Add a menu option to change x264 video bitrate while running.

[nageru] / mixer.h

diff --git a/mixer.h b/mixer.h
index e893ffb8427728b235d21f93c7a9169991c14aef..21b22552049d78c7ec9e7438648fccfcb7ed987e 100644 (file)
--- a/mixer.h
+++ b/mixer.h
@@ -49,7 +49,6 @@ class ResourcePool;
 namespace movit {
 class YCbCrInput;
 }
-class QOpenGLContext;
 class QSurfaceFormat;
 
 // For any card that's not the master (where we pick out the frames as they
@@ -388,13 +387,20 @@ public:
                cards[card_index].capture->set_audio_input(input);
        }
 
+       void change_x264_bitrate(unsigned rate_kbit) {
+               video_encoder->change_x264_bitrate(rate_kbit);
+       }
+
 private:
-       void configure_card(unsigned card_index, const QSurfaceFormat &format, CaptureInterface *capture);
+       void configure_card(unsigned card_index, CaptureInterface *capture, bool is_fake_capture);
        void bm_frame(unsigned card_index, uint16_t timecode,
                FrameAllocator::Frame video_frame, size_t video_offset, VideoFormat video_format,
                FrameAllocator::Frame audio_frame, size_t audio_offset, AudioFormat audio_format);
+       void bm_hotplug_add(libusb_device *dev);
+       void bm_hotplug_remove(unsigned card_index);
        void place_rectangle(movit::Effect *resample_effect, movit::Effect *padding_effect, float x0, float y0, float x1, float y1);
        void thread_func();
+       void handle_hotplugged_cards();
        void schedule_audio_resampling_tasks(unsigned dropped_frames, int num_samples_per_frame, int length_per_frame);
        void render_one_frame(int64_t duration);
        void send_audio_level_callback();
@@ -424,13 +430,14 @@ private:
        int64_t pts_int = 0;  // In TIMEBASE units.
 
        std::mutex bmusb_mutex;
+       bool has_bmusb_thread = false;
        struct CaptureCard {
-               CaptureInterface *capture;
+               CaptureInterface *capture = nullptr;
+               bool is_fake_capture;
                std::unique_ptr<PBOFrameAllocator> frame_allocator;
 
                // Stuff for the OpenGL context (for texture uploading).
-               QSurface *surface;
-               QOpenGLContext *context;
+               QSurface *surface = nullptr;
 
                struct NewFrame {
                        RefCountedFrame frame;
@@ -460,6 +467,11 @@ private:
 
        InputState input_state;
 
+       // Cards we have been noticed about being hotplugged, but haven't tried adding yet.
+       // Protected by its own mutex.
+       std::mutex hotplug_mutex;
+       std::vector<libusb_device *> hotplugged_cards;
+
        class OutputChannel {
        public:
                ~OutputChannel();
@@ -541,5 +553,6 @@ private:
 };
 
 extern Mixer *global_mixer;
+extern bool uses_mlock;
 
 #endif  // !defined(_MIXER_H)