Add Wwise .bnk for internal streams

src/libvgmstream.vcproj

@@ -544,6 +544,10 @@
                     RelativePath=".\meta\bik.c"
                     >
                 </File>
+                <File
+                    RelativePath=".\meta\bkhd.c"
+                    >
+                </File>
                 <File
                     RelativePath=".\meta\bmp_konami.c"
                     >

src/libvgmstream.vcxproj

@@ -273,6 +273,7 @@
     <ClCompile Include="meta\baf.c" />
     <ClCompile Include="meta\bgw.c" />
     <ClCompile Include="meta\bik.c" />
+    <ClCompile Include="meta\bkhd.c" />
     <ClCompile Include="meta\bmp_konami.c" />
     <ClCompile Include="meta\bnk_sony.c" />
     <ClCompile Include="meta\bnsf.c" />

src/libvgmstream.vcxproj.filters

@@ -1660,6 +1660,9 @@
     <ClCompile Include="meta\bik.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\bkhd.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="meta\bmp_konami.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>

src/meta/bkhd.c

@@ -0,0 +1,62 @@
+#include "meta.h"
+#include "../coding/coding.h"
+
+
+/* BKHD - Wwise soundbank container */
+VGMSTREAM* init_vgmstream_bkhd(STREAMFILE* sf) {
+    VGMSTREAM* vgmstream = NULL;
+    STREAMFILE* temp_sf = NULL;
+    off_t subfile_offset, didx_offset, data_offset, offset;
+    size_t subfile_size, didx_size;
+    uint32_t subfile_id;
+    int big_endian;
+    uint32_t (*read_u32)(off_t,STREAMFILE*);
+    int total_subsongs, target_subsong = sf->stream_index;
+
+
+    /* checks */
+    if (!check_extensions(sf,"bnk"))
+        goto fail;
+    if (read_u32be(0x00, sf) != 0x424B4844) /* "BKHD" */
+        goto fail;
+    big_endian = guess_endianness32bit(0x04, sf);
+    read_u32 = big_endian ? read_u32be : read_u32le;
+
+    /* Wwise banks have event/track/sequence/etc info in the HIRC chunk, as well
+     * as other chunks, and may have a DIDX index to memory .wem in DATA.
+     * We support the internal .wem mainly for quick tests, as the HIRC is
+     * complex and better handled with TXTP (some info from Nicknine's script) */
+
+    /* unlike RIFF first chunk follows chunk rules */
+    if (!find_chunk(sf, 0x44494458, 0x00,0, &didx_offset, &didx_size, big_endian, 0)) /* "DIDX" */
+        goto fail;
+    if (!find_chunk(sf, 0x44415441, 0x00,0, &data_offset, NULL, big_endian, 0)) /* "DATA" */
+        goto fail;
+
+    total_subsongs = didx_size / 0x0c;
+    if (target_subsong == 0) target_subsong = 1;
+    if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
+
+    offset = didx_offset + (target_subsong - 1) * 0x0c;
+    subfile_id      = read_u32(offset + 0x00, sf);
+    subfile_offset  = read_u32(offset + 0x04, sf) + data_offset;
+    subfile_size    = read_u32(offset + 0x08, sf);
+
+
+    temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, "wem");
+    if (!temp_sf) goto fail;
+
+    vgmstream = init_vgmstream_wwise(temp_sf);
+    if (!vgmstream) goto fail;
+
+    vgmstream->num_streams = total_subsongs;
+    snprintf(vgmstream->stream_name, STREAM_NAME_SIZE, "%i", subfile_id);
+
+    close_streamfile(temp_sf);
+    return vgmstream;
+
+fail:
+    close_streamfile(temp_sf);
+    close_vgmstream(vgmstream);
+    return NULL;
+}

src/meta/meta.h

@@ -888,4 +888,6 @@ VGMSTREAM * init_vgmstream_kwb(STREAMFILE* sf);
 
 VGMSTREAM * init_vgmstream_lrmd(STREAMFILE* sf);
 
+VGMSTREAM* init_vgmstream_bkhd(STREAMFILE* sf);
+
 #endif /*_META_H*/

src/vgmstream.c

@@ -490,6 +490,7 @@ VGMSTREAM * (*init_vgmstream_functions[])(STREAMFILE *streamFile) = {
     init_vgmstream_tgc,
     init_vgmstream_kwb,
     init_vgmstream_lrmd,
+    init_vgmstream_bkhd,
 
     /* 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 */