// Copyright 2019 Fuzhou Rockchip Electronics Co., Ltd. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "buffer.h"
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#include "flow.h"
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#include "link_config.h"
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#include "stream.h"
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#include "utils.h"
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namespace easymedia
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{
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static bool process_buffer(Flow* f, MediaBufferVector& input_vector);
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class _API LinkFlow : public Flow
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{
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public:
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LinkFlow(const char* param);
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virtual ~LinkFlow();
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static const char* GetFlowName()
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{
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return "link_flow";
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}
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int Control(unsigned long int request, ...);
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private:
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friend bool process_buffer(Flow* f, MediaBufferVector& input_vector);
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private:
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int enable;
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int socket_fd;
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};
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LinkFlow::LinkFlow(const char* param)
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{
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std::map<std::string, std::string> params;
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if (!parse_media_param_map(param, params)) {
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SetError(-EINVAL);
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return;
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}
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SetVideoHandler(nullptr);
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SetAudioHandler(nullptr);
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SetCaptureHandler(nullptr);
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SetUserCallBack(nullptr, nullptr);
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SlotMap sm;
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sm.input_slots.push_back(0);
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sm.thread_model = Model::ASYNCCOMMON;
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sm.mode_when_full = InputMode::DROPCURRENT;
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sm.input_maxcachenum.push_back(0);
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sm.process = process_buffer;
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if (!InstallSlotMap(sm, "LinkFLow", 0)) {
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LOG("Fail to InstallSlotMap for LinkFLow\n");
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return;
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}
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SetFlowTag("LinkFLow");
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}
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LinkFlow::~LinkFlow()
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{
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StopAllThread();
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}
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bool process_buffer(Flow* f, MediaBufferVector& input_vector)
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{
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LinkFlow* flow = static_cast<LinkFlow*>(f);
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auto& buffer = input_vector[0];
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if (!buffer || !flow) {
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return false;
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}
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if (flow->enable > 0) {
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auto link_handler = flow->GetCaptureHandler();
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if (link_handler) {
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link_handler((unsigned char*)buffer->GetPtr(), buffer->GetValidSize(), flow->socket_fd,
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buffer->GetFrameSequenceNumber());
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flow->enable--;
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}
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}
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return false;
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}
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static const uint32_t kSocket_fd = (1 << 0);
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static const uint32_t kEnable_Link = (1 << 1);
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int LinkFlow::Control(unsigned long int request, ...)
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{
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va_list ap;
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va_start(ap, request);
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auto value = va_arg(ap, int);
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va_end(ap);
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assert(value);
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switch (request) {
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case kSocket_fd:
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socket_fd = value;
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break;
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case kEnable_Link:
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enable = value;
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break;
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}
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return 0;
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}
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DEFINE_FLOW_FACTORY(LinkFlow, Flow)
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const char* FACTORY(LinkFlow)::ExpectedInputDataType()
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{
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return nullptr;
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}
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const char* FACTORY(LinkFlow)::OutPutDataType()
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{
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return "";
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}
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} // namespace easymedia
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