From 0588c47bd2f261714d5721757df75c75dca4ecba Mon Sep 17 00:00:00 2001 From: xiongziliang <771730766@qq.com> Date: Thu, 9 Nov 2017 18:14:16 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96HLS=E5=BB=B6=E6=97=B6?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/Common/config.cpp | 4 +- src/MediaFile/HLSMaker.cpp | 145 ++++++++++++++++++------------------- src/MediaFile/HLSMaker.h | 7 +- 3 files changed, 78 insertions(+), 78 deletions(-) diff --git a/src/Common/config.cpp b/src/Common/config.cpp index 3d12bb8e..86e157a9 100644 --- a/src/Common/config.cpp +++ b/src/Common/config.cpp @@ -296,11 +296,11 @@ namespace Hls { #define HLS_FIELD "hls." //HLS切片时长,单位秒 -#define HLS_SEGMENT_DURATION 5 +#define HLS_SEGMENT_DURATION 0 const char kSegmentDuration[] = HLS_FIELD"segDur"; //HLS切片个数 -#define HLS_SEGMENT_NUM 3 +#define HLS_SEGMENT_NUM 1 const char kSegmentNum[] = HLS_FIELD"segNum"; //HLS文件写缓存大小 diff --git a/src/MediaFile/HLSMaker.cpp b/src/MediaFile/HLSMaker.cpp index 23252b03..8480e0fe 100644 --- a/src/MediaFile/HLSMaker.cpp +++ b/src/MediaFile/HLSMaker.cpp @@ -38,14 +38,14 @@ HLSMaker::HLSMaker(const string& strM3u8File, const string& strHttpUrl, if (ui32BufSize < 16 * 1024) { ui32BufSize = 16 * 1024; } - m_ui32BufSize = ui32BufSize; - if (ui32Duration < 5) { - ui32Duration = 5; - } - if (ui32Num < 2) { - ui32Num = 2; - } + if(ui32Duration < 0){ + ui32Duration = 0; + } + if(ui32Num < 1){ + ui32Num = 1; + } + m_ui32BufSize = ui32BufSize; m_ui64TsCnt = 0; m_strM3u8File = strM3u8File; m_strHttpUrl = strHttpUrl.substr(0, strHttpUrl.find_last_of('/') + 1); @@ -54,8 +54,7 @@ HLSMaker::HLSMaker(const string& strM3u8File, const string& strHttpUrl, m_strOutputPrefix = strM3u8File.substr(0, strM3u8File.find_last_of('.')); m_strFileName = m_strOutputPrefix.substr(m_strOutputPrefix.find_last_of('/') + 1); - m_strTmpFileName = m_strOutputPrefix + "-0.ts"; - m_ts.init(m_strTmpFileName, m_ui32BufSize); + m_ts.init(m_strOutputPrefix + "-0.ts", m_ui32BufSize); } @@ -65,91 +64,90 @@ HLSMaker::~HLSMaker() { File::delete_file(strDir.data()); } -int HLSMaker::write_index_file(int iFirstSegment, unsigned int uiLastSegment, - int iEnd) { - FILE *pIndexFp; - char *pcWriteBuf; - const char *pcTmpM3u8File = (m_strM3u8File).c_str(); - pIndexFp = File::createfile_file(pcTmpM3u8File, "w"); - if (pIndexFp == NULL) { - return -1; - } - if (iFirstSegment < 0) { - iFirstSegment = 0; - } - if (!pIndexFp) { - WarnL << "Could not open temporary m3u8 index file (" << pcTmpM3u8File - << "), no index file will be created"; - return -1; - } - - pcWriteBuf = (char *) malloc(sizeof(char) * 1024); - if (!pcWriteBuf) { - WarnL << "Could not allocate write buffer for index file, index file will be invalid"; - fclose(pIndexFp); - return -1; +bool HLSMaker::write_index_file(int iFirstSegment, unsigned int uiLastSegment, int iEnd) { + char acWriteBuf[1024]; + std::shared_ptr pM3u8File(File::createfile_file(m_strM3u8File.data(), "w"),[](FILE *fp){ + fclose(fp); + }); + if (!pM3u8File) { + WarnL << "Could not open temporary m3u8 index file (" << m_strM3u8File << "), no index file will be created"; + return false; } + if (iFirstSegment < 0) { + iFirstSegment = 0; + } + //最少1秒 + int maxSegmentDuration = 1; + for (auto dur : m_iDurations) { + dur /=1000; + if(dur > maxSegmentDuration){ + maxSegmentDuration = dur; + } + } if (m_ui32NumSegments) { - snprintf(pcWriteBuf, 1024, - "#EXTM3U\n#EXT-X-TARGETDURATION:%u\n#EXT-X-MEDIA-SEQUENCE:%u\n", - m_ui32SegmentDuration, iFirstSegment); + snprintf(acWriteBuf, + sizeof(acWriteBuf), + "#EXTM3U\n" + "#EXT-X-TARGETDURATION:%u\n" + "#EXT-X-MEDIA-SEQUENCE:%u\n", + maxSegmentDuration, + iFirstSegment); } else { - snprintf(pcWriteBuf, 1024, "#EXTM3U\n#EXT-X-TARGETDURATION:%u\n", - m_ui32SegmentDuration); + snprintf(acWriteBuf, + sizeof(acWriteBuf), + "#EXTM3U\n" + "#EXT-X-TARGETDURATION:%u\n", + maxSegmentDuration); } - if (fwrite(pcWriteBuf, strlen(pcWriteBuf), 1, pIndexFp) != 1) { + if (fwrite(acWriteBuf, strlen(acWriteBuf), 1, pM3u8File.get()) != 1) { WarnL << "Could not write to m3u8 index file, will not continue writing to index file"; - free(pcWriteBuf); - fclose(pIndexFp); - return -1; + return false; } for (unsigned int i = iFirstSegment; i < uiLastSegment; i++) { - snprintf(pcWriteBuf, 1024, "#EXTINF:%u,\n%s%s-%u.ts\n", - m_ui32SegmentDuration, m_strHttpUrl.c_str(), - m_strFileName.c_str(), i); - //printf(options.output_prefix); - if (fwrite(pcWriteBuf, strlen(pcWriteBuf), 1, pIndexFp) != 1) { + snprintf(acWriteBuf, + sizeof(acWriteBuf), + "#EXTINF:%.3f,\n%s%s-%u.ts\n", + m_iDurations[i-iFirstSegment]/1000.0, + m_strHttpUrl.c_str(), + m_strFileName.c_str(), + i); + if (fwrite(acWriteBuf, strlen(acWriteBuf), 1, pM3u8File.get()) != 1) { WarnL << "Could not write to m3u8 index file, will not continue writing to index file"; - free(pcWriteBuf); - fclose(pIndexFp); - return -1; + return false; } } if (iEnd) { - snprintf(pcWriteBuf, 1024, "#EXT-X-ENDLIST\n"); - if (fwrite(pcWriteBuf, strlen(pcWriteBuf), 1, pIndexFp) != 1) { + snprintf(acWriteBuf, sizeof(acWriteBuf), "#EXT-X-ENDLIST\n"); + if (fwrite(acWriteBuf, strlen(acWriteBuf), 1, pM3u8File.get()) != 1) { WarnL << "Could not write last file and endlist tag to m3u8 index file"; - free(pcWriteBuf); - fclose(pIndexFp); - return -1; + return false; } } - - free(pcWriteBuf); - fclose(pIndexFp); - - return 1; + return true; } -void HLSMaker::inputH264(void *data, uint32_t length, uint32_t timeStamp, - int type) { +void HLSMaker::inputH264(void *data, uint32_t length, uint32_t timeStamp, int type) { switch (type) { case 7: //SPS if (m_Timer.elapsedTime() >= m_ui32SegmentDuration * 1000) { + //关闭文件 m_ts.clear(); - m_strTmpFileName = StrPrinter << m_strOutputPrefix << '-' << (++m_ui64TsCnt) << ".ts" << endl; - if (!m_ts.init(m_strTmpFileName, m_ui32BufSize)) { + auto strTmpFileName = StrPrinter << m_strOutputPrefix << '-' << (++m_ui64TsCnt) << ".ts" << endl; + if (!m_ts.init(strTmpFileName, m_ui32BufSize)) { //创建文件失败 return; } - m_Timer.resetTime(); - removets(); - if (write_index_file(m_ui64TsCnt - m_ui32NumSegments, m_ui64TsCnt, 0) == -1) { - WarnL << "write_index_file error :" << get_uv_errmsg(); - } + //记录切片时间 + m_iDurations.push_back(m_Timer.elapsedTime()); + m_Timer.resetTime(); + if(removets()){ + //删除老的时间戳 + m_iDurations.pop_front(); + } + write_index_file(m_ui64TsCnt - m_ui32NumSegments, m_ui64TsCnt, 0); } case 1: //P //insert aud frame before p and SPS frame @@ -167,13 +165,14 @@ void HLSMaker::inputAAC(void *data, uint32_t length, uint32_t timeStamp) { m_ts.inputAAC((char *) data, length, timeStamp); } -void HLSMaker::removets() { +bool HLSMaker::removets() { if (m_ui64TsCnt <= m_ui32NumSegments) { - return; + return false; } - File::delete_file( (StrPrinter << m_strOutputPrefix << "-" - << m_ui64TsCnt - m_ui32NumSegments - 1 - << ".ts" << endl).data()); + File::delete_file((StrPrinter << m_strOutputPrefix << "-" + << m_ui64TsCnt - m_ui32NumSegments - 1 + << ".ts" << endl).data()); + return true; } } /* namespace MediaFile */ diff --git a/src/MediaFile/HLSMaker.h b/src/MediaFile/HLSMaker.h index 4155d474..518541bf 100644 --- a/src/MediaFile/HLSMaker.h +++ b/src/MediaFile/HLSMaker.h @@ -33,6 +33,7 @@ #include "Util/File.h" #include "Util/util.h" #include "Util/logger.h" +#include using namespace ZL::Util; @@ -65,15 +66,15 @@ private: string m_strHttpUrl; string m_strFileName; string m_strOutputPrefix; - string m_strTmpFileName; uint32_t m_ui32SegmentDuration; uint32_t m_ui32NumSegments; uint64_t m_ui64TsCnt; uint32_t m_ui32BufSize; Ticker m_Timer; + std::deque m_iDurations; - int write_index_file(int iFirstSegment, unsigned int uiLastSegment, int iEnd); - void removets(); + bool write_index_file(int iFirstSegment, unsigned int uiLastSegment, int iEnd); + bool removets(); }; } /* namespace MediaFile */