[Cin] ffmpeg raw dv profiles patch

[Terje J. Hanssen]

Den 05.01.2024 03:38, skrev Andrew Randrianasulu via Cin:
> Just for testing my aspect ratio patch series ...
>
> It makes funny dv out of HDV with two channel of audio:
>
> mediainfo /dev/shm/dv.dv
> General
> Complete name                            : /dev/shm/dv.dv
> Format                                   : DV
> Commercial name                          : DVCPRO HD
> File size                                : 322 MiB
> Frame rate                               : 25.000 FPS
> Recorded date                            : 1970-01-01 00:00:00.000
>
> Video
> Format                                   : DV
> Commercial name                          : DVCPRO HD
> Width                                    : 1 440 pixels
> Height                                   : 1 080 pixels
> Display aspect ratio                     : 16:9
> Frame rate mode                          : Constant
> Frame rate                               : 25.000 FPS
> Standard                                 : PAL
> Color space                              : YUV
> Scan type                                : Interlaced
> Scan order                               : Bottom Field First
> Compression mode                         : Lossy
> Time code of first frame                 : 00:00:00:00
> Time code source                         : Subcode time code
>
> Audio #1
> ID                                       : 0
> Format                                   : PCM
> Format settings                          : Big / Signed
> Bit rate mode                            : Constant
> Bit rate                                 : 768 kb/s
> Channel(s)                               : 1 channel
> Sampling rate                            : 48.0 kHz
> Bit depth                                : 16 bits
>
> Audio #2
> ID                                       : 1
> Format                                   : PCM
> Format settings                          : Big / Signed
> Bit rate mode                            : Constant
> Bit rate                                 : 768 kb/s
> Channel(s)                               : 1 channel
> Sampling rate                            : 48.0 kHz
> Bit depth                                : 16 bits
>
> Audio #3
> ID                                       : 2
> Format                                   : PCM
> Format settings                          : Big / Signed
> Bit rate mode                            : Constant
> Bit rate                                 : 768 kb/s
> Channel(s)                               : 1 channel
> Sampling rate                            : 48.0 kHz
> Bit depth                                : 16 bits
>
> Audio #4
> ID                                       : 3
> Format                                   : PCM
> Format settings                          : Big / Signed
> Bit rate mode                            : Constant
> Bit rate                                 : 768 kb/s
> Channel(s)                               : 1 channel
> Sampling rate                            : 48.0 kHz
> Bit depth                                : 16 bits
>
>
> ffprobe says:
>
> ffprobe /dev/shm/dv.dv
> ffprobe version 4.4.4 Copyright (c) 2007-2023 the FFmpeg developers
>    built with gcc 11.2.0 (GCC)
>    configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib
> --docdir=/usr/doc/ffmpeg-4.4.4/html --mandir=/usr/man --disable-debug
> --enable-shared --disable-static --enable-gpl --enable-version3
> --enable-avresample --arch=i586 --enable-libfontconfig
> --enable-libfreetype --enable-libfribidi --enable-gnutls
> --enable-libass --enable-libbluray --enable-libcdio --enable-frei0r
> --enable-libgsm --enable-openal --enable-libopus --enable-librtmp
> --enable-libspeex --enable-libssh --enable-libtheora
> --enable-libtwolame --enable-libv4l2 --enable-libvidstab
> --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264
> --enable-libx265 --enable-libxvid --enable-libzmq --enable-libmp3lame
> --enable-opencl --enable-opengl --enable-libopenjpeg
> --disable-libpulse --enable-libsmbclient --enable-libsvtav1
> --enable-libxml2 --enable-librsvg --enable-libdrm --enable-libaom
> --enable-libdav1d --enable-libsoxr --enable-libzimg
> --enable-vapoursynth
>    libavutil      56. 70.100 / 56. 70.100
>    libavcodec     58.134.100 / 58.134.100
>    libavformat    58. 76.100 / 58. 76.100
>    libavdevice    58. 13.100 / 58. 13.100
>    libavfilter     7.110.100 /  7.110.100
>    libavresample   4.  0.  0 /  4.  0.  0
>    libswscale      5.  9.100 /  5.  9.100
>    libswresample   3.  9.100 /  3.  9.100
>    libpostproc    55.  9.100 / 55.  9.100
> [dv @ 0x886bfc0] Estimating duration from bitrate, this may be inaccurate
> Input #0, dv, from '/dev/shm/dv.dv':
>    Metadata:
>      timecode        : 00:00:00:00
>    Duration: 00:00:23.48, start: 0.000000, bitrate: 115200 kb/s
>    Stream #0:0: Video: dvvideo, yuv422p, 1440x1080 [SAR 4:3 DAR 16:9],
> 25000 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
>    Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>    Stream #0:2: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>    Stream #0:3: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>    Stream #0:4: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
>
> so, 8 streams ( four stereo pairs), only first 2 of them are real :)

The format seems to be DVCPro HD (Panasonic), not HDV?
https://en.wikipedia.org/wiki/DV_(video_format)#DVCPRO_HD

But recorded date 1970  was early?