Index: webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h |
diff --git a/webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h b/webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h |
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index 0000000000000000000000000000000000000000..2c51998261c3998baa85345f6fafcab173d865a6 |
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+++ b/webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h |
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+/* |
+ * Copyright (c) 2016 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_NETEQ_TOOLS_FAKE_DECODE_FROM_FILE_H_ |
+#define WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_FAKE_DECODE_FROM_FILE_H_ |
+ |
+#include <memory> |
+ |
+#include "webrtc/base/array_view.h" |
+#include "webrtc/base/optional.h" |
+#include "webrtc/modules/audio_coding/codecs/audio_decoder.h" |
+#include "webrtc/modules/audio_coding/neteq/tools/input_audio_file.h" |
+ |
+namespace webrtc { |
+namespace test { |
+ |
+// Provides an AudioDecoder implementation that delivers audio data from a file. |
+// The "encoded" input should contain information about what RTP timestamp the |
+// encoding represents, and how many samples the decoder should produce for that |
+// encoding. A helper method PrepareEncoded is provided to prepare such |
+// encodings. If packets are missing, as determined from the timestamps, the |
+// file reading will skip forward to match the loss. |
+class FakeDecodeFromFile : public AudioDecoder { |
+ public: |
+ FakeDecodeFromFile(std::unique_ptr<InputAudioFile> input, |
+ int sample_rate_hz, |
+ bool stereo) |
+ : input_(std::move(input)), |
+ sample_rate_hz_(sample_rate_hz), |
+ stereo_(stereo) {} |
+ |
+ ~FakeDecodeFromFile() = default; |
+ |
+ void Reset() override {} |
+ |
+ int SampleRateHz() const override { return sample_rate_hz_; } |
+ |
+ size_t Channels() const override { return stereo_ ? 2 : 1; } |
+ |
+ int DecodeInternal(const uint8_t* encoded, |
+ size_t encoded_len, |
+ int sample_rate_hz, |
+ int16_t* decoded, |
+ SpeechType* speech_type) override; |
+ |
+ // Helper method. Writes |timestamp| and |samples| to |encoded| in a format |
+ // that the FakeDecpdeFromFile decoder will understand. |encoded| must be at |
+ // least 8 bytes long. |
+ static void PrepareEncoded(uint32_t timestamp, |
+ size_t samples, |
+ rtc::ArrayView<uint8_t> encoded); |
+ |
+ private: |
+ std::unique_ptr<InputAudioFile> input_; |
+ rtc::Optional<uint32_t> next_timestamp_from_input_; |
+ const int sample_rate_hz_; |
+ const bool stereo_; |
+}; |
+ |
+} // namespace test |
+} // namespace webrtc |
+#endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_FAKE_DECODE_FROM_FILE_H_ |