From 4e244c8a4b34268445123b7d6df54ff303561fa5 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Sun, 6 Jul 2025 23:23:26 +0200
Subject: Allow audio processors to pass through HI/VI/DBox etc (#3020).

Previously you couldn't map these things if you were using a processor.
---
 src/lib/audio_processor.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/lib/audio_processor.h')

diff --git a/src/lib/audio_processor.h b/src/lib/audio_processor.h
index 2c3df3add..f469f07c0 100644
--- a/src/lib/audio_processor.h
+++ b/src/lib/audio_processor.h
@@ -29,6 +29,7 @@
 
 
 #include "named_channel.h"
+#include <dcp/types.h>
 #include <memory>
 #include <string>
 #include <vector>
@@ -58,7 +59,7 @@ public:
 	/** @return A clone of this AudioProcessor for operation at the specified sampling rate */
 	virtual std::shared_ptr<AudioProcessor> clone(int sampling_rate) const = 0;
 	/** Process some data, returning the processed result truncated or padded to `channels' */
-	virtual std::shared_ptr<AudioBuffers> run(std::shared_ptr<const AudioBuffers>, int channels) = 0;
+	std::shared_ptr<AudioBuffers> run(std::shared_ptr<const AudioBuffers>, int channels);
 	virtual void flush() {}
 	/** Make the supplied audio mapping into a sensible default for this processor */
 	virtual void make_audio_mapping_default(AudioMapping& mapping) const = 0;
@@ -69,6 +70,10 @@ public:
 	static std::vector<AudioProcessor const *> visible();
 	static void setup_audio_processors();
 	static AudioProcessor const * from_id(std::string);
+	static std::vector<dcp::Channel> pass_through();
+
+protected:
+	virtual std::shared_ptr<AudioBuffers> do_run(std::shared_ptr<const AudioBuffers>, int channels) = 0;
 
 private:
 	static std::vector<std::unique_ptr<const AudioProcessor>> _experimental;
-- 
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