Den 18.06.2025 22:17, skrev Andrew Randrianasulu:

ср, 18 июн. 2025 г., 23:13 Terje J. Hanssen via Cin <cin@lists.cinelerra-gg.org>:

I tried CinGG-20250430-x86_64.AppImage to record HDV cam Live video connected via IEEE-1394 (Sony iLink, Firewire) using the iec61883 driver.

"For the IEC 61883 driver, the compression must be DV."

I think HDV (mpeg2) was never implemented there?

I noticed "must be DV", but was not sure how literal "DV" was meant(?)

According to the ffmpeg man page for iec61883:
The iec61883 capture device supports capturing from a video device connected via IEEE1394 (FireWire), using libiec61883 and the new Linux FireWire stack (juju). This is the default DV/HDV input method in Linux Kernel 2.6.37 and later, since the old FireWire stack was removed.
Specify the FireWire port to be used as input file, or "auto" to choose the first port connected.
https://www.mankier.com/1/ffmpeg-devices#Input_Devices-iec61883

Kernel 2.6.37 was released in Jan 2011.
And according to Phoronix:Linux Has A New Firewire IEEE-1394 Maintainer - Intends To Maintain Support To 2029
https://www.phoronix.com/news/Linux-Firewire-New-Maintainer

I am not sure if I can do anything even if changes very simple - I have no such hardware.....

Yeah, I understand that will be difficult.
My legacy SuperMicro workstation had a Firewire port on its front panel, which now is working with a
Texas Instruments XIO2200A IEEE-1394a-2000 Controller (pci) mounted on the MSI mobo.

libIEC 61883 has not been enabled on my system ffmpeg-7, but recently I got this bug accepted by OBS, and iec61883 is just enabled in Factory.
So when it is available for Slowroll, I will try recording with ffmpeg.

According to the manual:
The file format must be Quicktime for Linux and video recording must be enabled for it. Click on the wrench to set the video compression.
For the IEC 61883 driver, the compression must be DV.
https://cinelerra-gg.org/download/CinelerraGG_Manual/Live_Video.html

So I tried first
Shift-P
FFMPEG and qt, mp4 audio and dv_pal.qt video

I also tried
FFMPEG mpeg, Audio mpeg_mp2, Video mpeg and mpeg_hdv

But got these error messages in both cases using default port 0 or alternative port 1

AVC1394Control::initialize(): couldn't set port: Invalid argument
int FFMPEG::init_encoder(const char*):
bad file format: /home/terje/test.mpeg

rom1394_0 warning: read failed: 0x0000fffff0000414
AVC1394Control::initialize(): node 0
int FFMPEG::init_encoder(const char*):
bad file format: /home/terje/test.mpeg

A control test of the connection with the legacy 'dvgrab' recorded a m2t file ok.

Related references:
https://www.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blob;f=cinelerra-5.1/cinelerra/avc1394control.C;h=dfde60d96fecf935c89fb7cfd5b766d1f4d9914f;hb=HEAD
https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg05661.html
https://www.ffmpeg.org/ffmpeg-devices.html#iec61883

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