| /* |
| * Copyright (c) 2014 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_CONSTANT_PCM_PACKET_SOURCE_H_ |
| #define WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_CONSTANT_PCM_PACKET_SOURCE_H_ |
| |
| #include <stdio.h> |
| #include <string> |
| |
| #include "webrtc/common_types.h" |
| #include "webrtc/modules/audio_coding/neteq/tools/packet_source.h" |
| #include "webrtc/rtc_base/constructormagic.h" |
| |
| namespace webrtc { |
| namespace test { |
| |
| // This class implements a packet source that delivers PCM16b encoded packets |
| // with a constant sample value. The payload length, constant sample value, |
| // sample rate, and payload type are all set in the constructor. |
| class ConstantPcmPacketSource : public PacketSource { |
| public: |
| ConstantPcmPacketSource(size_t payload_len_samples, |
| int16_t sample_value, |
| int sample_rate_hz, |
| int payload_type); |
| |
| std::unique_ptr<Packet> NextPacket() override; |
| |
| private: |
| void WriteHeader(uint8_t* packet_memory); |
| |
| const size_t kHeaderLenBytes = 12; |
| const size_t payload_len_samples_; |
| const size_t packet_len_bytes_; |
| uint8_t encoded_sample_[2]; |
| const int samples_per_ms_; |
| double next_arrival_time_ms_; |
| const int payload_type_; |
| uint16_t seq_number_; |
| uint32_t timestamp_; |
| const uint32_t payload_ssrc_; |
| |
| RTC_DISALLOW_COPY_AND_ASSIGN(ConstantPcmPacketSource); |
| }; |
| |
| } // namespace test |
| } // namespace webrtc |
| #endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_CONSTANT_PCM_PACKET_SOURCE_H_ |