96 lines
2.7 KiB
C++
96 lines
2.7 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 "nu/ByteReader.h"
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#include "nx/nxstring.h"
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#include "nu/ByteWriter.h"
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#include "nsid3v2/frame_utils.h"
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static int ParseText(const void *data, size_t data_len, ParsedString &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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return ParseFrameTerminatedString(&byte_reader, bytereader_read_u8(&byte_reader), parsed);
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}
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int NSID3v2_Frame_Text_Get(const nsid3v2_frame_t f, nx_string_t *value, int text_flags)
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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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ParsedString parsed;
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if (frame->GetData(&data, &data_len) == NErr_Success && data_len > 0 && ParseText(data, data_len, parsed) == NErr_Success)
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{
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return NXStringCreateFromParsedString(value, parsed, text_flags);
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}
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}
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return NErr_Empty;
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}
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int NSID3v2_Tag_Text_Get(const nsid3v2_tag_t t, int frame_enum, nx_string_t *value, int text_flags)
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{
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const ID3v2::Tag *tag = (const ID3v2::Tag *)t;
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if (!tag)
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return NErr_Empty;
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const ID3v2::Frame *frame = tag->FindFirstFrame(frame_enum);
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return NSID3v2_Frame_Text_Get((const nsid3v2_frame_t)frame, value, text_flags);
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}
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/* ---------------- Setters ---------------- */
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int NSID3v2_Frame_Text_Set(nsid3v2_frame_t f, nx_string_t value, int text_flags)
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{
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ID3v2::Frame *frame = (ID3v2::Frame *)f;
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if (frame)
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{
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/* benski> for now, we're going to store UTF-16LE always. in the future, we'll add functions to NXString to determine a 'best' encoding */
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size_t byte_count=0;
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int ret = NXStringGetBytesSize(&byte_count, value, nx_charset_utf16le, 0);
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if (ret != NErr_DirectPointer && ret != NErr_Success)
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return ret;
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void *data;
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size_t data_len;
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byte_count+=3; // need one byte for encoding type, two bytes for BOM
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ret = frame->NewData(byte_count, &data, &data_len);
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if (ret != NErr_Success)
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return ret;
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bytewriter_s byte_writer;
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bytewriter_init(&byte_writer, data, data_len);
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bytewriter_write_u8(&byte_writer, 1); /* mark as UTF-16LE */
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bytewriter_write_u16_le(&byte_writer, 0xFEFF); /* BOM */
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size_t bytes_copied;
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return NXStringGetBytes(&bytes_copied, value, bytewriter_pointer(&byte_writer), bytewriter_size(&byte_writer), nx_charset_utf16le, 0);
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}
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return NErr_Empty;
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}
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int NSID3v2_Tag_Text_Set(nsid3v2_tag_t t, int frame_enum, nx_string_t value, int text_flags)
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{
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ID3v2::Tag *tag = (ID3v2::Tag *)t;
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if (!tag)
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return NErr_Empty;
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ID3v2::Frame *frame = tag->FindFirstFrame(frame_enum);
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if (!frame)
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{
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frame = tag->NewFrame(frame_enum, 0);
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if (!frame)
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return NErr_OutOfMemory;
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tag->AddFrame(frame);
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}
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return NSID3v2_Frame_Text_Set((nsid3v2_frame_t)frame, value, text_flags);
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}
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