Injectable audio encoders: BuiltinAudioEncoderFactory

webrtc/modules/audio_coding/codecs/g711/audio_encoder_pcm.h

 /*
  *  Copyright (c) 2014 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_G711_AUDIO_ENCODER_PCM_H_
 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_AUDIO_ENCODER_PCM_H_
 
 #include <vector>
 
+#include "webrtc/api/audio_codecs/audio_format.h"
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/modules/audio_coding/codecs/audio_encoder.h"
 
 namespace webrtc {
 
 class AudioEncoderPcm : public AudioEncoder {
  public:
   struct Config {
    public:
     bool IsOk() const;
@@ skipping 47 matching lines @@
 
 class AudioEncoderPcmA final : public AudioEncoderPcm {
  public:
   struct Config : public AudioEncoderPcm::Config {
     Config() : AudioEncoderPcm::Config(8) {}
   };
 
   explicit AudioEncoderPcmA(const Config& config)
       : AudioEncoderPcm(config, kSampleRateHz) {}
   explicit AudioEncoderPcmA(const CodecInst& codec_inst);
+  explicit AudioEncoderPcmA(int payload_type, const SdpAudioFormat& format);

[kwiberg-webrtc, 2017/02/19 21:41:10]

Why explicit?

[ossu, 2017/02/20 12:20:26]

Copied the line above, made changes, didn't think about it.

+
+  static constexpr const char* GetPayloadName() { return "pcma"; }
+  static rtc::Optional<AudioFormatInfo> QueryAudioFormat(
+      const SdpAudioFormat& format);
 
  protected:
   size_t EncodeCall(const int16_t* audio,
                     size_t input_len,
                     uint8_t* encoded) override;
 
   size_t BytesPerSample() const override;
 
   AudioEncoder::CodecType GetCodecType() const override;
 
  private:
   static const int kSampleRateHz = 8000;
   RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderPcmA);
 };
 
 class AudioEncoderPcmU final : public AudioEncoderPcm {
  public:
   struct Config : public AudioEncoderPcm::Config {
     Config() : AudioEncoderPcm::Config(0) {}
   };
 
   explicit AudioEncoderPcmU(const Config& config)
       : AudioEncoderPcm(config, kSampleRateHz) {}
   explicit AudioEncoderPcmU(const CodecInst& codec_inst);
+  explicit AudioEncoderPcmU(int payload_type, const SdpAudioFormat& format);
+
+  static constexpr const char* GetPayloadName() { return "pcmu"; }
+  static rtc::Optional<AudioFormatInfo> QueryAudioFormat(
+      const SdpAudioFormat& format);
 
  protected:
   size_t EncodeCall(const int16_t* audio,
                     size_t input_len,
                     uint8_t* encoded) override;
 
   size_t BytesPerSample() const override;
 
   AudioEncoder::CodecType GetCodecType() const override;
 
  private:
   static const int kSampleRateHz = 8000;
   RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderPcmU);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_G711_AUDIO_ENCODER_PCM_H_