From: ddennedy <ddennedy@d19143bc-622f-0410-bfdd-b5b2a6649095>
Date: Sun, 29 Aug 2004 22:44:48 +0000 (+0000)
Subject: bugfix in waveform method
X-Git-Url: http://research.m1stereo.tv/gitweb?a=commitdiff_plain;h=a580a839a05757f17185ef78b849f3e53dbd0ccc;p=melted

bugfix in waveform method


git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@398 d19143bc-622f-0410-bfdd-b5b2a6649095
---

diff --git a/src/framework/mlt_frame.c b/src/framework/mlt_frame.c
index 204eaae..46c2aae 100644
--- a/src/framework/mlt_frame.c
+++ b/src/framework/mlt_frame.c
@@ -371,7 +371,7 @@ unsigned char *mlt_frame_get_waveform( mlt_frame this, double fps, int w, int h
 		for ( j = 0; j < channels; j++ )
 		{
 			/* the height of a "bar" is the ratio of the sample multiplied by the vertical resolution */
-			int pcm_scaled = ( int )( ( double )( *pcm ) / 32767 * vertical_resolution );
+			int pcm_scaled = ( int )( ( double )( *pcm ) / 32768 * vertical_resolution / 2 );
 			int height = pcm_scaled < 0 ? -pcm_scaled : pcm_scaled;
 			int offset = j * samples * vertical_resolution;
 			int displacement = pcm_scaled < 0 ? ( vertical_resolution / 2 ) : ( vertical_resolution / 2 - pcm_scaled );
@@ -383,6 +383,7 @@ unsigned char *mlt_frame_get_waveform( mlt_frame this, double fps, int w, int h
 			pcm++;
 		}
 	}
+
 	return bitmap;
 }