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

A low-resolution, mobile device technology, applied to TV system components, TVs, color TVs, etc., can solve problems such as wasting power consumption, many threads, and increasing the number of video buffer frames, so as to reduce the power consumption of the whole machine, Reduce the effect of signal radiation

Inactive Publication Date: 2014-03-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

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Embodiment 1

[0032] Such as figure 2 As shown, this embodiment takes an original video with a resolution of 640x400 and a display screen with a resolution of 1920x1080 as an example. The mobile device in this embodiment includes a CPU, a display driver IC and a display screen. The low-resolution video playback of the mobile device method, including the following steps:

[0033] S1: encode the video signal of the 640x400 original video file by the CPU of the mobile device, and transmit the encoded signal to the display driver IC, wherein the encoded signal is equivalent to the data of the video signal of the 640x400 original video file;

[0034] S2: Decode the received signal through the display driver IC, amplify the decoded signal to form a video signal suitable for 1920x1080 resolution (that is, combine every adjacent pixel in the video signal into one pixel);

[0035] S3: Transmitting the amplified video signal to the display screen for playing through the display screen driver IC.

...

Embodiment 2

[0038] Such as image 3 As shown, this embodiment takes the original video with a resolution of 800x600 resolution and a display screen with a resolution of 1280x720 as an example. The mobile device in this embodiment includes a CPU, a display driver IC and a display screen. The low resolution of the mobile device The video playing method comprises the following steps:

[0039] S1: encode the video signal of the 800x600 original video file by the CPU of the mobile device, and transmit the encoded signal to the display driver IC, wherein the encoded signal is equivalent to the data of the video signal of the 800x600 original video file;

[0040] S2: Decode the received signal through the display driver IC, amplify the decoded signal to form a video signal suitable for 1280x720 resolution (that is, combine every adjacent pixel in the video signal into one pixel);

[0041] S3: Transmitting the amplified video signal to the display screen for playing through the display screen dr...

Embodiment 3

[0044] Such as Figure 4 As shown, the mobile device of this embodiment includes a CPU, a display driver IC and a display screen, and the low-resolution video playback system of the mobile device includes a video encoding transmission module, a video decoding amplification module, and a video playback module, and the video encoding transmission The module includes a writing unit, and the video decoding and enlarging module includes a setting unit, wherein:

[0045] The video coding transmission module encodes the video signal of the low-resolution original video file through the CPU, and transmits the encoded signal to the display driver IC, wherein the encoded signal is the same as the video signal of the low-resolution original video file. Data Peering of Signals;

[0046] The writing unit is used to write the resolution of the video in the header file of the video file when encoding;

[0047] The video decoding and amplification module is used to decode the received signa...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/917G11B20/10
Inventor 靳勇
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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