audio_decoder_opus.h 1.4 KB

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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. #ifndef API_AUDIO_CODECS_OPUS_AUDIO_DECODER_OPUS_H_
  11. #define API_AUDIO_CODECS_OPUS_AUDIO_DECODER_OPUS_H_
  12. #include <memory>
  13. #include <vector>
  14. #include "absl/types/optional.h"
  15. #include "api/audio_codecs/audio_codec_pair_id.h"
  16. #include "api/audio_codecs/audio_decoder.h"
  17. #include "api/audio_codecs/audio_format.h"
  18. #include "rtc_base/system/rtc_export.h"
  19. namespace webrtc {
  20. // Opus decoder API for use as a template parameter to
  21. // CreateAudioDecoderFactory<...>().
  22. struct RTC_EXPORT AudioDecoderOpus {
  23. struct Config {
  24. bool IsOk() const; // Checks if the values are currently OK.
  25. int sample_rate_hz = 48000;
  26. int num_channels = 1;
  27. };
  28. static absl::optional<Config> SdpToConfig(const SdpAudioFormat& audio_format);
  29. static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs);
  30. static std::unique_ptr<AudioDecoder> MakeAudioDecoder(
  31. Config config,
  32. absl::optional<AudioCodecPairId> codec_pair_id = absl::nullopt);
  33. };
  34. } // namespace webrtc
  35. #endif // API_AUDIO_CODECS_OPUS_AUDIO_DECODER_OPUS_H_