refine code, remove the base dts, donot drop start BP frames

@@ -151,7 +151,6 @@ int SrsClient::do_cycle()
 	// find a source to publish.
 	SrsSource* source = SrsSource::find(req->get_stream_url());
 	srs_assert(source != NULL);
-	SrsHLS* hls = source->get_hls();
 	
 	bool enabled_cache = true;
 	conf = config->get_gop_cache(req->vhost);
@@ -182,7 +181,6 @@ int SrsClient::do_cycle()
 			}
 			srs_info("start to publish stream %s success", req->stream.c_str());
 			ret = publish(source, true);
-			hls->on_unpublish();
 			source->on_unpublish();
 			return ret;
 		}
@@ -195,7 +193,6 @@ int SrsClient::do_cycle()
 			}
 			srs_info("flash start to publish stream %s success", req->stream.c_str());
 			ret = publish(source, false);
-			hls->on_unpublish();
 			source->on_unpublish();
 			return ret;
 		}
@@ -333,10 +330,9 @@ int SrsClient::publish(SrsSource* source, bool is_fmle)
 	srs_verbose("check publish_refer success.");
 	
 	SrsPithyPrint pithy_print(SRS_STAGE_PUBLISH_USER);
-	SrsHLS* hls = source->get_hls();
 	
 	// notify the hls to prepare when publish start.
-	if ((ret = hls->on_publish(req->vhost)) != ERROR_SUCCESS) {
+	if ((ret = source->on_publish(req->vhost)) != ERROR_SUCCESS) {
 		srs_error("hls on_publish failed. ret=%d", ret);
 		return ret;
 	}
@@ -362,7 +358,7 @@ int SrsClient::publish(SrsSource* source, bool is_fmle)
 				(int)(srs_get_system_time_ms()/1000), pithy_print.get_age(), rtmp->get_send_bytes(), rtmp->get_recv_bytes(), rtmp->get_send_kbps(), rtmp->get_recv_kbps());
 		}
 
-		if ((ret = process_publish_message(source, hls, msg, is_fmle)) != ERROR_SUCCESS) {
+		if ((ret = process_publish_message(source, msg, is_fmle)) != ERROR_SUCCESS) {
 			srs_error("process publish message failed. ret=%d", ret);
 			return ret;
 		}
@@ -371,16 +367,12 @@ int SrsClient::publish(SrsSource* source, bool is_fmle)
 	return ret;
 }
 
-int SrsClient::process_publish_message(SrsSource* source, SrsHLS* hls, SrsCommonMessage* msg, bool is_fmle)
+int SrsClient::process_publish_message(SrsSource* source, SrsCommonMessage* msg, bool is_fmle)
 {
 	int ret = ERROR_SUCCESS;
 	
 	// process audio packet
 	if (msg->header.is_audio()) {
-		if ((ret = hls->on_audio(msg)) != ERROR_SUCCESS) {
-			srs_error("hls process audio message failed. ret=%d", ret);
-			return ret;
-		}
 		if ((ret = source->on_audio(msg)) != ERROR_SUCCESS) {
 			srs_error("source process audio message failed. ret=%d", ret);
 			return ret;
@@ -388,10 +380,6 @@ int SrsClient::process_publish_message(SrsSource* source, SrsHLS* hls, SrsCommon
 	}
 	// process video packet
 	if (msg->header.is_video()) {
-		if ((ret = hls->on_video(msg)) != ERROR_SUCCESS) {
-			srs_error("hls process video message failed. ret=%d", ret);
-			return ret;
-		}
 		if ((ret = source->on_video(msg)) != ERROR_SUCCESS) {
 			srs_error("source process video message failed. ret=%d", ret);
 			return ret;
@@ -408,10 +396,6 @@ int SrsClient::process_publish_message(SrsSource* source, SrsHLS* hls, SrsCommon
 		SrsPacket* pkt = msg->get_packet();
 		if (dynamic_cast<SrsOnMetaDataPacket*>(pkt)) {
 			SrsOnMetaDataPacket* metadata = dynamic_cast<SrsOnMetaDataPacket*>(pkt);
-			if ((ret = hls->on_meta_data(metadata)) != ERROR_SUCCESS) {
-				srs_error("hls process onMetaData message failed. ret=%d", ret);
-				return ret;
-			}
 			if ((ret = source->on_meta_data(msg, metadata)) != ERROR_SUCCESS) {
 				srs_error("source process onMetaData message failed. ret=%d", ret);
 				return ret;

@@ -39,7 +39,6 @@ class SrsSource;
 class SrsRefer;
 class SrsConsumer;
 class SrsCommonMessage;
-class SrsHLS;
 
 /**
 * the client provides the main logic control for RTMP clients.
@@ -61,7 +60,7 @@ private:
 	virtual int check_vhost();
 	virtual int playing(SrsSource* source);
 	virtual int publish(SrsSource* source, bool is_fmle);
-	virtual int process_publish_message(SrsSource* source, SrsHLS* hls, SrsCommonMessage* msg, bool is_fmle);
+	virtual int process_publish_message(SrsSource* source, SrsCommonMessage* msg, bool is_fmle);
 	virtual int get_peer_ip();
 	virtual int process_play_control_msg(SrsConsumer* consumer, SrsCommonMessage* msg);
 };

@@ -281,6 +281,24 @@ u_int8_t mpegts_header[] = {
 // 63000: 700ms, ts_tbn=90000
 #define SRS_HLS_DELAY 63000
 
+// @see: ngx_rtmp_SrsMpegtsFrame_t
+struct SrsMpegtsFrame
+{
+    int64_t		pts;
+    int64_t		dts;
+    int  		pid;
+    int			sid;
+    int			cc;
+    bool		key;
+    
+    SrsMpegtsFrame()
+    {
+        pts = dts = 0;
+        pid = sid = cc = 0;
+        key = false;
+    }
+};
+
 // @see: ngx_rtmp_mpegts.c
 // TODO: support full mpegts feature in future.
 class SrsMpegtsWriter
@@ -298,7 +316,7 @@ public:
 
 		return ret;
 	}
-	static int write_frame(int fd, mpegts_frame* frame, SrsCodecBuffer* buffer)
+	static int write_frame(int fd, SrsMpegtsFrame* frame, SrsCodecBuffer* buffer)
 	{
 		int ret = ERROR_SUCCESS;
 		
@@ -512,13 +530,11 @@ SrsTSMuxer::SrsTSMuxer()
 {
 	fd = -1;
 	
-	// ffmpeg set the start time to the delay time.
-	base_dts = SRS_HLS_DELAY;
-	
 	audio_buffer = new SrsCodecBuffer();
 	video_buffer = new SrsCodecBuffer();
 	
-	got_iframe = false;
+	audio_frame = new SrsMpegtsFrame();
+	video_frame = new SrsMpegtsFrame();
 }
 
 SrsTSMuxer::~SrsTSMuxer()
@@ -530,6 +546,9 @@ SrsTSMuxer::~SrsTSMuxer()
 	
 	srs_freep(audio_buffer);
 	srs_freep(video_buffer);
+	
+	srs_freep(audio_frame);
+	srs_freep(video_frame);
 }
 
 int SrsTSMuxer::open(std::string _path)
@@ -560,9 +579,12 @@ int SrsTSMuxer::write_audio(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
 {
 	int ret = ERROR_SUCCESS;
 	
-	audio_frame.dts = audio_frame.pts = base_dts + time * 90;
-	audio_frame.pid = TS_AUDIO_PID;
-	audio_frame.sid = TS_AUDIO_AAC;
+	if (!audio_frame) {
+		audio_frame = new SrsMpegtsFrame();
+		audio_frame->dts = audio_frame->pts = time * 90;
+		audio_frame->pid = TS_AUDIO_PID;
+		audio_frame->sid = TS_AUDIO_AAC;
+	}
 	
 	for (int i = 0; i < sample->nb_buffers; i++) {
 		SrsCodecBuffer* buf = &sample->buffers[i];
@@ -631,18 +653,11 @@ int SrsTSMuxer::write_video(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
 {
 	int ret = ERROR_SUCCESS;
 	
-	video_frame.dts = base_dts + time * 90;
-	video_frame.pts = video_frame.dts + sample->cts * 90;
-	video_frame.pid = TS_VIDEO_PID;
-	video_frame.sid = TS_VIDEO_AVC;
-	video_frame.key = sample->frame_type == SrsCodecVideoAVCFrameKeyFrame;
-	
-	if (video_frame.key) {
-		got_iframe = true;
-	}
-	if (!got_iframe) {
-		return ret;
-	}
+	video_frame->dts = time * 90;
+	video_frame->pts = video_frame->dts + sample->cts * 90;
+	video_frame->pid = TS_VIDEO_PID;
+	video_frame->sid = TS_VIDEO_AVC;
+	video_frame->key = sample->frame_type == SrsCodecVideoAVCFrameKeyFrame;
 	
 	static u_int8_t aud_nal[] = { 0x00, 0x00, 0x00, 0x01, 0x09, 0xf0 };
 	video_buffer->append(aud_nal, sizeof(aud_nal));
@@ -669,8 +684,12 @@ int SrsTSMuxer::write_video(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
 		if (nal_unit_type == 1) {
 			sps_pps_sent = false;
 		}
-		// 5: Coded slice of an IDR picture
+		// 5: Coded slice of an IDR picture.
+		// insert sps/pps before IDR or key frame is ok.
 		if (nal_unit_type == 5 && !sps_pps_sent) {
+		//if (video_frame->key && !sps_pps_sent) {
+			sps_pps_sent = true;
+			
 			// ngx_rtmp_hls_append_sps_pps
 			if (codec->sequenceParameterSetLength > 0) {
 				// AnnexB prefix
@@ -700,12 +719,14 @@ int SrsTSMuxer::write_video(u_int32_t time, SrsCodec* codec, SrsCodecSample* sam
 		video_buffer->append(buf->bytes, buf->size);
 	}
 	
-	if ((ret = SrsMpegtsWriter::write_frame(fd, &video_frame, video_buffer)) != ERROR_SUCCESS) {
+	if ((ret = SrsMpegtsWriter::write_frame(fd, video_frame, video_buffer)) != ERROR_SUCCESS) {
 		return ret;
 	}
-	if ((ret = SrsMpegtsWriter::write_frame(fd, &audio_frame, audio_buffer)) != ERROR_SUCCESS) {
+	
+	if ((ret = SrsMpegtsWriter::write_frame(fd, audio_frame, audio_buffer)) != ERROR_SUCCESS) {
 		return ret;
 	}
+	srs_freep(audio_frame);
 	
 	return ret;
 }

@@ -35,6 +35,7 @@ class SrsOnMetaDataPacket;
 class SrsCommonMessage;
 class SrsCodecSample;
 class SrsCodecBuffer;
+class SrsMpegtsFrame;
 class SrsTSMuxer;
 class SrsCodec;
 
@@ -57,35 +58,15 @@ public:
 	virtual int on_video(SrsCommonMessage* video);
 };
 
-// @see: ngx_rtmp_mpegts_frame_t
-struct mpegts_frame
-{
-    int64_t		pts;
-    int64_t		dts;
-    int  		pid;
-    int			sid;
-    int			cc;
-    bool		key;
-    
-    mpegts_frame()
-    {
-        pts = dts = 0;
-        pid = sid = cc = 0;
-        key = false;
-    }
-};
-
 class SrsTSMuxer
 {
 private:
 	int fd;
 	std::string path;
 private:
-	bool got_iframe;
-	int64_t base_dts;
-	mpegts_frame audio_frame;
+	SrsMpegtsFrame* audio_frame;
 	SrsCodecBuffer* audio_buffer;
-	mpegts_frame video_frame;
+	SrsMpegtsFrame* video_frame;
 	SrsCodecBuffer* video_buffer;
 public:
 	SrsTSMuxer();

@@ -266,15 +266,15 @@ SrsSource::~SrsSource()
 	srs_freep(hls);
 }
 
-SrsHLS* SrsSource::get_hls()
-{
-	return hls;
-}
-
 int SrsSource::on_meta_data(SrsCommonMessage* msg, SrsOnMetaDataPacket* metadata)
 {
 	int ret = ERROR_SUCCESS;
 	
+	if ((ret = hls->on_meta_data(metadata)) != ERROR_SUCCESS) {
+		srs_error("hls process onMetaData message failed. ret=%d", ret);
+		return ret;
+	}
+	
 	metadata->metadata->set("server", new SrsAmf0String(
 		RTMP_SIG_SRS_KEY" "RTMP_SIG_SRS_VERSION" ("RTMP_SIG_SRS_URL_SHORT")"));
 	
@@ -336,6 +336,11 @@ int SrsSource::on_audio(SrsCommonMessage* audio)
 {
 	int ret = ERROR_SUCCESS;
 	
+	if ((ret = hls->on_audio(audio)) != ERROR_SUCCESS) {
+		srs_error("hls process audio message failed. ret=%d", ret);
+		return ret;
+	}
+	
 	SrsSharedPtrMessage* msg = new SrsSharedPtrMessage();
 	SrsAutoFree(SrsSharedPtrMessage, msg, false);
 	if ((ret = msg->initialize(audio, (char*)audio->payload, audio->size)) != ERROR_SUCCESS) {
@@ -381,6 +386,11 @@ int SrsSource::on_video(SrsCommonMessage* video)
 {
 	int ret = ERROR_SUCCESS;
 	
+	if ((ret = hls->on_video(video)) != ERROR_SUCCESS) {
+		srs_error("hls process video message failed. ret=%d", ret);
+		return ret;
+	}
+	
 	SrsSharedPtrMessage* msg = new SrsSharedPtrMessage();
 	SrsAutoFree(SrsSharedPtrMessage, msg, false);
 	if ((ret = msg->initialize(video, (char*)video->payload, video->size)) != ERROR_SUCCESS) {
@@ -422,8 +432,15 @@ int SrsSource::on_video(SrsCommonMessage* video)
 	return ret;
 }
 
+int SrsSource::on_publish(std::string vhost)
+{
+	return hls->on_publish(vhost);
+}
+
 void SrsSource::on_unpublish()
 {
+	hls->on_unpublish();
+	
 	clear_gop_cache();
 
 	srs_freep(cache_metadata);

@@ -143,15 +143,10 @@ public:
 	SrsSource(std::string _stream_url);
 	virtual ~SrsSource();
 public:
-	/**
-	* get the hls handler, which has a long lifecycle
-	* util the source destroyed.
-	*/
-	virtual SrsHLS* get_hls();
-public:
 	virtual int on_meta_data(SrsCommonMessage* msg, SrsOnMetaDataPacket* metadata);
 	virtual int on_audio(SrsCommonMessage* audio);
 	virtual int on_video(SrsCommonMessage* video);
+	virtual int on_publish(std::string vhost);
 	virtual void on_unpublish();
 public:
 	virtual int create_consumer(SrsConsumer*& consumer);