Files
oak-editor/app/render/backend/renderworker.cpp
T
itsmattkc 6db591e89f footage: merge video and image streams and improve image sequence import process
Image streams were initially separated from video streams, but they're now
joined with a parameter defining if they're a still image, image sequence,
or regular video. The image sequence import process has also improved so
that if images from the same sequence are imported too, they'll either be
ignored or the user won't be asked again for those if they should be an
image sequence (fixes #1193). Also shifts decoder "probe" process to return
an item, useful if the decoder returns a non-footage item.
2020-09-26 19:45:07 +10:00

467 lines
15 KiB
C++

/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#include "renderworker.h"
#include <QDir>
#include <QThread>
#include <QTimer>
#include "audio/audiovisualwaveform.h"
#include "common/functiontimer.h"
#include "config/config.h"
#include "node/block/clip/clip.h"
#include "task/conform/conform.h"
OLIVE_NAMESPACE_ENTER
// FIXME: Hardcoded value. It seems to work fine, but is there a possibility we should make
// this a dynamic value somehow or a configurable value?
const int RenderWorker::kMaxDecoderLife = 6000;
RenderWorker::RenderWorker(RenderBackend* parent) :
parent_(parent),
video_force_download_resolution_(false),
available_(true),
generate_audio_previews_(false),
render_mode_(RenderMode::kOnline)
{
cleanup_timer_ = new QTimer();
cleanup_timer_->setInterval(kMaxDecoderLife);
connect(cleanup_timer_, &QTimer::timeout, this, &RenderWorker::ClearOldDecoders, Qt::DirectConnection);
cleanup_timer_->moveToThread(qApp->thread());
QMetaObject::invokeMethod(cleanup_timer_, "start", Qt::QueuedConnection);
}
RenderWorker::~RenderWorker()
{
QMetaObject::invokeMethod(cleanup_timer_, "stop", Qt::QueuedConnection);
cleanup_timer_->deleteLater();
}
void RenderWorker::Hash(RenderTicketPtr ticket, ViewerOutput *viewer, const QVector<rational> &times)
{
ticket_ = ticket;
QVector<QByteArray> hashes(times.size());
for (int i=0;i<hashes.size();i++) {
hashes[i] = HashNode(viewer->texture_input()->get_connected_node(),
video_params_,
times.at(i));
}
ticket->Finish(QVariant::fromValue(hashes));
emit FinishedJob();
}
QByteArray RenderWorker::HashNode(const Node *n, const VideoParams &params, const rational &time)
{
QCryptographicHash hasher(QCryptographicHash::Sha1);
// Embed video parameters into this hash
hasher.addData(reinterpret_cast<const char*>(&params.effective_width()), sizeof(int));
hasher.addData(reinterpret_cast<const char*>(&params.effective_height()), sizeof(int));
hasher.addData(reinterpret_cast<const char*>(&params.format()), sizeof(PixelFormat::Format));
if (n) {
n->Hash(hasher, time);
}
return hasher.result();
}
void RenderWorker::ClearOldDecoders()
{
QMutexLocker locker(&decoder_lock_);
QHash<Stream*, qint64>::iterator i = decoder_age_.begin();
while (i != decoder_age_.end()) {
if (i.value() < QDateTime::currentMSecsSinceEpoch() - kMaxDecoderLife) {
// This decoder is old, remove it
decoder_cache_.remove(i.key());
i = decoder_age_.erase(i);
} else {
i++;
}
}
}
void RenderWorker::RenderFrame(RenderTicketPtr ticket, ViewerOutput* viewer, const rational &time)
{
ticket_ = ticket;
NodeValueTable table = ProcessInput(viewer->texture_input(),
TimeRange(time, time + video_params_.time_base()));
QVariant texture = table.Get(NodeParam::kTexture);
PixelFormat::Format output_format;
if (!texture.isNull() && TextureHasAlpha(texture)) {
output_format = PixelFormat::GetFormatWithAlphaChannel(video_params_.format());
} else {
output_format = PixelFormat::GetFormatWithoutAlphaChannel(video_params_.format());
}
FramePtr frame = Frame::Create();
frame->set_timestamp(time);
if (video_force_download_resolution_ || texture.isNull()) {
// If we're setting the resolution ourselves or we're zeroing it out, allocate the frame now
frame->set_video_params(VideoParams(video_params_.width(),
video_params_.height(),
video_params_.time_base(),
output_format,
video_params_.pixel_aspect_ratio(),
video_params_.interlacing(),
video_params_.divider()));
frame->allocate();
}
if (texture.isNull()) {
// Blank frame out
memset(frame->data(), 0, frame->allocated_size());
} else {
// Dump texture contents to frame
TextureToFrame(texture, frame, video_download_matrix_);
}
ticket->Finish(QVariant::fromValue(frame));
emit FinishedJob();
}
void RenderWorker::RenderAudio(RenderTicketPtr ticket, ViewerOutput* viewer, const TimeRange &range)
{
ticket_ = ticket;
NodeValueTable table = ProcessInput(viewer->samples_input(), range);
QVariant samples = table.Get(NodeParam::kSamples);
ticket->Finish(samples);
emit FinishedJob();
}
NodeValueTable RenderWorker::GenerateBlockTable(const TrackOutput *track, const TimeRange &range)
{
if (track->track_type() == Timeline::kTrackTypeAudio) {
QList<Block*> active_blocks = track->BlocksAtTimeRange(range);
// All these blocks will need to output to a buffer so we create one here
SampleBufferPtr block_range_buffer = SampleBuffer::CreateAllocated(audio_params_,
audio_params_.time_to_samples(range.length()));
block_range_buffer->fill(0);
NodeValueTable merged_table;
// Loop through active blocks retrieving their audio
foreach (Block* b, active_blocks) {
TimeRange range_for_block(qMax(b->in(), range.in()),
qMin(b->out(), range.out()));
int destination_offset = audio_params_.time_to_samples(range_for_block.in() - range.in());
int max_dest_sz = audio_params_.time_to_samples(range_for_block.length());
// Destination buffer
NodeValueTable table = GenerateTable(b, range_for_block);
SampleBufferPtr samples_from_this_block = table.Take(NodeParam::kSamples).value<SampleBufferPtr>();
if (!samples_from_this_block) {
// If we retrieved no samples from this block, do nothing
continue;
}
// FIXME: Doesn't handle reversing
if (b->speed_input()->is_keyframing() || b->speed_input()->is_connected()) {
// FIXME: We'll need to calculate the speed hoo boy
} else {
double speed_value = b->speed_input()->get_standard_value().toDouble();
if (qIsNull(speed_value)) {
// Just silence, don't think there's any other practical application of 0 speed audio
samples_from_this_block->fill(0);
} else if (!qFuzzyCompare(speed_value, 1.0)) {
// Multiply time
samples_from_this_block->speed(speed_value);
}
}
int copy_length = qMin(max_dest_sz, samples_from_this_block->sample_count());
// Copy samples into destination buffer
block_range_buffer->set(samples_from_this_block->const_data(), destination_offset, copy_length);
NodeValueTable::Merge({merged_table, table});
}
if (generate_audio_previews_) {
// Find original track object
TrackOutput* original_track = nullptr;
// Have to do a manual loop since our track is const and QHash won't take it
QHash<Node*, Node*>::const_iterator i;
for (i=copy_map_->constBegin(); i!=copy_map_->constEnd(); i++) {
if (i.value() == track) {
original_track = static_cast<TrackOutput*>(i.key());
break;
}
}
if (original_track) {
// Generate a visual waveform and send it back to the main thread
AudioVisualWaveform visual_waveform;
visual_waveform.set_channel_count(audio_params_.channel_count());
visual_waveform.OverwriteSamples(block_range_buffer, audio_params_.sample_rate());
emit WaveformGenerated(ticket_, original_track, visual_waveform, range);
}
}
merged_table.Push(NodeParam::kSamples, QVariant::fromValue(block_range_buffer), track);
return merged_table;
} else {
return NodeTraverser::GenerateBlockTable(track, range);
}
}
QVariant RenderWorker::ProcessSamples(const Node *node, const TimeRange &range, const SampleJob& job)
{
if (!job.samples() || !job.samples()->is_allocated()) {
return QVariant();
}
SampleBufferPtr output_buffer = SampleBuffer::CreateAllocated(job.samples()->audio_params(), job.samples()->sample_count());
NodeValueDatabase value_db;
for (int i=0;i<job.samples()->sample_count();i++) {
// Calculate the exact rational time at this sample
double sample_to_second = static_cast<double>(i) / static_cast<double>(audio_params_.sample_rate());
rational this_sample_time = rational::fromDouble(range.in().toDouble() + sample_to_second);
// Update all non-sample and non-footage inputs
NodeValueMap::const_iterator j;
for (j=job.GetValues().constBegin(); j!=job.GetValues().constEnd(); j++) {
NodeValueTable value;
NodeInput* corresponding_input = node->GetInputWithID(j.key());
if (corresponding_input) {
value = ProcessInput(corresponding_input, TimeRange(this_sample_time, this_sample_time));
} else {
value.Push(j.value());
}
value_db.Insert(j.key(), value);
}
AddGlobalsToDatabase(value_db, TimeRange(this_sample_time, this_sample_time));
node->ProcessSamples(value_db,
job.samples(),
output_buffer,
i);
}
return QVariant::fromValue(output_buffer);
}
QVariant RenderWorker::ProcessFrameGeneration(const Node* node, const GenerateJob &job)
{
FramePtr frame = Frame::Create();
PixelFormat::Format output_fmt;
if (job.GetAlphaChannelRequired()) {
output_fmt = PixelFormat::GetFormatWithAlphaChannel(video_params_.format());
} else {
output_fmt = PixelFormat::GetFormatWithoutAlphaChannel(video_params_.format());
}
frame->set_video_params(VideoParams(video_params_.width(),
video_params_.height(),
video_params_.time_base(),
output_fmt,
video_params_.pixel_aspect_ratio(),
video_params_.interlacing(),
video_params_.divider()));
frame->allocate();
node->GenerateFrame(frame, job);
return CachedFrameToTexture(frame);
}
QVariant RenderWorker::GetCachedFrame(const Node* node, const rational& time)
{
if (render_mode_ == RenderMode::kOffline
&& !cache_path_.isEmpty()
&& node->id() == QStringLiteral("org.olivevideoeditor.Olive.videoinput")) {
QByteArray hash = HashNode(node, video_params(), time);
FramePtr f = FrameHashCache::LoadCacheFrame(cache_path_, hash);
if (f) {
// The cached frame won't load with the correct divider by default, so we enforce it here
f->set_video_params(VideoParams(f->width() * video_params_.divider(),
f->height() * video_params_.divider(),
f->video_params().time_base(),
f->video_params().format(),
f->video_params().pixel_aspect_ratio(),
f->video_params().interlacing(),
video_params_.divider()));
return CachedFrameToTexture(f);
}
}
return QVariant();
}
DecoderPtr RenderWorker::ResolveDecoderFromInput(StreamPtr stream)
{
// Access a map of Node inputs and decoder instances and retrieve a frame!
QMutexLocker locker(&decoder_lock_);
DecoderPtr decoder = decoder_cache_.value(stream.get());
if (!decoder && stream) {
// Create a new Decoder here
decoder = Decoder::CreateFromID(stream->footage()->decoder());
decoder->set_stream(stream);
if (decoder->Open()) {
decoder_cache_.insert(stream.get(), decoder);
} else {
decoder = nullptr;
qWarning() << "Failed to open decoder for" << stream->footage()->filename()
<< "::" << stream->index();
}
}
decoder_age_.insert(stream.get(), QDateTime::currentMSecsSinceEpoch());
return decoder;
}
QVariant RenderWorker::ProcessVideoFootage(StreamPtr stream, const rational &input_time)
{
VideoStreamPtr video_stream = std::static_pointer_cast<VideoStream>(stream);
rational time_match = (video_stream->video_type() == VideoStream::kVideoTypeStill) ? 0 : input_time;
QString colorspace_match = video_stream->get_colorspace_match_string();
QVariant value;
bool found_cache = false;
if (still_image_cache_.contains(stream.get())) {
const CachedStill& cs = still_image_cache_[stream.get()];
if (cs.colorspace == colorspace_match
&& cs.alpha_is_associated == video_stream->premultiplied_alpha()
&& cs.divider == video_params_.divider()
&& cs.time == time_match) {
value = cs.texture;
found_cache = true;
} else {
still_image_cache_.remove(stream.get());
}
}
if (!found_cache) {
DecoderPtr decoder = ResolveDecoderFromInput(stream);
if (decoder) {
FramePtr frame = decoder->RetrieveVideo(input_time,
video_params().divider());
if (frame) {
// Return a texture from the derived class
value = FootageFrameToTexture(stream, frame);
if (!value.isNull()) {
// Put this into the image cache instead
still_image_cache_.insert(stream.get(), {value,
colorspace_match,
video_stream->premultiplied_alpha(),
video_params_.divider(),
time_match});
}
}
}
}
return value;
}
QVariant RenderWorker::ProcessAudioFootage(StreamPtr stream, const TimeRange &input_time)
{
QVariant value;
DecoderPtr decoder = ResolveDecoderFromInput(stream);
if (decoder) {
// See if we have a conformed version of this audio
if (!decoder->HasConformedVersion(audio_params())) {
// If not, the audio needs to be conformed
// For online rendering/export, it's a waste of time to render the audio until we have
// all we need, so we try to handle the conform ourselves
AudioStreamPtr as = std::static_pointer_cast<AudioStream>(stream);
// Check if any other threads are conforming this audio
if (as->try_start_conforming(audio_params())) {
// If not, conform it ourselves
decoder->ConformAudio(&IsCancelled(), audio_params());
} else {
// If another thread is conforming already, hackily try to wait until it's done.
do {
QThread::msleep(1000);
} while (!as->has_conformed_version(audio_params()) && !IsCancelled());
}
}
if (decoder->HasConformedVersion(audio_params())) {
SampleBufferPtr frame = decoder->RetrieveAudio(input_time.in(), input_time.length(),
audio_params());
if (frame) {
value = QVariant::fromValue(frame);
}
}
}
return value;
}
OLIVE_NAMESPACE_EXIT