<div dir="auto">I see. Thanks for being pedantic. I think we need another thread :) because this one overflow mobile gmail client again.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">вс, 12 февр. 2023 г., 15:17 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com">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 11.02.2023 23:18, skrev Terje J.
Hanssen:<br>
</div>
<blockquote type="cite">
<br>
<br>
<div>Den 09.02.2023 01:34, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт, 9 февр. 2023 г.,
03:14 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer" target="_blank">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 08.02.2023 23:16, skrev Andrew Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт, 9 февр.
2023 г., 01:13 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer noreferrer" target="_blank">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 08.02.2023 22:47, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт,
9 февр. 2023 г., 00:38 Terje J.
Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer
noreferrer noreferrer noreferrer" target="_blank">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 08.02.2023 19:15,
skrev Andrew Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">ср,
8 февр. 2023 г.,
20:53 Terje J.
Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">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
08.02.2023
16:45, skrev
Terje J.
Hanssen:<br>
</div>
<blockquote type="cite"> <br>
<br>
<div>Den
08.02.2023
15:34, skrev
Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">ср, 8 февр. 2023 г., 17:16 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">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
08.02.2023
14:21, skrev
Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">ср, 8 февр. 2023 г., 14:47 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">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
08.02.2023
02:38, skrev
Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">ср, 8 февр. 2023 г., 04:08 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">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
08.02.2023
00:52, skrev
Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto">
<div><br>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">ср, 8 февр. 2023 г., 01:35 Terje J. Hanssen via Cin
<<a href="mailto:cin@lists.cinelerra-gg.org" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">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> <br>
<br>
<div>Den
02.02.2023
01:46, skrev
Terje J.
Hanssen:<br>
</div>
<blockquote type="cite"> <font face="Courier
New, Courier,
monospace"><font face="Courier
New, Courier,
monospace">.......</font></font><font face="Courier
New, Courier,
monospace"><br>
</font></blockquote>
<br>
<blockquote type="cite"><font face="Courier
New, Courier,
monospace">
but I prepare
myself to test
and use one
method left
with regards
to "Personal
Video
Archiving".<br>
<br>
Therefore I
have ordered
two selected,
inexpensive
devices (the
urls here are
just for
English
language):<br>
<br>
1) Capture
Card USB HDMI
4K to 1080P
USB-C adapter
(Speedy USB
3.2/3.1/3.0, </font><font face="Courier
New, Courier,
monospace"><font face="Courier
New, Courier,
monospace">60
Hz and 1080p
FHD.</font>)<br>
<a href="https://www.turascandinavia.com/en/products/computer/microphone-webcam/webcams/74257" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">https://www.turascandinavia.com/en/products/computer/microphone-webcam/webcams/74257</a><br>
</font>
<ul>
<li><font face="Courier
New, Courier,
monospace">Fluid
video
recordings
without delays
or distortions
during live
streaming</font></li>
<li><font face="Courier
New, Courier,
monospace">Linux
not mentioned,
but assumed
this is a
standard
supported UVC.
OBS and VLC is
mentioned.</font></li>
</ul>
</blockquote>
<br>
<font face="monospace">Then
the first
item, Hama
Video
Recording
Stick, HDMI 4k
- USB3.x is
received. It
promises: <br>
"Fluid video
recordings
without delays
or distortions
during live
streaming,
thanks to a
picture
frequency of
60 Hz and
1080p with
Full HD.
Transform
high-quality
video cameras
into a
high-resolution
USB web
camera".<br>
<br>
I have done a
quick, first
test using my
Sony HDR-FX7E
camera. This
is a HDV 1080i
camcorder with
MPEG-2 video
compression at
25 mbps on
tape
1440x1080,
50i25fps,
4:2:0 and MP2
stereo audio.
Currently it's
cassette deck
is broken and
needs repair
service. <br>
<br>
But according
to Steve
Mullen's V1
and FX7
handbook (not
mentioned in
the manual):<br>
</font>
<blockquote><font face="monospace">1. When the camera is operating, the EIP (Enhanced
Image
Processor)
generates
uncompressed
1440x1080i
with a 4:2:2
color space. </font><font face="monospace">Digital 4:2:2 data are output via the HDMI port while
4:2:2 analog
is output via
component-out.
Therefore, you
can record
4:2:2 live HD
video from the
camera without
MPEG-2
compression.
V1 and FX7
provide an
HDMI output
port that
carries
uncompressed
4:2:2, 8-bit,
digital video
plus
dual-channel,
PCM, 16-bit,
48kHz audio
When the
camera is
running. </font><br>
<br>
<font face="monospace">2.
If you are
playing a
1080i50 or
1080i60 HDV
tape. The
4:2:0 MPEG-2
is decoded and
chroma
up-scaled to a
4:2:2. The
HDMI</font><br>
<font face="monospace">chip
downscales
1440 to 1280
while it
up-scales 540
to 720. The
result is
720p50 or
720p60, which
is output via
HDMI.<br>
</font></blockquote>
<font face="monospace">That
is, I have
tested section
1 now, but see
now that I
didn't test
1440x1080
resolution.
The only
resolution I
got to work at
25 fps was
720x576 (SD),
while HD
1280x720 and
FHD 1920x1080
were set down
to 10 fps and
5 fps
respectively
by the driver
and caused
jumpy
playback.<br>
</font></div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">Did
you tried to
force specific
format
(uncompressed)
before -i
parameter for
ffmpeg? </div>
</div>
</blockquote>
<br>
Just
"-framerate 25
-video_size
1920x1080"
before -i as
repeated in
the code as
follows, where
I tested to
encode to
uncompressed
v210 instead
of ffv1, but
with no change
with regards
to low 5 fps:<br>
<br>
ffmpeg
-hide_banner
-f v4l2
-framerate 25
-video_size
1920x1080 -i
/dev/video0
-codec:v v210
-codec:a
pcm_s16le -f
matroska
1920x1080_v210.mkv<br>
[video4linux2,v4l2 @ 0x55944900e0c0] The driver changed the time per
frame from
1/25 to 1/5<br>
<br>
I also read a
related issue
and reply to
this post at
Superuser,
where
1920x1080 was
not supported
on the webcam.<br>
<a href="https://superuser.com/questions/1449252/ffmpeg-captures-from-uvc-dev-video0-in-any-resolution-except-for-1920x1080" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">https://superuser.com/questions/1449252/ffmpeg-captures-from-uvc-dev-video0-in-any-resolution-except-for-1920x1080</a><br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto">Also
look out for
usb2 vs usb3
ports?
Shouldn't
capture device
hang on bus
002 (usb 3.0)
root hub,
instead of bus
001 (usb 2.0
root hub),
from lsusb
below?</div>
</div>
</blockquote>
<br>
This may well
work better. I
have to admit
that I have
never studied
the difference
between shared
usb buses. My
thought was to
try to change
the connected
usb devices,
but tested
first the only
free usb3 port
(blue) on the
add-on
frontpanel of
the
workstation.
The other two
usb3 ports are
on the
backpanel and
are used for
the Asus
blu-ray burner
and 8TB
Seagate
expansion
video disc. <br>
<br>
The other usb
ports on both
panels are
usb2 ports,
whereof two
for the
wireless
keyboard and
mouse on the
fronpanel.
What I
possibly
already have
mentioned
before, is
that sometimes
if I connect a
usb(2) device
or memory to
the usb3 port
on the
frontpanel,
this cause
hang on the
keyboard or
mouse. But
this didn't
happend this
time with the
USB3 capture
stick.<br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto"><br>
</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><font face="monospace">
<br>
Someone here
that have
suggestion to
possibly
modified
syntax or can
verify that
the driver
doesn't manage
this?<br>
<br>
Another
(setup)
problem, there
was no audio
recorded or
heard during
playback!?<br>
<br>
In the
following I
list the test
command syntax
I've
collectedf and
tried with
shortened
output (yet
long):<br>
To explain, I
have also
another USB
2.0 Webcam
connected,
beside the new
HDMI-USB3
Videstick.<br>
<br>
Verify the
devices,
drivers and
formats:<br>
---------------------------------------<br>
dmesg | tail<br>
[22706.060759]
perf:
interrupt took
too long (2521
> 2500),
lowering
kernel.perf_event_max_sample_rate to 79250<br>
[32105.561575]
perf:
interrupt took
too long (3158
> 3151),
lowering
kernel.perf_event_max_sample_rate to 63250<br>
[40586.477420]
usb 1-5: USB
disconnect,
device number
2<br>
[40599.099612]
usb 1-5: new
high-speed USB
device number
5 using
xhci_hcd<br>
[40599.250960]
usb 1-5: New
USB device
found,
idVendor=534d,
idProduct=2109, bcdDevice=21.00<br>
[40599.250972]
usb 1-5: New
USB device
strings:
Mfr=1,
Product=2,
SerialNumber=0<br>
[40599.250978]
usb 1-5:
Product: USB
Video<br>
[40599.250984]
usb 1-5:
Manufacturer:
MACROSILICON<br>
[40599.252310]
usb 1-5: Found
UVC 1.00
device USB
Video
(534d:2109)<br>
[40599.256234]
hid-generic
0003:534D:2109.0006:
hiddev96,hidraw0: USB HID v1.10 Device [MACROSILICON USB Video] on
usb-0000:00:14.0-5/input4<br>
-----------------------------<br>
<br>
lsusb<br>
Bus 002 Device
003: ID
05e3:0732
Genesys Logic,
Inc.
All-in-One
Cardreader<br>
Bus 002 Device
002: ID
0bc2:2038
Seagate RSS
LLC Expansion
HDD<br>
Bus 002 Device
001: ID
1d6b:0003
Linux
Foundation 3.0
root hub<br>
Bus 001 Device
003: ID
046d:c534
Logitech, Inc.
Unifying
Receiver<br>
Bus 001 Device
005: ID
534d:2109
MacroSilicon
USB Video<br>
Bus 001 Device
004: ID
0c45:6340
Microdia
Camera<br>
Bus 001 Device
001: ID
1d6b:0002
Linux
Foundation 2.0
root hub<br>
<br>
<br>
udevadm info
/dev/video* |
egrep
'DEVNAME|ID_V4L_PRODUCT'<br>
E:
DEVNAME=/dev/video0<br>
E:
ID_V4L_PRODUCT=USB
Video: USB
Video<br>
E:
DEVNAME=/dev/video1<br>
E:
ID_V4L_PRODUCT=USB
Video: USB
Video<br>
E:
DEVNAME=/dev/video2<br>
E:
ID_V4L_PRODUCT=USB
2.0 Camera: HD
720P Webcam<br>
E:
DEVNAME=/dev/video3<br>
E:
ID_V4L_PRODUCT=USB
2.0 Camera: HD
720P Webcam<br>
<br>
lsusb | egrep
'Video|Camera'<br>
Bus 001 Device
005: ID
534d:2109
MacroSilicon
USB Video<br>
Bus 001 Device
004: ID
0c45:6340
Microdia
Camera<br>
<br>
--------------------<br>
<br>
ll /dev/video*<br>
crw-rw----+ 1
root video 81,
0 feb. 7
20:22
/dev/video0<br>
crw-rw----+ 1
root video 81,
1 feb. 7
20:22
/dev/video1<br>
crw-rw----+ 1
root video 81,
2 feb. 7
09:05
/dev/video2<br>
crw-rw----+ 1
root video 81,
3 feb. 7
09:05
/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/video2<br>
/dev/video3<br>
<br>
USB Video: USB
Video
(usb-0000:00:14.0-5):<br>
/dev/video0<br>
/dev/video1<br>
<br>
-------------------------<br>
<br>
ffmpeg -f v4l2
-list_formats
all -i
/dev/video0<br>
ffmpeg
-hide_banner
-f v4l2
-list_formats
all -i
/dev/video0<br>
[video4linux2,v4l2 @ 0x556cf63570c0] Compressed: mjpeg :
Motion-JPEG :
1920x1080
1600x1200
1360x768
1280x1024
1280x960
1280x720
1024x768
800x600
720x576
720x480
640x480<br>
[video4linux2,v4l2 @ 0x556cf63570c0] Raw : yuyv422 :
YUYV 4:2:2 :
1920x1080
1600x1200
1360x768
1280x1024
1280x960
1280x720
1024x768
800x600
720x576
720x480
640x480<br>
/dev/video0:
Immediate exit
requested<br>
<br>
ffmpeg
-hide_banner
-f v4l2
-list_formats
all -i
/dev/video1<br>
[video4linux2,v4l2 @ 0x5560c0bc70c0]
ioctl(VIDIOC_G_INPUT): Inappropriate ioctl for device<br>
/dev/video1:
Inappropriate
ioctl for
device<br>
----------------<br>
<br>
v4l2-ctl --all<br>
Driver Info
(not using
libv4l2):<br>
Driver
name :
uvcvideo<br>
Card
type : USB
Video: USB
Video<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>
Priority: 2<br>
Video input :
0 (Camera 1:
ok)<br>
Format Video
Capture:<br>
Width/Height
: 1920/1080<br>
Pixel
Format :
'MJPG'<br>
Field
: None<br>
Bytes
per Line :
0<br>
Size
Image :
4147200<br>
Colorspace
: sRGB<br>
Transfer
Function :
Rec. 709<br>
YCbCr/HSV
Encoding:
ITU-R 601<br>
Quantization
: Default
(maps to Full
Range)<br>
Flags
: <br>
Crop
Capability
Video Capture:<br>
Bounds :
Left 0, Top 0,
Width 1920,
Height 1080<br>
Default :
Left 0, Top 0,
Width 1920,
Height 1080<br>
Pixel
Aspect: 1/1<br>
Selection:
crop_default,
Left 0, Top 0,
Width 1920,
Height 1080<br>
Selection:
crop_bounds,
Left 0, Top 0,
Width 1920,
Height 1080<br>
Streaming
Parameters
Video Capture:<br>
Capabilities
: timeperframe<br>
Frames
per second:
30.000 (30/1)<br>
Read
buffers :
0<br>
brightness 0x00980900 (int) : min=-128 max=127
step=1
default=-11
value=-11<br>
contrast 0x00980901 (int) : min=0 max=255
step=1
default=148
value=148<br>
saturation 0x00980902 (int) : min=0 max=255
step=1
default=180
value=180<br>
hue 0x00980903 (int) : min=-128 max=127
step=1
default=0
value=0<br>
<br>
-----------------<br>
<br>
v4l2-ctl
--list-formats-ext<br>
ioctl:
VIDIOC_ENUM_FMT<br>
Index :
0<br>
Type :
Video Capture<br>
Pixel
Format: 'MJPG'
(compressed)<br>
Name :
Motion-JPEG<br>
Size: Discrete 1920x1080<br>
Interval: Discrete 0.017s (60.000 fps)<br>
Interval: Discrete 0.033s (30.000 fps)<br>
Interval: Discrete 0.040s (25.000 fps)<br>
Interval: Discrete 0.050s (20.000 fps)<br>
Interval: Discrete 0.100s (10.000 fps)<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>
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>
</font></div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">well,
it seems we
know by now
why this
device was
...unexpensive.</div>
</div>
</blockquote>
<br>
Yes, I have a
"90-days open
order" and
will start to
search for
another,
better UVC
video capture
device.<br>
The problem is
the lack of
definitive
specifications,
compared with
my proprietary
BMD devices.<br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto"><br>
</div>
<div dir="auto">it
really seems
to report only
5-10 fps at
fullHD
uncompresed,
anything
bigger is
mjpeg ...</div>
</div>
</blockquote>
<br>
Type :
Video Capture<br>
Pixel
Format: 'YUYV'<br>
Name :
YUYV 4:2:2<br>
Size: Discrete 1920x1080<br>
Interval: Discrete 0.200s (5.000 fps)<br>
<br>
This can
absolutely not
be what they
promote as:<br>
<font face="monospace">"Fluid
video
recordings
without delays
or distortions
during live
streaming,
thanks to a
picture
frequency of
60 Hz and
1080p with
Full HD".</font><br>
<br>
<blockquote type="cite">
<div dir="auto"><br>
<div dir="auto"><a href="https://superuser.com/questions/1449252/ffmpeg-captures-from-uvc-dev-video0-in-any-resolution-except-for-1920x1080" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">https://superuser.com/questions/1449252/ffmpeg-captures-from-uvc-dev-video0-in-any-resolution-except-for-1920x1080</a><br>
</div>
</div>
</blockquote>
<br>
I also tried
that link's
suggested
syntax<br>
<pre><code>ffmpeg -y -t 15 -f video4linux2 -video_size 1920x1080 -input_format nv12 -timestamps abs -use_libv4l2 1 -i /dev/video0 out.mov</code>
</pre>
but it didn't
work for me,
just quitted
ffmpeg with<br>
<blockquote><font face="monospace">Unrecognized option 'timestamps'.</font><br>
<font face="monospace">Error
splitting the
argument list:
Option not
found</font><br>
</blockquote>
Looking at
ffmpeg man
pages at <a href="https://manpages.org/ffmpeg/1" rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer noreferrer" target="_blank">https://manpages.org/ffmpeg/1</a>
there also is
a similar
video4linux2
syntax example<br>
<blockquote><font face="monospace">Grab and record the input of a video4linux2 device,
leave the
frame rate and
size as
previously
set:</font><br>
<font face="monospace">ffmpeg
-f
video4linux2
-input_format
mjpeg -i
/dev/video0
out.mpeg</font><br>
</blockquote>
<ul>
<li><font face="monospace">video_size</font></li>
<li><font face="monospace">
Set the video
frame size.
The argument
must be a
string in the
form
WIDTHxHEIGHT
or a valid
size
abbreviation.
</font></li>
<li><font face="monospace">pixel_format</font></li>
<li><font face="monospace">
Select the
pixel format
(only valid
for raw video
input). </font></li>
<li><font face="monospace">input_format</font></li>
<li><font face="monospace">
Set the
preferred
pixel format
(for raw
video) or a
codec name.
This option
allows one to
select the
input format,
when several
are available.
</font></li>
</ul>
But what
should be set
as
input_format
in this case?<br>
<br>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><span style="color:rgb(80,0,80);font-size:12.8px">YUYV ? (lowercase)</span><br>
</div>
</div>
</blockquote>
<font face="Courier
New, Courier,
monospace"><br>
<span style="color:#000000;background-color:#ffffff">ffmpeg
-hide_banner
-f
video4linux2
-input_format
yuyv -i
/dev/video0
out.mkv </span><br>
<span style="color:#ff5fff;background-color:#000000">[video4linux2,v4l2
@
0x55b25017e0c0]
</span><span style="color:#ff0000;background-color:#000000">No
such input
format: yuyv.</span><span style="color:#000000;background-color:#ffffff"> </span><br>
<span style="color:#ff0000;background-color:#000000">/dev/video0:
Invalid
argument
</span><br>
</font></div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">:(</div>
</div>
</blockquote>
</blockquote>
<br>
Yes, 'yuyv422' at
least not returned
any errors, but
just verified 5
fps from the
encoded file<br>
<br>
ffmpeg
-hide_banner -f
video4linux2
-input_format
yuyv422 -i
/dev/video0
out.mkv<br>
<br>
ffprobe
-hide_banner
out.mkv<br>
Input #0,
matroska,webm,
from 'out.mkv':<br>
Metadata:<br>
ENCODER :
Lavf58.76.100<br>
Duration:
00:00:12.40,
start: 0.000000,
bitrate: 2 kb/s<br>
Stream #0:0:
Video: vp9
(Profile 1),
yuv422p(tv,
progressive),
1920x1080, 5 fps,
5 tbr, 1k tbn, 1k
tbc (default)<br>
Metadata:<br>
ENCODER :
Lavc58.134.100
libvpx-vp9<br>
DURATION :
00:00:12.400000000<br>
<br>
Any idea why the
audio:0kB from
'-codec:a
pcm_s16le'
disappeared in the
encoded files?<br>
<br>
<font face="monospace">inxi
-GA<br>
Graphics:
Device-1: NVIDIA
GK208B [GeForce
GT 730] driver:
nouveau v:
kernel<br>
Device-2:
Microdia Camera
type: USB
driver:
snd-usb-audio,uvcvideo<br>
Device-3:
MacroSilicon USB
Video type: USB
driver:
hid-generic,snd-usb-audio,usbhid,uvcvideo<br>
Display: server:
SUSE LINUX
1.20.3 driver:
loaded: nouveau
unloaded:
fbdev,modesetting,vesa<br>
resolution:
2560x1440~60Hz<br>
OpenGL:
renderer:
llvmpipe (LLVM
11.0.1 256 bits)
v: 4.5 Mesa
21.2.4<br>
Audio:
Device-1: Intel
100 Series/C230
Series Family HD
Audio driver:
snd_hda_intel<br>
Device-2: NVIDIA
GK208 HDMI/DP
Audio driver:
snd_hda_intel<br>
Device-3:
Microdia Camera
type: USB
driver:
snd-usb-audio,uvcvideo<br>
Device-4:
MacroSilicon USB
Video type: USB
driver:
hid-generic,snd-usb-audio,usbhid,uvcvideo<br>
Sound
Server-1: ALSA
v:
k5.14.21-150400.24.41-default running: yes<br>
Sound
Server-2:
PulseAudio v:
15.0 running:
yes<br>
Sound
Server-3:
PipeWire v:
0.3.49 running:
yes</font></div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">I think
for audio you need few
more alsa switches:</div>
<div dir="auto"><br>
</div>
<div dir="auto"><a href="https://askubuntu.com/questions/1451630/hdmi-capture-card-macrosilicon-ms2109-missing-audio-device-on-ubuntu-22-04" rel="noreferrer
noreferrer noreferrer
noreferrer noreferrer noreferrer" target="_blank">https://askubuntu.com/questions/1451630/hdmi-capture-card-macrosilicon-ms2109-missing-audio-device-on-ubuntu-22-04</a><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">something
like this but find/use
your own alsa device :)</div>
</div>
</blockquote>
<br>
What I feel unused to is the
need to set ffmpeg code both
Audio and Video input format
and input device respectively.<br>
A couple of syntax examples
for audio found:<br>
<br>
ffmpeg \<br>
<br>
-f alsa -ac 2 -i
hw:CARD=HDMI,DEV=0<br>
<a href="https://trac.ffmpeg.org/wiki/Capture/V4L2_ALSA" rel="noreferrer noreferrer
noreferrer noreferrer
noreferrer noreferrer" target="_blank">https://trac.ffmpeg.org/wiki/Capture/V4L2_ALSA</a><br>
<br>
-f pulse -ac 2 -i default<br>
<a href="https://dev.to/ethand91/how-to-record-webcam-video-and-audio-using-ffmpeg-419c" rel="noreferrer noreferrer
noreferrer noreferrer
noreferrer noreferrer" target="_blank">https://dev.to/ethand91/how-to-record-webcam-video-and-audio-using-ffmpeg-419c</a><br>
<br>
Suggestions here what to use
from the listing below?<br>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"></div></div></blockquote></div></blockquote></div></div></div></blockquote></div></blockquote></div></div></div></blockquote></blockquote></div></blockquote></div>