Den 13.06.2025 05:37, skrev Andrew Randrianasulu:


чт, 12 июн. 2025 г., 23:33 Terje J. Hanssen <terjejhanssen@gmail.com>:


Den 12.06.2025 19:01, skrev Andrew Randrianasulu:


чт, 12 июн. 2025 г., 19:45 Terje J. Hanssen via Cin <cin@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

-------
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

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