Method and terminal for video processing

摘要

The invention concerns a method and a terminal for video processing, including: receiving an image pre-capture instruction from a user when a real-time video image receiving terminal plays a real-time video picture, wherein while the real-time video image receiving terminal plays a real-time video picture, real-time video data is stored into an cache area of a memory of the terminal; and controlling, in response to the image pre-capture instruction from the user, the terminal to suspend playing of the real-time picture and to play back the video pictures stored in the cache area of the memory of the terminal, wherein the memory is configured as two cache areas, namely, an odd-number cache area and an even-number cache area; the data are stored into the odd-number cache area and the even-number cache area, characterized in that: in response to the image pre-capture instruction from the user, a digital processor of the terminal stops transmitting real-time image data to a display but reads data out from the cache areas; data in the two cache areas are updated alternatively; in a first clock period, real-time data is stored into the odd-number cache area, while data is read out from the highest bit address of the odd-number cache area; in a second clock period, real-time data is stored into the even-number cache area while the odd-number cache area is not updated; in a third clock period, real-time data is stored into the odd-number cache area while the even-number cache area is not updated, and data is read out from the highest bit address of the even-number cache area; in a fourth clock period, real-time data is stored into the even-number cache area; and so on; data of one frame is transmitted to a multimedia processor for two continuous clock periods