Move everything into a separate futatabi/ subdir, for the upcoming merge with Futatabi.

[nageru] / nageru / decklink_capture.h

diff --git a/nageru/decklink_capture.h b/nageru/decklink_capture.h
new file mode 100644 (file)
index 0000000..f940241
--- /dev/null
+++ b/nageru/decklink_capture.h
@@ -0,0 +1,153 @@
+#ifndef _DECKLINK_CAPTURE_H
+#define _DECKLINK_CAPTURE_H 1
+
+#include <DeckLinkAPI.h>
+#include <stdint.h>
+#include <atomic>
+#include <functional>
+#include <map>
+#include <memory>
+#include <set>
+#include <string>
+
+#include "DeckLinkAPIModes.h"
+#include "DeckLinkAPITypes.h"
+#include "LinuxCOM.h"
+#include "bmusb/bmusb.h"
+
+class IDeckLink;
+class IDeckLinkConfiguration;
+
+// TODO: Adjust CaptureInterface to be a little less bmusb-centric.
+// There are too many member functions here that don't really do anything.
+class DeckLinkCapture : public bmusb::CaptureInterface, IDeckLinkInputCallback
+{
+public:
+       DeckLinkCapture(IDeckLink *card, int card_index);  // Takes ownership of <card>.
+       ~DeckLinkCapture();
+
+       // IDeckLinkInputCallback.
+       HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *) override;
+       ULONG STDMETHODCALLTYPE AddRef() override;
+       ULONG STDMETHODCALLTYPE Release() override;
+       HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(
+               BMDVideoInputFormatChangedEvents,
+               IDeckLinkDisplayMode*,
+               BMDDetectedVideoInputFormatFlags) override;
+       HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(
+               IDeckLinkVideoInputFrame *video_frame,
+               IDeckLinkAudioInputPacket *audio_frame) override;
+
+       // CaptureInterface.
+       void set_video_frame_allocator(bmusb::FrameAllocator *allocator) override
+       {
+               video_frame_allocator = allocator;
+               if (owned_video_frame_allocator.get() != allocator) {
+                       owned_video_frame_allocator.reset();
+               }
+       }
+
+       bmusb::FrameAllocator *get_video_frame_allocator() override
+       {
+               return video_frame_allocator;
+       }
+
+       // Does not take ownership.
+       void set_audio_frame_allocator(bmusb::FrameAllocator *allocator) override
+       {
+               audio_frame_allocator = allocator;
+               if (owned_audio_frame_allocator.get() != allocator) {
+                       owned_audio_frame_allocator.reset();
+               }
+       }
+
+       bmusb::FrameAllocator *get_audio_frame_allocator() override
+       {
+               return audio_frame_allocator;
+       }
+
+       void set_frame_callback(bmusb::frame_callback_t callback) override
+       {
+               frame_callback = callback;
+       }
+
+       void set_dequeue_thread_callbacks(std::function<void()> init, std::function<void()> cleanup) override
+       {
+               dequeue_init_callback = init;
+               dequeue_cleanup_callback = cleanup;
+               has_dequeue_callbacks = true;
+       }
+
+       std::string get_description() const override
+       {
+               return description;
+       }
+
+       void configure_card() override;
+       void start_bm_capture() override;
+       void stop_dequeue_thread() override;
+
+       // TODO: Can the API communicate this to us somehow, for e.g. Thunderbolt cards?
+       bool get_disconnected() const override { return false; }
+
+       std::map<uint32_t, bmusb::VideoMode> get_available_video_modes() const override { return video_modes; }
+       void set_video_mode(uint32_t video_mode_id) override;
+       uint32_t get_current_video_mode() const override { return current_video_mode; }
+
+       std::set<bmusb::PixelFormat> get_available_pixel_formats() const override {
+               return std::set<bmusb::PixelFormat>{ bmusb::PixelFormat_8BitYCbCr, bmusb::PixelFormat_10BitYCbCr };
+       }
+       void set_pixel_format(bmusb::PixelFormat pixel_format) override;
+       bmusb::PixelFormat get_current_pixel_format() const override {
+               return current_pixel_format;
+       }
+
+       std::map<uint32_t, std::string> get_available_video_inputs() const override { return video_inputs; }
+       void set_video_input(uint32_t video_input_id) override;
+       uint32_t get_current_video_input() const override { return current_video_input; }
+
+       std::map<uint32_t, std::string> get_available_audio_inputs() const override { return audio_inputs; }
+       void set_audio_input(uint32_t audio_input_id) override;
+       uint32_t get_current_audio_input() const override { return current_audio_input; }
+
+private:
+       void set_video_mode_no_restart(uint32_t video_mode_id);
+
+       std::atomic<int> refcount{1};
+       bool done_init = false;
+       std::string description;
+       uint16_t timecode = 0;
+       int card_index;
+
+       bool has_dequeue_callbacks = false;
+       std::function<void()> dequeue_init_callback = nullptr;
+       std::function<void()> dequeue_cleanup_callback = nullptr;
+
+       bmusb::FrameAllocator *video_frame_allocator = nullptr;
+       bmusb::FrameAllocator *audio_frame_allocator = nullptr;
+       std::unique_ptr<bmusb::FrameAllocator> owned_video_frame_allocator;
+       std::unique_ptr<bmusb::FrameAllocator> owned_audio_frame_allocator;
+       bmusb::frame_callback_t frame_callback = nullptr;
+
+       IDeckLinkConfiguration *config = nullptr;
+
+       IDeckLink *card = nullptr;
+       IDeckLinkInput *input = nullptr;
+       BMDTimeValue frame_duration;
+       BMDTimeScale time_scale;
+       BMDFieldDominance field_dominance;
+       bool running = false;
+       bool supports_autodetect = false;
+
+       std::map<uint32_t, bmusb::VideoMode> video_modes;
+       BMDDisplayMode current_video_mode;
+       bmusb::PixelFormat current_pixel_format = bmusb::PixelFormat_8BitYCbCr;
+
+       std::map<uint32_t, std::string> video_inputs;
+       BMDVideoConnection current_video_input;
+
+       std::map<uint32_t, std::string> audio_inputs;
+       BMDAudioConnection current_audio_input;
+};
+
+#endif  // !defined(_DECKLINK_CAPTURE_H)