obs-websocket/src/eventhandler/EventHandler_MediaInputs.cpp

/*
obs-websocket
Copyright (C) 2016-2021 Stephane Lepin <stephane.lepin@gmail.com>
Copyright (C) 2020-2021 Kyle Manning <tt2468@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program. If not, see <https://www.gnu.org/licenses/>
*/

#include "EventHandler.h"

#define CASE(x) \
	case x: \
		return #x;

std::string GetMediaInputActionString(ObsMediaInputAction action)
{
	switch (action) {
	default:
		CASE(OBS_WEBSOCKET_MEDIA_INPUT_ACTION_PAUSE)
		CASE(OBS_WEBSOCKET_MEDIA_INPUT_ACTION_PLAY)
		CASE(OBS_WEBSOCKET_MEDIA_INPUT_ACTION_RESTART)
		CASE(OBS_WEBSOCKET_MEDIA_INPUT_ACTION_STOP)
		CASE(OBS_WEBSOCKET_MEDIA_INPUT_ACTION_NEXT)
		CASE(OBS_WEBSOCKET_MEDIA_INPUT_ACTION_PREVIOUS)
	}
}

void EventHandler::SourceMediaPauseMultiHandler(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	eventHandler->HandleMediaInputActionTriggered(source, OBS_WEBSOCKET_MEDIA_INPUT_ACTION_PAUSE);
}

void EventHandler::SourceMediaPlayMultiHandler(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	eventHandler->HandleMediaInputActionTriggered(source, OBS_WEBSOCKET_MEDIA_INPUT_ACTION_PLAY);
}

void EventHandler::SourceMediaRestartMultiHandler(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	eventHandler->HandleMediaInputActionTriggered(source, OBS_WEBSOCKET_MEDIA_INPUT_ACTION_RESTART);
}

void EventHandler::SourceMediaStopMultiHandler(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	eventHandler->HandleMediaInputActionTriggered(source, OBS_WEBSOCKET_MEDIA_INPUT_ACTION_STOP);
}

void EventHandler::SourceMediaNextMultiHandler(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	eventHandler->HandleMediaInputActionTriggered(source, OBS_WEBSOCKET_MEDIA_INPUT_ACTION_NEXT);
}

void EventHandler::SourceMediaPreviousMultiHandler(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	eventHandler->HandleMediaInputActionTriggered(source, OBS_WEBSOCKET_MEDIA_INPUT_ACTION_PREVIOUS);
}

/**
 * A media input has started playing.
 *
 * @dataField inputName | String | Name of the input
 *
 * @eventType MediaInputPlaybackStarted
 * @eventSubscription MediaInputs
 * @complexity 2
 * @rpcVersion -1
 * @initialVersion 5.0.0
 * @api events
 * @category media inputs
 */
void EventHandler::HandleMediaInputPlaybackStarted(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	json eventData;
	eventData["inputName"] = obs_source_get_name(source);
	eventHandler->BroadcastEvent(EventSubscription::MediaInputs, "MediaInputPlaybackStarted", eventData);
}

/**
 * A media input has finished playing.
 *
 * @dataField inputName | String | Name of the input
 *
 * @eventType MediaInputPlaybackEnded
 * @eventSubscription MediaInputs
 * @complexity 2
 * @rpcVersion -1
 * @initialVersion 5.0.0
 * @api events
 * @category media inputs
 */
void EventHandler::HandleMediaInputPlaybackEnded(void *param, calldata_t *data)
{
	auto eventHandler = static_cast<EventHandler *>(param);

	obs_source_t *source = GetCalldataPointer<obs_source_t>(data, "source");
	if (!source)
		return;

	if (obs_source_get_type(source) != OBS_SOURCE_TYPE_INPUT)
		return;

	json eventData;
	eventData["inputName"] = obs_source_get_name(source);
	eventHandler->BroadcastEvent(EventSubscription::MediaInputs, "MediaInputPlaybackEnded", eventData);
}

/**
 * An action has been performed on an input.
 *
 * @dataField inputName   | String | Name of the input
 * @dataField mediaAction | String | Action performed on the input. See `ObsMediaInputAction` enum
 *
 * @eventType MediaInputActionTriggered
 * @eventSubscription MediaInputs
 * @complexity 2
 * @rpcVersion -1
 * @initialVersion 5.0.0
 * @api events
 * @category media inputs
 */
void EventHandler::HandleMediaInputActionTriggered(obs_source_t *source, ObsMediaInputAction action)
{
	json eventData;
	eventData["inputName"] = obs_source_get_name(source);
	eventData["mediaAction"] = GetMediaInputActionString(action);
	BroadcastEvent(EventSubscription::MediaInputs, "MediaInputActionTriggered", eventData);
}