[bitstream] Fix delta qp writing

Jovasa · Jovasa · commit cf31e8291305 · 2025-02-24T11:19:42.000+02:00
diff --git a/src/encode_coding_tree.c b/src/encode_coding_tree.c
@@ -717,8 +717,8 @@ static void encode_transform_coeff(
     }
   }
 
-  if (cb_flag_y | cb_flag_u | cb_flag_v) {
-    if (state->must_code_qp_delta && (only_chroma || cb_flag_y || chroma_loc) ) {
+  if ((cb_flag_y | cb_flag_u | cb_flag_v)) {
+    if (state->must_code_qp_delta && !only_chroma && (cb_flag_y || ((cb_flag_u || cb_flag_v) && chroma_loc)) ) {
       const int qp_pred      = uvg_get_cu_ref_qp(state, cu_loc->x, cu_loc->y, state->last_qp);
       const int qp_delta     = cur_tu->qp - qp_pred;
       // Possible deltaQP range depends on bit depth as stated in HEVC specification.

Original file line number	Diff line number	Diff line change
`@@ -717,8 +717,8 @@ static void encode_transform_coeff(`
`717`	`717`	`}`
`718`	`718`	`}`
`719`	`719`
`720`		`- if (cb_flag_y \| cb_flag_u \| cb_flag_v) {`
`721`		`- if (state->must_code_qp_delta && (only_chroma \|\| cb_flag_y \|\| chroma_loc) ) {`
	`720`	`+ if ((cb_flag_y \| cb_flag_u \| cb_flag_v)) {`
	`721`	`+ if (state->must_code_qp_delta && !only_chroma && (cb_flag_y \|\| ((cb_flag_u \|\| cb_flag_v) && chroma_loc)) ) {`
`722`	`722`	`const int qp_pred = uvg_get_cu_ref_qp(state, cu_loc->x, cu_loc->y, state->last_qp);`
`723`	`723`	`const int qp_delta = cur_tu->qp - qp_pred;`
`724`	`724`	`// Possible deltaQP range depends on bit depth as stated in HEVC specification.`