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<div class="moz-cite-prefix">Den 20.06.2025 00:43, skrev Andrew
Randrianasulu:<br>
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<div dir="ltr" class="gmail_attr">пт, 20 июн. 2025 г., 01:25
Terje J. Hanssen <<a
href="mailto:terjejhanssen@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">terjejhanssen@gmail.com</a>>:<br>
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<div>On 19.06.2025 12:43, Terje J. Hanssen wrote:<br>
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<div>Den 18.06.2025 22:17, skrev Andrew Randrianasulu:<br>
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<div dir="ltr" class="gmail_attr">ср, 18 июн.
2025 г., 23:13 Terje J. Hanssen via Cin <<a
href="mailto:cin@lists.cinelerra-gg.org"
target="_blank" rel="noreferrer"
moz-do-not-send="true"
class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
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<div> I tried CinGG-20250430-x86_64.AppImage
to record HDV cam Live video connected via
IEEE-1394 (Sony iLink, Firewire) using the
iec61883 driver.<br>
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<div dir="auto"><span style="font-size:15px">"For
the </span><span style="font-size:15px">IEC
61883</span><span style="font-size:15px"> driver,
the compression must be </span><span
style="font-size:15px">DV</span><span
style="font-size:15px">."</span></div>
<div dir="auto"><span style="font-size:15px">I
think HDV (mpeg2) was never implemented there?</span></div>
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<br>
I noticed "must be DV", but was not sure how literal
"DV" was meant(?)<br>
<br>
According to the ffmpeg man page for iec61883:<br>
<i>The iec61883 capture device supports capturing from
a video device connected via IEEE1394 (FireWire),
using <b>libiec61883 </b>and the new Linux
FireWire stack (juju). This is the <b>default
DV/HDV input method</b> in Linux Kernel 2.6.37 and
later, since the old FireWire stack was removed.<br>
Specify the FireWire port to be used as input file,
or "auto" to choose the first port connected.<br>
</i><a
href="https://www.mankier.com/1/ffmpeg-devices#Input_Devices-iec61883"
target="_blank" rel="noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.mankier.com/1/ffmpeg-devices#Input_Devices-iec61883</a><i><br>
<br>
</i>Kernel 2.6.37 was released in Jan 2011.<br>
And according to Phoronix:Linux Has A New Firewire
IEEE-1394 Maintainer - Intends To Maintain Support To
2029<i><br>
</i><a
href="https://www.phoronix.com/news/Linux-Firewire-New-Maintainer"
target="_blank" rel="noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.phoronix.com/news/Linux-Firewire-New-Maintainer</a><i><br>
</i><br>
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<div dir="auto"><span style="font-size:15px">I am
not sure if I can do anything even if changes
very simple - I have no such hardware.....</span></div>
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<br>
Yeah, I understand that will be difficult. <br>
My legacy SuperMicro workstation had a Firewire port
on its front panel, which now is working with a <br>
Texas Instruments XIO2200A IEEE-1394a-2000 Controller
(pci) mounted on the MSI mobo.<br>
<br>
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.<br>
So when it is available for Slowroll, I will try
recording with ffmpeg.<br>
<br>
<blockquote type="cite">
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<div dir="auto"> <br>
According to the manual:<br>
<small>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. </small> <br>
<small>For the <span>IEC 61883</span> driver,
the compression must be <span>DV</span>.</small><br>
<a
href="https://cinelerra-gg.org/download/CinelerraGG_Manual/Live_Video.html"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://cinelerra-gg.org/download/CinelerraGG_Manual/Live_Video.html</a><br>
<br>
So I tried first <br>
Shift-P<br>
FFMPEG and qt, mp4 audio and dv_pal.qt video<br>
<br>
I also tried <br>
FFMPEG mpeg, Audio mpeg_mp2, Video mpeg and
mpeg_hdv<br>
<br>
But got these error messages in both cases using
default port 0 or alternative port 1<br>
<br>
<b>AVC1394Control::initialize(): couldn't set
port: Invalid argument </b><br>
int FFMPEG::init_encoder(const char*): <br>
bad file format: /home/terje/test.mpeg <br>
<br>
rom1394_0 warning: read failed:
0x0000fffff0000414 <br>
AVC1394Control::initialize(): node 0 <br>
int FFMPEG::init_encoder(const char*): <br>
bad file format: /home/terje/test.mpeg <br>
<br>
A control test of the connection with the legacy
'dvgrab' recorded a m2t file ok.<br>
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<br>
Add here that dvgrab 3.5 was released 07.09.2009<br>
This version automatically detects when your device is
DV or HDV so you do not have to remember to supply "-f
hdv." <br>
<a
href="https://github.com/ddennedy/dvgrab/blob/master/NEWS"
target="_blank" rel="noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://github.com/ddennedy/dvgrab/blob/master/NEWS</a><br>
* Automatically detect DV vs. HDV when not using -noavc,
-input, or -stdin.<br>
* Now waits indefinitely for DV or HDV instead of giving
up after 10 seconds.<br>
* Bugfixes<br>
<br>
<br>
Repeat here my short dvgrab test on Leap 15.6, which
also has a possible related "libiec61883 error: Failed
to get channels available."<br>
Yet, robust and worked as follows:<br>
<br>
dvgrab -size 0 -autosplit<br>
Found AV/C device with GUID 0x0800460104db475b<br>
libiec61883 error: Failed to get channels available.<br>
Waiting for HDV...<br>
Capture Started<br>
^C"dvgrab-001.m2t": 344.78 MiB 2764 frames timecode
45:85:85.45 date 2025.06.19 22:37:52<br>
Capture Stopped<br>
<br>
<br>
ffprobe -hide_banner dvgrab-001.m2t<br>
[mpeg2video @ 0x55dc29972d80] Invalid frame dimensions
0x0.<br>
Last message repeated 7 times<br>
[mpegts @ 0x55dc2996d740] Could not find codec
parameters for stream 2 (Unknown: none ([160][0][0][0] /
0x00A0)): unknown codec<br>
Consider increasing the value for the 'analyzeduration'
(0) and 'probesize' (5000000) options<br>
[mpegts @ 0x55dc2996d740] Could not find codec
parameters for stream 3 (Unknown: none ([161][0][0][0] /
0x00A1)): unknown codec<br>
Consider increasing the value for the 'analyzeduration'
(0) and 'probesize' (5000000) options<br>
Input #0, mpegts, from 'dvgrab-001.m2t':<br>
Duration: 00:01:50.82, start: 627.021311, bitrate:
26099 kb/s<br>
Program 100 <br>
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<br>
Side data:<br>
cpb: bitrate max/min/avg: 25000000/0/0 buffer
size: 7340032 vbv_delay: N/A<br>
Stream #0:1[0x814]: Audio: mp2 (mp3float)
([3][0][0][0] / 0x0003), 48000 Hz, stereo, fltp, 384
kb/s<br>
Stream #0:2[0x815]: Unknown: none ([160][0][0][0] /
0x00A0)<br>
Stream #0:3[0x811]: Unknown: none ([161][0][0][0] /
0x00A1)<br>
Unsupported codec with id 0 for input stream 2<br>
Unsupported codec with id 0 for input stream 3<br>
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<div dir="auto">good to know, at least kernel part is working ok
then.</div>
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<br>
<font face="Courier New, Courier, monospace">localhost:~ # lsmod |
grep -E -i "(1394|firewire)"<br>
firewire_ohci 73728 0<br>
firewire_core 245760 1 firewire_ohci<br>
crc_itu_t 12288 1 firewire_core</font><br>
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<blockquote type="cite"
cite="mid:CA+rFky4wsdv0xdKG49UU1_0Fwe4P+Tzp80j07ArF1344XYTNig@mail.gmail.com">
<div dir="auto">
<div dir="auto"><br>
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<div dir="auto">ffmpeg's interface seems to support both cases,
but demuxing might be a problem for us .. it must be some
cross between iec input and mpeg2/dvb input IMO ...</div>
<div dir="auto"><br>
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<div dir="auto"><a
href="https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavdevice/iec61883.c"
moz-do-not-send="true" class="moz-txt-link-freetext">https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavdevice/iec61883.c</a></div>
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Related references:<br>
<a
href="https://www.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blob;f=cinelerra-5.1/cinelerra/avc1394control.C;h=dfde60d96fecf935c89fb7cfd5b766d1f4d9914f;hb=HEAD"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.cinelerra-gg.org/git/?p=goodguy/cinelerra.git;a=blob;f=cinelerra-5.1/cinelerra/avc1394control.C;h=dfde60d96fecf935c89fb7cfd5b766d1f4d9914f;hb=HEAD</a><br>
<a
href="https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg05661.html"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg05661.html</a><br>
<a
href="https://www.ffmpeg.org/ffmpeg-devices.html#iec61883"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.ffmpeg.org/ffmpeg-devices.html#iec61883</a><br>
<br>
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-- <br>
Cin mailing list<br>
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