CODEWITHSUNDEEP
androidaudioandroid-ndk
matteoh
matteoh

Reputation: 3590

Oboe audio stream format: will the int16_t format disappear?

In my Android app, I'm using the Oboe library to redirect audio samples to the audio output.

According to my tests, in the oboe::AudioStreamCallback::onAudioReady() function, it seems that most of the time, the float format is used for the audio stream format. But sometimes, the int16_t format is used.

Since the float format is much more convenient to use than the int16_t format, I have some questions about it:

Thanks for your help.

Upvotes: 1

Views: 368

Answers (1)

philburk
philburk

Reputation: 711

If you do not specify a format in the AudioStreamBuilder then you could get either float or int16_t. Oboe and AAudio will choose a format that is optimal for that platform. Generally float is preferred. But, for example, on some platforms you can only get a LOW_LATENCY input stream if you use int16_t. So it will choose int16_t.

You can determine the format by calling AudioStream::getFormat().

If you do specify a format then you will get that format when you open the stream, if it is supported. OpenSL ES before L (21) does not support float so Oboe on a pre-L device will not open a stream with float format.

The int16_t format will not disappear. We will continue to support it.

Upvotes: 3

Related Questions