[Streamer] Basic framework, YAML parser, ppyoloe demo and video decoder demo (#863)

* support trt installed in sys dir

* streamer init

* link elements and run

* create source bin

* add config

* restruct dirs

* set property

* link elements

* integrate perf

* add bbox parser

* parse yaml to string, video decoder

* use try pull for decoder and nits

* streamer ppyoloe cpp

* update readme

* video decoder cpp dir

* add cn readme

* update readme

* cmake nits

* refactor perf measurement

streamer/examples/video_decoder/cpp/CMakeLists.txt

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+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+PROJECT(video_decoder C CXX)
+CMAKE_MINIMUM_REQUIRED (VERSION 3.10)
+
+option(FASTDEPLOY_INSTALL_DIR "Path of downloaded fastdeploy sdk.")
+include(${FASTDEPLOY_INSTALL_DIR}/FastDeploy.cmake)
+include_directories(${FASTDEPLOY_INCS})
+
+set(FDSTREAMER_INCLUDE_DIR ${PROJECT_SOURCE_DIR}/../../../src/)
+include_directories(${FDSTREAMER_INCLUDE_DIR})
+link_directories(${PROJECT_SOURCE_DIR}/../../../build/)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GSTAPP gstreamer-app-1.0 REQUIRED)
+include_directories(${GSTAPP_INCLUDE_DIRS})
+
+add_executable(video_decoder main.cc)
+target_link_libraries(video_decoder fd_streamer ${FASTDEPLOY_LIBS})

streamer/examples/video_decoder/cpp/README.md

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+README_EN.md

streamer/examples/video_decoder/cpp/README_CN.md

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+简体中文 | [English](README_EN.md)
+
+# FastDeploy Streamer Video Decoder Example
+
+## 编译和运行
+
+1. 需要先FastDeploy Streamer, 请参考[README](../../../README.md)
+
+2. 编译Example
+```
+mkdir build && cd build
+cmake .. -DFASTDEPLOY_INSTALL_DIR=[PATH-OF-FASTDEPLOY-INSTALL-DIR]
+make -j
+```
+
+3. 运行
+```
+cp ../streamer_cfg.yml .
+./video_decoder
+```

streamer/examples/video_decoder/cpp/README_EN.md

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+English | [简体中文](README_CN.md)
+
+# FastDeploy Streamer Video Decoder Example
+
+## Build and Run
+
+1. Build FastDeploy Streamer first, [README](../../../README.md)
+
+2. Build Example
+```
+mkdir build && cd build
+cmake .. -DFASTDEPLOY_INSTALL_DIR=[PATH-OF-FASTDEPLOY-INSTALL-DIR]
+make -j
+```
+
+3. Run
+```
+cp ../streamer_cfg.yml .
+./video_decoder
+```

streamer/examples/video_decoder/cpp/main.cc

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+// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "fd_streamer.h"
+#include "fastdeploy/utils/perf.h"
+#include <opencv2/opencv.hpp>
+
+int main(int argc, char* argv[]) {
+  auto streamer = fastdeploy::streamer::FDStreamer();
+  streamer.Init("streamer_cfg.yml");
+  streamer.RunAsync();
+  int count = 0;
+  fastdeploy::FDTensor tensor;
+  fastdeploy::TimeCounter tc;
+  tc.Start();
+  while (1) {
+    bool ret = streamer.TryPullFrame(tensor);
+    if (!ret) {
+      if (streamer.Destroyed()) break;
+      std::this_thread::sleep_for(std::chrono::milliseconds(1));
+      continue;
+    }
+    count++;
+    tensor.PrintInfo();
+    cv::Mat mat(tensor.shape[0], tensor.shape[1], CV_8UC3, tensor.Data());
+    cv::imwrite("out/" + std::to_string(count) + ".jpg", mat);
+  }
+  std::cout << "Total number of frames: " << count << std::endl;
+  tc.End();
+  tc.PrintInfo();
+  return 0;
+}

streamer/examples/video_decoder/cpp/streamer_cfg.yml

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+app:
+  type: video_decoder
+  enable-perf-measurement: true
+  perf-measurement-interval-sec: 5
+
+nvurisrcbin:
+  uri: file:///opt/nvidia/deepstream/deepstream/samples/streams/sample_ride_bike.mov
+  gpu-id: 0
+
+nvvideoconvert:
+  gpu-id: 0
+
+capsfilter:
+  caps: video/x-raw,format=(string)BGR
+
+appsink:
+  sync: true
+  max-buffers: 60
+  drop: false