1/*
2 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_OPUS_INST_H_
12#define WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_OPUS_INST_H_
13
14#include <stddef.h>
15
16#include "opus.h"
17
18struct WebRtcOpusEncInst {
19  OpusEncoder* encoder;
20  size_t channels;
21  int in_dtx_mode;
22  // When Opus is in DTX mode, we use |zero_counts| to count consecutive zeros
23  // to break long zero segment so as to prevent DTX from going wrong. We use
24  // one counter for each channel. After each encoding, |zero_counts| contain
25  // the remaining zeros from the last frame.
26  // TODO(minyue): remove this when Opus gets an internal fix to DTX.
27  size_t* zero_counts;
28};
29
30struct WebRtcOpusDecInst {
31  OpusDecoder* decoder;
32  int prev_decoded_samples;
33  size_t channels;
34  int in_dtx_mode;
35};
36
37
38#endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_OPUS_OPUS_INST_H_
39