1
0
Fork 0
forked from len0rd/rockbox

audio: Add support for 192 and 176KHz playback

* SAMPR_CAPS_ALL -> SAMPR_CAPS_ALL_48/96/192
 * All targets claiming SAMPR_CAPS_ALL now get appropriate subset
 * No need to explicitly define HAVE_PLAY_FREQ
 * Rates that are a multiple of 44 or 48KHz can be used for playback

Inspired by a patch by Roman Stolyarov, but substantially rewritten by myself.

Change-Id: Iaca7363521b1cb9921e047ba1004d3cbe9c9c23e
This commit is contained in:
Solomon Peachy 2020-09-30 18:21:38 -04:00
parent c2c59457e1
commit 01650b8bc9
32 changed files with 161 additions and 80 deletions

View file

@ -34,21 +34,25 @@
/* These must be macros for comparison with SAMPR_CAP_* flags by the
preprocessor. Add samplerate index in descending order renumbering
the ones later in the list if any */
#define FREQ_96 0
#define FREQ_88 1
#define FREQ_64 2
#define FREQ_48 3
#define FREQ_44 4
#define FREQ_32 5
#define FREQ_24 6
#define FREQ_22 7
#define FREQ_16 8
#define FREQ_12 9
#define FREQ_11 10
#define FREQ_8 11
#define SAMPR_NUM_FREQ 12
#define FREQ_192 0
#define FREQ_176 1
#define FREQ_96 2
#define FREQ_88 3
#define FREQ_64 4
#define FREQ_48 5
#define FREQ_44 6
#define FREQ_32 7
#define FREQ_24 8
#define FREQ_22 9
#define FREQ_16 10
#define FREQ_12 11
#define FREQ_11 12
#define FREQ_8 13
#define SAMPR_NUM_FREQ 14
/* sample rate values in HZ */
#define SAMPR_192 192000
#define SAMPR_176 176400
#define SAMPR_96 96000
#define SAMPR_88 88200
#define SAMPR_64 64000
@ -63,6 +67,8 @@
#define SAMPR_8 8000
/* sample rate capability bits */
#define SAMPR_CAP_192 (1 << FREQ_192)
#define SAMPR_CAP_176 (1 << FREQ_176)
#define SAMPR_CAP_96 (1 << FREQ_96)
#define SAMPR_CAP_88 (1 << FREQ_88)
#define SAMPR_CAP_64 (1 << FREQ_64)
@ -75,13 +81,25 @@
#define SAMPR_CAP_12 (1 << FREQ_12)
#define SAMPR_CAP_11 (1 << FREQ_11)
#define SAMPR_CAP_8 (1 << FREQ_8)
#define SAMPR_CAP_ALL (SAMPR_CAP_96 | SAMPR_CAP_88 | SAMPR_CAP_64 | \
#define SAMPR_CAP_ALL_192 (SAMPR_CAP_192 | SAMPR_CAP_176 | \
SAMPR_CAP_96 | SAMPR_CAP_88 | SAMPR_CAP_64 | \
SAMPR_CAP_48 | SAMPR_CAP_44 | SAMPR_CAP_32 | \
SAMPR_CAP_24 | SAMPR_CAP_22 | SAMPR_CAP_16 | \
SAMPR_CAP_12 | SAMPR_CAP_11 | SAMPR_CAP_8)
#define SAMPR_CAP_ALL_96 (SAMPR_CAP_96 | SAMPR_CAP_88 | SAMPR_CAP_64 | \
SAMPR_CAP_48 | SAMPR_CAP_44 | SAMPR_CAP_32 | \
SAMPR_CAP_24 | SAMPR_CAP_22 | SAMPR_CAP_16 | \
SAMPR_CAP_12 | SAMPR_CAP_11 | SAMPR_CAP_8)
#define SAMPR_CAP_ALL_48 (SAMPR_CAP_48 | SAMPR_CAP_44 | SAMPR_CAP_32 | \
SAMPR_CAP_24 | SAMPR_CAP_22 | SAMPR_CAP_16 | \
SAMPR_CAP_12 | SAMPR_CAP_11 | SAMPR_CAP_8)
/* List of sampling rates that are good enough for most purposes. */
#define SAMPR_CAP_ALL_GE_22 (SAMPR_CAP_96 | SAMPR_CAP_88 | SAMPR_CAP_64 | \
#define SAMPR_CAP_ALL_GE_22 (SAMPR_CAP_192 | SAMPR_CAP_176 | \
SAMPR_CAP_96 | SAMPR_CAP_88 | SAMPR_CAP_64 | \
SAMPR_CAP_48 | SAMPR_CAP_44 | SAMPR_CAP_32 | \
SAMPR_CAP_24 | SAMPR_CAP_22)
@ -99,13 +117,29 @@ enum hw_freq_indexes
{
__HW_FREQ_START_INDEX = -1, /* Make sure first in list is 0 */
/* 96000 */
#if (HW_SAMPR_CAPS & SAMPR_CAP_96) /* Macros and enums for each FREQ: */
HW_FREQ_96, /* Index in enumeration */
#define HW_HAVE_96 /* Defined if this FREQ is defined */
#define HW_HAVE_96_(...) __VA_ARGS__ /* Output its parameters for this FREQ */
/* 192000 */
#if (HW_SAMPR_CAPS & SAMPR_CAP_192) /* Macros and enums for each FREQ: */
HW_FREQ_192, /* Index in enumeration */
#define HW_HAVE_192 /* Defined if this FREQ is defined */
#define HW_HAVE_192_(...) __VA_ARGS__ /* Output its parameters for this FREQ */
#else
#define HW_HAVE_96_(...) /* Discards its parameters for this FREQ */
#define HW_HAVE_192_(...) /* Discards its parameters for this FREQ */
#endif
/* 176400 */
#if (HW_SAMPR_CAPS & SAMPR_CAP_176)
HW_FREQ_176,
#define HW_HAVE_176
#define HW_HAVE_176_(...) __VA_ARGS__
#else
#define HW_HAVE_176_(...)
#endif
/* 96000 */
#if (HW_SAMPR_CAPS & SAMPR_CAP_96)
HW_FREQ_96,
#define HW_HAVE_96
#define HW_HAVE_96_(...) __VA_ARGS__
#else
#define HW_HAVE_96_(...)
#endif
/* 88200 */
#if (HW_SAMPR_CAPS & SAMPR_CAP_88)
@ -202,11 +236,22 @@ enum hw_freq_indexes
extern const unsigned long hw_freq_sampr[HW_NUM_FREQ];
#endif /* PCM_SAMPR_CONFIG_ONLY */
#if HW_SAMPR_CAPS & SAMPR_CAP_44
#define HW_FREQ_DEFAULT HW_FREQ_44
#define HW_SAMPR_DEFAULT SAMPR_44
#elif HW_SAMPR_CAPS & SAMPR_CAP_48
#define HW_FREQ_DEFAULT HW_FREQ_48
#define HW_SAMPR_DEFAULT SAMPR_48
#else
#error "Neither 48 or 44KHz supported?"
#endif
#if HW_SAMPR_CAPS & SAMPR_CAP_96
#if HW_SAMPR_CAPS & SAMPR_CAP_192
# define HW_SAMPR_MAX SAMPR_192
#elif HW_SAMPR_CAPS & SAMPR_CAP_176
# define HW_SAMPR_MAX SAMPR_176
#elif HW_SAMPR_CAPS & SAMPR_CAP_96
# define HW_SAMPR_MAX SAMPR_96
#elif HW_SAMPR_CAPS & SAMPR_CAP_88
# define HW_SAMPR_MAX SAMPR_88