Audio alignment libraries moved to src/lib/audio/

[kdenlive] / testingArea / audioEnvelope.cpp

diff --git a/testingArea/audioEnvelope.cpp b/testingArea/audioEnvelope.cpp
deleted file mode 100644 (file)
index 5f1bbc5..0000000
--- a/testingArea/audioEnvelope.cpp
+++ /dev/null
@@ -1,181 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2012 by Simon Andreas Eugster (simon.eu@gmail.com)      *
- *   This file is part of kdenlive. See www.kdenlive.org.                  *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- ***************************************************************************/
-
-#include "audioEnvelope.h"
-
-#include "audioStreamInfo.h"
-#include <QImage>
-#include <QTime>
-#include <cmath>
-#include <iostream>
-
-AudioEnvelope::AudioEnvelope(Mlt::Producer *producer) :
-    m_envelope(NULL),
-    m_producer(producer),
-    m_envelopeSize(producer->get_length()),
-    m_envelopeStdDevCalculated(false),
-    m_envelopeIsNormalized(false)
-{
-    m_info = new AudioInfo(m_producer);
-}
-
-AudioEnvelope::~AudioEnvelope()
-{
-    if (m_envelope != NULL) {
-        delete m_envelope;
-    }
-    delete m_info;
-}
-
-
-
-const int64_t *AudioEnvelope::envelope()
-{
-    if (m_envelope == NULL) {
-        loadEnvelope();
-    }
-    return m_envelope;
-}
-int AudioEnvelope::envelopeSize() const
-{
-    return m_envelopeSize;
-}
-
-
-
-
-void AudioEnvelope::loadEnvelope()
-{
-    Q_ASSERT(m_envelope == NULL);
-
-    std::cout << "Loading envelope ..." << std::endl;
-
-    int samplingRate = m_info->info(0)->samplingRate();
-    mlt_audio_format format_s16 = mlt_audio_s16;
-    int channels = 1;
-
-    Mlt::Frame *frame;
-    int64_t position;
-    int samples;
-
-    m_envelope = new int64_t[m_envelopeSize];
-    m_envelopeMax = 0;
-    m_envelopeMean = 0;
-
-    QTime t;
-    t.start();
-    for (int i = 0; i < m_envelopeSize; i++) {
-
-        frame = m_producer->get_frame(i);
-        position = mlt_frame_get_position(frame->get_frame());
-        samples = mlt_sample_calculator(m_producer->get_fps(), samplingRate, position);
-
-        int16_t *data = static_cast<int16_t*>(frame->get_audio(format_s16, samplingRate, channels, samples));
-
-        int64_t sum = 0;
-        for (int k = 0; k < samples; k++) {
-            sum += fabs(data[k]);
-        }
-        m_envelope[i] = sum;
-
-        m_envelopeMean += sum;
-        if (sum > m_envelopeMax) {
-            m_envelopeMax = sum;
-        }
-    }
-    m_envelopeMean /= m_envelopeSize;
-    std::cout << "Calculating the envelope (" << m_envelopeSize << " frames) took "
-              << t.elapsed() << " ms." << std::endl;
-}
-
-int64_t AudioEnvelope::loadStdDev()
-{
-    if (m_envelopeStdDevCalculated) {
-        std::cout << "Standard deviation already calculated, not re-calculating." << std::endl;
-    } else {
-
-        if (m_envelope == NULL) {
-            loadEnvelope();
-        }
-
-        m_envelopeStdDev = 0;
-        for (int i = 0; i < m_envelopeSize; i++) {
-            m_envelopeStdDev += sqrt((m_envelope[i]-m_envelopeMean)*(m_envelope[i]-m_envelopeMean)/m_envelopeSize);
-        }
-        m_envelopeStdDevCalculated = true;
-
-    }
-    return m_envelopeStdDev;
-}
-
-void AudioEnvelope::normalizeEnvelope(bool clampTo0)
-{
-    if (m_envelope == NULL) {
-        loadEnvelope();
-    }
-
-    if (!m_envelopeIsNormalized) {
-
-        m_envelopeMax = 0;
-        int64_t newMean = 0;
-        for (int i = 0; i < m_envelopeSize; i++) {
-
-            m_envelope[i] -= m_envelopeMean;
-
-            if (clampTo0) {
-                if (m_envelope[i] < 0) { m_envelope[i] = 0; }
-            }
-
-            if (m_envelope[i] > m_envelopeMax) {
-                m_envelopeMax = m_envelope[i];
-            }
-
-            newMean += m_envelope[i];
-        }
-        m_envelopeMean = newMean / m_envelopeSize;
-
-        m_envelopeIsNormalized = true;
-    }
-
-}
-
-QImage AudioEnvelope::drawEnvelope()
-{
-    if (m_envelope == NULL) {
-        loadEnvelope();
-    }
-
-    QImage img(m_envelopeSize, 400, QImage::Format_ARGB32);
-    img.fill(qRgb(255,255,255));
-    double fy;
-    for (int x = 0; x < img.width(); x++) {
-        fy = m_envelope[x]/double(m_envelopeMax) * img.height();
-        for (int y = img.height()-1; y > img.height()-1-fy; y--) {
-            img.setPixel(x,y, qRgb(50, 50, 50));
-        }
-    }
-    return img;
-}
-
-void AudioEnvelope::dumpInfo() const
-{
-    if (m_envelope == NULL) {
-        std::cout << "Envelope not generated, no information available." << std::endl;
-    } else {
-        std::cout << "Envelope info" << std::endl
-                  << "* size = " << m_envelopeSize << std::endl
-                  << "* max = " << m_envelopeMax << std::endl
-                  << "* µ = " << m_envelopeMean << std::endl
-                     ;
-        if (m_envelopeStdDevCalculated) {
-            std::cout << "* s = " << m_envelopeStdDev << std::endl;
-        }
-    }
-}