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1 /* | |
2 * Copyright (c) 2017 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_AUDIO_ENCODER_FACTORY_H_ | |
12 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_ENCODER_FACTORY_H_ | |
13 | |
14 #include <memory> | |
15 #include <vector> | |
16 | |
17 #include "webrtc/api/audio_codecs/audio_format.h" | |
18 #include "webrtc/base/refcount.h" | |
19 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h" | |
20 | |
21 namespace webrtc { | |
22 | |
23 // A factory that creates AudioEncoders. | |
24 // NOTE: This class is still under development and may change without notice. | |
25 class AudioEncoderFactory : public rtc::RefCountInterface { | |
26 public: | |
27 // Returns a prioritized list of audio codecs, to use for signaling etc. | |
28 virtual std::vector<AudioCodecSpec> GetSupportedEncoders() = 0; | |
29 | |
30 // Returns information about how this format would be encoded, provided it's | |
31 // supported. More format and format variations may be supported than those | |
32 // returned by GetSupportedEncoders(). | |
33 virtual rtc::Optional<AudioCodecInfo> QueryAudioEncoder( | |
34 const SdpAudioFormat& format) = 0; | |
35 | |
36 // Creates an AudioEncoder for the specified format. The encoder will tags its | |
37 // payloads with the specified payload type. | |
38 // TODO(ossu): Try to avoid audio encoders having to know their payload type. | |
39 virtual std::unique_ptr<AudioEncoder> MakeAudioEncoder( | |
40 int payload_type, | |
41 const SdpAudioFormat& format) = 0; | |
42 }; | |
43 | |
44 } // namespace webrtc | |
45 | |
46 #endif // WEBRTC_MODULES_AUDIO_CODING_CODECS_AUDIO_ENCODER_FACTORY_H_ | |
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