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