79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* Copyright (C) 2003-2011 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "replay_gain_ape.h"
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#include "replay_gain_info.h"
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#include "ape.h"
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#include <glib.h>
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#include <string.h>
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#include <stdlib.h>
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struct rg_ape_ctx {
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struct replay_gain_info *info;
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bool found;
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};
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static bool
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replay_gain_ape_callback(unsigned long flags, const char *key,
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const char *_value, size_t value_length, void *_ctx)
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{
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struct rg_ape_ctx *ctx = _ctx;
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/* we only care about utf-8 text tags */
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if ((flags & (0x3 << 1)) != 0)
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return true;
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char value[16];
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if (value_length >= sizeof(value))
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return true;
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memcpy(value, _value, value_length);
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value[value_length] = 0;
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if (g_ascii_strcasecmp(key, "replaygain_track_gain") == 0) {
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ctx->info->tuples[REPLAY_GAIN_TRACK].gain = atof(value);
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ctx->found = true;
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} else if (g_ascii_strcasecmp(key, "replaygain_album_gain") == 0) {
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ctx->info->tuples[REPLAY_GAIN_ALBUM].gain = atof(value);
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ctx->found = true;
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} else if (g_ascii_strcasecmp(key, "replaygain_track_peak") == 0) {
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ctx->info->tuples[REPLAY_GAIN_TRACK].peak = atof(value);
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ctx->found = true;
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} else if (g_ascii_strcasecmp(key, "replaygain_album_peak") == 0) {
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ctx->info->tuples[REPLAY_GAIN_ALBUM].peak = atof(value);
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ctx->found = true;
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}
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return true;
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}
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bool
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replay_gain_ape_read(const char *path_fs, struct replay_gain_info *info)
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{
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struct rg_ape_ctx ctx = {
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.info = info,
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.found = false,
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};
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return tag_ape_scan(path_fs, replay_gain_ape_callback, &ctx) &&
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ctx.found;
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}
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