mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-09-24 15:54:12 +00:00
247 lines
6.9 KiB
C++
247 lines
6.9 KiB
C++
#include "nsid3v2.h"
|
|
#include "nsid3v2/header.h"
|
|
#include "nsid3v2/tag.h"
|
|
#include "nsid3v2/frame_utils.h"
|
|
#include "nu/ByteReader.h"
|
|
#include "nu/ByteWriter.h"
|
|
#include "nx/nxstring.h"
|
|
|
|
struct ParsedPicture
|
|
{
|
|
ParsedString mime;
|
|
uint8_t picture_type;
|
|
ParsedString description;
|
|
const void *picture_data;
|
|
size_t picture_byte_length;
|
|
};
|
|
|
|
static int ParsePicture(const void *data, size_t data_len, ParsedPicture &parsed)
|
|
{
|
|
int ret;
|
|
if (data_len < 4)
|
|
return NErr_NeedMoreData;
|
|
|
|
bytereader_value_t byte_reader;
|
|
bytereader_init(&byte_reader, data, data_len);
|
|
|
|
uint8_t encoding = bytereader_read_u8(&byte_reader);
|
|
/* mime type is always latin-1 */
|
|
ret = ParseNullTerminatedString(&byte_reader, 0, parsed.mime);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
|
|
if (bytereader_size(&byte_reader) < 2)
|
|
return NErr_NeedMoreData;
|
|
|
|
parsed.picture_type = bytereader_read_u8(&byte_reader);
|
|
|
|
ret = ParseNullTerminatedString(&byte_reader, encoding, parsed.description);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
|
|
parsed.picture_data = bytereader_pointer(&byte_reader);
|
|
parsed.picture_byte_length = bytereader_size(&byte_reader);
|
|
return NErr_Success;
|
|
}
|
|
|
|
static int ParsePicturev2_2(const void *data, size_t data_len, ParsedPicture &parsed)
|
|
{
|
|
int ret;
|
|
if (data_len < 6)
|
|
return NErr_NeedMoreData;
|
|
|
|
bytereader_value_t byte_reader;
|
|
bytereader_init(&byte_reader, data, data_len);
|
|
|
|
uint8_t encoding = bytereader_read_u8(&byte_reader);
|
|
|
|
/* three byte "Image Format" field */
|
|
parsed.mime.encoding = 0;
|
|
parsed.mime.data = bytereader_pointer(&byte_reader);
|
|
parsed.mime.byte_length = 3;
|
|
|
|
bytereader_advance(&byte_reader, 3);
|
|
|
|
parsed.picture_type = bytereader_read_u8(&byte_reader);
|
|
|
|
ret = ParseNullTerminatedString(&byte_reader, encoding, parsed.description);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
|
|
parsed.picture_data = bytereader_pointer(&byte_reader);
|
|
parsed.picture_byte_length = bytereader_size(&byte_reader);
|
|
return NErr_Success;
|
|
}
|
|
|
|
int NSID3v2_Frame_Picture_Get(const nsid3v2_frame_t f, nx_string_t *mime, uint8_t *picture_type, nx_string_t *description, const void **picture_data, size_t *length, int text_flags)
|
|
{
|
|
const ID3v2::Frame *frame = (const ID3v2::Frame *)f;
|
|
if (frame)
|
|
{
|
|
const void *data;
|
|
size_t data_len;
|
|
ParsedPicture parsed;
|
|
if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0)
|
|
{
|
|
int ret;
|
|
if (frame->GetVersion() == 2)
|
|
ret = ParsePicturev2_2(data, data_len, parsed);
|
|
else
|
|
ret = ParsePicture(data, data_len, parsed);
|
|
|
|
if (ret == NErr_Success)
|
|
{
|
|
int ret;
|
|
if (mime)
|
|
{
|
|
ret = NXStringCreateFromParsedString(mime, parsed.mime, text_flags);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
}
|
|
|
|
if (description)
|
|
{
|
|
ret = NXStringCreateFromParsedString(description, parsed.description, text_flags);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
}
|
|
|
|
if (picture_type)
|
|
*picture_type = parsed.picture_type;
|
|
|
|
if (picture_data)
|
|
*picture_data = parsed.picture_data;
|
|
if (length)
|
|
*length = parsed.picture_byte_length;
|
|
|
|
return NErr_Success;
|
|
}
|
|
else
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
}
|
|
return NErr_Empty;
|
|
}
|
|
|
|
/* ---------------- Setters ---------------- */
|
|
static const char *GetMIME2_2(nx_string_t mime)
|
|
{
|
|
if (!mime)
|
|
return "\0\0\0";
|
|
|
|
if (NXStringKeywordCompareWithCString(mime, "image/jpeg") == NErr_True || NXStringKeywordCompareWithCString(mime, "image/jpg") == NErr_True)
|
|
return "JPG";
|
|
|
|
if (NXStringKeywordCompareWithCString(mime, "image/png") == NErr_True)
|
|
return "PNG";
|
|
|
|
if (NXStringKeywordCompareWithCString(mime, "image/gif") == NErr_True)
|
|
return "GIF";
|
|
|
|
if (NXStringKeywordCompareWithCString(mime, "image/bmp") == NErr_True)
|
|
return "BMP";
|
|
|
|
return "\0\0\0";
|
|
}
|
|
|
|
int NSID3v2_Frame_Picture_Set(nsid3v2_frame_t f, nx_string_t mime, uint8_t picture_type, nx_string_t description, const void *picture_data, size_t length, int text_flags)
|
|
{
|
|
ID3v2::Frame *frame = (ID3v2::Frame *)f;
|
|
if (frame)
|
|
{
|
|
if (frame->GetVersion() == 2)
|
|
{
|
|
/* first, we need to get the total encoded size */
|
|
|
|
size_t byte_count_description=0;
|
|
if (description)
|
|
{
|
|
int ret = NXStringGetBytesSize(&byte_count_description, description, nx_charset_latin1, 0);
|
|
if (ret != NErr_DirectPointer && ret != NErr_Success)
|
|
return ret;
|
|
}
|
|
|
|
size_t total_size = 1 /* text encoding */
|
|
+ 3 /* Image Format is 3 bytes in ID3v2.2*/
|
|
+ 1 /* picture type */
|
|
+ byte_count_description + 1 /* description + null terminator */
|
|
+ length; /* picture length */
|
|
|
|
void *data;
|
|
size_t data_size;
|
|
int ret = frame->NewData(total_size, &data, &data_size);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
|
|
size_t bytes_copied;
|
|
bytewriter_s byte_writer;
|
|
bytewriter_init(&byte_writer, data, data_size);
|
|
bytewriter_write_u8(&byte_writer, 0); /* mark as Latin-1 */
|
|
bytewriter_write_n(&byte_writer, GetMIME2_2(mime), 3);
|
|
bytewriter_write_u8(&byte_writer, picture_type);
|
|
if (description)
|
|
{
|
|
NXStringGetBytes(&bytes_copied, description, bytewriter_pointer(&byte_writer), bytewriter_size(&byte_writer), nx_charset_latin1, 0);
|
|
bytewriter_advance(&byte_writer, bytes_copied);
|
|
}
|
|
bytewriter_write_u8(&byte_writer, 0); /* description null terminator */
|
|
bytewriter_write_n(&byte_writer, picture_data, length);
|
|
return NErr_Success;
|
|
}
|
|
else
|
|
{
|
|
/* first, we need to get the total encoded size */
|
|
size_t byte_count_mime=0;
|
|
if (mime)
|
|
{
|
|
int ret = NXStringGetBytesSize(&byte_count_mime, mime, nx_charset_latin1, 0);
|
|
if (ret != NErr_DirectPointer && ret != NErr_Success)
|
|
return ret;
|
|
}
|
|
|
|
size_t byte_count_description=0;
|
|
if (description)
|
|
{
|
|
int ret = NXStringGetBytesSize(&byte_count_description, description, nx_charset_latin1, 0);
|
|
if (ret != NErr_DirectPointer && ret != NErr_Success)
|
|
return ret;
|
|
}
|
|
|
|
size_t total_size = 1 /* text encoding */
|
|
+ byte_count_mime + 1 /* mime + null terminator */
|
|
+ 1 /* picture type */
|
|
+ byte_count_description + 1 /* description + null terminator */
|
|
+ length; /* picture length */
|
|
|
|
void *data;
|
|
size_t data_size;
|
|
int ret = frame->NewData(total_size, &data, &data_size);
|
|
if (ret != NErr_Success)
|
|
return ret;
|
|
|
|
size_t bytes_copied;
|
|
bytewriter_s byte_writer;
|
|
bytewriter_init(&byte_writer, data, data_size);
|
|
bytewriter_write_u8(&byte_writer, 0); /* mark as Latin-1 */
|
|
if (mime)
|
|
{
|
|
NXStringGetBytes(&bytes_copied, mime, bytewriter_pointer(&byte_writer), bytewriter_size(&byte_writer), nx_charset_latin1, 0);
|
|
bytewriter_advance(&byte_writer, bytes_copied);
|
|
}
|
|
bytewriter_write_u8(&byte_writer, 0); /* MIME null terminator */
|
|
bytewriter_write_u8(&byte_writer, picture_type);
|
|
if (description)
|
|
{
|
|
NXStringGetBytes(&bytes_copied, description, bytewriter_pointer(&byte_writer), bytewriter_size(&byte_writer), nx_charset_latin1, 0);
|
|
bytewriter_advance(&byte_writer, bytes_copied);
|
|
}
|
|
bytewriter_write_u8(&byte_writer, 0); /* description null terminator */
|
|
bytewriter_write_n(&byte_writer, picture_data, length);
|
|
return NErr_Success;
|
|
}
|
|
}
|
|
return NErr_Empty;
|
|
}
|