ZLKMedia/3rdpart/media-server/libmpeg/include/mpeg-ts.h

#ifndef _mpeg_ts_h_
#define _mpeg_ts_h_

#include <stdint.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

#include "mpeg-proto.h"

struct mpeg_ts_func_t
{
	/// alloc new packet
	/// @param[in] param use-defined parameter(by mpeg_ps_create)
	/// @param[in] bytes alloc memory size in byte(default 188)
	/// @return memory pointer
	void* (*alloc)(void* param, size_t bytes);

	/// free packet
	/// @param[in] param use-defined parameter(by mpeg_ps_create)
	/// @param[in] packet PS packet pointer(alloc return pointer)
	void (*free)(void* param, void* packet);

	/// callback on PS packet done
	/// @param[in] param use-defined parameter(by mpeg_ps_create)
	/// @param[in] packet PS packet pointer(alloc return pointer)
	/// @param[in] bytes packet size
	/// @return 0-ok, other-error
	int (*write)(void* param, const void* packet, size_t bytes);
};

/// Create/Destroy MPEG2-TS muxer
void* mpeg_ts_create(const struct mpeg_ts_func_t *func, void* param);
int mpeg_ts_destroy(void* ts);

/// Add audio/video stream
/// @param[in] codecid PSI_STREAM_H264/PSI_STREAM_H265/PSI_STREAM_AAC, see more @mpeg-ts-proto.h
/// @param[in] extradata itu h.222.0 program and program element descriptors, NULL for H.264/H.265/AAC
/// @param[in] extradata_size extradata size in byte
/// @return <=0-error, >0-audio/video stream id
int mpeg_ts_add_stream(void* ts, int codecid, const void* extradata, size_t extradata_size);

/// Muxer audio/video stream data
/// @param[in] stream stream id by mpeg_ts_add_stream
/// @param[in] flags 0x0001-video IDR frame, 0x8000-H.264/H.265 with AUD
/// @param[in] pts audio/video stream timestamp in 90*ms
/// @param[in] dts audio/video stream timestamp in 90*ms
/// @param[in] data H.264/H.265-AnnexB stream(include 00 00 00 01), AAC-ADTS stream
/// @return 0-ok, other-error
int mpeg_ts_write(void* ts, int stream, int flags, int64_t pts, int64_t dts, const void* data, size_t bytes);

/// Reset PAT/PCR period
int mpeg_ts_reset(void* ts);


/// FOR MULTI-PROGRAM TS STREAM ONLY
/// Add a program
/// @param[in] pn program number, valid value: [1, 0xFFFF]
/// @return 0-OK, <0-error
int mpeg_ts_add_program(void* ts, uint16_t pn, const void* info, int bytes);

/// Remove a program by program number
/// @param[in] pn program number, valid value: [1, 0xFFFF]
/// @return 0-OK, <0-error
int mpeg_ts_remove_program(void* ts, uint16_t pn);

/// Add program stream(same as mpeg_ts_add_stream except program number)
/// @param[in] pn mpeg_ts_add_program program number
/// @return 0-OK, <0-error
int mpeg_ts_add_program_stream(void* ts, uint16_t pn, int codecid, const void* extra_data, size_t extra_data_size);


/// see more mpeg_ts_write
typedef int (*ts_demuxer_onpacket)(void* param, int program, int stream, int codecid, int flags, int64_t pts, int64_t dts, const void* data, size_t bytes);

struct ts_demuxer_t;
struct ts_demuxer_t* ts_demuxer_create(ts_demuxer_onpacket onpacket, void* param);
int ts_demuxer_destroy(struct ts_demuxer_t* demuxer);
int ts_demuxer_input(struct ts_demuxer_t* demuxer, const uint8_t* data, size_t bytes);
int ts_demuxer_flush(struct ts_demuxer_t* demuxer);
int ts_demuxer_getservice(struct ts_demuxer_t* demuxer, int program, char* provider, int nprovider, char* name, int nname);

struct ts_demuxer_notify_t
{
	/// @param[in] param ps_demuxer_set_notify param
	/// @param[in] stream ps stream id
	/// @param[in] codecid ps codecid, e.g. STREAM_VIDEO_H264
	/// @param[in] extra stream extra data
	/// @param[in] bytes extra data length
	/// @param[in] finish 0-have more stream, 1-no more streams
	void (*onstream)(void* param, int stream, int codecid, const void* extra, int bytes, int finish);
};

/// Set ts notify on PMT change
void ts_demuxer_set_notify(struct ts_demuxer_t* demuxer, struct ts_demuxer_notify_t* notify, void* param);

#ifdef __cplusplus
}
#endif
#endif /* !_mpeg_ts_h_ */