Merge branch 'suppress.vs.error' into hunter-3.0.0

Author: ruslo

3rdparty/ffmpeg/.gitignore

@@ -0,0 +1,3 @@
+downloads/
+*.dll
+ffmpeg_version.cmake

3rdparty/ffmpeg/build_win32.txt

@@ -0,0 +1,25 @@
+# Binary branch name: ffmpeg/master_20150703
+# Binaries were created for OpenCV: e379ea6ed60b0caad4d4e3eea096e9d850cb8c86
+set(FFMPEG_BINARIES_COMMIT "8aeefc4efe3215de89d8c7e114ae6f7a6091b8eb")
+set(FFMPEG_FILE_HASH_BIN32 "89c783eee1c47bfc733f08334ec2e31c")
+set(FFMPEG_FILE_HASH_BIN64 "35fe6ccdda6d7a04e9056b0d73b98e76")
+set(FFMPEG_FILE_HASH_CMAKE "8606f947a780071f8fcce8cbf39ceef5")
+
+set(FFMPEG_DOWNLOAD_URL ${OPENCV_FFMPEG_URL};$ENV{OPENCV_FFMPEG_URL};https://raw.githubusercontent.com/Itseez/opencv_3rdparty/${FFMPEG_BINARIES_COMMIT}/ffmpeg/)
+
+ocv_download(PACKAGE opencv_ffmpeg.dll
+             HASH ${FFMPEG_FILE_HASH_BIN32}
+             URL ${FFMPEG_DOWNLOAD_URL}
+             DESTINATION_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+ocv_download(PACKAGE opencv_ffmpeg_64.dll
+             HASH ${FFMPEG_FILE_HASH_BIN64}
+             URL ${FFMPEG_DOWNLOAD_URL}
+             DESTINATION_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+ocv_download(PACKAGE ffmpeg_version.cmake
+             HASH ${FFMPEG_FILE_HASH_CMAKE}
+             URL ${FFMPEG_DOWNLOAD_URL}
+             DESTINATION_DIR ${CMAKE_CURRENT_LIST_DIR})
+
+include(${CMAKE_CURRENT_LIST_DIR}/ffmpeg_version.cmake)

3rdparty/ffmpeg/ffmpeg.cmake

@@ -3,19 +3,19 @@
   he/she should use --enabled-shared configure flag and make sure that no GPL components are
   enabled (some notable examples are x264 (H264 encoder) and libac3 (Dolby AC3 audio codec)).
   See https://www.ffmpeg.org/legal.html for details.
-  
+
   If you want to play very safe and do not want to use FFMPEG at all, regardless of whether it's installed on
   your system or not, configure and build OpenCV using CMake with WITH_FFMPEG=OFF flag. OpenCV will then use
   AVFoundation (OSX), GStreamer (Linux) or other available backends supported by opencv_videoio module.
-  
+
   There is also our self-contained motion jpeg codec, which you can use without any worries.
   It handles CV_FOURCC('M', 'J', 'P', 'G') streams within an AVI container (".avi").
-  
+
 * On Windows OpenCV uses pre-built ffmpeg binaries, built with proper flags (without GPL components) and
   wrapped with simple, stable OpenCV-compatible API.
   The binaries are opencv_ffmpeg.dll (version for 32-bit Windows) and
   opencv_ffmpeg_64.dll (version for 64-bit Windows).
-  
+
   See build_win32.txt for the build instructions, if you want to rebuild opencv_ffmpeg*.dll from scratch.
 
   The pre-built opencv_ffmpeg*.dll is:
@@ -24,9 +24,15 @@
     If it succeeds, ffmpeg can be used to decode/encode videos;
     otherwise, other API is used.
 
+  FFMPEG build contains H264 encoder based on the OpenH264 library, that should be installed separatelly.
+  OpenH264 Video Codec provided by Cisco Systems, Inc.
+  See https://github.com/cisco/openh264/releases for details and OpenH264 license.
+  Downloaded binary file can be placed into global system path (System32 or SysWOW64) or near application binaries.
+  You can also specify location of binary file via OPENH264_LIBRARY_PATH environment variable.
+
   If LGPL/GPL software can not be supplied with your OpenCV-based product, simply exclude
   opencv_ffmpeg*.dll from your distribution; OpenCV will stay fully functional except for the ability to
   decode/encode videos using FFMPEG (though, it may still be able to do that using other API,
   such as Video for Windows, Windows Media Foundation or our self-contained motion jpeg codec).
-  
+
   See license.txt for the FFMPEG copyright notice and the licensing terms.