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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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52
idd/LGAudio/BrokerDevice.cpp
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@@ -778,11 +778,39 @@ namespace
_In_ const LGAudioBrokerFormat &format,
_Out_opt_ FormatFingerprint *fingerprint)
{
if (format.reserved)
return false;
SampleFormat sampleFormat = SampleFormat::Unknown;
switch (format.sampleFormat)
{
case LGAUDIO_BROKER_SAMPLE_S16_LE:
if (format.containerBits != 16 || format.validBits != 16)
return false;
sampleFormat = SampleFormat::S16LE;
break;
case LGAUDIO_BROKER_SAMPLE_S24_LE:
if (format.containerBits != 24 || format.validBits != 24)
return false;
sampleFormat = SampleFormat::S24LE;
break;
case LGAUDIO_BROKER_SAMPLE_S32_LE:
if (format.containerBits != 32 || format.validBits != 32)
return false;
sampleFormat = SampleFormat::S32LE;
break;
case LGAUDIO_BROKER_SAMPLE_F32_LE:
if (format.containerBits != 32 || format.validBits != 32)
return false;
sampleFormat = SampleFormat::F32LE;
break;
default:
return false;
}
if (!format.sampleRate ||
format.sampleRate > kMaximumSampleRate ||
!format.channels || format.channels > 8 ||
(format.containerBits != 16 && format.containerBits != 24) ||
format.validBits != format.containerBits ||
format.blockAlign !=
format.channels * (format.containerBits / 8))
{
@@ -791,6 +819,7 @@ namespace
if (fingerprint)
{
fingerprint->sampleFormat = sampleFormat;
fingerprint->sampleRate = format.sampleRate;
fingerprint->channelMask = format.channelMask;
fingerprint->channels = format.channels;
@@ -805,12 +834,31 @@ namespace
_In_ const FormatFingerprint &source,
_Out_ LGAudioBrokerFormat *destination)
{
switch (source.sampleFormat)
{
case SampleFormat::S16LE:
destination->sampleFormat = LGAUDIO_BROKER_SAMPLE_S16_LE;
break;
case SampleFormat::S24LE:
destination->sampleFormat = LGAUDIO_BROKER_SAMPLE_S24_LE;
break;
case SampleFormat::S32LE:
destination->sampleFormat = LGAUDIO_BROKER_SAMPLE_S32_LE;
break;
case SampleFormat::F32LE:
destination->sampleFormat = LGAUDIO_BROKER_SAMPLE_F32_LE;
break;
default:
destination->sampleFormat = 0;
break;
}
destination->sampleRate = source.sampleRate;
destination->channelMask = source.channelMask;
destination->channels = source.channels;
destination->containerBits = source.containerBits;
destination->validBits = source.validBits;
destination->blockAlign = source.blockAlign;
destination->reserved = 0;
}
UINT32 GetBrokerStreamState(_In_ KSSTATE state)