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[idd] audio: support 32-bit and common channel layouts

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Advertise signed and floating-point 32-bit formats across mono,
stereo, quad, surround, 5.1, and 7.1 at every supported rate.

Carry sample encoding through the broker and LGMP protocol so integer
and floating-point streams remain distinct.

Expand packet, shared-memory, and ring capacity for eight-channel
32-bit audio.
This commit is contained in:
Geoffrey McRae
2026-09-05 07:39:32 +10:00
parent 5681dcdbe7
commit efc9952e74
13 changed files with 444 additions and 170 deletions
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7
common/include/common/KVMFRAudio.h
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@@ -51,7 +51,7 @@ enum
#define KVMFR_AUDIO_MAX_CHANNELS 18U
#define KVMFR_AUDIO_MAX_SAMPLE_RATE 192000U
#define KVMFR_AUDIO_MAX_FRAMES_PER_PACKET 2048U
#define KVMFR_AUDIO_MAX_BYTES_PER_SAMPLE 3U
#define KVMFR_AUDIO_MAX_BYTES_PER_SAMPLE 4U
#define KVMFR_AUDIO_STREAM_MAX_CHANNELS 8U
#define KVMFR_AUDIO_STREAM_SLOT_COUNT 16U
#define KVMFR_AUDIO_OWNER_LEASE_MS 1000U
@@ -75,6 +75,9 @@ enum
KVMFR_AUDIO_SAMPLE_S16_LE = 1,
/* Signed little-endian samples packed into exactly three bytes. */
KVMFR_AUDIO_SAMPLE_S24_LE = 2,
KVMFR_AUDIO_SAMPLE_S32_LE = 3,
/* IEEE 754 little-endian floating-point samples. */
KVMFR_AUDIO_SAMPLE_F32_LE = 4,
};
typedef uint32_t KVMFRAudioSampleFormat;
@@ -83,6 +86,8 @@ enum
{
KVMFR_AUDIO_SAMPLE_MASK_S16_LE = 1U << 0,
KVMFR_AUDIO_SAMPLE_MASK_S24_LE = 1U << 1,
KVMFR_AUDIO_SAMPLE_MASK_S32_LE = 1U << 2,
KVMFR_AUDIO_SAMPLE_MASK_F32_LE = 1U << 3,
};
typedef uint32_t KVMFRAudioSampleFormatFlags;