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/*
* Copyright (c) 2018 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 TEST_AUDIO_DECODER_PROXY_FACTORY_H_
#define TEST_AUDIO_DECODER_PROXY_FACTORY_H_
#include <memory>
#include <utility>
#include <vector>
#include "api/audio_codecs/audio_decoder.h"
#include "api/audio_codecs/audio_decoder_factory.h"
namespace webrtc {
namespace test {
// A decoder factory with a single underlying AudioDecoder object, intended for
// test purposes. Each call to MakeAudioDecoder returns a proxy for the same
// decoder, typically a mock or fake decoder.
class AudioDecoderProxyFactory : public AudioDecoderFactory {
public:
explicit AudioDecoderProxyFactory(AudioDecoder* decoder)
: decoder_(decoder) {}
// Unused by tests.
std::vector<AudioCodecSpec> GetSupportedDecoders() override {
RTC_DCHECK_NOTREACHED();
return {};
}
bool IsSupportedDecoder(const SdpAudioFormat& format) override {
return true;
}
std::unique_ptr<AudioDecoder> MakeAudioDecoder(
const SdpAudioFormat& /* format */,
absl::optional<AudioCodecPairId> /* codec_pair_id */) override {
return std::make_unique<DecoderProxy>(decoder_);
}
private:
// Wrapper class, since CreateAudioDecoder needs to surrender
// ownership to the object it returns.
class DecoderProxy final : public AudioDecoder {
public:
explicit DecoderProxy(AudioDecoder* decoder) : decoder_(decoder) {}
private:
std::vector<ParseResult> ParsePayload(rtc::Buffer&& payload,
uint32_t timestamp) override {
return decoder_->ParsePayload(std::move(payload), timestamp);
}
bool HasDecodePlc() const override { return decoder_->HasDecodePlc(); }
int ErrorCode() override { return decoder_->ErrorCode(); }
void Reset() override { decoder_->Reset(); }
int SampleRateHz() const override { return decoder_->SampleRateHz(); }
size_t Channels() const override { return decoder_->Channels(); }
int DecodeInternal(const uint8_t* encoded,
size_t encoded_len,
int sample_rate_hz,
int16_t* decoded,
SpeechType* speech_type) override {
// Needed for tests of NetEqImpl::DecodeCng, which calls the deprecated
// Decode method.
size_t max_decoded_bytes =
decoder_->PacketDuration(encoded, encoded_len) *
decoder_->Channels() * sizeof(int16_t);
return decoder_->Decode(encoded, encoded_len, sample_rate_hz,
max_decoded_bytes, decoded, speech_type);
}
void GeneratePlc(size_t requested_samples_per_channel,
rtc::BufferT<int16_t>* concealment_audio) override {
decoder_->GeneratePlc(requested_samples_per_channel, concealment_audio);
}
AudioDecoder* const decoder_;
};
AudioDecoder* const decoder_;
};
} // namespace test
} // namespace webrtc
#endif // TEST_AUDIO_DECODER_PROXY_FACTORY_H_
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