For #299, use fragment for dvr FLV/MP4

trunk/src/app/srs_app_dvr.cpp

@@ -41,16 +41,15 @@ using namespace std;
 #include <srs_protocol_json.hpp>
 #include <srs_app_utility.hpp>
 #include <srs_kernel_mp4.hpp>
+#include <srs_app_fragment.hpp>
 
 SrsDvrSegmenter::SrsDvrSegmenter()
 {
     req = NULL;
     jitter = NULL;
     plan = NULL;
-    duration = 0;
-    stream_previous_pkt_time = -1;
     
-    path = "";
+    fragment = new SrsFragment();
     fs = new SrsFileWriter();
     jitter_algorithm = SrsRtmpJitterAlgorithmOFF;
 
@@ -61,6 +60,7 @@ SrsDvrSegmenter::~SrsDvrSegmenter()
 {
     _srs_config->unsubscribe(this);
 
+    srs_freep(fragment);
     srs_freep(jitter);
     srs_freep(fs);
 }
@@ -78,14 +78,9 @@ int SrsDvrSegmenter::initialize(SrsDvrPlan* p, SrsRequest* r)
     return ret;
 }
 
-string SrsDvrSegmenter::get_path()
+SrsFragment* SrsDvrSegmenter::current()
 {
-    return path;
-}
-
-int64_t SrsDvrSegmenter::get_duration()
-{
-    return duration;
+    return fragment;
 }
 
 int SrsDvrSegmenter::open()
@@ -97,32 +92,25 @@ int SrsDvrSegmenter::open()
         return ret;
     }
 
-    path = generate_path();
+    string path = generate_path();
     if (srs_path_exists(path)) {
         ret = ERROR_DVR_CANNOT_APPEND;
         srs_error("DVR can't append to exists path=%s. ret=%d", path.c_str(), ret);
         return ret;
     }
-    
-    tmp_dvr_file = path + ".tmp";
+    fragment->set_path(path);
     
     // create dir first.
-    std::string dir = srs_path_dirname(path);
-    if ((ret = srs_create_dir_recursively(dir)) != ERROR_SUCCESS) {
-        srs_error("create dir=%s failed. ret=%d", dir.c_str(), ret);
+    if ((ret = fragment->create_dir()) != ERROR_SUCCESS) {
         return ret;
     }
-    srs_info("create dir=%s ok", dir.c_str());
 
     // create jitter.
     srs_freep(jitter);
     jitter = new SrsRtmpJitter();
-    duration = 0;
-    
-    // fresh stream starting.
-    stream_previous_pkt_time = -1;
     
     // open file writer, in append or create mode.
+    string tmp_dvr_file = fragment->tmppath();
     if ((ret = fs->open(tmp_dvr_file)) != ERROR_SUCCESS) {
         srs_error("open file stream for file %s failed. ret=%d", path.c_str(), ret);
         return ret;
@@ -205,13 +193,8 @@ int SrsDvrSegmenter::close()
     fs->close();
     
     // when tmp flv file exists, reap it.
-    if (tmp_dvr_file != path) {
-        if (rename(tmp_dvr_file.c_str(), path.c_str()) < 0) {
-            ret = ERROR_SYSTEM_FILE_RENAME;
-            srs_error("rename flv file failed, %s => %s. ret=%d", 
-                tmp_dvr_file.c_str(), path.c_str(), ret);
-            return ret;
-        }
+    if ((ret = fragment->rename()) != ERROR_SUCCESS) {
+        return ret;
     }
 
     // TODO: FIXME: the http callback is async, which will trigger thread switch,
@@ -228,16 +211,7 @@ int SrsDvrSegmenter::on_update_duration(SrsSharedPtrMessage* msg)
 {
     int ret = ERROR_SUCCESS;
     
-    // no previous packet or timestamp overflow.
-    if (stream_previous_pkt_time < 0 || stream_previous_pkt_time > msg->timestamp) {
-        stream_previous_pkt_time = msg->timestamp;
-    }
-    
-    // collect segment and stream duration, timestamp overflow is ok.
-    duration += msg->timestamp - stream_previous_pkt_time;
-    
-    // update previous packet time
-    stream_previous_pkt_time = msg->timestamp;
+    fragment->append(msg->timestamp);
     
     return ret;
 }
@@ -326,7 +300,7 @@ int SrsDvrFlvSegmenter::refresh_metadata()
     }
     
     // duration to buf
-    SrsAmf0Any* dur = SrsAmf0Any::number((double)duration / 1000.0);
+    SrsAmf0Any* dur = SrsAmf0Any::number((double)fragment->duration() / 1000.0);
     SrsAutoFree(SrsAmf0Any, dur);
     
     stream.skip(-1 * stream.pos());
@@ -747,7 +721,11 @@ int SrsDvrPlan::on_reap_segment()
     int ret = ERROR_SUCCESS;
 
     int cid = _srs_context->get_id();
-    if ((ret = async->execute(new SrsDvrAsyncCallOnDvr(cid, req, segment->get_path()))) != ERROR_SUCCESS) {
+    
+    SrsFragment* fragment = segment->current();
+    string fullpath = fragment->fullpath();
+    
+    if ((ret = async->execute(new SrsDvrAsyncCallOnDvr(cid, req, fullpath))) != ERROR_SUCCESS) {
         return ret;
     }
 
@@ -916,7 +894,8 @@ int SrsDvrSegmentPlan::update_duration(SrsSharedPtrMessage* msg)
     srs_assert(segment);
     
     // ignore if duration ok.
-    if (cduration <= 0 || segment->get_duration() < cduration) {
+    SrsFragment* fragment = segment->current();
+    if (cduration <= 0 || fragment->duration() < cduration) {
         return ret;
     }
     

trunk/src/app/srs_app_dvr.hpp

@@ -45,6 +45,7 @@ class SrsJsonAny;
 class SrsJsonObject;
 class SrsThread;
 class SrsMp4Encoder;
+class SrsFragment;
 
 #include <srs_app_source.hpp>
 #include <srs_app_reload.hpp>
@@ -60,33 +61,22 @@ protected:
     SrsFileWriter* fs;
     // Whether wait keyframe to reap segment.
     bool wait_keyframe;
-    // The duration in ms of current segment.
-    int64_t duration;
-private:
-    // The path of current segment flv file path.
-    std::string path;
-    std::string tmp_dvr_file;
+    // The FLV/MP4 fragment file.
+    SrsFragment* fragment;
 private:
     SrsRequest* req;
     SrsDvrPlan* plan;
 private:
     SrsRtmpJitter* jitter;
     SrsRtmpJitterAlgorithm jitter_algorithm;
-private:
-    // The previous stream RTMP pkt time in ms, used to calc the duration.
-    // for the RTMP timestamp will overflow.
-    // TODO: FIXME: Use utility object to calc it.
-    int64_t stream_previous_pkt_time;
 public:
     SrsDvrSegmenter();
     virtual ~SrsDvrSegmenter();
 public:
     // Initialize the segment.
     virtual int initialize(SrsDvrPlan* p, SrsRequest* r);
-    // Get the current dvr path.
-    virtual std::string get_path();
-    // Get the duration in ms of segment.
-    virtual int64_t get_duration();
+    // Get the current framgnet.
+    virtual SrsFragment* current();
     // Open new segment file.
     // @param use_tmp_file Whether use tmp file for DVR, and rename when close.
     // @remark Ignore when file is already open.

trunk/src/app/srs_app_fragment.cpp

@@ -90,6 +90,22 @@ int SrsFragment::unlink_file()
     return ret;
 }
 
+int SrsFragment::create_dir()
+{
+    int ret = ERROR_SUCCESS;
+    
+    std::string segment_dir = srs_path_dirname(filepath);
+    
+    if ((ret = srs_create_dir_recursively(segment_dir)) != ERROR_SUCCESS) {
+        srs_error("Create dir %s failed. ret=%d", segment_dir.c_str(), ret);
+        return ret;
+    }
+    
+    srs_info("Create dir %s ok", segment_dir.c_str());
+    
+    return ret;
+}
+
 string SrsFragment::tmppath()
 {
     return filepath + ".tmp";

trunk/src/app/srs_app_fragment.hpp

@@ -67,6 +67,8 @@ public:
     // Unlink the fragment, to delete the file.
     // @remark Ignore any error.
     virtual int unlink_file();
+    // Create the dir for file recursively.
+    virtual int create_dir();
 public:
     // Get the temporary path for file.
     virtual std::string tmppath();

trunk/src/app/srs_app_hls.cpp

@@ -423,12 +423,9 @@ int SrsHlsMuxer::segment_open()
     current->uri += ts_url;
     
     // create dir recursively for hls.
-    std::string ts_dir = srs_path_dirname(current->fullpath());
-    if ((ret = srs_create_dir_recursively(ts_dir)) != ERROR_SUCCESS) {
-        srs_error("create app dir %s failed. ret=%d", ts_dir.c_str(), ret);
+    if ((ret = current->create_dir()) != ERROR_SUCCESS) {
         return ret;
     }
-    srs_info("create ts dir %s ok", ts_dir.c_str());
     
     // open temp ts file.
     std::string tmp_file = current->tmppath();