rhubarb-lip-sync/lib/webrtc-8d2248ff/webrtc/test/testsupport/packet_reader.cc

50 lines
1.4 KiB
C++

/*
* Copyright (c) 2011 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.
*/
#include "webrtc/test/testsupport/packet_reader.h"
#include <assert.h>
#include <stdio.h>
#include <algorithm>
namespace webrtc {
namespace test {
PacketReader::PacketReader()
: initialized_(false) {}
PacketReader::~PacketReader() {}
void PacketReader::InitializeReading(uint8_t* data,
size_t data_length_in_bytes,
size_t packet_size_in_bytes) {
assert(data);
assert(packet_size_in_bytes > 0);
data_ = data;
data_length_ = data_length_in_bytes;
packet_size_ = packet_size_in_bytes;
currentIndex_ = 0;
initialized_ = true;
}
int PacketReader::NextPacket(uint8_t** packet_pointer) {
if (!initialized_) {
fprintf(stderr, "Attempting to use uninitialized PacketReader!\n");
return -1;
}
*packet_pointer = data_ + currentIndex_;
size_t old_index = currentIndex_;
currentIndex_ = std::min(currentIndex_ + packet_size_, data_length_);
return static_cast<int>(currentIndex_ - old_index);
}
} // namespace test
} // namespace webrtc