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added #66

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itsmattkc
2018-07-10 12:12:58 +01:00
parent f11447e516
commit 31f4a5d0be
8 changed files with 68 additions and 25 deletions
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ui/viewerwidget.cpp
+18 -4
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@@ -13,6 +13,7 @@
#include <QDebug>
#include <QPainter>
#include <QtMath>
extern "C" {
#include <libavformat/avformat.h>
@@ -184,11 +185,24 @@ void ViewerWidget::paintGL() {
panel_timeline->ui->audio_monitor->sample_cache_offset = panel_timeline->playhead;
}
long sample_cache_playhead = panel_timeline->ui->audio_monitor->sample_cache_offset + panel_timeline->ui->audio_monitor->sample_cache.size();
int buffer_offset, buffer_offset_adjusted;
while ((buffer_offset = get_buffer_offset_from_frame(sample_cache_playhead)) < audio_ibuffer_read) {
buffer_offset_adjusted = (buffer_offset)%audio_ibuffer_size;
panel_timeline->ui->audio_monitor->sample_cache.append((qint16) ((audio_ibuffer[buffer_offset_adjusted+1] << 8) | audio_ibuffer[buffer_offset_adjusted]));
int next_buffer_offset, buffer_offset_adjusted, i;
int buffer_offset = get_buffer_offset_from_frame(sample_cache_playhead);
samples.resize(av_get_channel_layout_nb_channels(sequence->audio_layout));
samples.fill(0);
while (buffer_offset < audio_ibuffer_read) {
sample_cache_playhead++;
next_buffer_offset = qMin(get_buffer_offset_from_frame(sample_cache_playhead), audio_ibuffer_read);
while (buffer_offset < next_buffer_offset) {
for (i=0;i<samples.size();i++) {
buffer_offset_adjusted = buffer_offset%audio_ibuffer_size;
samples[i] = qMax(qAbs((qint16) (((audio_ibuffer[buffer_offset_adjusted+1] & 0xFF) << 8) | (audio_ibuffer[buffer_offset_adjusted] & 0xFF))), samples[i]);
buffer_offset += 2;
}
}
for (i=0;i<samples.size();i++) {
panel_timeline->ui->audio_monitor->sample_cache.append(samples.at(i));
}
buffer_offset = next_buffer_offset;
}
memset(audio_ibuffer+adjusted_read_index, 0, actual_write);