Den 27.05.2025 21:29, skrev Andrew Randrianasulu:
On Tue, May 27, 2025 at 10:47 PM Terje J. Hanssen
<[email protected]> wrote:
Den 27.05.2025 16:28, skrev Andrew Randrianasulu:
On Tue, May 27, 2025 at 7:02 PM Terje J. Hanssen via Cin
<[email protected]> wrote:
Den 27.05.2025 12:54, skrev Terje J. Hanssen:
I tried to Record camcorder video stream via v4l2 and hdmi-usb3 capture as
input device.
ms2130 is more powerful but else similar to the usb2 EasyCap device example
described in the CinGG manual
https://cinelerra-gg.org/download/CinelerraGG_Manual/Use_Case_1_a_EasyCap.html
My Sony FX7-E 1080i50 HDV camcorder was connected via HDMI to a ms2130 usb3
capture card.
My procedure description here on openSUSE Tumbleweed-Slowroll, kernel
6.12.30-1.0.4.sr20250501-longterm
~/Applications> ./CinGG-20250430-x86_64.AppImage
Cinelerra Infinity - built: Apr 30 2025 07:18:32
1) Settings > Preferences > Record
File format: FFMPEG mp4
Video In:
Record driver: Video4Linux2 /dev(video0
The first thing I noticed was that default Record video setting was SD NTSC,
not PAL as else according to my time zone.
Could this possibly be changed as else?
Frames to record on disk: 30 (default)?
Changed frame to a camcorder resolution and fps supported by v4l2 and ms2130:
Frame: 1920 x 1080 (was default NTSC SD)
fps: 50 (progressive)
File > Record r
Two windows opened, one showing the running record time etc. and the other the
camera window image.
Unhappily, when I reconnected the camcorder to re-test today, the second window
with the camera image did not longer open!!
I've tried to reset the machine and camcorder, but no. Did also a test with
system ffplay (when the v4l2 was free again) and it worked.
Obviously here is something that causes this confusing issue, but what? load
straty, a changed setting or something else?
Happily the window opened yesterday, so I know the should work.
I understand this can be difficult to troubleshoot without a similar setup.
There is checkbox named Monitor Video. Be sure you have it set.
Yes, thanks it works again.
I usually set all parameters (like frame size, framerate, type of
Video Input device) in Recording tab.
Yes, but I wonder what these default box values mean?
Frames to record to disk at a time: 30
Frames to buffer in device: 2
Positioning: Software timing
I left first two as defaults, and sometimes for screenrecording set
Samples instead of Software timing (so it will write stream relative
to audio samples, adding or dropping frames as needed - makes audio
and video track match)
There should be std. for cingg wrench icon where you select type of
encoding (FFMPEG ..).
If you click it you get window with compression parameters.
I set Pixels there.
Yeah, thank you - now it's hopefully better in my fingers :)
First, with my Sony FX7E HDV 1080i50 camera connected via
HDMI-ms2130-USB3 - 4vl2
That is the camera's EIP native (w/o MPEG-2 compression) output via HDMI
handshake expected FHD 1080i 422,
or is it just the ms2130 via USB3 and v4l2 capability that is detected
below?
ffplay -hide_banner -f v4l2 -framerate 50 -i /dev/video0
Input #0, video4linux2,v4l2, from '/dev/video0':B sq= 0B
Duration: N/A, start: 290.793132, bitrate: 1658880 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1920x1080,
1658880 kb/s, 50 fps, 50 tbr, 1000k tbn
v4l2-ctl -V
Format Video Capture:
Width/Height : 1920/1080
Pixel Format : 'YUYV' (YUYV 4:2:2)
Field : None
Bytes per Line : 3840
Size Image : 4147200
Colorspace : sRGB
Transfer Function : Rec. 709
YCbCr/HSV Encoding: ITU-R 601
Quantization : Default (maps to Limited Range)
Flags :
-----------------
So I tested two additional mpeg2-hdv and mpeg2_hq recordings with CinGG
that works ok:
1) mpeg2_hdv_mpeg + mp2
---------------------------------------------
1920X1080
50fps
mpeg1_mp2.mpeg (no PCM available)
mpeg2_hdv_mpeg
yuv422p (default yuv420, shouldn't 422 be detected automatic from the
input?)
BC_DisplayInfo::gl_fb_config failed
DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080 1600x1200
1360x768 1280x1024 1280x960 1280x720 1024x768 800x600 720x576 720x480
640x480"
v4l2 s_fmt 1920x1080 YUYV
DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Unsuitable«ioctl» for device
-------
ffprobe -hide_banner CinGG_Record_mpeg2_hdv_video+mp2_audio.mpeg
Input #0, mpeg, from 'CinGG_Record_mpeg2_hdv_video+mp2_audio.mpeg':
Duration: 00:00:09.31, start: 0.509978, bitrate: 25439 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (4:2:2), yuv422p(tv,
bt709/unknown/unknown, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 50
fps, 50 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 7110656 vbv_delay: N/A
Stream #0:1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16p, 384 kb/s
-------
My comments:
The default 25Mbps video bitrate is just like mpeg2/ MP@H-14 HDV 1080i50
420 on tape.
Max allowed is 60 Mbps
PCM audio is missing
============
2) mpeg2_hq_mpeg + mp2
-------------------------------------------
1920X1080
50fps
mpeg1_mp2.mpeg (no PCM available)
mpeg2_hq_mpeg
yuv422p (default yuv420, shouldn't 422 be detected automatic from the
input?)
DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080 1600x1200
1360x768 1280x1024 1280x960 1280x720 1024x768 800x600 720x576 720x480
640x480"
v4l2 s_fmt 1920x1080 YUYV
DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Unsuitable«ioctl» for device
-----------
ffprobe -hide_banner CinGG_Record_mpeg2_hq_video+mp2_audio.mpeg
Input #0, mpeg, from 'CinGG_Record_mpeg2_hq_video+mp2_audio.mpeg':
Duration: 00:00:11.55, start: 0.509978, bitrate: 6379 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (4:2:2), yuv422p(tv,
bt709/unknown/unknown, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 50
fps, 50 tbr, 90k tbn
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 1130496 vbv_delay: N/A
Stream #0:1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16p, 384 kb/s
------
My comments:
The default 6.37Mbps video bitrate is not very "hq", more like a SD DVD
bitrate
PCM audio is missing
=====================
Sometime in the future, additional presets (especial 422p) from common
MPEG-2 Profile/Level combinations could be useful
https://en.wikipedia.org/wiki/H.262/MPEG-2_Part_2#Video_profiles_and_levels
I have yet to find where to set color subsampling yuv422p, bitrate, quality
profile etc
I recorded three test file types with their defaults, and all got yuv420p
CinGG_Record1.mp4
Duration: 00:00:09.05, start: 0.000000, bitrate: 5044 kb/s
Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
bt709/unknown/unknown, progressive), 1920x1080, 4952 kb/s, 50 fps, 50 tbr,
12800 tbn (default)
CinGG_Record2.mkv
Duration: 00:00:13.66, start: -0.007000, bitrate: 890 kb/s
Stream #0:0: Video: vp9 (Profile 0), yuv420p(tv, bt709/unknown/unknown),
1920x1080, 50 fps, 50 tbr, 1k tbn
CinGG_Record3.mpeg
Duration: 00:00:22.26, start: 0.520000, bitrate: 2321 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv,
bt709/unknown/unknown, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 50 fps, 50
tbr, 90k tbn
Note that in your case while you record SD it gets upscaled by your
svideo -> hdmi and hdmi to usb converters to 1080p50
There is red button and above it filename input field. Put
path/filename there, hit Record, and it should start recording to that
file.
In case you played with contrast/brightness settings (cingg uses its
own set for v4l devices) you can run guvcview and restore them to
their default values
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