Method and system for playing low-resolution video of mobile device

Abstract

The invention discloses a method and system for playing a low-resolution video of a mobile device. The method comprises the following steps: encoding video signals of an original video file by a CPU (Central Processing Unit) and transmitting encoded signals to a display screen driver IC (Integrated Circuit), wherein the data of the encoded signals and the data of the video signals of the original video file are equivalent to each other; decoding the received signals through the display screen driver IC and amplifying the decoded signals to form video signals suitable for the resolution of a display screen; and through the display screen driver IC, transmitting the amplified video signals to the display screen to play. The system comprises a video encoding-transmitting module, a video decoding-amplifying module and a video playing module. According to the method and the system, the data equivalent to the data of the low-resolution video file are transmitted rather than being amplified, so that the roles of lowering the overall power consumption and the signal radiation are played.

Description

technical field [0001] The invention relates to a video playing method, in particular to a low-resolution video playing method of a mobile device and a mobile terminal. It belongs to the technical field of mobile device video playback. Background technique [0002] With the development of smart handheld devices (mobile phones, tablet computers, etc.), the resolution of their display screens is getting higher and higher, and 720P, 1280P and even higher-resolution displays are gradually appearing. The application of high-resolution displays means that CPU The terminal must transmit a lot of data to the display screen, which brings about the problem of increased CPU power consumption and reduced battery life. [0003] At present, there are relatively few high-definition video resources on the Internet. The resolution of video resources is usually concentrated in 800x480, 640x400 or lower resolutions. The proportion of video resources in these resolutions is much higher than th...

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Problems solved by technology

[0003] At present, there are relatively few high-definition video resources on the Internet. The resolution of video resources is usually concentrated in 800x480, 640x400 or lower resolutions. The proportion of video resources in these resolutions is much higher than that of 1280x720 and 1920x1080. High-definition video with the same resolution, so when playing low-resolution video (the video resolution is lower than the hardware resolution of the display), the CPU expands and packages the video content according to the resolution of the display hardware, such as figure 1 As shown, taking a video with a resolution of 640x400 and a display screen with a resolution of 1920x1080 as an example, the CPU expands and packages the video content according to the resolution of the display hardware at 1920x1080, and then transmits it to the display driver IC for decoding, and then transmits it to the display screen Playing, so that the rate of CPU transmission to the display driver IC is too high, the CPU load is too large, but the data actually used for display is far lower than the expanded and packaged data, and most of the transmitted data is redundant data , wastes power

[0004] Chinese patent application No. 201110432337.6 discloses "a low-power playback method and device for mobile devices". Its technical feature is to use one thread to classify and analyze audio data and perform video decoding operations, and increase the number of decoded video buffer frames. Quantity, the dynamic refresh rate is used to make the video rendering module complete the frame buffer and the timer refresh rate is synchronously matched, which solves the problems of the existing technology that there are too many threads and the system consumes a lot of power due to software scaling using the CPU, but it does not solve the above technical problems technical inspiration

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