[FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Andrew Randrianasulu]

[-- Attachment #1: Type: text/plain, Size: 650 bytes --]

---------- Forwarded message ---------
От: Andrew Randrianasulu <randrianasulu@gmail.com>
Date: вс, 21 янв. 2024 г., 06:49
Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG <
cin@lists.cinelerra-gg.org>


relative to ffmpeg.git commit 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723

lightly tested with mpv and mediainfo like this:

./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd -f dvd
t.mpg

mpv plays sound correctly, mediainfo does not know those frequencies and
display 0khz. ;)


====

forwarded to ffmpeg-devel as requested.

[-- Attachment #2: 0001-Add-32-44.1-khz-sampling-frequencies-to-pcm-dvd-enco.patch --]
[-- Type: application/x-patch, Size: 1401 bytes --]

[-- Attachment #3: Type: text/plain, Size: 251 bytes --]

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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Marth64]

Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD PCM. Does
this type of output work on an actual DVD player? Thank you

On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
randrianasulu@gmail.com> wrote:

> ---------- Forwarded message ---------
> От: Andrew Randrianasulu <randrianasulu@gmail.com>
> Date: вс, 21 янв. 2024 г., 06:49
> Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
> To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG <
> cin@lists.cinelerra-gg.org>
>
>
> relative to ffmpeg.git commit 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
>
> lightly tested with mpv and mediainfo like this:
>
> ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd -f dvd
> t.mpg
>
> mpv plays sound correctly, mediainfo does not know those frequencies and
> display 0khz. ;)
>
>
> ====
>
> forwarded to ffmpeg-devel as requested.
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Andrew Randrianasulu]

On Mon, Jan 29, 2024 at 8:16 PM Marth64 <marth64@proxyid.net> wrote:
>
> Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD PCM. Does
> this type of output work on an actual DVD player?

We try to determinate this, but unfortunately new DVD  players a bit
TOO flexible and forgiving?

https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007907.html

I even had idea to use PS2 emulator to check (DVD video supposed to
work there  since some  time)
but ran into qt6 being  build  dependency ... so I shelved this idea for now




 Thank you
>
> On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
> randrianasulu@gmail.com> wrote:
>
> > ---------- Forwarded message ---------
> > От: Andrew Randrianasulu <randrianasulu@gmail.com>
> > Date: вс, 21 янв. 2024 г., 06:49
> > Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
> > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG <
> > cin@lists.cinelerra-gg.org>
> >
> >
> > relative to ffmpeg.git commit 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
> >
> > lightly tested with mpv and mediainfo like this:
> >
> > ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd -f dvd
> > t.mpg
> >
> > mpv plays sound correctly, mediainfo does not know those frequencies and
> > display 0khz. ;)
> >
> >
> > ====
> >
> > forwarded to ffmpeg-devel as requested.
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel@ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> >
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Andrew Randrianasulu]

пн, 29 янв. 2024 г., 22:08 Andrew Randrianasulu <randrianasulu@gmail.com>:

> On Mon, Jan 29, 2024 at 8:16 PM Marth64 <marth64@proxyid.net> wrote:
> >
> > Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD PCM.
> Does
> > this type of output work on an actual DVD player?
>


At least this pdf brochure lists 44.1 under PCM:

https://at.yamaha.com/files/download/other_assets/8/333768/DVD-S1500_e_U.pdf


> We try to determinate this, but unfortunately new DVD  players a bit
> TOO flexible and forgiving?
>
> https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007907.html
>
> I even had idea to use PS2 emulator to check (DVD video supposed to
> work there  since some  time)
> but ran into qt6 being  build  dependency ... so I shelved this idea for
> now
>
>
>
>
>  Thank you
> >
> > On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
> > randrianasulu@gmail.com> wrote:
> >
> > > ---------- Forwarded message ---------
> > > От: Andrew Randrianasulu <randrianasulu@gmail.com>
> > > Date: вс, 21 янв. 2024 г., 06:49
> > > Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
> > > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG <
> > > cin@lists.cinelerra-gg.org>
> > >
> > >
> > > relative to ffmpeg.git commit 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
> > >
> > > lightly tested with mpv and mediainfo like this:
> > >
> > > ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd -f
> dvd
> > > t.mpg
> > >
> > > mpv plays sound correctly, mediainfo does not know those frequencies
> and
> > > display 0khz. ;)
> > >
> > >
> > > ====
> > >
> > > forwarded to ffmpeg-devel as requested.
> > > _______________________________________________
> > > ffmpeg-devel mailing list
> > > ffmpeg-devel@ffmpeg.org
> > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> > >
> > > To unsubscribe, visit link above, or email
> > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> > >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel@ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Marth64]

 Interesting, thanks. My thought was to see if this is allowed for
DVD-Video vs DVD-Audio only which are different application layer. I can
try to run a PS2 test with the real hardware out of curiosity later.

On Tue, Jan 30, 2024 at 2:17 PM Andrew Randrianasulu <
randrianasulu@gmail.com> wrote:

> пн, 29 янв. 2024 г., 22:08 Andrew Randrianasulu <randrianasulu@gmail.com>:
>
> > On Mon, Jan 29, 2024 at 8:16 PM Marth64 <marth64@proxyid.net> wrote:
> > >
> > > Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD PCM.
> > Does
> > > this type of output work on an actual DVD player?
> >
>
>
> At least this pdf brochure lists 44.1 under PCM:
>
>
> https://at.yamaha.com/files/download/other_assets/8/333768/DVD-S1500_e_U.pdf
>
>
> > We try to determinate this, but unfortunately new DVD  players a bit
> > TOO flexible and forgiving?
> >
> > https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007907.html
> >
> > I even had idea to use PS2 emulator to check (DVD video supposed to
> > work there  since some  time)
> > but ran into qt6 being  build  dependency ... so I shelved this idea for
> > now
> >
> >
> >
> >
> >  Thank you
> > >
> > > On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
> > > randrianasulu@gmail.com> wrote:
> > >
> > > > ---------- Forwarded message ---------
> > > > От: Andrew Randrianasulu <randrianasulu@gmail.com>
> > > > Date: вс, 21 янв. 2024 г., 06:49
> > > > Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
> > > > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG <
> > > > cin@lists.cinelerra-gg.org>
> > > >
> > > >
> > > > relative to ffmpeg.git commit
> 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
> > > >
> > > > lightly tested with mpv and mediainfo like this:
> > > >
> > > > ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd -f
> > dvd
> > > > t.mpg
> > > >
> > > > mpv plays sound correctly, mediainfo does not know those frequencies
> > and
> > > > display 0khz. ;)
> > > >
> > > >
> > > > ====
> > > >
> > > > forwarded to ffmpeg-devel as requested.
> > > > _______________________________________________
> > > > ffmpeg-devel mailing list
> > > > ffmpeg-devel@ffmpeg.org
> > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> > > >
> > > > To unsubscribe, visit link above, or email
> > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> > > >
> > > _______________________________________________
> > > ffmpeg-devel mailing list
> > > ffmpeg-devel@ffmpeg.org
> > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> > >
> > > To unsubscribe, visit link above, or email
> > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> >
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Andrew Randrianasulu]

вт, 30 янв. 2024 г., 23:21 Marth64 <marth64@proxyid.net>:

>  Interesting, thanks. My thought was to see if this is allowed for
> DVD-Video vs DVD-Audio only which are different application layer. I can
> try to run a PS2 test with the real hardware out of curiosity later.
>

Thanks!


I also found Cirrus Logic application note from 2001 that mentions 32khz
pcm operation. Yet it looks more like external amplifier/decoder part, not
something integrated into dvd player itself? (input stream via S/PDIF)

https://pdf.dzsc.com/88889/28162.pdf



> On Tue, Jan 30, 2024 at 2:17 PM Andrew Randrianasulu <
> randrianasulu@gmail.com> wrote:
>
> > пн, 29 янв. 2024 г., 22:08 Andrew Randrianasulu <randrianasulu@gmail.com
> >:
> >
> > > On Mon, Jan 29, 2024 at 8:16 PM Marth64 <marth64@proxyid.net> wrote:
> > > >
> > > > Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD
> PCM.
> > > Does
> > > > this type of output work on an actual DVD player?
> > >
> >
> >
> > At least this pdf brochure lists 44.1 under PCM:
> >
> >
> >
> https://at.yamaha.com/files/download/other_assets/8/333768/DVD-S1500_e_U.pdf
> >
> >
> > > We try to determinate this, but unfortunately new DVD  players a bit
> > > TOO flexible and forgiving?
> > >
> > > https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007907.html
> > >
> > > I even had idea to use PS2 emulator to check (DVD video supposed to
> > > work there  since some  time)
> > > but ran into qt6 being  build  dependency ... so I shelved this idea
> for
> > > now
> > >
> > >
> > >
> > >
> > >  Thank you
> > > >
> > > > On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
> > > > randrianasulu@gmail.com> wrote:
> > > >
> > > > > ---------- Forwarded message ---------
> > > > > От: Andrew Randrianasulu <randrianasulu@gmail.com>
> > > > > Date: вс, 21 янв. 2024 г., 06:49
> > > > > Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
> > > > > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG <
> > > > > cin@lists.cinelerra-gg.org>
> > > > >
> > > > >
> > > > > relative to ffmpeg.git commit
> > 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
> > > > >
> > > > > lightly tested with mpv and mediainfo like this:
> > > > >
> > > > > ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd
> -f
> > > dvd
> > > > > t.mpg
> > > > >
> > > > > mpv plays sound correctly, mediainfo does not know those
> frequencies
> > > and
> > > > > display 0khz. ;)
> > > > >
> > > > >
> > > > > ====
> > > > >
> > > > > forwarded to ffmpeg-devel as requested.
> > > > > _______________________________________________
> > > > > ffmpeg-devel mailing list
> > > > > ffmpeg-devel@ffmpeg.org
> > > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> > > > >
> > > > > To unsubscribe, visit link above, or email
> > > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> > > > >
> > > > _______________________________________________
> > > > ffmpeg-devel mailing list
> > > > ffmpeg-devel@ffmpeg.org
> > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> > > >
> > > > To unsubscribe, visit link above, or email
> > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> > >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel@ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> >
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Andrew Randrianasulu]

ср, 31 янв. 2024 г., 04:49 Andrew Randrianasulu <randrianasulu@gmail.com>:

>
>
> вт, 30 янв. 2024 г., 23:21 Marth64 <marth64@proxyid.net>:
>
>>  Interesting, thanks. My thought was to see if this is allowed for
>> DVD-Video vs DVD-Audio only which are different application layer. I can
>> try to run a PS2 test with the real hardware out of curiosity later.
>>
>
> Thanks!
>
>
> I also found Cirrus Logic application note from 2001 that mentions 32khz
> pcm operation. Yet it looks more like external amplifier/decoder part, not
> something integrated into dvd player itself? (input stream via S/PDIF)
>
> https://pdf.dzsc.com/88889/28162.pdf
>


https://tascam.com/downloads/tascam/78/DV-D01U_Manual.pdf

also this pdf lists dvd pcm 44.1 in table at p. 30.

No sights of 32khz, but surprizingly hdmi can carry such low frequency
sampled sounds!

>
>
>
>
>> On Tue, Jan 30, 2024 at 2:17 PM Andrew Randrianasulu <
>> randrianasulu@gmail.com> wrote:
>>
>> > пн, 29 янв. 2024 г., 22:08 Andrew Randrianasulu <
>> randrianasulu@gmail.com>:
>> >
>> > > On Mon, Jan 29, 2024 at 8:16 PM Marth64 <marth64@proxyid.net> wrote:
>> > > >
>> > > > Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD
>> PCM.
>> > > Does
>> > > > this type of output work on an actual DVD player?
>> > >
>> >
>> >
>> > At least this pdf brochure lists 44.1 under PCM:
>> >
>> >
>> >
>> https://at.yamaha.com/files/download/other_assets/8/333768/DVD-S1500_e_U.pdf
>> >
>> >
>> > > We try to determinate this, but unfortunately new DVD  players a bit
>> > > TOO flexible and forgiving?
>> > >
>> > > https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007907.html
>> > >
>> > > I even had idea to use PS2 emulator to check (DVD video supposed to
>> > > work there  since some  time)
>> > > but ran into qt6 being  build  dependency ... so I shelved this idea
>> for
>> > > now
>> > >
>> > >
>> > >
>> > >
>> > >  Thank you
>> > > >
>> > > > On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
>> > > > randrianasulu@gmail.com> wrote:
>> > > >
>> > > > > ---------- Forwarded message ---------
>> > > > > От: Andrew Randrianasulu <randrianasulu@gmail.com>
>> > > > > Date: вс, 21 янв. 2024 г., 06:49
>> > > > > Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
>> > > > > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>, Cinelerra.GG
>> <
>> > > > > cin@lists.cinelerra-gg.org>
>> > > > >
>> > > > >
>> > > > > relative to ffmpeg.git commit
>> > 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
>> > > > >
>> > > > > lightly tested with mpv and mediainfo like this:
>> > > > >
>> > > > > ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a pcm_dvd
>> -f
>> > > dvd
>> > > > > t.mpg
>> > > > >
>> > > > > mpv plays sound correctly, mediainfo does not know those
>> frequencies
>> > > and
>> > > > > display 0khz. ;)
>> > > > >
>> > > > >
>> > > > > ====
>> > > > >
>> > > > > forwarded to ffmpeg-devel as requested.
>> > > > > _______________________________________________
>> > > > > ffmpeg-devel mailing list
>> > > > > ffmpeg-devel@ffmpeg.org
>> > > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> > > > >
>> > > > > To unsubscribe, visit link above, or email
>> > > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>> > > > >
>> > > > _______________________________________________
>> > > > ffmpeg-devel mailing list
>> > > > ffmpeg-devel@ffmpeg.org
>> > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> > > >
>> > > > To unsubscribe, visit link above, or email
>> > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>> > >
>> > _______________________________________________
>> > ffmpeg-devel mailing list
>> > ffmpeg-devel@ffmpeg.org
>> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> >
>> > To unsubscribe, visit link above, or email
>> > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>> >
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>
>> To unsubscribe, visit link above, or email
>> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>>
>
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Re: [FFmpeg-devel] Fwd: patch for 44.1/32 khz pcm input in pcm dvd encoder

[Marth64]

Hi Andrew,

Sorry, it took me some time to author DVDs to test this but I finally got
around to it.
DVD player # 1 (DVD only) -- pass for both 32k and 44.1k
DVD player # 2 (4K/BD/DVD) -- pass for both 32k and 44.1k

Interestingly, DVD player # 2 OSD showed sample rate as 48k but anyways it
played fine.
So, I agree this is supported most likely transparently by the decoder
chipset itself.

WRT the patch itself.  I noticed there is an indentation issue in the
switch statement, and it did not apply automatically on latest master. I
had to modify it to apply.
I do not have permission to merge patches but I imagine this will be more
likely to get merged with those 2 things fixed.

out of curiosity, how did you get the constant values ? (44.1 = 2, 32 = 3).
I would like to implement this as well in to the DVD demuxer, since
apparently it is possible to do.

Thanks for sharing.
Respectfully,



On Tue, Jan 30, 2024 at 11:41 PM Andrew Randrianasulu <
randrianasulu@gmail.com> wrote:

> ср, 31 янв. 2024 г., 04:49 Andrew Randrianasulu <randrianasulu@gmail.com>:
>
> >
> >
> > вт, 30 янв. 2024 г., 23:21 Marth64 <marth64@proxyid.net>:
> >
> >>  Interesting, thanks. My thought was to see if this is allowed for
> >> DVD-Video vs DVD-Audio only which are different application layer. I can
> >> try to run a PS2 test with the real hardware out of curiosity later.
> >>
> >
> > Thanks!
> >
> >
> > I also found Cirrus Logic application note from 2001 that mentions 32khz
> > pcm operation. Yet it looks more like external amplifier/decoder part,
> not
> > something integrated into dvd player itself? (input stream via S/PDIF)
> >
> > https://pdf.dzsc.com/88889/28162.pdf
> >
>
>
> https://tascam.com/downloads/tascam/78/DV-D01U_Manual.pdf
>
> also this pdf lists dvd pcm 44.1 in table at p. 30.
>
> No sights of 32khz, but surprizingly hdmi can carry such low frequency
> sampled sounds!
>
> >
> >
> >
> >
> >> On Tue, Jan 30, 2024 at 2:17 PM Andrew Randrianasulu <
> >> randrianasulu@gmail.com> wrote:
> >>
> >> > пн, 29 янв. 2024 г., 22:08 Andrew Randrianasulu <
> >> randrianasulu@gmail.com>:
> >> >
> >> > > On Mon, Jan 29, 2024 at 8:16 PM Marth64 <marth64@proxyid.net>
> wrote:
> >> > > >
> >> > > > Hi,  out of curiosity, I did not know 44.1/32 is supported on DVD
> >> PCM.
> >> > > Does
> >> > > > this type of output work on an actual DVD player?
> >> > >
> >> >
> >> >
> >> > At least this pdf brochure lists 44.1 under PCM:
> >> >
> >> >
> >> >
> >>
> https://at.yamaha.com/files/download/other_assets/8/333768/DVD-S1500_e_U.pdf
> >> >
> >> >
> >> > > We try to determinate this, but unfortunately new DVD  players a bit
> >> > > TOO flexible and forgiving?
> >> > >
> >> > >
> https://lists.cinelerra-gg.org/pipermail/cin/2024-January/007907.html
> >> > >
> >> > > I even had idea to use PS2 emulator to check (DVD video supposed to
> >> > > work there  since some  time)
> >> > > but ran into qt6 being  build  dependency ... so I shelved this idea
> >> for
> >> > > now
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >  Thank you
> >> > > >
> >> > > > On Mon, Jan 22, 2024 at 3:59 AM Andrew Randrianasulu <
> >> > > > randrianasulu@gmail.com> wrote:
> >> > > >
> >> > > > > ---------- Forwarded message ---------
> >> > > > > От: Andrew Randrianasulu <randrianasulu@gmail.com>
> >> > > > > Date: вс, 21 янв. 2024 г., 06:49
> >> > > > > Subject: patch for 44.1/32 khz pcm input in pcm dvd encoder
> >> > > > > To: FFmpeg user questions <ffmpeg-user@ffmpeg.org>,
> Cinelerra.GG
> >> <
> >> > > > > cin@lists.cinelerra-gg.org>
> >> > > > >
> >> > > > >
> >> > > > > relative to ffmpeg.git commit
> >> > 6c4388b468bf92c0c1e7733c6cfe4ff3f9ca9723
> >> > > > >
> >> > > > > lightly tested with mpv and mediainfo like this:
> >> > > > >
> >> > > > > ./ffmpeg -i ~/f9518976.mp4 -target pal-dvd -ar 44100 -c:a
> pcm_dvd
> >> -f
> >> > > dvd
> >> > > > > t.mpg
> >> > > > >
> >> > > > > mpv plays sound correctly, mediainfo does not know those
> >> frequencies
> >> > > and
> >> > > > > display 0khz. ;)
> >> > > > >
> >> > > > >
> >> > > > > ====
> >> > > > >
> >> > > > > forwarded to ffmpeg-devel as requested.
> >> > > > > _______________________________________________
> >> > > > > ffmpeg-devel mailing list
> >> > > > > ffmpeg-devel@ffmpeg.org
> >> > > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >> > > > >
> >> > > > > To unsubscribe, visit link above, or email
> >> > > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> >> > > > >
> >> > > > _______________________________________________
> >> > > > ffmpeg-devel mailing list
> >> > > > ffmpeg-devel@ffmpeg.org
> >> > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >> > > >
> >> > > > To unsubscribe, visit link above, or email
> >> > > > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> >> > >
> >> > _______________________________________________
> >> > ffmpeg-devel mailing list
> >> > ffmpeg-devel@ffmpeg.org
> >> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >> >
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> >> >
> >> _______________________________________________
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