#include <thread>
#include <vector>
+struct libusb_device_handle;
struct libusb_transfer;
// An interface for frame allocators; if you do not specify one
virtual uint32_t get_current_video_mode() const = 0;
virtual void set_video_mode(uint32_t video_mode_id) = 0;
+ virtual std::map<uint32_t, std::string> get_available_video_inputs() const = 0;
+ virtual void set_video_input(uint32_t video_input_id) = 0;
+ virtual uint32_t get_current_video_input() const = 0;
+
+ virtual std::map<uint32_t, std::string> get_available_audio_inputs() const = 0;
+ virtual void set_audio_input(uint32_t audio_input_id) = 0;
+ virtual uint32_t get_current_audio_input() const = 0;
+
// Does not take ownership.
virtual void set_video_frame_allocator(FrameAllocator *allocator) = 0;
uint32_t get_current_video_mode() const override;
void set_video_mode(uint32_t video_mode_id) override;
+ virtual std::map<uint32_t, std::string> get_available_video_inputs() const override;
+ virtual void set_video_input(uint32_t video_input_id) override;
+ virtual uint32_t get_current_video_input() const override { return current_video_input; }
+
+ virtual std::map<uint32_t, std::string> get_available_audio_inputs() const override;
+ virtual void set_audio_input(uint32_t audio_input_id) override;
+ virtual uint32_t get_current_audio_input() const override { return current_audio_input; }
+
// Does not take ownership.
void set_video_frame_allocator(FrameAllocator *allocator) override
{
video_frame_allocator = allocator;
+ if (owned_video_frame_allocator.get() != allocator) {
+ owned_video_frame_allocator.reset();
+ }
}
FrameAllocator *get_video_frame_allocator() override
void set_audio_frame_allocator(FrameAllocator *allocator) override
{
audio_frame_allocator = allocator;
+ if (owned_audio_frame_allocator.get() != allocator) {
+ owned_audio_frame_allocator.reset();
+ }
}
FrameAllocator *get_audio_frame_allocator() override
static void usb_thread_func();
static void cb_xfr(struct libusb_transfer *xfr);
+ void update_capture_mode();
+
std::string description;
FrameAllocator::Frame current_video_frame;
FrameAllocator *video_frame_allocator = nullptr;
FrameAllocator *audio_frame_allocator = nullptr;
+ std::unique_ptr<FrameAllocator> owned_video_frame_allocator;
+ std::unique_ptr<FrameAllocator> owned_audio_frame_allocator;
frame_callback_t frame_callback = nullptr;
std::thread dequeue_thread;
int card_index;
std::vector<libusb_transfer *> iso_xfrs;
int assumed_frame_width = 1280;
+
+ libusb_device_handle *devh = nullptr;
+ uint32_t current_video_input = 0x00000000; // HDMI/SDI.
+ uint32_t current_audio_input = 0x00000000; // Embedded.
};
// Get details for the given video format; returns false if detection was incomplete.