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, 46 insertions, 0 deletions

diff --git a/src/lib/grok_j2k_encoder_thread.cc b/src/lib/grok_j2k_encoder_thread.cc
new file mode 100644
index 000000000..8d0dee5a9
--- /dev/null
+++ b/src/lib/grok_j2k_encoder_thread.cc
@@ -0,0 +1,46 @@
+#include "cross.h"
+#include "dcpomatic_log.h"
+#include "dcp_video.h"
+#include "grok_j2k_encoder_thread.h"
+#include "j2k_encoder.h"
+#include "scope_guard.h"
+#include "util.h"
+
+#include "i18n.h"
+
+
+using std::make_shared;
+using std::shared_ptr;
+
+
+GrokJ2KEncoderThread::GrokJ2KEncoderThread(J2KEncoder& encoder, grk_plugin::GrokContext* context)
+	: J2KEncoderThread(encoder)
+	, _context(context)
+{
+
+}
+
+
+void
+GrokJ2KEncoderThread::run()
+try
+{
+	while (true)
+	{
+		LOG_TIMING("encoder-sleep thread=%1", thread_id());
+		auto frame = _encoder.pop();
+
+		ScopeGuard frame_guard([this, &frame]() {
+			_encoder.retry(frame);
+		});
+
+		LOG_TIMING("encoder-pop thread=%1 frame=%2 eyes=%3", thread_id(), frame.index(), static_cast<int>(frame.eyes()));
+
+		if (_context->launch(frame, Config::instance()->selected_gpu()) && _context->scheduleCompress(frame)) {
+			frame_guard.cancel();
+		}
+	}
+} catch (boost::thread_interrupted& e) {
+} catch (...) {
+	store_current();
+}