Initial commit

1 files changed, 71 insertions, 0 deletions

diff --git a/src/c_asndfile_virtual.c b/src/c_asndfile_virtual.c
new file mode 100644
index 0000000..a7bd941
--- /dev/null
+++ b/src/c_asndfile_virtual.c
@@ -0,0 +1,71 @@
+
+
+//  Programmed by Jedidiah Barber
+//  Released into the public domain
+
+
+#include <sndfile.h>
+#include "c_asndfile_virtual.h"
+
+
+
+sf_count_t c_filelen_hook(void * user_data) {
+    return (sf_count_t) ada_filelen_hook(user_data);
+}
+
+
+sf_count_t c_seek_hook(sf_count_t offset, int whence, void * user_data) {
+    return (sf_count_t) ada_seek_hook((int64_t) offset, whence, user_data);
+}
+
+
+sf_count_t c_read_hook(void * ptr, sf_count_t count, void * user_data) {
+    return (sf_count_t) ada_read_hook(ptr, (int64_t) count, user_data);
+}
+
+
+sf_count_t c_write_hook(const void * ptr, sf_count_t count, void * user_data) {
+    return (sf_count_t) ada_write_hook(ptr, (int64_t) count, user_data);
+}
+
+
+sf_count_t c_tell_hook(void * user_data) {
+    return (sf_count_t) ada_tell_hook(user_data);
+}
+
+
+SF_VIRTUAL_IO hooks = {
+    .get_filelen = &c_filelen_hook,
+    .seek = &c_seek_hook,
+    .read = &c_read_hook,
+    .write = &c_write_hook,
+    .tell = &c_tell_hook
+};
+
+
+SNDFILE * asf_open_virtual(int mode, Asf_Info * sfinfo, void * user_data) {
+    SF_INFO actual;
+
+    actual.frames = (sf_count_t)sfinfo->frames;
+    actual.samplerate = sfinfo->samplerate;
+    actual.channels = sfinfo->channels;
+    actual.format = sfinfo->major & sfinfo->minor & sfinfo->endian;
+    actual.sections = sfinfo->sections;
+    actual.seekable = sfinfo->seekable;
+
+    SNDFILE * result = sf_open_virtual(&hooks, mode, &actual, user_data);
+    if (result == NULL) { return NULL; }
+
+    sfinfo->frames = (long long)actual.frames;
+    sfinfo->samplerate = actual.samplerate;
+    sfinfo->channels = actual.channels;
+    sfinfo->major = actual.format & SF_FORMAT_TYPEMASK;
+    sfinfo->minor = actual.format & SF_FORMAT_SUBMASK;
+    sfinfo->endian = actual.format & SF_FORMAT_ENDMASK;
+    sfinfo->sections = actual.sections;
+    sfinfo->seekable = actual.seekable;
+
+    return result;
+}
+
+