* Real Audio 1.0 (14.4K)
* Copyright (c) 2003 the ffmpeg project
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define AVCODEC_RA144_H
#include <stdint.h>
-#include "dsputil.h"
+#include "lpc.h"
+#include "audio_frame_queue.h"
#define NBLOCKS 4 ///< number of subblocks within a block
#define BLOCKSIZE 40 ///< subblock size in 16-bit words
#define FRAMESIZE 20 ///< size of encoded frame
#define LPC_ORDER 10 ///< order of LPC filter
-typedef struct {
+typedef struct RA144Context {
AVCodecContext *avctx;
- DSPContext dsp;
+ LPCContext lpc_ctx;
+ AudioFrameQueue afq;
+ int last_frame;
unsigned int old_energy; ///< previous frame energy
uint16_t adapt_cb[146+2];
} RA144Context;
-void ff_add_wav(int16_t *dest, int n, int skip_first, int *m, const int16_t *s1,
- const int8_t *s2, const int8_t *s3);
void ff_copy_and_dup(int16_t *target, const int16_t *source, int offset);
int ff_eval_refl(int *refl, const int16_t *coefs, AVCodecContext *avctx);
void ff_eval_coefs(int *coefs, const int *refl);