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Doxygen tutorials: warnings cleared

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This commit is contained in:
Maksim Shabunin
2014-11-27 19:54:13 +03:00
parent 8375182e34
commit c5536534d8
64 changed files with 889 additions and 1659 deletions
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22
doc/tutorials/highgui/video-write/video_write.markdown
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@@ -5,8 +5,8 @@ Goal
----
Whenever you work with video feeds you may eventually want to save your image processing result in a
form of a new video file. For simple video outputs you can use the OpenCV built-in @ref
cv::VideoWriter class, designed for this.
form of a new video file. For simple video outputs you can use the OpenCV built-in @ref cv::VideoWriter
class, designed for this.
- How to create a video file with OpenCV
- What type of video files you can create with OpenCV
@@ -58,11 +58,15 @@ container. No audio or other track editing support here. Nevertheless, any video
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
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*. The
*VideoWriter* class ======================= The content written here builds on the assumption you
already read the @ref videoInputPSNRMSSIM tutorial and you know how to read video files. To create a
other formats by using video manipulation programs such as *VirtualDub* or *AviSynth*.
The *VideoWriter* class
-----------------------
The content written here builds on the assumption you
already read the @ref tutorial_video_input_psnr_ssim tutorial and you know how to read video files. To create a
video file you just need to create an instance of the @ref cv::VideoWriter class. You can specify
its properties either via parameters in the constructor or later on via the @ref cv::open function.
its properties either via parameters in the constructor or later on via the @ref cv::VideoWriter::open function.
Either way, the parameters are the same: 1. The name of the output that contains the container type
in its extension. At the moment only *avi* is supported. We construct this from the input file, add
to this the name of the channel to use, and finish it off with the container extension.
@@ -122,10 +126,10 @@ Size S = Size((int) inputVideo.get(CAP_PROP_FRAME_WIDTH), //Acquire input siz
(int) inputVideo.get(CAP_PROP_FRAME_HEIGHT));
outputVideo.open(NAME , ex, inputVideo.get(CAP_PROP_FPS),S, true);
@endcode
Afterwards, you use the @ref cv::isOpened() function to find out if the open operation succeeded or
Afterwards, you use the @ref cv::VideoWriter::isOpened() function to find out if the open operation succeeded or
not. The video file automatically closes when the *VideoWriter* object is destroyed. After you open
the object with success you can send the frames of the video in a sequential order by using the @ref
cv::write function of the class. Alternatively, you can use its overloaded operator \<\< :
the object with success you can send the frames of the video in a sequential order by using the
@ref cv::VideoWriter::write function of the class. Alternatively, you can use its overloaded operator \<\< :
@code{.cpp}
outputVideo.write(res); //or
outputVideo << res;