[libcamera-devel,24/30] cam: Move printing of camera information to CameraSession class
diff mbox series

Message ID 20210707021941.20804-25-laurent.pinchart@ideasonboard.com
State Superseded
Headers show
Series
  • Multi-camera support in the cam application
Related show

Commit Message

Laurent Pinchart July 7, 2021, 2:19 a.m. UTC
The three CamApp functions listControls(), listProperties() and
infoConfiguration() operate on a camera. They would thus be better
placed in the CameraSession class. Move them there. As they now have no
error to return anymore, make them void functions.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/cam/camera_session.cpp |  45 +++++++++++++++++
 src/cam/camera_session.h   |   4 ++
 src/cam/main.cpp           | 101 ++++++++-----------------------------
 3 files changed, 70 insertions(+), 80 deletions(-)

Comments

Kieran Bingham July 12, 2021, 3:56 p.m. UTC | #1
On 07/07/2021 03:19, Laurent Pinchart wrote:
> The three CamApp functions listControls(), listProperties() and
> infoConfiguration() operate on a camera. They would thus be better
> placed in the CameraSession class. Move them there. As they now have no
> error to return anymore, make them void functions.

Makes me wonder if the arg parsing for those shouldn't be handled by the
CameraSession - but I don't know if that's practical, and this is fine.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---
>  src/cam/camera_session.cpp |  45 +++++++++++++++++
>  src/cam/camera_session.h   |   4 ++
>  src/cam/main.cpp           | 101 ++++++++-----------------------------
>  3 files changed, 70 insertions(+), 80 deletions(-)
> 
> diff --git a/src/cam/camera_session.cpp b/src/cam/camera_session.cpp
> index 10e66446ee67..ceb2c3ab3a92 100644
> --- a/src/cam/camera_session.cpp
> +++ b/src/cam/camera_session.cpp
> @@ -11,6 +11,7 @@
>  #include <sstream>
>  
>  #include <libcamera/control_ids.h>
> +#include <libcamera/property_ids.h>
>  
>  #include "camera_session.h"
>  #include "event_loop.h"
> @@ -89,6 +90,50 @@ CameraSession::~CameraSession()
>  		camera_->release();
>  }
>  
> +void CameraSession::listControls() const
> +{
> +	for (const auto &ctrl : camera_->controls()) {
> +		const ControlId *id = ctrl.first;
> +		const ControlInfo &info = ctrl.second;
> +
> +		std::cout << "Control: " << id->name() << ": "
> +			  << info.toString() << std::endl;
> +	}
> +}
> +
> +void CameraSession::listProperties() const
> +{
> +	for (const auto &prop : camera_->properties()) {
> +		const ControlId *id = properties::properties.at(prop.first);
> +		const ControlValue &value = prop.second;
> +
> +		std::cout << "Property: " << id->name() << " = "
> +			  << value.toString() << std::endl;
> +	}
> +}
> +
> +void CameraSession::infoConfiguration() const
> +{
> +	unsigned int index = 0;
> +	for (const StreamConfiguration &cfg : *config_) {
> +		std::cout << index << ": " << cfg.toString() << std::endl;
> +
> +		const StreamFormats &formats = cfg.formats();
> +		for (PixelFormat pixelformat : formats.pixelformats()) {
> +			std::cout << " * Pixelformat: "
> +				  << pixelformat.toString() << " "
> +				  << formats.range(pixelformat).toString()
> +				  << std::endl;
> +
> +			for (const Size &size : formats.sizes(pixelformat))
> +				std::cout << "  - " << size.toString()
> +					  << std::endl;
> +		}
> +
> +		index++;
> +	}
> +}
> +
>  int CameraSession::start(const OptionsParser::Options &options)
>  {
>  	int ret;
> diff --git a/src/cam/camera_session.h b/src/cam/camera_session.h
> index 88baf9061629..6221aadadf90 100644
> --- a/src/cam/camera_session.h
> +++ b/src/cam/camera_session.h
> @@ -35,6 +35,10 @@ public:
>  	libcamera::Camera *camera() { return camera_.get(); }
>  	libcamera::CameraConfiguration *config() { return config_.get(); }
>  
> +	void listControls() const;
> +	void listProperties() const;
> +	void infoConfiguration() const;
> +
>  	int start(const OptionsParser::Options &options);
>  	void stop();
>  
> diff --git a/src/cam/main.cpp b/src/cam/main.cpp
> index cba0793ac39b..4fe0c4c368d1 100644
> --- a/src/cam/main.cpp
> +++ b/src/cam/main.cpp
> @@ -39,9 +39,6 @@ private:
>  	void cameraRemoved(std::shared_ptr<Camera> cam);
>  	void captureDone();
>  	int parseOptions(int argc, char *argv[]);
> -	int listControls();
> -	int listProperties();
> -	int infoConfiguration();
>  	int run();
>  
>  	static std::string cameraName(const Camera *camera);
> @@ -158,74 +155,6 @@ int CamApp::parseOptions(int argc, char *argv[])
>  	return 0;
>  }
>  
> -int CamApp::listControls()
> -{
> -	if (!session_) {
> -		std::cout << "Cannot list controls without a camera"
> -			  << std::endl;
> -		return -EINVAL;
> -	}
> -
> -	for (const auto &ctrl : session_->camera()->controls()) {
> -		const ControlId *id = ctrl.first;
> -		const ControlInfo &info = ctrl.second;
> -
> -		std::cout << "Control: " << id->name() << ": "
> -			  << info.toString() << std::endl;
> -	}
> -
> -	return 0;
> -}
> -
> -int CamApp::listProperties()
> -{
> -	if (!session_) {
> -		std::cout << "Cannot list properties without a camera"
> -			  << std::endl;
> -		return -EINVAL;
> -	}
> -
> -	for (const auto &prop : session_->camera()->properties()) {
> -		const ControlId *id = properties::properties.at(prop.first);
> -		const ControlValue &value = prop.second;
> -
> -		std::cout << "Property: " << id->name() << " = "
> -			  << value.toString() << std::endl;
> -	}
> -
> -	return 0;
> -}
> -
> -int CamApp::infoConfiguration()
> -{
> -	if (!session_) {
> -		std::cout << "Cannot print stream information without a camera"
> -			  << std::endl;
> -		return -EINVAL;
> -	}
> -
> -	unsigned int index = 0;
> -	for (const StreamConfiguration &cfg : *session_->config()) {
> -		std::cout << index << ": " << cfg.toString() << std::endl;
> -
> -		const StreamFormats &formats = cfg.formats();
> -		for (PixelFormat pixelformat : formats.pixelformats()) {
> -			std::cout << " * Pixelformat: "
> -				  << pixelformat.toString() << " "
> -				  << formats.range(pixelformat).toString()
> -				  << std::endl;
> -
> -			for (const Size &size : formats.sizes(pixelformat))
> -				std::cout << "  - " << size.toString()
> -					  << std::endl;
> -		}
> -
> -		index++;
> -	}
> -
> -	return 0;
> -}
> -
>  void CamApp::cameraAdded(std::shared_ptr<Camera> cam)
>  {
>  	std::cout << "Camera Added: " << cam->id() << std::endl;
> @@ -269,21 +198,33 @@ int CamApp::run()
>  	}
>  
>  	if (options_.isSet(OptListControls)) {
> -		ret = listControls();
> -		if (ret)
> -			return ret;
> +		if (!session_) {
> +			std::cout << "Cannot list controls without a camera"
> +				  << std::endl;
> +			return -EINVAL;
> +		}
> +
> +		session_->listControls();
>  	}
>  
>  	if (options_.isSet(OptListProperties)) {
> -		ret = listProperties();
> -		if (ret)
> -			return ret;
> +		if (!session_) {
> +			std::cout << "Cannot list properties without a camera"
> +				  << std::endl;
> +			return -EINVAL;
> +		}
> +
> +		session_->listProperties();
>  	}
>  
>  	if (options_.isSet(OptInfo)) {
> -		ret = infoConfiguration();
> -		if (ret)
> -			return ret;
> +		if (!session_) {
> +			std::cout << "Cannot print stream information without a camera"
> +				  << std::endl;
> +			return -EINVAL;
> +		}
> +
> +		session_->infoConfiguration();
>  	}
>  
>  	if (options_.isSet(OptCapture)) {
>
Laurent Pinchart July 12, 2021, 6:47 p.m. UTC | #2
Hi Kieran,

On Mon, Jul 12, 2021 at 04:56:34PM +0100, Kieran Bingham wrote:
> On 07/07/2021 03:19, Laurent Pinchart wrote:
> > The three CamApp functions listControls(), listProperties() and
> > infoConfiguration() operate on a camera. They would thus be better
> > placed in the CameraSession class. Move them there. As they now have no
> > error to return anymore, make them void functions.
> 
> Makes me wonder if the arg parsing for those shouldn't be handled by the
> CameraSession - but I don't know if that's practical, and this is fine.

I've thought about it, but then decided that a function named
listControls() should list controls unconditionally. I've actually
thought about moving arg parsing (or rather interpretation) out of
CameraSession for other arguments, but that became quite impractical.

> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> 
> > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > ---
> >  src/cam/camera_session.cpp |  45 +++++++++++++++++
> >  src/cam/camera_session.h   |   4 ++
> >  src/cam/main.cpp           | 101 ++++++++-----------------------------
> >  3 files changed, 70 insertions(+), 80 deletions(-)
> > 
> > diff --git a/src/cam/camera_session.cpp b/src/cam/camera_session.cpp
> > index 10e66446ee67..ceb2c3ab3a92 100644
> > --- a/src/cam/camera_session.cpp
> > +++ b/src/cam/camera_session.cpp
> > @@ -11,6 +11,7 @@
> >  #include <sstream>
> >  
> >  #include <libcamera/control_ids.h>
> > +#include <libcamera/property_ids.h>
> >  
> >  #include "camera_session.h"
> >  #include "event_loop.h"
> > @@ -89,6 +90,50 @@ CameraSession::~CameraSession()
> >  		camera_->release();
> >  }
> >  
> > +void CameraSession::listControls() const
> > +{
> > +	for (const auto &ctrl : camera_->controls()) {
> > +		const ControlId *id = ctrl.first;
> > +		const ControlInfo &info = ctrl.second;
> > +
> > +		std::cout << "Control: " << id->name() << ": "
> > +			  << info.toString() << std::endl;
> > +	}
> > +}
> > +
> > +void CameraSession::listProperties() const
> > +{
> > +	for (const auto &prop : camera_->properties()) {
> > +		const ControlId *id = properties::properties.at(prop.first);
> > +		const ControlValue &value = prop.second;
> > +
> > +		std::cout << "Property: " << id->name() << " = "
> > +			  << value.toString() << std::endl;
> > +	}
> > +}
> > +
> > +void CameraSession::infoConfiguration() const
> > +{
> > +	unsigned int index = 0;
> > +	for (const StreamConfiguration &cfg : *config_) {
> > +		std::cout << index << ": " << cfg.toString() << std::endl;
> > +
> > +		const StreamFormats &formats = cfg.formats();
> > +		for (PixelFormat pixelformat : formats.pixelformats()) {
> > +			std::cout << " * Pixelformat: "
> > +				  << pixelformat.toString() << " "
> > +				  << formats.range(pixelformat).toString()
> > +				  << std::endl;
> > +
> > +			for (const Size &size : formats.sizes(pixelformat))
> > +				std::cout << "  - " << size.toString()
> > +					  << std::endl;
> > +		}
> > +
> > +		index++;
> > +	}
> > +}
> > +
> >  int CameraSession::start(const OptionsParser::Options &options)
> >  {
> >  	int ret;
> > diff --git a/src/cam/camera_session.h b/src/cam/camera_session.h
> > index 88baf9061629..6221aadadf90 100644
> > --- a/src/cam/camera_session.h
> > +++ b/src/cam/camera_session.h
> > @@ -35,6 +35,10 @@ public:
> >  	libcamera::Camera *camera() { return camera_.get(); }
> >  	libcamera::CameraConfiguration *config() { return config_.get(); }
> >  
> > +	void listControls() const;
> > +	void listProperties() const;
> > +	void infoConfiguration() const;
> > +
> >  	int start(const OptionsParser::Options &options);
> >  	void stop();
> >  
> > diff --git a/src/cam/main.cpp b/src/cam/main.cpp
> > index cba0793ac39b..4fe0c4c368d1 100644
> > --- a/src/cam/main.cpp
> > +++ b/src/cam/main.cpp
> > @@ -39,9 +39,6 @@ private:
> >  	void cameraRemoved(std::shared_ptr<Camera> cam);
> >  	void captureDone();
> >  	int parseOptions(int argc, char *argv[]);
> > -	int listControls();
> > -	int listProperties();
> > -	int infoConfiguration();
> >  	int run();
> >  
> >  	static std::string cameraName(const Camera *camera);
> > @@ -158,74 +155,6 @@ int CamApp::parseOptions(int argc, char *argv[])
> >  	return 0;
> >  }
> >  
> > -int CamApp::listControls()
> > -{
> > -	if (!session_) {
> > -		std::cout << "Cannot list controls without a camera"
> > -			  << std::endl;
> > -		return -EINVAL;
> > -	}
> > -
> > -	for (const auto &ctrl : session_->camera()->controls()) {
> > -		const ControlId *id = ctrl.first;
> > -		const ControlInfo &info = ctrl.second;
> > -
> > -		std::cout << "Control: " << id->name() << ": "
> > -			  << info.toString() << std::endl;
> > -	}
> > -
> > -	return 0;
> > -}
> > -
> > -int CamApp::listProperties()
> > -{
> > -	if (!session_) {
> > -		std::cout << "Cannot list properties without a camera"
> > -			  << std::endl;
> > -		return -EINVAL;
> > -	}
> > -
> > -	for (const auto &prop : session_->camera()->properties()) {
> > -		const ControlId *id = properties::properties.at(prop.first);
> > -		const ControlValue &value = prop.second;
> > -
> > -		std::cout << "Property: " << id->name() << " = "
> > -			  << value.toString() << std::endl;
> > -	}
> > -
> > -	return 0;
> > -}
> > -
> > -int CamApp::infoConfiguration()
> > -{
> > -	if (!session_) {
> > -		std::cout << "Cannot print stream information without a camera"
> > -			  << std::endl;
> > -		return -EINVAL;
> > -	}
> > -
> > -	unsigned int index = 0;
> > -	for (const StreamConfiguration &cfg : *session_->config()) {
> > -		std::cout << index << ": " << cfg.toString() << std::endl;
> > -
> > -		const StreamFormats &formats = cfg.formats();
> > -		for (PixelFormat pixelformat : formats.pixelformats()) {
> > -			std::cout << " * Pixelformat: "
> > -				  << pixelformat.toString() << " "
> > -				  << formats.range(pixelformat).toString()
> > -				  << std::endl;
> > -
> > -			for (const Size &size : formats.sizes(pixelformat))
> > -				std::cout << "  - " << size.toString()
> > -					  << std::endl;
> > -		}
> > -
> > -		index++;
> > -	}
> > -
> > -	return 0;
> > -}
> > -
> >  void CamApp::cameraAdded(std::shared_ptr<Camera> cam)
> >  {
> >  	std::cout << "Camera Added: " << cam->id() << std::endl;
> > @@ -269,21 +198,33 @@ int CamApp::run()
> >  	}
> >  
> >  	if (options_.isSet(OptListControls)) {
> > -		ret = listControls();
> > -		if (ret)
> > -			return ret;
> > +		if (!session_) {
> > +			std::cout << "Cannot list controls without a camera"
> > +				  << std::endl;
> > +			return -EINVAL;
> > +		}
> > +
> > +		session_->listControls();
> >  	}
> >  
> >  	if (options_.isSet(OptListProperties)) {
> > -		ret = listProperties();
> > -		if (ret)
> > -			return ret;
> > +		if (!session_) {
> > +			std::cout << "Cannot list properties without a camera"
> > +				  << std::endl;
> > +			return -EINVAL;
> > +		}
> > +
> > +		session_->listProperties();
> >  	}
> >  
> >  	if (options_.isSet(OptInfo)) {
> > -		ret = infoConfiguration();
> > -		if (ret)
> > -			return ret;
> > +		if (!session_) {
> > +			std::cout << "Cannot print stream information without a camera"
> > +				  << std::endl;
> > +			return -EINVAL;
> > +		}
> > +
> > +		session_->infoConfiguration();
> >  	}
> >  
> >  	if (options_.isSet(OptCapture)) {

Patch
diff mbox series

diff --git a/src/cam/camera_session.cpp b/src/cam/camera_session.cpp
index 10e66446ee67..ceb2c3ab3a92 100644
--- a/src/cam/camera_session.cpp
+++ b/src/cam/camera_session.cpp
@@ -11,6 +11,7 @@ 
 #include <sstream>
 
 #include <libcamera/control_ids.h>
+#include <libcamera/property_ids.h>
 
 #include "camera_session.h"
 #include "event_loop.h"
@@ -89,6 +90,50 @@  CameraSession::~CameraSession()
 		camera_->release();
 }
 
+void CameraSession::listControls() const
+{
+	for (const auto &ctrl : camera_->controls()) {
+		const ControlId *id = ctrl.first;
+		const ControlInfo &info = ctrl.second;
+
+		std::cout << "Control: " << id->name() << ": "
+			  << info.toString() << std::endl;
+	}
+}
+
+void CameraSession::listProperties() const
+{
+	for (const auto &prop : camera_->properties()) {
+		const ControlId *id = properties::properties.at(prop.first);
+		const ControlValue &value = prop.second;
+
+		std::cout << "Property: " << id->name() << " = "
+			  << value.toString() << std::endl;
+	}
+}
+
+void CameraSession::infoConfiguration() const
+{
+	unsigned int index = 0;
+	for (const StreamConfiguration &cfg : *config_) {
+		std::cout << index << ": " << cfg.toString() << std::endl;
+
+		const StreamFormats &formats = cfg.formats();
+		for (PixelFormat pixelformat : formats.pixelformats()) {
+			std::cout << " * Pixelformat: "
+				  << pixelformat.toString() << " "
+				  << formats.range(pixelformat).toString()
+				  << std::endl;
+
+			for (const Size &size : formats.sizes(pixelformat))
+				std::cout << "  - " << size.toString()
+					  << std::endl;
+		}
+
+		index++;
+	}
+}
+
 int CameraSession::start(const OptionsParser::Options &options)
 {
 	int ret;
diff --git a/src/cam/camera_session.h b/src/cam/camera_session.h
index 88baf9061629..6221aadadf90 100644
--- a/src/cam/camera_session.h
+++ b/src/cam/camera_session.h
@@ -35,6 +35,10 @@  public:
 	libcamera::Camera *camera() { return camera_.get(); }
 	libcamera::CameraConfiguration *config() { return config_.get(); }
 
+	void listControls() const;
+	void listProperties() const;
+	void infoConfiguration() const;
+
 	int start(const OptionsParser::Options &options);
 	void stop();
 
diff --git a/src/cam/main.cpp b/src/cam/main.cpp
index cba0793ac39b..4fe0c4c368d1 100644
--- a/src/cam/main.cpp
+++ b/src/cam/main.cpp
@@ -39,9 +39,6 @@  private:
 	void cameraRemoved(std::shared_ptr<Camera> cam);
 	void captureDone();
 	int parseOptions(int argc, char *argv[]);
-	int listControls();
-	int listProperties();
-	int infoConfiguration();
 	int run();
 
 	static std::string cameraName(const Camera *camera);
@@ -158,74 +155,6 @@  int CamApp::parseOptions(int argc, char *argv[])
 	return 0;
 }
 
-int CamApp::listControls()
-{
-	if (!session_) {
-		std::cout << "Cannot list controls without a camera"
-			  << std::endl;
-		return -EINVAL;
-	}
-
-	for (const auto &ctrl : session_->camera()->controls()) {
-		const ControlId *id = ctrl.first;
-		const ControlInfo &info = ctrl.second;
-
-		std::cout << "Control: " << id->name() << ": "
-			  << info.toString() << std::endl;
-	}
-
-	return 0;
-}
-
-int CamApp::listProperties()
-{
-	if (!session_) {
-		std::cout << "Cannot list properties without a camera"
-			  << std::endl;
-		return -EINVAL;
-	}
-
-	for (const auto &prop : session_->camera()->properties()) {
-		const ControlId *id = properties::properties.at(prop.first);
-		const ControlValue &value = prop.second;
-
-		std::cout << "Property: " << id->name() << " = "
-			  << value.toString() << std::endl;
-	}
-
-	return 0;
-}
-
-int CamApp::infoConfiguration()
-{
-	if (!session_) {
-		std::cout << "Cannot print stream information without a camera"
-			  << std::endl;
-		return -EINVAL;
-	}
-
-	unsigned int index = 0;
-	for (const StreamConfiguration &cfg : *session_->config()) {
-		std::cout << index << ": " << cfg.toString() << std::endl;
-
-		const StreamFormats &formats = cfg.formats();
-		for (PixelFormat pixelformat : formats.pixelformats()) {
-			std::cout << " * Pixelformat: "
-				  << pixelformat.toString() << " "
-				  << formats.range(pixelformat).toString()
-				  << std::endl;
-
-			for (const Size &size : formats.sizes(pixelformat))
-				std::cout << "  - " << size.toString()
-					  << std::endl;
-		}
-
-		index++;
-	}
-
-	return 0;
-}
-
 void CamApp::cameraAdded(std::shared_ptr<Camera> cam)
 {
 	std::cout << "Camera Added: " << cam->id() << std::endl;
@@ -269,21 +198,33 @@  int CamApp::run()
 	}
 
 	if (options_.isSet(OptListControls)) {
-		ret = listControls();
-		if (ret)
-			return ret;
+		if (!session_) {
+			std::cout << "Cannot list controls without a camera"
+				  << std::endl;
+			return -EINVAL;
+		}
+
+		session_->listControls();
 	}
 
 	if (options_.isSet(OptListProperties)) {
-		ret = listProperties();
-		if (ret)
-			return ret;
+		if (!session_) {
+			std::cout << "Cannot list properties without a camera"
+				  << std::endl;
+			return -EINVAL;
+		}
+
+		session_->listProperties();
 	}
 
 	if (options_.isSet(OptInfo)) {
-		ret = infoConfiguration();
-		if (ret)
-			return ret;
+		if (!session_) {
+			std::cout << "Cannot print stream information without a camera"
+				  << std::endl;
+			return -EINVAL;
+		}
+
+		session_->infoConfiguration();
 	}
 
 	if (options_.isSet(OptCapture)) {