X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fmixer.h;h=e382f7755ed31f642513118c8a2b41dbf6c6756e;hb=ecaec75dd52d076ba53cafa1fed716ebc0d93da6;hp=1852e48ed8196fa79938a5d4527e9e55f7f7a14a;hpb=5a34f92eb0bf5fe911cb6ca72a18ad03ce9898ac;p=nageru

diff --git a/nageru/mixer.h b/nageru/mixer.h
index 1852e48..e382f77 100644
--- a/nageru/mixer.h
+++ b/nageru/mixer.h
@@ -29,6 +29,7 @@
 #include "audio_mixer.h"
 #include "bmusb/bmusb.h"
 #include "defs.h"
+#include "ffmpeg_capture.h"
 #include "shared/httpd.h"
 #include "input_state.h"
 #include "libusb.h"
@@ -158,7 +159,7 @@ private:
 class Mixer {
 public:
 	// The surface format is used for offscreen destinations for OpenGL contexts we need.
-	Mixer(const QSurfaceFormat &format, unsigned num_cards);
+	Mixer(const QSurfaceFormat &format);
 	~Mixer();
 	void start();
 	void quit();
@@ -303,10 +304,8 @@ public:
 		should_cut = true;
 	}
 
-	unsigned get_num_cards() const { return num_cards; }
-
 	std::string get_card_description(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_description();
 	}
 
@@ -316,7 +315,7 @@ public:
 	// the card's actual name.
 	std::string get_output_card_description(unsigned card_index) const {
 		assert(card_can_be_used_as_output(card_index));
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		if (cards[card_index].parked_capture) {
 			return cards[card_index].parked_capture->get_description();
 		} else {
@@ -325,65 +324,87 @@ public:
 	}
 
 	bool card_can_be_used_as_output(unsigned card_index) const {
-		assert(card_index < num_cards);
-		return cards[card_index].output != nullptr;
+		assert(card_index < MAX_VIDEO_CARDS);
+		return cards[card_index].output != nullptr && cards[card_index].capture != nullptr;
+	}
+
+	bool card_is_cef(unsigned card_index) const {
+		assert(card_index < MAX_VIDEO_CARDS);
+		return cards[card_index].type == CardType::CEF_INPUT;
 	}
 
 	bool card_is_ffmpeg(unsigned card_index) const {
-		assert(card_index < num_cards + num_video_inputs);
-		if (card_index < num_cards) {
-			// SRT inputs are more like regular inputs than FFmpeg inputs,
-			// so show them as such. (This allows the user to right-click
-			// to select a different input.)
+		assert(card_index < MAX_VIDEO_CARDS);
+		if (cards[card_index].type != CardType::FFMPEG_INPUT) {
 			return false;
 		}
-		return cards[card_index].type == CardType::FFMPEG_INPUT;
+#ifdef HAVE_SRT
+		// SRT inputs are more like regular inputs than FFmpeg inputs,
+		// so show them as such. (This allows the user to right-click
+		// to select a different input.)
+		return static_cast<FFmpegCapture *>(cards[card_index].capture.get())->get_srt_sock() == -1;
+#else
+		return true;
+#endif
+	}
+
+	bool card_is_active(unsigned card_index) const {
+		assert(card_index < MAX_VIDEO_CARDS);
+		std::lock_guard<std::mutex> lock(card_mutex);
+		return cards[card_index].capture != nullptr;
+	}
+
+	void force_card_active(unsigned card_index)
+	{
+		// handle_hotplugged_cards() will pick this up.
+		std::lock_guard<std::mutex> lock(card_mutex);
+		cards[card_index].force_active = true;
 	}
 
 	std::map<uint32_t, bmusb::VideoMode> get_available_video_modes(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_available_video_modes();
 	}
 
 	uint32_t get_current_video_mode(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_current_video_mode();
 	}
 
 	void set_video_mode(unsigned card_index, uint32_t mode) {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		cards[card_index].capture->set_video_mode(mode);
 	}
 
 	void start_mode_scanning(unsigned card_index);
 
 	std::map<uint32_t, std::string> get_available_video_inputs(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_available_video_inputs();
 	}
 
 	uint32_t get_current_video_input(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_current_video_input();
 	}
 
 	void set_video_input(unsigned card_index, uint32_t input) {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		cards[card_index].capture->set_video_input(input);
 	}
 
 	std::map<uint32_t, std::string> get_available_audio_inputs(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_available_audio_inputs();
 	}
 
 	uint32_t get_current_audio_input(unsigned card_index) const {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		return cards[card_index].capture->get_current_audio_input();
 	}
 
 	void set_audio_input(unsigned card_index, uint32_t input) {
-		assert(card_index < num_cards);
+		assert(card_index < MAX_VIDEO_CARDS);
 		cards[card_index].capture->set_audio_input(input);
 	}
 
@@ -439,13 +460,7 @@ public:
 private:
 	struct CaptureCard;
 
-	enum class CardType {
-		LIVE_CARD,
-		FAKE_CAPTURE,
-		FFMPEG_INPUT,
-		CEF_INPUT,
-	};
-	void configure_card(unsigned card_index, bmusb::CaptureInterface *capture, CardType card_type, DeckLinkOutput *output, bool is_srt_card = false);
+	void configure_card(unsigned card_index, bmusb::CaptureInterface *capture, CardType card_type, DeckLinkOutput *output, bool is_srt_card);
 	void set_output_card_internal(int card_index);  // Should only be called from the mixer thread.
 	void bm_frame(unsigned card_index, uint16_t timecode,
 		bmusb::FrameAllocator::Frame video_frame, size_t video_offset, bmusb::VideoFormat video_format,
@@ -473,7 +488,7 @@ private:
 	std::pair<std::string, std::string> get_channel_color_http(unsigned channel_idx);
 
 	HTTPD httpd;
-	unsigned num_cards, num_video_inputs, num_html_inputs = 0;
+	unsigned num_video_inputs, num_html_inputs = 0;
 
 	QSurface *mixer_surface, *h264_encoder_surface, *decklink_output_surface, *image_update_surface;
 	std::unique_ptr<movit::ResourcePool> resource_pool;
@@ -521,7 +536,12 @@ private:
 	mutable std::mutex card_mutex;
 	bool has_bmusb_thread = false;
 	struct CaptureCard {
+		// If nullptr, the card is inactive, and will be hidden in the UI.
+		// Only fake capture cards can be inactive.
 		std::unique_ptr<bmusb::CaptureInterface> capture;
+		// If true, card must always be active (typically because it's one of the
+		// first cards, or because the theme has explicitly asked for it).
+		bool force_active = false;
 		bool is_fake_capture;
 		// If is_fake_capture is true, contains a monotonic timer value for when
 		// it was last changed. Otherwise undefined. Used for SRT re-plugging.
@@ -660,6 +680,9 @@ private:
 	void update_srt_stats(int srt_sock, Mixer::CaptureCard *card);
 #endif
 
+	std::string description_for_card(unsigned card_index);
+	static bool is_srt_card(const CaptureCard *card);
+
 	InputState input_state;
 
 	// Cards we have been noticed about being hotplugged, but haven't tried adding yet.