[x265] [PATCH] add API and implementation for Region of Interest(ROI)
santhoshini at multicorewareinc.com
santhoshini at multicorewareinc.com
Tue Aug 4 12:06:51 CEST 2015
# HG changeset patch
# User Santhoshini Sekar<santhoshini at multicorewareinc.com>
# Date 1438679012 -19800
# Tue Aug 04 14:33:32 2015 +0530
# Node ID 1d61a8d12dc6bc446772817fcb90aab5b371b90e
# Parent d5278c76d341b3bac405938dbfb64cb7e2d9bce5
add API and implementation for Region of Interest(ROI)
diff -r d5278c76d341 -r 1d61a8d12dc6 source/common/frame.h
--- a/source/common/frame.h Mon Aug 03 10:18:46 2015 -0500
+++ b/source/common/frame.h Tue Aug 04 14:33:32 2015 +0530
@@ -59,6 +59,8 @@
bool m_lowresInit; // lowres init complete (pre-analysis)
bool m_bChromaExtended; // orig chroma planes motion extended for weight analysis
+ float* m_quantOffsets; // points to quantOffsets in x265_picture
+
/* Frame Parallelism - notification between FrameEncoders of available motion reference rows */
ThreadSafeInteger m_reconRowCount; // count of CTU rows completely reconstructed and extended for motion reference
volatile uint32_t m_countRefEncoders; // count of FrameEncoder threads monitoring m_reconRowCount
diff -r d5278c76d341 -r 1d61a8d12dc6 source/encoder/encoder.cpp
--- a/source/encoder/encoder.cpp Mon Aug 03 10:18:46 2015 -0500
+++ b/source/encoder/encoder.cpp Tue Aug 04 14:33:32 2015 +0530
@@ -465,6 +465,7 @@
inFrame->m_pts = pic_in->pts;
inFrame->m_forceqp = pic_in->forceqp;
inFrame->m_param = m_reconfigured ? m_latestParam : m_param;
+ inFrame->m_quantOffsets = pic_in->quantOffsets;
if (m_pocLast == 0)
m_firstPts = inFrame->m_pts;
@@ -484,6 +485,9 @@
}
}
+ if(pic_in->quantOffsetsFree)
+ pic_in->quantOffsetsFree(pic_in->quantOffsets);
+
/* Use the frame types from the first pass, if available */
int sliceType = (m_param->rc.bStatRead) ? m_rateControl->rateControlSliceType(inFrame->m_poc) : pic_in->sliceType;
diff -r d5278c76d341 -r 1d61a8d12dc6 source/encoder/slicetype.cpp
--- a/source/encoder/slicetype.cpp Mon Aug 03 10:18:46 2015 -0500
+++ b/source/encoder/slicetype.cpp Tue Aug 04 14:33:32 2015 +0530
@@ -96,6 +96,7 @@
int maxRow = curFrame->m_fencPic->m_picHeight;
int blockCount = curFrame->m_lowres.maxBlocksInRow * curFrame->m_lowres.maxBlocksInCol;
+ float* quantOffsets = curFrame->m_quantOffsets;
for (int y = 0; y < 3; y++)
{
curFrame->m_lowres.wp_ssd[y] = 0;
@@ -113,10 +114,21 @@
if (param->rc.aqMode && param->rc.aqStrength == 0)
{
- memset(curFrame->m_lowres.qpCuTreeOffset, 0, cuCount * sizeof(double));
- memset(curFrame->m_lowres.qpAqOffset, 0, cuCount * sizeof(double));
- for (int cuxy = 0; cuxy < cuCount; cuxy++)
- curFrame->m_lowres.invQscaleFactor[cuxy] = 256;
+ if (quantOffsets)
+ {
+ for (int cuxy = 0; cuxy < cuCount; cuxy++)
+ {
+ curFrame->m_lowres.qpCuTreeOffset[cuxy] = curFrame->m_lowres.qpAqOffset[cuxy] = quantOffsets[cuxy];
+ curFrame->m_lowres.invQscaleFactor[cuxy] = x265_exp2fix8(curFrame->m_lowres.qpCuTreeOffset[cuxy]);
+ }
+ }
+ else
+ {
+ memset(curFrame->m_lowres.qpCuTreeOffset, 0, cuCount * sizeof(double));
+ memset(curFrame->m_lowres.qpAqOffset, 0, cuCount * sizeof(double));
+ for (int cuxy = 0; cuxy < cuCount; cuxy++)
+ curFrame->m_lowres.invQscaleFactor[cuxy] = 256;
+ }
}
/* Need variance data for weighted prediction */
@@ -177,6 +189,8 @@
uint32_t energy = acEnergyCu(curFrame, blockX, blockY, param->internalCsp);
qp_adj = strength * (X265_LOG2(X265_MAX(energy, 1)) - (14.427f + 2 * (X265_DEPTH - 8)));
}
+ if (quantOffsets)
+ qp_adj += quantOffsets[blockXY];
curFrame->m_lowres.qpAqOffset[blockXY] = qp_adj;
curFrame->m_lowres.qpCuTreeOffset[blockXY] = qp_adj;
curFrame->m_lowres.invQscaleFactor[blockXY] = x265_exp2fix8(qp_adj);
diff -r d5278c76d341 -r 1d61a8d12dc6 source/x265.h
--- a/source/x265.h Mon Aug 03 10:18:46 2015 -0500
+++ b/source/x265.h Tue Aug 04 14:33:32 2015 +0530
@@ -205,6 +205,17 @@
* this data structure */
x265_analysis_data analysisData;
+ /* An array of quantizer offsets to be applied to this image during encoding.
+ * These are added on top of the decisions made by rateControl.
+ * Adaptive quantization must be enabled to use this feature. These quantizer
+ * offsets should be given for each 16x16 block. Behavior if quant
+ * offsets differ between encoding passes is undefined. */
+ float *quantOffsets;
+
+ /* optional callback to free quant_offsets when used.
+ * Useful if one wants to use a different quant_offset array for each frame. */
+ void (*quantOffsetsFree)(void*);
+
/* Frame level statistics */
x265_frame_stats frameData;
More information about the x265-devel
mailing list