mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-01 09:01:33 +08:00
54 lines
2.2 KiB
C
54 lines
2.2 KiB
C
|
/*
|
|||
|
|
* Player.h
|
|||
|
|
*
|
|||
|
|
* Created on: 2016年12月2日
|
|||
|
|
* Author: xzl
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
#ifndef SRC_PLAYER_PLAYER_H_
|
|||
|
|
#define SRC_PLAYER_PLAYER_H_
|
|||
|
|
|
|||
|
|
#include <string>
|
|||
|
|
using namespace std;
|
|||
|
|
|
|||
|
|
typedef struct {
|
|||
|
|
uint16_t sequence;
|
|||
|
|
uint32_t timeStamp;
|
|||
|
|
unsigned char type;
|
|||
|
|
string data;
|
|||
|
|
} H264Frame;
|
|||
|
|
|
|||
|
|
//ADTS 头中相对有用的信息 采样率、声道数、帧长度
|
|||
|
|
typedef struct {
|
|||
|
|
unsigned int syncword; //12 bslbf 同步字The bit string ‘1111 1111 1111’，说明一个ADTS帧的开始
|
|||
|
|
unsigned int id; //1 bslbf MPEG 标示符, 设置为1
|
|||
|
|
unsigned int layer; //2 uimsbf Indicates which layer is used. Set to ‘00’
|
|||
|
|
unsigned int protection_absent; //1 bslbf 表示是否误码校验
|
|||
|
|
unsigned int profile; //2 uimsbf 表示使用哪个级别的AAC，如01 Low Complexity(LC)--- AACLC
|
|||
|
|
unsigned int sf_index; //4 uimsbf 表示使用的采样率下标
|
|||
|
|
unsigned int private_bit; //1 bslbf
|
|||
|
|
unsigned int channel_configuration; //3 uimsbf 表示声道数
|
|||
|
|
unsigned int original; //1 bslbf
|
|||
|
|
unsigned int home; //1 bslbf
|
|||
|
|
//下面的为改变的参数即每一帧都不同
|
|||
|
|
unsigned int copyright_identification_bit; //1 bslbf
|
|||
|
|
unsigned int copyright_identification_start; //1 bslbf
|
|||
|
|
unsigned int aac_frame_length; // 13 bslbf 一个ADTS帧的长度包括ADTS头和raw data block
|
|||
|
|
unsigned int adts_buffer_fullness; //11 bslbf 0x7FF 说明是码率可变的码流
|
|||
|
|
//no_raw_data_blocks_in_frame 表示ADTS帧中有number_of_raw_data_blocks_in_frame + 1个AAC原始帧.
|
|||
|
|
//所以说number_of_raw_data_blocks_in_frame == 0
|
|||
|
|
//表示说ADTS帧中有一个AAC数据块并不是说没有。(一个AAC原始帧包含一段时间内1024个采样及相关数据)
|
|||
|
|
unsigned int no_raw_data_blocks_in_frame; //2 uimsfb
|
|||
|
|
unsigned char data[2 * 1024 + 7];
|
|||
|
|
uint16_t sequence;
|
|||
|
|
uint32_t timeStamp;
|
|||
|
|
} AdtsFrame;
|
|||
|
|
|
|||
|
|
void makeAdtsHeader(const string &strAudioCfg,AdtsFrame &adts);
|
|||
|
|
void writeAdtsHeader(const AdtsFrame &adts, uint8_t *pcAdts) ;
|
|||
|
|
string makeAdtsConfig(const uint8_t *pcAdts);
|
|||
|
|
void getAACInfo(const AdtsFrame &adts,int &iSampleRate,int &iChannel);
|
|||
|
|
bool getAVCInfo(const string &strSps,int &iVideoWidth, int &iVideoHeight, float &iVideoFps);
|
|||
|
|
|
|||
|
|
#endif /* SRC_PLAYER_PLAYER_H_ */
|