[Cin] CinGG Analog S-Video to Digital HDMI converter + ms2130 UHD HDMI-USB3 Capture card
Andrew Randrianasulu
randrianasulu at gmail.com
Sun May 4 15:42:02 CEST 2025
вс, 4 мая 2025 г., 16:31 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>
> Den 04.05.2025 05:49, skrev Andrew Randrianasulu:
>
>
>
> вс, 4 мая 2025 г., 01:37 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>>
>> Den 03.05.2025 13:00, skrev Terje J. Hanssen:
>>
>>
>> Den 02.05.2025 21:42, skrev Andrew Randrianasulu:
>>
>>
>>
>> пт, 2 мая 2025 г., 22:37 Terje J. Hanssen <terjejhanssen at gmail.com>:
>>
>>> https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg05748.html
>>>
>>> I contine this new thread with an short extract from the long growing
>>> [Cin] ms2130 HDMI-USB3 UHD capture card - not quite as expected?
>>>
>>> But shouldn't a 422 and not a 420 output format be created?
>>>
>>> >> it seems in some cases ffmpeg not geared towards preserving most
>>> information, just picks up most commonly defined/first pixel format.
>>> >> Try mpeg2video as output codec, and/or specify pixel format (pix_fmt)
>>> more explicitly before output's filename?
>>>
>>> >>> Could you possibly examplify the latter?
>>>
>>> >>>> I think I just theorized ffmpeg may try to get some info from alsa
>>> device file directly, as it tries with /dev/video. But I never >>>> tried
>>> this way, so I can be totally wrong!
>>>
>>> -------------------------------
>>>
>>> Instead of 50i (pal interlaced fields), I try 50 fps (progressive) that
>>> at least is a pal frequence.
>>>
>>> And yes, it seems from the output that ffmpeg uses mpeg1video as default
>>> output codec.
>>>
>>> Furter I try to combine the current line
>>>
>>> ffmpeg -hide_banner -f v4l2 -input_format yuyv422 -video_size 720x576
>>> -framerate 25 -t 20 -i /dev/video2 out-720x576_ms2130.mpeg
>>>
>>>
>>> with and utilize the syntax developed 2021 for "Blu-ray compliant MPEG-2
>>> SD video with LPCM audio"
>>>
>>> ffmpeg -i dv28.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 25M -maxrate 25M
>>> -minrate 25M -bufsize 45M -muxrate 45M -dc 10 -c:a pcm_s16be -f vob
>>> dv28.mpg
>>>
>>> and for the current ongoing "DVD compliant MPEG-2 Video and PCM Audio"
>>>
>>> ffmpeg -hide_banner -i dv01.dv -c:v mpeg2video -refs 1 -bf 2 -b:v 8M
>>> -maxrate 8M -minrate 8M -bufsize 20M -muxrate 11M -dc 10 -c:a pcm_dvd -f
>>> vob -flags +ilme+ildct dv01.mpg
>>>
>>> to first
>>>
>>> ffmpeg -hide_banner -f v4l2 -input_format yuyv422 -video_size 720x576
>>> -framerate 50 -c:v mpeg2video -refs 1 -bf 2 -b:v 8M -maxrate 8M -minrate 8M
>>> -bufsize 20M -muxrate 11M -dc 10 -c:a pcm_dvd -f vob -t 20 -i /dev/video2
>>> 720x576_50p_ms2130.mpg
>>> Option b:v (video bitrate (please use -b:v)) cannot be applied to input
>>> url /dev/video2 -- you are trying to apply an input option to an output
>>> file or vice versa. Move this option before the file it belongs to.
>>> Error parsing options for input file /dev/video2.
>>> Error opening input files: Invalid argument
>>>
>>>
>>> and next revised with no output. That is I need help to debug the syntax
>>> error:
>>>
>>> ffmpeg -hide_banner -f v4l2 -input_format yuyv422 -video_size 720x576
>>> -framerate 50 -i /dev/video2 -c:v mpeg2video -refs 1 -bf 2 -b:v 8M -maxrate
>>> 8M -minrate 8M -bufsize 20M -muxrate 11M -dc 10 -c:a pcm_dvd -f vob -t 20
>>> 720x576_50p_ms2130.mpg
>>> [video4linux2,v4l2 @ 0x55db770ef9c0] Dequeued v4l2 buffer contains
>>> corrupted data (0 bytes).
>>> Input #0, video4linux2,v4l2, from '/dev/video2':
>>> Duration: N/A, start: 0.000000, bitrate: 331776 kb/s
>>> Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576,
>>> 331776 kb/s, 50 fps, 50 tbr, 1000k tbn
>>> Stream mapping:
>>> Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (native))
>>> Press [q] to stop, [?] for help
>>> [video4linux2,v4l2 @ 0x55db770ef9c0] Dequeued v4l2 buffer contains
>>> corrupted data (0 bytes).
>>> Last message repeated 30 times
>>> [mpeg2video @ 0x55db77114f00] Warning vbv_delay will be set to 0xFFFF
>>> (=VBR) as the specified vbv buffer is too large for the given bitrate!
>>> Output #0, vob, to '720x576_50p_ms2130.mpg':
>>> Metadata:
>>> encoder : Lavf59.27.100
>>> Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, progressive),
>>> 720x576, q=2-31, 8000 kb/s, 50 fps, 90k tbn
>>> Metadata:
>>> encoder : Lavc59.37.100 mpeg2video
>>> Side data:
>>> cpb: bitrate max/min/avg: 8000000/8000000/8000000 buffer size:
>>> 20000000 vbv_delay: N/A
>>> frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A
>>> speed= 0x
>>> video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
>>> muxing overhead: unknown
>>> Output file is empty, nothing was encoded (check -ss / -t / -frames
>>> parameters if used)
>>>
>>>
>> well, I think framerate still 25 for 50i stream ....
>>
>> can you re-check last line with framerate parameter removed or changed
>> back to 25?
>>
>>
>> Ok, as this old post by my mistake already has been forwarded to the list
>> and replied, I will follow it up later today, but need to rig rig up my
>> camcorder and devices
>>
>>
>> Finally ready, I had to recall a lot since 2023.
>>
>> ls /dev/video*
>> /dev/video0 /dev/video1 /dev/video2 /dev/video3
>>
>>
>> for i in /dev/video*; do echo "$i"; udevadm info --query=all
>> --attribute-walk --name=$i | grep -E "name"; done
>> /dev/video0
>> ATTR{name}=="USB3.0 UHD: USB3.0 UHD"
>> /dev/video1
>> ATTR{name}=="USB3.0 UHD: USB3.0 UHD"
>> /dev/video2
>> ATTR{name}=="USB 2.0 Camera: HD 720P Webcam"
>> /dev/video3
>> ATTR{name}=="USB 2.0 Camera: HD 720P Webcam"
>>
>>
>> v4l2-ctl --list-devices
>> USB 2.0 Camera: HD 720P Webcam (usb-0000:00:14.0-11.2):
>> /dev/video2
>> /dev/video3
>> /dev/media1
>>
>> USB3.0 UHD: USB3.0 UHD (usb-0000:00:14.0-3):
>> /dev/video0
>> /dev/video1
>> /dev/media0
>>
>> As seen the HDMI-USB3 capture card + the S-Video/HDMI converter (with the
>> analog S-video camcorder) is now on /dev/video0
>> while the USB2 webcam is on /dev/video2
>>
>
>
> but what is on video1 ?
>
>
> Nothing as far as I can see(?). It seems both camera devices allocate or
> are associated with three devices each.
>
>
> it seems that whole thing fail at
>
> Dequeued v4l2 buffer contains corrupted data (0 bytes).
>
>
> I seems to happend when and after using unsupported fps
>
> Does anything else (guvcview, vlc ..) process video stream this usb3 UHD
> device?
>
> mplayer tv:// -demuxer tv ?
>
>
> Not that I use, but have not haven't found a way to verify it.
>
> However, I have recalled and found out more with progress.
>
> The most important it seems required to reboot the machine with the
> camcorder ON (video signal) on beforehand, before ffmpeg get the video
> input.
>
> Reboot also seems required to clean up v4L2 buffer after using unsupported
> fps ffplay or ffmpeg cause the
> "Dequeued v4l2 buffer contains corrupted data (0 bytes)."
> Hopefully there are a v4L command to easier cleanup the latter?
>
Does unpluggin and repluggin it helps without reboot?
Otherwise you probably want to talk to v4l2 maintainers or knowledgable
people at suse forums ...
>
> Beside the already listed Video4Linux devices, there are also
>
> cat /proc/asound/cards
>
> 0 [PCH_1 ]: HDA-Intel - HDA Intel PCH
> HDA Intel PCH at 0x4200910000 irq 168
> 1 [PCH ]: HDA-Intel - HDA Intel PCH
> HDA Intel PCH at 0x41300000 irq 169
> 2 [UHD ]: USB-Audio - USB3.0 UHD
> MACROSILICON USB3.0 UHD at usb-0000:00:14.0-3, super
> speed
> 3 [Camera ]: USB-Audio - USB 2.0 Camera
> Sonix Technology Co., Ltd. USB 2.0 Camera at
> usb-0000:00:14.0-11.2, high speed
>
>
> However, so far ffmpeg has yet to find any audio streams via v4l2 as seen
> below.
>
may be you need another -i so you can point ffmpeg at alsa or pulseaudio
audio capture device?
yes, this line grows bigger by the day ... )
S-vido as well as audio L/R cables are connected between the camcorder out
> and A/D converter IN.
> Maybe additional configuration is required (I didn't think the separate
> sound card (Behringer U-Phono should be necessary)
> ----------
>
> To list the v4l2 device capabilities;
>
> v4l2-ctl -d /dev/video0 --list-formats-ext
>
> ioctl: VIDIOC_ENUM_FMT
> Type: Video Capture
>
> [0]: 'YUYV' (YUYV 4:2:2)
> Size: Discrete 1920x1080
> 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 1600x1200
> 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 1360x768
> 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 1280x1024
> 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 1280x960
> 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 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 1024x768
> 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 800x600
> 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)
> Size: Discrete 720x480
> 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 640x480
> 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)
>
>
> That is supported 10-20-30-50-60 fps for all sizes, not 25 fps!
>
so it looks like it does some frame/field interpolation (for s-video input)
without letting user correct/disable this?
Does this device come with manual of any sort? Any Windows utility perhaps?
-------------
>
> Try the same test for /dev/video1
>
> v4l2-ctl -d /dev/video1 --list-formats-ext
>
> ioctl: VIDIOC_ENUM_FMT
>
> ===========
>
> ffmpeg listed available formats (supported pixel formats, video formats,
> and frame sizes) for a particular input device:
>
> ffmpeg -hide_banner -f v4l2 -list_formats all -i /dev/video0
>
> [video4linux2,v4l2 @ 0x55a384b214c0] Raw : yuyv422 :
> YUYV 4:2:2 : 1920x1080 1600x1200 1360x768 1280x1024 1280x960 1280x720
> 1024x768 800x600 720x576 720x480 640x480
> [in#0 @ 0x55a384b21200] Error opening input: Immediate exit requested
> Error opening input file /dev/video0.
>
> And similar test for /dev/video1
>
> ffmpeg -hide_banner -f v4l2 -list_formats all -i /dev/video1
>
> [video4linux2,v4l2 @ 0x557e1a5164c0] ioctl(VIDIOC_G_INPUT): Inappropriate
> ioctl for device
> [in#0 @ 0x557e1a516200] Error opening input: Inappropriate ioctl for device
> Error opening input file /dev/video1.
> Error opening input files: Inappropriate ioctl for device
>
> ===============
>
> With supported 50 fps specified, ffplay playback looks ok visually:
>
> ffplay -hide_banner -f v4l2 -input_format yuyv422 -video_size 720x576
> -framerate 50 /dev/video0
>
> Input #0, video4linux2,v4l2, from '/dev/video0':B sq= 0B
> Duration: N/A, start: 311.577886, bitrate: 331776 kb/s
> Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576,
> 331776 kb/s, 50 fps, 50 tbr, 1000k tbn
> ^Cterje at localhost:/Videoklipp/HDMI-USB3_Capture> sq= 0B
>
> ===============
>
> Capture DVD compatible MPG video (no audio found) with supported 50 fps
> progressive video.
> No Audio stream!?
>
> ffmpeg -hide_banner -f v4l2 -input_format yuyv422 -video_size 720x576
> -framerate 50 -i /dev/video0 -c:v mpeg2video -refs 1 -bf 2 -b:v 8M -maxrate
> 8M -minrate 8M -bufsize 20M -muxrate 11M -dc 10 -c:a pcm_dvd -f vob -t 20
> 720x576_50fps_ms2130.mpg
>
> Input #0, video4linux2,v4l2, from '/dev/video0':
> Duration: N/A, start: 323.195348, bitrate: 331776 kb/s
> Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576,
> 331776 kb/s, 50 fps, 50 tbr, 1000k tbn
> Stream mapping:
> Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (native))
> Press [q] to stop, [?] for help
> [mpeg2video @ 0x55e390580200] Warning vbv_delay will be set to 0xFFFF
> (=VBR) as the specified vbv buffer is too large for the given bitrate!
> Output #0, vob, to '720x576_50fps_ms2130.mpg':
> Metadata:
> encoder : Lavf61.7.100
> Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, progressive),
> 720x576, q=2-31, 8000 kb/s, 50 fps, 90k tbn
> Metadata:
> encoder : Lavc61.19.101 mpeg2video
> Side data:
> cpb: bitrate max/min/avg: 8000000/8000000/8000000 buffer size:
> 20000000 vbv_delay: N/A
> [out#0/vob @ 0x55e390581e00] video:18921KiB audio:0KiB subtitle:0KiB other
> streams:0KiB global headers:0KiB muxing overhead: 1.242550%
> frame= 1000 fps= 50 q=2.5 Lsize= 19156KiB time=00:00:19.98
> bitrate=7854.2kbits/s speed=0.998x
>
>
> Stopped automatic ! Why?
>
may be usb cable just moved a bit?
> ----------------
>
> du -sh *
>
> 19M 720x576_50fps_ms2130.mpg
>
>
> ffprobe -hide_banner 720x576_50fps_ms2130.mpg
>
> Input #0, mpeg, from '720x576_50fps_ms2130.mpg':
> Duration: 00:00:20.00, start: 0.520000, bitrate: 7846 kb/s
> Stream #0:0[0x1e0]: Video: mpeg2video (4:2:2), yuv422p(tv, progressive),
> 720x576 [SAR 1:1 DAR 5:4], 50 fps, 50 tbr, 90k tbn
> Side data:
> cpb: bitrate max/min/avg: 8000000/0/0 buffer size: 20004864
> vbv_delay: N/A
>
>
> The video file playback looks ok with correct SD aspect ratio using ffplay
> and VLC, though "1080P" is printer near the top-right corner.
>
hm ...... I hope this "overlay" can be disabled?
> ============================
>
>
>
>
>
>
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