diff options
Diffstat (limited to 'vp9/common/vp9_quant_common.c')
| -rw-r--r-- | vp9/common/vp9_quant_common.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/vp9/common/vp9_quant_common.c b/vp9/common/vp9_quant_common.c index 2e9e4cab2..5907b4f58 100644 --- a/vp9/common/vp9_quant_common.c +++ b/vp9/common/vp9_quant_common.c @@ -10,6 +10,7 @@ #include "vp9/common/vp9_common.h" #include "vp9/common/vp9_quant_common.h" +#include "vp9/common/vp9_seg_common.h" static int16_t dc_qlookup[QINDEX_RANGE]; static int16_t ac_qlookup[QINDEX_RANGE]; @@ -44,3 +45,16 @@ int16_t vp9_dc_quant(int qindex, int delta) { int16_t vp9_ac_quant(int qindex, int delta) { return ac_qlookup[clamp(qindex + delta, 0, MAXQ)]; } + + +int vp9_get_qindex(MACROBLOCKD *xd, int segment_id, int base_qindex) { + if (vp9_segfeature_active(xd, segment_id, SEG_LVL_ALT_Q)) { + const int data = vp9_get_segdata(xd, segment_id, SEG_LVL_ALT_Q); + return xd->mb_segment_abs_delta == SEGMENT_ABSDATA ? + data : // Abs value + clamp(base_qindex + data, 0, MAXQ); // Delta value + } else { + return base_qindex; + } +} + |