[Cin] DV50 - the forgotten optimal codec for digitizing analog Hi8/S-video ?
Terje J. Hanssen
terjejhanssen at gmail.com
Thu Jun 12 22:33:07 CEST 2025
Den 12.06.2025 19:01, skrev Andrew Randrianasulu:
>
>
> чт, 12 июн. 2025 г., 19:45 Terje J. Hanssen via Cin
> <cin at lists.cinelerra-gg.org>:
>
> I have made another working ffmpeg command line without "-target
> pal-dv50" as seen below, and tried here to
> make a video preset for CinGG , but got errors and have questions:
>
> A related example:
> Is it a reason why Cingg preset for DVD doesn't use "-target
> pal-dvd" that I have used with ffmpeg before?
>
>
> I am not sure if this is 'composite' command line switch for ffmpeg as
> command line application or you can use it in our profiles.
>
> try and tell us now it works?
Not sure I understood what you meant here. But I did base my FFmpeg
command line on presets from WinFF, i.e for "PAL DVD HQ Fullscreen":
-f dvd -target pal-dvd -aspect 4:3 -vb 8000k -mbd rd -trellis 1
-flags +mv0 -cmp 0 -subcmp 2
As seen above, this WinFF preset make use of the related "-f dvd -target
pal-dvd"
https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg05766.html
In comparison Cingg's preset doesn't use ffmpeg's dvd target
cat dvd.dvd
dvd mpeg2video
s 720x480
r 30000/1001
pixel_format yuv420p
g 18
maxrate 9000000
minrate 0
bufsize 1835008
packetsize 2048
cin_bitrate=8000000
--------------------------
> dv50_pal.mov
> mov dvvideo
> # cin_pix_fmt=yuv422p
> # cin_scale=720x576
> # r=50
>
> there is
>
> ffmpeg/video/dv_pal.qt
>
> try it?
Yeah, thanks for this tip which looks good, interesting and promising ;)
I noticed also this preset, but didn't bench test it. Now, seemingly
".qt" tells me it means "quick-time" (not qt gui)
cat dv_pal.qt
mov dvvideo
cin_pix_fmt=yuv420p
field_order=bb
# 720x576, 25 fps
----------
Applications/CinGG-20250430-x86_64.AppImage
Cinelerra Infinity - built: Apr 30 2025 07:18:32
git://git.cinelerra-gg.org/goodguy/cinelerra.git
-------
Shift P:
FFMPEG qt
Audio wrench:
pcm_s16le
Video wrench:
dv_pal.qt
yuv422p
Video4Linux /dev/video0
30 frames to record at a time (default, correct? should it be set to 50fps?)
720 x 576
50.000 frame rate for recording
r(ecording)
Start record:
DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080 1600x1200
1360x768 1280x1024 1280x960 1280x720 1024x768 800x600 720x576 720x480
640x480"
v4l2 s_fmt 720x576 YUYV
DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Inappropriate ioctl for device
-----------
And interestingly, the short cam test with Sony TR2000 Hi8 PAL connected
via the A/D converter, the result also looks promising :)
---------
ffprobe -hide_banner Cgg_dv_pal+pcm.qt
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Cgg_dv_pal+pcm.qt':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf61.1.100
Duration: 00:00:11.06, start: 0.000000, bitrate: 116736 kb/s
Stream #0:0[0x1]: Video: dvvideo (dv5p / 0x70357664), yuv422p(bottom
first), 720x576 [SAR 16:15 DAR 4:3], 57600 kb/s, 50 fps, 50 tbr, 12800
tbn (default)
Metadata:
handler_name : VideoHandler
vendor_id : FFMP
Stream #0:1[0x2]: Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
stereo, s16, 1536 kb/s (default)
Metadata:
handler_name : SoundHandler
vendor_id : [0][0][0][0]
--------
mediainfo Cgg_dv_pal+pcm.qt
General
Complete name : Cgg_dv_pal+pcm.qt
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt 0000.02 (qt )
File size : 154 MiB
Duration : 11 s 60 ms
Overall bit rate mode : Constant
Overall bit rate : 117 Mb/s
Frame rate : 50.000 FPS
Writing application : Lavf61.1.100
FileExtension_Invalid : braw mov mp4 m4v m4a m4b m4p
m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Video
ID : 1
Format : DV
Codec ID : dv5p
Duration : 11 s 60 ms
Bit rate mode : Constant
Bit rate : 24.4 Mb/s
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 50.000 FPS
Original frame rate : 25.000 FPS
Standard : PAL
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 8 bits
Scan type : Interlaced !!?
Scan type, store method : Separated fields (2 fields
per block)
Scan order : Bottom Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 1.179
Stream size : 32.2 MiB (21%)
Audio
ID : 2
Format : PCM
Format settings : Little / Signed
Codec ID : sowt
Duration : 11 s 42 ms
Bit rate mode : Constant
Bit rate : 1 536 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Bit depth : 16 bits
Stream size : 2.02 MiB (1%)
Default : Yes
Alternate group : 1
>
>
>
> Shift P:
> FFMPEG mov
>
> Audio wrench enabled first: Didn't find simple pcm_s16le and tried
> dnxhr_pcm_s16.mov, but got mismatch and disabled it
> Video wrench: dv50p.mov
>
> Video4Linux /dev/video0
> 50 frames to record at a time
> 720 x 576
> 50.000 frame reate for recording
>
> r(ecording)
> Start record:
>
> cin
> Cinelerra Infinity - built: May 18 2025 05:16:59
> ........
>
> DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080
> 1600x1200 1360x768 1280x1024 1280x960 1280x720 1024x768
> 800x600 720x576 720x480 640x480"
> v4l2 s_fmt 720x576 YUYV
> DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Inappropriate ioctl
> for device
> int FFMPEG::init_encoder(const char*):
> mismatch audio/video file format:
> /home/terje/Videos//DV50p_pal.mov
>
> DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080
> 1600x1200 1360x768 1280x1024 1280x960 1280x720 1024x768
> 800x600 720x576 720x480 640x480"
> v4l2 s_fmt 720x576 YUYV
> DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Inappropriate ioctl
> for device
> [AVFormatContext @ 0x7f6aa81d0080] Requested output format
> 'dv50p_pal.mov' is not known.
> int FFMPEG::init_encoder(const char*):
> failed: /home/terje/Videos//DV50p_pal.mov
>
> DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080
> 1600x1200 1360x768 1280x1024 1280x960 1280x720 1024x768
> 800x600 720x576 720x480 640x480"
> v4l2 s_fmt 720x576 YUYV
> DeviceV4L2Base::v4l2_open VIDIOC_S_STD: Inappropriate ioctl
> for device
> [AVFormatContext @ 0x7f6aa81ad0c0] Requested output format
> 'dv50p_pal.mov' is not known.
> int FFMPEG::init_encoder(const char*):
> failed: /home/terje/Videos//DV50p_pal.mov
> DeviceV4L2Base::v4l2_open pixels="YUYV"; res="1920x1080
> 1600x1200 1360x768 1280x1024 1280x960 1280x720 1024x768
> 800x600 720x576 720x480 640x480"
> v4l2 s_fmt 720x576 YUYV
>
> --------------------
>
> ffmpeg -hide_banner -f v4l2 -i /dev/video0 -f alsa -ch_layout
> stereo -i hw:CARD=UHD,DEV=0 -c:v dvvideo -vf scale=720x576 -r 50
> -c:a copy -t 10 -f mov dv_r50+pcm.mov
>
> Input #0, video4linux2,v4l2, from '/dev/video0':
> Duration: N/A, start: 538.465207, bitrate: 1990656 kb/s
> Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422,
> 1920x1080, 1990656 kb/s, 60 fps, 60 tbr, 1000k tbn
> Input #1, alsa, from 'hw:CARD=UHD,DEV=0':
> Duration: N/A, start: 1749738351.392999, 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) -> dvvideo (native))
> Stream #1:0 -> #0:1 (copy)
> Press [q] to stop, [?] for help
> [dvvideo @ 0x7f2298705c80] Only top-left chroma location is
> supported in DV, input value is: unspecified
> ----
> frame= 476 fps= 50 q=-0.0 size= 135168KiB time=00:00:09.50
> bitrate=116553.7kbits/s dup=0 drop=94 speed= 1x [out#0/mov @
> 0x55b8598e3700] video:140625KiB audio:1875KiB subtitle:0KiB other
> streams:0KiB global headers:0KiB muxing overhead: 0.026882%
>
> frame= 500 fps= 50 q=-0.0 Lsize= 142539KiB time=00:00:10.00
> bitrate=116767.6kbits/s dup=0 drop=98 speed=0.999x
>
> --------
>
> du -sh dv*
> 140M dv_50M+pcm.mov
> 140M dv_r50_50M+pcm.mov
> 140M dv_r50+pcm.mov
>
> -----
>
> ffprobe -hide_banner dv_r50+pcm.mov
>
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'dv_r50+pcm.mov':
> Metadata:
> major_brand : qt
> minor_version : 512
> compatible_brands: qt
> encoder : Lavf61.7.100
> Duration: 00:00:10.00, start: 0.000000, bitrate: 116749 kb/s
> Stream #0:0[0x1]: Video: dvvideo (dv5p / 0x70357664),
> yuv422p(progressive), 720x576 [SAR 16:15 DAR 4:3], 57600 kb/s, 50
> fps, 50 tbr, 12800 tbn (default)
> Metadata:
> handler_name : VideoHandler
> vendor_id : FFMP
> encoder : Lavc61.19.101 dvvideo
> Stream #0:1[0x2]: Audio: pcm_s16le (sowt / 0x74776F73), 48000
> Hz, stereo, s16, 1536 kb/s (default)
> Metadata:
> handler_name : SoundHandler
> vendor_id : [0][0][0][0
>
> --------------
>
> mediainfo dv_r50+pcm.mov
> General
> Complete name : dv_r50+pcm.mov
> Format : MPEG-4
> Format profile : QuickTime
> Codec ID : qt 0000.02 (qt )
> File size : 139 MiB
> Duration : 10 s 2 ms
> Overall bit rate mode : Constant
> Overall bit rate : 117 Mb/s
> Frame rate : 50.000 FPS
> Writing application : Lavf61.7.100
>
> Video
> ID : 1
> Format : DV
> Codec ID : dv5p
> Duration : 10 s 0 ms
> Bit rate mode : Constant
> Bit rate : 24.4 Mb/s
> Width : 720 pixels
> Height : 576 pixels
> Display aspect ratio : 4:3
> Frame rate mode : Constant
> Frame rate : 50.000 FPS
> Original frame rate : 25.000 FPS
> Standard : PAL
> Color space : YUV
> Chroma subsampling : 4:2:2
> Bit depth : 8 bits
> Scan type : Progressive
> Original scan type : Interlaced
> Original scan order : Bottom Field First
> Compression mode : Lossy
> Bits/(Pixel*Frame) : 1.179
> Stream size : 29.1 MiB (21%)
> Writing library : Lavc61.19.101 dvvideo
>
> Audio
> ID : 2
> Format : PCM
> Format settings : Little / Signed
> Codec ID : sowt
> Duration : 10 s 2 ms
> Bit rate mode : Constant
> Bit rate : 1 536 kb/s
> Channel(s) : 2 channels
> Channel layout : L R
> Sampling rate : 48.0 kHz
> Bit depth : 16 bits
> Stream size : 1.83 MiB (1%)
> Default : Yes
> Alternate group : 1
>
> --
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> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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