Use phone native decoder

[Nojevah]

Description

Hello, as it is not in the rejected features (yet), I'll give it a go.

Auxio seems to use an internal audio decoder, and not the one from the phone, hence my request to offer option to use phone native decoder.

Why would you want to use internal audio decoder ?
Because (at least on my Samsung phones) the internal decoder use hardware BT decoding, and it uses (way) less battery. You can check CPU usage with adb top for example.

Example with Auxio (screen off):

Example with Vanilla Player (open source player which uses phone decoder):

You don't even see ch.blinkenlights.android.vanilla which is the name of Vanilla Player package.

I know a lot of audio players want to use their own decoders, but it often uses battery which is not needed, because in my case I use well-known codecs like mp3 & flac.

Problem solved

The related problem is: consumming battery which could be avoidable

Other implementations

Vanilla Player uses internal decoder.

Benefit

Uses less battery when used with Bluetooth (which I think is used by 95% of people)

Duplicates

• I have checked this feature request for duplicates.
• I have checked that this feature is not implemented in the lastest version.
• I have checked the Why Are These Features Missing? page.
• I agree to the Contribution Guidelines.

[OxygenCobalt]

The issue here is that I can't delegate to things like the system MediaPlayer like vanilla. They're chock full of infuriating device-specific bugs and I'd have to kneecap things like ReplayGain support.

What format do you use? I do route certain formats to a more expensive ffmpeg decoder for improved audio support so I'm curious if that's causing that @Nojevah

[Nojevah]

I use Flac and mp3 mostly. I have some AAC and Vorbis too but something like 0,1%.

As surprising as it is, Vanilla Music has Replaygain support, despite using native decoder !
You could offer an option to use internal decoder and explain it prevents all audio improvment (including Replaygain if you don't want to make it work with an external decoder).

(useless part just for info if interested)
But I would totally understand if you're not interested. I guess it's a nich demand. I discovered by accident the notion of hardware BT decoding some years ago, I was certain only video needed hardware decoding.
In my research, I have tried several video players, no one use audio phone decoder, they all use internal ffmpeg decoder with video hardware decoder. Maybe ffmpeg dev could support Android BT hardware audio decoding, but in general, devs consider audio decoding having little impact on battery consumption compared to video decoding and obviously screen brigthness.

[OxygenCobalt]

I use Flac and mp3 mostly. I have some AAC and Vorbis too but something like 0,1%.

Those would hit my ffmpeg extractors theoretically, so yeah there would maybe be some extra load. The issue is that in the moment those are non-customizable (infra required to update ExoPlayer internals is kinda annoying but possible)

As surprising as it is, Vanilla Music has Replaygain support, despite using native decoder !

w/o any amplification, only negative values are supported. Highly inconsistent.

I'll consider seeing if I can at least configure ExoPlayer to not use ffmpeg and make that configurable @Nojevah