[Cin] Analog S-Video or HDV capture via HDMI-USB to FFV1.mkv in realtime
Andrew Randrianasulu
randrianasulu at gmail.com
Thu Feb 9 01:34:42 CET 2023
чт, 9 февр. 2023 г., 03:14 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>
> Den 08.02.2023 23:16, skrev Andrew Randrianasulu:
>
>
>
> чт, 9 февр. 2023 г., 01:13 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>>
>>
>> Den 08.02.2023 22:47, skrev Andrew Randrianasulu:
>>
>>
>>
>> чт, 9 февр. 2023 г., 00:38 Terje J. Hanssen <terjejhanssen at gmail.com>:
>>
>>>
>>>
>>> Den 08.02.2023 19:15, skrev Andrew Randrianasulu:
>>>
>>>
>>>
>>> ср, 8 февр. 2023 г., 20:53 Terje J. Hanssen <terjejhanssen at 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 at gmail.com>:
>>>>
>>>>>
>>>>>
>>>>> Den 08.02.2023 14:21, skrev Andrew Randrianasulu:
>>>>>
>>>>>
>>>>>
>>>>> ср, 8 февр. 2023 г., 14:47 Terje J. Hanssen <terjejhanssen at gmail.com>:
>>>>>
>>>>>>
>>>>>>
>>>>>> Den 08.02.2023 02:38, skrev Andrew Randrianasulu:
>>>>>>
>>>>>>
>>>>>>
>>>>>> ср, 8 февр. 2023 г., 04:08 Terje J. Hanssen <terjejhanssen at gmail.com
>>>>>> >:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Den 08.02.2023 00:52, skrev Andrew Randrianasulu:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ср, 8 февр. 2023 г., 01:35 Terje J. Hanssen via Cin <
>>>>>>> cin at 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?
>
> ffmpeg -hide_banner -f pulse -i default -f v4l2 -framerate 25 -video_size
> 1280x720 -i /dev/video0 -codec:v ffv1 -level 3 -codec:a pcm_s16le -f
> matroska 1280x720_2_ffv1.mkv
>
> ffprobe -hide_banner 1280x720_2_ffv1.mkv
> Input #0, matroska,webm, from '1280x720_2_ffv1.mkv':
> Metadata:
> ENCODER : Lavf58.76.100
> Duration: 00:00:32.01, start: 0.000000, bitrate: 59320 kb/s
> Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p(tv, progressive),
> 1280x720, 10 fps, 10 tbr, 1k tbn, 1k tbc (default)
> Metadata:
> ENCODER : Lavc58.134.100 ffv1
> DURATION : 00:00:30.200000000
> Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
> (default)
> Metadata:
> ENCODER : Lavc58.134.100 pcm_s16le
> DURATION : 00:00:32.012000000
>
>
> Is 4KVC00 from "V AV access" still the best option as replacement?
>
Well, at least they have english-speaking site, so you can ask few tech
questions there?
But you can try to chase some of those new ms2130 (!) devices ....
some ppl on videohelp forum use avermedia's usb unit for attempted 576i
capture, but device outputs pseudo-progressive, so for recovering
interlaced signal you need some processing anyway ?!
https://forum.videohelp.com/threads/406125-Panasonic-DMR-Avermedia-Extremecap-Virtualdub-refuse-to-capture-576i-UT
also, as timesink you can check ld-decode thread in same subforum, project
definitely alive but requires real hardware mods to vcr and yet another
capture card for capturing raw RF signal from tape head!
>
>
>> Thanks for useful help!
>>
>>
>> see
>>
>> https://patchwork.kernel.org/project/alsa-devel/patch/20200702071433.237843-1-marcan@marcan.st/#23469437
>>
>> Also, ms2109 confirmed .. :(
>>
>>
>>
>>> cat /proc/asound/cards
>>> 0 [MS2109 ]: USB-Audio - MS2109
>>> MacroSilicon MS2109 at usb-0000:00:14.0-5, high
>>> speed
>>> 1 [Camera ]: USB-Audio - USB 2.0 Camera
>>> Sonix Technology Co., Ltd. USB 2.0 Camera at
>>> usb-0000:00:14.0-11, high speed
>>> 2 [PCH ]: HDA-Intel - HDA Intel PCH
>>> HDA Intel PCH at 0xdf420000 irq 139
>>> 3 [NVidia ]: HDA-Intel - HDA NVidia
>>> HDA NVidia at 0xdf080000 irq 17
>>>
>>> arecord -L
>>> null
>>> Discard all samples (playback) or generate zero samples (capture)
>>> sysdefault
>>> Default Audio Device
>>> speexrate
>>> Rate Converter Plugin Using Speex Resampler
>>> pulse
>>> PulseAudio Sound Server
>>> upmix
>>> Plugin for channel upmix (4,6,8)
>>> default
>>> Default ALSA Output (currently PulseAudio Sound Server)
>>> sysdefault:CARD=MS2109
>>> MS2109, USB Audio
>>> Default Audio Device
>>> front:CARD=MS2109,DEV=0
>>> MS2109, USB Audio
>>> Front output / input
>>> sysdefault:CARD=Camera
>>> USB 2.0 Camera, USB Audio
>>> Default Audio Device
>>> front:CARD=Camera,DEV=0
>>> USB 2.0 Camera, USB Audio
>>> Front output / input
>>> sysdefault:CARD=PCH
>>> HDA Intel PCH, A
>>>
>>
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