: 'ffmpeg'
                                              Traceback (most recent call last):
                                                File "/home/ubuntu/p1-react-flask-app/app/tasks.py", line 58, in transform_audio_format
                                                  output.run()
                                                File "/home/ubuntu/p1-react-flask-app/app/venv/lib/python3.8/site-packages/ffmpeg/_run.py", line 313, in run
                                                  process = run_async(
                                                File "/home/ubuntu/p1-react-flask-app/app/venv/lib/python3.8/site-packages/ffmpeg/_run.py", line 284, in run_async
                                                  return subprocess.Popen(
                                                File "/usr/lib/python3.8/subprocess.py", line 858, in __init__
                                                  self._execute_child(args, executable, preexec_fn, close_fds,
                                                File "/usr/lib/python3.8/subprocess.py", line 1704, in _execute_child
                                                  raise child_exception_type(errno_num, err_msg, err_filename)
                                              NotADirectoryError: [Errno 20] Not a directory: 'ffmpeg'


    


    I really do not know why and have tried different ways. python os can access the audio folder and files without problem but the problem here, I think, is that my systemd service does not find ffmpeg.exe, but how do I specify it to my service ?

    


    My celery config file :

    


    # The names of the workers. This example create one worker
CELERYD_NODES="worker1"

# The name of the Celery App, should be the same as the python file
# where the Celery tasks are defined
CELERY_APP="tasks"

# Log and PID directories
CELERYD_LOG_FILE="/var/log/celery/%n%I.log"
CELERYD_PID_FILE="/var/run/celery/%n.pid"

# Log level
CELERYD_LOG_LEVEL=INFO

# Path to celery binary, that is in your virtual environment
CELERY_BIN=/home/ubuntu/venv/bin/celery

# Options for Celery Beat
CELERYBEAT_PID_FILE="/var/run/celery/beat.pid"
CELERYBEAT_LOG_FILE="/var/log/celery/beat.log"


    


    my celeryd.service :

    


    [Unit]
Description=Celery Service
After=network.target

[Service]
Type=forking
User=ubuntu
Group=ubuntu
EnvironmentFile=/etc/default/celeryd
WorkingDirectory=/home/ubuntu/p1/app
ExecStart=/bin/sh -c '${CELERY_BIN} multi start ${CELERYD_NODES} \
-A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} \
--logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'
ExecStop=/bin/sh -c '${CELERY_BIN} multi stopwait ${CELERYD_NODES} \
--pidfile=${CELERYD_PID_FILE}'
ExecReload=/bin/sh -c '${CELERY_BIN} multi restart ${CELERYD_NODES} \
-A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} \
--logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'

[Install]
WantedBy=multi-user.target


    


    My python code :

    


    @app.task
def transform_audio_format(url_original,url_destiny):
    input = ffmpeg.input(url_original)
    
    output = ffmpeg.output(input,url_destiny,shell=True)

    output.run()


    


    any help would be appreciated.

    


  • Algorithm when recording SegmentTimeline of MPEG-DASH MPD in shaka packager

    25 mars 2021, par jgkim0518

    I packaged a media stream by mpeg-dash transcoded video at twice the speed and audio at normal speed.
Here is the command :

    


    ffmpeg -re -stream_loop -1 -i timing_logic.mp4 -c:v hevc_nvenc -filter:v "setpts=2*PTS" -c:a libfdk_aac -map 0:v -map 0:a -f mpegts udp://xxx.xxx.xxx.xxx:xxxx?pkt_size=1316


    


    The source information used here is as follows :

    


    Input #0, mpegts, from '/home/test/timing_logic/timing_logic.mp4':
Duration: 00:00:30.22, start: 1.400000, bitrate: 16171 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: hevc (Main 10) (HEVC / 0x43564548), yuv420p10le(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 50 tbc
Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 128 kb/s Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_nvenc))
Stream #0:1 -> #0:1 (mp2 (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A
frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A
Output #0, mpegts, to 'udp://xxx.xxx.xxx.xxx:xxxx?pkt_size=1316':
Metadata:
encoder : Lavf58.45.100
Stream #0:0: Video: hevc (hevc_nvenc) (Main 10), p010le, 3840x2160 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 50 fps, 90k tbn, 50 tbc
Metadata:
encoder : Lavc58.91.100 hevc_nvenc
Side data:
cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: N/A
Stream #0:1(eng): Audio: aac (libfdk_aac), 48000 Hz, stereo, s16, 139 kb/s
Metadata:
encoder : Lavc58.91.100 libfdk_aac


    


    My shaka packager command is :

    


    packager \ 'in=udp://xxx.xxx.xxx.xxx:xxxx,stream=video,init_segment=/home/test/timing_logic/package/video/0/video.mp4,segment_template=/home/test/timing_logic/package/video/0/$Time$.m4s' \
'in=udp://xxx.xxx.xxx.xxx:xxxx,stream=audio,init_segment=/home/test/timing_logic/package/audio/0/audio.mp4,segment_template=/home/test/timing_logic/package/audio/0/$Time$.m4a' \
--segment_duration 5 --fragment_duration 5 --minimum_update_period 5 --min_buffer_time 5 \
--preserved_segments_outside_live_window 24 --time_shift_buffer_depth 40 \
--allow_codec_switching --allow_approximate_segment_timeline --log_file_generation_deletion \
--mpd_output $OUTPUT/$output_mpd.mpd &


    


    Looking at the mpd generated as a result of packaging, the duration of the audio is twice that of the video, and the number of segments is half.
The following is the content of mpd :

    


    &lt;?xml version="1.0" encoding="UTF-8"?>&#xA;&#xA;<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" minbuffertime="PT5S" type="dynamic" publishtime="2021-03-23T10:01:57Z" availabilitystarttime="2021-03-23T09:59:55Z" minimumupdateperiod="PT5S" timeshiftbufferdepth="PT40S">&#xA;<period start="PT0S">&#xA;<adaptationset contenttype="audio" segmentalignment="true">&#xA;<representation bandwidth="140020" codecs="mp4a.40.2" mimetype="audio/mp4" audiosamplingrate="48000">&#xA;<audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>&#xA;<segmenttemplate timescale="90000" initialization="/home/test/timing_logic/package/audio/0/audio.mp4" media="/home/test/timing_logic/package/audio/0/$Time$.m4a" startnumber="16">&#xA;<segmenttimeline>&#xA;<s t="6751436" d="449280"></s>&#xA;<s t="7200716" d="451200"></s>&#xA;<s t="7651916" d="449280"></s>&#xA;<s t="8101196" d="374400"></s>&#xA;<s t="8551196" d="449280"></s>&#xA;<s t="9000476" d="451200"></s>&#xA;<s t="9451674" d="449280"></s>&#xA;<s t="9900956" d="449280"></s>&#xA;<s t="10350236" d="451200"></s>&#xA;<s t="10801434" d="374400"></s>&#xA;</segmenttimeline>&#xA;</segmenttemplate>&#xA;</representation>&#xA;</adaptationset>&#xA;<adaptationset contenttype="video" width="3840" height="2160" framerate="90000/3600" segmentalignment="true" par="16:9">&#xA;<representation bandwidth="1520392" codecs="hvc1.2.4.L153" mimetype="video/mp4" sar="1:1">&#xA;<segmenttemplate timescale="90000" initialization="/home/test/timing_logic/package/video/0/video.mp4" media="/home/test/timing_logic/package/video/0/$Time$.m4s" startnumber="19">&#xA;<segmenttimeline>&#xA;<s t="16954440" d="900000" r="4"></s>&#xA;</segmenttimeline>&#xA;</segmenttemplate>&#xA;</representation>&#xA;</adaptationset>&#xA;</period>&#xA;</mpd>&#xA;

    &#xA;

    When looking at the MPD, it seems that the shaka packager checks the PTS or DTS of the TS when creating a segment and recording the contents of the SegmentTimeline.&#xA;But I couldn't understand even by looking at the MPEG standard documentation and the DASH-IF documentation.

    &#xA;

    My question is whether the packager refers to PTS or DTS when creating a segment.&#xA;How are SegmentTimeline's S@t and S@d recorded ?&#xA;What algorithm is the SegmentTimeline recorded with ? Please help me. Thank you.

    &#xA;

  • Algorithm when recording SegmentTimeline

    24 mars 2021, par jgkim0518

    I packaged a media stream by mpeg-dash transcoded video at twice the speed and audio at normal speed.&#xA;Here is the command :

    &#xA;

    ffmpeg -re -stream_loop -1 -i timing_logic.mp4 -c:v hevc_nvenc -filter:v "setpts=2*PTS" -c:a libfdk_aac -map 0:v -map 0:a -f mpegts udp://xxx.xxx.xxx.xxx:xxxx?pkt_size=1316&#xA;

    &#xA;

    The source information used here is as follows :

    &#xA;

    Input #0, mpegts, from &#x27;/home/test/timing_logic/timing_logic.mp4&#x27;:&#xA;Duration: 00:00:30.22, start: 1.400000, bitrate: 16171 kb/s&#xA;Program 1&#xA;Metadata:&#xA;service_name : Service01&#xA;service_provider: FFmpeg&#xA;Stream #0:0[0x100]: Video: hevc (Main 10) (HEVC / 0x43564548), yuv420p10le(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 50 tbc&#xA;Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 128 kb/s Stream mapping:&#xA;Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_nvenc))&#xA;Stream #0:1 -> #0:1 (mp2 (native) -> aac (libfdk_aac))&#xA;Press [q] to stop, [?] for help&#xA;frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A&#xA;frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A&#xA;Output #0, mpegts, to &#x27;udp://xxx.xxx.xxx.xxx:xxxx?pkt_size=1316&#x27;:&#xA;Metadata:&#xA;encoder : Lavf58.45.100&#xA;Stream #0:0: Video: hevc (hevc_nvenc) (Main 10), p010le, 3840x2160 [SAR 1:1 DAR 16:9], q=-1--1, 2000 kb/s, 50 fps, 90k tbn, 50 tbc&#xA;Metadata:&#xA;encoder : Lavc58.91.100 hevc_nvenc&#xA;Side data:&#xA;cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000 vbv_delay: N/A&#xA;Stream #0:1(eng): Audio: aac (libfdk_aac), 48000 Hz, stereo, s16, 139 kb/s&#xA;Metadata:&#xA;encoder : Lavc58.91.100 libfdk_aac&#xA;

    &#xA;

    My shaka packager command is :

    &#xA;

    packager \ &#x27;in=udp://xxx.xxx.xxx.xxx:xxxx,stream=video,init_segment=/home/test/timing_logic/package/video/0/video.mp4,segment_template=/home/test/timing_logic/package/video/0/$Time$.m4s&#x27; \&#xA;&#x27;in=udp://xxx.xxx.xxx.xxx:xxxx,stream=audio,init_segment=/home/test/timing_logic/package/audio/0/audio.mp4,segment_template=/home/test/timing_logic/package/audio/0/$Time$.m4a&#x27; \&#xA;--segment_duration 5 --fragment_duration 5 --minimum_update_period 5 --min_buffer_time 5 \&#xA;--preserved_segments_outside_live_window 24 --time_shift_buffer_depth 40 \&#xA;--allow_codec_switching --allow_approximate_segment_timeline --log_file_generation_deletion \&#xA;--mpd_output $OUTPUT/$output_mpd.mpd &amp;&#xA;

    &#xA;

    Looking at the mpd generated as a result of packaging, the duration of the audio is twice that of the video, and the number of segments is half.&#xA;The following is the content of mpd :

    &#xA;

    &lt;?xml version="1.0" encoding="UTF-8"?>&#xA;&#xA;<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" minbuffertime="PT5S" type="dynamic" publishtime="2021-03-23T10:01:57Z" availabilitystarttime="2021-03-23T09:59:55Z" minimumupdateperiod="PT5S" timeshiftbufferdepth="PT40S">&#xA;<period start="PT0S">&#xA;<adaptationset contenttype="audio" segmentalignment="true">&#xA;<representation bandwidth="140020" codecs="mp4a.40.2" mimetype="audio/mp4" audiosamplingrate="48000">&#xA;<audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>&#xA;<segmenttemplate timescale="90000" initialization="/home/test/timing_logic/package/audio/0/audio.mp4" media="/home/test/timing_logic/package/audio/0/$Time$.m4a" startnumber="16">&#xA;<segmenttimeline>&#xA;<s t="6751436" d="449280"></s>&#xA;<s t="7200716" d="451200"></s>&#xA;<s t="7651916" d="449280"></s>&#xA;<s t="8101196" d="374400"></s>&#xA;<s t="8551196" d="449280"></s>&#xA;<s t="9000476" d="451200"></s>&#xA;<s t="9451674" d="449280"></s>&#xA;<s t="9900956" d="449280"></s>&#xA;<s t="10350236" d="451200"></s>&#xA;<s t="10801434" d="374400"></s>&#xA;</segmenttimeline>&#xA;</segmenttemplate>&#xA;</representation>&#xA;</adaptationset>&#xA;<adaptationset contenttype="video" width="3840" height="2160" framerate="90000/3600" segmentalignment="true" par="16:9">&#xA;<representation bandwidth="1520392" codecs="hvc1.2.4.L153" mimetype="video/mp4" sar="1:1">&#xA;<segmenttemplate timescale="90000" initialization="/home/test/timing_logic/package/video/0/video.mp4" media="/home/test/timing_logic/package/video/0/$Time$.m4s" startnumber="19">&#xA;<segmenttimeline>&#xA;<s t="16954440" d="900000" r="4"></s>&#xA;</segmenttimeline>&#xA;</segmenttemplate>&#xA;</representation>&#xA;</adaptationset>&#xA;</period>&#xA;</mpd>&#xA;

    &#xA;

    When looking at the MPD, it seems that the shaka packager checks the PTS or DTS of the TS when creating a segment and recording the contents of the SegmentTimeline.&#xA;But I couldn't understand even by looking at the MPEG standard documentation and the DASH-IF documentation.

    &#xA;

    My question is whether the packager refers to PTS or DTS when creating a segment.&#xA;How are SegmentTimeline's S@t and S@d recorded ?&#xA;What algorithm is the SegmentTimeline recorded with ? Please help me. Thank you.

    &#xA;

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