[Cin] Record HDV cam Live video with IEC61883 failed

Fri Jun 20 00:25:40 CEST 2025

On 19.06.2025 12:43, Terje J. Hanssen wrote:
>
>
> Den 18.06.2025 22:17, skrev Andrew Randrianasulu:
>>
>>
>> ср, 18 июн. 2025 г., 23:13 Terje J. Hanssen via Cin 
>> <cin at 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.

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

>>
>>
>> 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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>>     Cin at lists.cinelerra-gg.org
>>     https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>
>
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