HTTP-FMP4: 修复http-fmp4直播秒开问题

src/FMP4/FMP4MediaSource.h

@@ -64,9 +64,7 @@ public:
      */
     void setInitSegment(string str) {
         _init_segment = std::move(str);
-        if (_ring) {
-            regist();
-        }
+        createRing();
     }
 
     /**

src/FMP4/FMP4MediaSourceMuxer.h

@@ -72,7 +72,7 @@ public:
     }
 
 protected:
-    void onSegmentData(const string &string, uint32_t stamp, bool key_frame) override {
+    void onSegmentData(string string, uint32_t stamp, bool key_frame) override {
         if (string.empty()) {
             return;
         }

src/Record/MP4Muxer.cpp

@@ -9,10 +9,12 @@
  */
 
 #ifdef ENABLE_MP4
+
 #include "MP4Muxer.h"
 #include "Util/File.h"
 #include "Extension/H264.h"
-namespace mediakit{
+
+namespace mediakit {
 
 MP4Muxer::MP4Muxer() {}
 
@@ -20,19 +22,19 @@ MP4Muxer::~MP4Muxer() {
     closeMP4();
 }
 
-void MP4Muxer::openMP4(const string &file){
+void MP4Muxer::openMP4(const string &file) {
     closeMP4();
     _file_name = file;
     _mp4_file = std::make_shared<MP4FileDisk>();
     _mp4_file->openFile(_file_name.data(), "wb+");
 }
 
-MP4FileIO::Writer MP4Muxer::createWriter(){
+MP4FileIO::Writer MP4Muxer::createWriter() {
     GET_CONFIG(bool, mp4FastStart, Record::kFastStart);
     return _mp4_file->createWriter(mp4FastStart ? MOV_FLAG_FASTSTART : 0, false);
 }
 
-void MP4Muxer::closeMP4(){
+void MP4Muxer::closeMP4() {
     MP4MuxerInterface::resetTracks();
     _mp4_file = nullptr;
 }
@@ -44,15 +46,15 @@ void MP4Muxer::resetTracks() {
 
 /////////////////////////////////////////// MP4MuxerInterface /////////////////////////////////////////////
 
-void MP4MuxerInterface::saveSegment(){
+void MP4MuxerInterface::saveSegment() {
     mp4_writer_save_segment(_mov_writter.get());
 }
 
-void MP4MuxerInterface::initSegment(){
+void MP4MuxerInterface::initSegment() {
     mp4_writer_init_segment(_mov_writter.get());
 }
 
-bool MP4MuxerInterface::haveVideo() const{
+bool MP4MuxerInterface::haveVideo() const {
     return _have_video;
 }
 
@@ -66,7 +68,7 @@ void MP4MuxerInterface::resetTracks() {
 
 bool MP4MuxerInterface::inputFrame(const Frame::Ptr &frame) {
     auto it = _codec_to_trackid.find(frame->getCodecId());
-    if(it == _codec_to_trackid.end()){
+    if (it == _codec_to_trackid.end()) {
         //该Track不存在或初始化失败
         return false;
     }
@@ -84,7 +86,6 @@ bool MP4MuxerInterface::inputFrame(const Frame::Ptr &frame) {
     //mp4文件时间戳需要从0开始
     auto &track_info = it->second;
     int64_t dts_out, pts_out;
-
     switch (frame->getCodecId()) {
         case CodecH264:
         case CodecH265: {
@@ -117,7 +118,7 @@ bool MP4MuxerInterface::inputFrame(const Frame::Ptr &frame) {
     return true;
 }
 
-static uint8_t getObject(CodecId codecId){
+static uint8_t getObject(CodecId codecId) {
     switch (codecId){
         case CodecG711A : return MOV_OBJECT_G711a;
         case CodecG711U : return MOV_OBJECT_G711u;
@@ -129,8 +130,8 @@ static uint8_t getObject(CodecId codecId){
     }
 }
 
-void MP4MuxerInterface::stampSync(){
-    if(_codec_to_trackid.size() < 2){
+void MP4MuxerInterface::stampSync() {
+    if (_codec_to_trackid.size() < 2) {
         return;
     }
 
@@ -143,7 +144,7 @@ void MP4MuxerInterface::stampSync(){
         }
     }
 
-    if(audio && video){
+    if (audio && video) {
         //音频时间戳同步于视频，因为音频时间戳被修改后不影响播放
         audio->syncTo(*video);
     }
@@ -202,7 +203,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
                                                  audio_track->getAudioSampleRate(),
                                                  audio_track->getAacCfg().data(),
                                                  audio_track->getAacCfg().size());
-            if(track_id < 0){
+            if (track_id < 0) {
                 WarnL << "添加AAC Track失败:" << track_id;
                 return false;
             }
@@ -220,7 +221,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
             struct mpeg4_avc_t avc = {0};
             string sps_pps = string("\x00\x00\x00\x01", 4) + h264_track->getSps() +
                              string("\x00\x00\x00\x01", 4) + h264_track->getPps();
-            h264_annexbtomp4(&avc, sps_pps.data(), (int)sps_pps.size(), NULL, 0, NULL, NULL);
+            h264_annexbtomp4(&avc, sps_pps.data(), (int) sps_pps.size(), NULL, 0, NULL, NULL);
 
             uint8_t extra_data[1024];
             int extra_data_size = mpeg4_avc_decoder_configuration_record_save(&avc, extra_data, sizeof(extra_data));
@@ -236,7 +237,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
                                                  extra_data,
                                                  extra_data_size);
 
-            if(track_id < 0){
+            if (track_id < 0) {
                 WarnL << "添加H264 Track失败:" << track_id;
                 return false;
             }
@@ -256,7 +257,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
             string vps_sps_pps = string("\x00\x00\x00\x01", 4) + h265_track->getVps() +
                                  string("\x00\x00\x00\x01", 4) + h265_track->getSps() +
                                  string("\x00\x00\x00\x01", 4) + h265_track->getPps();
-            h265_annexbtomp4(&hevc, vps_sps_pps.data(), (int)vps_sps_pps.size(), NULL, 0, NULL, NULL);
+            h265_annexbtomp4(&hevc, vps_sps_pps.data(), (int) vps_sps_pps.size(), NULL, 0, NULL, NULL);
 
             uint8_t extra_data[1024];
             int extra_data_size = mpeg4_hevc_decoder_configuration_record_save(&hevc, extra_data, sizeof(extra_data));
@@ -271,7 +272,7 @@ bool MP4MuxerInterface::addTrack(const Track::Ptr &track) {
                                                  h265_track->getVideoHeight(),
                                                  extra_data,
                                                  extra_data_size);
-            if(track_id < 0){
+            if (track_id < 0) {
                 WarnL << "添加H265 Track失败:" << track_id;
                 return false;
             }
@@ -298,7 +299,7 @@ MP4FileIO::Writer MP4MuxerMemory::createWriter() {
     return _memory_file->createWriter(MOV_FLAG_SEGMENT, true);
 }
 
-const string &MP4MuxerMemory::getInitSegment(){
+const string &MP4MuxerMemory::getInitSegment() {
     if (_init_segment.empty()) {
         initSegment();
         saveSegment();
@@ -307,34 +308,36 @@ const string &MP4MuxerMemory::getInitSegment(){
     return _init_segment;
 }
 
-void MP4MuxerMemory::resetTracks(){
+void MP4MuxerMemory::resetTracks() {
     MP4MuxerInterface::resetTracks();
     _memory_file = std::make_shared<MP4FileMemory>();
     _init_segment.clear();
 }
 
-bool MP4MuxerMemory::inputFrame(const Frame::Ptr &frame){
+bool MP4MuxerMemory::inputFrame(const Frame::Ptr &frame) {
     if (_init_segment.empty()) {
         //尚未生成init segment
         return false;
     }
 
-    auto key_frame = frame->keyFrame();
-    auto data = _memory_file->getAndClearMemory();
-    if (!data.empty()) {
+    bool key_frame = frame->keyFrame();
+
     //flush切片
     saveSegment();
+
+    auto data = _memory_file->getAndClearMemory();
+    if (!data.empty()) {
         //输出切片数据
-        onSegmentData(data, frame->dts(), _key_frame);
+        onSegmentData(std::move(data), frame->dts(), _key_frame);
         _key_frame = false;
     }
 
     if (key_frame) {
         _key_frame = true;
     }
+
     return MP4MuxerInterface::inputFrame(frame);
 }
 
-
 }//namespace mediakit
 #endif//#ifdef ENABLE_MP4

src/Record/MP4Muxer.h

@@ -134,7 +134,7 @@ protected:
      * @param stamp 切片末尾时间戳
      * @param key_frame 是否有关键帧
      */
-    virtual void onSegmentData(const string &string, uint32_t stamp, bool key_frame) = 0;
+    virtual void onSegmentData(string string, uint32_t stamp, bool key_frame) = 0;
 
 protected:
     MP4FileIO::Writer createWriter() override;