AN706-00040-2v0-E
90
Set false for audio play processing loop
condition.
4
Sampling
Sample decode data.
(audio_decode_upsample)
1
Set stop for audio stage.
Sampling results judgment
Successfully sampled
Others
Output buffer full
of sampling data?
Play start flag false?
Set true for play start flag.
No
Yes
RAW data buffer has vacancy
Set file read for audio stage.
Output buffer does not have sufficient vacancy
No
Yes
Stop
Stop audio play.
(AUDIO_DecodeStop)
Set false for audio play
processing loop condition.
Set initialization for audio stage.
Set false for audio play
processing loop condition.
Others
1
Start I
2
S by 48kHz.
(I
2
S_Start)
Is sampling rate
8k,12k,16k,24k,32k,48k?
Yes
Start I
2
S by 44.1kHz.
(I
2
S_Start)
No
Figure 65 AUDIO Task Processing Function Flow (4)
