/* * http://en.wikipedia.org/wiki/ID3 * Space-padded strings are mentioned there. This is wrong and is a lie. */#include "tagspriv.h" enum{	Insz = 128,	Outsz = 61,}; inttagid3v1(Tagctx *ctx){	uint8_t *in, *out; 	if(ctx->bufsz < Insz+Outsz)		return -1;	in = (uint8_t*)ctx->buf;	out = in + Insz; 	if(ctx->seek(ctx, -Insz, 2) < 0)		return -1;	if(ctx->read(ctx, in, Insz) != Insz || memcmp(in, "TAG", 3) != 0)		return -1; 	if((ctx->found & 1<<Ttitle) == 0 && iso88591toutf8(out, Outsz, &in[3], 30) > 0)		txtcb(ctx, Ttitle, "", out);	if((ctx->found & 1<<Tartist) == 0 && iso88591toutf8(out, Outsz, &in[33], 30) > 0)		txtcb(ctx, Tartist, "", out);	if((ctx->found & 1<<Talbum) == 0 && iso88591toutf8(out, Outsz, &in[63], 30) > 0)		txtcb(ctx, Talbum, "", out); 	in[93+4] = 0;	if((ctx->found & 1<<Tdate) == 0 && in[93] != 0)		txtcb(ctx, Tdate, "", &in[93]); 	if((ctx->found & 1<<Tcomment) == 0 && in[97] != 0)		txtcb(ctx, Tcomment, "", &in[97]); 	if((ctx->found & 1<<Ttrack) == 0 && in[125] == 0 && in[126] > 0){		snprintf((char*)out, Outsz, "%d", in[126]);		txtcb(ctx, Ttrack, "", out);	} 	if((ctx->found & 1<<Tgenre) == 0 && in[127] < Numgenre)		txtcb(ctx, Tgenre, "", id3genres[in[127]]); 	return 0;}