75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
#include "footage.h"
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#include <QDebug>
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#include <QtMath>
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#include <QPainter>
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#include "io/previewgenerator.h"
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extern "C" {
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#include <libavformat/avformat.h>
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}
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#include "project/clip.h"
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Footage::Footage() :
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ready(false),
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preview_gen(nullptr),
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invalid(false),
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in(0),
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out(0),
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speed(1.0),
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alpha_is_premultiplied(false)
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{
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ready_lock.lock();
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}
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Footage::~Footage() {
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reset();
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}
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void Footage::reset() {
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if (preview_gen != nullptr) {
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preview_gen->cancel();
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preview_gen->wait();
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}
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video_tracks.clear();
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audio_tracks.clear();
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ready = false;
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}
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long Footage::get_length_in_frames(double frame_rate) {
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if (length >= 0) return qFloor(((double) length / (double) AV_TIME_BASE) * frame_rate / speed);
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return 0;
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}
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FootageStream* Footage::get_stream_from_file_index(bool video, int index) {
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if (video) {
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for (int i=0;i<video_tracks.size();i++) {
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if (video_tracks.at(i).file_index == index) {
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return &video_tracks[i];
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}
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}
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} else {
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for (int i=0;i<audio_tracks.size();i++) {
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if (audio_tracks.at(i).file_index == index) {
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return &audio_tracks[i];
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}
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}
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}
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return nullptr;
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}
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void FootageStream::make_square_thumb() {
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// generate square version for QListView?
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int square_size = qMax(video_preview.width(), video_preview.height());
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QPixmap pixmap(square_size, square_size);
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pixmap.fill(Qt::transparent);
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QPainter p(&pixmap);
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int diff = (video_preview.width() - video_preview.height())>>1;
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int sqx = (diff < 0) ? -diff : 0;
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int sqy = (diff > 0) ? diff : 0;
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p.drawImage(sqx, sqy, video_preview);
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p.end();
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video_preview_square = QIcon(pixmap);
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}
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