Add .smc+smh [Wangan Midnight (System 246)]

src/formats.c

@@ -300,6 +300,7 @@ static const char* extension_list[] = {
     "sl3",
     "slb", //txth/reserved [THE Nekomura no Hitobito (PS2)]
     "sli",
+    "smc",
     "smp",
     "smpl", //fake extension (to be removed)
     "smv",
@@ -997,6 +998,7 @@ static const meta_info meta_info_list[] = {
         {meta_OGG_RPGMV,            "Ogg Vorbis (RPGMV header)"},
         {meta_OGG_ENO,              "Ogg Vorbis (ENO header)"},
         {meta_TXTP,                 "TXTP generic header"},
+        {meta_SMC_SMH,              "Genki SMC+SMH header"},
 
 #ifdef VGM_USE_FFMPEG
         {meta_FFmpeg,               "FFmpeg supported file format"},

src/libvgmstream.vcproj

@@ -1218,6 +1218,10 @@
 					RelativePath=".\meta\sli.c"
 					>
 				</File>
+                <File
+                    RelativePath=".\meta\smc_smh.c"
+                    >
+                </File>
                 <File
                     RelativePath=".\meta\smv.c"
                     >

src/libvgmstream.vcxproj

@@ -389,6 +389,7 @@
     <ClCompile Include="meta\sdt.c" />
     <ClCompile Include="meta\sfl.c" />
     <ClCompile Include="meta\sli.c" />
+    <ClCompile Include="meta\smc_smh.c" />
     <ClCompile Include="meta\smv.c" />
     <ClCompile Include="meta\sps_n1.c" />
     <ClCompile Include="meta\spt_spd.c" />

src/libvgmstream.vcxproj.filters

@@ -742,6 +742,9 @@
     <ClCompile Include="meta\sli.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\smc_smh.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="meta\smv.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>

src/meta/meta.h

@@ -736,4 +736,6 @@ VGMSTREAM * init_vgmstream_msb_msh(STREAMFILE * streamFile);
 
 VGMSTREAM * init_vgmstream_txtp(STREAMFILE * streamFile);
 
+VGMSTREAM * init_vgmstream_smc_smh(STREAMFILE * streamFile);
+
 #endif /*_META_H*/

src/meta/smc_smh.c

@@ -0,0 +1,66 @@
+#include "meta.h"
+#include "../coding/coding.h"
+
+/* SMC+SMH - from Wangan Midnight 1/R (System246) */
+VGMSTREAM * init_vgmstream_smc_smh(STREAMFILE *streamFile) {
+    VGMSTREAM * vgmstream = NULL;
+    STREAMFILE * streamHeader = NULL;
+    off_t start_offset, header_offset = 0;
+    size_t stream_size;
+    int loop_flag = 0, channel_count, sample_rate;
+    int total_subsongs, target_subsong = streamFile->stream_index;
+
+
+    /* checks */
+    if (!check_extensions(streamFile, "smc"))
+        goto fail;
+
+    streamHeader = open_streamfile_by_ext(streamFile, "smh");
+    if (!streamHeader) goto fail;
+
+
+    total_subsongs = read_32bitLE(0x00,streamHeader);
+    if (target_subsong == 0) target_subsong = 1;
+    if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
+
+    if (total_subsongs*0x10 + 0x10 != get_streamfile_size(streamHeader))
+        goto fail;
+
+    header_offset = 0x10 + (target_subsong-1)*0x10;
+
+    start_offset  = read_32bitLE(header_offset+0x00, streamHeader);
+    stream_size   = read_32bitLE(header_offset+0x04, streamHeader);
+    sample_rate   = read_32bitLE(header_offset+0x08, streamHeader);
+    /* 0x0c(2): always 0x10, frame size? */
+    channel_count = read_16bitLE(header_offset+0x0e, streamHeader);
+
+    loop_flag = 0;
+
+
+    /* build the VGMSTREAM */
+    vgmstream = allocate_vgmstream(channel_count,loop_flag);
+    if (!vgmstream) goto fail;
+
+    vgmstream->sample_rate = sample_rate;
+    vgmstream->num_samples = ps_bytes_to_samples(stream_size,channel_count);
+
+    vgmstream->num_streams = total_subsongs;
+    vgmstream->stream_size = stream_size;
+    vgmstream->meta_type = meta_SMC_SMH;
+
+    vgmstream->coding_type = coding_PSX;
+    vgmstream->layout_type = layout_interleave;
+    vgmstream->interleave_block_size = read_32bitLE(0x04, streamHeader);
+
+
+    close_streamfile(streamHeader);
+
+    if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
+        goto fail;
+    return vgmstream;
+
+fail:
+    close_streamfile(streamHeader);
+    close_vgmstream(vgmstream);
+    return NULL;
+}

src/vgmstream.c

@@ -398,6 +398,7 @@ VGMSTREAM * (*init_vgmstream_functions[])(STREAMFILE *streamFile) = {
     init_vgmstream_ubi_lyn_container,
     init_vgmstream_msb_msh,
     init_vgmstream_txtp,
+    init_vgmstream_smc_smh,
 
     init_vgmstream_txth,  /* should go at the end (lower priority) */
 #ifdef VGM_USE_FFMPEG

src/vgmstream.h

@@ -669,6 +669,7 @@ typedef enum {
     meta_OGG_RPGMV,         /* Ogg Vorbis with encryption [RPG Maker MV games (PC)] */
     meta_OGG_ENO,           /* Ogg Vorbis with encryption [Metronomicon (PC)] */
     meta_TXTP,              /* generic text playlist */
+    meta_SMC_SMH,           /* Wangan Midnight (System 246) */
 
 #ifdef VGM_USE_FFMPEG
     meta_FFmpeg,