--- /dev/null
+#ifndef _QUICKSYNC_ENCODER_IMPL_H
+#define _QUICKSYNC_ENCODER_IMPL_H 1
+
+#include <epoxy/egl.h>
+#include <va/va.h>
+
+#include <condition_variable>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <queue>
+#include <string>
+#include <stack>
+#include <thread>
+
+#include "audio_encoder.h"
+#include "defs.h"
+#include "timebase.h"
+#include "print_latency.h"
+
+#define SURFACE_NUM 16 /* 16 surfaces for source YUV */
+#define MAX_NUM_REF1 16 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
+#define MAX_NUM_REF2 32 // Seemingly a hardware-fixed value, not related to SURFACE_NUM
+
+struct __bitstream {
+ unsigned int *buffer;
+ int bit_offset;
+ int max_size_in_dword;
+};
+typedef struct __bitstream bitstream;
+
+// H.264 video comes out in encoding order (e.g. with two B-frames:
+// 0, 3, 1, 2, 6, 4, 5, etc.), but uncompressed video needs to
+// come in the right order. Since we do everything, including waiting
+// for the frames to come out of OpenGL, in encoding order, we need
+// a reordering buffer for uncompressed frames so that they come out
+// correctly. We go the super-lazy way of not making it understand
+// anything about the true order (which introduces some extra latency,
+// though); we know that for N B-frames we need at most (N-1) frames
+// in the reorder buffer, and can just sort on that.
+//
+// The class also deals with keeping a freelist as needed.
+class FrameReorderer {
+public:
+ FrameReorderer(unsigned queue_length, int width, int height);
+
+ struct Frame {
+ int64_t pts, duration;
+ uint8_t *data;
+ ReceivedTimestamps received_ts;
+
+ // Invert to get the smallest pts first.
+ bool operator< (const Frame &other) const { return pts > other.pts; }
+ };
+
+ // Returns the next frame to insert with its pts, if any. Otherwise -1 and nullptr.
+ // Does _not_ take ownership of data; a copy is taken if needed.
+ // The returned pointer is valid until the next call to reorder_frame, or destruction.
+ // As a special case, if queue_length == 0, will just return pts and data (no reordering needed).
+ Frame reorder_frame(int64_t pts, int64_t duration, uint8_t *data, const ReceivedTimestamps &received_ts);
+
+ // The same as reorder_frame, but without inserting anything. Used to empty the queue.
+ Frame get_first_frame();
+
+ bool empty() const { return frames.empty(); }
+
+private:
+ unsigned queue_length;
+ int width, height;
+
+ std::priority_queue<Frame> frames;
+ std::stack<uint8_t *> freelist; // Includes the last value returned from reorder_frame.
+
+ // Owns all the pointers. Normally, freelist and frames could do this themselves,
+ // except priority_queue doesn't work well with movable-only types.
+ std::vector<std::unique_ptr<uint8_t[]>> owner;
+};
+
+
+class QuickSyncEncoderImpl {
+public:
+ QuickSyncEncoderImpl(const std::string &filename, movit::ResourcePool *resource_pool, QSurface *surface, const std::string &va_display, int width, int height, AVOutputFormat *oformat, X264Encoder *x264_encoder, DiskSpaceEstimator *disk_space_estimator);
+ ~QuickSyncEncoderImpl();
+ 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);
+ void shutdown();
+ void release_gl_resources();
+ void set_stream_mux(Mux *mux)
+ {
+ stream_mux = mux;
+ }
+
+ // So we never get negative dts.
+ int64_t global_delay() const {
+ return int64_t(ip_period - 1) * (TIMEBASE / MAX_FPS);
+ }
+
+private:
+ struct storage_task {
+ unsigned long long display_order;
+ int frame_type;
+ std::vector<float> audio;
+ int64_t pts, dts, duration;
+ ReceivedTimestamps received_ts;
+ };
+ struct PendingFrame {
+ RefCountedGLsync fence;
+ std::vector<RefCountedFrame> input_frames;
+ int64_t pts, duration;
+ };
+
+ void open_output_file(const std::string &filename);
+ void encode_thread_func();
+ void encode_remaining_frames_as_p(int encoding_frame_num, int gop_start_display_frame_num, int64_t last_dts);
+ void add_packet_for_uncompressed_frame(int64_t pts, int64_t duration, const uint8_t *data);
+ void encode_frame(PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
+ int frame_type, int64_t pts, int64_t dts, int64_t duration);
+ void storage_task_thread();
+ void storage_task_enqueue(storage_task task);
+ void save_codeddata(storage_task task);
+ int render_packedsequence();
+ int render_packedpicture();
+ void render_packedslice();
+ int render_sequence();
+ int render_picture(int frame_type, int display_frame_num, int gop_start_display_frame_num);
+ void sps_rbsp(bitstream *bs);
+ void pps_rbsp(bitstream *bs);
+ int build_packed_pic_buffer(unsigned char **header_buffer);
+ int render_slice(int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num, int frame_type);
+ void slice_header(bitstream *bs);
+ int build_packed_seq_buffer(unsigned char **header_buffer);
+ int build_packed_slice_buffer(unsigned char **header_buffer);
+ int init_va(const std::string &va_display);
+ int deinit_va();
+ void enable_zerocopy_if_possible();
+ VADisplay va_open_display(const std::string &va_display);
+ void va_close_display(VADisplay va_dpy);
+ int setup_encode();
+ void release_encode();
+ void update_ReferenceFrames(int frame_type);
+ int update_RefPicList(int frame_type);
+
+ bool is_shutdown = false;
+ bool has_released_gl_resources = false;
+ bool use_zerocopy;
+ int drm_fd = -1;
+
+ std::thread encode_thread, storage_thread;
+
+ std::mutex storage_task_queue_mutex;
+ std::condition_variable storage_task_queue_changed;
+ int srcsurface_status[SURFACE_NUM]; // protected by storage_task_queue_mutex
+ std::queue<storage_task> storage_task_queue; // protected by storage_task_queue_mutex
+ bool storage_thread_should_quit = false; // protected by storage_task_queue_mutex
+
+ std::mutex frame_queue_mutex;
+ std::condition_variable frame_queue_nonempty;
+ bool encode_thread_should_quit = false; // under frame_queue_mutex
+
+ int current_storage_frame;
+
+ std::map<int, PendingFrame> pending_video_frames; // under frame_queue_mutex
+ movit::ResourcePool *resource_pool;
+ QSurface *surface;
+
+ std::unique_ptr<AudioEncoder> file_audio_encoder;
+
+ std::unique_ptr<FrameReorderer> reorderer;
+ X264Encoder *x264_encoder; // nullptr if not using x264.
+
+ Mux* stream_mux = nullptr; // To HTTP.
+ std::unique_ptr<Mux> file_mux; // To local disk.
+
+ Display *x11_display = nullptr;
+
+ // Encoder parameters
+ VADisplay va_dpy;
+ VAProfile h264_profile = (VAProfile)~0;
+ VAConfigAttrib config_attrib[VAConfigAttribTypeMax];
+ int config_attrib_num = 0, enc_packed_header_idx;
+
+ struct GLSurface {
+ VASurfaceID src_surface, ref_surface;
+ VABufferID coded_buf;
+
+ VAImage surface_image;
+ GLuint y_tex, cbcr_tex;
+
+ // Only if use_zerocopy == true.
+ EGLImage y_egl_image, cbcr_egl_image;
+
+ // Only if use_zerocopy == false.
+ GLuint pbo;
+ uint8_t *y_ptr, *cbcr_ptr;
+ size_t y_offset, cbcr_offset;
+ };
+ GLSurface gl_surfaces[SURFACE_NUM];
+
+ VAConfigID config_id;
+ VAContextID context_id;
+ VAEncSequenceParameterBufferH264 seq_param;
+ VAEncPictureParameterBufferH264 pic_param;
+ VAEncSliceParameterBufferH264 slice_param;
+ VAPictureH264 CurrentCurrPic;
+ VAPictureH264 ReferenceFrames[MAX_NUM_REF1], RefPicList0_P[MAX_NUM_REF2], RefPicList0_B[MAX_NUM_REF2], RefPicList1_B[MAX_NUM_REF2];
+
+ // Static quality settings.
+ static constexpr unsigned int frame_bitrate = 15000000 / 60; // Doesn't really matter; only initial_qp does.
+ static constexpr unsigned int num_ref_frames = 2;
+ static constexpr int initial_qp = 15;
+ static constexpr int minimal_qp = 0;
+ static constexpr int intra_period = 30;
+ static constexpr int intra_idr_period = MAX_FPS; // About a second; more at lower frame rates. Not ideal.
+
+ // Quality settings that are meant to be static, but might be overridden
+ // by the profile.
+ int constraint_set_flag = 0;
+ int h264_packedheader = 0; /* support pack header? */
+ int h264_maxref = (1<<16|1);
+ int h264_entropy_mode = 1; /* cabac */
+ int ip_period = 3;
+
+ int rc_mode = -1;
+ unsigned int current_frame_num = 0;
+ unsigned int numShortTerm = 0;
+
+ int frame_width;
+ int frame_height;
+ int frame_width_mbaligned;
+ int frame_height_mbaligned;
+
+ DiskSpaceEstimator *disk_space_estimator;
+};
+
+#endif // !defined(_QUICKSYNC_ENCODER_IMPL_H)
projects / nageru / blobdiff