rockbox/firmware/export/xduoolinux_codec.h

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#ifndef __XDUOOLINUX_CODEC__
#define __XDUOOLINUX_CODEC__
#define AUDIOHW_CAPS (LINEOUT_CAP | FILTER_ROLL_OFF_CAP)
AUDIOHW_SETTING(VOLUME, "dB", 1, 5, -102*10, 0, -30*10)
AUDIOHW_SETTING(FILTER_ROLL_OFF, "", 0, 1, 0, 4, 0)
#endif
// We want this, but the codec takes over a second to unmute!
//#define AUDIOHW_MUTE_ON_STOP
#if defined(XDUOO_X3II)
/* The AK4490 glitches when switching sample rates */
#define AUDIOHW_MUTE_ON_SRATE_CHANGE
#endif
#if defined(XDUOO_X20)
//#define AUDIOHW_NEEDS_INITIAL_UNMUTE
#endif
void audiohw_mute(int mute);
void xduoo_set_output(int ps);
int xduoo_get_outputs(void);