func (this *TEncEntropy) encodeSaoOffset(saoLcuParam *TLibCommon.SaoLcuParam, compIdx uint) {
var uiSymbol uint
var i int
uiSymbol = uint(saoLcuParam.TypeIdx) + 1
if compIdx != 2 {
this.m_pcEntropyCoderIf.codeSaoTypeIdx(uiSymbol)
}
if uiSymbol != 0 {
if saoLcuParam.TypeIdx < 4 && compIdx != 2 {
saoLcuParam.SubTypeIdx = saoLcuParam.TypeIdx
}
var bitDepth int
if compIdx != 0 {
bitDepth = TLibCommon.G_bitDepthC
} else {
bitDepth = TLibCommon.G_bitDepthY
}
offsetTh := 1 << uint(TLibCommon.MIN(int(bitDepth-5), int(5)).(int))
if saoLcuParam.TypeIdx == TLibCommon.SAO_BO {
for i = 0; i < saoLcuParam.Length; i++ {
var absOffset int
if saoLcuParam.Offset[i] < 0 {
absOffset = -saoLcuParam.Offset[i]
} else {
absOffset = saoLcuParam.Offset[i]
}
this.m_pcEntropyCoderIf.codeSaoMaxUvlc(uint(absOffset), uint(offsetTh-1))
}
for i = 0; i < saoLcuParam.Length; i++ {
if saoLcuParam.Offset[i] != 0 {
var sign uint
if saoLcuParam.Offset[i] < 0 {
sign = 1
} else {
sign = 0
}
this.m_pcEntropyCoderIf.codeSAOSign(sign)
}
}
uiSymbol = uint(saoLcuParam.SubTypeIdx)
this.m_pcEntropyCoderIf.codeSaoUflc(5, uiSymbol)
} else if saoLcuParam.TypeIdx < 4 {
this.m_pcEntropyCoderIf.codeSaoMaxUvlc(uint(saoLcuParam.Offset[0]), uint(offsetTh-1))
this.m_pcEntropyCoderIf.codeSaoMaxUvlc(uint(saoLcuParam.Offset[1]), uint(offsetTh-1))
this.m_pcEntropyCoderIf.codeSaoMaxUvlc(uint(-saoLcuParam.Offset[2]), uint(offsetTh-1))
this.m_pcEntropyCoderIf.codeSaoMaxUvlc(uint(-saoLcuParam.Offset[3]), uint(offsetTh-1))
if compIdx != 2 {
uiSymbol = uint(saoLcuParam.SubTypeIdx)
this.m_pcEntropyCoderIf.codeSaoUflc(2, uiSymbol)
}
}
}
}
func (this *TEncRCGOP) xEstGOPTargetBits(encRCSeq *TEncRCSeq, GOPSize int) int {
realInfluencePicture := TLibCommon.MIN(g_RCSmoothWindowSize, encRCSeq.getFramesLeft()).(int)
averageTargetBitsPerPic := int(encRCSeq.getTargetBits() / int64(encRCSeq.getTotalFrames()))
currentTargetBitsPerPic := int((int64(encRCSeq.getBitsLeft()) - int64(averageTargetBitsPerPic)*(int64(encRCSeq.getFramesLeft())-int64(realInfluencePicture))) / int64(realInfluencePicture))
targetBits := currentTargetBitsPerPic * GOPSize
if targetBits < 200 {
targetBits = 200 // at least allocate 200 bits for one GOP
}
return targetBits
}