Buffer about opus

[AxioDev]

Up, thanks for your answer, but can you provide a code example to solve the problem ?

[mikkeldamsgaard]

You need to make sure that the length of the argument to encoder.encode() is a multiple of 2.5ms. Since you are encoding with 16000 and two channels (!) that would be multiple of 1622.5 = 80 frames that is 160 bytes. A good normal window size is 20ms, so that would make you have the data buffer at 8*160 bytes exactly.

That said, then the implementation does not check for the return value of int compressedLength = opus_encode(this->encoder, pcm, frameSize, &(this->outOpus[0]), MAX_PACKET_SIZE);. If the data buffer is not exactly aligned it returns -1 which in unsigned form is 0x100000000 and that generates the error as the code tries to allocate a buffer right after this call with the compressedLength.

[LuvbCa]

im currently not working on that project anymore but i will need it in the near future, so im thankful for your answer! i will close this issue when i get to try this!

[iocmet]

You need to make sure that the length of the argument to encoder.encode() is a multiple of 2.5ms. Since you are encoding with 16000 and two channels (!) that would be multiple of 16_2_2.5 = 80 frames that is 160 bytes. A good normal window size is 20ms, so that would make you have the data buffer at 8*160 bytes exactly.

That said, then the implementation does not check for the return value of int compressedLength = opus_encode(this->encoder, pcm, frameSize, &(this->outOpus[0]), MAX_PACKET_SIZE);. If the data buffer is not exactly aligned it returns -1 which in unsigned form is 0x100000000 and that generates the error as the code tries to allocate a buffer right after this call with the compressedLength.

and how i can fix it?