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New interface (AudioDecoderFactory), with an implementation

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This is a first draft of what we're hoping to use to create all
AudioDecoder instances. Follow-up CLs will start using this internally
in NetEq instead of calling constructors manually.

BUG=webrtc:5801

Review-Url: https://codereview.webrtc.org/1917163002
Cr-Commit-Position: refs/heads/master@{#12548}
This commit is contained in:
kwiberg
2016-04-28 14:23:32 -07:00
committed by Commit bot
parent c6957c7b73
commit c01c6a423c
9 changed files with 490 additions and 0 deletions
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48
webrtc/modules/audio_coding/codecs/audio_format.h Normal file
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/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_FORMAT_H_
#define WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_FORMAT_H_
#include <map>
#include <ostream>
#include <string>
#include <utility>
namespace webrtc {
// SDP specification for a single audio codec.
// NOTE: This class is still under development and may change without notice.
struct SdpAudioFormat {
// TODO(kwiberg): Get rid of the default constructor when rtc::Optional no
// longer requires it.
SdpAudioFormat();
SdpAudioFormat(const SdpAudioFormat&);
SdpAudioFormat(SdpAudioFormat&&);
SdpAudioFormat(const char* name, int clockrate_hz, int num_channels);
~SdpAudioFormat();
SdpAudioFormat& operator=(const SdpAudioFormat&);
SdpAudioFormat& operator=(SdpAudioFormat&&);
using Parameters = std::map<std::string, std::string>;
std::string name;
int clockrate_hz;
int num_channels;
Parameters parameters;
// Parameters feedback_parameters; ??
};
void swap(SdpAudioFormat& a, SdpAudioFormat& b);
std::ostream& operator<<(std::ostream& os, const SdpAudioFormat& saf);
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_FORMAT_H_