fileinfo.c

xmms-1.2.10.tar.gz学习使用的就下吧

				   filename_entry, TRUE, TRUE, 0);
		
		hbox = gtk_hbox_new(FALSE, 10);
		gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
		
		left_vbox = gtk_vbox_new(FALSE, 10);
		gtk_box_pack_start(GTK_BOX(hbox), left_vbox, FALSE, FALSE, 0);

		id3_frame = gtk_frame_new(_("ID3 Tag:"));
		gtk_box_pack_start(GTK_BOX(left_vbox), id3_frame,
				   FALSE, FALSE, 0);

		table = gtk_table_new(5, 5, FALSE);
		gtk_container_set_border_width(GTK_CONTAINER(table), 5);
		gtk_container_add(GTK_CONTAINER(id3_frame), table);

		label = gtk_label_new(_("Title:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1,
				 GTK_FILL, GTK_FILL, 5, 5);

		title_entry = gtk_entry_new_with_max_length(30);
		gtk_table_attach(GTK_TABLE(table), title_entry, 1, 4, 0, 1,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		label = gtk_label_new(_("Artist:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 0, 1, 1, 2,
				 GTK_FILL, GTK_FILL, 5, 5);

		artist_entry = gtk_entry_new_with_max_length(30);
		gtk_table_attach(GTK_TABLE(table), artist_entry, 1, 4, 1, 2,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		label = gtk_label_new(_("Album:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 0, 1, 2, 3,
				 GTK_FILL, GTK_FILL, 5, 5);

		album_entry = gtk_entry_new_with_max_length(30);
		gtk_table_attach(GTK_TABLE(table), album_entry, 1, 4, 2, 3,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		label = gtk_label_new(_("Comment:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 0, 1, 3, 4,
				 GTK_FILL, GTK_FILL, 5, 5);

		comment_entry = gtk_entry_new_with_max_length(30);
		gtk_table_attach(GTK_TABLE(table), comment_entry, 1, 4, 3, 4,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		label = gtk_label_new(_("Year:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 0, 1, 4, 5,
				 GTK_FILL, GTK_FILL, 5, 5);

		year_entry = gtk_entry_new_with_max_length(4);
		gtk_widget_set_usize(year_entry, 40, -1);
		gtk_table_attach(GTK_TABLE(table), year_entry, 1, 2, 4, 5,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		label = gtk_label_new(_("Track number:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 2, 3, 4, 5,
				 GTK_FILL, GTK_FILL, 5, 5);

		tracknum_entry = gtk_entry_new_with_max_length(3);
		gtk_widget_set_usize(tracknum_entry, 40, -1);
		gtk_table_attach(GTK_TABLE(table), tracknum_entry, 3, 4, 4, 5,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		label = gtk_label_new(_("Genre:"));
		gtk_misc_set_alignment(GTK_MISC(label), 1, 0.5);
		gtk_table_attach(GTK_TABLE(table), label, 0, 1, 5, 6,
				 GTK_FILL, GTK_FILL, 5, 5);

		genre_combo = gtk_combo_new();
		gtk_entry_set_editable(GTK_ENTRY(GTK_COMBO(genre_combo)->entry),
				       FALSE);
		if (!genre_list)
		{
			struct genre_item *item;

			for (i = 0; i < GENRE_MAX; i++)
			{
				item = g_malloc(sizeof (*item));
				item->name = gettext(mpg123_id3_genres[i]);
				item->id = i;
				genre_list = g_list_prepend(genre_list, item);
			}
			item = g_malloc(sizeof (*item));
			item->name = "";
			item->id = 0xff;
			genre_list = g_list_prepend(genre_list, item);
			genre_list = g_list_sort(genre_list, genre_comp_func);
		}
		genre_set_popdown(genre_combo, genre_list);
		gtk_signal_connect(GTK_OBJECT(GTK_COMBO(genre_combo)->list),
				   "select-child", genre_selected, NULL);

		gtk_table_attach(GTK_TABLE(table), genre_combo, 1, 4, 5, 6,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK,
				 GTK_FILL | GTK_EXPAND | GTK_SHRINK, 0, 5);

		bbox = gtk_hbutton_box_new();
		gtk_button_box_set_layout(GTK_BUTTON_BOX(bbox),
					  GTK_BUTTONBOX_END);
		gtk_button_box_set_spacing(GTK_BUTTON_BOX(bbox), 5);
		gtk_box_pack_start(GTK_BOX(left_vbox), bbox, FALSE, FALSE, 0);

		save = gtk_button_new_with_label(_("Save"));
		gtk_signal_connect(GTK_OBJECT(save), "clicked", save_cb, NULL);
		GTK_WIDGET_SET_FLAGS(save, GTK_CAN_DEFAULT);
		gtk_box_pack_start(GTK_BOX(bbox), save, TRUE, TRUE, 0);
		gtk_widget_grab_default(save);

		remove_id3 = gtk_button_new_with_label(_("Remove ID3"));
		gtk_signal_connect(GTK_OBJECT(remove_id3), "clicked",
				   remove_id3_cb, NULL);
		GTK_WIDGET_SET_FLAGS(remove_id3, GTK_CAN_DEFAULT);
		gtk_box_pack_start(GTK_BOX(bbox), remove_id3, TRUE, TRUE, 0);

		cancel = gtk_button_new_with_label(_("Cancel"));
		gtk_signal_connect_object(GTK_OBJECT(cancel), "clicked",
					  gtk_widget_destroy, GTK_OBJECT(window));
		GTK_WIDGET_SET_FLAGS(cancel, GTK_CAN_DEFAULT);
		gtk_box_pack_start(GTK_BOX(bbox), cancel, TRUE, TRUE, 0);

		mpeg_frame = gtk_frame_new(_("MPEG Info:"));
		gtk_box_pack_start(GTK_BOX(hbox), mpeg_frame, FALSE, FALSE, 0);

		mpeg_box = gtk_vbox_new(FALSE, 5);
		gtk_container_add(GTK_CONTAINER(mpeg_frame), mpeg_box);
		gtk_container_set_border_width(GTK_CONTAINER(mpeg_box), 10);
		gtk_box_set_spacing(GTK_BOX(mpeg_box), 0);

		mpeg_level = gtk_label_new("");
		gtk_widget_set_usize(mpeg_level, 120, -2);
		gtk_misc_set_alignment(GTK_MISC(mpeg_level), 0, 0);
		gtk_box_pack_start(GTK_BOX(mpeg_box), mpeg_level, FALSE, FALSE, 0);

		mpeg_bitrate = gtk_label_new("");
		gtk_misc_set_alignment(GTK_MISC(mpeg_bitrate), 0, 0);
		gtk_label_set_justify(GTK_LABEL(mpeg_bitrate),
				      GTK_JUSTIFY_LEFT);
		gtk_box_pack_start(GTK_BOX(mpeg_box),
				   mpeg_bitrate, FALSE, FALSE, 0);

		mpeg_samplerate = gtk_label_new("");
		gtk_misc_set_alignment(GTK_MISC(mpeg_samplerate), 0, 0);
		gtk_box_pack_start(GTK_BOX(mpeg_box), mpeg_samplerate,
				   FALSE, FALSE, 0);

		mpeg_flags = gtk_label_new("");
		gtk_misc_set_alignment(GTK_MISC(mpeg_flags), 0, 0);
		gtk_label_set_justify(GTK_LABEL(mpeg_flags), GTK_JUSTIFY_LEFT);
		gtk_box_pack_start(GTK_BOX(mpeg_box), mpeg_flags,
				   FALSE, FALSE, 0);

		mpeg_fileinfo = gtk_label_new("");
		gtk_misc_set_alignment(GTK_MISC(mpeg_fileinfo), 0, 0);
		gtk_label_set_justify(GTK_LABEL(mpeg_fileinfo),
				      GTK_JUSTIFY_LEFT);
		gtk_box_pack_start(GTK_BOX(mpeg_box), mpeg_fileinfo,
				   FALSE, FALSE, 0);

		gtk_widget_show_all(window);
	}

	if (current_filename)
		g_free(current_filename);
	current_filename = g_strdup(filename);

	title = g_strdup_printf(_("File Info - %s"), g_basename(filename));
	gtk_window_set_title(GTK_WINDOW(window), title);
	g_free(title);

	gtk_entry_set_text(GTK_ENTRY(filename_entry), filename);
	gtk_editable_set_position(GTK_EDITABLE(filename_entry), -1);

	title = g_strdup(g_basename(filename));
	if ((tmp = strrchr(title, '.')) != NULL)
		*tmp = '\0';
	gtk_entry_set_text(GTK_ENTRY(title_entry), title);
	g_free(title);

	gtk_entry_set_text(GTK_ENTRY(artist_entry), "");
	gtk_entry_set_text(GTK_ENTRY(album_entry), "");
	gtk_entry_set_text(GTK_ENTRY(year_entry), "");
	gtk_entry_set_text(GTK_ENTRY(tracknum_entry), "");
	gtk_entry_set_text(GTK_ENTRY(comment_entry), "");
	gtk_list_select_item(GTK_LIST(GTK_COMBO(genre_combo)->list),
			     genre_find_index(genre_list, 0xff));
	gtk_label_set_text(GTK_LABEL(mpeg_level), "MPEG ?, layer ?");
	gtk_label_set_text(GTK_LABEL(mpeg_bitrate), "");
	gtk_label_set_text(GTK_LABEL(mpeg_samplerate), "");
	gtk_label_set_text(GTK_LABEL(mpeg_flags), "");
	gtk_label_set_text(GTK_LABEL(mpeg_fileinfo), "");

	if (!strncasecmp(filename, "http://", 7))
	{
		file_info_http(filename);
		return;
	}

	gtk_widget_set_sensitive(id3_frame, TRUE);

	if ((fh = fopen(current_filename, "rb")) != NULL)
	{
		guint32 head;
		unsigned char tmp[4];
		struct frame frm;
		gboolean id3_found = FALSE;

		fseek(fh, -sizeof (tag), SEEK_END);
		if (fread(&tag, 1, sizeof (tag), fh) == sizeof (tag))
		{
			if (!strncmp(tag.tag, "TAG", 3))
			{
				id3_found = TRUE;
				set_entry_tag(GTK_ENTRY(title_entry),
					      tag.title, 30);
				set_entry_tag(GTK_ENTRY(artist_entry),
					      tag.artist, 30);
				set_entry_tag(GTK_ENTRY(album_entry),
					      tag.album, 30);
				set_entry_tag(GTK_ENTRY(year_entry),
					      tag.year, 4);
				/* Check for v1.1 tags */
				if (tag.u.v1_1.__zero == 0)
				{
					char *temp = g_strdup_printf("%d", tag.u.v1_1.track_number);
					set_entry_tag(GTK_ENTRY(comment_entry),
						      tag.u.v1_1.comment, 28);
					gtk_entry_set_text(GTK_ENTRY(tracknum_entry), temp);
					g_free(temp);
				}
				else
				{
					set_entry_tag(GTK_ENTRY(comment_entry),
						      tag.u.v1_0.comment, 30);
					gtk_entry_set_text(GTK_ENTRY(tracknum_entry), "");
				}
				
				gtk_list_select_item(GTK_LIST(GTK_COMBO(genre_combo)->list), genre_find_index(genre_list, tag.genre));
			}
		}
		rewind(fh);
		if (fread(tmp, 1, 4, fh) != 4)
		{
			fclose(fh);
			return;
		}
		head = ((guint32) tmp[0] << 24) | ((guint32) tmp[1] << 16) | ((guint32) tmp[2] << 8) | (guint32) tmp[3];
		while (!mpg123_head_check(head))
		{
			head <<= 8;
			if (fread(tmp, 1, 1, fh) != 1)
			{
				fclose(fh);
				return;
			}
			head |= tmp[0];
		}
		if (mpg123_decode_header(&frm, head))
		{
			guint8 *buf;
			double tpf;
			int pos;
			xing_header_t xing_header;
			guint32 num_frames;

			buf = g_malloc(frm.framesize + 4);
			fseek(fh, -4, SEEK_CUR);
			fread(buf, 1, frm.framesize + 4, fh);
			tpf = mpg123_compute_tpf(&frm);
			set_mpeg_level_label(frm.mpeg25, frm.lsf, frm.lay);
			pos = ftell(fh);
			fseek(fh, 0, SEEK_END);
			if (mpg123_get_xing_header(&xing_header, buf))
			{
				num_frames = xing_header.frames;
				label_set_text(mpeg_bitrate, _("Bitrate: Variable,\navg. bitrate: %d kb/s"), (int)((xing_header.bytes * 8) / (tpf * xing_header.frames * 1000)));
			}
			else
			{
				num_frames = ((ftell(fh) - pos - (id3_found ? 128 : 0)) / mpg123_compute_bpf(&frm)) + 1;
				label_set_text(mpeg_bitrate, _("Bitrate: %d kb/s"), tabsel_123[frm.lsf][frm.lay - 1][frm.bitrate_index]);
			}
			label_set_text(mpeg_samplerate, _("Samplerate: %d Hz"),
				       mpg123_freqs[frm.sampling_frequency]);
			label_set_text(mpeg_flags, _("%s\nError protection: %s\nCopyright: %s\nOriginal: %s\nEmphasis: %s"), channel_mode_name(frm.mode), bool_label[frm.error_protection], bool_label[frm.copyright], bool_label[frm.original], emphasis[frm.emphasis]);
			label_set_text(mpeg_fileinfo, _("%d frames\nFilesize: %lu B"), num_frames, ftell(fh));
			g_free(buf);
		}
		fclose(fh);
	}
}