Files
squeezelite-esp32/components/spotify/cspot/include/AudioChunkManager.h
2022-01-06 18:46:57 -08:00

59 lines
1.9 KiB
C++

#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;
std::mutex chunkMutex;
/**
* @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