diff options
Diffstat (limited to 'src/decoder/FlacMetadata.cxx')
| -rw-r--r-- | src/decoder/FlacMetadata.cxx | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/src/decoder/FlacMetadata.cxx b/src/decoder/FlacMetadata.cxx deleted file mode 100644 index b921e8481..000000000 --- a/src/decoder/FlacMetadata.cxx +++ /dev/null @@ -1,223 +0,0 @@ -/* - * Copyright (C) 2003-2014 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "FlacMetadata.hxx" -#include "XiphTags.hxx" -#include "MixRampInfo.hxx" -#include "tag/TagHandler.hxx" -#include "tag/TagTable.hxx" -#include "tag/TagBuilder.hxx" -#include "tag/Tag.hxx" -#include "ReplayGainInfo.hxx" -#include "util/ASCII.hxx" -#include "util/SplitString.hxx" - -#include <string.h> - -static const char * -vorbis_comment_value(const FLAC__StreamMetadata *block, - const char *name) -{ - int offset = - FLAC__metadata_object_vorbiscomment_find_entry_from(block, 0, - name); - if (offset < 0) - return nullptr; - - size_t name_length = strlen(name); - - const FLAC__StreamMetadata_VorbisComment_Entry &vc = - block->data.vorbis_comment.comments[offset]; - const char *comment = (const char *)vc.entry; - - /* 1 is for '=' */ - return comment + name_length + 1; -} - -static bool -flac_find_float_comment(const FLAC__StreamMetadata *block, - const char *cmnt, float *fl) -{ - const char *value = vorbis_comment_value(block, cmnt); - if (value == nullptr) - return false; - - *fl = (float)atof(value); - return true; -} - -bool -flac_parse_replay_gain(ReplayGainInfo &rgi, - const FLAC__StreamMetadata *block) -{ - rgi.Clear(); - - bool found = false; - if (flac_find_float_comment(block, "replaygain_album_gain", - &rgi.tuples[REPLAY_GAIN_ALBUM].gain)) - found = true; - if (flac_find_float_comment(block, "replaygain_album_peak", - &rgi.tuples[REPLAY_GAIN_ALBUM].peak)) - found = true; - if (flac_find_float_comment(block, "replaygain_track_gain", - &rgi.tuples[REPLAY_GAIN_TRACK].gain)) - found = true; - if (flac_find_float_comment(block, "replaygain_track_peak", - &rgi.tuples[REPLAY_GAIN_TRACK].peak)) - found = true; - - return found; -} - -gcc_pure -static std::string -flac_find_string_comment(const FLAC__StreamMetadata *block, const char *cmnt) -{ - const char *value = vorbis_comment_value(block, cmnt); - if (value == nullptr) - return std::string(); - - return std::string(value); -} - -MixRampInfo -flac_parse_mixramp(const FLAC__StreamMetadata *block) -{ - MixRampInfo mix_ramp; - mix_ramp.SetStart(flac_find_string_comment(block, "mixramp_start")); - mix_ramp.SetEnd(flac_find_string_comment(block, "mixramp_end")); - return mix_ramp; -} - -/** - * Checks if the specified name matches the entry's name, and if yes, - * returns the comment value; - */ -static const char * -flac_comment_value(const FLAC__StreamMetadata_VorbisComment_Entry *entry, - const char *name) -{ - size_t name_length = strlen(name); - const char *comment = (const char*)entry->entry; - - if (!StringEqualsCaseASCII(comment, name, name_length)) - return nullptr; - - if (comment[name_length] == '=') { - return comment + name_length + 1; - } - - return nullptr; -} - -/** - * Check if the comment's name equals the passed name, and if so, copy - * the comment value into the tag. - */ -static bool -flac_copy_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry, - const char *name, TagType tag_type, - const struct tag_handler *handler, void *handler_ctx) -{ - const char *value = flac_comment_value(entry, name); - if (value != nullptr) { - tag_handler_invoke_tag(handler, handler_ctx, tag_type, value); - return true; - } - - return false; -} - -static void -flac_scan_comment(const FLAC__StreamMetadata_VorbisComment_Entry *entry, - const struct tag_handler *handler, void *handler_ctx) -{ - if (handler->pair != nullptr) { - const char *comment = (const char *)entry->entry; - const SplitString split(comment, '='); - if (split.IsDefined() && !split.IsEmpty()) - tag_handler_invoke_pair(handler, handler_ctx, - split.GetFirst(), - split.GetSecond()); - } - - for (const struct tag_table *i = xiph_tags; i->name != nullptr; ++i) - if (flac_copy_comment(entry, i->name, i->type, - handler, handler_ctx)) - return; - - for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) - if (flac_copy_comment(entry, - tag_item_names[i], (TagType)i, - handler, handler_ctx)) - return; -} - -static void -flac_scan_comments(const FLAC__StreamMetadata_VorbisComment *comment, - const struct tag_handler *handler, void *handler_ctx) -{ - for (unsigned i = 0; i < comment->num_comments; ++i) - flac_scan_comment(&comment->comments[i], - handler, handler_ctx); -} - -void -flac_scan_metadata(const FLAC__StreamMetadata *block, - const struct tag_handler *handler, void *handler_ctx) -{ - switch (block->type) { - case FLAC__METADATA_TYPE_VORBIS_COMMENT: - flac_scan_comments(&block->data.vorbis_comment, - handler, handler_ctx); - break; - - case FLAC__METADATA_TYPE_STREAMINFO: - if (block->data.stream_info.sample_rate > 0) - tag_handler_invoke_duration(handler, handler_ctx, - flac_duration(&block->data.stream_info)); - break; - - default: - break; - } -} - -Tag -flac_vorbis_comments_to_tag(const FLAC__StreamMetadata_VorbisComment *comment) -{ - TagBuilder tag_builder; - flac_scan_comments(comment, &add_tag_handler, &tag_builder); - return tag_builder.Commit(); -} - -void -FlacMetadataChain::Scan(const struct tag_handler *handler, void *handler_ctx) -{ - FLACMetadataIterator iterator(*this); - - do { - FLAC__StreamMetadata *block = iterator.GetBlock(); - if (block == nullptr) - break; - - flac_scan_metadata(block, handler, handler_ctx); - } while (iterator.Next()); -} |