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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (48)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community. -
Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)
Sur d’autres sites (9636)
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Sharing sound through port
29 mars 2016, par Piotr PasichI’m a newbie with
ffmpeg. What I’m going to achieve is to share the sound from sound card through the port 8000 to some other computers. But this doesn’t work. Can somebody explain me why and how to make it work ?ffmpeg -f alsa -i hw:0,1 -acodec libmp3lame -ab 640k -ac 1 -f rtp -re rtp://192.168.0.10:8000Cheers
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How can record music playing on headphone ?
27 avril 2022, par showkeyList all the cards in my pc :


pacmd list-cards 
2 card(s) available.
 index: 1
 name: 
 driver: 
 owner module: 7
 properties:
 alsa.card = "0"
 alsa.card_name = "HD-Audio Generic"
 alsa.long_card_name = "HD-Audio Generic at 0xfccc8000 irq 59"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:09:00.1"
 sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:09:00.1/sound/card0"
 device.bus = "pci"
 device.vendor.id = "1002"
 device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
 device.product.id = "15de"
 device.product.name = "Raven/Raven2/Fenghuang HDMI/DP Audio Controller"
 device.string = "0"
 device.description = "Raven/Raven2/Fenghuang HDMI/DP Audio Controller"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 profiles:
 output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
 output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
 output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
 output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
 output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
 output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
 output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
 output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
 output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
 off: Off (priority 0, available: unknown)
 active profile: <off>
 ports:
 hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
 properties:
 device.icon_name = "video-display"
 hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
 properties:
 device.icon_name = "video-display"
 hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
 properties:
 device.icon_name = "video-display"
 index: 2
 name: 
 driver: 
 owner module: 8
 properties:
 alsa.card = "2"
 alsa.card_name = "HD-Audio Generic"
 alsa.long_card_name = "HD-Audio Generic at 0xfccc0000 irq 60"
 alsa.driver_name = "snd_hda_intel"
 device.bus_path = "pci-0000:09:00.6"
 sysfs.path = "/devices/pci0000:00/0000:00:08.1/0000:09:00.6/sound/card2"
 device.bus = "pci"
 device.vendor.id = "1022"
 device.vendor.name = "Advanced Micro Devices, Inc. [AMD]"
 device.product.id = "15e3"
 device.product.name = "Family 17h (Models 10h-1fh) HD Audio Controller"
 device.string = "2"
 device.description = "Family 17h (Models 10h-1fh) HD Audio Controller"
 module-udev-detect.discovered = "1"
 device.icon_name = "audio-card-pci"
 profiles:
 input:analog-stereo: Analog Stereo Input (priority 65, available: no)
 output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
 output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: no)
 output:analog-surround-40: Analog Surround 4.0 Output (priority 1200, available: unknown)
 output:analog-surround-40+input:analog-stereo: Analog Surround 4.0 Output + Analog Stereo Input (priority 1265, available: no)
 output:analog-surround-51: Analog Surround 5.1 Output (priority 1300, available: unknown)
 output:analog-surround-51+input:analog-stereo: Analog Surround 5.1 Output + Analog Stereo Input (priority 1365, available: no)
 output:iec958-stereo: Digital Stereo (IEC958) Output (priority 5500, available: unknown)
 output:iec958-stereo+input:analog-stereo: Digital Stereo (IEC958) Output + Analog Stereo Input (priority 5565, available: no)
 output:iec958-ac3-surround-51: Digital Surround 5.1 (IEC958/AC3) Output (priority 300, available: unknown)
 output:iec958-ac3-surround-51+input:analog-stereo: Digital Surround 5.1 (IEC958/AC3) Output + Analog Stereo Input (priority 365, available: no)
 off: Off (priority 0, available: unknown)
 active profile: 
 sinks:
 alsa_output.pci-0000_09_00.6.analog-stereo/#0: Family 17h (Models 10h-1fh) HD Audio Controller Analog Stereo
 sources:
 alsa_output.pci-0000_09_00.6.analog-stereo.monitor/#1: Monitor of Family 17h (Models 10h-1fh) HD Audio Controller Analog Stereo
 ports:
 analog-input-front-mic: Front Microphone (priority 8500, latency offset 0 usec, available: no)
 properties:
 device.icon_name = "audio-input-microphone"
 analog-input-rear-mic: Rear Microphone (priority 8200, latency offset 0 usec, available: no)
 properties:
 device.icon_name = "audio-input-microphone"
 analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)
 properties:
 
 analog-output-lineout: Line Out (priority 9000, latency offset 0 usec, available: yes)
 properties:
 
 analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: yes)
 properties:
 device.icon_name = "audio-headphones"
 iec958-stereo-output: Digital Output (S/PDIF) (priority 0, latency offset 0 usec, available: unknown)
 properties:
</off>

Playing a music on speaker,record it with ffmpeg and save as
music.mp3in current directory.

device_speaker="alsa_output.pci-0000_09_00.6.analog-stereo.monitor"
ffmpeg -f pulse -i $device_speaker music.mp3


I turn off the speaker and play the music on my headphone,how can record it with ffmpeg ?


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fixing (with ffmpeg) the chrominance position on a video after capturing
23 mai 2016, par APLUI’m trying to convert some video from VHS to digital using an (old) video capture card (and obviously an old VHS player). Due to the input from my video capture card and the output available from the VHS, I have no other choice than capture with an S-Video cable to a computer.
Almost everything works except a little mis-synchronization between chroma and luma which do not happen on TV.
For example, in the original video, I have something like that :
After capturing the video looks like this :
As you may see, there is a little desynchronization of the chroma with the luma channel (I will say about 10 lines errors).
I’m capturing with ffmpeg on a Linux system with the following commands :
$ v4lctl setnorm PAL-BG
$ v4lctl setinput S-video
$ ffmpeg -y -f alsa -ac 2 -i pulse -f video4linux2 -i /dev/video0 -c:a pcm_s16le -vcodec rawvideo -t $duration -r 25 -loglevel error -stats /tmp/tmp.mkv
I tried other input norm in v4l, tried an other VHS player, tried an other conversion cable from SCART to S-Video but it didn’t change anything,
My question is simple : is there a way to fix this with a post-processing video filter in ffmpeg ?
I already looked at the long list of video filter available in ffmpeg but I didn’t find anything.
Also, please note I can’t apply filter during the capture commands (old capture cards, old cpu, ..), this is why I capture in rawvideo and native audio. When the capture is done I convert the video/audio into h264/vorbis, at this step I can apply as much as audio/video filtering needed (even if it include extracting chroma & luma to new files, fixing and merging again).
Thanks !
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