144 lines
4.5 KiB
C++
144 lines
4.5 KiB
C++
#pragma once
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class _meta_table_enum_wrapper {
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public:
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_meta_table_enum_wrapper(file_info & p_info) : m_info(p_info) {}
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template<typename t_values>
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void operator() (const char * p_name,const t_values & p_values) {
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t_size index = ~0;
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for(typename t_values::const_iterator iter = p_values.first(); iter.is_valid(); ++iter) {
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if (index == ~0) index = m_info.__meta_add_unsafe(p_name,*iter);
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else m_info.meta_add_value(index,*iter);
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}
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}
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private:
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file_info & m_info;
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};
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class _meta_table_enum_wrapper_RG {
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public:
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_meta_table_enum_wrapper_RG(file_info & p_info) : m_info(p_info) {}
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template<typename t_values>
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void operator() (const char * p_name,const t_values & p_values) {
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if (p_values.get_count() > 0) {
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if (!m_info.info_set_replaygain(p_name, *p_values.first())) {
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t_size index = ~0;
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for(typename t_values::const_iterator iter = p_values.first(); iter.is_valid(); ++iter) {
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if (index == ~0) index = m_info.__meta_add_unsafe(p_name,*iter);
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else m_info.meta_add_value(index,*iter);
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}
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}
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}
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}
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private:
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file_info & m_info;
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};
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//! Purpose: building a file_info metadata table from loose input without search-for-existing-entry bottleneck
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class meta_table_builder {
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public:
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typedef pfc::chain_list_v2_t<pfc::string8> t_entry;
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typedef pfc::map_t<pfc::string8,t_entry,file_info::field_name_comparator> t_content;
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t_content & content() {return m_data;}
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t_content const & content() const {return m_data;}
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void add(const char * p_name,const char * p_value,t_size p_value_len = ~0) {
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if (file_info::g_is_valid_field_name(p_name)) {
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_add(p_name).insert_last()->set_string(p_value,p_value_len);
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}
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}
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void remove(const char * p_name) {
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m_data.remove(p_name);
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}
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void set(const char * p_name,const char * p_value,t_size p_value_len = ~0) {
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if (file_info::g_is_valid_field_name(p_name)) {
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t_entry & entry = _add(p_name);
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entry.remove_all();
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entry.insert_last()->set_string(p_value,p_value_len);
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}
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}
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t_entry & add(const char * p_name) {
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if (!file_info::g_is_valid_field_name(p_name)) uBugCheck();//we return a reference, nothing smarter to do
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return _add(p_name);
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}
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void deduplicate(const char * name) {
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t_entry * e;
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if (!m_data.query_ptr(name, e)) return;
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pfc::avltree_t<const char*, pfc::comparator_strcmp> found;
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for(t_entry::iterator iter = e->first(); iter.is_valid(); ) {
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t_entry::iterator next = iter; ++next;
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const char * v = *iter;
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if (!found.add_item_check(v)) e->remove(iter);
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iter = next;
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}
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}
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void keep_one(const char * name) {
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t_entry * e;
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if (!m_data.query_ptr(name, e)) return;
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while(e->get_count() > 1) e->remove(e->last());
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}
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void tidy_VorbisComment() {
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deduplicate("album artist");
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deduplicate("publisher");
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keep_one("totaltracks");
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keep_one("totaldiscs");
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}
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void finalize(file_info & p_info) const {
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p_info.meta_remove_all();
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_meta_table_enum_wrapper e(p_info);
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m_data.enumerate(e);
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}
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void finalize_withRG(file_info & p_info) const {
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p_info.meta_remove_all(); p_info.set_replaygain(replaygain_info_invalid);
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_meta_table_enum_wrapper_RG e(p_info);
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m_data.enumerate(e);
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}
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void from_info(const file_info & p_info) {
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m_data.remove_all();
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from_info_overwrite(p_info);
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}
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void from_info_withRG(const file_info & p_info) {
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m_data.remove_all();
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from_info_overwrite(p_info);
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from_RG_overwrite(p_info.get_replaygain());
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}
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void from_RG_overwrite(replaygain_info info) {
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replaygain_info::t_text_buffer buffer;
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if (info.format_album_gain(buffer)) set("replaygain_album_gain", buffer);
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if (info.format_track_gain(buffer)) set("replaygain_track_gain", buffer);
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if (info.format_album_peak(buffer)) set("replaygain_album_peak", buffer);
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if (info.format_track_peak(buffer)) set("replaygain_track_peak", buffer);
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}
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void from_info_overwrite(const file_info & p_info) {
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for(t_size metawalk = 0, metacount = p_info.meta_get_count(); metawalk < metacount; ++metawalk ) {
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const t_size valuecount = p_info.meta_enum_value_count(metawalk);
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if (valuecount > 0) {
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t_entry & entry = add(p_info.meta_enum_name(metawalk));
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entry.remove_all();
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for(t_size valuewalk = 0; valuewalk < valuecount; ++valuewalk) {
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entry.insert_last(p_info.meta_enum_value(metawalk,valuewalk));
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}
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}
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}
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}
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void reset() {m_data.remove_all();}
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void fix_itunes_compilation() {
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static const char cmp[] = "itunescompilation";
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if (m_data.have_item(cmp)) {
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// m_data.remove(cmp);
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if (!m_data.have_item("album artist")) add("album artist", "Various Artists");
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}
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}
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private:
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t_entry & _add(const char * p_name) {
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return m_data.find_or_add(p_name);
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}
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t_content m_data;
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};
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