move to new cspot

components/spotify/cspot/bell/main/audio-codec/AACDecoder.cpp

@@ -0,0 +1,50 @@
+#include "AACDecoder.h"
+#include <iostream>
+
+using namespace bell;
+
+AACDecoder::AACDecoder() {
+  aac = AACInitDecoder();
+  pcmData = (int16_t*)malloc(AAC_MAX_NSAMPS * AAC_MAX_NCHANS * sizeof(int16_t));
+}
+
+AACDecoder::~AACDecoder() {
+  AACFreeDecoder(aac);
+  free(pcmData);
+}
+
+bool AACDecoder::setup(uint32_t sampleRate, uint8_t channelCount,
+                       uint8_t bitDepth) {
+  return true;
+}
+
+bool AACDecoder::setup(AudioContainer* container) {
+  return true;
+}
+
+uint8_t* AACDecoder::decode(uint8_t* inData, uint32_t& inLen,
+                            uint32_t& outLen) {
+  if (!inData)
+    return nullptr;
+
+  int status = AACDecode(aac, static_cast<unsigned char**>(&inData),
+                         reinterpret_cast<int*>(&inLen),
+                         static_cast<short*>(this->pcmData));
+
+  AACGetLastFrameInfo(aac, &frame);
+  if (status != ERR_AAC_NONE) {
+    lastErrno = status;
+    return nullptr;
+  }
+
+  if (sampleRate != frame.sampRateOut) {
+    this->sampleRate = frame.sampRateOut;
+  }
+
+  if (channelCount != frame.nChans) {
+    this->channelCount = frame.nChans;
+  }
+
+  outLen = frame.outputSamps * sizeof(int16_t);
+  return (uint8_t*)pcmData;
+}