чт, 9 февр. 2023 г., 03:14 Terje J. Hanssen <terjejhanssen@gmail.com>:

Den 08.02.2023 23:16, skrev Andrew Randrianasulu:
чт, 9 февр. 2023 г., 01:13 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 08.02.2023 22:47, skrev Andrew Randrianasulu:
чт, 9 февр. 2023 г., 00:38 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 08.02.2023 19:15, skrev Andrew Randrianasulu:
ср, 8 февр. 2023 г., 20:53 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 08.02.2023 16:45, skrev Terje J. Hanssen:
Den 08.02.2023 15:34, skrev Andrew Randrianasulu:
ср, 8 февр. 2023 г., 17:16 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 08.02.2023 14:21, skrev Andrew Randrianasulu:
ср, 8 февр. 2023 г., 14:47 Terje J. Hanssen <terjejhanssen@gmail.com>:
Den 08.02.2023 02:38, skrev Andrew Randrianasulu:

ср, 8 февр. 2023 г., 04:08 Terje J. Hanssen <terjejhanssen@gmail.com>:

Den 08.02.2023 00:52, skrev Andrew Randrianasulu:

ср, 8 февр. 2023 г., 01:35 Terje J. Hanssen via Cin <cin@lists.cinelerra-gg.org>:

Den 02.02.2023 01:46, skrev Terje J. Hanssen:

.......

but I prepare myself to test and use one method left with regards to "Personal Video Archiving".

Therefore I have ordered two selected, inexpensive devices (the urls here are just for English language):

1) Capture Card USB HDMI 4K to 1080P USB-C adapter (Speedy USB 3.2/3.1/3.0, 60 Hz and 1080p FHD.)
https://www.turascandinavia.com/en/products/computer/microphone-webcam/webcams/74257

Fluid video recordings without delays or distortions during live streaming

Linux not mentioned, but assumed this is a standard supported UVC. OBS and VLC is mentioned.

Then the first item, Hama Video Recording Stick, HDMI 4k - USB3.x is received. It promises:
"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".

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.

But according to Steve Mullen's V1 and FX7 handbook (not mentioned in the manual):

1. When the camera is operating, the EIP (Enhanced Image Processor) generates uncompressed 1440x1080i with a 4:2:2 color space. 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.

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
chip downscales 1440 to 1280 while it up-scales 540 to 720. The result is 720p50 or 720p60, which is output via HDMI.

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.

Did you tried to force specific format (uncompressed) before -i parameter for ffmpeg?

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:

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
[video4linux2,v4l2 @ 0x55944900e0c0] The driver changed the time per frame from 1/25 to 1/5

I also read a related issue and reply to this post at Superuser, where 1920x1080 was not supported on the webcam.
https://superuser.com/questions/1449252/ffmpeg-captures-from-uvc-dev-video0-in-any-resolution-except-for-1920x1080

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?

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.

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.

Someone here that have suggestion to possibly modified syntax or can verify that the driver doesn't manage this?

Another (setup) problem, there was no audio recorded or heard during playback!?

In the following I list the test command syntax I've collectedf and tried with shortened output (yet long):
To explain, I have also another USB 2.0 Webcam connected, beside the new HDMI-USB3 Videstick.

Verify the devices, drivers and formats:
---------------------------------------
dmesg | tail
[22706.060759] perf: interrupt took too long (2521 > 2500), lowering kernel.perf_event_max_sample_rate to 79250
[32105.561575] perf: interrupt took too long (3158 > 3151), lowering kernel.perf_event_max_sample_rate to 63250
[40586.477420] usb 1-5: USB disconnect, device number 2
[40599.099612] usb 1-5: new high-speed USB device number 5 using xhci_hcd
[40599.250960] usb 1-5: New USB device found, idVendor=534d, idProduct=2109, bcdDevice=21.00
[40599.250972] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[40599.250978] usb 1-5: Product: USB Video
[40599.250984] usb 1-5: Manufacturer: MACROSILICON
[40599.252310] usb 1-5: Found UVC 1.00 device USB Video (534d:2109)
[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
-----------------------------

lsusb
Bus 002 Device 003: ID 05e3:0732 Genesys Logic, Inc. All-in-One Cardreader
Bus 002 Device 002: ID 0bc2:2038 Seagate RSS LLC Expansion HDD
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 005: ID 534d:2109 MacroSilicon USB Video
Bus 001 Device 004: ID 0c45:6340 Microdia Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

udevadm info /dev/video* | egrep 'DEVNAME|ID_V4L_PRODUCT'
E: DEVNAME=/dev/video0
E: ID_V4L_PRODUCT=USB Video: USB Video
E: DEVNAME=/dev/video1
E: ID_V4L_PRODUCT=USB Video: USB Video
E: DEVNAME=/dev/video2
E: ID_V4L_PRODUCT=USB 2.0 Camera: HD 720P Webcam
E: DEVNAME=/dev/video3
E: ID_V4L_PRODUCT=USB 2.0 Camera: HD 720P Webcam

lsusb | egrep 'Video|Camera'
Bus 001 Device 005: ID 534d:2109 MacroSilicon USB Video
Bus 001 Device 004: ID 0c45:6340 Microdia Camera

--------------------

ll /dev/video*
crw-rw----+ 1 root video 81, 0 feb.   7 20:22 /dev/video0
crw-rw----+ 1 root video 81, 1 feb.   7 20:22 /dev/video1
crw-rw----+ 1 root video 81, 2 feb.   7 09:05 /dev/video2
crw-rw----+ 1 root video 81, 3 feb.   7 09:05 /dev/video3

-----------------------

v4l2-ctl --list-devices
USB 2.0 Camera: HD 720P Webcam (usb-0000:00:14.0-11):
        /dev/video2
        /dev/video3

USB Video: USB Video (usb-0000:00:14.0-5):
        /dev/video0
        /dev/video1

-------------------------

ffmpeg -f v4l2 -list_formats all -i /dev/video0
ffmpeg -hide_banner -f v4l2 -list_formats all -i /dev/video0
[video4linux2,v4l2 @ 0x556cf63570c0] Compressed:       mjpeg :          Motion-JPEG : 1920x1080 1600x1200 1360x768 1280x1024 1280x960 1280x720 1024x768 800x600 720x576 720x480 640x480
[video4linux2,v4l2 @ 0x556cf63570c0] Raw       :     yuyv422 :           YUYV 4:2:2 : 1920x1080 1600x1200 1360x768 1280x1024 1280x960 1280x720 1024x768 800x600 720x576 720x480 640x480
/dev/video0: Immediate exit requested

ffmpeg -hide_banner -f v4l2 -list_formats all -i /dev/video1
[video4linux2,v4l2 @ 0x5560c0bc70c0] ioctl(VIDIOC_G_INPUT): Inappropriate ioctl for device
/dev/video1: Inappropriate ioctl for device
----------------

v4l2-ctl --all
Driver Info (not using libv4l2):
        Driver name   : uvcvideo
        Card type     : USB Video: USB Video
        Bus info      : usb-0000:00:14.0-5
        Driver version: 5.14.21
        Capabilities : 0x84A00001
                Video Capture
                Metadata Capture
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps   : 0x04200001
                Video Capture
                Streaming
                Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
        Width/Height      : 1920/1080
        Pixel Format      : 'MJPG'
        Field             : None
        Bytes per Line    : 0
        Size Image        : 4147200
        Colorspace        : sRGB
        Transfer Function : Rec. 709
        YCbCr/HSV Encoding: ITU-R 601
        Quantization      : Default (maps to Full Range)
        Flags             :
Crop Capability Video Capture:
        Bounds      : Left 0, Top 0, Width 1920, Height 1080
        Default     : Left 0, Top 0, Width 1920, Height 1080
        Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 1920, Height 1080
Selection: crop_bounds, Left 0, Top 0, Width 1920, Height 1080
Streaming Parameters Video Capture:
        Capabilities     : timeperframe
        Frames per second: 30.000 (30/1)
        Read buffers     : 0
                     brightness 0x00980900 (int)    : min=-128 max=127 step=1 default=-11 value=-11
                       contrast 0x00980901 (int)    : min=0 max=255 step=1 default=148 value=148
                     saturation 0x00980902 (int)    : min=0 max=255 step=1 default=180 value=180
                            hue 0x00980903 (int)    : min=-128 max=127 step=1 default=0 value=0

-----------------

v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
        Index       : 0
        Type        : Video Capture
        Pixel Format: 'MJPG' (compressed)
        Name        : Motion-JPEG
                Size: Discrete 1920x1080
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)
                        Interval: Discrete 0.040s (25.000 fps)
                        Interval: Discrete 0.050s (20.000 fps)
                        Interval: Discrete 0.100s (10.000 fps)
               .........
                Size: Discrete 1280x720
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.020s (50.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)
                        Interval: Discrete 0.050s (20.000 fps)
                        Interval: Discrete 0.100s (10.000 fps)
                ......
                Size: Discrete 720x576
                        Interval: Discrete 0.017s (60.000 fps)
                        Interval: Discrete 0.020s (50.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)
                        Interval: Discrete 0.050s (20.000 fps)
                        Interval: Discrete 0.100s (10.000 fps)

well, it seems we know by now why this device was ...unexpensive.

Yes, I have a "90-days open order" and will start to search for another, better UVC video capture device.
The problem is the lack of definitive specifications, compared with my proprietary BMD devices.

it really seems to report only 5-10 fps at fullHD uncompresed, anything bigger is mjpeg ...

Type        : Video Capture
        Pixel Format: 'YUYV'
        Name        : YUYV 4:2:2
                Size: Discrete 1920x1080
                        Interval: Discrete 0.200s (5.000 fps)

This can absolutely not be what they promote as:
"Fluid video recordings without delays or distortions during live streaming, thanks to a picture frequency of 60 Hz and 1080p with Full HD".

https://superuser.com/questions/1449252/ffmpeg-captures-from-uvc-dev-video0-in-any-resolution-except-for-1920x1080

I also tried that link's suggested syntax
ffmpeg -y -t 15 -f video4linux2 -video_size 1920x1080 -input_format nv12 -timestamps abs -use_libv4l2 1 -i /dev/video0 out.mov
but it didn't work for me, just quitted ffmpeg with

Unrecognized option 'timestamps'.
Error splitting the argument list: Option not found

Looking at ffmpeg man pages at https://manpages.org/ffmpeg/1 there also is a similar video4linux2 syntax example

Grab and record the input of a video4linux2 device, leave the frame rate and size as previously set:
ffmpeg -f video4linux2 -input_format mjpeg -i /dev/video0 out.mpeg

video_size

    Set the video frame size. The argument must be a string in the form WIDTHxHEIGHT or a valid size abbreviation.

pixel_format

    Select the pixel format (only valid for raw video input).

input_format

    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.

But what should be set as input_format in this case?
YUYV ? (lowercase)
ffmpeg -hide_banner -f video4linux2 -input_format yuyv -i /dev/video0 out.mkv
[video4linux2,v4l2 @ 0x55b25017e0c0] No such input format: yuyv.
/dev/video0: Invalid argument
:(
Yes, 'yuyv422' at least not returned any errors, but just verified 5 fps from the encoded file

ffmpeg -hide_banner -f video4linux2 -input_format yuyv422 -i /dev/video0 out.mkv

ffprobe -hide_banner out.mkv
Input #0, matroska,webm, from 'out.mkv':
Metadata:
    ENCODER         : Lavf58.76.100
Duration: 00:00:12.40, start: 0.000000, bitrate: 2 kb/s
Stream #0:0: Video: vp9 (Profile 1), yuv422p(tv, progressive), 1920x1080, 5 fps, 5 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      ENCODER         : Lavc58.134.100 libvpx-vp9
      DURATION        : 00:00:12.400000000

Any idea why the audio:0kB from '-codec:a pcm_s16le' disappeared in the encoded files?

inxi -GA
Graphics: Device-1: NVIDIA GK208B [GeForce GT 730] driver: nouveau v: kernel
           Device-2: Microdia Camera type: USB driver: snd-usb-audio,uvcvideo
           Device-3: MacroSilicon USB Video type: USB driver: hid-generic,snd-usb-audio,usbhid,uvcvideo
           Display: server: SUSE LINUX 1.20.3 driver: loaded: nouveau unloaded: fbdev,modesetting,vesa
           resolution: 2560x1440~60Hz
           OpenGL: renderer: llvmpipe (LLVM 11.0.1 256 bits) v: 4.5 Mesa 21.2.4
Audio:     Device-1: Intel 100 Series/C230 Series Family HD Audio driver: snd_hda_intel
           Device-2: NVIDIA GK208 HDMI/DP Audio driver: snd_hda_intel
           Device-3: Microdia Camera type: USB driver: snd-usb-audio,uvcvideo
           Device-4: MacroSilicon USB Video type: USB driver: hid-generic,snd-usb-audio,usbhid,uvcvideo
           Sound Server-1: ALSA v: k5.14.21-150400.24.41-default running: yes
           Sound Server-2: PulseAudio v: 15.0 running: yes
           Sound Server-3: PipeWire v: 0.3.49 running: yes
I think for audio you need few more alsa switches:

https://askubuntu.com/questions/1451630/hdmi-capture-card-macrosilicon-ms2109-missing-audio-device-on-ubuntu-22-04

something like this but find/use your own alsa device :)
What I feel unused to is the need to set ffmpeg code both Audio and Video input format and input device respectively.
A couple of syntax examples for audio found:

ffmpeg \

-f alsa -ac 2 -i hw:CARD=HDMI,DEV=0
https://trac.ffmpeg.org/wiki/Capture/V4L2_ALSA

-f pulse -ac 2 -i default
https://dev.to/ethand91/how-to-record-webcam-video-and-audio-using-ffmpeg-419c

Suggestions here what to use from the listing below?
try -f pulse -i default, (or sysdefault) because your system already set it up as first rec. device?

for -f alsa try -i hw:CARD=MS2109,DEV=0

default audio should be 2 ch/48khz pcm
And the latter fit with my used encoding syntax?
I hope yes!

ffmpeg \

-codec:a pcm_s16le

Now I will disconnect the Blu-ray burner from its USB3 port on the backpanel and reconnect and retest Video capture there.

good luck, while I suspect for this specific device it will not improve framerates much due to chip used.

but please share your actual results!
Then i have run through the same test cycle. I could actually have stopped already after running "v4l2-ctl --list-formats-ext" with regards to the fps.
Yet I updated the encoding syntaxes and got the audio streams seemingly recorded. But for some some reason I could not hear any sound in my airphones.

check input levels in mixer?