rtsp/rtmp/mp4支持opus并整理代码

src/Extension/CommonRtmp.cpp

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
+ *
+ * This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
+ *
+ * Use of this source code is governed by MIT license that can be found in the
+ * LICENSE file in the root of the source tree. All contributing project authors
+ * may be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "CommonRtmp.h"
+
+namespace mediakit{
+
+CommonRtmpDecoder::CommonRtmpDecoder(CodecId codec) {
+    _codec = codec;
+    obtainFrame();
+}
+
+CodecId CommonRtmpDecoder::getCodecId() const {
+    return _codec;
+}
+
+void CommonRtmpDecoder::obtainFrame() {
+    //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
+    _frame = ResourcePoolHelper<FrameImp>::obtainObj();
+    _frame->_buffer.clear();
+    _frame->_codec_id = _codec;
+    _frame->_prefix_size = 0;
+}
+
+bool CommonRtmpDecoder::inputRtmp(const RtmpPacket::Ptr &rtmp, bool) {
+    //拷贝负载
+    _frame->_buffer.assign(rtmp->strBuf.data() + 1, rtmp->strBuf.size() - 1);
+    _frame->_dts = rtmp->timeStamp;
+    //写入环形缓存
+    RtmpCodec::inputFrame(_frame);
+    //创建下一帧
+    obtainFrame();
+    return false;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////
+
+CommonRtmpEncoder::CommonRtmpEncoder(const Track::Ptr &track) : CommonRtmpDecoder(track->getCodecId()) {
+    _audio_flv_flags = getAudioRtmpFlags(track);
+}
+
+void CommonRtmpEncoder::inputFrame(const Frame::Ptr &frame) {
+    if (!_audio_flv_flags) {
+        return;
+    }
+    RtmpPacket::Ptr rtmp = ResourcePoolHelper<RtmpPacket>::obtainObj();
+    rtmp->strBuf.clear();
+    //header
+    rtmp->strBuf.push_back(_audio_flv_flags);
+    //data
+    rtmp->strBuf.append(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+    rtmp->bodySize = rtmp->strBuf.size();
+    rtmp->chunkId = CHUNK_AUDIO;
+    rtmp->streamId = STREAM_MEDIA;
+    rtmp->timeStamp = frame->dts();
+    rtmp->typeId = MSG_AUDIO;
+    RtmpCodec::inputRtmp(rtmp, false);
+}
+
+}//namespace mediakit