openbmc/obmc-ikvm/ikvm_video.hpp

13  * @class Video
14  * @brief Sets up the V4L2 video device and performs read operations
16 class Video  class
20      * @brief Constructs Video object
22      * @param[in] p     - Path to the V4L2 video device
24      * @param[in] fr    - desired frame rate of the video
26     Video(const std::string& p, Input& input, int fr = 30, int sub = 0);
27     ~Video();
28     Video(const Video&) = default;
29     Video& operator=(const Video&) = default;
30     Video(Video&&) = default;
31     Video& operator=(Video&&) = default;
34      * @brief Gets the video frame data
36      * @return Pointer to the video frame data
39     /* @brief Performs read to grab latest video frame */
42      * @brief Gets whether or not the video frame needs to be resized
49     /* @brief Starts streaming from the video device */
51     /* @brief Stops streaming from the video device */
53     /* @brief Restarts streaming from the video device */
61      * @brief Gets the desired video frame rate in frames per second
70      * @brief Gets the size of the video frame data
72      * @return Value of the size of the video frame data in bytes
79      * @brief Gets the height of the video frame
81      * @return Value of the height of video frame in pixels
88      * @brief Gets the pixel format  of the video frame
90      * @return Value of the pixel format of video frame */
96      * @brief Gets the width of the video frame
98      * @return Value of the width of video frame in pixels
105      * @brief Gets the subsampling of the video frame
107      * @return Value of the subsampling of video frame, 1:420/0:444
114      * @brief Sets the subsampling of the video frame
116      * @return Value of the subsampling of video frame, 1:420/0:444
158     /* @brief File descriptor for the V4L2 video device */
160     /* @brief Desired frame rate of video stream in frames per second */
162     /* @brief Buffer index for the last video frame */
164     /* @brief Height in pixels of the video frame */
166     /* @brief Width in pixels of the video frame */
172     /* @brief Path to the V4L2 video device */