fileinfo.c

这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔者对其中的LIBMAD库做了针对ARM MPU的优化. 并增加了词幕功能.

/*  XMMS - Cross-platform multimedia player
 *  Copyright (C) 1998-2000  Peter Alm, Mikael Alm, Olle Hallnas, Thomas Nilsson and 4Front Technologies
 *  Copyright (C) 1999,2000  H鍁ard Kv錶en
 *  Copyright (C) 2002,2003,2004,2005  Daisuke Shimamura
 *
 *  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <stdlib.h>
#include <string.h> /* for strlen() */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdarg.h>
#include <gtk/gtk.h>

#include "FLAC/metadata.h"
#include "charset.h"
#include "configure.h"
#include "plugin_common/tags.h"
#include "plugin_common/locale_hack.h"

static GtkWidget *window = NULL;
static GList *genre_list = NULL;
static GtkWidget *filename_entry, *tag_frame;
static GtkWidget *title_entry, *artist_entry, *album_entry, *date_entry, *tracknum_entry, *comment_entry;
static GtkWidget *genre_combo;
static GtkWidget *flac_samplerate, *flac_channels, *flac_bits_per_sample, *flac_blocksize, *flac_filesize, *flac_samples, *flac_bitrate;

static gchar *current_filename = NULL;
static FLAC__StreamMetadata *tags_ = NULL;

static const gchar *vorbis_genres[] =
{
	N_("Blues"), N_("Classic Rock"), N_("Country"), N_("Dance"),
	N_("Disco"), N_("Funk"), N_("Grunge"), N_("Hip-Hop"),
	N_("Jazz"), N_("Metal"), N_("New Age"), N_("Oldies"),
	N_("Other"), N_("Pop"), N_("R&B"), N_("Rap"), N_("Reggae"),
	N_("Rock"), N_("Techno"), N_("Industrial"), N_("Alternative"),
	N_("Ska"), N_("Death Metal"), N_("Pranks"), N_("Soundtrack"),
	N_("Euro-Techno"), N_("Ambient"), N_("Trip-Hop"), N_("Vocal"),
	N_("Jazz+Funk"), N_("Fusion"), N_("Trance"), N_("Classical"),
	N_("Instrumental"), N_("Acid"), N_("House"), N_("Game"),
	N_("Sound Clip"), N_("Gospel"), N_("Noise"), N_("Alt"),
	N_("Bass"), N_("Soul"), N_("Punk"), N_("Space"),
	N_("Meditative"), N_("Instrumental Pop"),
	N_("Instrumental Rock"), N_("Ethnic"), N_("Gothic"),
	N_("Darkwave"), N_("Techno-Industrial"), N_("Electronic"),
	N_("Pop-Folk"), N_("Eurodance"), N_("Dream"),
	N_("Southern Rock"), N_("Comedy"), N_("Cult"),
	N_("Gangsta Rap"), N_("Top 40"), N_("Christian Rap"),
	N_("Pop/Funk"), N_("Jungle"), N_("Native American"),
	N_("Cabaret"), N_("New Wave"), N_("Psychedelic"), N_("Rave"),
	N_("Showtunes"), N_("Trailer"), N_("Lo-Fi"), N_("Tribal"),
	N_("Acid Punk"), N_("Acid Jazz"), N_("Polka"), N_("Retro"),
	N_("Musical"), N_("Rock & Roll"), N_("Hard Rock"), N_("Folk"),
	N_("Folk/Rock"), N_("National Folk"), N_("Swing"),
	N_("Fast-Fusion"), N_("Bebob"), N_("Latin"), N_("Revival"),
	N_("Celtic"), N_("Bluegrass"), N_("Avantgarde"),
	N_("Gothic Rock"), N_("Progressive Rock"),
	N_("Psychedelic Rock"), N_("Symphonic Rock"), N_("Slow Rock"),
	N_("Big Band"), N_("Chorus"), N_("Easy Listening"),
	N_("Acoustic"), N_("Humour"), N_("Speech"), N_("Chanson"),
	N_("Opera"), N_("Chamber Music"), N_("Sonata"), N_("Symphony"),
	N_("Booty Bass"), N_("Primus"), N_("Porn Groove"),
	N_("Satire"), N_("Slow Jam"), N_("Club"), N_("Tango"),
	N_("Samba"), N_("Folklore"), N_("Ballad"), N_("Power Ballad"),
	N_("Rhythmic Soul"), N_("Freestyle"), N_("Duet"),
	N_("Punk Rock"), N_("Drum Solo"), N_("A Cappella"),
	N_("Euro-House"), N_("Dance Hall"), N_("Goa"),
	N_("Drum & Bass"), N_("Club-House"), N_("Hardcore"),
	N_("Terror"), N_("Indie"), N_("BritPop"), N_("Negerpunk"),
	N_("Polsk Punk"), N_("Beat"), N_("Christian Gangsta Rap"),
	N_("Heavy Metal"), N_("Black Metal"), N_("Crossover"),
	N_("Contemporary Christian"), N_("Christian Rock"),
	N_("Merengue"), N_("Salsa"), N_("Thrash Metal"),
	N_("Anime"), N_("JPop"), N_("Synthpop")
};

static void label_set_text(GtkWidget * label, char *str, ...)
{
	va_list args;
	gchar *tempstr;

	va_start(args, str);
	tempstr = g_strdup_vprintf(str, args);
	va_end(args);

	gtk_label_set_text(GTK_LABEL(label), tempstr);
	g_free(tempstr);
}

static void set_entry_tag(GtkEntry * entry, const char * utf8)
{
	if(utf8) {
		if(flac_cfg.title.convert_char_set) {
			char *text = convert_from_utf8_to_user(utf8);
			gtk_entry_set_text(entry, text);
			free(text);
		}
		else
			gtk_entry_set_text(entry, utf8);
	}
	else
		gtk_entry_set_text(entry, "");
}

static void get_entry_tag(GtkEntry * entry, const char *name)
{
	gchar *text;
	char *utf8;

	text = gtk_entry_get_text(entry);
	if (!text || strlen(text) == 0)
		return;
	if(flac_cfg.title.convert_char_set)
		utf8 = convert_from_user_to_utf8(text);
	else
		utf8 = text;

	FLAC_plugin__tags_add_tag_utf8(tags_, name, utf8, /*separator=*/0);

	if(flac_cfg.title.convert_char_set)
		free(utf8);
}

static void show_tag()
{
	set_entry_tag(GTK_ENTRY(title_entry)                  , FLAC_plugin__tags_get_tag_utf8(tags_, "TITLE"));
	set_entry_tag(GTK_ENTRY(artist_entry)                 , FLAC_plugin__tags_get_tag_utf8(tags_, "ARTIST"));
	set_entry_tag(GTK_ENTRY(album_entry)                  , FLAC_plugin__tags_get_tag_utf8(tags_, "ALBUM"));
	set_entry_tag(GTK_ENTRY(date_entry)                   , FLAC_plugin__tags_get_tag_utf8(tags_, "DATE"));
	set_entry_tag(GTK_ENTRY(tracknum_entry)               , FLAC_plugin__tags_get_tag_utf8(tags_, "TRACKNUMBER"));
	set_entry_tag(GTK_ENTRY(comment_entry)                , FLAC_plugin__tags_get_tag_utf8(tags_, "DESCRIPTION"));
	set_entry_tag(GTK_ENTRY(GTK_COMBO(genre_combo)->entry), FLAC_plugin__tags_get_tag_utf8(tags_, "GENRE"));
}

static void save_tag(GtkWidget * w, gpointer data)
{
	(void)w;
	(void)data;

	FLAC_plugin__tags_delete_tag(tags_, "TITLE");
	FLAC_plugin__tags_delete_tag(tags_, "ARTIST");
	FLAC_plugin__tags_delete_tag(tags_, "ALBUM");
	FLAC_plugin__tags_delete_tag(tags_, "DATE");
	FLAC_plugin__tags_delete_tag(tags_, "TRACKNUMBER");
	FLAC_plugin__tags_delete_tag(tags_, "DESCRIPTION");
	FLAC_plugin__tags_delete_tag(tags_, "GENRE");

	get_entry_tag(GTK_ENTRY(title_entry)                  , "TITLE");
	get_entry_tag(GTK_ENTRY(artist_entry)                 , "ARTIST");
	get_entry_tag(GTK_ENTRY(album_entry)                  , "ALBUM");
	get_entry_tag(GTK_ENTRY(date_entry)                   , "DATE");
	get_entry_tag(GTK_ENTRY(tracknum_entry)               , "TRACKNUMBER");
	get_entry_tag(GTK_ENTRY(comment_entry)                , "DESCRIPTION");
	get_entry_tag(GTK_ENTRY(GTK_COMBO(genre_combo)->entry), "GENRE");

	FLAC_plugin__tags_set(current_filename, tags_);
	gtk_widget_destroy(window);
}

static void remove_tag(GtkWidget * w, gpointer data)
{
	(void)w;
	(void)data;
	
	FLAC_plugin__tags_delete_tag(tags_, "TITLE");
	FLAC_plugin__tags_delete_tag(tags_, "ARTIST");
	FLAC_plugin__tags_delete_tag(tags_, "ALBUM");
	FLAC_plugin__tags_delete_tag(tags_, "DATE");
	FLAC_plugin__tags_delete_tag(tags_, "TRACKNUMBER");
	FLAC_plugin__tags_delete_tag(tags_, "DESCRIPTION");
	FLAC_plugin__tags_delete_tag(tags_, "GENRE");

	FLAC_plugin__tags_set(current_filename, tags_);
	gtk_widget_destroy(window);
}

static void show_file_info()
{
	FLAC__StreamMetadata streaminfo;
	struct stat _stat;

	gtk_label_set_text(GTK_LABEL(flac_samplerate), "");
	gtk_label_set_text(GTK_LABEL(flac_channels), "");
	gtk_label_set_text(GTK_LABEL(flac_bits_per_sample), "");
	gtk_label_set_text(GTK_LABEL(flac_blocksize), "");
	gtk_label_set_text(GTK_LABEL(flac_filesize), "");
	gtk_label_set_text(GTK_LABEL(flac_samples), "");
	gtk_label_set_text(GTK_LABEL(flac_bitrate), "");

	if(!FLAC__metadata_get_streaminfo(current_filename, &streaminfo)) {
		return;
	}

	label_set_text(flac_samplerate, _("Samplerate: %d Hz"), streaminfo.data.stream_info.sample_rate);
	label_set_text(flac_channels, _("Channels: %d"), streaminfo.data.stream_info.channels);
	label_set_text(flac_bits_per_sample, _("Bits/Sample: %d"), streaminfo.data.stream_info.bits_per_sample);
	if(streaminfo.data.stream_info.min_blocksize == streaminfo.data.stream_info.max_blocksize)
		label_set_text(flac_blocksize, _("Blocksize: %d"), streaminfo.data.stream_info.min_blocksize);