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<div class="moz-cite-prefix">Den 05.01.2024 09:47, skrev Andrew
Randrianasulu:<br>
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cite="mid:CA+rFky5gncrqvfHf5kwC_Q6oq49sZMEG20ZOpDd=afqXFbE=bg@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">пт, 5 янв. 2024 г., 11:38
Terje J. Hanssen via Cin <<a
href="mailto:cin@lists.cinelerra-gg.org"
moz-do-not-send="true" class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
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Den 05.01.2024 03:38, skrev Andrew Randrianasulu via Cin:<br>
> Just for testing my aspect ratio patch series ...<br>
><br>
> It makes funny dv out of HDV with two channel of
audio:<br>
><br>
> mediainfo /dev/shm/dv.dv<br>
> General<br>
> Complete name :
/dev/shm/dv.dv<br>
> Format : DV<br>
> Commercial name : DVCPRO HD<br>
> File size : 322 MiB<br>
> Frame rate : 25.000 FPS<br>
> Recorded date : 1970-01-01
00:00:00.000<br>
><br>
> Video<br>
> Format : DV<br>
> Commercial name : DVCPRO HD<br>
> Width : 1 440
pixels<br>
> Height : 1 080
pixels<br>
> Display aspect ratio : 16:9<br>
> Frame rate mode : Constant<br>
> Frame rate : 25.000 FPS<br>
> Standard : PAL<br>
> Color space : YUV<br>
> Scan type : Interlaced<br>
> Scan order : Bottom
Field First<br>
> Compression mode : Lossy<br>
> Time code of first frame :
00:00:00:00<br>
> Time code source : Subcode
time code<br>
><br>
> Audio #1<br>
> ID : 0<br>
> Format : PCM<br>
> Format settings : Big /
Signed<br>
> Bit rate mode : Constant<br>
> Bit rate : 768 kb/s<br>
> Channel(s) : 1 channel<br>
> Sampling rate : 48.0 kHz<br>
> Bit depth : 16 bits<br>
><br>
> Audio #2<br>
> ID : 1<br>
> Format : PCM<br>
> Format settings : Big /
Signed<br>
> Bit rate mode : Constant<br>
> Bit rate : 768 kb/s<br>
> Channel(s) : 1 channel<br>
> Sampling rate : 48.0 kHz<br>
> Bit depth : 16 bits<br>
><br>
> Audio #3<br>
> ID : 2<br>
> Format : PCM<br>
> Format settings : Big /
Signed<br>
> Bit rate mode : Constant<br>
> Bit rate : 768 kb/s<br>
> Channel(s) : 1 channel<br>
> Sampling rate : 48.0 kHz<br>
> Bit depth : 16 bits<br>
><br>
> Audio #4<br>
> ID : 3<br>
> Format : PCM<br>
> Format settings : Big /
Signed<br>
> Bit rate mode : Constant<br>
> Bit rate : 768 kb/s<br>
> Channel(s) : 1 channel<br>
> Sampling rate : 48.0 kHz<br>
> Bit depth : 16 bits<br>
><br>
><br>
> ffprobe says:<br>
><br>
> ffprobe /dev/shm/dv.dv<br>
> ffprobe version 4.4.4 Copyright (c) 2007-2023 the
FFmpeg developers<br>
> built with gcc 11.2.0 (GCC)<br>
> configuration: --prefix=/usr --libdir=/usr/lib
--shlibdir=/usr/lib<br>
> --docdir=/usr/doc/ffmpeg-4.4.4/html --mandir=/usr/man
--disable-debug<br>
> --enable-shared --disable-static --enable-gpl
--enable-version3<br>
> --enable-avresample --arch=i586
--enable-libfontconfig<br>
> --enable-libfreetype --enable-libfribidi
--enable-gnutls<br>
> --enable-libass --enable-libbluray --enable-libcdio
--enable-frei0r<br>
> --enable-libgsm --enable-openal --enable-libopus
--enable-librtmp<br>
> --enable-libspeex --enable-libssh --enable-libtheora<br>
> --enable-libtwolame --enable-libv4l2
--enable-libvidstab<br>
> --enable-libvorbis --enable-libvpx --enable-libwebp
--enable-libx264<br>
> --enable-libx265 --enable-libxvid --enable-libzmq
--enable-libmp3lame<br>
> --enable-opencl --enable-opengl --enable-libopenjpeg<br>
> --disable-libpulse --enable-libsmbclient
--enable-libsvtav1<br>
> --enable-libxml2 --enable-librsvg --enable-libdrm
--enable-libaom<br>
> --enable-libdav1d --enable-libsoxr --enable-libzimg<br>
> --enable-vapoursynth<br>
> libavutil 56. 70.100 / 56. 70.100<br>
> libavcodec 58.134.100 / 58.134.100<br>
> libavformat 58. 76.100 / 58. 76.100<br>
> libavdevice 58. 13.100 / 58. 13.100<br>
> libavfilter 7.110.100 / 7.110.100<br>
> libavresample 4. 0. 0 / 4. 0. 0<br>
> libswscale 5. 9.100 / 5. 9.100<br>
> libswresample 3. 9.100 / 3. 9.100<br>
> libpostproc 55. 9.100 / 55. 9.100<br>
> [dv @ 0x886bfc0] Estimating duration from bitrate,
this may be inaccurate<br>
> Input #0, dv, from '/dev/shm/dv.dv':<br>
> Metadata:<br>
> timecode : 00:00:00:00<br>
> Duration: 00:00:23.48, start: 0.000000, bitrate:
115200 kb/s<br>
> Stream #0:0: Video: dvvideo, yuv422p, 1440x1080
[SAR 4:3 DAR 16:9],<br>
> 25000 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc<br>
> Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo,
s16, 1536 kb/s<br>
> Stream #0:2: Audio: pcm_s16le, 48000 Hz, stereo,
s16, 1536 kb/s<br>
> Stream #0:3: Audio: pcm_s16le, 48000 Hz, stereo,
s16, 1536 kb/s<br>
> Stream #0:4: Audio: pcm_s16le, 48000 Hz, stereo,
s16, 1536 kb/s<br>
><br>
> so, 8 streams ( four stereo pairs), only first 2 of
them are real :)<br>
<br>
The format seems to be DVCPro HD (Panasonic), not HDV?<br>
<a
href="https://en.wikipedia.org/wiki/DV_(video_format)#DVCPRO_HD"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">https://en.wikipedia.org/wiki/DV_(video_format)#DVCPRO_HD</a><br>
<br>
But recorded date 1970 was early?<br>
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<div dir="auto"><br>
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<div dir="auto"><br>
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<div dir="auto">yeah, I just mean I used HDV as source.</div>
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<br>
Yet, could it be that the source actually was DVCPro HD?<br>
<br>
I mean, where came for example mediainfo' s Commercial name "DVCPRO
HD" from, and ffprobe's "yuv422p" and PCM audio tracks?<br>
<br>
<br>
<br>
<br>
<blockquote type="cite"
cite="mid:CA+rFky5gncrqvfHf5kwC_Q6oq49sZMEG20ZOpDd=afqXFbE=bg@mail.gmail.com">
<div dir="auto">
<div dir="auto"><br>
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<div dir="auto">Date 1970 is surely too early, but such is
default! Probably makes it easier to see if file was from
camera or re-encoded.</div>
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