X-Git-Url: https://git.sesse.net/?p=nageru;a=blobdiff_plain;f=video_encoder.h;h=21595a380c992b7df76c0d3531e0cee72b5b2cfe;hp=bb1be55c836641beacb2dcea2898c778ae331d58;hb=refs%2Fheads%2Fffmpeg-audio-only;hpb=4b286cabe961c426ce340a85167346012691d711

diff --git a/video_encoder.h b/video_encoder.h
index bb1be55..21595a3 100644
--- a/video_encoder.h
+++ b/video_encoder.h
@@ -5,64 +5,104 @@
 #ifndef _VIDEO_ENCODER_H
 #define _VIDEO_ENCODER_H
 
+#include <epoxy/gl.h>
+#include <movit/image_format.h>
+#include <stdbool.h>
 #include <stdint.h>
+#include <atomic>
 #include <memory>
+#include <mutex>
 #include <string>
 #include <vector>
 
-#include "audio_encoder.h"
+extern "C" {
+#include <libavformat/avformat.h>
+#include <libavformat/avio.h>
+}
+
 #include "mux.h"
-#include "ref_counted_frame.h"
 #include "ref_counted_gl_sync.h"
 
+class AudioEncoder;
+class DiskSpaceEstimator;
 class HTTPD;
+class Mux;
 class QSurface;
 class QuickSyncEncoder;
+class RefCountedFrame;
 class X264Encoder;
 
 namespace movit {
 class ResourcePool;
 }  // namespace movit
 
-class VideoEncoder : public KeyFrameSignalReceiver {
+class VideoEncoder {
 public:
-	VideoEncoder(movit::ResourcePool *resource_pool, QSurface *surface, const std::string &va_display, int width, int height, HTTPD *httpd);
+	VideoEncoder(movit::ResourcePool *resource_pool, QSurface *surface, const std::string &va_display, int width, int height, HTTPD *httpd, DiskSpaceEstimator *disk_space_estimator);
 	~VideoEncoder();
 
 	void add_audio(int64_t pts, std::vector<float> audio);
-	bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
-	RefCountedGLsync end_frame(int64_t pts, int64_t duration, const std::vector<RefCountedFrame> &input_frames);
+
+	bool is_zerocopy() const;
+
+	// Allocate a frame to render into. The returned two textures
+	// are yours to render into (build them into an FBO).
+	// Call end_frame() when you're done.
+	//
+	// The semantics of y_tex and cbcr_tex depend on is_zerocopy():
+	//
+	//   - If false, the 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
+	//     allocates textures and borrow them to you for rendering.
+	//     In this case, after end_frame(), you are no longer allowed
+	//     to use the textures; they are torn down and given to the
+	//     H.264 encoder.
+	bool begin_frame(int64_t pts, int64_t duration, movit::YCbCrLumaCoefficients ycbcr_coefficients, const std::vector<RefCountedFrame> &input_frames, GLuint *y_tex, GLuint *cbcr_tex);
+
+	// Call after you are done rendering into the frame; at this point,
+	// y_tex and cbcr_tex will be assumed done, and handed over to the
+	// encoder. The returned fence is purely a convenience; you do not
+	// need to use it for anything, but it's useful if you wanted to set
+	// one anyway.
+	RefCountedGLsync end_frame();
 
 	// Does a cut of the disk stream immediately ("frame" is used for the filename only).
 	void do_cut(int frame);
 
-	virtual void signal_keyframe() override {
-		stream_mux_writing_keyframes = true;
-	}
+	void change_x264_bitrate(unsigned rate_kbit);
 
 private:
 	void open_output_stream();
-	void close_output_stream();
-	static int write_packet_thunk(void *opaque, uint8_t *buf, int buf_size);
-	int write_packet(uint8_t *buf, int buf_size);
+	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);
 
-	std::unique_ptr<QuickSyncEncoder> quicksync_encoder;
+	AVOutputFormat *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;
 	QSurface *surface;
 	std::string va_display;
 	int width, height;
 	HTTPD *httpd;
+	DiskSpaceEstimator *disk_space_estimator;
+
+	bool seen_sync_markers = false;
 
 	std::unique_ptr<Mux> stream_mux;  // To HTTP.
 	std::unique_ptr<AudioEncoder> stream_audio_encoder;
 	std::unique_ptr<X264Encoder> x264_encoder;  // nullptr if not using x264.
 
-	// While Mux object is constructing, <stream_mux_writing_header> is true,
-	// and the header is being collected into stream_mux_header.
-	bool stream_mux_writing_header;
 	std::string stream_mux_header;
+	MuxMetrics stream_mux_metrics;
+
+	std::atomic<int> quicksync_encoders_in_shutdown{0};
+	std::atomic<int> overriding_bitrate{0};
 
-	bool stream_mux_writing_keyframes = false;
+	// Encoders that are shutdown, but need to call release_gl_resources()
+	// (or be deleted) from some thread with an OpenGL context.
+	std::vector<std::unique_ptr<QuickSyncEncoder>> qs_needing_cleanup;  // Under <qs_mu>.
 };
 
 #endif