Add Speed option

Media Source restarts when speed is modified so we have to add such
warning.
We have to disable refreshing properties on settings update because it
will refresh while dragging the speed slider, making it almost
impossible to use it. Thus we also add a button to refresh the current
filename.

Author: CodeYan01

data/locale/en-US.ini

@@ -21,9 +21,12 @@ SubtitleTrack="Subtitle Track"
 SelectFile="Select File"
 NoFileSelected="No File Selected"
 CloseFileWhenInactive="Close file when inactive"
-CloseFileWhenInactive.ToolTip="Closes the file when the source is not being displayed on the stream or\nrecording. This allows the file to be changed when the source isn't active,\nbut there may be some startup delay when the source reactivates."
+CloseFileWhenInactive.Tooltip="Closes the file when the source is not being displayed on the stream or\nrecording. This allows the file to be changed when the source isn't active,\nbut there may be some startup delay when the source reactivates."
 CurrentFileName="Current File"
 VoskFilter="Vosk Speech Recognition"
+Speed="Speed"
+SpeedWarning="Changing the speed WILL restart the video"
+RefreshFilename="Refresh Filename"
 
 MediaFileFilter.AllMediaFiles="All Media Files"
 MediaFileFilter.VideoFiles="Video Files"

src/media-playlist-source.c

@@ -30,6 +30,8 @@ with this program. If not, see <https://www.gnu.org/licenses/>
 #define S_CURRENT_FOLDER_ITEM_FILENAME "current_folder_item_filename"
 #define S_ID "id"
 #define S_IS_URL "is_url"
+#define S_SPEED "speed_percent"
+#define S_REFRESH_FILENAME "refresh_filename"
 
 /* Media Source Settings */
 #define S_FFMPEG_LOCAL_FILE "local_file"
@@ -54,6 +56,9 @@ with this program. If not, see <https://www.gnu.org/licenses/>
 #define T_NO_FILE_SELECTED T_("NoFileSelected")
 #define T_FFMPEG_CLOSE_WHEN_INACTIVE T_("CloseFileWhenInactive")
 #define T_FFMPEG_CLOSE_WHEN_INACTIVE_TOOLTIP T_("CloseFileWhenInactive.Tooltip")
+#define T_SPEED T_("Speed")
+#define T_SPEED_WARNING T_("SpeedWarning")
+#define T_REFRESH_FILENAME T_("RefreshFilename")
 
 #define T_PLAY_PAUSE T_("PlayPause")
 #define T_RESTART T_("Restart")
@@ -213,6 +218,7 @@ static void update_media_source(void *data, bool forced)
 				  !mps->actual_media->is_url);
 		obs_data_set_string(settings, path_setting,
 				    mps->actual_media->path);
+		obs_data_set_int(settings, S_SPEED, mps->speed);
 		obs_source_update(media_source, settings);
 		mps->user_stopped = false;
 	}
@@ -413,6 +419,19 @@ static bool play_selected_clicked(obs_properties_t *props,
 	return true;
 }
 
+static bool refresh_filename_clicked(obs_properties_t *props,
+				     obs_property_t *property, void *data)
+{
+	UNUSED_PARAMETER(props);
+	UNUSED_PARAMETER(property);
+	struct media_playlist_source *mps = data;
+	obs_data_t *settings = obs_source_get_settings(mps->source);
+	update_current_filename_setting(mps, settings);
+	obs_source_update_properties(mps->source);
+	obs_data_release(settings);
+	return true;
+}
+
 /* ------------------------------------------------------------------------- */
 
 static const char *mps_getname(void *unused)
@@ -947,6 +966,7 @@ static void mps_defaults(obs_data_t *settings)
 	obs_data_set_default_int(settings, S_RESTART_BEHAVIOR,
 				 RESTART_BEHAVIOR_CURRENT_FILE);
 	obs_data_set_default_string(settings, S_CURRENT_FILE_NAME, " ");
+	obs_data_set_default_int(settings, S_SPEED, 100);
 }
 
 static void add_media_to_selection(obs_property_t *list,
@@ -1073,6 +1093,8 @@ static obs_properties_t *mps_properties(void *data)
 		"Due to OBS limitations, this will only update if any settings"
 		" are changed, the selected file is played, or the Properties "
 		"window is reopened. It will not update when the video ends.");
+	obs_properties_add_button(props, S_REFRESH_FILENAME, T_REFRESH_FILENAME,
+				  refresh_filename_clicked);
 	//update_current_filename_property(mps, p);
 
 	p = obs_properties_add_list(props, S_SELECT_FILE, T_SELECT_FILE,
@@ -1088,6 +1110,11 @@ static obs_properties_t *mps_properties(void *data)
 	obs_properties_add_button(props, "play_selected", "Play Selected File",
 				  play_selected_clicked);
 
+	p = obs_properties_add_int_slider(props, S_SPEED, T_SPEED, 1, 200, 1);
+	obs_property_int_set_suffix(p, "%");
+	p = obs_properties_add_text(props, "", T_SPEED_WARNING, OBS_TEXT_INFO);
+	obs_property_text_set_info_type(p, OBS_TEXT_INFO_WARNING);
+
 	obs_data_array_release(array);
 	obs_data_release(settings);
 
@@ -1175,6 +1202,7 @@ static void mps_update(void *data, obs_data_t *settings)
 	bool item_edited = false;
 	bool first_update = false;
 	const char *old_media_path = NULL;
+	long long new_speed;
 	//const char *mode;
 
 	/* ------------------------------------- */
@@ -1190,13 +1218,19 @@ static void mps_update(void *data, obs_data_t *settings)
 	mps->shuffle = shuffle;
 	mps->loop = obs_data_get_bool(settings, S_LOOP);
 	shuffler_set_loop(&mps->shuffler, mps->loop);
+	new_speed = obs_data_get_int(settings, S_SPEED);
+	if (mps->speed != new_speed) {
+		mps->user_stopped = true;
+	}
+	mps->speed = new_speed;
 
 	/* Internal media source settings */
 	mps->close_when_inactive =
 		obs_data_get_bool(settings, S_FFMPEG_CLOSE_WHEN_INACTIVE);
 	obs_data_t *media_source_settings = obs_data_create();
 	obs_data_set_bool(media_source_settings, S_FFMPEG_CLOSE_WHEN_INACTIVE,
 			  mps->close_when_inactive);
+	obs_data_set_int(media_source_settings, S_SPEED, mps->speed);
 	obs_source_update(mps->current_media_source, media_source_settings);
 	obs_data_release(media_source_settings);
 
@@ -1336,7 +1370,6 @@ static void mps_update(void *data, obs_data_t *settings)
 
 	/* So Current File Name is updated */
 	update_current_filename_setting(mps, settings);
-	obs_source_update_properties(mps->source);
 	/* ------------------------- */
 
 	//if (mps->files.num) {

src/media-playlist-source.h

@@ -62,6 +62,7 @@ struct media_playlist_source {
 	// to know if current_folder_item_index will be used, check if current file is a folder
 	size_t current_folder_item_index;
 	size_t last_id_count;
+	long long speed;
 
 	obs_hotkey_id play_pause_hotkey;
 	obs_hotkey_id restart_hotkey;