obs二开_播放媒体源

  • 开发
  • 32
struct AddSourceData {
	obs_source_t *source;
	bool visible;
	obs_transform_info *transform = nullptr;
	obs_sceneitem_crop *crop = nullptr;
	obs_blending_method *blend_method = nullptr;
	obs_blending_type *blend_mode = nullptr;
};

//添加源及设置滤镜
void AddSourceEx(void *_data, obs_scene_t *scene)
{
	AddSourceData *data = (AddSourceData *)_data;
	obs_sceneitem_t *sceneitem;
	sceneitem = obs_scene_add(scene, data->source);

	if (data->transform != nullptr)
		obs_sceneitem_set_info(sceneitem, data->transform);
	if (data->crop != nullptr)
		obs_sceneitem_set_crop(sceneitem, data->crop);
	if (data->blend_method != nullptr)
		obs_sceneitem_set_blending_method(sceneitem, *data->blend_method);
	if (data->blend_mode != nullptr)
		obs_sceneitem_set_blending_mode(sceneitem, *data->blend_mode);

	obs_sceneitem_set_visible(sceneitem, data->visible);
	obs_sceneitem_set_locked(sceneitem, true);

	obs_video_info ovi;
	obs_get_video_info(&ovi);

	obs_transform_info info;
	obs_sceneitem_get_info(sceneitem, &info);

	auto filter = obs_source_get_filter_by_name(data->source, "Mp4Alpha");
	if (!filter) 
	{
		filter = obs_source_create("mp4_alpha_filter", "Mp4Alpha", NULL, nullptr);
	}

	OBSDataAutoRelease curr_settings1 = obs_source_get_settings(filter);

	if (ovi.base_width > ovi.base_height) 
	{
		uint32_t targetWidth = 750 / 1334.0 * ovi.base_height;
		info.pos.x = (ovi.base_width - targetWidth) / 2;
		info.pos.y = 0;
		obs_data_set_int(curr_settings1, "cx", targetWidth);
		obs_data_set_int(curr_settings1, "cy", ovi.base_height);
	} 
	else 
	{
		uint32_t targetHeight = ovi.base_width / (750 / 1334.0);
		info.pos.x = 0;
		info.pos.y = (ovi.base_height - targetHeight) / 2;
		obs_data_set_int(curr_settings1, "cx", ovi.base_width);
		obs_data_set_int(curr_settings1, "cy", targetHeight);
	}
	obs_sceneitem_set_info(sceneitem, &info);
	obs_source_update(filter, curr_settings1);
}

//播放有滤镜的媒体源
void OBSBasic::giftPlay(QListWidgetItem *item)
{
	//读取自定义qt控件存储的媒体source中对应的MP3文件路径mp3Path和MP4文件路径mp4Path ，请自行修改
	auto mp3Path = item->data(Qt::UserRole).toString();
	auto mp4Path = item->data(Qt::UserRole + 1).toString();
	
	//自己添加的source名称
	const char *name = "mp4alpha";
	const char *id = "ffmpeg_source";
	const char *v_id = obs_get_latest_input_type_id(id);

	OBSScene scene = GetCurrentScene();
	if (!scene)
		return;
		
	OBSSourceAutoRelease source = obs_get_source_by_name(name);
	//如果已创建source
	if (source) {
		OBSDataAutoRelease curr_settings = obs_source_get_settings(source);
		//设置source属性
		obs_data_set_string(curr_settings, "local_file", QT_TO_UTF8(mp4Path));
		obs_source_update(source, curr_settings);

		auto senceItem = obs_scene_find_source(scene, name);
		//如果souce在源管理器中存在
		if (senceItem) {
			obs_video_info ovi;
			obs_get_video_info(&ovi);
			obs_transform_info info;
			obs_sceneitem_get_info(senceItem , &info);
			//获取播放透明通道alpha的滤镜
			auto filter = obs_source_get_filter_by_name( source, "Mp4Alpha");
			if (!filter) {
				filter = obs_source_create( "mp4_alpha_filter",	"Mp4Alpha", NULL, nullptr);
			}
			//根据视口大小设置滤镜属性
			OBSDataAutoRelease curr_settings1 =	obs_source_get_settings(filter);			
			if (ovi.base_width > ovi.base_height) 
			{
				//MP4资源默认的宽高像素
				uint32_t targetWidth = 750 / 1334.0 * ovi.base_height;
				info.pos.x = (ovi.base_width - targetWidth) / 2;
				info.pos.y = 0;
				obs_data_set_int(curr_settings1, "cx", targetWidth);
				obs_data_set_int( curr_settings1, "cy", ovi.base_height);
			} 
			else 
			{
				uint32_t targetHeight = ovi.base_width / (750 / 1334.0);
				info.pos.x = 0;
				info.pos.y = (ovi.base_height - targetHeight) / 2;
				obs_data_set_int( curr_settings1, "cx", ovi.base_width);
				obs_data_set_int(curr_settings1, "cy", targetHeight);
			}
			obs_sceneitem_set_info(senceItem, &info);
			obs_source_update(filter, curr_settings1);
			//获取媒体源播放状态
			obs_media_state state = obs_source_media_get_state(source);
			switch (state) {
			case OBS_MEDIA_STATE_PLAYING:
				obs_source_media_stop(source);
				break;
			case OBS_MEDIA_STATE_NONE:
			case OBS_MEDIA_STATE_OPENING:
			case OBS_MEDIA_STATE_BUFFERING:
			case OBS_MEDIA_STATE_PAUSED:
			case OBS_MEDIA_STATE_STOPPED:
			case OBS_MEDIA_STATE_ENDED:
				obs_source_media_restart(source);
				break;
			case OBS_MEDIA_STATE_ERROR:
				break;
			default:
				break;
			}
		} 
		else
		 {
		 	//如果souce在源管理器中不存在
			AddSourceData data;
			data.source = source;
			data.visible = true;
			obs_enter_graphics();
			obs_scene_atomic_update(scene, AddSourceEx, &data);
			obs_leave_graphics();

			/* set monitoring if source monitors by default */
			uint32_t flags = obs_source_get_output_flags(source);
			if ((flags & OBS_SOURCE_MONITOR_BY_DEFAULT) != 0) 
			{
				obs_source_set_monitoring_type( source, OBS_MONITORING_TYPE_MONITOR_ONLY);
			}
			SetSourceMixerHidden(source, true);
			obs_source_set_hidden(source, true);
			flags |= OBS_SOURCE_CAP_DISABLED;
			obs_source_set_flags(source, flags);
		}
	} 
	else 
	{
		//如果未创建source
		source = obs_source_create(v_id, name, NULL, nullptr);
		if (source) {
			OBSDataAutoRelease curr_settings = obs_source_get_settings(source);
			//设置source属性
			obs_data_set_string(curr_settings, "local_file", QT_TO_UTF8(mp4Path));
			obs_data_set_bool(curr_settings, "restart_on_activate", false);
			obs_source_update(source, curr_settings);
			auto filter = obs_source_get_filter_by_name( source, "Mp4Alpha");
			if (!filter) {
				filter = obs_source_create( "mp4_alpha_filter", "Mp4Alpha", NULL, nullptr);
			}
			
			//设置滤镜
			OBSDataAutoRelease curr_settings1 = obs_source_get_settings(filter);
			obs_data_set_bool(curr_settings1, "relative", false);
			obs_data_set_int(curr_settings1, "left", 0);
			obs_data_set_int(curr_settings1, "top", 0);
			obs_data_set_int(curr_settings1, "right", 0);
			obs_data_set_int(curr_settings1, "bottom", 0);

			auto senceItem = obs_scene_find_source(scene, name);

			obs_video_info ovi;
			obs_get_video_info(&ovi);
			obs_transform_info info;
			obs_sceneitem_get_info(senceItem, &info);
			if (ovi.base_width > ovi.base_height)
			{
				uint32_t targetWidth = 750 / 1334.0 * ovi.base_height;
				obs_data_set_int(curr_settings1, "cx", targetWidth);
				obs_data_set_int(curr_settings1, "cy", ovi.base_height);
			} 
			else 
			{
				uint32_t targetHeight = ovi.base_width / (750 / 1334.0);
				obs_data_set_int(curr_settings1, "cx", ovi.base_width);
				obs_data_set_int(curr_settings1, "cy", targetHeight);
			}
			
			obs_source_update(filter, curr_settings1);
			//为媒体源添加滤镜
			obs_source_filter_add(source, filter);				

			AddSourceData data;
			data.source = source;
			data.visible = true;
			obs_enter_graphics();
			obs_scene_atomic_update(scene, AddSourceEx, &data);
			obs_leave_graphics();

			/* set monitoring if source monitors by default */
			uint32_t flags = obs_source_get_output_flags(source);
			//取消监听，防止切换场景时自动播放
			if ((flags & OBS_SOURCE_MONITOR_BY_DEFAULT) != 0) 
			{
				obs_source_set_monitoring_type( source, OBS_MONITORING_TYPE_MONITOR_ONLY);
			}
			//隐藏混合
			SetSourceMixerHidden(source, true);
			//源不可见
			obs_source_set_hidden(source, true);
			flags &= OBS_SOURCE_CAP_DISABLED;
			//Source type is currently disabled and should not be shown to the user
			obs_source_set_flags(source, flags);
		}
	}

	name = "mp3alpha";
	source = obs_get_source_by_name(name);
	if (source) 
	{
		OBSDataAutoRelease curr_settings = obs_source_get_settings(source);
		obs_data_set_string(curr_settings, "local_file", QT_TO_UTF8(mp3Path));
		obs_source_update(source, curr_settings);

		auto senceItem = obs_scene_find_source(scene, name);
		if (senceItem) 
		{
			obs_media_state state = obs_source_media_get_state(source);
			switch (state) {
			case OBS_MEDIA_STATE_PLAYING:
				obs_source_media_stop(source);
				break;
			case OBS_MEDIA_STATE_NONE:
			case OBS_MEDIA_STATE_OPENING:
			case OBS_MEDIA_STATE_BUFFERING:
			case OBS_MEDIA_STATE_PAUSED:
			case OBS_MEDIA_STATE_STOPPED:
			case OBS_MEDIA_STATE_ENDED:
				obs_source_media_restart(source);
				break;
			case OBS_MEDIA_STATE_ERROR:
				break;
			default:
				break;
			}
		} 
		else 
		{
			AddSourceData data;
			data.source = source;
			data.visible = false;
			obs_enter_graphics();
			obs_scene_atomic_update(scene, AddSourceEx, &data);
			obs_leave_graphics();

			/* set monitoring if source monitors by default */
			uint32_t flags = obs_source_get_output_flags(source);
			if ((flags & OBS_SOURCE_MONITOR_BY_DEFAULT) != 0)
			 {
				obs_source_set_monitoring_type( source, OBS_MONITORING_TYPE_MONITOR_ONLY);
			}
			SetSourceMixerHidden(source, true);
			obs_source_set_hidden(source, true);
			flags |= OBS_SOURCE_CAP_DISABLED;
			obs_source_set_flags(source, flags);
		}
	} 
	else
	{
		source = obs_source_create(v_id, name, NULL, nullptr);
		if (source) 
		{
			OBSDataAutoRelease curr_settings = obs_source_get_settings(source);
			obs_data_set_string(curr_settings, "local_file", QT_TO_UTF8(mp3Path));
			obs_data_set_bool(curr_settings, "restart_on_activate", false);
			obs_source_update(source, curr_settings);

			AddSourceData data;
			data.source = source;
			data.visible = false;
			obs_enter_graphics();
			obs_scene_atomic_update(scene, AddSourceEx, &data);
			obs_leave_graphics();

			/* set monitoring if source monitors by default */
			uint32_t flags = obs_source_get_output_flags(source);
			if ((flags & OBS_SOURCE_MONITOR_BY_DEFAULT) != 0) {
				obs_source_set_monitoring_type( source, OBS_MONITORING_TYPE_MONITOR_ONLY);
			}

			SetSourceMixerHidden(source, true);
			obs_source_set_hidden(source, true);
			flags |= OBS_SOURCE_CAP_DISABLED;
			obs_source_set_flags(source, flags);
		}
	}
}

说明：后续补充创建源及创建滤镜及如何让源管理界面中不显示

阅读全部

相关推荐

  1. obs二开_播放媒体源

    2024-04-15 10:08:02       33 阅读

最近更新

  3. docker php8.1+nginx base 镜像 dockerfile 配置

    2024-04-15 10:08:02       94 阅读

  4. Could not load dynamic library ‘cudart64_100.dll‘

    2024-04-15 10:08:02       100 阅读

  9. 在Django里面运行非项目文件

    2024-04-15 10:08:02       82 阅读

  19. Python语言-面向对象

    2024-04-15 10:08:02       91 阅读

  20. 如何分清楚常见的 Git 分支管理策略Git Flow、GitHub Flow 和 GitLab Flow

    2024-04-15 10:08:02       85 阅读

热门阅读

  6. kafka---broker相关配置

    2024-04-15 10:08:02       36 阅读

  8. WPF中Binding的原理和应用

    2024-04-15 10:08:02       37 阅读

  11. data_process11

    2024-04-15 10:08:02       32 阅读

  12. 解决 assemble 长时间卡死并失败问题

    2024-04-15 10:08:02       36 阅读

  15. 设计模式-单一职责原则

    2024-04-15 10:08:02       45 阅读

  16. 基于springboot的大学生入学审核系统源码数据库

    2024-04-15 10:08:02       35 阅读

  19. Linux useradd命令教程：如何创建新的用户账户(附实例详解和注意事项)

    2024-04-15 10:08:02       39 阅读

  20. 【C++学习】C++特殊类的设计

    2024-04-15 10:08:02       33 阅读

  21. Python 题解 牛客 OJ在线编程常见输入输出练习

    2024-04-15 10:08:02       37 阅读

  27. oracle 删除用户名

    2024-04-15 10:08:02       38 阅读

  28. 乙级火力发电资质申报攻略：企业资质合规要点梳理

    2024-04-15 10:08:02       32 阅读