COM reference problem

[Chris-Z]

Hello,
I use office OBS to develop some plugin to record video,but face the com reference problem, some code like below(some code from official version, so you may familier with it)

.cpp

if (!InitGlobalConfig())
return false;

char path[512];

if (GetConfigPath(path, sizeof(path), "obs-studio/plugin_config") <= 0)
return false;

if (!obs_startup("zh-CN", path, NULL))
return false;

//curl_global_init(CURL_GLOBAL_ALL); ?
char configPath[512];

int ret = GetProfilePath(configPath, sizeof(configPath), "");
if (ret <= 0) {
return false;
}

if (os_mkdir(configPath) == MKDIR_ERROR) {
return false;
}

ret = GetProfilePath(configPath, sizeof(configPath), "basic.ini");
if (ret <= 0) {
return false;
}

int code = basicConfig.Open(configPath, CONFIG_OPEN_ALWAYS);
if (code != CONFIG_SUCCESS) {
return false;
}

InitBasicConfigDefaults();

AddExtraModulePaths();
obs_load_all_modules();

ResetOutputs();

// create default scene and item
m_Scene = obs_scene_create("Basic.Scene");
if (m_Scene == NULL)
return false;

if (!HasAudioDevices(OUTPUT_AUDIO_SOURCE))
return false;

if (!ResetAudio())
return false;
if (ResetVideo() != 0)
return false;

ResetAudioDevice(OUTPUT_AUDIO_SOURCE, "default",
"Basic.DesktopDevice1", 1);

InitDefaultTransitions();

const char *type;
bool bFoundRecordSource = false;
size_t idx = 0;

while (obs_enum_input_types(idx++, &type))
{
const char *name = obs_source_get_display_name(type);

if (strcmp(type, "scene") == 0)
continue;

#ifdef _DEBUG
const char name2[128] = {0};
memcpy((void*)name2, name, strlen(name));

// NOTE: do not use name directly, UTF8ToEncode will free it
char* what = UTF8ToEncode(name2);

blog(LOG_DEBUG, "name is: %s type is: %s", what, type);
delete what;
#endif
const char* displayName = obs_source_get_display_name(type);

/* possible value
image_source
ffmpeg_source
text_ft2_source
monitor_capture
window_capture
game_capture
dshow_input
wasapi_input_capture
wasapi_output_capture
*/

if (strcmp(type, "monitor_capture") == 0)
{
// 1. create video input source
m_videoInputSource = obs_source_create(type, displayName, NULL, nullptr);

if (m_videoInputSource == NULL)
continue;

// add to scene
AddSourceData data;
data.source = m_videoInputSource;
data.visible = true;

// with this line, when shut down obs, it throw an obs_source_release problem, why
obs_scene_atomic_update(m_Scene, AddSource, &data);

// 3. get default setting
m_videoInputsettings = obs_source_get_settings(m_videoInputSource);

// 4. get default properties
obs_properties_t* properties = obs_source_properties(m_videoInputSource);

#ifdef _DEBUG
// 5. enum properties, to know what properties exist
obs_property_t *property = obs_properties_first(properties);
while (property)
{
AddProperty(property);
obs_property_next(&property);
}

#endif

//obs_source_release(inputsource);
bFoundRecordSource = true;

break;
}


// not exists unless you create it DO NOT USE
//obs_source_t *source = nullptr;
//source = obs_get_source_by_name(type);
//while ((source = obs_get_source_by_name(name)) )
//{
// obs_source_release(source);
//}

}

//obs_enum_sources(EnumSources, NULL);
//obs_scene_release(scene);

if (!bFoundRecordSource)
return false;

StartRecording();

.h file

class TestRecordMonitor
{
    ConfigFile                     globalConfig;
    ConfigFile                       basicConfig;
    TextLookup                     textLookup;
    OBSContext                     obsContext;

    OBSService                        service;// streaming service
    std::unique_ptr<BasicOutputHandler> outputHandler;

    OBSSource                        m_videoInputSource;// com / AddRef / ReRef
    OBSScene                        m_Scene;
    OBSData                         m_videoInputsettings;

 

[Chris-Z]

oh, sorry, I hightlight the code ,but it not works

// with this line, when shut down obs, it throw an obs_source_release problem, why
obs_scene_atomic_update(m_Scene, AddSource, &data);