big merge

components/spotify/cspot/include/AudioChunkManager.h

@@ -0,0 +1,57 @@
+#ifndef AUDIOCHUNKMANAGER_H
+#define AUDIOCHUNKMANAGER_H
+
+#include <memory>
+#include <atomic>
+#include <algorithm>
+#include <mutex>
+#include "Utils.h"
+#include "AudioChunk.h"
+#include "Queue.h"
+#include "Task.h"
+
+#define DATA_SIZE_HEADER 24
+#define DATA_SIZE_FOOTER 2
+
+class AudioChunkManager : public bell::Task {
+    std::vector<std::shared_ptr<AudioChunk>> chunks;
+    bell::Queue<std::pair<std::vector<uint8_t>, bool>> audioChunkDataQueue;
+    void runTask();
+public:
+    AudioChunkManager();
+    std::atomic<bool> isRunning = false;
+    std::mutex runningMutex;
+    /**
+     * @brief Registers a new audio chunk request.
+     * 
+     * Registering an audiochunk will trigger a request to spotify servers.
+     * All the incoming data will be redirected to this given audiochunk.
+     * 
+     * @param seqId sequence identifier of given audio chunk.
+     * @param audioKey audio key of given file, used for decryption.
+     * @param startPos start position of audio chunk
+     * @param endPos end position of audio chunk. end - pos % 4 must be 0.
+     * @return std::shared_ptr<AudioChunk> registered audio chunk. Does not contain the data yet.
+     */
+    std::shared_ptr<AudioChunk> registerNewChunk(uint16_t seqId, std::vector<uint8_t> &audioKey, uint32_t startPos, uint32_t endPos);
+
+    /**
+     * @brief Pushes binary data from spotify's servers containing audio chunks.
+     * 
+     * This method pushes received data to a queue that is then received by manager's thread.
+     * That thread parses the data and passes it to a matching audio chunk.
+     * 
+     * @param data binary data received from spotify's servers
+     * @param failed whenever given chunk request failed
+     */
+    void handleChunkData(std::vector<uint8_t>& data, bool failed = false);
+
+    /**
+     * @brief Fails all requested chunks, used for reconnection.
+     */
+    void failAllChunks();
+
+    void close();
+};
+
+#endif