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diff --git a/cinelerra-5.1/cinelerra/fileac3.h b/cinelerra-5.1/cinelerra/fileac3.h
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+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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
+ *
+ */
+
+#ifndef FILEAC3_H
+#define FILEAC3_H
+
+#include <stdio.h>
+#include <stdint.h>
+
+extern "C" {
+#include "libavcodec/avcodec.h"
+#include "libswresample/swresample.h"
+};
+
+#include "filebase.h"
+#include "filempeg.inc"
+
+
+class FileAC3 : public FileBase
+{
+	static int64_t get_channel_layout(int channels);
+public:
+	FileAC3(Asset *asset, File *file);
+	~FileAC3();
+
+	int reset_parameters_derived();
+	static void get_parameters(BC_WindowBase *parent_window,
+			Asset *asset,
+			BC_WindowBase* &format_window,
+			int audio_options,
+			int video_options);
+	static int check_sig();
+	int open_file(int rd, int wr);
+	int close_file();
+	int read_samples(double *buffer, int64_t len);
+	int write_samples(double **buffer, int64_t len);
+	int get_index(char *index_path);
+
+private:
+	AVCodec *codec;
+	AVCodecContext *codec_context;
+	SwrContext *resample_context;
+
+	FileMPEG *mpg_file;
+	FILE *fd;
+	int16_t *temp_raw;
+	int temp_raw_allocated;
+	int temp_raw_size;
+	unsigned char *temp_compressed;
+	int compressed_allocated;
+};
+
+
+
+class AC3ConfigAudio : public BC_Window
+{
+public:
+	AC3ConfigAudio(BC_WindowBase *parent_window,
+		Asset *asset);
+
+	void create_objects();
+	int close_event();
+
+	Asset *asset;
+	BC_WindowBase *parent_window;
+	char string[BCTEXTLEN];
+};
+
+
+class AC3ConfigAudioBitrate : public BC_PopupMenu
+{
+public:
+	AC3ConfigAudioBitrate(AC3ConfigAudio *gui, int x, int y);
+
+	void create_objects();
+	int handle_event();
+	static char* bitrate_to_string(char *string, int bitrate);
+
+	AC3ConfigAudio *gui;
+};
+
+
+
+
+
+#endif