itsmattkc
81c1922911
This makes the node system somewhat more high-level with the intent of making working with them far more flexible and stable. By making the architecture more abstracted, it becomes far less rigid which should allow us to do even more with it and make it much less crash prone.
327 lines
8.1 KiB
C++
327 lines
8.1 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2020 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "viewer.h"
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#include "node/traverser.h"
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namespace olive {
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const QString ViewerOutput::kTextureInput = QStringLiteral("tex_in");
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const QString ViewerOutput::kSamplesInput = QStringLiteral("samples_in");
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const QString ViewerOutput::kTrackInputFormat = QStringLiteral("track_in_%1");
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ViewerOutput::ViewerOutput() :
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video_frame_cache_(this),
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audio_playback_cache_(this),
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operation_stack_(0)
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{
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AddInput(kTextureInput, NodeValue::kTexture, InputFlags(kInputFlagNotKeyframable));
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AddInput(kSamplesInput, NodeValue::kSamples, InputFlags(kInputFlagNotKeyframable));
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// Create TrackList instances
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track_lists_.resize(Track::kCount);
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for (int i=0;i<Track::kCount;i++) {
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// Create track input
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QString track_input_id = kTrackInputFormat.arg(i);
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AddInput(track_input_id, NodeValue::kNone, InputFlags(kInputFlagNotKeyframable | kInputFlagArray));
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IgnoreInvalidationsFrom(track_input_id);
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TrackList* list = new TrackList(this, static_cast<Track::Type>(i), track_input_id);
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track_lists_.replace(i, list);
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connect(list, &TrackList::TrackListChanged, this, &ViewerOutput::UpdateTrackCache);
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connect(list, &TrackList::LengthChanged, this, &ViewerOutput::VerifyLength);
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connect(list, &TrackList::TrackAdded, this, &ViewerOutput::TrackAdded);
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connect(list, &TrackList::TrackRemoved, this, &ViewerOutput::TrackRemoved);
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}
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// Create UUID for this node
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uuid_ = QUuid::createUuid();
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}
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ViewerOutput::~ViewerOutput()
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{
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DisconnectAll();
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}
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Node *ViewerOutput::copy() const
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{
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return new ViewerOutput();
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}
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QString ViewerOutput::Name() const
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{
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return tr("Viewer");
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}
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QString ViewerOutput::id() const
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{
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return QStringLiteral("org.olivevideoeditor.Olive.vieweroutput");
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}
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QVector<Node::CategoryID> ViewerOutput::Category() const
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{
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return {kCategoryOutput};
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}
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QString ViewerOutput::Description() const
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{
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return tr("Interface between a Viewer panel and the node system.");
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}
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void ViewerOutput::ShiftVideoCache(const rational &from, const rational &to)
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{
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video_frame_cache_.Shift(from, to);
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}
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void ViewerOutput::ShiftAudioCache(const rational &from, const rational &to)
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{
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audio_playback_cache_.Shift(from, to);
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foreach (Track* track, track_lists_.at(Track::kAudio)->GetTracks()) {
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track->waveform().Shift(from, to);
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}
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}
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void ViewerOutput::ShiftCache(const rational &from, const rational &to)
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{
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ShiftVideoCache(from, to);
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ShiftAudioCache(from, to);
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}
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void ViewerOutput::InvalidateCache(const TimeRange& range, const QString& from, int element)
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{
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Q_UNUSED(element)
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if (operation_stack_ == 0) {
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if (from == kTextureInput || from == kSamplesInput) {
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TimeRange invalidated_range(qMax(rational(), range.in()),
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qMin(GetLength(), range.out()));
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if (invalidated_range.in() != invalidated_range.out()) {
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if (from == kTextureInput) {
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video_frame_cache_.Invalidate(invalidated_range);
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} else {
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audio_playback_cache_.Invalidate(invalidated_range);
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}
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}
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}
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VerifyLength();
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}
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Node::InvalidateCache(range, from);
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}
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void ViewerOutput::set_video_params(const VideoParams &video)
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{
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bool size_changed = video_params_.width() != video.width() || video_params_.height() != video.height();
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bool timebase_changed = video_params_.time_base() != video.time_base();
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bool pixel_aspect_changed = video_params_.pixel_aspect_ratio() != video.pixel_aspect_ratio();
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bool interlacing_changed = video_params_.interlacing() != video.interlacing();
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video_params_ = video;
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if (size_changed) {
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emit SizeChanged(video_params_.width(), video_params_.height());
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}
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if (pixel_aspect_changed) {
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emit PixelAspectChanged(video_params_.pixel_aspect_ratio());
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}
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if (interlacing_changed) {
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emit InterlacingChanged(video_params_.interlacing());
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}
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if (timebase_changed) {
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video_frame_cache_.SetTimebase(video_params_.time_base());
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emit TimebaseChanged(video_params_.time_base());
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}
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emit VideoParamsChanged();
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video_frame_cache_.InvalidateAll();
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}
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void ViewerOutput::set_audio_params(const AudioParams &audio)
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{
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audio_params_ = audio;
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emit AudioParamsChanged();
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// This will automatically InvalidateAll
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audio_playback_cache_.SetParameters(audio_params());
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}
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rational ViewerOutput::GetLength()
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{
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return last_length_;
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}
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QVector<Track *> ViewerOutput::GetUnlockedTracks() const
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{
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QVector<Track*> tracks = GetTracks();
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for (int i=0;i<tracks.size();i++) {
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if (tracks.at(i)->IsLocked()) {
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tracks.removeAt(i);
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i--;
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}
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}
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return tracks;
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}
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void ViewerOutput::UpdateTrackCache()
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{
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track_cache_.clear();
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foreach (TrackList* list, track_lists_) {
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foreach (Track* track, list->GetTracks()) {
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track_cache_.append(track);
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}
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}
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}
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void ViewerOutput::VerifyLength()
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{
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if (operation_stack_ != 0) {
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return;
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}
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NodeTraverser traverser;
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rational video_length, audio_length, subtitle_length;
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{
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video_length = track_lists_.at(Track::kVideo)->GetTotalLength();
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if (video_length.isNull() && IsInputConnected(kTextureInput)) {
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NodeValueTable t = traverser.GenerateTable(GetConnectedOutput(kTextureInput), TimeRange(0, 0));
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video_length = t.Get(NodeValue::kRational, QStringLiteral("length")).value<rational>();
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}
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video_frame_cache_.SetLength(video_length);
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}
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{
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audio_length = track_lists_.at(Track::kAudio)->GetTotalLength();
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if (audio_length.isNull() && IsInputConnected(kSamplesInput)) {
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NodeValueTable t = traverser.GenerateTable(GetConnectedOutput(kSamplesInput), TimeRange(0, 0));
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audio_length = t.Get(NodeValue::kRational, QStringLiteral("length")).value<rational>();
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}
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audio_playback_cache_.SetLength(audio_length);
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}
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{
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subtitle_length = track_lists_.at(Track::kSubtitle)->GetTotalLength();
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}
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rational real_length = qMax(subtitle_length, qMax(video_length, audio_length));
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if (real_length != last_length_) {
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last_length_ = real_length;
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emit LengthChanged(last_length_);
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}
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}
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void ViewerOutput::Retranslate()
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{
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Node::Retranslate();
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SetInputName(kTextureInput, tr("Texture"));
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SetInputName(kSamplesInput, tr("Samples"));
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for (int i=0;i<Track::kCount;i++) {
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QString input_name;
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switch (static_cast<Track::Type>(i)) {
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case Track::kVideo:
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input_name = tr("Video Tracks");
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break;
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case Track::kAudio:
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input_name = tr("Audio Tracks");
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break;
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case Track::kSubtitle:
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input_name = tr("Subtitle Tracks");
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break;
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case Track::kNone:
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case Track::kCount:
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break;
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}
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if (!input_name.isEmpty()) {
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SetInputName(kTrackInputFormat.arg(i), input_name);
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}
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}
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}
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void ViewerOutput::BeginOperation()
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{
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operation_stack_++;
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Node::BeginOperation();
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}
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void ViewerOutput::EndOperation()
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{
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operation_stack_--;
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Node::EndOperation();
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}
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void ViewerOutput::InputConnectedEvent(const QString &input, int element, const NodeOutput &output)
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{
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if (input == kTextureInput) {
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emit TextureInputChanged();
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} else {
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foreach (TrackList* list, track_lists_) {
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if (list->track_input() == input) {
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list->TrackConnected(output.node(), element);
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break;
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}
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}
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}
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}
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void ViewerOutput::InputDisconnectedEvent(const QString &input, int element, const NodeOutput &output)
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{
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if (input == kTextureInput) {
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emit TextureInputChanged();
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} else {
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foreach (TrackList* list, track_lists_) {
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if (list->track_input() == input) {
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list->TrackDisconnected(output.node(), element);
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break;
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}
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}
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}
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}
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}
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