How to encode resampled PCM-audio to AAC using ffmpeg-API when input pcm samples count not equal 1024

Question

I am working on capturing and streaming audio to RTMP server at a moment. I work under MacOS (in Xcode), so for capturing audio sample-buffer I use AVFoundation-framework.

Answer 1

If anyone ended up here, I had the same issue, and just as @Mohit pointed out for AAC each audio frame has to be broken down into 1024 bytes chunks.

example:

uint8_t *buffer = (uint8_t*) malloc(1024);
AVFrame *frame = av_frame_alloc();
while((fread(buffer, 1024, 1, fp)) == 1) {
    frame->data[0] = buffer;
}