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<div class="moz-cite-prefix">Den 09.03.2023 09:13, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite"
cite="mid:CA+rFky5e6-nzhtewwvZJhuefFVVCA+BeU9epgedzPA4GP+1hnQ@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт, 9 мар. 2023 г., 11:07
Terje J. Hanssen <<a
href="mailto:terjejhanssen@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">terjejhanssen@gmail.com</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div> <br>
<br>
<div>Den 25.02.2023 21:30, skrev Andrew Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">сб, 25 февр.
2023 г., 23:25 Terje J. Hanssen <<a
href="mailto:terjejhanssen@gmail.com"
target="_blank" rel="noreferrer"
moz-do-not-send="true"
class="moz-txt-link-freetext">terjejhanssen@gmail.com</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div> <br>
<br>
<div>Den 25.02.2023 19:27, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">сб,
25 февр. 2023 г., 21:19 Terje J.
Hanssen via Cin <<a
href="mailto:cin@lists.cinelerra-gg.org"
rel="noreferrer noreferrer"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div> So I have received the
ms2130 HDMI-USB3 capture card.
<br>
The A/D AV converter &
SV-HDMI/adapter is not received
so far, and I have not avialable
my HDV camcorder (on service) to
output HDMI video stream with.<br>
<br>
Yet, I have initially run some
verification tests on the ms2130
HDMI-USB3 UHD capture card
alone, for what they are worth.<br>
<br>
As "UHD" (and/or USB3) is mostly
generic used to identify this
card (while ms2130 almost not),
the some output is piped and
stripped with grep "UHD".<br>
<br>
----------------<br>
<br>
<blockquote>dmesg | grep UHD<br>
[ 2.798210] usb 2-5:
Product: USB3.0 UHD<br>
[ 2.827772] hid-generic
0003:345F:2130.0005:
hiddev97,hidraw4: USB HID
v1.10 Device [MACROSILICON
USB3.0 UHD] on
usb-0000:00:14.0-5/input4<br>
[ 4.805554] usb 2-5: Found
UVC 1.00 device USB3.0 UHD
(345f:2130)<br>
<br>
<br>
udevadm info /dev/video* |
egrep 'DEVNAME|ID_V4L_PRODUCT'<br>
E: DEVNAME=/dev/video0<br>
E: ID_V4L_PRODUCT=USB 2.0
Camera: HD 720P Webcam<br>
E: DEVNAME=/dev/video1<br>
E: ID_V4L_PRODUCT=USB 2.0
Camera: HD 720P Webcam<br>
E: DEVNAME=/dev/video2<br>
E: ID_V4L_PRODUCT=USB3.0 UHD:
USB3.0 UHD<br>
E: DEVNAME=/dev/video3<br>
E: ID_V4L_PRODUCT=USB3.0 UHD:
USB3.0 UHD<br>
<br>
<br>
udevadm info /dev/video* |
egrep UHD<br>
S:
v4l/by-id/usb-MACROSILICON_USB3.0_UHD_20210623-video-index0<br>
E: ID_V4L_PRODUCT=USB3.0 UHD:
USB3.0 UHD<br>
E: ID_MODEL=USB3.0_UHD<br>
E: ID_MODEL_ENC=USB3.0\x20UHD<br>
E:
ID_SERIAL=MACROSILICON_USB3.0_UHD_20210623<br>
E:
DEVLINKS=/dev/v4l/by-id/usb-MACROSILICON_USB3.0_UHD_20210623-video-index0
/dev/v4l/by-path/pci-0000:00:14.0-usb-0:5:1.0-video-index0<br>
S:
v4l/by-id/usb-MACROSILICON_USB3.0_UHD_20210623-video-index1<br>
E: ID_V4L_PRODUCT=USB3.0 UHD:
USB3.0 UHD<br>
E: ID_MODEL=USB3.0_UHD<br>
E: ID_MODEL_ENC=USB3.0\x20UHD<br>
E:
ID_SERIAL=MACROSILICON_USB3.0_UHD_20210623<br>
E:
DEVLINKS=/dev/v4l/by-path/pci-0000:00:14.0-usb-0:5:1.0-video-index1
/dev/v4l/by-id/usb-MACROSILICON_USB3.0_UHD_20210623-video-index1<br>
<br>
<br>
lsusb | grep UHD<br>
Bus 002 Device 004: ID
345f:2130 MACROSILICON USB3.0
UHD<br>
<br>
cat /proc/asound/cards | grep
UHD<br>
2 [UHD ]:
USB-Audio - USB3.0 UHD<br>
MACROSILICON USB3.0 UHD at
usb-0000:00:14.0-5, super
speed<br>
<br>
ll /dev/video*<br>
crw-rw----+ 1 root video 81, 0
feb. 25 14:15 /dev/video0<br>
crw-rw----+ 1 root video 81, 1
feb. 25 14:15 /dev/video1<br>
crw-rw----+ 1 root video 81, 2
feb. 25 14:15 /dev/video2<br>
crw-rw----+ 1 root video 81, 3
feb. 25 14:15 /dev/video3<br>
<br>
---------------------<br>
<br>
v4l2-ctl --list-devices<br>
USB 2.0 Camera: HD 720P Webcam
(usb-0000:00:14.0-11):<br>
/dev/video0<br>
/dev/video1<br>
<br>
USB3.0 UHD: USB3.0 UHD
(usb-0000:00:14.0-5):<br>
/dev/video2<br>
/dev/video3<br>
<br>
-----------<br>
<br>
v4l2-ctl --list-formats-ext<br>
ioctl: VIDIOC_ENUM_FMT<br>
Index : 0<br>
Type : Video
Capture<br>
Pixel Format: 'YUYV'<br>
Name : YUYV
4:2:2<br>
Size: Discrete
640x480<br>
Interval: Discrete 0.030s
(33.000 fps)<br>
Interval: Discrete 0.067s
(15.000 fps)<br>
Size: Discrete
1280x720<br>
Interval: Discrete 0.100s
(10.000 fps)<br>
Size: Discrete
640x360<br>
Interval: Discrete 0.030s
(33.000 fps)<br>
Interval: Discrete 0.067s
(15.000 fps)<br>
................<br>
Index : 1<br>
Type : Video
Capture<br>
Pixel Format: 'MJPG'
(compressed)<br>
Name :
Motion-JPEG<br>
Size: Discrete
640x480<br>
Interval: Discrete 0.030s
(33.000 fps)<br>
Interval: Discrete 0.067s
(15.000 fps)<br>
Size: Discrete
1280x720<br>
Interval: Discrete 0.030s
(33.000 fps)<br>
Interval: Discrete 0.067s
(15.000 fps)<br>
Size: Discrete
640x360<br>
Interval: Discrete 0.030s
(33.000 fps)<br>
Interval: Discrete 0.067s
(15.000 fps)<br>
......................<br>
</blockquote>
<br>
<br>
As the above doesn't list any
1920x1080 resolution, I wonder
if it list just format for the
usb2 webcam and not for ms2130
capture card?<br>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">Yeah, looking at how
webcam listed first it makes sense.
Try to instruct v4l2-ctl to use
another device? (my guess it will be
"-d" switch but I can be wrong! Manyal
or "--help" output is better guide ..)</div>
</div>
</blockquote>
<br>
Be aware that "v4l2-ctl --list-formats-ext"
was the same (I think) as used for the
previous ms2109 Hama card, and I thought
formats for all connected devices were
listed then.<br>
Obviously there is a default (or first
device) used, when no device is specified,
so thank you for the tip.<br>
<br>
By help of google and "superuser" I found
out that actually both "-D -d /dev/video2"
are needed to get both frame sizes and fps
listed:<br>
<br>
<blockquote>v4l2-ctl -D -d /dev/video2
--list-formats-ext<br>
Driver Info (not using libv4l2):<br>
Driver name : uvcvideo<br>
Card type : USB3.0 UHD: USB3.0
UHD<br>
Bus info : usb-0000:00:14.0-5<br>
Driver version: 5.14.21<br>
Capabilities : 0x84A00001<br>
Video Capture<br>
Metadata Capture<br>
Streaming<br>
Extended Pix Format<br>
Device Capabilities<br>
Device Caps : 0x04200001<br>
Video Capture<br>
Streaming<br>
Extended Pix Format<br>
ioctl: VIDIOC_ENUM_FMT<br>
Index : 0<br>
Type : Video Capture<br>
Pixel Format: 'YUYV'<br>
Name : YUYV 4:2:2<br>
Size: Discrete 1920x1080<br>
Interval: Discrete
0.017s (60.000 fps)<br>
Interval: Discrete
0.020s (50.000 fps)<br>
Interval: Discrete
0.033s (30.000 fps)<br>
Interval: Discrete
0.050s (20.000 fps)<br>
Interval: Discrete
0.100s (10.000 fps)<br>
............<br>
<br>
Size: Discrete 1280x720<br>
Interval: Discrete
0.017s (60.000 fps)<br>
Interval: Discrete
0.020s (50.000 fps)<br>
Interval: Discrete
0.033s (30.000 fps)<br>
Interval: Discrete
0.050s (20.000 fps)<br>
Interval: Discrete
0.100s (10.000 fps)<br>
...............<br>
<br>
Size: Discrete 720x576<br>
Interval: Discrete
0.017s (60.000 fps)<br>
Interval: Discrete
0.020s (50.000 fps)<br>
Interval: Discrete
0.033s (30.000 fps)<br>
Interval: Discrete
0.050s (20.000 fps)<br>
Interval: Discrete
0.100s (10.000 fps)<br>
................<br>
</blockquote>
<br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto"><br>
</div>
<div dir="auto">
<div class="gmail_quote">
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
-------------------------------------<br>
<br>
Try also ffplay to list
supported formats for a
video4linux2 device:<br>
<br>
<blockquote>ffplay -hide_banner
-f v4l2 -list_formats all
/dev/video2<br>
[video4linux2,v4l2 @
0x7f8280000cc0] Raw
: yuyv422 : YUYV
4:2:2 : 1920x1080 1600x1200
1360x768 1280x1024 1280x960
1280x720 1024x768 800x600
720x576 720x480 640x480<br>
/dev/video2: Immediate exit
requested<br>
nan : 0.000 fd= 0 aq=
0KB vq= 0KB sq= 0B f=0/0</blockquote>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">this one at least list
all formats but not their framerates
...</div>
<div dir="auto">
<div class="gmail_quote">
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
<blockquote> <br>
<br>
<br>
ffplay -hide_banner -f v4l2
-list_formats all /dev/video3<br>
[video4linux2,v4l2 @
0x7f3bd0000cc0]
ioctl(VIDIOC_G_INPUT):
Inappropriate ioctl for device<br>
/dev/video3: Inappropriate
ioctl for device<br>
</blockquote>
<br>
-------------<br>
<br>
I am not sure about what the
following command really does,
but it was described to<br>
<br>
"Grab and record the input of a
video4linux2 device, leave the
frame rate and size as
previously set:"<br>
<br>
<blockquote>ffmpeg -hide_banner
-f v4l2 -input_format yuyv422
-i /dev/video2 out_test.mpeg<br>
<br>
[video4linux2,v4l2 @
0x55c22212cfc0] Dequeued v4l2
buffer contains corrupted data
(0 bytes).<br>
Input #0, video4linux2,v4l2,
from '/dev/video2':<br>
Duration: N/A, start:
0.000000, bitrate: 1990656
kb/s<br>
Stream #0:0: Video: rawvideo
(YUY2 / 0x32595559), yuyv422,
1920x1080, 1990656 kb/s, 60
fps, 60 tbr, 1000k tbn<br>
Stream mapping:<br>
Stream #0:0 -> #0:0
(rawvideo (native) ->
mpeg1video (native))<br>
Press [q] to stop, [?] for
help<br>
[video4linux2,v4l2 @
0x55c22212cfc0] Dequeued v4l2
buffer contains corrupted data
(0 bytes).<br>
Last message repeated 30
times<br>
[mpeg @ 0x55c22214f800] VBV
buffer size not set, using
default size of 230KB<br>
If you want the mpeg file to
be compliant to some
specification<br>
Like DVD, VCD or others, make
sure you set the correct
buffer size<br>
Output #0, mpeg, to
'out_test.mpeg':<br>
Metadata:<br>
encoder :
Lavf59.27.100<br>
Stream #0:0: Video:
mpeg1video, yuv420p(tv,
progressive), 1920x1080,
q=2-31, 200 kb/s, 60 fps, 90k
tbn<br>
Metadata:<br>
encoder :
Lavc59.37.100 mpeg1video<br>
Side data:<br>
cpb: bitrate
max/min/avg: 0/0/200000 buffer
size: 0 vbv_delay: N/A<br>
frame= 1628 fps= 60 q=2.0
Lsize= 4702kB
time=03:13:19.68 bitrate=
3.3kbits/s speed= 427x <br>
video:4675kB audio:0kB
subtitle:0kB other streams:0kB
global headers:0kB muxing
overhead: 0.572162%<br>
Exiting normally, received
signal 2.<br>
</blockquote>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">try 30 fps instead of
60?</div>
</div>
</blockquote>
<br>
Like this?<br>
But shouldn't a 422 and not a 420 output
format be created?<br>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">it seems in some cases ffmpeg not
geared towards preserving most information, just
picks up most commonly defined/first pixel format.
Try mpeg2video as output codec, and/or specify
pixel format (pix_fmt) more explicitly before
output's filename? </div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
<br>
Could you possibly examplify the latter?<br>
<br>
If things work as hoped in another thread, I want to test if analog
Hi8/S-video directly to digital DVD-Video.mpg and SD-BD-Video.mpg is
possible.<br>
That is bypass the extra step to DV format conversion and
compression. <br>
<br>
<blockquote type="cite"
cite="mid:CA+rFky5e6-nzhtewwvZJhuefFVVCA+BeU9epgedzPA4GP+1hnQ@mail.gmail.com">
<div dir="auto">
<div>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<blockquote type="cite">
<div dir="auto">
<div dir="auto">Also you can try 'copy' video codec
and meet absolutely enormous test file.</div>
<div dir="auto"><br>
</div>
<div dir="auto">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div> <br>
<blockquote>ffmpeg -hide_banner -f v4l2
-input_format yuyv422 -video_size
1920x1080 -framerate 30 -t 10 -i
/dev/video2 out_1920x1024.mpeg<br>
[video4linux2,v4l2 @ 0x564d7d7c3040]
Dequeued v4l2 buffer contains corrupted
data (0 bytes).<br>
Input #0, video4linux2,v4l2, from
'/dev/video2':<br>
Duration: N/A, start: 0.000000, bitrate:
995328 kb/s<br>
Stream #0:0: Video: rawvideo (YUY2 /
0x32595559), yuyv422, 1920x1080, 995328
kb/s, 30 fps, 30 tbr, 1000k tbn<br>
Stream mapping:<br>
Stream #0:0 -> #0:0 (rawvideo
(native) -> mpeg1video (native))<br>
Press [q] to stop, [?] for help<br>
[video4linux2,v4l2 @ 0x564d7d7c3040]
Dequeued v4l2 buffer contains corrupted
data (0 bytes).<br>
Last message repeated 30 times<br>
[mpeg @ 0x564d7d7e5a80] VBV buffer size
not set, using default size of 230KB<br>
If you want the mpeg file to be compliant
to some specification<br>
Like DVD, VCD or others, make sure you set
the correct buffer size<br>
Output #0, mpeg, to 'out_1920x1024.mpeg':<br>
Metadata:<br>
encoder : Lavf59.27.100<br>
Stream #0:0: Video: mpeg1video,
yuv420p(tv, progressive), 1920x1080,
q=2-31, 200 kb/s, 30 fps, 90k tbn<br>
Metadata:<br>
encoder : Lavc59.37.100
mpeg1video<br>
Side data:<br>
cpb: bitrate max/min/avg: 0/0/200000
buffer size: 0 vbv_delay: N/A<br>
frame= 301 fps= 30 q=1.6 Lsize= 896kB
time=06:56:05.30 bitrate= 0.3kbits/s
speed=2.47e+03x <br>
video:890kB audio:0kB subtitle:0kB other
streams:0kB global headers:0kB muxing
overhead: 0.710403%<br>
<br>
-----------<br>
ffprobe -hide_banner out_1920x1024.mpeg<br>
Input #0, mpeg, from 'out_1920x1024.mpeg':<br>
Duration: 00:00:10.03, start:
24955.333333, bitrate: 731 kb/s<br>
Stream #0:0[0x1e0]: Video: mpeg1video,
yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9],
104857 kb/s, 30 fps, 30 tbr, 90k tbn<br>
<br>
------------<br>
mediainfo out_1920x1024.mpeg<br>
General<br>
Complete name :
out_1920x1024.mpeg<br>
Format :
MPEG-PS<br>
File size :
896 KiB<br>
Duration :
10 s 33 ms<br>
Overall bit rate mode :
Variable<br>
Overall bit rate :
732 kb/s<br>
<br>
Video<br>
ID :
224 (0xE0)<br>
Format :
MPEG Video<br>
Format version :
Version 1<br>
Format settings, BVOP :
No<br>
Format settings, Matrix :
Default<br>
Format settings, GOP :
N=12<br>
Duration :
10 s 33 ms<br>
Bit rate mode :
Variable<br>
Bit rate :
717 kb/s<br>
Width :
1 920 pixels<br>
Height :
1 080 pixels<br>
Display aspect ratio :
16:9<br>
Frame rate :
30.000 FPS<br>
Color space :
YUV<br>
Chroma subsampling :
4:2:0<br>
Bit depth :
8 bits<br>
Scan type :
Progressive<br>
Compression mode :
Lossy<br>
Bits/(Pixel*Frame) :
0.012<br>
Time code of first frame :
00:00:00:00<br>
Time code source :
Group of pictures header<br>
GOP, Open/Closed :
Open<br>
GOP, Open/Closed of first frame :
Closed<br>
Stream size :
878 KiB (98%)<br>
<br>
</blockquote>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
<br>
Alsa identifier for ms2130?<br>
<br>
I'm ready to test with the analog camcorder connectedto
A/D-adapter + ms210 capture, but first a question about
the Alsa hw: identifier for the latter.<br>
<br>
For the Hama ms2109 I used <br>
ffmpeg -f alsa -ac 2 -i hw:CARD=MS2109,DEV=0<br>
<br>
For ms2130 UHD card<br>
<br>
<blockquote>arecord -l<br>
<blockquote>**** List of CAPTURE Hardware Devices ****<br>
......<br>
card 3: UHD [USB3.0 UHD], device 0: USB Audio [USB
Audio]<br>
Subdevices: 1/1<br>
Subdevice #0: subdevice #0<br>
<br>
</blockquote>
arecord -L<br>
<blockquote>.....<br>
sysdefault:CARD=UHD<br>
USB3.0 UHD, USB Audio<br>
Default Audio Device<br>
front:CARD=UHD,DEV=0<br>
USB3.0 UHD, USB Audio<br>
Front output / input<br>
</blockquote>
</blockquote>
Suggestion to <br>
<br>
ffmpeg -f alsa -ac 2 -i hw:?<br>
===<br>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">just omit hw alsa part (but not -f alsa) so it
defaults to sysdefault ? :)</div>
<div dir="auto"><br>
</div>
<div dir="auto">also, try 3:0 (card 3, subdevice 0)</div>
<div dir="auto"><br>
</div>
<div dir="auto">also, may be try /dev/snd/pcm*c devices</div>
</div>
</blockquote>
<br>
<br>
1) Test to generate a fake alsa audio file with ms2130<br>
<blockquote>ffmpeg -hide_banner -f alsa -t 30 out.wav<br>
Output #0, alsa, to 'out.wav':<br>
Output file #0 does not contain any stream<br>
</blockquote>
That is, it doesn't work without identifying ms2130 card#3, because
there ar sysdefaults for each card I expect<br>
<br>
<blockquote>ffmpeg -hide_banner -f alsa -i hw:3 -t 30 out.wav<br>
Guessed Channel Layout for Input Stream #0.0 : stereo<br>
Input #0, alsa, from 'hw:3':<br>
Duration: N/A, start: 1678372304.209057, bitrate: 1536 kb/s<br>
Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s<br>
Stream mapping:<br>
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le
(native))<br>
Press [q] to stop, [?] for help<br>
Output #0, wav, to 'out.wav':<br>
Metadata:<br>
ISFT : Lavf59.27.100<br>
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
stereo, s16, 1536 kb/s<br>
Metadata:<br>
encoder : Lavc59.37.100 pcm_s16le<br>
size= 5625kB time=00:00:30.00 bitrate=1536.1kbits/s speed=
1x <br>
video:0kB audio:5625kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.001354%<br>
<br>
<br>
ffprobe -hide_banner out.wav<br>
Input #0, wav, from 'out.wav':<br>
Metadata:<br>
encoder : Lavf59.27.100<br>
Duration: 00:00:30.00, bitrate: 1536 kb/s<br>
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
2 channels, s16, 1536 kb/s<br>
</blockquote>
------------<br>
<br>
2) Tests to generate fake Video with actual frame sizes and alsa
audio packaged as ff1.mkv <br>
25 fps (pal) is automatically changed to supported 30 fps - I just
wonder if that will matter drawback for future playback, editing
etc?<br>
<br>
<blockquote>ffmpeg -hide_banner -f alsa -ac 2 -i hw:3 -f v4l2
-framerate 25 -video_size 720x576 -i /dev/video2 -codec:v ffv1
-level 3 -codec:a pcm_s16le -f matroska 720x576_ms2130_ffv1.mkv<br>
<br>
ffprobe -hide_banner 720x576_ms2130_ffv1.mkv<br>
Input #0, matroska,webm, from '720x576_ms2130_ffv1.mkv':<br>
Metadata:<br>
ENCODER : Lavf59.27.100<br>
Duration: 00:00:13.07, start: 0.000000, bitrate: 1028 kb/s<br>
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p(tv,
progressive), 720x576, 30 fps, 30 tbr, 1k tbn<br>
Metadata:<br>
ENCODER : Lavc59.37.100 ffv1<br>
DURATION : 00:00:13.066000000<br>
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536
kb/s<br>
Metadata:<br>
ENCODER : Lavc59.37.100 pcm_s16le<br>
DURATION : 00:00:13.036000000<br>
</blockquote>
---------------<br>
<br>
<blockquote>ffmpeg -hide_banner -f alsa -ac 2 -i hw:3 -f v4l2
-framerate 25 -video_size 1280x720 -i /dev/video2 -codec:v ffv1
-level 3 -codec:a pcm_s16le -f matroska 1280x720_ms2130_ffv1.mkv<br>
<br>
ffprobe -hide_banner 1280x720_ms2130_ffv1.mkv<br>
Input #0, matroska,webm, from '1280x720_ms2130_ffv1.mkv':<br>
Metadata:<br>
ENCODER : Lavf59.27.100<br>
Duration: 08:51:10.37, start: 0.000000, bitrate: 0 kb/s<br>
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p(tv,
progressive), 1280x720, 30 fps, 30 tbr, 1k tbn<br>
Metadata:<br>
ENCODER : Lavc59.37.100 ffv1<br>
DURATION : 08:51:10.366000000<br>
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536
kb/s<br>
Metadata:<br>
ENCODER : Lavc59.37.100 pcm_s16le<br>
DURATION : 00:00:11.924000000<br>
</blockquote>
-------------<br>
<br>
<blockquote>ffmpeg -hide_banner -f alsa -ac 2 -i hw:3 -f v4l2
-framerate 25 -video_size 1920x1080 -i /dev/video2 -codec:v ffv1
-level 3 -codec:a pcm_s16le -f matroska 1920x1080_ms2130_ffv1.mkv<br>
<br>
ffprobe -hide_banner 1920x1080_ms2130_ffv1.mkv<br>
[matroska,webm @ 0x56077d8b8f00] Could not find codec parameters
for stream 0 (Video: ffv1 (FFV1 / 0x31564646), none(tv,
progressive), 1920x1080): unspecified pixel format<br>
Consider increasing the value for the 'analyzeduration' (0) and
'probesize' (5000000) options<br>
Input #0, matroska,webm, from '1920x1080_ms2130_ffv1.mkv':<br>
Metadata:<br>
ENCODER : Lavf59.27.100<br>
Duration: 09:01:55.87, start: 0.000000, bitrate: 0 kb/s<br>
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), none(tv,
progressive), 1920x1080, 30 fps, 30 tbr, 1k tbn<br>
Metadata:<br>
ENCODER : Lavc59.37.100 ffv1<br>
DURATION : 09:01:55.866000000<br>
Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536
kb/s<br>
Metadata:<br>
ENCODER : Lavc59.37.100 pcm_s16le<br>
DURATION : 00:00:10.232000000<br>
</blockquote>
----------------<br>
<br>
<br>
</body>
</html>