X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fvideo_encoder.h;h=91d2c756471a90eac5dbdc3b6d3e60982580fc59;hb=1ea13d66da4aca375505b550bd207ad1c14d298f;hp=7a5fef1ac4dfd9cadc07bc6492b1281213a327f4;hpb=8bb8bb7cc9700befab35a8cc2c4b7a88f0638af9;p=nageru

diff --git a/nageru/video_encoder.h b/nageru/video_encoder.h
index 7a5fef1..91d2c75 100644
--- a/nageru/video_encoder.h
+++ b/nageru/video_encoder.h
@@ -14,14 +14,18 @@
 #include <mutex>
 #include <string>
 #include <vector>
+#include <chrono>
 
 extern "C" {
 #include <libavformat/avformat.h>
 #include <libavformat/avio.h>
 }
 
+#include <srt/srt.h>
+
 #include "shared/mux.h"
 #include "shared/ref_counted_gl_sync.h"
+#include "srt_metrics.h"
 
 class AudioEncoder;
 class AV1Encoder;
@@ -75,11 +79,16 @@ public:
 	void change_x264_bitrate(unsigned rate_kbit);
 
 private:
-	void open_output_stream();
+	void open_output_streams();
 	static int write_packet2_thunk(void *opaque, uint8_t *buf, int buf_size, AVIODataMarkerType type, int64_t time);
 	int write_packet2(uint8_t *buf, int buf_size, AVIODataMarkerType type, int64_t time);
 
-	const AVOutputFormat *oformat;
+	static int write_srt_packet_thunk(void *opaque, uint8_t *buf, int buf_size);
+	int write_srt_packet(uint8_t *buf, int buf_size);
+	int open_srt_socket();  // Returns -1 on error.
+	int connect_to_srt();  // Returns -1 on error.
+
+	const AVOutputFormat *oformat, *srt_oformat;
 	mutable std::mutex qs_mu, qs_audio_mu;
 	std::unique_ptr<QuickSyncEncoder> quicksync_encoder;  // Under <qs_mu> _and_ <qs_audio_mu>.
 	movit::ResourcePool *resource_pool;
@@ -91,7 +100,8 @@ private:
 
 	bool seen_sync_markers = false;
 
-	std::unique_ptr<Mux> stream_mux;  // To HTTP.
+	std::unique_ptr<Mux> http_mux;  // To the HTTP server.
+	std::unique_ptr<Mux> srt_mux;  // To the SRT endpoint (if any).
 	std::unique_ptr<AudioEncoder> stream_audio_encoder;
 	std::unique_ptr<X264Encoder> x264_encoder;  // nullptr if not using x264.
 	std::unique_ptr<X264Encoder> x264_disk_encoder;  // nullptr if not using x264, or if not having separate disk encodes.
@@ -99,8 +109,14 @@ private:
 	std::unique_ptr<AV1Encoder> av1_encoder;  // nullptr if not using SVT-AV1.
 #endif
 
-	std::string stream_mux_header;
-	MuxMetrics stream_mux_metrics;
+	SRTSOCKET srt_sock = -1;
+
+	std::string http_mux_header;
+	MuxMetrics http_mux_metrics;
+	MuxMetrics srt_mux_metrics;
+	SRTMetrics srt_metrics;
+	std::atomic<int64_t> metric_srt_num_connection_attempts{0};
+	std::atomic<bool> want_srt_metric_update{true};  // Is nominally set every frame. Some racing is OK (this is mainly a rate-limiter).
 
 	std::atomic<int> quicksync_encoders_in_shutdown{0};
 	std::atomic<int> overriding_bitrate{0};