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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
70 lines
2.7 KiB
C++
70 lines
2.7 KiB
C++
/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/audio_coding/neteq/tools/constant_pcm_packet_source.h"
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#include <algorithm>
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#include "modules/audio_coding/codecs/pcm16b/pcm16b.h"
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#include "modules/audio_coding/neteq/tools/packet.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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namespace test {
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ConstantPcmPacketSource::ConstantPcmPacketSource(size_t payload_len_samples,
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int16_t sample_value,
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int sample_rate_hz,
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int payload_type)
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: payload_len_samples_(payload_len_samples),
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packet_len_bytes_(2 * payload_len_samples_ + kHeaderLenBytes),
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samples_per_ms_(sample_rate_hz / 1000),
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next_arrival_time_ms_(0.0),
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payload_type_(payload_type),
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seq_number_(0),
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timestamp_(0),
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payload_ssrc_(0xABCD1234) {
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size_t encoded_len = WebRtcPcm16b_Encode(&sample_value, 1, encoded_sample_);
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RTC_CHECK_EQ(2U, encoded_len);
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}
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std::unique_ptr<Packet> ConstantPcmPacketSource::NextPacket() {
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RTC_CHECK_GT(packet_len_bytes_, kHeaderLenBytes);
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uint8_t* packet_memory = new uint8_t[packet_len_bytes_];
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// Fill the payload part of the packet memory with the pre-encoded value.
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for (unsigned i = 0; i < 2 * payload_len_samples_; ++i)
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packet_memory[kHeaderLenBytes + i] = encoded_sample_[i % 2];
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WriteHeader(packet_memory);
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// |packet| assumes ownership of |packet_memory|.
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std::unique_ptr<Packet> packet(
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new Packet(packet_memory, packet_len_bytes_, next_arrival_time_ms_));
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next_arrival_time_ms_ += payload_len_samples_ / samples_per_ms_;
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return packet;
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}
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void ConstantPcmPacketSource::WriteHeader(uint8_t* packet_memory) {
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packet_memory[0] = 0x80;
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packet_memory[1] = static_cast<uint8_t>(payload_type_);
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packet_memory[2] = seq_number_ >> 8;
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packet_memory[3] = seq_number_ & 0xFF;
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packet_memory[4] = timestamp_ >> 24;
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packet_memory[5] = (timestamp_ >> 16) & 0xFF;
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packet_memory[6] = (timestamp_ >> 8) & 0xFF;
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packet_memory[7] = timestamp_ & 0xFF;
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packet_memory[8] = payload_ssrc_ >> 24;
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packet_memory[9] = (payload_ssrc_ >> 16) & 0xFF;
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packet_memory[10] = (payload_ssrc_ >> 8) & 0xFF;
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packet_memory[11] = payload_ssrc_ & 0xFF;
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++seq_number_;
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timestamp_ += static_cast<uint32_t>(payload_len_samples_);
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}
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} // namespace test
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} // namespace webrtc
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