62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
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#include "nsid3v2.h"
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#include "nsid3v2/header.h"
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#include "nsid3v2/tag.h"
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#include "nsid3v2/frame_utils.h"
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#include "nu/ByteReader.h"
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#include "nx/nxstring.h"
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#if defined(_WIN32) && !defined(strcasecmp)
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#define strcasecmp _stricmp
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#else
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#include <strings.h>
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#endif
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struct ParsedPrivate
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{
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ParsedString owner;
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const void *private_data;
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size_t private_byte_length;
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};
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static int ParsePrivate(const void *data, size_t data_len, ParsedPrivate &parsed)
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{
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if (data_len == 0)
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return NErr_Insufficient;
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bytereader_value_t byte_reader;
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bytereader_init(&byte_reader, data, data_len);
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int ret = ParseNullTerminatedString(&byte_reader, 0, parsed.owner);
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if (ret != NErr_Success)
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return ret;
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parsed.private_data = bytereader_pointer(&byte_reader);
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parsed.private_byte_length = bytereader_size(&byte_reader);
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return NErr_Success;
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}
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int NSID3v2_Frame_Private_Get(const nsid3v2_frame_t f, nx_string_t *description, const void **out_data, size_t *length)
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{
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const ID3v2::Frame *frame = (const ID3v2::Frame *)f;
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if (frame)
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{
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const void *data;
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size_t data_len;
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ParsedPrivate parsed;
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if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParsePrivate(data, data_len, parsed) == NErr_Success)
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{
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int ret = NXStringCreateFromParsedString(description, parsed.owner, 0);
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if (ret != NErr_Success)
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return ret;
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*out_data = parsed.private_data;
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*length = parsed.private_byte_length;
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return NErr_Success;
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}
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}
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return NErr_Empty;
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}
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