1 files changed, 66 insertions, 0 deletions
diff --git a/lib/vgmstream/src/meta/acm.c b/lib/vgmstream/src/meta/acm.c
new file mode 100644
index 0000000000..c58e596788
--- /dev/null
+++ b/lib/vgmstream/src/meta/acm.c
@@ -0,0 +1,66 @@
+#include "../vgmstream.h"
+#include "meta.h"
+#include "../util.h"
+#include "../coding/acm_decoder.h"
+
+/* InterPlay ACM */
+/* The real work is done by libacm */
+VGMSTREAM * init_vgmstream_acm(STREAMFILE *streamFile) {
+    VGMSTREAM * vgmstream = NULL;
+    ACMStream *acm_stream = NULL;
+    mus_acm_codec_data *data;
+
+    char filename[260];
+
+    int loop_flag = 0;
+	int channel_count;
+
+    /* check extension, case insensitive */
+    streamFile->get_name(streamFile,filename,sizeof(filename));
+    if (strcasecmp("acm",filename_extension(filename))) goto fail;
+
+	/* check header */
+    if (read_32bitBE(0x0,streamFile) != 0x97280301)
+		goto fail;
+
+    data = calloc(1,sizeof(mus_acm_codec_data));
+    if (!data) goto fail;
+
+    data->files = calloc(1,sizeof(ACMStream *));
+    if (!data->files) {
+        free(data); data = NULL;
+        goto fail;
+    }
+
+    /* gonna do this a little backwards, open and parse the file
+       before creating the vgmstream */
+
+    if (acm_open_decoder(&acm_stream,streamFile,filename) != ACM_OK) {
+        goto fail;
+    }
+
+    channel_count = acm_stream->info.channels;
+    vgmstream = allocate_vgmstream(channel_count,loop_flag);
+    if (!vgmstream) goto fail;
+
+    vgmstream->channels = channel_count;
+    vgmstream->sample_rate = acm_stream->info.rate;
+    vgmstream->coding_type = coding_ACM;
+    vgmstream->num_samples = acm_stream->total_values / acm_stream->info.channels;
+    vgmstream->layout_type = layout_acm;
+    vgmstream->meta_type = meta_ACM;
+
+    data->file_count = 1;
+    data->current_file = 0;
+    data->files[0] = acm_stream;
+    /*data->end_file = -1;*/
+
+    vgmstream->codec_data = data;
+
+    return vgmstream;
+
+    /* clean up anything we may have opened */
+fail:
+    if (vgmstream) close_vgmstream(vgmstream);
+    return NULL;
+}