Add field for earliest item in changing items' volume linearly; Add s…

…cript for changing item's volume linearly with no inputs

Utilities/MB_Change selected items' volume linearly from earliest item volume to entered target volume.lua

@@ -3,30 +3,39 @@
 reaper.Undo_BeginBlock()
 reaper.PreventUIRefresh(1)
 
-local num_selected_items, retval, target_volume_str, target_volume, first_item, last_item, first_item_vol, last_item_vol, first_item_pos, last_item_pos, slope
+local num_selected_items, retval, input_str, target_volume, start_volume, first_item, last_item, first_item_vol, last_item_vol, first_item_pos, last_item_pos, slope
 
 num_selected_items = reaper.CountSelectedMediaItems(0)
 
-if num_selected_items < 2 then 
-  return 
-end
+if num_selected_items < 2 then return end
 
-retval, target_volume_str = reaper.GetUserInputs("Set Volume", 1, "Target Volume for Last Item (dB):", "")
+retval, input_str = reaper.GetUserInputs("Set Volumes", 2, "Start Volume for First Item (dB):,Target Volume for Last Item (dB):", ",")
 
-if not retval then 
-  return 
-end
+if not retval then return end
 
-target_volume = tonumber(target_volume_str)
+start_volume, target_volume = input_str:match("([^,]+),([^,]+)")
+first_item = reaper.GetSelectedMediaItem(0, 0)
+first_item_vol = reaper.GetMediaItemInfo_Value(first_item, "D_VOL")
 
-if target_volume == nil then 
-  return 
+if start_volume ~= "" then
+  start_volume = tonumber(start_volume)
+
+  if start_volume then
+    first_item_vol = 10 ^ (start_volume / 20)
+  end
 end
 
-first_item = reaper.GetSelectedMediaItem(0, 0)
 last_item = reaper.GetSelectedMediaItem(0, num_selected_items - 1)
-first_item_vol = reaper.GetMediaItemInfo_Value(first_item, "D_VOL")
-last_item_vol = 10 ^ (target_volume / 20)
+last_item_vol = reaper.GetMediaItemInfo_Value(last_item, "D_VOL")
+
+if target_volume ~= "" then
+  target_volume = tonumber(target_volume)
+
+  if target_volume then
+    last_item_vol = 10 ^ (target_volume / 20)
+  end
+end
+
 first_item_pos = reaper.GetMediaItemInfo_Value(first_item, "D_POSITION")
 last_item_pos = reaper.GetMediaItemInfo_Value(last_item, "D_POSITION")
 slope = (last_item_vol - first_item_vol) / (last_item_pos - first_item_pos)
@@ -37,7 +46,7 @@ for i = 0, num_selected_items - 1 do
   item = reaper.GetSelectedMediaItem(0, i)
   item_pos = reaper.GetMediaItemInfo_Value(item, "D_POSITION")
   new_vol = first_item_vol + slope * (item_pos - first_item_pos)
-  
+
   reaper.SetMediaItemInfo_Value(item, "D_VOL", new_vol)
 end
 

Utilities/MB_Change selected items' volume linearly from earliest to latest item volumes.lua

@@ -0,0 +1,32 @@
+-- @noindex
+
+reaper.Undo_BeginBlock()
+reaper.PreventUIRefresh(1)
+
+local num_selected_items, first_item, last_item, first_item_vol, last_item_vol, first_item_pos, last_item_pos, slope
+
+num_selected_items = reaper.CountSelectedMediaItems(0)
+
+if num_selected_items < 2 then return end
+
+first_item = reaper.GetSelectedMediaItem(0, 0)
+last_item = reaper.GetSelectedMediaItem(0, num_selected_items - 1)
+first_item_vol = reaper.GetMediaItemInfo_Value(first_item, "D_VOL")
+last_item_vol = reaper.GetMediaItemInfo_Value(last_item, "D_VOL")
+first_item_pos = reaper.GetMediaItemInfo_Value(first_item, "D_POSITION")
+last_item_pos = reaper.GetMediaItemInfo_Value(last_item, "D_POSITION")
+slope = (last_item_vol - first_item_vol) / (last_item_pos - first_item_pos)
+
+for i = 0, num_selected_items - 1 do
+  local item, item_pos, new_vol
+
+  item = reaper.GetSelectedMediaItem(0, i)
+  item_pos = reaper.GetMediaItemInfo_Value(item, "D_POSITION")
+  new_vol = first_item_vol + slope * (item_pos - first_item_pos)
+
+  reaper.SetMediaItemInfo_Value(item, "D_VOL", new_vol)
+end
+
+reaper.UpdateTimeline()
+reaper.PreventUIRefresh(-1)
+reaper.Undo_EndBlock("MB_Change selected items' volume linearly from earliest to latest item volumes", -1)

Utilities/MB_Select child (descendent) track(s) & deselect selected parent folder track(s).lua

@@ -1,9 +1,10 @@
 -- @description MB_Utilities: Various utility scripts for Reaper
 -- @author MonkeyBars
--- @version 1.5
--- @changelog Add script for changing items' volume linearly
+-- @version 1.5.1
+-- @changelog Add field for earliest item in changing items' volume linearly; Add script for changing item's volume linearly with no inputs
 -- @provides [main] .
 --   [main] MB_Change selected items' volume linearly from earliest item volume to entered target volume.lua
+--   [main] MB_Change selected items' volume linearly from earliest to latest item volumes.lua
 --   [main] MB_Create new autoincremented folder and save project.lua
 --   [main] MB_Create new pair of grouped tracks with MIDI & stereo audio routing to & from selected (virtual instrument) tracks.lua
 --   [main] MB_Deselect tracks if child track(s) & select their direct parent folder track(s).lua