--- /dev/null
+// A class to orchestrate the concept of video encoding. Will keep track of
+// the muxes to stream and disk, the QuickSyncEncoder, and also the X264Encoder
+// (for the stream) if there is one.
+
+#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>
+
+extern "C" {
+#include <libavformat/avformat.h>
+#include <libavformat/avio.h>
+}
+
+#include "mux.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:
+ 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 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);
+
+ void change_x264_bitrate(unsigned rate_kbit);
+
+private:
+ void open_output_stream();
+ 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;
+ 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.
+
+ std::string stream_mux_header;
+ MuxMetrics stream_mux_metrics;
+
+ std::atomic<int> quicksync_encoders_in_shutdown{0};
+ std::atomic<int> overriding_bitrate{0};
+
+ // 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
projects / nageru / blobdiff