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-rw-r--r--src/decoder/flac_metadata.c323
1 files changed, 0 insertions, 323 deletions
diff --git a/src/decoder/flac_metadata.c b/src/decoder/flac_metadata.c
deleted file mode 100644
index bd1eaf32..00000000
--- a/src/decoder/flac_metadata.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * Copyright (C) 2003-2011 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 "flac_metadata.h"
-#include "replay_gain_info.h"
-#include "tag.h"
-#include "tag_handler.h"
-#include "tag_table.h"
-
-#include <glib.h>
-
-#include <assert.h>
-#include <stdbool.h>
-#include <stdlib.h>
-
-static bool
-flac_find_float_comment(const FLAC__StreamMetadata *block,
- const char *cmnt, float *fl)
-{
- int offset;
- size_t pos;
- int len;
- unsigned char tmp, *p;
-
- offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, 0,
- cmnt);
- if (offset < 0)
- return false;
-
- pos = strlen(cmnt) + 1; /* 1 is for '=' */
- len = block->data.vorbis_comment.comments[offset].length - pos;
- if (len <= 0)
- return false;
-
- p = &block->data.vorbis_comment.comments[offset].entry[pos];
- tmp = p[len];
- p[len] = '\0';
- *fl = (float)atof((char *)p);
- p[len] = tmp;
-
- return true;
-}
-
-bool
-flac_parse_replay_gain(struct replay_gain_info *rgi,
- const FLAC__StreamMetadata *block)
-{
- bool found = false;
-
- replay_gain_info_init(rgi);
-
- 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;
-}
-
-static bool
-flac_find_string_comment(const FLAC__StreamMetadata *block,
- const char *cmnt, char **str)
-{
- int offset;
- size_t pos;
- int len;
- const unsigned char *p;
-
- *str = NULL;
- offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block, 0,
- cmnt);
- if (offset < 0)
- return false;
-
- pos = strlen(cmnt) + 1; /* 1 is for '=' */
- len = block->data.vorbis_comment.comments[offset].length - pos;
- if (len <= 0)
- return false;
-
- p = &block->data.vorbis_comment.comments[offset].entry[pos];
- *str = g_strndup((const char *)p, len);
-
- return true;
-}
-
-bool
-flac_parse_mixramp(char **mixramp_start, char **mixramp_end,
- const FLAC__StreamMetadata *block)
-{
- bool found = false;
-
- if (flac_find_string_comment(block, "mixramp_start", mixramp_start))
- found = true;
- if (flac_find_string_comment(block, "mixramp_end", mixramp_end))
- found = true;
-
- return found;
-}
-
-/**
- * Checks if the specified name matches the entry's name, and if yes,
- * returns the comment value (not null-temrinated).
- */
-static const char *
-flac_comment_value(const FLAC__StreamMetadata_VorbisComment_Entry *entry,
- const char *name, const char *char_tnum, size_t *length_r)
-{
- size_t name_length = strlen(name);
- size_t char_tnum_length = 0;
- const char *comment = (const char*)entry->entry;
-
- if (entry->length <= name_length ||
- g_ascii_strncasecmp(comment, name, name_length) != 0)
- return NULL;
-
- if (char_tnum != NULL) {
- char_tnum_length = strlen(char_tnum);
- if (entry->length > name_length + char_tnum_length + 2 &&
- comment[name_length] == '[' &&
- g_ascii_strncasecmp(comment + name_length + 1,
- char_tnum, char_tnum_length) == 0 &&
- comment[name_length + char_tnum_length + 1] == ']')
- name_length = name_length + char_tnum_length + 2;
- else if (entry->length > name_length + char_tnum_length &&
- g_ascii_strncasecmp(comment + name_length,
- char_tnum, char_tnum_length) == 0)
- name_length = name_length + char_tnum_length;
- }
-
- if (comment[name_length] == '=') {
- *length_r = entry->length - name_length - 1;
- return comment + name_length + 1;
- }
-
- return NULL;
-}
-
-/**
- * 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, enum tag_type tag_type,
- const char *char_tnum,
- const struct tag_handler *handler, void *handler_ctx)
-{
- const char *value;
- size_t value_length;
-
- value = flac_comment_value(entry, name, char_tnum, &value_length);
- if (value != NULL) {
- char *p = g_strndup(value, value_length);
- tag_handler_invoke_tag(handler, handler_ctx, tag_type, p);
- g_free(p);
- return true;
- }
-
- return false;
-}
-
-static const struct tag_table flac_tags[] = {
- { "tracknumber", TAG_TRACK },
- { "discnumber", TAG_DISC },
- { "album artist", TAG_ALBUM_ARTIST },
- { NULL, TAG_NUM_OF_ITEM_TYPES }
-};
-
-static void
-flac_scan_comment(const char *char_tnum,
- const FLAC__StreamMetadata_VorbisComment_Entry *entry,
- const struct tag_handler *handler, void *handler_ctx)
-{
- if (handler->pair != NULL) {
- char *name = g_strdup((const char*)entry->entry);
- char *value = strchr(name, '=');
-
- if (value != NULL && value > name) {
- *value++ = 0;
- tag_handler_invoke_pair(handler, handler_ctx,
- name, value);
- }
-
- g_free(name);
- }
-
- for (const struct tag_table *i = flac_tags; i->name != NULL; ++i)
- if (flac_copy_comment(entry, i->name, i->type, char_tnum,
- handler, handler_ctx))
- return;
-
- for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i)
- if (flac_copy_comment(entry,
- tag_item_names[i], i, char_tnum,
- handler, handler_ctx))
- return;
-}
-
-static void
-flac_scan_comments(const char *char_tnum,
- 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(char_tnum, &comment->comments[i],
- handler, handler_ctx);
-}
-
-void
-flac_scan_metadata(const char *track,
- const FLAC__StreamMetadata *block,
- const struct tag_handler *handler, void *handler_ctx)
-{
- switch (block->type) {
- case FLAC__METADATA_TYPE_VORBIS_COMMENT:
- flac_scan_comments(track, &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;
- }
-}
-
-void
-flac_vorbis_comments_to_tag(struct tag *tag, const char *char_tnum,
- const FLAC__StreamMetadata_VorbisComment *comment)
-{
- flac_scan_comments(char_tnum, comment,
- &add_tag_handler, tag);
-}
-
-bool
-flac_scan_file2(const char *file, const char *char_tnum,
- const struct tag_handler *handler, void *handler_ctx)
-{
- FLAC__Metadata_SimpleIterator *it;
- FLAC__StreamMetadata *block = NULL;
-
- it = FLAC__metadata_simple_iterator_new();
- if (!FLAC__metadata_simple_iterator_init(it, file, 1, 0)) {
- const char *err;
- FLAC_API FLAC__Metadata_SimpleIteratorStatus s;
-
- s = FLAC__metadata_simple_iterator_status(it);
-
- switch (s) { /* slightly more human-friendly messages: */
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT:
- err = "illegal input";
- break;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE:
- err = "error opening file";
- break;
- case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE:
- err = "not a FLAC file";
- break;
- default:
- err = FLAC__Metadata_SimpleIteratorStatusString[s];
- }
- g_debug("Reading '%s' metadata gave the following error: %s\n",
- file, err);
- FLAC__metadata_simple_iterator_delete(it);
- return false;
- }
-
- do {
- block = FLAC__metadata_simple_iterator_get_block(it);
- if (!block)
- break;
-
- flac_scan_metadata(char_tnum, block, handler, handler_ctx);
- FLAC__metadata_object_delete(block);
- } while (FLAC__metadata_simple_iterator_next(it));
-
- FLAC__metadata_simple_iterator_delete(it);
-
- return true;
-}
-
-struct tag *
-flac_tag_load(const char *file, const char *char_tnum)
-{
- struct tag *tag = tag_new();
-
- if (!flac_scan_file2(file, char_tnum, &add_tag_handler, tag) ||
- tag_is_empty(tag)) {
- tag_free(tag);
- tag = NULL;
- }
-
- return tag;
-}
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