Rearrange encoder threading.

Soon we'll add a new encoder type, and the existing structure was
already creaking a bit at the seams while handling local and remote
encodes.  Here we split out an encoder thread and introduce the concept
of a "sync" thread (which blocks while the encoding is happening).
Later we'll have another type which submits the encode request to a
GPU and receives the reply back later.

1 files changed, 32 insertions, 0 deletions

diff --git a/src/lib/j2k_sync_encoder_thread.h b/src/lib/j2k_sync_encoder_thread.h
new file mode 100644
index 000000000..45222279e
--- /dev/null
+++ b/src/lib/j2k_sync_encoder_thread.h
@@ -0,0 +1,32 @@
+#ifndef DCPOMATIC_J2K_SYNC_ENCODER_THREAD_H
+#define DCPOMATIC_J2K_SYNC_ENCODER_THREAD_H
+
+
+#include "exception_store.h"
+#include "j2k_encoder_thread.h"
+#include <dcp/array_data.h>
+#include <boost/thread.hpp>
+
+
+class DCPVideo;
+class J2KEncoder;
+
+
+class J2KSyncEncoderThread : public J2KEncoderThread, public ExceptionStore
+{
+public:
+	J2KSyncEncoderThread(J2KEncoder& encoder);
+
+	J2KSyncEncoderThread(J2KSyncEncoderThread const&) = delete;
+	J2KSyncEncoderThread& operator=(J2KSyncEncoderThread const&) = delete;
+
+	virtual ~J2KSyncEncoderThread() {}
+
+	void run() override;
+
+	virtual void log_thread_start() const = 0;
+	virtual std::shared_ptr<dcp::ArrayData> encode(DCPVideo const& frame) = 0;
+};
+
+
+#endif