webrtc/api/audio_codecs/audio_decoder_factory.h
Karl Wiberg 98900740ad Audio codec factories: Pass a codec pair ID to new codecs
Currently ignored by all implementations and callers, but future CLs
will remedy that.

Bug: webrtc:8941
Change-Id: I59a3af78fefcf35af3e5ef37d2adf1165ce5751e
Reviewed-on: https://webrtc-review.googlesource.com/58080
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Commit-Queue: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22248}
2018-03-01 12:23:28 +00:00

53 lines
1.9 KiB
C++

/*
* 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 API_AUDIO_CODECS_AUDIO_DECODER_FACTORY_H_
#define API_AUDIO_CODECS_AUDIO_DECODER_FACTORY_H_
#include <memory>
#include <vector>
#include "api/audio_codecs/audio_codec_pair_id.h"
#include "api/audio_codecs/audio_decoder.h"
#include "api/audio_codecs/audio_format.h"
#include "api/optional.h"
#include "rtc_base/refcount.h"
namespace webrtc {
// A factory that creates AudioDecoders.
// NOTE: This class is still under development and may change without notice.
class AudioDecoderFactory : public rtc::RefCountInterface {
public:
virtual std::vector<AudioCodecSpec> GetSupportedDecoders() = 0;
virtual bool IsSupportedDecoder(const SdpAudioFormat& format) = 0;
// Create a new decoder instance. The `codec_pair_id` argument is used to
// link encoders and decoders that talk to the same remote entity; if a
// MakeAudioEncoder() and a MakeAudioDecoder() call receive non-null IDs that
// compare equal, the factory implementations may assume that the encoder and
// decoder form a pair.
//
// Note: Implementations need to be robust against combinations other than
// one encoder, one decoder getting the same ID; such decoders must still
// work.
virtual std::unique_ptr<AudioDecoder> MakeAudioDecoder(
const SdpAudioFormat& format,
rtc::Optional<AudioCodecPairId> codec_pair_id);
// Deprecated version of the above.
virtual std::unique_ptr<AudioDecoder> MakeAudioDecoder(
const SdpAudioFormat& format);
};
} // namespace webrtc
#endif // API_AUDIO_CODECS_AUDIO_DECODER_FACTORY_H_