decoded_video_format->frame_rate_den = 1;
return false;
}
+
+vector<VideoMode> BMUSBCapture::get_available_video_modes() const
+{
+ // The USB3 cards autodetect, and seem to have no provision for forcing modes.
+ VideoMode auto_mode;
+ auto_mode.id = 0;
+ auto_mode.name = "Autodetect";
+ auto_mode.autodetect = true;
+ return { auto_mode };
+}
+
+void BMUSBCapture::set_video_mode(uint32_t video_mode_id)
+{
+ assert(video_mode_id == 0); // Matches get_available_video_modes().
+}
std::stack<std::unique_ptr<uint8_t[]>> freelist; // All of size <frame_size>.
};
+// Represents an input mode you can tune a card to.
+struct VideoMode {
+ uint32_t id = 0;
+ std::string name;
+ bool autodetect = false; // If true, all the remaining fields are irrelevant.
+ unsigned width = 0, height = 0;
+ unsigned frame_rate_num = 0, frame_rate_den = 0;
+ bool interlaced = false;
+};
+
+// Represents the format of an actual frame coming in.
struct VideoFormat {
uint16_t id = 0; // For debugging/logging only.
unsigned width = 0, height = 0, second_field_start = 0;
public:
virtual ~CaptureInterface() {}
+ virtual std::vector<VideoMode> get_available_video_modes() const = 0;
+
+ virtual void set_video_mode(uint32_t video_mode_id) = 0;
+
// Does not take ownership.
virtual void set_video_frame_allocator(FrameAllocator *allocator) = 0;
~BMUSBCapture() {}
+ std::vector<VideoMode> get_available_video_modes() const override;
+
+ void set_video_mode(uint32_t video_mode_id) override;
+
// Does not take ownership.
void set_video_frame_allocator(FrameAllocator *allocator) override
{