winamp/Src/replicant/nsid3v1/nsid3v1.cpp

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2024-09-24 12:54:57 +00:00
#include "nsid3v1.h"
#include "tag.h"
#include "foundation/error.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <new>
int NSID3v1_Header_Valid(const void *data, size_t len)
{
// return NErr_True or NErr_False depending on whether or not you detect that it's valid ID3v1
if (memcmp(data, "TAG", 3) == 0)
{
return NErr_True;
}
return NErr_False;
}
int NSID3v1_Tag_Create(const void *data, size_t len, nsid3v1_tag_t *out_tag)
{
ID3v1::Tag *tag = new (std::nothrow) ID3v1::Tag();
if (!tag)
return NErr_OutOfMemory;
int ret = tag->Parse(data, len);
if (ret != NErr_Success)
return ret;
*out_tag = (nsid3v1_tag_t)tag;
return NErr_Success;
}
int NSID3v1_Tag_New(nsid3v1_tag_t *out_tag)
{
ID3v1::Tag *tag = new (std::nothrow) ID3v1::Tag();
if (!tag)
return NErr_OutOfMemory;
tag->New();
*out_tag = (nsid3v1_tag_t)tag;
return NErr_Success;
}
int NSID3v1_Tag_Serialize(const nsid3v1_tag_t t, void *data, size_t len)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!tag)
return NErr_BadParameter;
return tag->Serialize(data, len);
}
int NSID3v1_Tag_Destroy(nsid3v1_tag_t t)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!tag)
return NErr_BadParameter;
delete tag;
return NErr_Success;
}
// Field getters
int NSID3v1_Field_Text_Get(const nsid3v1_tag_t t, const int field, nx_string_t *out_value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
char track_num[4] = { 0, 0, 0 };
if (tag)
{
switch (field)
{
case NSID3V1_TITLE:
return NSID3v1_Get_Title(t, out_value);
case NSID3V1_ARTIST:
return NSID3v1_Get_Artist(t, out_value);
case NSID3V1_ALBUM:
return NSID3v1_Get_Album(t, out_value);
case NSID3V1_YEAR:
return NSID3v1_Get_Year(t, out_value);
case NSID3V1_COMMENT:
return NSID3v1_Get_Comment(t, out_value);
case NSID3V1_TRACK:
return NSID3v1_Get_Track(t, out_value);
//case NSID3V1_GENRE:
//return NSID3v1_Get_Genre(t, out_value);
default:
return NErr_Unknown;
}
}
else
return NErr_Empty;
}
int NSID3v1_Get_Title(nsid3v1_tag_t t, nx_string_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
size_t value_length = tag->GetTitleLength();
if (value_length > 0)
return NXStringCreateWithBytes(value, tag->GetTitle(), value_length, nx_charset_latin1);
else
return NErr_Empty;
return NErr_Success;
}
return NErr_Empty;
}
int NSID3v1_Get_Artist(nsid3v1_tag_t t, nx_string_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
size_t value_length = tag->GetArtistLength();
if (value_length > 0)
return NXStringCreateWithBytes(value, tag->GetArtist(), value_length, nx_charset_latin1);
else
return NErr_Empty;
return NErr_Success;
}
return NErr_Empty;
}
int NSID3v1_Get_Album(nsid3v1_tag_t t, nx_string_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
size_t value_length = tag->GetAlbumLength();
if (value_length > 0)
return NXStringCreateWithBytes(value, tag->GetAlbum(), value_length, nx_charset_latin1);
else
return NErr_Empty;
return NErr_Success;
}
return NErr_Empty;
}
int NSID3v1_Get_Year(nsid3v1_tag_t t, nx_string_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
size_t value_length = tag->GetYearLength();
if (value_length > 0)
return NXStringCreateWithBytes(value, tag->GetYear(), value_length, nx_charset_latin1);
else
return NErr_Empty;
}
return NErr_Empty;
}
int NSID3v1_Get_Comment(nsid3v1_tag_t t, nx_string_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
size_t value_length = tag->GetCommentLength();
if (value_length > 0)
return NXStringCreateWithBytes(value, tag->GetComment(), value_length, nx_charset_latin1);
else
return NErr_Empty;
}
return NErr_Empty;
}
int NSID3v1_Get_Track(nsid3v1_tag_t t, nx_string_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
unsigned char track = tag->GetTrack();
if (track > 0)
return NXStringCreateWithUInt64(value, track);
else
return NErr_Empty;
return NErr_Success;
}
return NErr_Empty;
}
int NSID3v1_Int_Get_Year(nsid3v1_tag_t t, unsigned int *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
char year[5];
memcpy(year, tag->GetYear(), 4);
year[4]=0;
*value = strtoul(year, 0, 10);
return NErr_Success;
}
return NErr_Empty;
}
int NSID3v1_Int_Get_Track(nsid3v1_tag_t t, uint8_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
*value = tag->GetTrack();
return NErr_Success;
}
return NErr_Empty;
}
int NSID3v1_Int_Get_Genre(nsid3v1_tag_t t, uint8_t *value)
{
const ID3v1::Tag *tag = (const ID3v1::Tag *)t;
if (tag)
{
*value = tag->GetGenre();
return NErr_Success;
}
return NErr_Empty;
}
/* ================= setters ================= */
typedef void (ID3v1::Tag::*Setter)(const char *, size_t length);
template <size_t limit>
static int SetFromString(ID3v1::Tag *tag, Setter setter, nx_string_t value)
{
if (!value)
{
(tag->*setter)(0, 0);
return NErr_Success;
}
char temp[limit];
size_t bytes_copied;
int ret = NXStringGetBytes(&bytes_copied, value, temp, limit, nx_charset_latin1, 0);
if (ret != NErr_Success)
return ret;
(tag->*setter)(temp, bytes_copied);
return NErr_Success;
}
int NSID3v1_Set_Title(nsid3v1_tag_t t, nx_string_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
return SetFromString<30>(tag, &ID3v1::Tag::SetTitle, value);
}
int NSID3v1_Set_Artist(nsid3v1_tag_t t, nx_string_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
return SetFromString<30>(tag, &ID3v1::Tag::SetArtist, value);
}
int NSID3v1_Set_Album(nsid3v1_tag_t t, nx_string_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
return SetFromString<30>(tag, &ID3v1::Tag::SetAlbum, value);
}
int NSID3v1_Set_Year(nsid3v1_tag_t t, nx_string_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
return SetFromString<4>(tag, &ID3v1::Tag::SetYear, value);
}
int NSID3v1_Set_Comment(nsid3v1_tag_t t, nx_string_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
return SetFromString<28>(tag, &ID3v1::Tag::SetComment, value);
}
int NSID3v1_Set_Track(nsid3v1_tag_t t, nx_string_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
if (!value)
{
tag->SetTrack(0);
return NErr_Success;
}
int temp=0;
int ret = NXStringGetIntegerValue(value, &temp);
if (ret != NErr_Success)
return ret;
if (temp < 0 || temp > 255)
return NErr_ParameterOutOfRange;
tag->SetTrack((uint8_t)temp);
return NErr_Success;
}
int NSID3v1_Int_Set_Year(nsid3v1_tag_t t, unsigned int value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
if (value > 9999)
return NErr_ParameterOutOfRange;
char temp[5];
sprintf(temp, "%u", value);
tag->SetYear(temp, 4);
return NErr_Success;
}
int NSID3v1_Int_Set_Track(nsid3v1_tag_t t, uint8_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
tag->SetTrack(value);
return NErr_Success;
}
int NSID3v1_Int_Set_Genre(nsid3v1_tag_t t, uint8_t value)
{
ID3v1::Tag *tag = (ID3v1::Tag *)t;
if (!t)
return NErr_BadParameter;
tag->SetGenre(value);
return NErr_Success;
}