#include "export.h"
#include "flags.h"
#include "frame_on_disk.h"
+#include "player.h"
#include "shared/ffmpeg_raii.h"
#include "shared/timebase.h"
#include <QMessageBox>
#include <QProgressDialog>
+#include <future>
#include <vector>
#include <unistd.h>
frames_written += buffered_jpegs.size();
progress.setValue(frames_written);
}
+
+void export_interpolated_clip(const string &filename, const vector<Clip> &clips)
+{
+ AVFormatContext *avctx = nullptr;
+ avformat_alloc_output_context2(&avctx, NULL, NULL, filename.c_str());
+ if (avctx == nullptr) {
+ QMessageBox msgbox;
+ msgbox.setText("Could not allocate FFmpeg context");
+ msgbox.exec();
+ return;
+ }
+ AVFormatContextWithCloser closer(avctx);
+
+ int ret = avio_open(&avctx->pb, filename.c_str(), AVIO_FLAG_WRITE);
+ if (ret < 0) {
+ QMessageBox msgbox;
+ msgbox.setText(QString::fromStdString("Could not open output file '" + filename + "'"));
+ msgbox.exec();
+ return;
+ }
+
+ QProgressDialog progress(QString::fromStdString("Exporting to " + filename + "..."), "Abort", 0, 1);
+ progress.setWindowTitle("Futatabi");
+ progress.setWindowModality(Qt::WindowModal);
+ progress.setMinimumDuration(1000);
+ progress.setMaximum(100000);
+ progress.setValue(0);
+
+ double total_length = compute_time_left(clips, {{0, 0.0}});
+
+ promise<void> done_promise;
+ future<void> done = done_promise.get_future();
+ std::atomic<double> current_value{0.0};
+ size_t clip_idx = 0;
+
+ Player player(/*destination=*/nullptr, Player::FILE_STREAM_OUTPUT, closer.release());
+ player.set_done_callback([&done_promise, &clip_idx, &clips] {
+ if (clip_idx >= clips.size()) {
+ done_promise.set_value();
+ }
+ });
+ player.set_next_clip_callback([&clip_idx, &clips]() -> pair<Clip, int> {
+ if (++clip_idx >= clips.size()) {
+ return make_pair(Clip(), -1);
+ } else {
+ return make_pair(clips[clip_idx], clip_idx);
+ }
+ });
+ player.set_progress_callback([¤t_value, &clips, total_length] (const std::map<size_t, double> &player_progress) {
+ current_value = 1.0 - compute_time_left(clips, player_progress) / total_length;
+ });
+ player.play_clip(clips[0], clip_idx, clips[0].stream_idx);
+ while (done.wait_for(std::chrono::milliseconds(100)) != future_status::ready && !progress.wasCanceled()) {
+ progress.setValue(lrint(100000.0 * current_value));
+ }
+ if (progress.wasCanceled()) {
+ unlink(filename.c_str());
+ // Destroying player on scope exit will abort the render job.
+ }
+}