• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Will AVAudioConverter use the hardware decoder?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Will AVAudioConverter use the hardware decoder?


  • Subject: Re: Will AVAudioConverter use the hardware decoder?
  • From: Tamás Zahola <email@hidden>
  • Date: Wed, 02 Jan 2019 19:24:43 +0100

Wow, thanks Eric, I wasn’t aware of this!

So, this means that in terms of battery consumption, feeding AAC/MP3/etc.
packets to an AVAudioConverter (then an AVAudioPlayerNode) is as efficient as
it gets?

Best regards,
Tamás Zahola

> On 2019. Jan 2., at 19:08, Eric Allamanche <email@hidden> wrote:
>
> Hi Tamás,
>
> the hardware audio decoders are a thing of the past. All remaining facilities
> related to hardware audio codecs are deprecated and don’t have any effect.
> You should stop using them.
>
> Eric
>
>> On Dec 23, 2018, at 2:11 PM, Tamás Zahola <email@hidden> wrote:
>>
>> Hi,
>>
>> I'm writing an iOS app that would be playing AAC/MP3/etc. streams in the
>> background for extended periods of time, so I'd like to minimize its battery
>> impact as much as possible.
>>
>> With the AudioConverter C API I could ask for a hardware codec via
>> AudioConverterNewSpecific + kAppleHardwareAudioCodecManufacturer, but as of
>> lately AVAudioEngine seems to be Apple's choice of audio API, so I would
>> prefer to use that instead of the C API...
>>
>> Is there any information on whether AVAudioConverter would offload audio
>> conversion to the hardware decoder or not?
>>
>> Best regards,
>> Tamás Zahola
>> _______________________________________________
>> Do not post admin requests to the list. They will be ignored.
>> Coreaudio-api mailing list      (email@hidden)
>> Help/Unsubscribe/Update your Subscription:
>>
>> This email sent to email@hidden
>
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: Will AVAudioConverter use the hardware decoder?
      • From: Eric Allamanche <email@hidden>
References: 
 >Re: Will AVAudioConverter use the hardware decoder? (From: Eric Allamanche <email@hidden>)

  • Prev by Date: Re: Will AVAudioConverter use the hardware decoder?
  • Next by Date: Re: Will AVAudioConverter use the hardware decoder?
  • Previous by thread: Re: Will AVAudioConverter use the hardware decoder?
  • Next by thread: Re: Will AVAudioConverter use the hardware decoder?
  • Index(es):
    • Date
    • Thread