- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection
{
if (_videoConnection == connection) {
NSLog(@"采集到视频数据");
} else {
NSLog(@"采集到音频数据");
}
}
sampleBuffer ——>(视频)yuv420——>h264编码
sampleBuffer——>(音频)pcm——>aac编码
数据合成：flv格式 = h264 + aac
