how to use self-defined inputSamples for trasforming pcm to aac with facc

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I'm trying to transform a live stream with g726 and h264 to mp4. I decode g726 to pcm then use faac to encode pcm to aac. Every g726 audio packet I receive is 320 bytes. After decoding, the pcm size is 1280 bytes, so the sample number is 640. But the inputSamples which faacEncOpen gives me is 1024, and my inputFormat is FAAC_INPUT_16BIT. When I pass 640 to faacEncEncode, the sound is not good at all. Does anyone know how to fix this. Thanks in advance!

asked 1 min ago

ncubrian

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