third_party/opencv
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

videoio(docs): fixes

Browse Source
This commit is contained in:
Alexander Alekhin 2021-03-07 04:26:49 +00:00
parent 04a9ff88d8
commit 85009800b3
4 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
doc/tutorials/videoio/video-write/video_write.markdown
View File

@ -59,7 +59,7 @@ extension, its first version. A direct limitation of this is that you cannot sav
larger than 2 GB. Furthermore you can only create and expand a single video track inside the
container. No audio or other track editing support here. Nevertheless, any video codec present on
your system might work. If you encounter some of these limitations you will need to look into more
specialized video writing libraries such as *FFMpeg* or codecs as *HuffYUV*, *CorePNG* and *LCL*. As
specialized video writing libraries such as *FFmpeg* or codecs as *HuffYUV*, *CorePNG* and *LCL*. As
an alternative, create the video track with OpenCV and expand it with sound tracks or convert it to
other formats by using video manipulation programs such as *VirtualDub* or *AviSynth*.

4
modules/videoio/doc/videoio_overview.markdown
View File

@ -15,7 +15,7 @@ I/O APIs used as backend.
![Video I/O with OpenCV](pics/videoio_overview.svg)
Some backends such as (DSHOW) Direct Show, Video For Windows (VFW), Microsoft Media Foundation (MSMF),
Some backends such as Direct Show (DSHOW), Video For Windows (VFW), Microsoft Media Foundation (MSMF),
Video 4 Linux (V4L), etc... are interfaces to the video I/O library provided by the operating system.
Some others backends like OpenNI2 for Kinect, Intel Perceptual Computing SDK, GStreamer,
@ -87,7 +87,7 @@ The FFmpeg library
OpenCV can use the FFmpeg library (http://ffmpeg.org/) as backend to record, convert and stream audio and video.
FFmpeg is a complete, cross-reference solution. If you enable FFmpeg while configuring OpenCV than
CMake will download and install the binaries in `OPENCV_SOURCE_CODE/3rdparty/ffmpeg/`. To use
FFmpeg at runtime, you must deploy the FFMepg binaries with your application.
FFmpeg at runtime, you must deploy the FFmpeg binaries with your application.
@note FFmpeg is licensed under the GNU Lesser General Public License (LGPL) version 2.1 or later.
See `OPENCV_SOURCE_CODE/3rdparty/ffmpeg/readme.txt` and http://ffmpeg.org/legal.html for details and

6
modules/videoio/include/opencv2/videoio.hpp
View File

@ -500,7 +500,6 @@ enum { CAP_PROP_XI_DOWNSAMPLING = 400, //!< Chan
//! @} XIMEA
/** @name AVFoundation framework for iOS
OS X Lion will have the same API
@{
*/
@ -512,6 +511,9 @@ enum { CAP_PROP_IOS_DEVICE_FOCUS = 9001,
CAP_PROP_IOS_DEVICE_TORCH = 9005
};
//! @} AVFoundation framework for iOS
/** @name Smartek Giganetix GigEVisionSDK
@{
*/
@ -990,8 +992,10 @@ protected:
Size frameSize, bool isColor = true);
};
//! @cond IGNORED
template<> CV_EXPORTS void DefaultDeleter<CvCapture>::operator ()(CvCapture* obj) const;
template<> CV_EXPORTS void DefaultDeleter<CvVideoWriter>::operator ()(CvVideoWriter* obj) const;
//! @endcond IGNORED
//! @} videoio

2
samples/cpp/videocapture_gstreamer_pipeline.cpp
View File

@ -223,7 +223,7 @@ inline Ptr<VideoWriter> createWriter(const string &backend, const string &file_n
}
else if (backend == "ffmpeg")
{
cout << "Created FFMpeg writer ( " << file_name << ", FPS=" << fps << ", Size=" << sz << " )" << endl;
cout << "Created FFmpeg writer ( " << file_name << ", FPS=" << fps << ", Size=" << sz << " )" << endl;
return makePtr<VideoWriter>(file_name, CAP_FFMPEG, getValue(fourccByCodec(), codec, "Invalid codec"), fps, sz, true);
}
return Ptr<VideoWriter>();