[Cin] DV50 - the forgotten optimal codec for digitizing analog Hi8/S-video ?
Terje J. Hanssen
terjejhanssen at gmail.com
Fri Jun 13 23:47:59 CEST 2025
Den 13.06.2025 05:37, skrev Andrew Randrianasulu:
>
>
> чт, 12 июн. 2025 г., 23:33 Terje J. Hanssen <terjejhanssen at gmail.com>:
>
>
>
> 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
>
>
> *I think* -target just set bunch of parameters at once. So not really
> needed if you set them individually in preset.
>
>
>
> 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
> <http://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]
>
> --------
>
A dv vs dv50 squiz:
DV: yuv420(pal) - ca, 25Mbit/s (video) - 25 FPS
DV50; yuv422 - ca 50Mbit/s (video) - 25 FPS
I have also read that DV50 may be interpreted as 2 DV streams in parallell.
But what happened by selecting framerate 50 fps in CinGG, when
ffprobe above say 57600 kb/s, 50 fps
and mediainfo below say
Overall bit rate : 117 Mb/s
Bit rate (video) : 24.4 Mb/s
Frame rate : 50.000 FPS
Original frame rate : 25.000 FPS
Scan type : Interlaced !!?
Scan type, store method : Separated fields (2
fields per block)
Is the latter Separated fields 2 interlaced fields each odd and even
lines that simulates a progressive 50 FPS video?
>
> 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
>>
>> --
>> Cin mailing list
>> Cin at lists.cinelerra-gg.org
>> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>>
>
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