Revert "documentation: avoid links to 'master' branch from 3.4 maintenance branch" This reverts commitpull/11684/head9ba9358ecb. Revert "documentation: avoid links to 'master' branch from 3.4 maintenance branch (2)" This reverts commitf185802489.
Alexander Alekhin
7 years ago
commit
45dd575ed2
147 changed files with 5790 additions and 2914 deletions
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Detecting corners location in subpixeles {#tutorial_corner_subpixeles} |
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======================================== |
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|
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Goal |
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---- |
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|
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In this tutorial you will learn how to: |
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|
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- Use the OpenCV function @ref cv::cornerSubPix to find more exact corner positions (more exact |
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than integer pixels). |
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|
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Theory |
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------ |
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|
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Code |
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---- |
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|
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This tutorial code's is shown lines below. You can also download it from |
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[here](https://github.com/opencv/opencv/tree/master/samples/cpp/tutorial_code/TrackingMotion/cornerSubPix_Demo.cpp) |
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@include samples/cpp/tutorial_code/TrackingMotion/cornerSubPix_Demo.cpp |
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|
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Explanation |
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----------- |
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|
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Result |
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------ |
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|
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 |
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|
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Here is the result: |
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|
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 |
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@ -0,0 +1,46 @@ |
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Detecting corners location in subpixels {#tutorial_corner_subpixels} |
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======================================= |
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|
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Goal |
||||
---- |
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|
||||
In this tutorial you will learn how to: |
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|
||||
- Use the OpenCV function @ref cv::cornerSubPix to find more exact corner positions (more exact |
||||
than integer pixels). |
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|
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Theory |
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------ |
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|
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Code |
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---- |
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|
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@add_toggle_cpp |
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This tutorial code's is shown lines below. You can also download it from |
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[here](https://github.com/opencv/opencv/tree/master/samples/cpp/tutorial_code/TrackingMotion/cornerSubPix_Demo.cpp) |
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@include samples/cpp/tutorial_code/TrackingMotion/cornerSubPix_Demo.cpp |
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@end_toggle |
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|
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@add_toggle_java |
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This tutorial code's is shown lines below. You can also download it from |
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[here](https://github.com/opencv/opencv/tree/master/samples/java/tutorial_code/TrackingMotion/corner_subpixels/CornerSubPixDemo.java) |
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@include samples/java/tutorial_code/TrackingMotion/corner_subpixels/CornerSubPixDemo.java |
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@end_toggle |
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|
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@add_toggle_python |
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This tutorial code's is shown lines below. You can also download it from |
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[here](https://github.com/opencv/opencv/tree/master/samples/python/tutorial_code/TrackingMotion/corner_subpixels/cornerSubPix_Demo.py) |
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@include samples/python/tutorial_code/TrackingMotion/corner_subpixels/cornerSubPix_Demo.py |
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@end_toggle |
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|
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Explanation |
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----------- |
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|
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Result |
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------ |
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|
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 |
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|
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Here is the result: |
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|
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 |
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#include "../precomp.hpp" |
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#include "layers_common.hpp" |
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|
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namespace cv { namespace dnn { |
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|
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class CropAndResizeLayerImpl CV_FINAL : public CropAndResizeLayer |
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{ |
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public: |
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CropAndResizeLayerImpl(const LayerParams& params) |
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{ |
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CV_Assert(params.has("width"), params.has("height")); |
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outWidth = params.get<float>("width"); |
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outHeight = params.get<float>("height"); |
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} |
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|
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bool getMemoryShapes(const std::vector<MatShape> &inputs, |
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const int requiredOutputs, |
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std::vector<MatShape> &outputs, |
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std::vector<MatShape> &internals) const CV_OVERRIDE |
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{ |
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CV_Assert(inputs.size() == 2, inputs[0].size() == 4); |
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if (inputs[0][0] != 1) |
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CV_Error(Error::StsNotImplemented, ""); |
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outputs.resize(1, MatShape(4)); |
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outputs[0][0] = inputs[1][2]; // Number of bounding boxes.
|
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outputs[0][1] = inputs[0][1]; // Number of channels.
|
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outputs[0][2] = outHeight; |
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outputs[0][3] = outWidth; |
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return false; |
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} |
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|
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void forward(InputArrayOfArrays inputs_arr, OutputArrayOfArrays outputs_arr, OutputArrayOfArrays internals_arr) CV_OVERRIDE |
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{ |
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CV_TRACE_FUNCTION(); |
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CV_TRACE_ARG_VALUE(name, "name", name.c_str()); |
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|
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Layer::forward_fallback(inputs_arr, outputs_arr, internals_arr); |
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} |
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|
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void forward(std::vector<Mat*> &inputs, std::vector<Mat> &outputs, std::vector<Mat> &internals) CV_OVERRIDE |
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{ |
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CV_TRACE_FUNCTION(); |
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CV_TRACE_ARG_VALUE(name, "name", name.c_str()); |
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|
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Mat& inp = *inputs[0]; |
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Mat& out = outputs[0]; |
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Mat boxes = inputs[1]->reshape(1, inputs[1]->total() / 7); |
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const int numChannels = inp.size[1]; |
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const int inpHeight = inp.size[2]; |
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const int inpWidth = inp.size[3]; |
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const int inpSpatialSize = inpHeight * inpWidth; |
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const int outSpatialSize = outHeight * outWidth; |
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CV_Assert(inp.isContinuous(), out.isContinuous()); |
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|
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for (int b = 0; b < boxes.rows; ++b) |
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{ |
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float* outDataBox = out.ptr<float>(b); |
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float left = boxes.at<float>(b, 3); |
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float top = boxes.at<float>(b, 4); |
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float right = boxes.at<float>(b, 5); |
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float bottom = boxes.at<float>(b, 6); |
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float boxWidth = right - left; |
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float boxHeight = bottom - top; |
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|
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float heightScale = boxHeight * static_cast<float>(inpHeight - 1) / (outHeight - 1); |
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float widthScale = boxWidth * static_cast<float>(inpWidth - 1) / (outWidth - 1); |
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for (int y = 0; y < outHeight; ++y) |
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{ |
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float input_y = top * (inpHeight - 1) + y * heightScale; |
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int y0 = static_cast<int>(input_y); |
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const float* inpData_row0 = (float*)inp.data + y0 * inpWidth; |
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const float* inpData_row1 = (y0 + 1 < inpHeight) ? (inpData_row0 + inpWidth) : inpData_row0; |
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for (int x = 0; x < outWidth; ++x) |
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{ |
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float input_x = left * (inpWidth - 1) + x * widthScale; |
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int x0 = static_cast<int>(input_x); |
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int x1 = std::min(x0 + 1, inpWidth - 1); |
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|
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float* outData = outDataBox + y * outWidth + x; |
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const float* inpData_row0_c = inpData_row0; |
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const float* inpData_row1_c = inpData_row1; |
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for (int c = 0; c < numChannels; ++c) |
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{ |
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*outData = inpData_row0_c[x0] + |
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(input_y - y0) * (inpData_row1_c[x0] - inpData_row0_c[x0]) + |
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(input_x - x0) * (inpData_row0_c[x1] - inpData_row0_c[x0] + |
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(input_y - y0) * (inpData_row1_c[x1] - inpData_row0_c[x1] - inpData_row1_c[x0] + inpData_row0_c[x0])); |
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|
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inpData_row0_c += inpSpatialSize; |
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inpData_row1_c += inpSpatialSize; |
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outData += outSpatialSize; |
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} |
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} |
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} |
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} |
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} |
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|
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private: |
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int outWidth, outHeight; |
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}; |
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|
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Ptr<Layer> CropAndResizeLayer::create(const LayerParams& params) |
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{ |
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return Ptr<CropAndResizeLayer>(new CropAndResizeLayerImpl(params)); |
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} |
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|
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} // namespace dnn
|
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} // namespace cv
|
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File diff suppressed because it is too large
Load Diff
@ -0,0 +1,152 @@ |
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// This file is part of OpenCV project.
|
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// It is subject to the license terms in the LICENSE file found in the top-level directory
|
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// of this distribution and at http://opencv.org/license.html.
|
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|
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#include "precomp.hpp" |
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|
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#include "videoio_registry.hpp" |
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|
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using namespace cv; |
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|
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// Legacy C-like API
|
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|
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CV_IMPL CvCapture* cvCreateCameraCapture(int index) |
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{ |
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// interpret preferred interface (0 = autodetect)
|
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int apiPreference = (index / 100) * 100; |
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if (apiPreference) |
||||
{ |
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index %= 100; |
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} |
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|
||||
const std::vector<VideoBackendInfo> backends = cv::videoio_registry::getAvailableBackends_CaptureByIndex(); |
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for (size_t i = 0; i < backends.size(); i++) |
||||
{ |
||||
const VideoBackendInfo& info = backends[i]; |
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if (apiPreference == CAP_ANY || apiPreference == info.id) |
||||
{ |
||||
CvCapture* capture = NULL; |
||||
Ptr<IVideoCapture> icap; // unused
|
||||
VideoCapture_create(capture, icap, info.id, index); |
||||
if (capture) |
||||
{ |
||||
return capture; |
||||
} |
||||
if (!icap.empty()) |
||||
{ |
||||
CV_LOG_WARNING(NULL, "cvCreateFileCaptureWithPreference: backend " << info.name << " doesn't support legacy API anymore.") |
||||
} |
||||
} |
||||
} |
||||
return NULL; |
||||
} |
||||
|
||||
CV_IMPL CvCapture* cvCreateFileCaptureWithPreference(const char* filename, int apiPreference) |
||||
{ |
||||
const std::vector<VideoBackendInfo> backends = cv::videoio_registry::getAvailableBackends_CaptureByFilename(); |
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for (size_t i = 0; i < backends.size(); i++) |
||||
{ |
||||
const VideoBackendInfo& info = backends[i]; |
||||
if (apiPreference == CAP_ANY || apiPreference == info.id) |
||||
{ |
||||
CvCapture* capture = NULL; |
||||
Ptr<IVideoCapture> icap; // unused
|
||||
VideoCapture_create(capture, icap, info.id, filename); |
||||
if (capture) |
||||
{ |
||||
return capture; |
||||
} |
||||
if (!icap.empty()) |
||||
{ |
||||
CV_LOG_WARNING(NULL, "cvCreateFileCaptureWithPreference: backend " << info.name << " doesn't support legacy API anymore.") |
||||
} |
||||
} |
||||
} |
||||
return NULL; |
||||
} |
||||
|
||||
CV_IMPL CvCapture* cvCreateFileCapture(const char * filename) |
||||
{ |
||||
return cvCreateFileCaptureWithPreference(filename, CAP_ANY); |
||||
} |
||||
|
||||
CV_IMPL CvVideoWriter* cvCreateVideoWriter(const char* filename, int fourcc, |
||||
double fps, CvSize frameSize, int is_color) |
||||
{ |
||||
const std::vector<VideoBackendInfo> backends = cv::videoio_registry::getAvailableBackends_Writer(); |
||||
for (size_t i = 0; i < backends.size(); i++) |
||||
{ |
||||
const VideoBackendInfo& info = backends[i]; |
||||
{ |
||||
CvVideoWriter* writer_ = NULL; |
||||
Ptr<IVideoWriter> iwriter; // unused
|
||||
VideoWriter_create(writer_, iwriter, info.id, filename, fourcc, fps, frameSize, is_color != 0); |
||||
if (writer_) |
||||
{ |
||||
return writer_; |
||||
} |
||||
if (!iwriter.empty()) |
||||
{ |
||||
CV_LOG_WARNING(NULL, "cvCreateVideoWriter: backend " << info.name << " doesn't support legacy API anymore.") |
||||
} |
||||
} |
||||
} |
||||
return NULL; |
||||
} |
||||
|
||||
CV_IMPL int cvWriteFrame(CvVideoWriter* writer, const IplImage* image) |
||||
{ |
||||
return writer ? writer->writeFrame(image) : 0; |
||||
} |
||||
|
||||
CV_IMPL void cvReleaseVideoWriter(CvVideoWriter** pwriter) |
||||
{ |
||||
if( pwriter && *pwriter ) |
||||
{ |
||||
delete *pwriter; |
||||
*pwriter = 0; |
||||
} |
||||
} |
||||
|
||||
CV_IMPL void cvReleaseCapture(CvCapture** pcapture) |
||||
{ |
||||
if (pcapture && *pcapture) |
||||
{ |
||||
delete *pcapture; |
||||
*pcapture = 0; |
||||
} |
||||
} |
||||
|
||||
CV_IMPL IplImage* cvQueryFrame(CvCapture* capture) |
||||
{ |
||||
if (!capture) |
||||
return 0; |
||||
if (!capture->grabFrame()) |
||||
return 0; |
||||
return capture->retrieveFrame(0); |
||||
} |
||||
|
||||
CV_IMPL int cvGrabFrame(CvCapture* capture) |
||||
{ |
||||
return capture ? capture->grabFrame() : 0; |
||||
} |
||||
|
||||
CV_IMPL IplImage* cvRetrieveFrame(CvCapture* capture, int idx) |
||||
{ |
||||
return capture ? capture->retrieveFrame(idx) : 0; |
||||
} |
||||
|
||||
CV_IMPL double cvGetCaptureProperty(CvCapture* capture, int id) |
||||
{ |
||||
return capture ? capture->getProperty(id) : 0; |
||||
} |
||||
|
||||
CV_IMPL int cvSetCaptureProperty(CvCapture* capture, int id, double value) |
||||
{ |
||||
return capture ? capture->setProperty(id, value) : 0; |
||||
} |
||||
|
||||
CV_IMPL int cvGetCaptureDomain(CvCapture* capture) |
||||
{ |
||||
return capture ? capture->getCaptureDomain() : 0; |
||||
} |
||||
@ -0,0 +1,644 @@ |
||||
// 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.
|
||||
|
||||
#include "precomp.hpp" |
||||
|
||||
#include "videoio_registry.hpp" |
||||
|
||||
#include "cap_intelperc.hpp" |
||||
#include "cap_librealsense.hpp" |
||||
#include "cap_dshow.hpp" |
||||
|
||||
#ifdef HAVE_MFX |
||||
#include "cap_mfx_reader.hpp" |
||||
#include "cap_mfx_writer.hpp" |
||||
#endif |
||||
|
||||
// All WinRT versions older than 8.0 should provide classes used for video support
|
||||
#if defined(WINRT) && !defined(WINRT_8_0) && defined(__cplusplus_winrt) |
||||
# include "cap_winrt_capture.hpp" |
||||
# include "cap_winrt_bridge.hpp" |
||||
# define WINRT_VIDEO |
||||
#endif |
||||
|
||||
#if defined _M_X64 && defined _MSC_VER && !defined CV_ICC |
||||
#pragma optimize("",off) |
||||
#pragma warning(disable: 4748) |
||||
#endif |
||||
|
||||
using namespace cv; |
||||
|
||||
namespace cv |
||||
{ |
||||
|
||||
static bool param_VIDEOIO_DEBUG = utils::getConfigurationParameterBool("OPENCV_VIDEOIO_DEBUG", false); |
||||
static bool param_VIDEOCAPTURE_DEBUG = utils::getConfigurationParameterBool("OPENCV_VIDEOCAPTURE_DEBUG", false); |
||||
static bool param_VIDEOWRITER_DEBUG = utils::getConfigurationParameterBool("OPENCV_VIDEOWRITER_DEBUG", false); |
||||
|
||||
namespace { |
||||
|
||||
#define DECLARE_BACKEND(cap, name, mode) { cap, (BackendMode)(mode), 1000, name } |
||||
|
||||
/** Ordering guidelines:
|
||||
- modern optimized, multi-platform libraries: ffmpeg, gstreamer, Media SDK |
||||
- platform specific universal SDK: WINRT, QTKIT/AVFOUNDATION, MSMF/VFW/DSHOW, V4L/V4L2 |
||||
- RGB-D: OpenNI/OpenNI2, INTELPERC/REALSENSE |
||||
- special OpenCV (file-based): "images", "mjpeg" |
||||
- special camera SDKs, including stereo: other special SDKs: FIREWIRE/1394, XIMEA/ARAVIS/GIGANETIX/PVAPI(GigE), UNICAP |
||||
- other: XINE, gphoto2, etc |
||||
*/ |
||||
static const struct VideoBackendInfo builtin_backends[] = |
||||
{ |
||||
#ifdef HAVE_FFMPEG |
||||
DECLARE_BACKEND(CAP_FFMPEG, "FFMPEG", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
||||
#endif |
||||
#ifdef HAVE_GSTREAMER |
||||
DECLARE_BACKEND(CAP_GSTREAMER, "GSTREAMER", MODE_CAPTURE_ALL | MODE_WRITER), |
||||
#endif |
||||
#ifdef HAVE_MFX // Media SDK
|
||||
DECLARE_BACKEND(CAP_INTEL_MFX, "INTEL_MFX", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
||||
#endif |
||||
|
||||
|
||||
// Apple platform
|
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
DECLARE_BACKEND(CAP_QT, "QUICKTIME", MODE_CAPTURE_ALL | MODE_WRITER), |
||||
#endif |
||||
#ifdef HAVE_AVFOUNDATION |
||||
DECLARE_BACKEND(CAP_AVFOUNDATION, "AVFOUNDATION", MODE_CAPTURE_ALL | MODE_WRITER), |
||||
#endif |
||||
|
||||
// Windows
|
||||
#ifdef WINRT_VIDEO |
||||
DECLARE_BACKEND(CAP_WINRT, "WINRT", MODE_CAPTURE_BY_FILENAME), |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
DECLARE_BACKEND(CAP_MSMF, "MSMF", MODE_CAPTURE_ALL | MODE_WRITER), |
||||
#endif |
||||
#ifdef HAVE_VFW |
||||
DECLARE_BACKEND(CAP_VFW, "VFW", MODE_CAPTURE_ALL | MODE_WRITER), |
||||
#endif |
||||
#ifdef HAVE_DSHOW |
||||
DECLARE_BACKEND(CAP_DSHOW, "DSHOW", MODE_CAPTURE_ALL), |
||||
#endif |
||||
|
||||
// Linux, some Unix
|
||||
#if defined HAVE_CAMV4L2 |
||||
DECLARE_BACKEND(CAP_V4L2, "V4L2", MODE_CAPTURE_ALL), |
||||
#elif defined HAVE_LIBV4L || defined HAVE_CAMV4L |
||||
DECLARE_BACKEND(CAP_V4L, "V4L", MODE_CAPTURE_ALL), |
||||
#endif |
||||
|
||||
|
||||
// RGB-D universal
|
||||
#ifdef HAVE_OPENNI |
||||
DECLARE_BACKEND(CAP_OPENNI, "OPENNI", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_OPENNI2 |
||||
DECLARE_BACKEND(CAP_OPENNI2, "OPENNI2", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_INTELPERC |
||||
DECLARE_BACKEND(CAP_INTELPERC, "INTEL_PERC", MODE_CAPTURE_ALL), |
||||
#elif defined(HAVE_LIBREALSENSE) |
||||
DECLARE_BACKEND(CAP_INTELPERC, "INTEL_REALSENSE", MODE_CAPTURE_BY_INDEX), |
||||
#endif |
||||
|
||||
// OpenCV file-based only
|
||||
DECLARE_BACKEND(CAP_IMAGES, "CV_IMAGES", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
||||
DECLARE_BACKEND(CAP_OPENCV_MJPEG, "CV_MJPEG", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
||||
|
||||
// special interfaces / stereo cameras / other SDKs
|
||||
#if defined(HAVE_DC1394_2) || defined(HAVE_DC1394) || defined(HAVE_CMU1394) |
||||
DECLARE_BACKEND(CAP_FIREWIRE, "FIREWIRE", MODE_CAPTURE_ALL), |
||||
#endif |
||||
// GigE
|
||||
#ifdef HAVE_PVAPI |
||||
DECLARE_BACKEND(CAP_PVAPI, "PVAPI", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_XIMEA |
||||
DECLARE_BACKEND(CAP_XIAPI, "XIMEA", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_GIGE_API |
||||
DECLARE_BACKEND(CAP_GIGANETIX, "GIGANETIX", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_ARAVIS_API |
||||
DECLARE_BACKEND(CAP_ARAVIS, "ARAVIS", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_UNICAP |
||||
DECLARE_BACKEND(CAP_UNICAP, "UNICAP", MODE_CAPTURE_BY_FILENAME), |
||||
#endif |
||||
|
||||
#ifdef HAVE_GPHOTO2 |
||||
DECLARE_BACKEND(CAP_GPHOTO2, "GPHOTO2", MODE_CAPTURE_ALL), |
||||
#endif |
||||
#ifdef HAVE_XINE |
||||
DECLARE_BACKEND(CAP_XINE, "XINE", MODE_CAPTURE_BY_FILENAME), |
||||
#endif |
||||
|
||||
// dropped backends: MIL, TYZX, Android
|
||||
}; |
||||
|
||||
bool sortByPriority(const VideoBackendInfo &lhs, const VideoBackendInfo &rhs) |
||||
{ |
||||
return lhs.priority > rhs.priority; |
||||
} |
||||
|
||||
/** @brief Manages list of enabled backends
|
||||
*/ |
||||
class VideoBackendRegistry |
||||
{ |
||||
protected: |
||||
std::vector<VideoBackendInfo> enabledBackends; |
||||
VideoBackendRegistry() |
||||
{ |
||||
const int N = sizeof(builtin_backends)/sizeof(builtin_backends[0]); |
||||
enabledBackends.assign(builtin_backends, builtin_backends + N); |
||||
for (int i = 0; i < N; i++) |
||||
{ |
||||
VideoBackendInfo& info = enabledBackends[i]; |
||||
info.priority = 1000 - i * 10; |
||||
} |
||||
CV_LOG_DEBUG(NULL, "VIDEOIO: Builtin backends(" << N << "): " << dumpBackends()); |
||||
if (readPrioritySettings()) |
||||
{ |
||||
CV_LOG_INFO(NULL, "VIDEOIO: Updated backends priorities: " << dumpBackends()); |
||||
} |
||||
int enabled = 0; |
||||
for (int i = 0; i < N; i++) |
||||
{ |
||||
VideoBackendInfo& info = enabledBackends[enabled]; |
||||
if (enabled != i) |
||||
info = enabledBackends[i]; |
||||
size_t param_priority = utils::getConfigurationParameterSizeT(cv::format("OPENCV_VIDEOIO_PRIORITY_%s", info.name).c_str(), (size_t)info.priority); |
||||
CV_Assert(param_priority == (size_t)(int)param_priority); // overflow check
|
||||
if (param_priority > 0) |
||||
{ |
||||
info.priority = (int)param_priority; |
||||
enabled++; |
||||
} |
||||
else |
||||
{ |
||||
CV_LOG_INFO(NULL, "VIDEOIO: Disable backend: " << info.name); |
||||
} |
||||
} |
||||
enabledBackends.resize(enabled); |
||||
CV_LOG_DEBUG(NULL, "VIDEOIO: Available backends(" << enabled << "): " << dumpBackends()); |
||||
std::sort(enabledBackends.begin(), enabledBackends.end(), sortByPriority); |
||||
CV_LOG_INFO(NULL, "VIDEOIO: Enabled backends(" << enabled << ", sorted by priority): " << dumpBackends()); |
||||
} |
||||
|
||||
static std::vector<std::string> tokenize_string(const std::string& input, char token) |
||||
{ |
||||
std::vector<std::string> result; |
||||
std::string::size_type prev_pos = 0, pos = 0; |
||||
while((pos = input.find(token, pos)) != std::string::npos) |
||||
{ |
||||
result.push_back(input.substr(prev_pos, pos-prev_pos)); |
||||
prev_pos = ++pos; |
||||
} |
||||
result.push_back(input.substr(prev_pos)); |
||||
return result; |
||||
} |
||||
bool readPrioritySettings() |
||||
{ |
||||
bool hasChanges = false; |
||||
cv::String prioritized_backends = utils::getConfigurationParameterString("OPENCV_VIDEOIO_PRIORITY_LIST", NULL); |
||||
if (prioritized_backends.empty()) |
||||
return hasChanges; |
||||
CV_LOG_INFO(NULL, "VIDEOIO: Configured priority list (OPENCV_VIDEOIO_PRIORITY_LIST): " << prioritized_backends); |
||||
const std::vector<std::string> names = tokenize_string(prioritized_backends, ','); |
||||
for (size_t i = 0; i < names.size(); i++) |
||||
{ |
||||
const std::string& name = names[i]; |
||||
bool found = false; |
||||
for (size_t k = 0; k < enabledBackends.size(); k++) |
||||
{ |
||||
VideoBackendInfo& info = enabledBackends[k]; |
||||
if (name == info.name) |
||||
{ |
||||
info.priority = (int)(100000 + (names.size() - i) * 1000); |
||||
CV_LOG_DEBUG(NULL, "VIDEOIO: New backend priority: '" << name << "' => " << info.priority); |
||||
found = true; |
||||
hasChanges = true; |
||||
break; |
||||
} |
||||
} |
||||
if (!found) |
||||
{ |
||||
CV_LOG_WARNING(NULL, "VIDEOIO: Can't prioritize unknown/unavailable backend: '" << name << "'"); |
||||
} |
||||
} |
||||
return hasChanges; |
||||
} |
||||
public: |
||||
std::string dumpBackends() const |
||||
{ |
||||
std::ostringstream os; |
||||
for (size_t i = 0; i < enabledBackends.size(); i++) |
||||
{ |
||||
if (i > 0) os << "; "; |
||||
const VideoBackendInfo& info = enabledBackends[i]; |
||||
os << info.name << '(' << info.priority << ')'; |
||||
} |
||||
return os.str(); |
||||
} |
||||
|
||||
static VideoBackendRegistry& getInstance() |
||||
{ |
||||
static VideoBackendRegistry g_instance; |
||||
return g_instance; |
||||
} |
||||
|
||||
inline std::vector<VideoBackendInfo> getAvailableBackends_CaptureByIndex() const |
||||
{ |
||||
std::vector<VideoBackendInfo> result; |
||||
for (size_t i = 0; i < enabledBackends.size(); i++) |
||||
{ |
||||
const VideoBackendInfo& info = enabledBackends[i]; |
||||
if (info.mode & MODE_CAPTURE_BY_INDEX) |
||||
result.push_back(info); |
||||
} |
||||
return result; |
||||
} |
||||
inline std::vector<VideoBackendInfo> getAvailableBackends_CaptureByFilename() const |
||||
{ |
||||
std::vector<VideoBackendInfo> result; |
||||
for (size_t i = 0; i < enabledBackends.size(); i++) |
||||
{ |
||||
const VideoBackendInfo& info = enabledBackends[i]; |
||||
if (info.mode & MODE_CAPTURE_BY_FILENAME) |
||||
result.push_back(info); |
||||
} |
||||
return result; |
||||
} |
||||
inline std::vector<VideoBackendInfo> getAvailableBackends_Writer() const |
||||
{ |
||||
std::vector<VideoBackendInfo> result; |
||||
for (size_t i = 0; i < enabledBackends.size(); i++) |
||||
{ |
||||
const VideoBackendInfo& info = enabledBackends[i]; |
||||
if (info.mode & MODE_WRITER) |
||||
result.push_back(info); |
||||
} |
||||
return result; |
||||
} |
||||
}; |
||||
|
||||
} // namespace
|
||||
|
||||
namespace videoio_registry { |
||||
|
||||
std::vector<VideoBackendInfo> getAvailableBackends_CaptureByIndex() |
||||
{ |
||||
const std::vector<VideoBackendInfo> result = VideoBackendRegistry::getInstance().getAvailableBackends_CaptureByIndex(); |
||||
return result; |
||||
} |
||||
std::vector<VideoBackendInfo> getAvailableBackends_CaptureByFilename() |
||||
{ |
||||
const std::vector<VideoBackendInfo> result = VideoBackendRegistry::getInstance().getAvailableBackends_CaptureByFilename(); |
||||
return result; |
||||
} |
||||
std::vector<VideoBackendInfo> getAvailableBackends_Writer() |
||||
{ |
||||
const std::vector<VideoBackendInfo> result = VideoBackendRegistry::getInstance().getAvailableBackends_Writer(); |
||||
return result; |
||||
} |
||||
|
||||
} // namespace registry
|
||||
|
||||
#define TRY_OPEN(backend_func) \ |
||||
{ \
|
||||
try { \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOCAPTURE_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
|
||||
icap = backend_func; \
|
||||
if (param_VIDEOIO_DEBUG ||param_VIDEOCAPTURE_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p isOpened=%d ...\n", \
|
||||
#backend_func, icap.empty() ? NULL : icap.get(), icap.empty() ? -1: icap->isOpened())); \ |
||||
} catch(const cv::Exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch (const std::exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
#define TRY_OPEN_LEGACY(backend_func) \ |
||||
{ \
|
||||
try { \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOCAPTURE_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
|
||||
capture = backend_func; \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOCAPTURE_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p ...\n", #backend_func, capture)); \
|
||||
} catch(const cv::Exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch (const std::exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
|
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, int index) |
||||
{ |
||||
CV_UNUSED(capture); CV_UNUSED(icap); |
||||
switch (api) |
||||
{ |
||||
default: |
||||
CV_LOG_WARNING(NULL, "VideoCapture(index=" << index << ") was built without support of requested backendID=" << (int)api); |
||||
break; |
||||
#ifdef HAVE_GSTREAMER |
||||
case CAP_GSTREAMER: |
||||
TRY_OPEN(createGStreamerCapture(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
case CAP_MSMF: |
||||
TRY_OPEN(cvCreateCapture_MSMF(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_DSHOW |
||||
case CAP_DSHOW: |
||||
TRY_OPEN(makePtr<VideoCapture_DShow>(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_INTELPERC |
||||
case CAP_INTELPERC: |
||||
TRY_OPEN(makePtr<VideoCapture_IntelPerC>()); |
||||
break; |
||||
#elif defined(HAVE_LIBREALSENSE) |
||||
case CAP_INTELPERC: |
||||
TRY_OPEN(makePtr<VideoCapture_LibRealsense>(index)); |
||||
break; |
||||
#endif |
||||
#ifdef WINRT_VIDEO |
||||
case CAP_WINRT: |
||||
TRY_OPEN(makePtr<cv::VideoCapture_WinRT>(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GPHOTO2 |
||||
case CAP_GPHOTO2: |
||||
TRY_OPEN(createGPhoto2Capture(index)); |
||||
break; |
||||
#endif |
||||
case CAP_VFW: // or CAP_V4L or CAP_V4L2
|
||||
#ifdef HAVE_VFW |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_VFW(index)) |
||||
#endif |
||||
#if defined HAVE_LIBV4L || defined HAVE_CAMV4L || defined HAVE_CAMV4L2 || defined HAVE_VIDEOIO |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_V4L(index)) |
||||
#endif |
||||
break; |
||||
case CAP_FIREWIRE: |
||||
#ifdef HAVE_DC1394_2 |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_DC1394_2(index)) |
||||
#endif |
||||
#ifdef HAVE_DC1394 |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_DC1394(index)) |
||||
#endif |
||||
#ifdef HAVE_CMU1394 |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_CMU(index)) |
||||
#endif |
||||
break; // CAP_FIREWIRE
|
||||
#ifdef HAVE_MIL |
||||
case CAP_MIL: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_MIL(index)) |
||||
break; |
||||
#endif |
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
case CAP_QT: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_QT(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_UNICAP |
||||
case CAP_UNICAP: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_Unicap(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_PVAPI |
||||
case CAP_PVAPI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_PvAPI(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_OPENNI |
||||
case CAP_OPENNI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_OpenNI(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_OPENNI2 |
||||
case CAP_OPENNI2: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_OpenNI2(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_XIMEA |
||||
case CAP_XIAPI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_XIMEA(index)) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_AVFOUNDATION |
||||
case CAP_AVFOUNDATION: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_AVFoundation(index)) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_GIGE_API |
||||
case CAP_GIGANETIX: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_Giganetix(index)) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_ARAVIS_API |
||||
case CAP_ARAVIS: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_Aravis(index)) |
||||
break; |
||||
#endif |
||||
} // switch (api)
|
||||
} |
||||
|
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, const cv::String& filename) |
||||
{ |
||||
switch (api) |
||||
{ |
||||
default: |
||||
CV_LOG_WARNING(NULL, "VideoCapture(filename=" << filename << ") was built without support of requested backendID=" << (int)api); |
||||
break; |
||||
#if defined HAVE_LIBV4L || defined HAVE_CAMV4L || defined HAVE_CAMV4L2 || defined HAVE_VIDEOIO |
||||
case CAP_V4L: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_V4L(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_VFW |
||||
case CAP_VFW: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_VFW(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
case CAP_QT: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_QT(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_AVFOUNDATION |
||||
case CAP_AVFOUNDATION: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_AVFoundation(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_OPENNI |
||||
case CAP_OPENNI: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_OpenNI(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_OPENNI2 |
||||
case CAP_OPENNI2: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_OpenNI2(filename.c_str())) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_XIMEA |
||||
case CAP_XIAPI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_XIMEA(filename.c_str())) |
||||
break; |
||||
#endif |
||||
case CAP_IMAGES: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_Images(filename.c_str())) |
||||
break; |
||||
#ifdef HAVE_FFMPEG |
||||
case CAP_FFMPEG: |
||||
TRY_OPEN(cvCreateFileCapture_FFMPEG_proxy(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GSTREAMER |
||||
case CAP_GSTREAMER: |
||||
TRY_OPEN(createGStreamerCapture(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_XINE |
||||
case CAP_XINE: |
||||
TRY_OPEN(createXINECapture(filename.c_str())) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
case CAP_MSMF: |
||||
TRY_OPEN(cvCreateCapture_MSMF(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GPHOTO2 |
||||
case CAP_GPHOTO2: |
||||
TRY_OPEN(createGPhoto2Capture(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MFX |
||||
case CAP_INTEL_MFX: |
||||
TRY_OPEN(makePtr<VideoCapture_IntelMFX>(filename)) |
||||
break; |
||||
#endif |
||||
case CAP_OPENCV_MJPEG: |
||||
TRY_OPEN(createMotionJpegCapture(filename)) |
||||
break; |
||||
} // switch
|
||||
} |
||||
|
||||
|
||||
void VideoWriter_create(CvVideoWriter*& writer, Ptr<IVideoWriter>& iwriter, VideoCaptureAPIs api, |
||||
const String& filename, int fourcc, double fps, const Size& frameSize, bool isColor) |
||||
{ |
||||
#define CREATE_WRITER(backend_func) \ |
||||
{ \
|
||||
try { \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
|
||||
iwriter = backend_func; \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p isOpened=%d...\n", #backend_func, iwriter.empty() ? NULL : iwriter.get(), iwriter.empty() ? iwriter->isOpened() : -1)); \
|
||||
} catch(const cv::Exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch (const std::exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
#define CREATE_WRITER_LEGACY(backend_func) \ |
||||
{ \
|
||||
try { \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
|
||||
writer = backend_func; \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p...\n", #backend_func, writer)); \
|
||||
} catch(const cv::Exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch (const std::exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
switch (api) |
||||
{ |
||||
default: |
||||
CV_LOG_ERROR(NULL, "Unknown VideoWriter backend (check getBuildInformation()): " << (int)api); |
||||
break; |
||||
#ifdef HAVE_FFMPEG |
||||
case CAP_FFMPEG: |
||||
CREATE_WRITER(cvCreateVideoWriter_FFMPEG_proxy(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
case CAP_MSMF: |
||||
CREATE_WRITER(cvCreateVideoWriter_MSMF(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MFX |
||||
case CAP_INTEL_MFX: |
||||
CREATE_WRITER(VideoWriter_IntelMFX::create(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_VFW |
||||
case CAP_VFW: |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_VFW(filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_AVFOUNDATION |
||||
case CAP_AVFOUNDATION: |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_AVFoundation(filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
case(CAP_QT): |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_QT(filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GSTREAMER |
||||
case CAP_GSTREAMER: |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_GStreamer (filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
case CAP_OPENCV_MJPEG: |
||||
CREATE_WRITER(createMotionJpegWriter(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
case CAP_IMAGES: |
||||
if(!fourcc || !fps) |
||||
{ |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_Images(filename.c_str())); |
||||
} |
||||
break; |
||||
} // switch(api)
|
||||
} |
||||
|
||||
|
||||
} // namespace
|
||||
@ -0,0 +1,43 @@ |
||||
// 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_VIDEOIO_REGISTRY_HPP__ |
||||
#define __OPENCV_VIDEOIO_VIDEOIO_REGISTRY_HPP__ |
||||
|
||||
namespace cv |
||||
{ |
||||
|
||||
/** Capabilities bitmask */ |
||||
enum BackendMode { |
||||
MODE_CAPTURE_BY_INDEX = 1 << 0, //!< device index
|
||||
MODE_CAPTURE_BY_FILENAME = 1 << 1, //!< filename or device path (v4l2)
|
||||
MODE_WRITER = 1 << 4, //!< writer
|
||||
|
||||
MODE_CAPTURE_ALL = MODE_CAPTURE_BY_INDEX + MODE_CAPTURE_BY_FILENAME, |
||||
}; |
||||
|
||||
struct VideoBackendInfo { |
||||
VideoCaptureAPIs id; |
||||
BackendMode mode; |
||||
int priority; // 1000-<index*10> - default builtin priority
|
||||
// 0 - disabled (OPENCV_VIDEOIO_PRIORITY_<name> = 0)
|
||||
// >10000 - prioritized list (OPENCV_VIDEOIO_PRIORITY_LIST)
|
||||
const char* name; |
||||
}; |
||||
|
||||
namespace videoio_registry { |
||||
|
||||
std::vector<VideoBackendInfo> getAvailableBackends_CaptureByIndex(); |
||||
std::vector<VideoBackendInfo> getAvailableBackends_CaptureByFilename(); |
||||
std::vector<VideoBackendInfo> getAvailableBackends_Writer(); |
||||
|
||||
} // namespace
|
||||
|
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, int index); |
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, const cv::String& filename); |
||||
void VideoWriter_create(CvVideoWriter*& writer, Ptr<IVideoWriter>& iwriter, VideoCaptureAPIs api, |
||||
const String& filename, int fourcc, double fps, const Size& frameSize, bool isColor); |
||||
|
||||
} // namespace
|
||||
#endif // __OPENCV_VIDEOIO_VIDEOIO_REGISTRY_HPP__
|
||||
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