Support arbitrary SBS zooming (ie., zooming in on the little picture, too).

[nageru] / bmusb.h

diff --git a/bmusb.h b/bmusb.h
index c8817480833a55657fc177cd5dd255a9c538ea59..96a2257f8549279dc0000c7b31dfb2df8709e62a 100644 (file)
--- a/bmusb.h
+++ b/bmusb.h
@@ -8,6 +8,9 @@
 #include <functional>
 #include <mutex>
 #include <thread>
+#include <vector>
+
+struct libusb_transfer;
 
 // An interface for frame allocators; if you do not specify one
 // (using set_video_frame_allocator), a default one that pre-allocates
@@ -92,8 +95,17 @@ class BMUSBCapture {
                frame_callback = callback;
        }
 
+       // Needs to be run before configure_card().
+       void set_dequeue_thread_callbacks(std::function<void()> init, std::function<void()> cleanup)
+       {
+               dequeue_init_callback = init;
+               dequeue_cleanup_callback = cleanup;
+               has_dequeue_callbacks = true;
+       }
+
        void configure_card();
        void start_bm_capture();
+       void stop_dequeue_thread();
 
        static void start_bm_thread();
        static void stop_bm_thread();
@@ -109,7 +121,7 @@ class BMUSBCapture {
        void start_new_frame(const uint8_t *start);
 
        void queue_frame(uint16_t format, uint16_t timecode, FrameAllocator::Frame frame, std::deque<QueuedFrame> *q);
-       void dequeue_thread();
+       void dequeue_thread_func();
 
        static void usb_thread_func();
        static void cb_xfr(struct libusb_transfer *xfr);
@@ -126,6 +138,12 @@ class BMUSBCapture {
        FrameAllocator *audio_frame_allocator = nullptr;
        frame_callback_t frame_callback = nullptr;
 
+       std::thread dequeue_thread;
+       std::atomic<bool> dequeue_thread_should_quit;
+       bool has_dequeue_callbacks = false;
+       std::function<void()> dequeue_init_callback = nullptr;
+       std::function<void()> dequeue_cleanup_callback = nullptr;
+
        int current_register = 0;
 
        static constexpr int NUM_BMUSB_REGISTERS = 60;