graphics/opencv: Update to 3.4.1.

== OpenCV 3.4.1

dnn
- Added support for quantized TensorFlow networks
- OpenCV is now able to use Intel DL inference engine as DNN
  acceleration backend
- Added AVX-512 acceleration to the performance-critical kernels, such
  as convolution and fully-connected layers
- SSD-based models trained and retrained in TensorFlow Object
  Detection API can be easier imported by a single invocation of
  python script making a text graph representation
- Performance of pthreads backend of cv::parallel_for_() has been
  greatly improved on many core machines
- OpenCL backend has been expanded to cover more layers
- Several bugs in various layers have been fixed

OpenCL
- On-disk caching of precompiled OpenCL kernels has been fixed to
  comply with OpenCL standard
- Certain cases with UMat deadlock when copying UMats in different
  threads has been fixed

Android
- Supported Android NDK16
- Added build.gradle into OpenCV 4 Android SDK
- Added initial support of Camera2 API via JavaCamera2View interface

C++
- C++11: added support of multi-dimentional cv::Mat creation via C++
  initializers lists
- C++17: OpenCV source code and tests comply C++17 standard

Misc
- opencv_contrib: added GMS matching
- opencv_contrib: added CSR-DCF tracker
- opencv_contrib: several improvements in OVIS module


== OpenCV 3.4

- New background subtraction algorithms have been integrated.

dnn
- Added faster R-CNN support
- Javascript bindings have been extended to cover DNN module
- DNN has been further accelerated for iGPU using OpenCL

OpenCL
- On-disk caching of precompiled OpenCL kernels has been finally
  implemented
- It's now possible to load and run pre-compiled OpenCL kernels via
  T-API
- Bit-exact 8-bit and 16-bit resize has been implemented

2 files changed, 10 insertions, 25 deletions

diff --git a/graphics/opencv/patches/patch-modules_core_src_parallel__pthreads.cpp b/graphics/opencv/patches/patch-modules_core_src_parallel__pthreads.cpp
deleted file mode 100644
index 395ec27d7e2..00000000000
--- a/graphics/opencv/patches/patch-modules_core_src_parallel__pthreads.cpp
+++ /dev/null
@@ -1,17 +0,0 @@
-$NetBSD: patch-modules_core_src_parallel__pthreads.cpp,v 1.3 2017/09/04 15:23:49 fhajny Exp $
-
-PTHREAD_RECURSIVE_MUTEX_INITIALIZER doesn't exist on SunOS.
-
---- modules/core/src/parallel_pthreads.cpp.orig	2017-08-03 23:58:23.000000000 +0000
-+++ modules/core/src/parallel_pthreads.cpp
-@@ -220,6 +220,10 @@ private:
-     ThreadManagerPoolState m_pool_state;
- };
- 
-+#ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER
-+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
-+#endif
-+
- const char ThreadManager::m_env_name[] = "OPENCV_FOR_THREADS_NUM";
- 
- ForThread::~ForThread()
diff --git a/graphics/opencv/patches/patch-modules_videoio_src_cap__v4l.cpp b/graphics/opencv/patches/patch-modules_videoio_src_cap__v4l.cpp
index 3c2dcee6af3..8bcadcf581c 100644
--- a/graphics/opencv/patches/patch-modules_videoio_src_cap__v4l.cpp
+++ b/graphics/opencv/patches/patch-modules_videoio_src_cap__v4l.cpp
@@ -1,8 +1,8 @@
-$NetBSD: patch-modules_videoio_src_cap__v4l.cpp,v 1.3 2017/09/04 15:23:49 fhajny Exp $
+$NetBSD: patch-modules_videoio_src_cap__v4l.cpp,v 1.4 2018/03/02 16:24:21 fhajny Exp $
 
 Conditionalize settings not available in NetBSD's v4l2 emulation.
 
---- modules/videoio/src/cap_v4l.cpp.orig	2017-08-03 23:58:23.000000000 +0000
+--- modules/videoio/src/cap_v4l.cpp.orig	2018-02-23 08:38:33.000000000 +0000
 +++ modules/videoio/src/cap_v4l.cpp
 @@ -216,6 +216,7 @@ make & enjoy!
  #include <fcntl.h>
@@ -12,18 +12,20 @@ Conditionalize settings not available in NetBSD's v4l2 emulation.
  #include <sys/types.h>
  #include <sys/mman.h>
  
-@@ -470,9 +471,13 @@ static int autosetup_capture_mode_v4l2(C
+@@ -466,13 +467,17 @@ static int autosetup_capture_mode_v4l2(C
+             V4L2_PIX_FMT_YUYV,
              V4L2_PIX_FMT_UYVY,
-             V4L2_PIX_FMT_SN9C10X,
              V4L2_PIX_FMT_SBGGR8,
 +#ifdef V4L2_PIX_FMT_SGBRG8
              V4L2_PIX_FMT_SGBRG8,
--            V4L2_PIX_FMT_RGB24,
--            V4L2_PIX_FMT_Y16
 +#endif
-+            V4L2_PIX_FMT_RGB24
+             V4L2_PIX_FMT_SN9C10X,
+ #ifdef HAVE_JPEG
+             V4L2_PIX_FMT_MJPEG,
+             V4L2_PIX_FMT_JPEG,
+ #endif
 +#ifdef V4L2_PIX_FMT_Y16
-+            ,V4L2_PIX_FMT_Y16
+             V4L2_PIX_FMT_Y16
 +#endif
      };