311 lines
10 KiB
C++
311 lines
10 KiB
C++
#include "viewerwidget.h"
|
|
|
|
#include "panels/panels.h"
|
|
#include "panels/viewer.h"
|
|
#include "panels/timeline.h"
|
|
#include "panels/project.h"
|
|
#include "project/sequence.h"
|
|
#include "effects/effect.h"
|
|
#include "effects/transition.h"
|
|
#include "playback/playback.h"
|
|
#include "playback/audio.h"
|
|
#include "io/media.h"
|
|
#include "ui_timeline.h"
|
|
|
|
#include <QDebug>
|
|
#include <QPainter>
|
|
#include <QAudioOutput>
|
|
#include <QOpenGLShaderProgram>
|
|
#include <QtMath>
|
|
#include <QOpenGLFramebufferObject>
|
|
|
|
extern "C" {
|
|
#include <libavformat/avformat.h>
|
|
}
|
|
|
|
ViewerWidget::ViewerWidget(QWidget *parent) :
|
|
QOpenGLWidget(parent),
|
|
multithreaded(true),
|
|
force_audio(false),
|
|
enable_paint(true),
|
|
flip(false),
|
|
fbo(NULL)
|
|
{
|
|
QSurfaceFormat format;
|
|
format.setDepthBufferSize(24);
|
|
setFormat(format);
|
|
|
|
// error handler - retries after 250ms if we couldn't get the entire image
|
|
retry_timer.setInterval(250);
|
|
connect(&retry_timer, SIGNAL(timeout()), this, SLOT(retry()));
|
|
}
|
|
|
|
void ViewerWidget::deleteFunction() {
|
|
// destroy all textures as well
|
|
for (int i=0;i<sequence->clip_count();i++) {
|
|
Clip* c = sequence->get_clip(i);
|
|
if (c->texture != NULL) {
|
|
/* TODO NOTE: apparently "destroy()" is non-functional here because
|
|
* it requires a valid current context, and I guess it's no longer
|
|
* valid or current by the time this function is called. Not sure
|
|
* how to handle that just yet...
|
|
*/
|
|
|
|
c->texture->destroy();
|
|
c->texture = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ViewerWidget::retry() {
|
|
update();
|
|
}
|
|
|
|
void ViewerWidget::initializeGL() {
|
|
/*if (fbo != NULL) {
|
|
delete fbo;
|
|
fbo = NULL;
|
|
}*/
|
|
|
|
connect(context(), SIGNAL(aboutToBeDestroyed()), this, SLOT(deleteFunction()));
|
|
|
|
initializeOpenGLFunctions();
|
|
|
|
update();
|
|
}
|
|
|
|
//void ViewerWidget::resizeGL(int w, int h)
|
|
//{
|
|
//}
|
|
|
|
void ViewerWidget::paintEvent(QPaintEvent *e) {
|
|
if (enable_paint) QOpenGLWidget::paintEvent(e);
|
|
}
|
|
|
|
GLuint ViewerWidget::draw_clip(GLuint texture) {
|
|
glPushMatrix();
|
|
glLoadIdentity();
|
|
glOrtho(0, 1, 0, 1, -1, 1);
|
|
fbo->bind();
|
|
glBindTexture(GL_TEXTURE_2D, texture);
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0, 0); // top left
|
|
glVertex2f(0, 0); // top left
|
|
glTexCoord2f(1, 0); // top right
|
|
glVertex2f(1, 0); // top right
|
|
glTexCoord2f(1, 1); // bottom right
|
|
glVertex2f(1, 1); // bottom right
|
|
glTexCoord2f(0, 1); // bottom left
|
|
glVertex2f(0, 1); // bottom left
|
|
glEnd();
|
|
glBindTexture(GL_TEXTURE_2D, NULL);
|
|
fbo->release();
|
|
glPopMatrix();
|
|
return fbo->takeTexture();
|
|
}
|
|
|
|
void ViewerWidget::compose_sequence(QVector<Clip*>& nests, bool render_audio) {
|
|
Sequence* s = sequence;
|
|
long playhead = panel_timeline->playhead;
|
|
|
|
Clip* nest = NULL;
|
|
if (nests.size() > 0) {
|
|
nest = nests.last();
|
|
s = static_cast<Sequence*>(nest->media);
|
|
playhead += nest->clip_in - nest->timeline_in;
|
|
playhead = refactor_frame_number(playhead, sequence->frame_rate, s->frame_rate);
|
|
}
|
|
|
|
QVector<Clip*> current_clips;
|
|
|
|
for (int i=0;i<s->clip_count();i++) {
|
|
Clip* c = s->get_clip(i);
|
|
|
|
// if clip starts within one second and/or hasn't finished yet
|
|
if (c != NULL && !(nest != NULL && !same_sign(c->track, nest->track))) {
|
|
bool clip_is_active = false;
|
|
|
|
switch (c->media_type) {
|
|
case MEDIA_TYPE_FOOTAGE:
|
|
{
|
|
Media* m = static_cast<Media*>(c->media);
|
|
if (m->ready) {
|
|
if (m->get_stream_from_file_index(c->track < 0, c->media_stream) != NULL
|
|
&& is_clip_active(c, playhead)) {
|
|
// if thread is already working, we don't want to touch this,
|
|
// but we also don't want to hang the UI thread
|
|
if (!c->open) {
|
|
open_clip(c, multithreaded);
|
|
}
|
|
|
|
clip_is_active = true;
|
|
} else if (c->open) {
|
|
close_clip(c);
|
|
}
|
|
} else {
|
|
texture_failed = true;
|
|
}
|
|
}
|
|
break;
|
|
case MEDIA_TYPE_SEQUENCE:
|
|
clip_is_active = true;
|
|
break;
|
|
}
|
|
|
|
if (clip_is_active) {
|
|
bool added = false;
|
|
for (int j=0;j<current_clips.size();j++) {
|
|
if (current_clips.at(j)->track < c->track) {
|
|
current_clips.insert(j, c);
|
|
added = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!added) {
|
|
current_clips.append(c);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int i=0;i<current_clips.size();i++) {
|
|
Clip* c = current_clips.at(i);
|
|
|
|
if (c->media_type == MEDIA_TYPE_FOOTAGE && !c->finished_opening) {
|
|
qDebug() << "[WARNING] Tried to display clip" << i << "but it's closed";
|
|
texture_failed = true;
|
|
} else {
|
|
switch (c->media_type) {
|
|
case MEDIA_TYPE_FOOTAGE:
|
|
if (c->stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
// start preparing cache
|
|
get_clip_frame(c, playhead);
|
|
|
|
if (c->texture == NULL) {
|
|
qDebug() << "[WARNING] Texture hasn't been created yet";
|
|
texture_failed = true;
|
|
} else if (playhead >= c->timeline_in) {
|
|
MediaStream* ms = static_cast<Media*>(c->media)->get_stream_from_file_index(c->track < 0, c->media_stream);
|
|
|
|
int half_width = sequence->width/2;
|
|
int half_height = sequence->height/2;
|
|
if (flip) half_height = -half_height;
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glColor4f(1.0, 1.0, 1.0, 1.0);
|
|
glLoadIdentity();
|
|
glOrtho(-half_width, half_width, half_height, -half_height, -1, 1);
|
|
glViewport(0, 0, ms->video_width, ms->video_height);
|
|
|
|
// TEMP DEBUG CODE
|
|
if (fbo != NULL) delete fbo;
|
|
fbo = new QOpenGLFramebufferObject(ms->video_width, ms->video_height);
|
|
GLuint composite_texture = draw_clip(c->texture->textureId());
|
|
// END
|
|
|
|
GLTextureCoords coords;
|
|
coords.vertexTopLeftX = coords.vertexBottomLeftX = -ms->video_width/2;
|
|
coords.vertexTopLeftY = coords.vertexTopRightY = -ms->video_height/2;
|
|
coords.vertexTopRightX = coords.vertexBottomRightX = ms->video_width/2;
|
|
coords.vertexBottomLeftY = coords.vertexBottomRightY = ms->video_height/2;
|
|
coords.textureTopLeftY = coords.textureTopRightY = coords.textureTopLeftX = coords.textureBottomLeftX = 0;
|
|
coords.textureBottomLeftY = coords.textureBottomRightY = coords.textureTopRightX = coords.textureBottomRightX = 1.0;
|
|
|
|
// EFFECT CODE START
|
|
for (int j=0;j<c->effects.size();j++) {
|
|
if (c->effects.at(j)->enable_opengl && c->effects.at(j)->is_enabled()) {
|
|
c->effects.at(j)->process_gl(((double)(panel_timeline->playhead-c->timeline_in+c->clip_in)/(double)sequence->frame_rate), coords);
|
|
composite_texture = draw_clip(composite_texture);
|
|
}
|
|
}
|
|
|
|
if (c->opening_transition != NULL) {
|
|
int transition_progress = playhead - c->timeline_in;
|
|
if (transition_progress < c->opening_transition->length) {
|
|
c->opening_transition->process_transition((double)transition_progress/(double)c->opening_transition->length);
|
|
}
|
|
}
|
|
|
|
if (c->closing_transition != NULL) {
|
|
int transition_progress = c->closing_transition->length - (playhead - c->timeline_in - c->getLength() + c->closing_transition->length);
|
|
if (transition_progress < c->closing_transition->length) {
|
|
c->closing_transition->process_transition((double)transition_progress/(double)c->closing_transition->length);
|
|
}
|
|
}
|
|
// EFFECT CODE END
|
|
|
|
for (int j=0;j<c->effects.size();j++) {
|
|
if (c->effects.at(j)->enable_opengl && c->effects.at(j)->is_enabled()) {
|
|
c->effects.at(j)->clean_gl();
|
|
}
|
|
}
|
|
|
|
glViewport(0, 0, width(), height());
|
|
|
|
glBindTexture(GL_TEXTURE_2D, composite_texture);
|
|
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(coords.textureTopLeftX, coords.textureTopLeftY); // top left
|
|
glVertex2f(coords.vertexTopLeftX, coords.vertexTopLeftY); // top left
|
|
glTexCoord2f(coords.textureTopRightX, coords.textureTopRightY); // top right
|
|
glVertex2f(coords.vertexTopRightX, coords.vertexTopRightY); // top right
|
|
glTexCoord2f(coords.textureBottomRightX, coords.textureBottomRightY); // bottom right
|
|
glVertex2f(coords.vertexBottomRightX, coords.vertexBottomRightY); // bottom right
|
|
glTexCoord2f(coords.textureBottomLeftX, coords.textureBottomLeftY); // bottom left
|
|
glVertex2f(coords.vertexBottomLeftX, coords.vertexBottomLeftY); // bottom left
|
|
glEnd();
|
|
|
|
glDeleteTextures(1, &composite_texture);
|
|
}
|
|
} else if (render_audio &&
|
|
c->stream->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
|
|
c->lock.tryLock()) {
|
|
// clip is not caching, start caching audio
|
|
cache_clip(c, playhead, false, false, c->audio_reset, nest);
|
|
c->lock.unlock();
|
|
}
|
|
break;
|
|
case MEDIA_TYPE_SEQUENCE:
|
|
nests.append(c);
|
|
compose_sequence(nests, render_audio);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ViewerWidget::paintGL() {
|
|
glClearColor(0, 0, 0, 1);
|
|
glMatrixMode(GL_PROJECTION);
|
|
glEnable(GL_TEXTURE_2D);
|
|
glEnable(GL_BLEND);
|
|
|
|
bool loop = true;
|
|
while (loop) {
|
|
loop = false;
|
|
texture_failed = false;
|
|
|
|
if (multithreaded) retry_timer.stop();
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
|
|
// compose video preview
|
|
QVector<Clip*> nests;
|
|
compose_sequence(nests, (panel_timeline->playing || force_audio));
|
|
|
|
if (texture_failed) {
|
|
if (multithreaded) {
|
|
retry_timer.start();
|
|
} else {
|
|
qDebug() << "[INFO] Texture failed - looping";
|
|
loop = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
glDisable(GL_BLEND);
|
|
glDisable(GL_TEXTURE_2D);
|
|
}
|