1 /*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2021. All rights reserved.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <mutex>
17 #include <sys/types.h>
18
19 #include "stream_plugin.h"
20
21 namespace {
22 constexpr uint32_t MAX_BUFFER_SIZE = 4 * 1024 * 1024;
23 std::unique_ptr<StreamPlugin> g_plugin = nullptr;
24 std::mutex g_taskMutex;
25 } // namespace
26
StreamPluginSessionStart(const uint8_t* configData, uint32_t configSize)27 static int StreamPluginSessionStart(const uint8_t* configData, uint32_t configSize)
28 {
29 std::lock_guard<std::mutex> guard(g_taskMutex);
30 return g_plugin->Start(configData, configSize);
31 }
32
StreamPluginSessionStop()33 static int StreamPluginSessionStop()
34 {
35 std::lock_guard<std::mutex> guard(g_taskMutex);
36 g_plugin->Stop();
37 g_plugin = nullptr;
38 return 0;
39 }
40
StreamRegisterWriterStruct(WriterStruct* writer)41 static int StreamRegisterWriterStruct(WriterStruct* writer)
42 {
43 std::lock_guard<std::mutex> guard(g_taskMutex);
44 g_plugin = std::make_unique<StreamPlugin>();
45 g_plugin->SetWriter(writer);
46 return 0;
47 }
48
49 static PluginModuleCallbacks g_callbacks = {
50 .onPluginSessionStart = StreamPluginSessionStart,
51 .onPluginReportResult = 0,
52 .onPluginSessionStop = StreamPluginSessionStop,
53 .onRegisterWriterStruct = (RegisterWriterStructCallback)StreamRegisterWriterStruct,
54 };
55
56 EXPORT_API PluginModuleStruct g_pluginModule = {
57 .callbacks = &g_callbacks,
58 .name = "stream-plugin",
59 .version = "1.02",
60 .resultBufferSizeHint = MAX_BUFFER_SIZE,
61 };