Add FFDL Ogg [Final Fantasy Dimensions (Android)]

src/libvgmstream.vcproj

@@ -1302,10 +1302,14 @@
 					RelativePath=".\meta\xa.c"
 					>
 				</File>
-				<File
-					RelativePath=".\meta\fag.c"
-					>
-				</File>
+                <File
+                    RelativePath=".\meta\fag.c"
+                    >
+                </File>
+                <File
+                    RelativePath=".\meta\ffdl.c"
+                    >
+                </File>
 				<File
 					RelativePath=".\meta\psx_gms.c"
 					>

src/libvgmstream.vcxproj

@@ -415,6 +415,7 @@
     <ClCompile Include="meta\ps3_mta2.c" />
     <ClCompile Include="meta\xa.c" />
     <ClCompile Include="meta\fag.c" />
+    <ClCompile Include="meta\ffdl.c" />
     <ClCompile Include="meta\psx_gms.c" />
     <ClCompile Include="meta\ea_swvr.c" />
     <ClCompile Include="meta\raw.c" />

src/libvgmstream.vcxproj.filters

@@ -802,6 +802,9 @@
     <ClCompile Include="meta\fag.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="meta\ffdl.c">
+      <Filter>meta\Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="meta\psx_gms.c">
       <Filter>meta\Source Files</Filter>
     </ClCompile>

src/meta/ffdl.c

@@ -0,0 +1,83 @@
+#include "meta.h"
+#include "../coding/coding.h"
+
+
+/* FFDL - Matrix Software wrapper [Final Fantasy Dimensions (Android/iOS)] */
+VGMSTREAM * init_vgmstream_ffdl(STREAMFILE *sf) {
+    VGMSTREAM * vgmstream = NULL;
+    STREAMFILE *temp_sf = NULL;
+    int loop_flag = 0, is_ffdl = 0;
+    int32_t num_samples = 0, loop_start_sample = 0, loop_end_sample = 0;
+    off_t start_offset;
+    size_t file_size;
+
+
+    /* checks */
+    /* .ogg/logg: probably extension
+     * (extensionless): for files without names in Android .obb bigfile */
+    if (!check_extensions(sf, "ogg,logg,bin,"))
+        goto fail;
+
+    /* "FFDL" is a wrapper used in all of the game's files, that may contain standard
+     * Ogg/MP4 or "mtxs" w/ loops + Ogg/MP4, and may concatenate multiple of them
+     * (without size in sight), so they should be split externally first. */
+
+    start_offset = 0x00;
+
+    /* may start with wrapper (not split) */
+    if (read_u32be(0x00,sf) == 0x4646444C) { /* "FFDL" */
+        is_ffdl = 1;
+        start_offset += 0x04;
+    }
+
+    /* may start with sample info (split) or after "FFDL" */
+    if (read_u32be(start_offset+0x00,sf) == 0x6D747873) { /* "mtxs" */
+        is_ffdl = 1;
+
+        num_samples       = read_s32le(start_offset + 0x04,sf);
+        loop_start_sample = read_s32le(start_offset + 0x08,sf);
+        loop_end_sample   = read_s32le(start_offset + 0x0c,sf);
+        loop_flag = !(loop_start_sample==0 && loop_end_sample==num_samples);
+
+        start_offset += 0x10;
+    }
+
+    if (!is_ffdl)
+        goto fail; /* don't parse regular files */
+
+    file_size = get_streamfile_size(sf) - start_offset;
+
+    if (read_u32be(start_offset,sf) == 0x4F676753) { /* "OggS" */
+        temp_sf = setup_subfile_streamfile(sf, start_offset, file_size, "ogg");
+        if (!temp_sf) goto fail;
+
+#ifdef VGM_USE_VORBIS
+        vgmstream = init_vgmstream_ogg_vorbis(temp_sf);
+        if (!vgmstream) goto fail;
+#else
+    goto fail;
+#endif
+    }
+    else {
+        goto fail;
+    }
+
+    /* install loops */
+    if (loop_flag) {
+        /* num_samples is erratic (can be bigger = padded, or smaller = cut; doesn't matter for looping though) */
+        //;VGM_ASSERT(vgmstream->num_samples != num_samples,
+        //        "FFDL: mtxs samples = %i vs num_samples = %i\n", num_samples, vgmstream->num_samples);
+        //vgmstream->num_samples = num_samples;
+
+        /* loop samples are within num_samples, and don't have encoder delay (loop_start=0 starts from encoder_delay) */
+        vgmstream_force_loop(vgmstream, 1, loop_start_sample, loop_end_sample);
+    }
+
+    close_streamfile(temp_sf);
+    return vgmstream;
+
+fail:
+    close_streamfile(temp_sf);
+    close_vgmstream(vgmstream);
+    return NULL;
+}

src/meta/meta.h

@@ -831,4 +831,6 @@ VGMSTREAM * init_vgmstream_dsf(STREAMFILE * streamFile);
 
 VGMSTREAM * init_vgmstream_208(STREAMFILE * streamFile);
 
+VGMSTREAM * init_vgmstream_ffdl(STREAMFILE * streamFile);
+
 #endif /*_META_H*/

src/vgmstream.c

@@ -466,6 +466,7 @@ VGMSTREAM * (*init_vgmstream_functions[])(STREAMFILE *streamFile) = {
     init_vgmstream_dsf,
     init_vgmstream_208,
     init_vgmstream_dsp_ds2,
+    init_vgmstream_ffdl,
 
     /* 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 */