[Cin] CinGG Analog S-Video to Digital HDMI converter + ms2130 UHD HDMI-USB3 Capture card
Andrew Randrianasulu
randrianasulu at gmail.com
Mon May 5 00:12:58 CEST 2025
пн, 5 мая 2025 г., 01:02 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>
> Den 04.05.2025 15:42, skrev Andrew Randrianasulu:
>
>
>
> 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?
>
>
> It is easier and faster for me to reboot than to creep under the table and
> unplug from the WS backplane :)
> There is the only working USB3 port, while it tend to hang on the
> frontpanel. I read somewhere once that shared USB buses may have such
> problems on Linux.
>
>
>
> 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 ... )
>
>
> Thank you for the tip and reminder regarding alsa input. I also found a
> FFmpeg wiki: Capture / V4L2_ALSA that helped me
> https://trac.ffmpeg.org/wiki/Capture/V4L2_ALSA
>
> arecord -L
>
> null
> Discard all samples (playback) or generate zero samples (capture)
> sysdefault
> Default Audio Device
> speexrate
> Rate Converter Plugin Using Speex Resampler
> pipewire
> PipeWire Sound Server
> upmix
> Plugin for channel upmix (4,6,8)
> default
> Default ALSA Output (currently PipeWire Media Server)
> sysdefault:CARD=UHD
> USB3.0 UHD, USB Audio
> Default Audio Device
> front:CARD=UHD,DEV=0
> USB3.0 UHD, USB Audio
> Front output / input
> sysdefault:CARD=PCH_1
> HDA Intel PCH, ALC897 Analog
> Default Audio Device
> front:CARD=PCH_1,DEV=0
> HDA Intel PCH, ALC897 Analog
> 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
>
>
> I used -i hw:CARD=UHD,DEV=0 as working alsa input device for ffmpeg below
> ------------------------
>
> Capture MPEG-2 File with 422 Video an PCM_DVD Audio Encoding
>
> cd /Videoklipp/HDMI-USB3_Capture
>
> Reboot camcorder to clean up v4l2 buffer first:
>
> ffmpeg -hide_banner -f v4l2 -input_format yuyv422 -video_size 720x576
> -framerate 50 -i /dev/video0 -f alsa -ac 2 -i hw:CARD=UHD,DEV=0 -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+alsa_ms2130.mpg
>
> Input #0, video4linux2,v4l2, from '/dev/video0':
> Duration: N/A, start: 247.290426, bitrate: 331776 kb/s
> Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576,
> 331776 kb/s, 50 fps, 50 tbr, 1000k tbn
> [aist#1:0/pcm_s16le @ 0x558f7224bf00] Guessed Channel Layout: stereo
> Input #1, alsa, from 'hw:CARD=UHD,DEV=0':
> Duration: N/A, start: 1746391255.237803, bitrate: 1536 kb/s
> Stream #1:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
> Stream mapping:
> Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg2video (native))
> Stream #1:0 -> #0:1 (pcm_s16le (native) -> pcm_dvd (native))
> Press [q] to stop, [?] for help
> [mpeg2video @ 0x558f72233280] 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+alsa_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
> Stream #0:1: Audio: pcm_dvd, 48000 Hz, stereo, s16, 1536 kb/s
> Metadata:
> encoder : Lavc61.19.101 pcm_dvd
> [out#0/vob @ 0x558f7224c200] video:18921KiB audio:3756KiB subtitle:0KiB
> other streams:0KiB global headers:0KiB muxing overhead: 1.320964%
> frame= 1000 fps= 50 q=2.5 Lsize= 22976KiB time=00:00:19.98
> bitrate=9420.4kbits/s speed=0.998x
>
> Stopped automatic with frame=1000
> --------
>
> du -sh *
> 23M 720x576_50fps+alsa_ms2130.mpg
> 19M 720x576_50fps_ms2130.mpg
> --------
>
> ffprobe -hide_banner 720x576_50fps+alsa_ms2130.mpg
>
> Input #0, mpeg, from '720x576_50fps+alsa_ms2130.mpg':
> Duration: 00:00:20.01, start: 0.520000, bitrate: 9408 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
> Stream #0:1[0xa0]: Audio: pcm_dvd, 48000 Hz, stereo, s16, 1536 kb/s
>
>
> ========================================
>
>
> -----------------------
>
>
> 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?
>
> I don't see real drawback it makes progressive 50p PAL video output.
>
>
> Does this device come with manual of any sort? Any Windows utility perhaps?
>
>
> This is the ms2130 HDMI-USB3 dongle we also discussed in older threads:
> https://www.aliexpress.com/item/1005004883158574.html
>
> https://www.cnx-software.com/2022/11/07/ms2130-based-4k-hdmi-to-usb-3-0-video-capture-dongle-sells-for-19/
> https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg05587.html
>
> The AV S-Video to HDMI converter is this one
>
> https://www.ebay.com.au/itm/356431236663?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20231107084023%26meid%3Dbe9608c9e82b4402bdf76dd76348ab53%26pid%3D101875%26rk%3D3%26rkt%3D4%26sd%3D405137532923%26itm%3D356431236663%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DSimVIDwebV3WithCPCExpansionEmbeddingSearchQuerySemanticBroadMatchSingularityRecallReplaceKnnV4WithVectorDbNsOptHotPlRecall%26brand%3DUnbranded&_trksid=p2332490.c101875.m1851&itmprp=cksum%3A356431236663be9608c9e82b4402bdf76dd76348ab53%7Cenc%3AAQAKAAABYHKEKKNMUePryBh1zZl0qrjonWK6%252Bbjh8v6%252FxTRbw1Loxqx736BoO2V7ozv6W4xuOBJjwGhPLWk9lnRB2teM6PFgOrZGVcTwpTth7MW79p066SWQrB1VasW1Di58xl1RMBXsH%252BaNxpzil0t8bdqbPkgJlZgvtHVYNSkxo5xG%252Bq21xDVUvrBLotjMgH%252FqV5wXQshGzZM4R6lRyvrYsaYO6TKvrPFmelkCTCubM5eKn0qdO3WG4prHt35axM0b1AnPHppmlHMdGYmjckTyOKNM9%252FV6GLsHrR8V%252Ff%252B4IzCQPxMALQwAlk93n4I9O8AtpmJfVUqsoKsJZFWDdLSsj%252B4SwyzNEGDD0PvOh7nWjXVZBIKMAXxQ94%252B6ePFlKMbiIx4MUcjDAsxbXWMGCAgmUAUvyT8%252FjaimC0vYNMPEguAR4RrTGwG3aZFugrXdz9WAUWrYTwBHrcQRD06DIrkiCLvdErY%253D%7Campid%3APL_CLK%7Cclp%3A2332490&itmmeta=01JTDZ3923JE7AHB2E0118810J
>
>
> -------------
>>
>> 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?
>
>
> No, next test also stopped at frame=1000
> Maybe this is some security default for "still" camcorder (Sony TR2000) on
> a desk mount where the image is not changed or moved.
> I have not tested playback of real S-video tape recordings.
>
try to remove "-t 20" part of ffmpeg command line? or change it to 60
(seconds) or something suitable for longer tests ...
at least AV to hdmi box should come with manual ;)
hopefully there is copy somewhere online ...
Sorry, I missed initially that you use TWO devices to get s-video into your
workstation. Yes, it was in email subject line.
Happy capturing!
>
>
>
>> ----------------
>>
>> 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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