mirror of
https://github.com/ossrs/srs.git
synced 2025-03-09 15:49:59 +00:00
96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
//
|
|
// Copyright (c) 2013-2023 The SRS Authors
|
|
//
|
|
// SPDX-License-Identifier: MIT or MulanPSL-2.0
|
|
//
|
|
|
|
#ifndef SRS_APP_FRAGMENT_HPP
|
|
#define SRS_APP_FRAGMENT_HPP
|
|
|
|
#include <srs_core.hpp>
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
// Represent a fragment, such as HLS segment, DVR segment or DASH segment.
|
|
// It's a media file, for example FLV or MP4, with duration.
|
|
class SrsFragment
|
|
{
|
|
private:
|
|
// The duration in srs_utime_t.
|
|
srs_utime_t dur;
|
|
// The full file path of fragment.
|
|
std::string filepath;
|
|
// The start DTS in srs_utime_t of segment.
|
|
srs_utime_t start_dts;
|
|
// Whether current segement contains sequence header.
|
|
bool sequence_header;
|
|
// The number of this segment, use in dash mpd.
|
|
uint64_t number_;
|
|
public:
|
|
SrsFragment();
|
|
virtual ~SrsFragment();
|
|
public:
|
|
// Append a frame with dts into fragment.
|
|
// @dts The dts of frame in ms.
|
|
virtual void append(int64_t dts);
|
|
// Get the start dts of fragment.
|
|
virtual srs_utime_t get_start_dts();
|
|
// Get the duration of fragment in srs_utime_t.
|
|
virtual srs_utime_t duration();
|
|
// Whether the fragment contains any sequence header.
|
|
virtual bool is_sequence_header();
|
|
// Set whether contains sequence header.
|
|
virtual void set_sequence_header(bool v);
|
|
// Get the full path of fragment.
|
|
virtual std::string fullpath();
|
|
// Set the full path of fragment.
|
|
virtual void set_path(std::string v);
|
|
// Unlink the fragment, to delete the file.
|
|
// @remark Ignore any error.
|
|
virtual srs_error_t unlink_file();
|
|
// Create the dir for file recursively.
|
|
virtual srs_error_t create_dir();
|
|
public:
|
|
// Get the temporary path for file.
|
|
virtual std::string tmppath();
|
|
// Unlink the temporary file.
|
|
virtual srs_error_t unlink_tmpfile();
|
|
// Rename the temp file to final file.
|
|
virtual srs_error_t rename();
|
|
public:
|
|
// Get or set the number of this fragment.
|
|
virtual void set_number(uint64_t n);
|
|
virtual uint64_t number();
|
|
};
|
|
|
|
// The fragment window manage a series of fragment.
|
|
class SrsFragmentWindow
|
|
{
|
|
private:
|
|
std::vector<SrsFragment*> fragments;
|
|
// The expired fragments, need to be free in future.
|
|
std::vector<SrsFragment*> expired_fragments;
|
|
public:
|
|
SrsFragmentWindow();
|
|
virtual ~SrsFragmentWindow();
|
|
public:
|
|
// Dispose all fragments, delete the files.
|
|
virtual void dispose();
|
|
// Append a new fragment, which is ready to delivery to client.
|
|
virtual void append(SrsFragment* fragment);
|
|
// Shrink the window, push the expired fragment to a queue.
|
|
virtual void shrink(srs_utime_t window);
|
|
// Clear the expired fragments.
|
|
virtual void clear_expired(bool delete_files);
|
|
// Get the max duration in srs_utime_t of all fragments.
|
|
virtual srs_utime_t max_duration();
|
|
public:
|
|
virtual bool empty();
|
|
virtual SrsFragment* first();
|
|
virtual int size();
|
|
virtual SrsFragment* at(int index);
|
|
};
|
|
|
|
#endif
|
|
|