vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b

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/* For iOS video I/O
* by Eduard Feicho on 29/07/12
* Copyright 2012. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#import <UIKit/UIKit.h>
#import <Accelerate/Accelerate.h>
#import <AVFoundation/AVFoundation.h>
#import <ImageIO/ImageIO.h>
#include "opencv2/core.hpp"
//! @addtogroup videoio_ios
//! @{
/////////////////////////////////////// CvAbstractCamera /////////////////////////////////////
@class CvAbstractCamera;
CV_EXPORTS @interface CvAbstractCamera : NSObject
{
UIDeviceOrientation currentDeviceOrientation;
BOOL cameraAvailable;
}
@property (nonatomic, strong) AVCaptureSession* captureSession;
@property (nonatomic, strong) AVCaptureConnection* videoCaptureConnection;
@property (nonatomic, readonly) BOOL running;
@property (nonatomic, readonly) BOOL captureSessionLoaded;
@property (nonatomic, assign) int defaultFPS;
@property (nonatomic, readonly) AVCaptureVideoPreviewLayer *captureVideoPreviewLayer;
@property (nonatomic, assign) AVCaptureDevicePosition defaultAVCaptureDevicePosition;
@property (nonatomic, assign) AVCaptureVideoOrientation defaultAVCaptureVideoOrientation;
@property (nonatomic, assign) BOOL useAVCaptureVideoPreviewLayer;
@property (nonatomic, strong) NSString *const defaultAVCaptureSessionPreset;
@property (nonatomic, assign) int imageWidth;
@property (nonatomic, assign) int imageHeight;
@property (nonatomic, strong) UIView* parentView;
- CV_UNUSED(start);
- CV_UNUSED(stop);
- CV_UNUSED(switchCameras);
- (id)initWithParentView:(UIView*)parent;
- CV_UNUSED(createCaptureOutput);
- CV_UNUSED(createVideoPreviewLayer);
- CV_UNUSED(updateOrientation);
- CV_UNUSED(lockFocus);
- CV_UNUSED(unlockFocus);
- CV_UNUSED(lockExposure);
- CV_UNUSED(unlockExposure);
- CV_UNUSED(lockBalance);
- CV_UNUSED(unlockBalance);
@end
///////////////////////////////// CvVideoCamera ///////////////////////////////////////////
@class CvVideoCamera;
CV_EXPORTS @protocol CvVideoCameraDelegate <NSObject>
#ifdef __cplusplus
// delegate method for processing image frames
- (void)processImage:(cv::Mat&)image;
#endif
@end
CV_EXPORTS @interface CvVideoCamera : CvAbstractCamera<AVCaptureVideoDataOutputSampleBufferDelegate>
{
AVCaptureVideoDataOutput *videoDataOutput;
dispatch_queue_t videoDataOutputQueue;
CALayer *customPreviewLayer;
CMTime lastSampleTime;
}
@property (nonatomic, weak) id<CvVideoCameraDelegate> delegate;
@property (nonatomic, assign) BOOL grayscaleMode;
@property (nonatomic, assign) BOOL recordVideo;
@property (nonatomic, assign) BOOL rotateVideo;
@property (nonatomic, strong) AVAssetWriterInput* recordAssetWriterInput;
@property (nonatomic, strong) AVAssetWriterInputPixelBufferAdaptor* recordPixelBufferAdaptor;
@property (nonatomic, strong) AVAssetWriter* recordAssetWriter;
- (void)adjustLayoutToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;
- CV_UNUSED(layoutPreviewLayer);
- CV_UNUSED(saveVideo);
- (NSURL *)videoFileURL;
- (NSString *)videoFileString;
@end
///////////////////////////////// CvPhotoCamera ///////////////////////////////////////////
@class CvPhotoCamera;
CV_EXPORTS @protocol CvPhotoCameraDelegate <NSObject>
- (void)photoCamera:(CvPhotoCamera*)photoCamera capturedImage:(UIImage *)image;
- (void)photoCameraCancel:(CvPhotoCamera*)photoCamera;
@end
CV_EXPORTS @interface CvPhotoCamera : CvAbstractCamera
{
AVCaptureStillImageOutput *stillImageOutput;
}
@property (nonatomic, weak) id<CvPhotoCameraDelegate> delegate;
- CV_UNUSED(takePicture);
@end
//! @} videoio_ios
@@ -0,0 +1,132 @@
// Video support for Windows Runtime
// Copyright (c) Microsoft Open Technologies, Inc.
// All rights reserved.
//
// (3 - clause BSD License)
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that
// the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
// following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or
// promote products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT(INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
#include <ppl.h>
#include <functional>
#include <concrt.h>
#include <agile.h>
#include "opencv2/core/cvdef.h"
namespace cv
{
//! @addtogroup videoio_winrt
//! @{
enum {
OPEN_CAMERA = 300,
CLOSE_CAMERA,
UPDATE_IMAGE_ELEMENT,
SHOW_TRACKBAR
};
/********************************** WinRT API ************************************************/
template <typename ...Args>
CV_EXPORTS void winrt_startMessageLoop(std::function<void(Args...)>&& callback, Args... args);
template <typename ...Args>
CV_EXPORTS void winrt_startMessageLoop(void callback(Args...), Args... args);
/** @brief
@note
Starts (1) frame-grabbing loop and (2) message loop
1. Function passed as an argument must implement common OCV reading frames
pattern (see cv::VideoCapture documentation) AND call cv::winrt_imgshow().
2. Message processing loop required to overcome WinRT container and type
conversion restrictions. OCV provides default implementation
Here is how the class can be used:
@code
void cvMain()
{
Mat frame;
VideoCapture cam;
cam.open(0);
while (1)
{
cam >> frame;
// don't reprocess the same frame again
if (!cam.grab()) continue;
// your processing logic goes here
// obligatory step to get XAML image component updated
winrt_imshow();
}
}
MainPage::MainPage()
{
InitializeComponent();
cv::winrt_setFrameContainer(cvImage);
cv::winrt_startMessageLoop(cvMain);
}
@endcode
*/
template
CV_EXPORTS void winrt_startMessageLoop(void callback(void));
/** @brief
@note
Must be called from WinRT specific callback to handle image grabber state.
Here is how the class can be used:
@code
MainPage::MainPage()
{
// ...
Window::Current->VisibilityChanged += ref new Windows::UI::Xaml::WindowVisibilityChangedEventHandler(this, &Application::MainPage::OnVisibilityChanged);
// ...
}
void Application::MainPage::OnVisibilityChanged(Platform::Object ^sender,
Windows::UI::Core::VisibilityChangedEventArgs ^e)
{
cv::winrt_onVisibilityChanged(e->Visible);
}
@endcode
*/
CV_EXPORTS void winrt_onVisibilityChanged(bool visible);
/** @brief
@note
Must be called to assign WinRT control holding image you're working with.
Code sample is available for winrt_startMessageLoop().
*/
CV_EXPORTS void winrt_setFrameContainer(::Windows::UI::Xaml::Controls::Image^ image);
/** @brief
@note
Must be called to update attached image source.
Code sample is available for winrt_startMessageLoop().
*/
CV_EXPORTS void winrt_imshow();
//! @} videoio_winrt
} // cv
@@ -0,0 +1,194 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef CONTAINER_AVI_HPP
#define CONTAINER_AVI_HPP
#ifndef __OPENCV_BUILD
# error this is a private header which should not be used from outside of the OpenCV library
#endif
#include "opencv2/core/types.hpp"
#include <deque>
#include <vector>
#include <string>
#include <memory>
namespace cv
{
/*
AVI struct:
RIFF ('AVI '
LIST ('hdrl'
'avih'(<Main AVI Header>)
LIST ('strl'
'strh'(<Stream header>)
'strf'(<Stream format>)
[ 'strd'(<Additional header data>) ]
[ 'strn'(<Stream name>) ]
[ 'indx'(<Odml index data>) ]
...
)
[LIST ('strl' ...)]
[LIST ('strl' ...)]
...
[LIST ('odml'
'dmlh'(<ODML header data>)
...
)
]
...
)
[LIST ('INFO' ...)]
[JUNK]
LIST ('movi'
{{xxdb|xxdc|xxpc|xxwb}(<Data>) | LIST ('rec '
{xxdb|xxdc|xxpc|xxwb}(<Data>)
{xxdb|xxdc|xxpc|xxwb}(<Data>)
...
)
...
}
...
)
['idx1' (<AVI Index>) ]
)
{xxdb|xxdc|xxpc|xxwb}
xx - stream number: 00, 01, 02, ...
db - uncompressed video frame
dc - compressed video frame
pc - palette change
wb - audio frame
JUNK section may pad any data section and must be ignored
*/
typedef std::deque< std::pair<uint64_t, uint32_t> > frame_list;
typedef frame_list::iterator frame_iterator;
struct RiffChunk;
struct RiffList;
class VideoInputStream;
enum Codecs { MJPEG };
//Represents single MJPEG video stream within single AVI/AVIX entry
//Multiple video streams within single AVI/AVIX entry are not supported
//ODML index is not supported
class CV_EXPORTS AVIReadContainer
{
public:
AVIReadContainer();
void initStream(const std::string& filename);
void initStream(std::shared_ptr<VideoInputStream> m_file_stream_);
void close();
//stores founded frames in m_frame_list which can be accessed via getFrames
bool parseAvi(Codecs codec_) { return parseAviWithFrameList(m_frame_list, codec_); }
//stores founded frames in in_frame_list. getFrames() would return empty list
bool parseAvi(frame_list& in_frame_list, Codecs codec_) { return parseAviWithFrameList(in_frame_list, codec_); }
size_t getFramesCount() { return m_frame_list.size(); }
frame_list& getFrames() { return m_frame_list; }
unsigned int getWidth() { return m_width; }
unsigned int getHeight() { return m_height; }
double getFps() { return m_fps; }
std::vector<char> readFrame(frame_iterator it);
bool parseRiff(frame_list &m_mjpeg_frames);
protected:
bool parseAviWithFrameList(frame_list& in_frame_list, Codecs codec_);
void skipJunk(RiffChunk& chunk);
void skipJunk(RiffList& list);
bool parseHdrlList(Codecs codec_);
bool parseIndex(unsigned int index_size, frame_list& in_frame_list);
bool parseMovi(frame_list& in_frame_list)
{
//not implemented
CV_UNUSED(in_frame_list);
// FIXIT: in_frame_list.empty();
return true;
}
bool parseStrl(char stream_id, Codecs codec_);
bool parseInfo()
{
//not implemented
return true;
}
void printError(RiffList& list, unsigned int expected_fourcc);
void printError(RiffChunk& chunk, unsigned int expected_fourcc);
std::shared_ptr<VideoInputStream> m_file_stream;
unsigned int m_stream_id;
unsigned long long int m_movi_start;
unsigned long long int m_movi_end;
frame_list m_frame_list;
unsigned int m_width;
unsigned int m_height;
double m_fps;
bool m_is_indx_present;
};
enum { COLORSPACE_GRAY=0, COLORSPACE_RGBA=1, COLORSPACE_BGR=2, COLORSPACE_YUV444P=3 };
enum StreamType { db, dc, pc, wb };
class BitStream;
// {xxdb|xxdc|xxpc|xxwb}
// xx - stream number: 00, 01, 02, ...
// db - uncompressed video frame
// dc - compressed video frame
// pc - palette change
// wb - audio frame
class CV_EXPORTS AVIWriteContainer
{
public:
AVIWriteContainer();
~AVIWriteContainer();
bool initContainer(const std::string& filename, double fps, cv::Size size, bool iscolor);
void startWriteAVI(int stream_count);
void writeStreamHeader(Codecs codec_);
void startWriteChunk(uint32_t fourcc);
void endWriteChunk();
int getAVIIndex(int stream_number, StreamType strm_type);
void writeIndex(int stream_number, StreamType strm_type);
void finishWriteAVI();
bool isOpenedStream() const;
bool isEmptyFrameOffset() const { return frameOffset.empty(); }
int getWidth() const { return width; }
int getHeight() const { return height; }
int getChannels() const { return channels; }
size_t getMoviPointer() const { return moviPointer; }
size_t getStreamPos() const;
void pushFrameOffset(size_t elem) { frameOffset.push_back(elem); }
void pushFrameSize(size_t elem) { frameSize.push_back(elem); }
bool isEmptyFrameSize() const { return frameSize.empty(); }
size_t atFrameSize(size_t i) const { return frameSize[i]; }
size_t countFrameSize() const { return frameSize.size(); }
void jputStreamShort(int val);
void putStreamBytes(const uchar* buf, int count);
void putStreamByte(int val);
void jputStream(unsigned currval);
void jflushStream(unsigned currval, int bitIdx);
private:
std::shared_ptr<BitStream> strm;
int outfps;
int width, height, channels;
size_t moviPointer;
std::vector<size_t> frameOffset, frameSize, AVIChunkSizeIndex, frameNumIndexes;
};
}
#endif //CONTAINER_AVI_HPP
@@ -0,0 +1,34 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
//
// This file should not be used with compiler (documentation only)
//
namespace cv {
/** @addtogroup videoio_hwaccel
This section contains information about API to control Hardware-accelerated video decoding and encoding.
@note Check [Wiki page](https://github.com/opencv/opencv/wiki/Video-IO-hardware-acceleration)
for description of supported hardware / software configurations and available benchmarks
cv::VideoCapture properties:
- #CAP_PROP_HW_ACCELERATION (as #VideoAccelerationType)
- #CAP_PROP_HW_DEVICE
cv::VideoWriter properties:
- #VIDEOWRITER_PROP_HW_ACCELERATION (as #VideoAccelerationType)
- #VIDEOWRITER_PROP_HW_DEVICE
Properties are supported by these backends:
- #CAP_FFMPEG
- #CAP_GSTREAMER
- #CAP_MSMF (Windows)
@{
*/
/** @} */
} // namespace
@@ -0,0 +1,82 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_VIDEOIO_REGISTRY_HPP
#define OPENCV_VIDEOIO_REGISTRY_HPP
#include <opencv2/videoio.hpp>
namespace cv { namespace videoio_registry {
/** @addtogroup videoio_registry
This section contains API description how to query/configure available Video I/O backends.
Runtime configuration options:
- enable debug mode: `OPENCV_VIDEOIO_DEBUG=1`
- change backend priority: `OPENCV_VIDEOIO_PRIORITY_<backend>=9999`
- disable backend: `OPENCV_VIDEOIO_PRIORITY_<backend>=0`
- specify list of backends with high priority (>100000): `OPENCV_VIDEOIO_PRIORITY_LIST=FFMPEG,GSTREAMER`
@{
*/
/** @brief Returns backend API name or "UnknownVideoAPI(xxx)"
@param api backend ID (#VideoCaptureAPIs)
*/
CV_EXPORTS_W cv::String getBackendName(VideoCaptureAPIs api);
/** @brief Returns list of all available backends */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getBackends();
/** @brief Returns list of available backends which works via `cv::VideoCapture(int index)` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getCameraBackends();
/** @brief Returns list of available backends which works via `cv::VideoCapture(filename)` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getStreamBackends();
/** @brief Returns list of available backends which works via `cv::VideoCapture(buffer)` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getStreamBufferedBackends();
/** @brief Returns list of available backends which works via `cv::VideoWriter()` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getWriterBackends();
/** @brief Returns true if backend is available */
CV_EXPORTS_W bool hasBackend(VideoCaptureAPIs api);
/** @brief Returns true if backend is built in (false if backend is used as plugin) */
CV_EXPORTS_W bool isBackendBuiltIn(VideoCaptureAPIs api);
/** @brief Returns description and ABI/API version of videoio plugin's camera interface */
CV_EXPORTS_W std::string getCameraBackendPluginVersion(
VideoCaptureAPIs api,
CV_OUT int& version_ABI,
CV_OUT int& version_API
);
/** @brief Returns description and ABI/API version of videoio plugin's stream capture interface */
CV_EXPORTS_W std::string getStreamBackendPluginVersion(
VideoCaptureAPIs api,
CV_OUT int& version_ABI,
CV_OUT int& version_API
);
/** @brief Returns description and ABI/API version of videoio plugin's buffer capture interface */
CV_EXPORTS_W std::string getStreamBufferedBackendPluginVersion(
VideoCaptureAPIs api,
CV_OUT int& version_ABI,
CV_OUT int& version_API
);
/** @brief Returns description and ABI/API version of videoio plugin's writer interface */
CV_EXPORTS_W std::string getWriterBackendPluginVersion(
VideoCaptureAPIs api,
CV_OUT int& version_ABI,
CV_OUT int& version_API
);
//! @}
}} // namespace
#endif // OPENCV_VIDEOIO_REGISTRY_HPP
@@ -0,0 +1,46 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_VIDEOIO_UTILS_PRIVATE_HPP
#define OPENCV_VIDEOIO_UTILS_PRIVATE_HPP
#include "opencv2/core/cvdef.h"
#include <string>
namespace cv {
CV_EXPORTS std::string icvExtractPattern(const std::string& filename, unsigned *offset);
class PluginStreamReader : public IStreamReader
{
public:
PluginStreamReader(void* _opaque,
long long (*_read)(void* opaque, char* buffer, long long size),
long long (*_seek)(void* opaque, long long offset, int way))
{
opaque = _opaque;
readCallback = _read;
seekCallback = _seek;
}
virtual ~PluginStreamReader() {}
long long read(char* buffer, long long size) override
{
return readCallback(opaque, buffer, size);
}
long long seek(long long offset, int way) override
{
return seekCallback(opaque, offset, way);
}
private:
void* opaque;
long long (*readCallback)(void* opaque, char* buffer, long long size);
long long (*seekCallback)(void* opaque, long long offset, int way);
};
}
#endif // OPENCV_VIDEOIO_UTILS_PRIVATE_HPP
@@ -0,0 +1,48 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifdef __OPENCV_BUILD
#error this is a compatibility header which should not be used inside the OpenCV library
#endif
#include "opencv2/videoio.hpp"