X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fvideo_encoder.h;h=1c2a9491148c50d1deeed8dacbe84b50b43fe627;hb=8acd52c4ad9cd890bc689601775255e55912783f;hp=76dd92fa12cb12ef7dc2d439f9f335d75dcaf6b4;hpb=eeda8995329601f9f4e35047358400833eeae68e;p=nageru

diff --git a/nageru/video_encoder.h b/nageru/video_encoder.h
index 76dd92f..1c2a949 100644
--- a/nageru/video_encoder.h
+++ b/nageru/video_encoder.h
@@ -14,16 +14,21 @@
 #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;
 class DiskSpaceEstimator;
 class HTTPD;
 class Mux;
@@ -51,7 +56,7 @@ public:
 	//
 	// The semantics of y_tex and cbcr_tex depend on is_zerocopy():
 	//
-	//   - If false, the are input parameters, ie., the caller
+	//   - If false, they are input parameters, ie., the caller
 	//     allocates textures. (The contents are not read before
 	//     end_frame() is called.)
 	//   - If true, they are output parameters, ie., VideoEncoder
@@ -74,11 +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);
 
-	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;
@@ -90,15 +100,27 @@ 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.
+#ifdef HAVE_AV1
+	std::unique_ptr<AV1Encoder> av1_encoder;  // nullptr if not using SVT-AV1.
+#endif
+
+	SRTSOCKET srt_sock = -1;
 
-	std::string stream_mux_header;
-	MuxMetrics stream_mux_metrics;
+	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};
+	std::atomic<bool> should_quit{false};
 
 	// Encoders that are shutdown, but need to call release_gl_resources()
 	// (or be deleted) from some thread with an OpenGL context.