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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (10443)

  • How can we achieve textAlign="center" within box in case of multiline text using ffmpeg drawtext ? [closed]

    13 septembre 2024, par Ata MuhiUlDin

    When working with drawtext in ffmpeg, it allows to enable box to show behind the text, and also allows to assign some background color to it.

    


    But when it comes to multiline text, let's say there are three lines as shown in picture as current result :

    


    current results

    


    It never align text to center. But I want results like shown below :

    


    Required Output

    


    This time am using following ffmpeg command to draw text :

    


    -vf "drawtext=text='${text}': x=((w*${x})/${DIMENSIONS.width}): y=((h*${y})/${DIMENSIONS.height}):fontsize=36:fontcolor=yellow@0.9: box=1: boxcolor=black@0.6:boxborderw=20" -c:a copy

    


  • Unable to set "stream-number" pad property of mpegtsmux

    8 novembre 2024, par TishSerg

    Accroding to gst-inspect-1.0 mpegtsmux, mpegtsmux's sink pads have writable stream-number property :

    


    ...
Pad Templates:
  SINK template: 'sink_%d'
    Availability: On request
    Capabilities:
      ...
    Type: GstBaseTsMuxPad
    Pad Properties:
      ...

      stream-number       : stream number
                            flags: readable, writable
                            Integer. Range: 0 - 31 Default: 0


    


    But when I try to set it, GStreamer says there's no such property. The following listing shows I can run multi-stream pipeline without setting that property, but when I add that property it doesn't work.

    


    PS C:\gstreamer\1.0\msvc_x86_64\bin> ./gst-launch-1.0 mpegtsmux name=mux ! udpsink host=192.168.144.255 port=5600 sync=no `
>> videotestsrc is-live=true pattern=ball ! "video/x-raw, width=1920, height=1080, profile=main" ! x264enc ! mux.sink_300 `
>> videotestsrc is-live=true ! "video/x-raw, width=720, height=576" ! x264enc ! mux.sink_301
Use Windows high-resolution clock, precision: 1 ms
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
Redistribute latency...
Redistribute latency...
handling interrupt.9.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:03.773243400
Setting pipeline to NULL ...
Freeing pipeline ...
PS C:\gstreamer\1.0\msvc_x86_64\bin> ./gst-launch-1.0 mpegtsmux name=mux sink_300::stream-number=1 ! udpsink host=192.168.144.255 port=5600 sync=no `
>> videotestsrc is-live=true pattern=ball ! "video/x-raw, width=1920, height=1080, profile=main" ! x264enc ! mux.sink_300 `
>> videotestsrc is-live=true ! "video/x-raw, width=720, height=576" ! x264enc ! mux.sink_301
WARNING: erroneous pipeline: no property "sink_300::stream-number" in element "mpegtsmux"
PS C:\gstreamer\1.0\msvc_x86_64\bin> .\gst-launch-1.0.exe --version
gst-launch-1.0 version 1.24.8
GStreamer 1.24.8
Unknown package origin
PS C:\gstreamer\1.0\msvc_x86_64\bin> .\gst-launch-1.0.exe --version
gst-launch-1.0 version 1.24.9
GStreamer 1.24.9
Unknown package origin
PS C:\gstreamer\1.0\msvc_x86_64\bin> ./gst-launch-1.0 mpegtsmux name=mux sink_300::stream-number=1 ! udpsink host=192.168.144.255 port=5600 sync=no `
>> videotestsrc is-live=true pattern=ball ! "video/x-raw, width=1920, height=1080, profile=main" ! x264enc ! mux.sink_300 `
>> videotestsrc is-live=true ! "video/x-raw, width=720, height=576" ! x264enc ! mux.sink_301
WARNING: erroneous pipeline: no property "sink_300::stream-number" in element "mpegtsmux"


    


    I even updated GStreamer, but still no luck. I tried that because I found news saying there were updates regarding that property :

    


      397 ### MPEG-TS improvements
  398 
  399 -   mpegtsdemux gained support for
  400     -   segment seeking for seamless non-flushing looping, and
  401     -   synchronous KLV
  402 -   mpegtsmux now
  403     -   allows attaching PCR to non-PES streams
  404     -   allows setting of the PES stream number for AAC audio and AVC video streams via a new “stream-number” property on the
  405         muxer sink pads. Currently, the PES stream number is hard-coded to zero for these stream types.


    


    The syntax seems correct (pad_name::pad_prop_name on the element). I ran out of ideas about what I'm doing wrong with that property.

    


    Broader context :

    


    I want to set that property because I want an exact sequence of streams I mixing.

    


    When I feed mpegtsmux with two video streams and one audio stream (from capture devices) without specifying the stream numbers I get them muxed in a random sequence (checking it using ffprobe). Sometimes they are in the desired sequence, but sometimes they aren't. The worst case is when the audio stream is the first stream in the file, so video players get mad when trying to play such .ts file. I have to remux such files using -map key of ffmpeg. If I could set exact stream indices in mpegtsmux (not to be confused with stream PID) I could avoid analyzing actual stream layout and remuxing.

    


    Example of the real layout of the streams (ffprobe output) :

    


    Input #0, mpegts, from '████████████████████████████████████████':
  Duration: 00:20:09.64, start: 3870.816656, bitrate: 6390 kb/s
  Program 1
  Stream #0:2[0x41]: Video: h264 (Baseline) (HDMV / 0x564D4448), yuvj420p(pc, bt709, progressive), 1920x1080, 30 fps, 30 tbr, 90k tbn
  Stream #0:1[0x4b]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, mono, fltp, 130 kb/s
  Program 2
  Stream #0:0[0x42]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(progressive), 720x576, 25 fps, 25 tbr, 90k tbn


    


    You can see 3 streams :

    


      

    • FullHD video with PID 0x41 (defined by me as mpegtsmux0.sink_65) has index 2 while I want it to be 0

      • 


    • PAL video with PID 0x42 (defined by me as mpegtsmux0.sink_66) has index 0 while I want it to be 1

      • 


    • Audio with PID 0x4b (defined by me as mpegtsmux0.sink_75) has index 1 while I want it to be 2

      • 


    


  • GStreamer : How to set "stream-number" pad property of mpegtsmux element ? [closed]

    8 novembre 2024, par TishSerg

    Accroding to gst-inspect-1.0 mpegtsmux, mpegtsmux's sink pads have writable stream-number property :

    


    ...
Pad Templates:
  SINK template: 'sink_%d'
    Availability: On request
    Capabilities:
      ...
    Type: GstBaseTsMuxPad
    Pad Properties:
      ...

      stream-number       : stream number
                            flags: readable, writable
                            Integer. Range: 0 - 31 Default: 0


    


    But when I try to set it, GStreamer says there's no such property. The following listing shows I can run multi-stream pipeline without setting that property, but when I add that property it doesn't work.

    


    PS C:\gstreamer\1.0\msvc_x86_64\bin> ./gst-launch-1.0 mpegtsmux name=mux ! udpsink host=192.168.144.255 port=5600 sync=no `
>> videotestsrc is-live=true pattern=ball ! "video/x-raw, width=1920, height=1080, profile=main" ! x264enc ! mux.sink_300 `
>> videotestsrc is-live=true ! "video/x-raw, width=720, height=576" ! x264enc ! mux.sink_301
Use Windows high-resolution clock, precision: 1 ms
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...
Redistribute latency...
Redistribute latency...
handling interrupt.9.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:03.773243400
Setting pipeline to NULL ...
Freeing pipeline ...
PS C:\gstreamer\1.0\msvc_x86_64\bin> ./gst-launch-1.0 mpegtsmux name=mux sink_300::stream-number=1 ! udpsink host=192.168.144.255 port=5600 sync=no `
>> videotestsrc is-live=true pattern=ball ! "video/x-raw, width=1920, height=1080, profile=main" ! x264enc ! mux.sink_300 `
>> videotestsrc is-live=true ! "video/x-raw, width=720, height=576" ! x264enc ! mux.sink_301
WARNING: erroneous pipeline: no property "sink_300::stream-number" in element "mpegtsmux"
PS C:\gstreamer\1.0\msvc_x86_64\bin> .\gst-launch-1.0.exe --version
gst-launch-1.0 version 1.24.8
GStreamer 1.24.8
Unknown package origin
PS C:\gstreamer\1.0\msvc_x86_64\bin> .\gst-launch-1.0.exe --version
gst-launch-1.0 version 1.24.9
GStreamer 1.24.9
Unknown package origin
PS C:\gstreamer\1.0\msvc_x86_64\bin> ./gst-launch-1.0 mpegtsmux name=mux sink_300::stream-number=1 ! udpsink host=192.168.144.255 port=5600 sync=no `
>> videotestsrc is-live=true pattern=ball ! "video/x-raw, width=1920, height=1080, profile=main" ! x264enc ! mux.sink_300 `
>> videotestsrc is-live=true ! "video/x-raw, width=720, height=576" ! x264enc ! mux.sink_301
WARNING: erroneous pipeline: no property "sink_300::stream-number" in element "mpegtsmux"


    


    I even updated GStreamer, but still no luck. I tried that because I found news saying there were updates regarding that property :

    


      397 ### MPEG-TS improvements
  398 
  399 -   mpegtsdemux gained support for
  400     -   segment seeking for seamless non-flushing looping, and
  401     -   synchronous KLV
  402 -   mpegtsmux now
  403     -   allows attaching PCR to non-PES streams
  404     -   allows setting of the PES stream number for AAC audio and AVC video streams via a new “stream-number” property on the
  405         muxer sink pads. Currently, the PES stream number is hard-coded to zero for these stream types.


    


    The syntax seems correct (pad_name::pad_prop_name on the element). I ran out of ideas about what I'm doing wrong with that property.

    


    Broader context :

    


    I want to set that property because I want an exact sequence of streams I mixing.

    


    When I feed mpegtsmux with two video streams and one audio stream (from capture devices) without specifying the stream numbers I get them muxed in a random sequence (checking it using ffprobe). Sometimes they are in the desired sequence, but sometimes they aren't. The worst case is when the audio stream is the first stream in the file, so video players get mad when trying to play such .ts file. I have to remux such files using -map key of ffmpeg. If I could set exact stream indices in mpegtsmux (not to be confused with stream PID) I could avoid analyzing actual stream layout and remuxing.

    


    Example of the real layout of the streams (ffprobe output) :

    


    Input #0, mpegts, from '████████████████████████████████████████':
  Duration: 00:20:09.64, start: 3870.816656, bitrate: 6390 kb/s
  Program 1
  Stream #0:2[0x41]: Video: h264 (Baseline) (HDMV / 0x564D4448), yuvj420p(pc, bt709, progressive), 1920x1080, 30 fps, 30 tbr, 90k tbn
  Stream #0:1[0x4b]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, mono, fltp, 130 kb/s
  Program 2
  Stream #0:0[0x42]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p(progressive), 720x576, 25 fps, 25 tbr, 90k tbn


    


    You can see 3 streams :

    


      

    • FullHD video with PID 0x41 (defined by me as mpegtsmux0.sink_65) has index 2 while I want it to be 0

      • 


    • PAL video with PID 0x42 (defined by me as mpegtsmux0.sink_66) has index 0 while I want it to be 1

      • 


    • Audio with PID 0x4b (defined by me as mpegtsmux0.sink_75) has index 1 while I want it to be 2

      • 


    


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