On 19.06.2025 12:43, Terje J. Hanssen
wrote:
Den 18.06.2025 22:17, skrev Andrew
Randrianasulu:
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.
Add here that dvgrab 3.5 was released 07.09.2009
This version automatically detects when your device is DV or HDV so
you do not have to remember to supply "-f hdv."
https://github.com/ddennedy/dvgrab/blob/master/NEWS
* Automatically detect DV vs. HDV when not using -noavc, -input, or
-stdin.
* Now waits indefinitely for DV or HDV instead of giving up after 10
seconds.
* Bugfixes
Repeat here my short dvgrab test on Leap 15.6, which also has a
possible related "libiec61883 error: Failed to get channels
available."
Yet, robust and worked as follows:
dvgrab -size 0 -autosplit
Found AV/C device with GUID 0x0800460104db475b
libiec61883 error: Failed to get channels available.
Waiting for HDV...
Capture Started
^C"dvgrab-001.m2t": 344.78 MiB 2764 frames timecode 45:85:85.45
date 2025.06.19 22:37:52
Capture Stopped
ffprobe -hide_banner dvgrab-001.m2t
[mpeg2video @ 0x55dc29972d80] Invalid frame dimensions 0x0.
Last message repeated 7 times
[mpegts @ 0x55dc2996d740] Could not find codec parameters for stream
2 (Unknown: none ([160][0][0][0] / 0x00A0)): unknown codec
Consider increasing the value for the 'analyzeduration' (0) and
'probesize' (5000000) options
[mpegts @ 0x55dc2996d740] Could not find codec parameters for stream
3 (Unknown: none ([161][0][0][0] / 0x00A1)): unknown codec
Consider increasing the value for the 'analyzeduration' (0) and
'probesize' (5000000) options
Input #0, mpegts, from 'dvgrab-001.m2t':
Duration: 00:01:50.82, start: 627.021311, bitrate: 26099 kb/s
Program 100
Stream #0:0[0x810]: Video: mpeg2video (Main) ([2][0][0][0] /
0x0002), yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR
16:9], 25000 kb/s, 25 fps, 25 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 25000000/0/0 buffer size: 7340032
vbv_delay: N/A
Stream #0:1[0x814]: Audio: mp2 (mp3float) ([3][0][0][0] / 0x0003),
48000 Hz, stereo, fltp, 384 kb/s
Stream #0:2[0x815]: Unknown: none ([160][0][0][0] / 0x00A0)
Stream #0:3[0x811]: Unknown: none ([161][0][0][0] / 0x00A1)
Unsupported codec with id 0 for input stream 2
Unsupported codec with id 0 for input stream 3