From 0e447ca05ff0c0fe91ec9a9a9091940680f967ba Mon Sep 17 00:00:00 2001
From: Tom Barrett <tom@tombarrett.xyz>
Date: Wed, 11 Mar 2020 07:15:16 -0500
Subject: waveform is now accurately shown

---
 src/audio.rs | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

(limited to 'src/audio.rs')

diff --git a/src/audio.rs b/src/audio.rs
index e51504b..ef92408 100644
--- a/src/audio.rs
+++ b/src/audio.rs
@@ -14,7 +14,7 @@ pub fn init() -> (StreamingSource, Vec<i16>) {
     let sample_channels =
         source.ident_hdr.audio_channels as f32 * source.ident_hdr.audio_sample_rate as f32;
 
-    let mut toms_samples = Vec::new();
+    let mut waveform = Vec::new();
 
     let mut _track_length = 0.0;
 
@@ -23,16 +23,23 @@ pub fn init() -> (StreamingSource, Vec<i16>) {
             .into_iter()
             .map(|s| (s as f32 * constants::VOLUME) as i16)
             .collect();
-        _track_length += samples.len() as f32 / sample_channels;
+
         let audio_buffer = audio_context
             .new_buffer::<Stereo<i16>, _>(&samples, sample_rate)
             .unwrap();
         stream.queue_buffer(audio_buffer).unwrap();
 
-        if samples.len() > 1 {
-            toms_samples.push(samples[0])
-        }
+        _track_length += samples.len() as f32 / sample_channels;
+
+        samples = samples
+            .into_iter()
+            .enumerate()
+            .filter(|(i, _)| i % 2 == 0)
+            .map(|(_, s)| s)
+            .collect();
+
+        waveform.append(&mut samples);
     }
 
-    (stream, toms_samples)
+    (stream, waveform)
 }
-- 
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