Initial community commit

Src/replicant/nsid3v2/windows/frame_apic.cpp

@@ -0,0 +1,170 @@
+#include "nsid3v2.h"
+#include "nsid3v2/header.h"
+#include "nsid3v2/tag.h"
+#include "nsid3v2/frame_utils.h"
+#include <api/memmgr/api_memmgr.h>
+#include <strsafe.h>
+
+struct ParsedPicture
+{
+	uint8_t encoding; // 0 - iso-8859-1, 1 - UTF16LE, 2 - UTF16BE, 3 - UTF8
+	const char *mime_type;
+	size_t mime_cch;
+	uint8_t picture_type;
+	union 
+	{
+		const char *as8;
+		const wchar_t *as16;
+	} description_data;
+	size_t description_cch;
+	const void *picture_data;
+	size_t picture_bytes;
+};
+
+static int ParsePicture(const void *data, size_t data_len, ParsedPicture &parsed)
+{
+	const uint8_t *data8 = (const uint8_t *)data;
+	parsed.encoding = data8[0];
+	parsed.mime_type = (const char *)&data8[1];
+	data_len--;
+	ParseDescription(parsed.mime_type, data_len, parsed.mime_cch);
+	parsed.picture_type = data8[2+parsed.mime_cch];
+	data_len--;
+
+	switch(parsed.encoding)
+	{
+	case 0: // ISO-8859-1
+		ParseDescription(parsed.description_data.as8, parsed.description_cch, data_len);
+		parsed.picture_data = parsed.description_data.as8 + parsed.description_cch + 1;
+		parsed.picture_bytes = data_len;
+		return NErr_Success;
+	case 1: // UTF-16
+		ParseDescription(parsed.description_data.as16, parsed.description_cch, data_len, parsed.encoding);
+		parsed.picture_data = parsed.description_data.as8 + parsed.description_cch + 1;
+		parsed.picture_bytes = data_len;
+		return NErr_Success;
+
+	case 2: // UTF-16 BE
+		ParseDescription(parsed.description_data.as16, parsed.description_cch, data_len, parsed.encoding);
+		parsed.picture_data = parsed.description_data.as8 + parsed.description_cch + 1;
+		parsed.picture_bytes = data_len;
+		return NErr_Success;
+	case 3: // UTF-8
+		ParseDescription(parsed.description_data.as8, parsed.description_cch, data_len);
+		parsed.picture_data = parsed.description_data.as8 + parsed.description_cch + 1;
+		parsed.picture_bytes = data_len;
+		return NErr_Success;
+	}
+	return NErr_NotImplemented;
+}
+
+int NSID3v2_Tag_APIC_GetPicture(const nsid3v2_tag_t t, uint8_t picture_type, void *_memmgr, wchar_t **mime_type, void **picture_data, size_t *picture_bytes)
+{
+	api_memmgr *memmgr = (api_memmgr *)_memmgr;
+	const ID3v2::Tag *tag = (const ID3v2::Tag *)t;
+	const ID3v2::Frame *frame = tag->FindFirstFrame(NSID3V2_FRAME_PICTURE);
+	while (frame)
+	{
+		const void *data;
+		size_t data_len;
+		ParsedPicture parsed;
+		if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParsePicture(data, data_len, parsed) == NErr_Success && parsed.picture_type == picture_type)
+		{
+			const char *type = strchr(parsed.mime_type, '/');
+
+			if (type && *type)
+			{
+				type++;
+				int typelen = MultiByteToWideChar(CP_ACP, 0, type, -1, 0, 0);
+				*mime_type = (wchar_t *)memmgr->sysMalloc(typelen * sizeof(wchar_t));
+				MultiByteToWideChar(CP_ACP, 0, type, -1, *mime_type, typelen);
+			}
+			else
+				*mime_type = 0; // unknown!
+
+			*picture_bytes = parsed.picture_bytes;
+			*picture_data = memmgr->sysMalloc(parsed.picture_bytes);
+			memcpy(*picture_data, parsed.picture_data, parsed.picture_bytes);
+			return NErr_Success;
+		}
+		frame = tag->FindNextFrame(frame);
+	}
+
+	return NErr_Error;
+}
+
+
+int NSID3v2_Tag_APIC_GetFirstPicture(const nsid3v2_tag_t t, void *_memmgr, wchar_t **mime_type, void **picture_data, size_t *picture_bytes)
+{
+	api_memmgr *memmgr = (api_memmgr *)_memmgr;
+	const ID3v2::Tag *tag = (const ID3v2::Tag *)t;
+	const ID3v2::Frame *frame = tag->FindFirstFrame(NSID3V2_FRAME_PICTURE);
+	while (frame)
+	{
+		const void *data;
+		size_t data_len;
+		ParsedPicture parsed;
+		if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParsePicture(data, data_len, parsed) == NErr_Success)
+		{
+			const char *type = strchr(parsed.mime_type, '/');
+
+			if (type && *type)
+			{
+				type++;
+				int typelen = MultiByteToWideChar(CP_ACP, 0, type, -1, 0, 0);
+				*mime_type = (wchar_t *)memmgr->sysMalloc(typelen * sizeof(wchar_t));
+				MultiByteToWideChar(CP_ACP, 0, type, -1, *mime_type, typelen);
+			}
+			else
+				*mime_type = 0; // unknown!
+
+			*picture_bytes = parsed.picture_bytes;
+			*picture_data = memmgr->sysMalloc(parsed.picture_bytes);
+			memcpy(*picture_data, parsed.picture_data, parsed.picture_bytes);
+			return NErr_Success;
+		}
+		frame = tag->FindNextFrame(frame);
+	}
+
+	return NErr_Error;
+}
+
+int NSID3v2_Tag_APIC_GetFrame(const nsid3v2_tag_t t, uint8_t picture_type, nsid3v2_frame_t *f)
+{
+	const ID3v2::Tag *tag = (const ID3v2::Tag *)t;
+	const ID3v2::Frame *frame = tag->FindFirstFrame(NSID3V2_FRAME_PICTURE);
+	while (frame)
+	{
+		const void *data;
+		size_t data_len;
+		ParsedPicture parsed;
+		if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParsePicture(data, data_len, parsed) == NErr_Success && parsed.picture_type == picture_type)
+		{
+			*f = (nsid3v2_frame_t)frame;
+			return NErr_Success;
+		}
+		frame = tag->FindNextFrame(frame);
+	}
+
+	return NErr_Error;
+}
+
+int NSID3v2_Tag_APIC_GetFirstFrame(const nsid3v2_tag_t t, nsid3v2_frame_t *f)
+{
+	const ID3v2::Tag *tag = (const ID3v2::Tag *)t;
+	const ID3v2::Frame *frame = tag->FindFirstFrame(NSID3V2_FRAME_PICTURE);
+	while (frame)
+	{
+		const void *data;
+		size_t data_len;
+		ParsedPicture parsed;
+		if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParsePicture(data, data_len, parsed) == NErr_Success)
+		{
+			*f = (nsid3v2_frame_t)frame;
+			return NErr_Success;
+		}
+		frame = tag->FindNextFrame(frame);
+	}
+
+	return NErr_Error;
+}