opus_uint16

[vinnitu]

Hi.

I have next flow on my app

encoded opus data -> decode with opus_decode() -> resample 44100 -> send to bluetooth in sbc codec

I want to use libresample but in your code in/out data it *float, but opus_decode give me opus_uint16(uint16_t) and sbc as I known wants uint16 too.

What do you recommend me to do?

[erdgeist]

I've had similar requirements and wrote an implementation in c++

https://github.com/erdgeist/libresample/blob/master/cpp/resampler.h

if C++ is fine with you, just use it. If not, the main thing to do is to change the API for resample_process to consume short * instead of float * and then change all references to members of the inBuffer and outBuffer arrays adding a cast to float

For example:

https://github.com/erdgeist/libresample/blob/6714bfb530ae4d979227f19b62859a198be4acbf/src/resample.c#L247

hp->X[hp->Xread + i] = (float)inBuffer[(*inBufferUsed) + i];

and

https://github.com/erdgeist/libresample/blob/6714bfb530ae4d979227f19b62859a198be4acbf/src/resample.c#L214

outBuffer[outSampleCount+i] = (short)hp->Y[i];

and here, too:

https://github.com/erdgeist/libresample/blob/6714bfb530ae4d979227f19b62859a198be4acbf/src/resample.c#L322

and you should be fine.

[Zipdox2]

Use opus_decode_float.