Introduced VideoTek() as waveform monitor for video

Readme.md

@@ -1,42 +1,54 @@
-## Various mpv lua scripts
-
-- visualizer.lua - various audio visualization.
+## Waveform Monitor LUA Script for MPV
 
+- VideoTek.lua is a waveform monitor for MPV.
+- visualizer.lua is a script that shows various audio visualization for MPV.
 - firequalizer.lua - linear phase 15-bands equalizer.
 
 ## Key bindings
 
-Look at the lua scripts.
+Both filters are disabled by default.
+<br>
+Press "Y" to turn on "VideoTek" and have a waveform monitor for luma, chroma, phase and loudness.
+<br>
+Press "C" to turn on "Visualizer" and switch between showcqt, avectorscope, showspectrum, showcqtbar and showwaves.
+<br>
+
+## Screenshots
+
+### VideoTek.lua
+
+![VideoTek](Screenshots/VideoTek.jpg)
 
-## Screenshoots
 
 ### visualizer.lua
 
 - showcqt
 
-![showcqt](screenshoots/showcqt.jpg)
+![showcqt](Screenshots/showcqt.jpg)
 
 - avectorscope
 
-![avectorscope](screenshoots/avectorscope.jpg)
+![avectorscope](Screenshots/avectorscope.jpg)
 
 - showspectrum
 
-![showspectrum](screenshoots/showspectrum.jpg)
+![showspectrum](Screenshots/showspectrum.jpg)
 
 - showcqtbar
 
-![showcqtbar](screenshoots/showcqtbar.jpg)
+![showcqtbar](Screenshots/showcqtbar.jpg)
 
 - showwaves
 
-![showwaves](screenshoots/showwaves.jpg)
+![showwaves](Screenshots/showwaves.jpg)
 
 ### firequalizer15.lua
-
-![firequalizer15](screenshoots/firequalizer15.jpg)
+![firequalizer15](Screenshots/firequalizer15.jpg)
 
 ## Related projects
-
 - [HTML5 ShowCQTBar](https://github.com/mfcc64/html5-showcqtbar) - showcqt/showcqtbar visualizer on an HTML5 page.
 - [YouTube Musical Spectrum](https://github.com/mfcc64/youtube-musical-spectrum) - showcqt visualizer as a Chrome extension.
+
+### Contributors
+- mfcc64 for the audio visualizers.
+- Livio Aloja & Francesco Bucciantini for VideoTek.

VideoTek.lua

@@ -0,0 +1,139 @@
+-- various audio visualization
+
+
+
+local opts = {
+    mode = "force",
+    -- off              disable visualization
+    -- force           always enable visualization
+
+
+
+    name = "off",
+    -- off
+    -- tektronix
+
+
+
+    quality = "medium",
+    -- medium
+
+
+
+
+}
+
+
+
+-- key bindings
+-- cycle visualizer
+local cycle_key = "y"
+
+
+
+if not (mp.get_property("options/lavfi-complex", "") == "") then
+    return
+end
+
+
+
+local visualizer_name_list = {
+    "off",
+    "tektronix",
+}
+
+
+
+
+
+local options = require 'mp.options'
+local msg     = require 'mp.msg'
+
+
+
+options.read_options(opts)
+
+local function get_visualizer(name)
+
+
+-- Here we define the Graph
+   if name == "tektronix" then
+        return "color=c=black:s=1280x720[black];[vid1]split=3[v1][v2][v3];[aid1]asplit[a1][a2];[a1]avectorscope=s=240x160:zoom=2:rc=2:gc=200:bc=10:rf=1:gf=8:bf=7[avect-out];[a2]showvolume=r=25:w=140:h=10:t=0:f=0.9[vol-out];[v1]scale=640x360[v1-o];[v2]hflip,waveform=m=1:d=0:r=1:c=7,scale=640x360,setsar=1,hflip[v2-o];[v3]vectorscope=m=0:g=green,scale=300x300,setsar=1[vect];[black][v1-o]overlay=0:0[q1];[q1][vol-out]overlay=640:0[q2];[q2][v2-o]overlay=0:360[q3];[q3][avect-out]overlay=1000:490[q4];[q4][vect]overlay=700:390[q5];[q5] setpts=PTS [vo]"
+        elseif name == "off" then
+        return "[aid1] asetpts=PTS [ao]; [vid1] setpts=PTS [vo]"
+    end
+    msg.log("error", "invalid visualizer name")
+    return ""
+end
+
+
+
+local function select_visualizer(atrack, vtrack, albumart)
+    if opts.mode == "off" then
+        return ""
+    elseif opts.mode == "force" then
+        return get_visualizer(opts.name)
+
+
+
+    end
+
+
+
+    msg.log("error", "invalid mode")
+    return ""
+end
+
+
+
+local function visualizer_hook()
+    local count = mp.get_property_number("track-list/count", -1)
+    local atrack = 0
+    local vtrack = 0
+    local albumart = 0
+    if count <= 0 then
+        return
+    end
+    for tr = 0,count-1 do
+        if mp.get_property("track-list/" .. tr .. "/type") == "audio" then
+            atrack = atrack + 1
+        else
+            if mp.get_property("track-list/" .. tr .. "/type") == "video" then
+                if mp.get_property("track-list/" .. tr .. "/albumart") == "yes" then
+                    albumart = albumart + 1
+                else
+                    vtrack = vtrack + 1
+                end
+            end
+        end
+    end
+
+
+
+    mp.set_property("options/lavfi-complex", select_visualizer(atrack, vtrack, albumart))
+end
+
+
+
+mp.add_hook("on_preloaded", 50, visualizer_hook)
+
+
+
+local function cycle_visualizer()
+    local i, index = 1
+    for i = 1, #visualizer_name_list do
+        if (visualizer_name_list[i] == opts.name) then
+            index = i + 1
+            if index > #visualizer_name_list then
+                index = 1
+            end
+            break
+        end
+    end
+    opts.name = visualizer_name_list[index]
+    visualizer_hook()
+end
+
+
+
+mp.add_key_binding(cycle_key, "cycle-visualizer", cycle_visualizer)

visualizer.lua

@@ -7,7 +7,7 @@ local opts = {
     -- novideo          enable visualization when no video
     -- force            always enable visualization
 
-    name = "showcqt",
+    name = "off",
     -- off
     -- showcqt
     -- avectorscope