[libcamera-devel,RFC,3/3] libcamera: pipeline: simple: add software converter support
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Message ID 20230910175027.23384-4-andrey.konovalov@linaro.org
State New
Headers show
Series
  • libcamera: converter: generalize Converter to remove MediaDevice dependency
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Commit Message

Andrey Konovalov Sept. 10, 2023, 5:50 p.m. UTC 
Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
---
 src/libcamera/pipeline/simple/simple.cpp | 34 +++++++++++++++++-------
 1 file changed, 25 insertions(+), 9 deletions(-)

Patch
diff mbox series 

diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
index f0622a74..ee9b672c 100644
--- a/src/libcamera/pipeline/simple/simple.cpp
+++ b/src/libcamera/pipeline/simple/simple.cpp
@@ -37,6 +37,7 @@ 
 #include "libcamera/internal/v4l2_subdevice.h"
 #include "libcamera/internal/v4l2_videodevice.h"
 
+#include "libcamera/internal/converter/converter_softw.h"
 
 namespace libcamera {
 
@@ -185,17 +186,21 @@  struct SimplePipelineInfo {
 	 * and the number of streams it supports.
 	 */
 	std::vector<std::pair<const char *, unsigned int>> converters;
+	/*
+	 * Nonzero value enables creating software converter
+	 */
+	bool enable_sw_converter;
 };
 
 namespace {
 
 static const SimplePipelineInfo supportedDevices[] = {
-	{ "dcmipp", {} },
-	{ "imx7-csi", { { "pxp", 1 } } },
-	{ "j721e-csi2rx", {} },
-	{ "mxc-isi", {} },
-	{ "qcom-camss", {} },
-	{ "sun6i-csi", {} },
+	{ "dcmipp", {}, false },
+	{ "imx7-csi", { { "pxp", 1 } }, false },
+	{ "j721e-csi2rx", {}, false },
+	{ "mxc-isi", {}, false },
+	{ "qcom-camss", {}, true },
+	{ "sun6i-csi", {}, false },
 };
 
 } /* namespace */
@@ -331,6 +336,7 @@  public:
 	V4L2VideoDevice *video(const MediaEntity *entity);
 	V4L2Subdevice *subdev(const MediaEntity *entity);
 	MediaDevice *converter() { return converter_; }
+	bool sw_converter_enabled() { return enable_sw_converter_; }
 
 protected:
 	int queueRequestDevice(Camera *camera, Request *request) override;
@@ -359,6 +365,8 @@  private:
 	std::map<const MediaEntity *, EntityData> entities_;
 
 	MediaDevice *converter_;
+
+	bool enable_sw_converter_;
 };
 
 /* -----------------------------------------------------------------------------
@@ -495,6 +503,7 @@  int SimpleCameraData::init()
 	int ret;
 
 	/* Open the converter, if any. */
+	converter_ = nullptr;
 	MediaDevice *converter = pipe->converter();
 	if (converter) {
 		converter_ = ConverterMDFactoryBase::create(converter);
@@ -502,11 +511,16 @@  int SimpleCameraData::init()
 			LOG(SimplePipeline, Warning)
 				<< "Failed to create converter, disabling format conversion";
 			converter_.reset();
-		} else {
-			converter_->inputBufferReady.connect(this, &SimpleCameraData::converterInputDone);
-			converter_->outputBufferReady.connect(this, &SimpleCameraData::converterOutputDone);
 		}
 	}
+	/* Don't create sw converter if media device converter is created. */
+	if (!converter_ && pipe->sw_converter_enabled()) {
+		converter_ = std::make_unique<SwConverter>();
+	}
+	if (converter_) {
+		converter_->inputBufferReady.connect(this, &SimpleCameraData::converterInputDone);
+		converter_->outputBufferReady.connect(this, &SimpleCameraData::converterOutputDone);
+	}
 
 	video_ = pipe->video(entities_.back().entity);
 	ASSERT(video_);
@@ -1418,6 +1432,8 @@  bool SimplePipelineHandler::match(DeviceEnumerator *enumerator)
 		}
 	}
 
+	enable_sw_converter_ = info->enable_sw_converter;
+
 	/* Locate the sensors. */
 	std::vector<MediaEntity *> sensors = locateSensors();
 	if (sensors.empty()) {