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?
yeah, I just mean I used HDV as source.