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MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 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 (...) -
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
Sur d’autres sites (11414)
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ffmpeg recording audio / video sync issues [closed]
1er novembre 2022, par sling jonesI'm using ffmpeg to record NTSC analog video on Linux Fedora 36 using a Blackmagic Intensity Pro 4K for video and a Scarlett 2i2 for audio. I'm using a TBC to avoid dropped frames and to ensure a constant S-Video Y/C framerate on the analog end.


The problem I'm running into is that on playback the audio will start out relatively in sync with the video at the beginning of the captured file but will eventually run ahead of the video eventually becoming many seconds off.


Nothing I do seems to change this or change the degree to which it happens. The audio and video stay in sync throughout the entire video as I'm monitoring the source so I don't understand how they can diverge so much once encoded into a digital file ?


Here is the command I am using :


ffmpeg -hwaccel cuda -fflags +igndts -format_code ntsc -f decklink -raw_format auto -vsync passthrough -rtbufsize 1500M -thread_queue_size 512 -i 'Intensity Pro 4K' -f pulse -rtbufsize 500M -thread_queue_size 512 -i 'Scarlett 2i2 Camera Analog Stereo' -c copy -map 0:1 -map 1:0 "/tmp/ffmpeg-raw/file-raw.avi"


here's the ffprobe output from one of my files :


Input #0, avi, from 'test2-raw.avi':
 Metadata:
 software : Lavf59.33.100
 Duration: 00:11:42.87, start: 0.000000, bitrate: 169341 kb/s
 Stream #0:0: Video: rawvideo (UYVY / 0x59565955), uyvy422, 720x486, 167801 kb/s, 59.94 fps, 59.94 tbr, 59.94 tbn
 Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s



As you can see in my code snippet, I've been throwing things at the wall for a bit. I've tried different rtbufsizes, adding -copyts, and going through the different -vsync options. I've tried it with and without hardware acceleration ( I do have a NVIDIA card), +igdts did get rid of a warning but did not help with the sync, as did changing the thread queue sizes.


OBS can do this, why can't I ?


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Converting a spesific audio sream and copy the rest
15 mai 2022, par AreteIs it possible to convert one of the audio tracks in a video file to a different format while copying/remuxing the other audio tracks in the file with FFmpeg ?


More specifically, is it possible to do this without explicitly specify all the audio tracks you want to keep ?


I have tried using the -map function,


ffmpeg -i INPUT -c:v copy -c:a libfdk_aac -map 1:a:2 OUTPUT.mkv


but this only encodes the first audio track and excludes the rest. I know I can probably explicitly tell FFmpeg to mux all the rest of the audio tracks, but this is really tedious. It means I will have to count every audio track and write e considerably longer command.


Is there not a way to tell FFmpeg "convert audio track X and copy the rest" ?


Here is the MediaInfo of the file. Note that there are over 10 audio tracks but I have excluded them in this example to keep it simple.


Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : 36
Duration : 2 h 30 min
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : Display P3
Mastering display luminance : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level : 349 cd/m2
Maximum Frame-Average Light Level : 86 cd/m2

Audio #1
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : DTS XLL
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Muxing mode : Stream extension
Codec ID : 134
Duration : 2 h 30 min
Bit rate mode : Variable
Channel(s) : 6 channels
Channel layout : C L R Ls Rs LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossless

Audio #2
ID : 4353 (0x1101)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 2 h 30 min
Bit rate mode : Constant
Bit rate : 640 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -9 ms
Stream size : 687 MiB (1%)
Service kind : Complete Main

Audio #3
ID : 4354 (0x1102)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 2 h 30 min
Bit rate mode : Constant
Bit rate : 448 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -9 ms
Stream size : 481 MiB (1%)
Service kind : Complete Main


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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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