Initial community commit

1 files changed, 86 insertions, 0 deletions

diff --git a/Src/replicant/nsid3v2/frame_object.cpp b/Src/replicant/nsid3v2/frame_object.cpp
new file mode 100644
index 00000000..7a6500f3
--- /dev/null
+++ b/Src/replicant/nsid3v2/frame_object.cpp
@@ -0,0 +1,86 @@
+#include "nsid3v2.h"
+#include "nsid3v2/header.h"
+#include "nsid3v2/tag.h"
+#include "nsid3v2/frame_utils.h"
+#include "nu/ByteReader.h"
+#include "nx/nxstring.h"
+#if defined(_WIN32) && !defined(strcasecmp)
+#define strcasecmp _stricmp
+#else
+#include <strings.h>
+#endif
+
+struct ParsedObject
+{
+	ParsedString mime;
+	ParsedString filename;
+	ParsedString description;
+	const void *object_data;
+	size_t object_byte_length;
+};
+
+static int ParseObject(const void *data, size_t data_len, ParsedObject &parsed)
+{
+	int ret;
+	if (data_len == 0)
+		return NErr_Insufficient;
+
+	bytereader_value_t byte_reader;
+	bytereader_init(&byte_reader, data, data_len);
+
+	/* encoding */
+	uint8_t encoding = bytereader_read_u8(&byte_reader);
+
+	/* read mime type (Always latin-1) */
+	ret = ParseNullTerminatedString(&byte_reader, 0, parsed.mime);
+	if (ret != NErr_Success)
+		return ret;
+
+	/* read filename */
+	ret = ParseNullTerminatedString(&byte_reader, encoding, parsed.filename);
+	if (ret != NErr_Success)
+		return ret;
+
+	/* read content description */
+	ret = ParseNullTerminatedString(&byte_reader, encoding, parsed.description);
+	if (ret != NErr_Success)
+		return ret;
+
+
+	parsed.object_data = bytereader_pointer(&byte_reader);
+	parsed.object_byte_length = bytereader_size(&byte_reader);
+
+	return NErr_Success;
+}
+
+int NSID3v2_Frame_Object_Get(const nsid3v2_frame_t f, nx_string_t *mime, nx_string_t *filename, nx_string_t *description, const void **out_data, size_t *length, int text_flags)
+{
+	const ID3v2::Frame *frame = (const ID3v2::Frame *)f;
+	if (frame)
+	{
+		const void *data;
+		size_t data_len;
+		ParsedObject parsed;
+		if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParseObject(data, data_len, parsed) == NErr_Success)
+		{
+			int ret = NXStringCreateFromParsedString(mime, parsed.mime, text_flags);
+			if (ret != NErr_Success)
+				return ret;
+
+			ret = NXStringCreateFromParsedString(filename, parsed.filename, text_flags);
+			if (ret != NErr_Success)
+				return ret;
+
+			ret = NXStringCreateFromParsedString(description, parsed.description, text_flags);
+			if (ret != NErr_Success)
+				return ret;
+
+			*out_data = parsed.object_data;
+			*length = parsed.object_byte_length;
+
+			return NErr_Success;
+		}
+
+	}
+	return NErr_Empty;
+}