70e53be538
In preparation of reworking how a default configuration is retrieved from a camera add stream usages. The usages will be used by applications to describe how they intend to use a camera and replace the Stream IDs when retrieving default configuration from the camera using streamConfiguration(). Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
81 lines
1.3 KiB
C++
81 lines
1.3 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* stream.h - Video stream for a Camera
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*/
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#ifndef __LIBCAMERA_STREAM_H__
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#define __LIBCAMERA_STREAM_H__
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#include <libcamera/buffer.h>
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#include <libcamera/geometry.h>
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namespace libcamera {
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class Camera;
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struct StreamConfiguration {
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unsigned int width;
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unsigned int height;
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unsigned int pixelFormat;
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unsigned int bufferCount;
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};
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class StreamUsage
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{
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public:
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enum Role {
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StillCapture,
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VideoRecording,
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Viewfinder,
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};
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Role role() const { return role_; }
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const Size &size() const { return size_; }
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protected:
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explicit StreamUsage(Role role);
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StreamUsage(Role role, int width, int height);
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private:
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Role role_;
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Size size_;
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};
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class Stream final
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{
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public:
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class StillCapture : public StreamUsage
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{
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public:
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StillCapture();
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};
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class VideoRecording : public StreamUsage
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{
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public:
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VideoRecording();
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};
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class Viewfinder : public StreamUsage
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{
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public:
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Viewfinder(int width, int height);
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};
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Stream();
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BufferPool &bufferPool() { return bufferPool_; }
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const StreamConfiguration &configuration() const { return configuration_; }
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private:
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friend class Camera;
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BufferPool bufferPool_;
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StreamConfiguration configuration_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_STREAM_H__ */
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