Method of automatically scaling video picture
A video playback and video technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of incompatible screen size, low efficiency, cumbersome control and selection, etc., to achieve great technological advancement and practical value, Overcome limitations and enhance the effect of the viewing experience
Active Publication Date: 2017-11-21
SICHUAN CHANGHONG ELECTRIC CO LTD
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Problems solved by technology
[0002] The video playback function is one of the core functions of audio-visual consumer electronic devices. The viewing experience of video playback is closely related to the width, height, and ratio of the video screen display. How to ensure that users can obtain the best viewing screen size and ratio Woolen cloth? At present, the main technical means is to provide users with a visual screen size setting interface. Users can manually compare and try all screen size modes by manipulating the screen size setting interface, and then select the optimal screen from all screen size modes. Size mode for viewing, this technical method requires users to perform cumbersome manipulation and selection, the user experience is extremely poor, and the efficiency is low. Moreover, the types of screen size modes provided by the setting interface are limited, and the types of video sources are various. Due to the large variability, this technical method cannot be compatible with the screen size of all video sources, and has great technical limitations and application limitations.
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Embodiment
[0039] The embodiment provides a method for automatically scaling a video playing screen, which will be described in detail below.
[0040] The consumer electronic devices referred to in the embodiments include: smart TVs, smart phones, tablet computers, and smart projectors. The above consumer electronic devices are just examples, not exhaustive, including but not limited to the above-mentioned terminal devices.
[0041] as attached figure 1 As shown in the figure, it is the complete process of video image automatic zoom processing, which specifically includes the following steps:
[0042] The smart TV starts to play an online video program named "Weekend Cinema";
[0043] Step 1. After starting the "Weekend Cinema" program, first obtain the horizontal width value and vertical height value of the smart TV video playback display area, and make statistics in pixels. In this example, we select the entire screen of the smart TV It is the display area for video playback. The wid...
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The invention relates to the technical field of multimedia video playing, and discloses a method of automatically scaling a video picture in order to overcome the shortcoming that the video picture size is manually set through a setting interface at present. According to the scheme of the invention, the method includes the following steps: after video playing is started, acquiring the transverse width value and longitudinal height value of a video playing display area of a consumer electronic device and the transverse width value and longitudinal height value of a video source played currently; calculating a new resolution width value of the video; calculating the scale ratio based on the new resolution width value and the original height value of the video; carrying out equal-ratio calculation on the new video display width and height values according to the scale ratio to get final video display width and height values; and finally, displaying the video picture in the display area according to the final width and height values, and filling the uncovered part of the display area with a black edge. The method is suitable for video picture scaling.
Description
technical field [0001] The invention relates to the technical field of multimedia video playback, in particular to a method for automatically scaling video images. Background technique [0002] The video playback function is one of the core functions of audio-visual consumer electronic devices. The viewing experience of video playback is closely related to the width, height, and ratio of the video screen display. How to ensure that users can obtain the best viewing screen size and ratio Woolen cloth? At present, the main technical means is to provide users with a visual screen size setting interface. Users can manually compare and try all screen size modes by manipulating the screen size setting interface, and then select the optimal screen from all screen size modes. Size mode for viewing, this technical method requires users to perform cumbersome manipulation and selection, the user experience is extremely poor, and the efficiency is low. Moreover, the types of screen siz...
Claims
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Login to View More IPC IPC(8): H04N21/4402
CPCH04N21/440263
Inventor 梁应龙
Owner SICHUAN CHANGHONG ELECTRIC CO LTD