mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 05:40:42 +01:00
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
/*
|
|
* Copyright (c) 2017 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_L16_AUDIO_DECODER_L16_H_
|
|
#define API_AUDIO_CODECS_L16_AUDIO_DECODER_L16_H_
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "absl/types/optional.h"
|
|
#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/field_trials_view.h"
|
|
#include "rtc_base/system/rtc_export.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// L16 decoder API for use as a template parameter to
|
|
// CreateAudioDecoderFactory<...>().
|
|
struct RTC_EXPORT AudioDecoderL16 {
|
|
struct Config {
|
|
bool IsOk() const {
|
|
return (sample_rate_hz == 8000 || sample_rate_hz == 16000 ||
|
|
sample_rate_hz == 32000 || sample_rate_hz == 48000) &&
|
|
(num_channels >= 1 &&
|
|
num_channels <= AudioDecoder::kMaxNumberOfChannels);
|
|
}
|
|
int sample_rate_hz = 8000;
|
|
int num_channels = 1;
|
|
};
|
|
static absl::optional<Config> SdpToConfig(const SdpAudioFormat& audio_format);
|
|
static void AppendSupportedDecoders(std::vector<AudioCodecSpec>* specs);
|
|
static std::unique_ptr<AudioDecoder> MakeAudioDecoder(
|
|
const Config& config,
|
|
absl::optional<AudioCodecPairId> codec_pair_id = absl::nullopt,
|
|
const FieldTrialsView* field_trials = nullptr);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // API_AUDIO_CODECS_L16_AUDIO_DECODER_L16_H_
|