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[mtt] Fix implicit splits when mtt is not enabled

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Joose Sainio 2022-12-14 09:01:52 +02:00 committed by Marko Viitanen
parent 05218bae21
commit f6ecb15ced
1 changed files with 10 additions and 5 deletions
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15
src/cu.c
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@ -370,8 +370,12 @@ int uvg_get_split_locs(
}
int uvg_get_implicit_split(const encoder_state_t* const state, const cu_loc_t* const cu_loc, enum
uvg_tree_type tree_type)
int uvg_get_implicit_split(
const encoder_state_t* const state,
const cu_loc_t* const cu_loc,
enum
uvg_tree_type tree_type,
uint8_t max_mtt_depth)
{
// This checking if cabac is in update state is a very dirty way of checking
// whether we are in the search or writing the bitstream, and unfortunately the
@ -383,8 +387,8 @@ int uvg_get_implicit_split(const encoder_state_t* const state, const cu_loc_t* c
bool bottom_ok = (state->tile->frame->height >> (tree_type == UVG_CHROMA_T && state->cabac.update)) >= cu_loc->y + cu_loc->height;
if (right_ok && bottom_ok) return NO_SPLIT;
if (right_ok) return BT_HOR_SPLIT;
if (bottom_ok) return BT_VER_SPLIT;
if (right_ok && max_mtt_depth != 0) return BT_HOR_SPLIT;
if (bottom_ok && max_mtt_depth != 0) return BT_VER_SPLIT;
return QT_SPLIT;
}
@ -394,7 +398,6 @@ int uvg_get_possible_splits(const encoder_state_t * const state,
{
const int width = tree_type != UVG_CHROMA_T ? cu_loc->width : cu_loc->chroma_width;
const int height = tree_type != UVG_CHROMA_T ? cu_loc->height : cu_loc->chroma_height;
const enum split_type implicitSplit = uvg_get_implicit_split(state, cu_loc, tree_type);
const int slice_type = state->frame->is_irap ? (tree_type == UVG_CHROMA_T ? 2 : 0) : 1;
const unsigned max_btd =
@ -404,6 +407,8 @@ int uvg_get_possible_splits(const encoder_state_t * const state,
const unsigned max_tt_size = state->encoder_control->cfg.max_tt_size[slice_type] >> (tree_type == UVG_CHROMA_T);
const unsigned min_tt_size = 1 << MIN_SIZE >> (tree_type == UVG_CHROMA_T);
const unsigned min_qt_size = state->encoder_control->cfg.min_qt_size[slice_type];
const enum split_type implicitSplit = uvg_get_implicit_split(state, cu_loc, tree_type, max_btd);
splits[NO_SPLIT] = splits[QT_SPLIT] = splits[BT_HOR_SPLIT] = splits[TT_HOR_SPLIT] = splits[BT_VER_SPLIT] = splits[TT_VER_SPLIT] = true;
bool can_btt = split_tree.mtt_depth < max_btd;