From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../modules/audio_coding/neteq/tools/audio_loop.h | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 third_party/libwebrtc/modules/audio_coding/neteq/tools/audio_loop.h (limited to 'third_party/libwebrtc/modules/audio_coding/neteq/tools/audio_loop.h') diff --git a/third_party/libwebrtc/modules/audio_coding/neteq/tools/audio_loop.h b/third_party/libwebrtc/modules/audio_coding/neteq/tools/audio_loop.h new file mode 100644 index 0000000000..f5f0b59011 --- /dev/null +++ b/third_party/libwebrtc/modules/audio_coding/neteq/tools/audio_loop.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2013 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 MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_LOOP_H_ +#define MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_LOOP_H_ + +#include +#include + +#include "absl/strings/string_view.h" +#include "api/array_view.h" + +namespace webrtc { +namespace test { + +// Class serving as an infinite source of audio, realized by looping an audio +// clip. +class AudioLoop { + public: + AudioLoop() + : next_index_(0), loop_length_samples_(0), block_length_samples_(0) {} + + virtual ~AudioLoop() {} + + AudioLoop(const AudioLoop&) = delete; + AudioLoop& operator=(const AudioLoop&) = delete; + + // Initializes the AudioLoop by reading from `file_name`. The loop will be no + // longer than `max_loop_length_samples`, if the length of the file is + // greater. Otherwise, the loop length is the same as the file length. + // The audio will be delivered in blocks of `block_length_samples`. + // Returns false if the initialization failed, otherwise true. + bool Init(absl::string_view file_name, + size_t max_loop_length_samples, + size_t block_length_samples); + + // Returns a (pointer,size) pair for the next block of audio. The size is + // equal to the `block_length_samples` Init() argument. + rtc::ArrayView GetNextBlock(); + + private: + size_t next_index_; + size_t loop_length_samples_; + size_t block_length_samples_; + std::unique_ptr audio_array_; +}; + +} // namespace test +} // namespace webrtc +#endif // MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_LOOP_H_ -- cgit v1.2.3