[FFmpeg-user] Upmixing Dolby Pro Logic audio - still not possible?

[Paul B Mahol]

On 4/6/20, Ian Pilcher <arequipeno at gmail.com> wrote:
> On 4/6/20 10:33 AM, Carl Eugen Hoyos wrote:
>> Am Mo., 6. Apr. 2020 um 17:01 Uhr schrieb Ian Pilcher
>> <arequipeno at gmail.com>:
>>
>>> Is it possible to do $SUBJECT (with ffmpeg or any other software)?
>>
>> https://ffmpeg.org/ffmpeg-filters.html#surround
>
> I see no mention of Dolby Pro Logic on that page, and according to this
> comment[1] that filter uses its own (necessarily heuristic) algorithm;
> it does not use the Pro Logic channel information embedded in the
> source.
>
> I'm interested in doing this in a "lossless" fashion, where the
> resulting multi-channel audio is identical to that produced by a
> Dolby Pro Logic-enabled AVR.

Good luck with that. Certainly nobody will give such item for free.

>
> [1]
> https://patchwork.ffmpeg.org/project/ffmpeg/patch/20170525144546.15459-1-onemda@gmail.com/#12111
>
> --
> ========================================================================
>                   In Soviet Russia, Google searches you!
> ========================================================================
>
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".