Method of synchronously playing image data and speech data in cell phone

Abstract

The method is used in an electronic control system composed of the key-press, the display, the video cameral, the DSP, the micro phone, the speaker, the audio codes, the MPU and the memory. It includes following steps: the video cameral module collects image data and at same time sends a instruction to the audio collection module for starting audio collection; in the process of collection the image data positioning label and the audio data positioning label are set at fixed time, when the collection of image is finished the video cameral module sends a instruction to the audio module for stopping the collection of audio, the image data and audio data are separately saved in the memory; the mobile phone display the audio and video file, the video camera reads the image and audio data from memory and sends them into the image buffer and audio buffer; the image is displayed on the display screen and the sound is outputted by the speaker through decode and D / A conversion.

Description

Technical field [0001] The invention belongs to the technical field of mobile communication terminals, and more specifically relates to a method for realizing synchronous playback of independent image data and independent sound data in the camera function of a mobile phone. Background technique [0002] Currently, mobile phones that support camera functions can be divided into two ways to play files. One method is to record and play continuous picture files through the camera and digital signal processor DSP chip to achieve the effect of animation. No sound data is collected and processed, so the file playback in this way is a silent animation. The other is for image files with standard formats for the stored files, such as MPEG4, WMV, WMA, WAV, etc., which can be achieved by directly calling standard library functions during playback, but the disadvantage of this method is that the storage space is large. The processing time is longer and the cost is higher. Summary of the inve...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the camera phone can only record and play continuous image files without sound effects, and provides a method for adding sound processing to the mobile phone and synchronously playing the image data and the sound data. Add any streaming media software package and hardware facilities, just need to process the continuous picture data and sound data during recording and playback. The algorithm flow is simple, easy to implement, less resource occupied, and lower cost

Images