applied platformio structure

lib/spotify/cspot/bell/main/audio-containers/AudioContainers.cpp

@@ -0,0 +1,39 @@
+#include "AudioContainers.h"
+
+#include <string.h>      // for memcmp
+#include <cstddef>       // for byte
+#include "BellLogger.h"  // for BellLogger
+
+#include "ADTSContainer.h"  // for AACContainer
+#include "CodecType.h"      // for bell
+#include "MP3Container.h"   // for MP3Container
+
+namespace bell {
+class AudioContainer;
+}  // namespace bell
+
+using namespace bell;
+
+std::unique_ptr<bell::AudioContainer> AudioContainers::guessAudioContainer(
+    std::istream& istr) {
+  std::byte tmp[14];
+  istr.read((char*)tmp, sizeof(tmp));
+
+  if (memcmp(tmp, "\xFF\xF1", 2) == 0 || memcmp(tmp, "\xFF\xF9", 2) == 0) {
+    // AAC found
+    BELL_LOG(info, "AudioContainers",
+             "Mime guesser found AAC in ADTS format, creating ADTSContainer");
+    return std::make_unique<bell::ADTSContainer>(istr, tmp);
+  } else if (memcmp(tmp, "\xFF\xFB", 2) == 0 ||
+             memcmp(tmp, "\x49\x44\x33", 3) == 0) {
+    // MP3 Found
+    BELL_LOG(info, "AudioContainers",
+             "Mime guesser found MP3 format, creating MP3Container");
+
+    return std::make_unique<bell::MP3Container>(istr, tmp);
+  }
+
+  BELL_LOG(error, "AudioContainers",
+           "Mime guesser found no supported format [%X, %X]", tmp[0], tmp[1]);
+  return nullptr;
+}