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Introduce HW_SAMPR_MIN_GE_22 macro

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Gives us the lowest HW sample rate that's >= 22KHz.

Needed because some targets that don't support 22K support 11K or 8K, so
HW_SAMPR_MIN will give us much lower quality than is acceptable.

Take advantage of this new macro in the SDL, MIDI, and MIKMOD plugins,
and implement a crude "fast enough" test to enable higher sample rates
on more capable targets.

Change-Id: I6ad38026fb3410c62da028e78512e027729bb851
This commit is contained in:
Solomon Peachy 2019-08-07 17:16:48 -04:00
parent a430e275dd
commit 5b23c9eb0a
4 changed files with 92 additions and 20 deletions
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6
apps/plugins/sdl/include/SDL_config_rockbox.h
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@ -47,11 +47,7 @@
#ifdef SIMULATOR
#define RB_SAMPR SAMPR_44
#else
#if HW_SAMPR_CAPS & SAMPR_CAP_22
#define RB_SAMPR SAMPR_22
#else
#define RB_SAMPR HW_SAMPR_MIN
#endif
#define RB_SAMPR HW_SAMPR_MIN_GE_22 /* Min HW rate at least 22KHz */
#endif
/* Enable the stub cdrom driver (src/cdrom/dummy/\*.c) */