tag_processor.cpp

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#include "foobar2000.h"

void tag_processor_trailing::write_id3v1(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort)
{
    write(p_file,p_info,flag_id3v1,p_abort);
}

void tag_processor_trailing::write_apev2(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort)
{
    write(p_file,p_info,flag_apev2,p_abort);
}

void tag_processor_trailing::write_apev2_id3v1(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort)
{
    write(p_file,p_info,flag_id3v1|flag_apev2,p_abort);
}




enum {
    g_flag_id3v1 = 1<<0,
    g_flag_id3v2 = 1<<1,
    g_flag_apev2 = 1<<2
};

static void tagtype_list_append(pfc::string_base & p_out,const char * p_name)
{
    if (!p_out.is_empty()) p_out += "|";
    p_out += p_name;
}

static void g_write_tags_ex(tag_write_callback & p_callback,unsigned p_flags,const service_ptr_t<file> & p_file,const file_info * p_info,abort_callback & p_abort) {
    PFC_ASSERT( p_flags == 0 || p_info != 0 );


    if (p_flags & (g_flag_id3v1 | g_flag_apev2)) {
        switch(p_flags & (g_flag_id3v1 | g_flag_apev2)) {
        case g_flag_id3v1 | g_flag_apev2:
            static_api_ptr_t<tag_processor_trailing>()->write_apev2_id3v1(p_file,*p_info,p_abort);
            break;
        case g_flag_id3v1:
            static_api_ptr_t<tag_processor_trailing>()->write_id3v1(p_file,*p_info,p_abort);
            break;
        case g_flag_apev2:
            static_api_ptr_t<tag_processor_trailing>()->write_apev2(p_file,*p_info,p_abort);
            break;
        default:
            throw exception_io_data();
        }
    } else {
        static_api_ptr_t<tag_processor_trailing>()->remove(p_file,p_abort);
    }

    if (p_flags & g_flag_id3v2)
    {
        static_api_ptr_t<tag_processor_id3v2>()->write_ex(p_callback,p_file,*p_info,p_abort);
    }
    else
    {
        t_uint64 dummy;
        tag_processor_id3v2::g_remove_ex(p_callback,p_file,dummy,p_abort);
    }
}

static void g_write_tags(unsigned p_flags,const service_ptr_t<file> & p_file,const file_info * p_info,abort_callback & p_abort) {
    tag_write_callback_dummy cb;
    g_write_tags_ex(cb,p_flags,p_file,p_info,p_abort);
}


void tag_processor::write_multi(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort,bool p_write_id3v1,bool p_write_id3v2,bool p_write_apev2) {
    unsigned flags = 0;
    if (p_write_id3v1) flags |= g_flag_id3v1;
    if (p_write_id3v2) flags |= g_flag_id3v2;
    if (p_write_apev2) flags |= g_flag_apev2;
    g_write_tags(flags,p_file,&p_info,p_abort);
}

void tag_processor::write_multi_ex(tag_write_callback & p_callback,const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort,bool p_write_id3v1,bool p_write_id3v2,bool p_write_apev2) {
    unsigned flags = 0;
    if (p_write_id3v1) flags |= g_flag_id3v1;
    if (p_write_id3v2) flags |= g_flag_id3v2;
    if (p_write_apev2) flags |= g_flag_apev2;
    g_write_tags_ex(p_callback,flags,p_file,&p_info,p_abort);
}

void tag_processor::write_id3v1(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort) {
    g_write_tags(g_flag_id3v1,p_file,&p_info,p_abort);
}

void tag_processor::write_apev2(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort) {
    g_write_tags(g_flag_apev2,p_file,&p_info,p_abort);
}

void tag_processor::write_apev2_id3v1(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort) {
    g_write_tags(g_flag_apev2|g_flag_id3v1,p_file,&p_info,p_abort);
}

void tag_processor::write_id3v2(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort) {
    g_write_tags(g_flag_id3v2,p_file,&p_info,p_abort);
}

void tag_processor::write_id3v2_id3v1(const service_ptr_t<file> & p_file,const file_info & p_info,abort_callback & p_abort) {
    g_write_tags(g_flag_id3v2|g_flag_id3v1,p_file,&p_info,p_abort);
}

void tag_processor::remove_trailing(const service_ptr_t<file> & p_file,abort_callback & p_abort) {
    return static_api_ptr_t<tag_processor_trailing>()->remove(p_file,p_abort);
}

bool tag_processor::remove_id3v2(const service_ptr_t<file> & p_file,abort_callback & p_abort) {
    t_uint64 dummy = 0;
    tag_processor_id3v2::g_remove(p_file,dummy,p_abort);
    return dummy > 0;
}

void tag_processor::remove_id3v2_trailing(const service_ptr_t<file> & p_file,abort_callback & p_abort) {
    remove_id3v2(p_file,p_abort);
    remove_trailing(p_file,p_abort);
}

void tag_processor::read_trailing(const service_ptr_t<file> & p_file,file_info & p_info,abort_callback & p_abort) {
    static_api_ptr_t<tag_processor_trailing>()->read(p_file,p_info,p_abort);
}

void tag_processor::read_trailing_ex(const service_ptr_t<file> & p_file,file_info & p_info,t_uint64 & p_tagoffset,abort_callback & p_abort) {
    static_api_ptr_t<tag_processor_trailing>()->read_ex(p_file,p_info,p_tagoffset,p_abort);
}

void tag_processor::read_id3v2(const service_ptr_t<file> & p_file,file_info & p_info,abort_callback & p_abort) {
    static_api_ptr_t<tag_processor_id3v2>()->read(p_file,p_info,p_abort);
}

void tag_processor::read_id3v2_trailing(const service_ptr_t<file> & p_file,file_info & p_info,abort_callback & p_abort)
{
    file_info_impl id3v2, trailing;
    bool have_id3v2 = true, have_trailing = true;
    try {
        read_id3v2(p_file,id3v2,p_abort);
    } catch(exception_io_data) {
        have_id3v2 = false;
    }
    if (!have_id3v2 || !p_file->is_remote()) try {
        read_trailing(p_file,trailing,p_abort);
    } catch(exception_io_data) {
        have_trailing = false;
    }

    if (!have_id3v2 && !have_trailing) throw exception_tag_not_found();

    if (have_id3v2) {
        p_info._set_tag(id3v2);
        if (have_trailing) p_info._add_tag(trailing);
    } else {
        p_info._set_tag(trailing);
    }
}

void tag_processor::skip_id3v2(const service_ptr_t<file> & p_file,t_uint64 & p_size_skipped,abort_callback & p_abort) {
    tag_processor_id3v2::g_skip(p_file,p_size_skipped,p_abort);
}

bool tag_processor::is_id3v1_sufficient(const file_info & p_info)
{
    return static_api_ptr_t<tag_processor_trailing>()->is_id3v1_sufficient(p_info);
}

void tag_processor::truncate_to_id3v1(file_info & p_info)
{
    static_api_ptr_t<tag_processor_trailing>()->truncate_to_id3v1(p_info);
}