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<div class="moz-cite-prefix">Den 08.02.2023 15:34, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite"
cite="mid:CA+rFky5=QnUJNHJbjAQQtUagmNuqgY3sMERMgTnopc_9s+=YBQ@mail.gmail.com">
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<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" target="_blank" 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 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"
target="_blank" 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 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"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">terjejhanssen@gmail.com</a>>:<br>
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<blockquote class="gmail_quote"
style="margin:0 0 0
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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"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
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class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px
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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"
target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">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" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">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"
target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">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" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">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"><br>
</div>
<div dir="auto">:(</div>
<div dir="auto"><br>
</div>
<div dir="auto">sorry, may be ask on ffmpeg support channel
then?</div>
<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">p.s. fake 1080@60 usb dongles def. exist, made
me sad</div>
<div dir="auto"><br>
</div>
<div dir="auto"><a
href="https://www.naut.ca/blog/2020/07/09/cheap-hdmi-capture-card-review/"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.naut.ca/blog/2020/07/09/cheap-hdmi-capture-card-review/</a><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">p.p.s may be try to contact this person so you
can confirm/deny exact chip (set) in this device, or at very
minimum confirm it based on something else?</div>
<div dir="auto"><br>
</div>
<div dir="auto"><a href="https://github.com/BertoldVdb/ms-tools"
target="_blank" rel="noreferrer" moz-do-not-send="true"
class="moz-txt-link-freetext">https://github.com/BertoldVdb/ms-tools</a><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto"> "Program, library and reference designs to
develop for MacroSilicon MS2106/MS2109/MS2130 chips."</div>
</div>
</blockquote>
<br>
Interesting stuff. Mat in a previous thread referred to a couple of
other links (article test)<br>
<a class="moz-txt-link-freetext" href="https://lists.cinelerra-gg.org/pipermail/cin/2021-October/003960.html">https://lists.cinelerra-gg.org/pipermail/cin/2021-October/003960.html</a><br>
<br>
<br>
<blockquote type="cite"
cite="mid:CA+rFky5=QnUJNHJbjAQQtUagmNuqgY3sMERMgTnopc_9s+=YBQ@mail.gmail.com">
<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><br>
<br>
<br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto"><br>
</div>
<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><br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto"><br>
</div>
<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>
<blockquote type="cite">
<div dir="auto">
<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>
Index : 1<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>
Size: Discrete
1280x720<br>
Interval: Discrete 0.100s (10.000 fps)<br>
.......<br>
Size: Discrete
720x576<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>
Interval: Discrete 0.200s (5.000 fps)<br>
.........<br>
<br>
Encoding:<br>
--------<br>
ffmpeg
-hide_banner -f
v4l2 -framerate 25
-video_size
720x576 -i
/dev/video0
-codec:v ffv1
-codec:a pcm_s16le
-f matroska
720x576_ffv1.mkv<br>
<br>
ffmpeg
-hide_banner -f
v4l2 -framerate 25
-video_size
1280x720 -i
/dev/video0
-codec:v ffv1
-codec:a pcm_s16le
-f matroska
1280x720_ffv1.mkv<br>
[video4linux2,v4l2
@ 0x559d031190c0]
The driver changed
the time per frame
from 1/25 to 1/10<br>
<br>
ffmpeg
-hide_banner -f
v4l2 -framerate 25
-video_size
1920x1080 -i
/dev/video0
-codec:v ffv1
-codec:a pcm_s16le
-f matroska
1920x1080_ffv1.mkv<br>
[video4linux2,v4l2
@ 0x55ce18d060c0]
The driver changed
the time per frame
from 1/25 to 1/5<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>
<br>
Recorded test
video files and
probing formats:<br>
---------------------------------------------<br>
<br>
du -sh *<br>
258M
1280x720_ffv1.mkv<br>
292M
1920x1080_ffv1.mkv<br>
1,1G
1920x1080_v210.mkv<br>
61M
720x576_ffv1.mkv<br>
-----------------------------<br>
<br>
<br>
ffprobe
-hide_banner
720x576_ffv1.mkv<br>
Input #0,
matroska,webm,
from
'720x576_ffv1.mkv':<br>
Metadata:<br>
ENCODER :
Lavf58.76.100<br>
Duration:
00:00:09.20,
start: 0.000000,
bitrate: 55385
kb/s<br>
Stream #0:0:
Video: ffv1 (FFV1
/ 0x31564646),
yuv422p(tv,
progressive),
720x576, 25 fps,
25 tbr, 1k tbn, 1k
tbc (default)<br>
Metadata:<br>
ENCODER :
Lavc58.134.100
ffv1<br>
DURATION :
00:00:09.200000000<br>
-----------<br>
<br>
ffprobe
-hide_banner
1280x720_ffv1.mkv<br>
Input #0,
matroska,webm,
from
'1280x720_ffv1.mkv':<br>
Metadata:<br>
ENCODER :
Lavf58.76.100<br>
Duration:
00:00:38.90,
start: 0.000000,
bitrate: 55512
kb/s<br>
Stream #0:0:
Video: ffv1 (FFV1
/ 0x31564646),
yuv422p(tv,
progressive),
1280x720, 10 fps,
10 tbr, 1k tbn, 1k
tbc (default)<br>
Metadata:<br>
ENCODER :
Lavc58.134.100
ffv1<br>
DURATION :
00:00:38.900000000<br>
--------------<br>
<br>
ffprobe
-hide_banner
1920x1080_ffv1.mkv<br>
Input #0,
matroska,webm,
from
'1920x1080_ffv1.mkv':<br>
Metadata:<br>
ENCODER :
Lavf58.76.100<br>
Duration:
00:00:53.40,
start: 0.000000,
bitrate: 45747
kb/s<br>
Stream #0:0:
Video: ffv1 (FFV1
/ 0x31564646),
yuv422p(tv,
progressive),
1920x1080, 5 fps,
5 tbr, 1k tbn, 1k
tbc (default)<br>
Metadata:<br>
ENCODER :
Lavc58.134.100
ffv1<br>
DURATION :
00:00:53.400000000<br>
----------------<br>
<br>
ffprobe
-hide_banner
1920x1080_v210.mkv<br>
[matroska,webm @
0x5563ca6d30c0]
Stream #0: not
enough frames to
estimate rate;
consider
increasing
probesize<br>
Input #0,
matroska,webm,
from
'1920x1080_v210.mkv':<br>
Metadata:<br>
ENCODER :
Lavf58.76.100<br>
Duration:
00:00:41.40,
start: 0.000000,
bitrate: 221185
kb/s<br>
Stream #0:0:
Video: v210 (v210
/ 0x30313276),
yuv422p10le(tv,
progressive),
1920x1080, 5 fps,
1k tbr, 1k tbn, 1k
tbc (default)<br>
Metadata:<br>
ENCODER :
Lavc58.134.100
v210<br>
DURATION :
00:00:41.400000000<br>
<br>
---------------------------<br>
<br>
</font><br>
<blockquote
type="cite">
<ul>
</ul>
<font
face="Courier
New, Courier,
monospace"><br>
2) Scart AV SV
to HDMI
Converter
Switcher S Video
Composite RCA
DVD HD TV
adapter (3-4
weeks delivery
time <br>
<a
href="https://www.ebay.com.au/itm/295472602625"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://www.ebay.com.au/itm/295472602625</a><br>
</font>
<ul>
<li><font
face="Courier
New, Courier,
monospace">The
3-in-1
S-/video/RCA/SCART
to HDMI
converter is a
universal
converter for
analog video
input to HDMI
output. </font></li>
<li><font
face="Courier
New, Courier,
monospace">Analog
to digital
converter
(ADC), 10 bits
maximum 1,62
MSPS sampling,
</font></li>
</ul>
<font
face="Courier
New, Courier,
monospace"><br>
<br>
Q I have not yet
found a
definitiv ffmpeg
FFV1 v 3 syntax
guide for SD and
HDV capturing
and hope for
suggestions and
comments here!?<br>
<br>
3.1 FFmpeg
recipe (PAL)<br>
</font>
<blockquote><font
face="Courier
New, Courier,
monospace">ffmpeg
-i VIDEO_IN \</font><br>
<blockquote><font
face="Courier
New, Courier,
monospace">-c:v
ffv1 -level 3
-coder 1
-context 0
-slices 24
-slicecrc 1 \</font><br>
<font
face="Courier
New, Courier,
monospace">-color_primaries
bt470bg \</font><br>
<font
face="Courier
New, Courier,
monospace">-color_trc
bt709 \</font><br>
<font
face="Courier
New, Courier,
monospace">-colorspace
bt470bg \</font><br>
<font
face="Courier
New, Courier,
monospace">-color_range
mpeg \</font><br>
<font
face="Courier
New, Courier,
monospace">-map
0 \</font><br>
<font
face="Courier
New, Courier,
monospace">-top
1 \</font><br>
<font
face="Courier
New, Courier,
monospace">-c:a
copy \</font><br>
<font
face="Courier
New, Courier,
monospace">-g
1 -pix_fmt + \</font><br>
<font
face="Courier
New, Courier,
monospace">VIDEO_OUT.mkv</font><br>
</blockquote>
</blockquote>
<font
face="Courier
New, Courier,
monospace"><br>
3.2 Reference
Example<br>
<a
href="https://trac.ffmpeg.org/wiki/Encode/FFV1"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://trac.ffmpeg.org/wiki/Encode/FFV1</a><br>
<br>
Copy audio
"as-is" and use
FFV1.3 as video
codec. <br>
<br>
Parameters
are 8 threads,
coder=1,
context=1,
GOP-size=1, 24
slices and
slice-CRC on:<br>
<br>
ffmpeg -i
<input_video>
\<br>
-acodec
copy \<br>
-vcodec ffv1
-level 3 \<br>
-threads
8 \<br>
-coder
1 \<br>
-context
1 \<br>
-g
1 \<br>
-slices
24 \<br>
-slicecrc
1 \<br>
<output_video><br>
<br>
<br>
3.3 Various
Encoding
examples for
Video capture
from USB camera
/dev/video0:<br>
<br>
ffmpeg -f v4l2
-framerate 25
-video_size
720x576 -i
/dev/video0
output_data.mkv<br>
<br>
ffmpeg -f v4l2
-framerate 25
-video_size
720x576 -i
/dev/video0
-codec:v ffv1
-codec:a
pcm_s16le \<br>
-f matroska
output_video.mkv<br>
<br>
Check that video
is captured
properly using
ffplay:<br>
<br>
ffmpeg -ar 44100
-thread_queue_size 1024 -f alsa -i $AUDIO \<br>
-r 25
-thread_queue_size
1024 -i $VIDEO \<br>
-codec copy
-f matroska - |
ffplay -<br>
</font><font
face="Courier"><span><br>
</span></font><font
face="Courier
New, Courier,
monospace"><span>Check
the overall
flow using
ffplay before
capturing:</span>
</font>
<div>
<div> <br>
</div>
</div>
<font
face="Courier
New, Courier,
monospace">ffmpeg
-ar 44100
-thread_queue_size
1024 -f alsa -i
$AUDIO \<br>
-itsoffset
-0.5 -r 25
-thread_queue_size
1024 -i $VIDEO \<br>
-filter_complex
'channelmap=FL-0' -filter_complex 'crop=w=700:h=556:x=8:y=0' \<br>
-map 1:v
-map 0:a
-codec:v ffv1
-codec:a
pcm_s16le \<br>
-f matroska
- | ffplay -<br>
<br>
<br>
<br>
4, Regarding
FFV1 lossless
compression in
realtime<br>
</font><font
face="Courier
New, Courier,
monospace"><font
face="Courier
New, Courier,
monospace">Comparison
tests
(2013/2015)
have shown
that FFV1
produced the
smallest files
at the fastest
speed. It can
be used to
capture SD
material in
realtime, and
HD possibly,
too. </font></font><font
face="Courier
New, Courier,
monospace"><font
face="Courier
New, Courier,
monospace"><font
face="Courier
New, Courier,
monospace">This
according to a
2012/2015
article, where
I have
extracted the
results for
FFV1 v.3 in
the tables
below:<br>
<br>
<a
href="http://www.av-rd.com/knowhow/video/comparison_video_codecs_containers.html#codec_tests"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">http://www.av-rd.com/knowhow/video/comparison_video_codecs_containers.html#codec_tests</a><br>
</font> </font></font>
NOTE: This is a
consumer grade,
off-the-shelf PC
setup.<br>
<br>
<table>
<tbody>
<tr>
<th
colspan="2">Hardware:</th>
</tr>
<tr>
<td>CPU:</td>
<td>Intel(R)
QuadCore(TM)
i7-2600K CPU @
3.40GHz</td>
</tr>
<tr>
<td>RAM:</td>
<td>8 GB</td>
</tr>
<tr>
<td>Disk:</td>
<td>Intel
SSDSA2CW080G3
(SSD)</td>
</tr>
<tr>
<th
colspan="2">Software:</th>
</tr>
<tr>
<td>Operating
System:</td>
<td>GNU/Linux
(Xubuntu
12.04.1,
64bit)</td>
</tr>
<tr>
<td>Transcoding
tool:</td>
<td>FFmpeg
(version git
N-59183-g3e62654,
Dec 17 2013)</td>
</tr>
</tbody>
</table>
<br>
<table>
<tbody>
<tr>
<td>Video
source file:</td>
<td
colspan="6"> <a
href="http://media.xiph.org/video/derf/y4m/football_422_ntsc.y4m"
rel="noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">VQEG reference video "football"</a> (NTSC-SD,
720x486px,
30fps,
yuv422p, 8bpc)
</td>
</tr>
<tr>
<th>Codec</th>
<th>Encoding</th>
<th>Decoding</th>
<th>Filesize</th>
<th>% of
uncompressed</th>
<th>Implementation</th>
<th>Details</th>
</tr>
<tr>
<td><a
href="http://www.av-rd.com/knowhow/video/comparison_video_codecs_containers.html#codec_ffv1"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">FFV1</a> (version 3)</td>
<td>216 fps</td>
<td>277 fps</td>
<td>111 MiB</td>
<td>46.1%</td>
<td><a
href="http://en.wikipedia.org/wiki/Libavcodec"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">libavcodec (FFmpeg)</a></td>
<td> <a
href="http://www.av-rd.com/knowhow/video/test_results/football-720x486i30/ffv1.3-libavcodec_ffmpeg_avi.log"
type="text/plain" rel="noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">log</a>, <a
href="http://www.av-rd.com/knowhow/video/test_results/football-720x486i30/ffv1.3-libavcodec_ffmpeg_avi.framemd5"
type="text/plain" rel="noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">framemd5</a></td>
</tr>
</tbody>
</table>
<font
face="Courier
New, Courier,
monospace"> <br>
</font><br>
<table>
<tbody>
<tr>
<td>Video
source file:</td>
<td
colspan="6"> <a
href="http://media.xiph.org/video/derf/y4m/park_joy_1080p50.y4m"
rel="noreferrer
noreferrer
noreferrer
noreferrer
noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">SVT reference video "park joy"</a>
(full-HD/1080p,
1920x1080px,
50fps,
yuv420p, 8bpc)
</td>
</tr>
<tr>
<th>Codec</th>
<th>Encoding</th>
<th>Decoding</th>
<th>Filesize</th>
<th>% of
uncompressed</th>
<th>Implementation</th>
<th>Details</th>
</tr>
<tr>
<td><a
href="http://www.av-rd.com/knowhow/video/comparison_video_codecs_containers.html#codec_ffv1"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">FFV1</a> (version 3)</td>
<td>31 fps</td>
<td>63 fps</td>
<td>879 MiB</td>
<td>57.2%</td>
<td><a
href="http://en.wikipedia.org/wiki/Libavcodec"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">libavcodec (FFmpeg)</a></td>
<td> <a
href="http://www.av-rd.com/knowhow/video/test_results/park_joy-1920x1080p50/ffv1.3-libavcodec_ffmpeg_avi.log"
type="text/plain" rel="noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">log</a>, <a
href="http://www.av-rd.com/knowhow/video/test_results/park_joy-1920x1080p50/ffv1.3-libavcodec_ffmpeg_avi.framemd5"
type="text/plain" rel="noreferrer noreferrer noreferrer noreferrer
noreferrer
noreferrer"
target="_blank"
moz-do-not-send="true">framemd5</a></td>
</tr>
</tbody>
</table>
<font
face="Courier
New, Courier,
monospace"> <br>
<br>
</font><br>
<font
face="Courier
New, Courier,
monospace"><font
face="Courier
New, Courier,
monospace"><font
face="Courier
New, Courier,
monospace"><font
face="Courier
New, Courier,
monospace">PAL-SD
720x576 </font><font
face="Courier
New, Courier,
monospace">stored
as YUV422</font><font
face="Courier
New, Courier,
monospace">,
10 bpc (bits
per
component),
instead of the
tested 8 bpc
above, seems
to me would
have enlarged
the the
filesizes with
about 25%, or
to about 40
GB/hr with
FFV1 lossless
compressed. </font></font></font><br>
<br>
Although the
FFV1 compression
results above
obviously used
yuv422p, 8bps
source SD and
FHD files as
input, it seems
for me that the
encoding speeds
at 216 fps and
31 fps for SD
and FHD
respectively,
assumingly
should manage
realtime FFV1
encoding and
streaming of PAL
SD and HDV at 25
fps as well,
especially with
a faster i7-6700
x 8 cpu.
Comments here?<br>
<br>
<br>
5. Related
2021-[Cin]
threads as
background
references<br>
<br>
[Cin] hdmi
capture card
(with v4l2)<br>
<a
href="https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg02865.html"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg02865.html</a><br>
<br>
[Cin] offtopic:
Digitize and
record Video
with A/D USB
adapters<br>
<a
href="https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg03269.html"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg03269.html</a><br>
<br>
[Cin] offtopic:
HDMI capture<br>
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[Cin] Is SD and
HD 422 Video
Capture
obtainable with
V4L(2)?<br>
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[Cin]
Uncompressed
video to
lossless
compression
FFV1/MKV<br>
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