1/*
2 * Copyrightm (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <stdint.h>
18
19#ifndef __AUDIO_CODEC_H__
20#define __AUDIO_CODEC_H__
21
22class AudioCodec
23{
24public:
25    const char *name;
26    // Needed by destruction through base class pointers.
27    virtual ~AudioCodec() {}
28    // Returns sampleCount or non-positive value if unsupported.
29    virtual int set(int sampleRate, const char *fmtp) = 0;
30    // Returns the length of payload in bytes.
31    virtual int encode(void *payload, int16_t *samples) = 0;
32    // Returns the number of decoded samples.
33    virtual int decode(int16_t *samples, int count, void *payload, int length) = 0;
34};
35
36AudioCodec *newAudioCodec(const char *codecName);
37
38#endif
39