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more audio loudness tweaks

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This commit is contained in:
ZappoMan 2017-01-12 07:56:09 -08:00
parent fe06dfdca7
commit 0e600fc8fd
2 changed files with 11 additions and 7 deletions
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14
libraries/avatars/src/AvatarData.cpp
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@ -52,7 +52,7 @@ const QString AvatarData::FRAME_NAME = "com.highfidelity.recording.AvatarData";
static const int TRANSLATION_COMPRESSION_RADIX = 12;
static const int SENSOR_TO_WORLD_SCALE_RADIX = 10;
static const int AUDIO_LOUDNESS_RADIX = 2;
static const float AUDIO_LOUDNESS_SCALE = 20.0f;
static const float AUDIO_LOUDNESS_SCALE = 4.0f;
//static const int MODEL_OFFSET_RADIX = 6;
#define ASSERT(COND) do { if (!(COND)) { abort(); } } while(0)
@ -234,10 +234,12 @@ QByteArray AvatarData::toByteArray(AvatarDataDetail dataDetail, quint64 lastSent
// TODO -
// typical -- 1jd 0ft 0p 1af 1stw 0loud 1look 0s 0o 1d 1lp 1gp
//
// 4) AudioLoudness - 8bit encoding, clamp to 1000 and / 4.0f - 1 byte - 0.36 kpbs (when speaking)
//
//
// 1) make the dimensions really be dimensions instead of corner - 12 bytes - 4.32 kbps (when moving)
// 2) determine if local position really only matters for parent - 12 bytes - 4.32 kbps (when moving and/or not parented)
// 3) SensorToWorld - should we only send this for avatars with attachments?? - 20 bytes - 7.20 kbps
// 4) AudioLoudness - use Ken's 8bit encoding - 1 byte - 0.36 kpbs (when speaking)
// 5) GUIID for the session change to 2byte index (savings) - 14 bytes - 5.04 kbps
//
// ----- Subtotal -- non-joint savings --- ~21.2 kbps --- ~12.8% savings?
@ -337,8 +339,8 @@ QByteArray AvatarData::toByteArray(AvatarDataDetail dataDetail, quint64 lastSent
if (hasAudioLoudness) {
auto data = reinterpret_cast<AvatarDataPacket::AudioLoudness*>(destinationBuffer);
auto audioLoudness = glm::min(_headData->getAudioLoudness(), MAX_AUDIO_LOUDNESS) / AUDIO_LOUDNESS_SCALE;
destinationBuffer += packFloatScalarToSignedOneByteFixed((uint8_t*)&data->audioLoudness, audioLoudness, AUDIO_LOUDNESS_RADIX);
data->audioLoudness = glm::min(_headData->getAudioLoudness(), MAX_AUDIO_LOUDNESS) / AUDIO_LOUDNESS_SCALE;
destinationBuffer += sizeof(AvatarDataPacket::AudioLoudness);
}
if (hasSensorToWorldMatrix) {
@ -753,8 +755,8 @@ int AvatarData::parseDataFromBuffer(const QByteArray& buffer) {
PACKET_READ_CHECK(AudioLoudness, sizeof(AvatarDataPacket::AudioLoudness));
auto data = reinterpret_cast<const AvatarDataPacket::AudioLoudness*>(sourceBuffer);
float audioLoudness;
sourceBuffer += unpackFloatScalarFromSignedOneByteFixed(&data->audioLoudness, &audioLoudness, AUDIO_LOUDNESS_RADIX);
audioLoudness *= AUDIO_LOUDNESS_SCALE;
audioLoudness = data->audioLoudness * AUDIO_LOUDNESS_SCALE;
sourceBuffer += sizeof(AvatarDataPacket::AudioLoudness);
if (isNaN(audioLoudness)) {
if (shouldLogError(now)) {

4
libraries/avatars/src/AvatarData.h
View file

@ -200,7 +200,9 @@ namespace AvatarDataPacket {
const size_t LOOK_AT_POSITION_SIZE = 12;
PACKED_BEGIN struct AudioLoudness {
uint8_t audioLoudness; // current loudness of microphone, compressed by packFloatGainToByte()
uint8_t audioLoudness; // current loudness of microphone, clamped to MAX_AUDIO_LOUDNESS and
// scaled by AUDIO_LOUDNESS_SCALE typical values 0 to 255 or once
// rescaled 0.0 to 1000.0
} PACKED_END;
const size_t AUDIO_LOUDNESS_SIZE = 1;