57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
#include "media.h"
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#include <QDebug>
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#include <QtMath>
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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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Media::Media() : ready(false), preview_gen(NULL) {
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ready_lock.lock();
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}
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Media::~Media() {
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reset();
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}
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void Media::reset() {
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if (preview_gen != NULL) {
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preview_gen->cancel();
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preview_gen->wait();
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}
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for (int i=0;i<video_tracks.size();i++) {
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delete video_tracks.at(i);
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}
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for (int i=0;i<audio_tracks.size();i++) {
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delete audio_tracks.at(i);
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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 Media::get_length_in_frames(double frame_rate) {
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return qFloor(((double) length / (double) AV_TIME_BASE) * frame_rate);
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}
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MediaStream* Media::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.at(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.at(i);
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}
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}
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}
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return NULL;
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}
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