Added Eurocom ESF format [Mortal Kombat 4 (PC)]

src/formats.c

@@ -172,6 +172,7 @@ static const char* extension_list[] = {
     "enm",
     "eno",
     "ens",
+    "esf",
     "exa",
     "ezw",
 
@@ -1390,6 +1391,7 @@ static const meta_info meta_info_list[] = {
         {meta_MPEG,                 "MPEG header"},
         {meta_SSPF,                 "Konami SSPF header"},
         {meta_S3V,                  "Konami S3V header"},
+        {meta_ESF,                  "Eurocom ESF header"},
 };
 
 void get_vgmstream_coding_description(VGMSTREAM* vgmstream, char* out, size_t out_size) {

src/libvgmstream.vcxproj

@@ -205,6 +205,7 @@
     <ClCompile Include="meta\bfstm.c" />
     <ClCompile Include="meta\bfwav.c" />
     <ClCompile Include="meta\bwav.c" />
+    <ClCompile Include="meta\esf.c" />
     <ClCompile Include="meta\excitebots.c" />
     <ClCompile Include="meta\ezw.c" />
     <ClCompile Include="meta\ffmpeg.c" />

src/libvgmstream.vcxproj.filters

@@ -1984,5 +1984,8 @@
     <ClCompile Include="meta\s3v.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\esf.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>

src/meta/esf.c

@@ -0,0 +1,46 @@
+#include "meta.h"
+#include "../coding/coding.h"
+
+/* .ESF - from Mortal Kombat 4 (PC) */
+VGMSTREAM* init_vgmstream_esf(STREAMFILE* sf) {
+    VGMSTREAM* vgmstream = NULL;
+    uint32_t pcm_size;
+    off_t start_offset;
+    int loop_flag, bps_flag, hq_flag, channels, bps;
+
+    /* checks */
+    if (!is_id32be(0x00, sf, "ESF\x06"))
+        goto fail;
+
+    if (!check_extensions(sf, "esf"))
+        goto fail;
+
+    pcm_size = read_u32le(0x04, sf);
+    bps_flag = pcm_size & 0x20000000;
+    hq_flag = pcm_size & 0x40000000;
+    loop_flag = pcm_size & 0x80000000;
+    pcm_size &= 0x1FFFFFFF;
+
+    channels = 1; /* mono only */
+    start_offset = 0x08;
+    bps = bps_flag ? 16 : 8; /* 16 is supposed to mean PCM16 but is actually IMA */
+
+    /* build the VGMSTREAM */
+    vgmstream = allocate_vgmstream(channels, loop_flag);
+    if (!vgmstream) goto fail;
+
+    vgmstream->meta_type = meta_ESF;
+    vgmstream->sample_rate = hq_flag ? 22050 : 11025;
+    vgmstream->coding_type = (bps == 8) ? coding_PCM8_U : coding_DVI_IMA;
+    vgmstream->num_samples = pcm_bytes_to_samples(pcm_size, 1, bps);
+    vgmstream->loop_start_sample = 0;
+    vgmstream->loop_end_sample = vgmstream->num_samples;
+
+    if (!vgmstream_open_stream(vgmstream, sf, start_offset))
+        goto fail;
+    return vgmstream;
+
+fail:
+    close_vgmstream(vgmstream);
+    return NULL;
+}

src/meta/meta.h

@@ -982,4 +982,6 @@ VGMSTREAM* init_vgmstream_sspf(STREAMFILE* sf);
 
 VGMSTREAM* init_vgmstream_s3v(STREAMFILE* sf);
 
+VGMSTREAM* init_vgmstream_esf(STREAMFILE* sf);
+
 #endif /*_META_H*/

src/vgmstream.c

@@ -522,6 +522,7 @@ VGMSTREAM* (*init_vgmstream_functions[])(STREAMFILE* sf) = {
     init_vgmstream_sspf,
     init_vgmstream_opus_rsnd,
     init_vgmstream_s3v,
+    init_vgmstream_esf,
 
     /* lower priority metas (no clean header identity, somewhat ambiguous, or need extension/companion file to identify) */
     init_vgmstream_mpeg,

src/vgmstream.h

@@ -756,6 +756,7 @@ typedef enum {
     meta_MPEG,
     meta_SSPF,
     meta_S3V,
+    meta_ESF,
 
 } meta_t;