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Chia-chi Yeh4c5d28c2010-08-06 14:12:05 +08001/*
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 virtual ~AudioCodec() {}
26 // Returns true if initialization succeeds.
27 virtual bool set(int sampleRate, int sampleCount) = 0;
28 // Returns the length of payload in bytes.
29 virtual int encode(void *payload, int16_t *samples) = 0;
30 // Returns the number of decoded samples.
31 virtual int decode(int16_t *samples, void *payload, int length) = 0;
32};
33
34AudioCodec *newAudioCodec(const char *codecName);
35
36#endif