From d4f6228809fd5fd24337d18ce79298f906c62efc Mon Sep 17 00:00:00 2001
From: bnnm <bananaman255@gmail.com>
Date: Sun, 15 Nov 2020 00:20:44 +0100
Subject: [PATCH] Add .nsopus [Sakuna: Of Rice and Ruin (Switch)]

---
 src/formats.c   |  1 +
 src/meta/meta.h |  1 +
 src/meta/opus.c | 19 +++++++++++++++++++
 src/vgmstream.c |  1 +
 4 files changed, 22 insertions(+)

diff --git a/src/formats.c b/src/formats.c
index fba8e0aa..66e6c408 100644
--- a/src/formats.c
+++ b/src/formats.c
@@ -345,6 +345,7 @@ static const char* extension_list[] = {
     "nop",
     "nps",
     "npsf", //fake extension/header id for .nps (in bigfiles)
+    "nsopus",
     "nub",
     "nub2",
     "nus3audio",
diff --git a/src/meta/meta.h b/src/meta/meta.h
index 501d13fb..c19b9c13 100644
--- a/src/meta/meta.h
+++ b/src/meta/meta.h
@@ -645,6 +645,7 @@ VGMSTREAM* init_vgmstream_opus_nxa(STREAMFILE* sf);
 VGMSTREAM* init_vgmstream_opus_opusx(STREAMFILE* sf);
 VGMSTREAM* init_vgmstream_opus_prototype(STREAMFILE* sf);
 VGMSTREAM* init_vgmstream_opus_opusnx(STREAMFILE* sf);
+VGMSTREAM* init_vgmstream_opus_nsopus(STREAMFILE* sf);
 VGMSTREAM* init_vgmstream_opus_sqex(STREAMFILE* sf);
 
 VGMSTREAM * init_vgmstream_raw_al(STREAMFILE * streamFile);
diff --git a/src/meta/opus.c b/src/meta/opus.c
index e3b9769a..b2fff433 100644
--- a/src/meta/opus.c
+++ b/src/meta/opus.c
@@ -427,6 +427,25 @@ fail:
     return NULL;
 }
 
+/* Edelweiss variation [Sakuna: Of Rice and Ruin (Switch)] */
+VGMSTREAM* init_vgmstream_opus_nsopus(STREAMFILE* sf) {
+    off_t offset = 0;
+    int num_samples = 0, loop_start = 0, loop_end = 0;
+
+    /* checks */
+    if (!check_extensions(sf, "nsopus"))
+        goto fail;
+    if (read_u32be(0x00, sf) != 0x45574E4F) /* "EWNO" */
+        goto fail;
+
+    offset = 0x08;
+    num_samples = 0; //read_32bitLE(0x08, sf); /* samples without encoder delay? (lower than count) */
+
+    return init_vgmstream_opus(sf, meta_OPUS, offset, num_samples, loop_start, loop_end);
+fail:
+    return NULL;
+}
+
 /* Square Enix variation [Dragon Quest I-III (Switch)] */
 VGMSTREAM* init_vgmstream_opus_sqex(STREAMFILE* sf) {
     off_t offset = 0;
diff --git a/src/vgmstream.c b/src/vgmstream.c
index e0cba581..f82f4ba5 100644
--- a/src/vgmstream.c
+++ b/src/vgmstream.c
@@ -511,6 +511,7 @@ VGMSTREAM* (*init_vgmstream_functions[])(STREAMFILE* sf) = {
     init_vgmstream_dsp_wiivoice,
     init_vgmstream_xws,
     init_vgmstream_cpk,
+    init_vgmstream_opus_nsopus,
 
     /* lowest priority metas (should go after all metas, and TXTH should go before raw formats) */
     init_vgmstream_txth,            /* proper parsers should supersede TXTH, once added */