Set realtime priority for the DeckLink thread if possible, to reduce jitter.

[nageru] / quicksync_encoder.h

diff --git a/quicksync_encoder.h b/quicksync_encoder.h
index a247ee80fe6bf8b6bfc1890601d85ecccd1113b2..f4e9e0b57e37c890b44536a24e86babd9d2dd558 100644 (file)
--- a/quicksync_encoder.h
+++ b/quicksync_encoder.h
@@ -1,5 +1,10 @@
-// Hardware H.264 encoding via VAAPI. Heavily modified based on example
-// code by Intel. Intel's original copyright and license is reproduced below:
+// Hardware H.264 encoding via VAAPI. Also orchestrates the H.264 encoding
+// in general; this is unfortunate, and probably needs a cleanup. In particular,
+// even if you don't actually use Quick Sync for anything, this class
+// (or actually, QuickSyncEncoderImpl) still takes on a pretty central role.
+//
+// Heavily modified based on example code by Intel. Intel's original copyright
+// and license is reproduced below:
 //
 // Copyright (c) 2007-2013 Intel Corporation. All Rights Reserved.
 //
@@ -61,9 +66,13 @@ public:
 
        void set_stream_mux(Mux *mux);  // Does not take ownership. Must be called unless x264 is used for the stream.
        void add_audio(int64_t pts, std::vector<float> audio);
+       bool is_zerocopy() const;
+
+       // See VideoEncoder::begin_frame().
        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);
        RefCountedGLsync end_frame();
        void shutdown();  // Blocking. Does not require an OpenGL context.
+       void close_file();  // Does not require an OpenGL context. Must be run after shutdown.
        void release_gl_resources();  // Requires an OpenGL context. Must be run after shutdown.
        int64_t global_delay() const;  // So we never get negative dts.