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pants
2025-12-28 13:55:10 -08:00
commit 9b4219aa67
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include/replay_buffer/replay_buffer.h Normal file
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#ifndef GSR_REPLAY_BUFFER_H
#define GSR_REPLAY_BUFFER_H
#include "../defs.h"
#include <pthread.h>
#include <stdbool.h>
#include <libavcodec/packet.h>
typedef struct gsr_replay_buffer gsr_replay_buffer;
typedef struct {
size_t packet_index;
size_t file_index;
} gsr_replay_buffer_iterator;
struct gsr_replay_buffer {
void (*destroy)(gsr_replay_buffer *self);
bool (*append)(gsr_replay_buffer *self, const AVPacket *av_packet, double timestamp);
void (*clear)(gsr_replay_buffer *self);
AVPacket* (*iterator_get_packet)(gsr_replay_buffer *self, gsr_replay_buffer_iterator iterator);
/* The returned data should be free'd with free */
uint8_t* (*iterator_get_packet_data)(gsr_replay_buffer *self, gsr_replay_buffer_iterator iterator);
/* The clone has to be destroyed before the replay buffer it clones is destroyed */
gsr_replay_buffer* (*clone)(gsr_replay_buffer *self);
/* Returns {0, 0} if replay buffer is empty */
gsr_replay_buffer_iterator (*find_packet_index_by_time_passed)(gsr_replay_buffer *self, int seconds);
/* Returns {-1, 0} if not found */
gsr_replay_buffer_iterator (*find_keyframe)(gsr_replay_buffer *self, gsr_replay_buffer_iterator start_iterator, int stream_index, bool invert_stream_index);
bool (*iterator_next)(gsr_replay_buffer *self, gsr_replay_buffer_iterator *iterator);
pthread_mutex_t mutex;
bool mutex_initialized;
gsr_replay_buffer *original_replay_buffer;
};
gsr_replay_buffer* gsr_replay_buffer_create(gsr_replay_storage replay_storage, const char *replay_directory, double replay_buffer_time, size_t replay_buffer_num_packets);
void gsr_replay_buffer_destroy(gsr_replay_buffer *self);
void gsr_replay_buffer_lock(gsr_replay_buffer *self);
void gsr_replay_buffer_unlock(gsr_replay_buffer *self);
bool gsr_replay_buffer_append(gsr_replay_buffer *self, const AVPacket *av_packet, double timestamp);
void gsr_replay_buffer_clear(gsr_replay_buffer *self);
AVPacket* gsr_replay_buffer_iterator_get_packet(gsr_replay_buffer *self, gsr_replay_buffer_iterator iterator);
/* The returned data should be free'd with free */
uint8_t* gsr_replay_buffer_iterator_get_packet_data(gsr_replay_buffer *self, gsr_replay_buffer_iterator iterator);
/* The clone has to be destroyed before the replay buffer it clones is destroyed */
gsr_replay_buffer* gsr_replay_buffer_clone(gsr_replay_buffer *self);
/* Returns {0, 0} if replay buffer is empty */
gsr_replay_buffer_iterator gsr_replay_buffer_find_packet_index_by_time_passed(gsr_replay_buffer *self, int seconds);
/* Returns {-1, 0} if not found */
gsr_replay_buffer_iterator gsr_replay_buffer_find_keyframe(gsr_replay_buffer *self, gsr_replay_buffer_iterator start_iterator, int stream_index, bool invert_stream_index);
bool gsr_replay_buffer_iterator_next(gsr_replay_buffer *self, gsr_replay_buffer_iterator *iterator);
#endif /* GSR_REPLAY_BUFFER_H */