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Fix implicit Qt split for p-frames

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This commit is contained in:
Marko Viitanen 2018-09-26 12:00:18 +03:00
parent b6f2c66c73
commit 7c37f456f9
1 changed files with 15 additions and 2 deletions
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17
src/encode_coding_tree.c
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@ -1270,7 +1270,20 @@ void kvz_encode_coding_tree(encoder_state_t * const state,
// Implisit split flag when on border // Implisit split flag when on border
// Exception made in VVC with flag not being implicit if the BT can be used for // Exception made in VVC with flag not being implicit if the BT can be used for
// horizontal or vertical split, then this flag tells if QT or BT is used // horizontal or vertical split, then this flag tells if QT or BT is used
if (!border || (depth >= 1 && (border_x != border_y)) ) {
bool implicit_split = border;
bool bottom_left_available = (abs_x >= 0) && (abs_y + cu_width - 1 > ctrl->in.height);
bool top_right_available = (abs_x + cu_width - 1 < ctrl->in.width) && (abs_y >= 0);
if((depth >= 1 && (border_x != border_y))) implicit_split = false;
if (state->frame->slicetype != KVZ_SLICE_I) {
if (border_x != border_y) implicit_split = false;
if (!bottom_left_available && top_right_available) implicit_split = false;
if (!top_right_available && bottom_left_available) implicit_split = false;
}
// Only signal split when it is not implicit
if (!implicit_split) {
// Get left and top block split_flags and if they are present and true, increase model number // Get left and top block split_flags and if they are present and true, increase model number
if (left_cu && GET_SPLITDATA(left_cu, depth) == 1) { if (left_cu && GET_SPLITDATA(left_cu, depth) == 1) {
split_model++; split_model++;
@ -1316,7 +1329,7 @@ void kvz_encode_coding_tree(encoder_state_t * const state,
// Encode skip flag // Encode skip flag
if (state->frame->slicetype != KVZ_SLICE_I) { if (state->frame->slicetype != KVZ_SLICE_I) {
// uiCtxSkip = aboveskipped + leftskipped;
int8_t ctx_skip = 0; int8_t ctx_skip = 0;
if (left_cu && left_cu->skipped) { if (left_cu && left_cu->skipped) {