mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 19:20:53 +08:00
89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
/*
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#include <cstdlib>
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#include "RtspSplitter.h"
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#include "Util/logger.h"
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#include "Util/util.h"
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namespace mediakit{
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const char *RtspSplitter::onSearchPacketTail(const char *data, int len) {
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auto ret = onSearchPacketTail_l(data, len);
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if(ret){
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return ret;
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}
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if (len > 256 * 1024) {
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//rtp大于256KB
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ret = (char *) memchr(data, '$', len);
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if (!ret) {
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WarnL << "rtp缓存溢出:" << hexdump(data, 1024);
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reset();
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}
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}
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return ret;
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}
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const char *RtspSplitter::onSearchPacketTail_l(const char *data, int len) {
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if(!_enableRecvRtp || data[0] != '$'){
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//这是rtsp包
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_isRtpPacket = false;
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return HttpRequestSplitter::onSearchPacketTail(data, len);
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}
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//这是rtp包
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if(len < 4){
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//数据不够
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return nullptr;
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}
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uint16_t length = (((uint8_t *)data)[2] << 8) | ((uint8_t *)data)[3];
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if(len < length + 4){
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//数据不够
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return nullptr;
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}
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//返回rtp包末尾
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_isRtpPacket = true;
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return data + 4 + length;
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}
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int64_t RtspSplitter::onRecvHeader(const char *data, uint64_t len) {
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if(_isRtpPacket){
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onRtpPacket(data,len);
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return 0;
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}
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_parser.Parse(data);
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auto ret = getContentLength(_parser);
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if(ret == 0){
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onWholeRtspPacket(_parser);
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_parser.Clear();
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}
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return ret;
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}
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void RtspSplitter::onRecvContent(const char *data, uint64_t len) {
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_parser.setContent(string(data,len));
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onWholeRtspPacket(_parser);
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_parser.Clear();
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}
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void RtspSplitter::enableRecvRtp(bool enable) {
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_enableRecvRtp = enable;
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}
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int64_t RtspSplitter::getContentLength(Parser &parser) {
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return atoi(parser["Content-Length"].data());
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}
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}//namespace mediakit
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