EasyHLS

EasyHLS是EasyDarwin開源流媒體團隊開發的一款HLS打包庫，接口非常簡單，只需要傳入打包的文件名、切片存放的目錄、單個切片時長以及切片數等參數，EasyHLS庫就能輕松將H264+AAC的流媒體切片成m3u8+ts，提供給WEB服務器進行HLS流媒體發布；

調用流程##

/* 打包H264視頻 */

EasyHLS_API int Easy_APICALL EasyHLS_VideoMux(Easy_HLS_Handle handle, unsigned int uiFrameType, unsigned char *data, int dataLength, unsigned long long pcr, unsigned long long pts, unsigned long long dts);

其中pcr、dts、pts等參數都是unsigned long long型，通常情況下為時間戳(ms毫秒)\*90以后的結果，所以我們通常需要定義：

unsigned long long pcr,dts,pts = timestamp\*90; 千萬不要定義unsigned int型接收數據輸入！具體過程參考上面的幾個示例；

EasyHLS_RTSP##

EasyHLS_RTSP程序可以通過RTSPClient將RTSP攝像機IPCamera的流媒體音視頻數據流獲取到本地，再進行ts的音視頻封裝打包，并不斷更新m3u8列表，以提供HLS直播功能：

Easy_HLS_HandlefHLSHandle= 0;

Easy_RTSP_HandlefRTSPHandle = 0;

/* RTSPClient獲取數據后回調給上層 */

int Easy_APICALL __RTSPClientCallBack( int _chid, void *_chPtr, int _frameType, char *_pBuf, RTSP_FRAME_INFO *_frameInfo)

{

if(NULL == fHLSHandle) return -1;

if (_frameType == EASY_SDK_VIDEO_FRAME_FLAG)

{

unsigned long long llPTS = (_frameInfo->timestamp_sec%1000000)*1000 + _frameInfo->timestamp_usec/1000;

printf("Get %s Video \tLen:%d \ttm:%u.%u \t%u\n",_frameInfo->type==EASY_SDK_VIDEO_FRAME_I?"I":"P", _frameInfo->length, _frameInfo->timestamp_sec, _frameInfo->timestamp_usec, llPTS);

unsigned int uiFrameType = 0;

if (_frameInfo->type == EASY_SDK_VIDEO_FRAME_I)

{

uiFrameType = TS_TYPE_PES_VIDEO_I_FRAME;

}

else if (_frameInfo->type == EASY_SDK_VIDEO_FRAME_P)

{

uiFrameType = TS_TYPE_PES_VIDEO_P_FRAME;

}

EasyHLS_VideoMux(fHLSHandle, uiFrameType, (unsigned char*)_pBuf, _frameInfo->length, llPTS*90, llPTS*90, llPTS*90);

}

else if (_frameType == EASY_SDK_AUDIO_FRAME_FLAG)

{

unsigned long long llPTS = (_frameInfo->timestamp_sec%1000000)*1000 + _frameInfo->timestamp_usec/1000;

printf("Get Audio \tLen:%d \ttm:%u.%u \t%u\n", _frameInfo->length, _frameInfo->timestamp_sec, _frameInfo->timestamp_usec, llPTS);

if (_frameInfo->codec == EASY_SDK_AUDIO_CODEC_AAC)

{

EasyHLS_AudioMux(fHLSHandle, (unsigned char*)_pBuf, _frameInfo->length, llPTS*90, llPTS*90);

}

}

else if (_frameType == EASY_SDK_EVENT_FRAME_FLAG)

{

if (NULL == _pBuf && NULL == _frameInfo)

{

printf("Connecting:%s ...\n", ConfigRTSPURL);

}

else if (NULL!=_frameInfo && _frameInfo->type==0xF1)

{

printf("Lose Packet:%s ...\n", ConfigRTSPURL);

}

}

return 0;

}

void PrintUsage()

{

printf("Usage:\n");

printf("------------------------------------------------------\n");

printf("%s [-c -C -v -t -d -n -u -U ]\n", ProgName);

printf("Help Mode: %s -h \n", ProgName );

printf("For example: %s -c 4 -C 0 -v 3 -t 4 -d ./ -n easyhls_rtsp -u rtsp://admin:admin@anfengde.f3322.org/22 -U http://www.easydarwin.org/easyhls/\n", ProgName);

printf("------------------------------------------------------\n");

}

int main(int argc, char * argv[])

{

#ifdef _WIN32

extern char* optarg;

#endif

int ch;

ProgName = argv[0];

PrintUsage();

while ((ch = getopt(argc,argv, "hc:C:v:t:d:n:u:U:")) != EOF)

{

switch(ch)

{

case 'h':

PrintUsage();

return 0;

break;

case 'c':

ConfigPlayListCapacity =atoi(optarg);

break;

case 'C':

ConfigAllowCache =atoi(optarg);

break;

case 'v':

ConfigM3U8Version =atoi(optarg);

break;

case 't':

ConfigTargetDuration =atoi(optarg);

break;

case 'd':

ConfigHLSRootDir =optarg;

break;

case 'n':

ConfigHLSessionName =optarg;

break;

case 'u':

ConfigRTSPURL =optarg;

break;

case 'U':

ConfigHttpRootUrl =optarg;

break;

case '?':

return 0;

break;

default:

break;

}

}

int isEasyHLSActivated = EasyHLS_Activate(KEY);

switch(isEasyHLSActivated)

{

case EASY_ACTIVATE_INVALID_KEY:

printf("EasyHLS_KEY is EASY_ACTIVATE_INVALID_KEY!\n");

break;

case EASY_ACTIVATE_TIME_ERR:

printf("EasyHLS_KEY is EASY_ACTIVATE_TIME_ERR!\n");

break;

case EASY_ACTIVATE_PROCESS_NAME_LEN_ERR:

printf("EasyHLS_KEY is EASY_ACTIVATE_PROCESS_NAME_LEN_ERR!\n");

break;

case EASY_ACTIVATE_PROCESS_NAME_ERR:

printf("EasyHLS_KEY is EASY_ACTIVATE_PROCESS_NAME_ERR!\n");

break;

case EASY_ACTIVATE_VALIDITY_PERIOD_ERR:

printf("EasyHLS_KEY is EASY_ACTIVATE_VALIDITY_PERIOD_ERR!\n");

break;

case EASY_ACTIVATE_SUCCESS:

printf("EasyHLS_KEY is EASY_ACTIVATE_SUCCESS!\n");

break;

}

if(EASY_ACTIVATE_SUCCESS != isEasyHLSActivated)

return -1;

if( EASY_ACTIVATE_SUCCESS != EasyRTSP_Activate(EasyRTSPClient_KEY))

return -1;

//創建EasyRTSPClient

EasyRTSP_Init(&fRTSPHandle);

if (NULL == fRTSPHandle) return 0;

unsigned int mediaType = EASY_SDK_VIDEO_FRAME_FLAG | EASY_SDK_AUDIO_FRAME_FLAG;

//設置數據回調處理

EasyRTSP_SetCallback(fRTSPHandle, __RTSPClientCallBack);

//打開RTSP流

EasyRTSP_OpenStream(fRTSPHandle, 0, ConfigRTSPURL, EASY_RTP_OVER_TCP, mediaType, 0, 0, NULL, 1000, 0, 0x01, 1);

//創建EasyHLS Session

fHLSHandle = EasyHLS_Session_Create(ConfigPlayListCapacity, ConfigAllowCache, ConfigM3U8Version);

char subDir[64] = { 0 };

sprintf(subDir,"%s/",ConfigHLSessionName);

EasyHLS_ResetStreamCache(fHLSHandle, ConfigHLSRootDir, subDir, ConfigHLSessionName, ConfigTargetDuration);

printf("HLS URL:%s%s/%s.m3u8\n", ConfigHLSRootDir, ConfigHLSessionName, ConfigHLSessionName);

printf("Press Enter exit...\n");

getchar();

EasyHLS_Session_Release(fHLSHandle);

fHLSHandle = 0;

EasyRTSP_CloseStream(fRTSPHandle);

EasyRTSP_Deinit(&fRTSPHandle);

fRTSPHandle = NULL;

return 0;

}

獲取更多信息

Author：Jason

Copyright ? EasyDarwin.org 2012-2016

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