4.5 State transition
The MPEG handle holds the video operating status and audio operating status. The operating status changes as follows for both video and audio.
∙ Use the following functions to start and stop playback.
(a) Playback start function
- MPG_MvStart
- MPG_SpStart
(b) Playback stop function
- MPG_MvStop, MPG_MvStopVideo, MPG_MvStopAudio
- MPG_SpStop
Figure 4.3 MPEG handle state transition diagram
4.6 Hangup detection
Detecting hang-up is performed by calling the MPG_ResetHng function once and then calling the MPG_CheckHng function for each VSYNC.
If it hangs up, stop MPEG playback and start MPEG playback again. If this action does not recover, initialize it with the MPG_Init function.