From b6b45d12702f18f041acf65b0d5e34714835ecb4 Mon Sep 17 00:00:00 2001
From: tassaron
Date: Sun, 30 Jul 2017 13:04:02 -0400
Subject: added Spectrum component with many options

tweaked Waveform, added some ffmpeg logging, made generic widget functions
---
 src/components/waveform.py | 48 +++++++++++++++++++++++++++++++---------------
 1 file changed, 33 insertions(+), 15 deletions(-)

(limited to 'src/components/waveform.py')

diff --git a/src/components/waveform.py b/src/components/waveform.py
index b4b19e9..6c5133d 100644
--- a/src/components/waveform.py
+++ b/src/components/waveform.py
@@ -8,7 +8,9 @@ import subprocess
 from component import Component
 from toolkit.frame import BlankFrame, scale
 from toolkit import checkOutput, rgbFromString, pickColor
-from toolkit.ffmpeg import openPipe, closePipe, getAudioDuration, FfmpegVideo
+from toolkit.ffmpeg import (
+    openPipe, closePipe, getAudioDuration, FfmpegVideo, exampleSound
+)
 
 
 class Component(Component):
@@ -112,6 +114,8 @@ class Component(Component):
             if not duration:
                 return
             startPt = duration / 3
+            if startPt + 3 > duration:
+                startPt += startPt - 3
 
         command = [
             self.core.FFMPEG_BIN,
@@ -154,29 +158,43 @@ class Component(Component):
         hexcolor = QColor(*self.color).name()
         opacity = "{0:.1f}".format(self.opacity / 100)
         genericPreview = self.settings.value("pref_genericPreview")
+        if self.mode < 3:
+            filter_ = 'showwaves=r=%s:s=%sx%s:mode=%s:colors=%s@%s:scale=%s' % (
+                self.settings.value("outputFrameRate"),
+                self.settings.value("outputWidth"),
+                self.settings.value("outputHeight"),
+                self.page.comboBox_mode.currentText().lower()
+                if self.mode != 3 else 'p2p',
+                hexcolor, opacity, amplitude,
+            )
+        elif self.mode > 2:
+            filter_ = (
+                'showfreqs=s=%sx%s:mode=%s:colors=%s@%s'
+                ':ascale=%s:fscale=%s' % (
+                    self.settings.value("outputWidth"),
+                    self.settings.value("outputHeight"),
+                    'line' if self.mode == 4 else 'bar',
+                    hexcolor, opacity, amplitude,
+                    'log' if self.mono else 'lin'
+                )
+            )
 
         return [
             '-filter_complex',
             '%s%s%s'
-            'showwaves=r=30:s=%sx%s:mode=%s:colors=%s@%s:scale=%s%s%s [v1]; '
-            '[v1] scale=%s:%s%s,setpts=2.0*PTS [v]' % (
-                'aevalsrc=sin(1*2*PI*t)*sin(880*2*PI*t),'
-                if preview and genericPreview else '[0:a] ',
-                'compand=.3|.3:1|1:-90/-60|-60/-40|-40/-30|-20/-20:6:0:-90:0.2'
-                ',' if self.compress and not preview else (
-                    'compand=gain=5,' if self.compress else ''
-                ),
-                'aformat=channel_layouts=mono,' if self.mono else '',
-                self.settings.value("outputWidth"),
-                self.settings.value("outputHeight"),
-                str(self.page.comboBox_mode.currentText()).lower(),
-                hexcolor, opacity, amplitude,
+            '%s%s%s [v1]; '
+            '[v1] scale=%s:%s%s [v]' % (
+                exampleSound() if preview and genericPreview else '[0:a] ',
+                'compand=gain=4,' if self.compress else '',
+                'aformat=channel_layouts=mono,'
+                if self.mono and self.mode < 3 else '',
+                filter_,
                 ', drawbox=x=(iw-w)/2:y=(ih-h)/2:w=iw:h=4:color=%s@%s' % (
                     hexcolor, opacity
                 ) if self.mode < 2 else '',
                 ', hflip' if self.mirror else'',
                 w, h,
-                ', trim=duration=%s' % "{0:.3f}".format(startPt + 1)
+                ', trim=duration=%s' % "{0:.3f}".format(startPt + 3)
                 if preview else '',
             ),
             '-map', '[v]',
-- 
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