401 lines
13 KiB
C++
401 lines
13 KiB
C++
#include "playback.h"
|
|
|
|
#include "project/clip.h"
|
|
#include "project/sequence.h"
|
|
#include "io/media.h"
|
|
#include "playback/audio.h"
|
|
#include "playback/cacher.h"
|
|
#include "panels/panels.h"
|
|
#include "panels/timeline.h"
|
|
#include "panels/viewer.h"
|
|
#include "effects/effect.h"
|
|
#include "panels/effectcontrols.h"
|
|
|
|
extern "C" {
|
|
#include <libavformat/avformat.h>
|
|
#include <libavcodec/avcodec.h>
|
|
#include <libswscale/swscale.h>
|
|
#include <libswresample/swresample.h>
|
|
}
|
|
|
|
#include <QtMath>
|
|
#include <QObject>
|
|
#include <QOpenGLTexture>
|
|
#include <QDebug>
|
|
#include <QOpenGLPixelTransferOptions>
|
|
#include <QOpenGLFramebufferObject>
|
|
|
|
bool texture_failed = false;
|
|
bool rendering = false;
|
|
|
|
void open_clip(Clip* clip, bool multithreaded) {
|
|
switch (clip->media_type) {
|
|
case MEDIA_TYPE_FOOTAGE:
|
|
case MEDIA_TYPE_TONE:
|
|
clip->multithreaded = multithreaded;
|
|
if (multithreaded) {
|
|
if (clip->open_lock.tryLock()) {
|
|
// maybe keep cacher instance in memory while clip exists for performance?
|
|
clip->cacher = new Cacher(clip);
|
|
QObject::connect(clip->cacher, SIGNAL(finished()), clip->cacher, SLOT(deleteLater()));
|
|
clip->cacher->start((clip->track < 0) ? QThread::NormalPriority : QThread::TimeCriticalPriority);
|
|
}
|
|
} else {
|
|
clip->finished_opening = false;
|
|
clip->open = true;
|
|
|
|
open_clip_worker(clip);
|
|
}
|
|
break;
|
|
case MEDIA_TYPE_SEQUENCE:
|
|
case MEDIA_TYPE_SOLID:
|
|
clip->open = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void close_clip(Clip* clip) {
|
|
// destroy opengl texture in main thread
|
|
if (clip->texture != NULL) {
|
|
delete clip->texture;
|
|
clip->texture = NULL;
|
|
}
|
|
|
|
for (int i=0;i<clip->effects.size();i++) {
|
|
clip->effects.at(i)->close();
|
|
}
|
|
|
|
if (clip->fbo != NULL) {
|
|
delete clip->fbo[0];
|
|
delete clip->fbo[1];
|
|
delete [] clip->fbo;
|
|
clip->fbo = NULL;
|
|
}
|
|
|
|
switch (clip->media_type) {
|
|
case MEDIA_TYPE_FOOTAGE:
|
|
case MEDIA_TYPE_TONE:
|
|
if (clip->multithreaded) {
|
|
clip->cacher->caching = false;
|
|
clip->can_cache.wakeAll();
|
|
} else {
|
|
close_clip_worker(clip);
|
|
}
|
|
break;
|
|
case MEDIA_TYPE_SEQUENCE:
|
|
closeActiveClips(static_cast<Sequence*>(clip->media), false);
|
|
case MEDIA_TYPE_SOLID:
|
|
clip->open = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void cache_clip(Clip* clip, long playhead, bool reset, Clip* nest) {
|
|
if (clip->media_type == MEDIA_TYPE_FOOTAGE || clip->media_type == MEDIA_TYPE_TONE) {
|
|
if (clip->multithreaded) {
|
|
clip->cacher->playhead = playhead;
|
|
clip->cacher->reset = reset;
|
|
clip->cacher->nest = nest;
|
|
|
|
clip->can_cache.wakeAll();
|
|
} else {
|
|
cache_clip_worker(clip, playhead, reset, nest);
|
|
}
|
|
}
|
|
}
|
|
|
|
void get_clip_frame(Clip* c, long playhead) {
|
|
if (c->finished_opening) {
|
|
MediaStream* ms = static_cast<Media*>(c->media)->get_stream_from_file_index(c->track < 0, c->media_stream);
|
|
|
|
int64_t target_pts = playhead_to_timestamp(c, playhead);
|
|
int64_t second_pts = qRound(av_q2d(av_inv_q(c->stream->time_base)));
|
|
if (ms->video_interlacing != VIDEO_PROGRESSIVE) {
|
|
target_pts *= 2;
|
|
second_pts *= 2;
|
|
}
|
|
AVFrame* target_frame = NULL;
|
|
|
|
bool reset = false;
|
|
|
|
if (c->queue.size() > 0) {
|
|
if (ms->infinite_length) {
|
|
target_frame = c->queue.at(0);
|
|
qDebug() << "GCF ==> USE PRECISE (INFINITE)";
|
|
} else {
|
|
// correct frame may be somewhere else in the queue
|
|
int closest_frame = 0;
|
|
for (int i=1;i<c->queue.size();i++) {
|
|
if (c->queue.at(i)->pts == target_pts) {
|
|
qDebug() << "GCF ==> USE PRECISE";
|
|
closest_frame = i;
|
|
break;
|
|
} else if (c->queue.at(i)->pts > c->queue.at(closest_frame)->pts && c->queue.at(i)->pts < target_pts) {
|
|
closest_frame = i;
|
|
}
|
|
}
|
|
|
|
// remove all frames earlier than this one from the queue
|
|
target_frame = c->queue.at(closest_frame);
|
|
c->queue_lock.lock();
|
|
for (int i=0;i<c->queue.size();i++) {
|
|
if (c->queue.at(i)->pts != target_frame->pts && (c->queue.at(i)->pts < target_frame->pts) == (!c->reverse)) {
|
|
av_frame_free(&c->queue[i]); // may be a little heavy for the UI thread?
|
|
c->queue.removeAt(i);
|
|
i--;
|
|
}
|
|
}
|
|
c->queue_lock.unlock();
|
|
|
|
// if this frame is more than one second out, we probably need to reset
|
|
if (qAbs(target_pts - target_frame->pts) > second_pts) {
|
|
target_frame = NULL;
|
|
// qDebug() << "GCF ==> COMPLACENT";
|
|
qDebug() << "GCF ==> RESET";
|
|
reset = true;
|
|
} else {
|
|
qDebug() << "GCF ==> USE IMPRECISE";
|
|
}
|
|
}
|
|
} else {
|
|
reset = true;
|
|
}
|
|
|
|
if (target_frame == NULL || reset) {
|
|
// reset cache
|
|
texture_failed = true;
|
|
qDebug() << "[INFO] Frame queue couldn't keep up - either the user seeked or the system is overloaded (queue size:" << c->queue.size() << ")";
|
|
}
|
|
|
|
if (target_frame != NULL) {
|
|
// add gate if this is the same frame
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, target_frame->linesize[0]/4);
|
|
c->texture->setData(0, QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, target_frame->data[0]);
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
|
}
|
|
|
|
// get more frames
|
|
cache_clip(c, playhead, reset, NULL);
|
|
}
|
|
}
|
|
|
|
/*bool get_clip_frame(Clip* c, long playhead) {
|
|
if (c->finished_opening) {
|
|
// do we need to update the texture?
|
|
MediaStream* ms = static_cast<Media*>(c->media)->get_stream_from_file_index(c->track < 0, c->media_stream);
|
|
|
|
long sequence_clip_time = qMax(0L, playhead - c->timeline_in + c->clip_in);
|
|
|
|
if (c->reverse && !ms->infinite_length) {
|
|
sequence_clip_time = c->getMaximumLength() - sequence_clip_time - 1;
|
|
}
|
|
|
|
double rate = c->getMediaFrameRate();
|
|
if (c->skip_type == SKIP_TYPE_DISCARD) rate *= c->speed;
|
|
long clip_time = refactor_frame_number(sequence_clip_time, c->sequence->frame_rate, rate);
|
|
|
|
AVFrame* current_frame = NULL;
|
|
bool no_frame = false;
|
|
|
|
// get frame data
|
|
if (ms->infinite_length) { // if clip is a still frame, we only need one
|
|
if (c->cache_A.written) {
|
|
// retrieve cached frame
|
|
current_frame = c->cache_A.frames[0];
|
|
} else if (c->lock.tryLock()) {
|
|
// grab image
|
|
cache_clip(c, 0, true, false, false, NULL);
|
|
c->lock.unlock();
|
|
}
|
|
} else {
|
|
// keeping a RAM cache improves performance, however it's detrimental when rendering
|
|
// determine which cache contains the requested frame
|
|
bool using_cache_A = false;
|
|
bool using_cache_B = false;
|
|
AVFrame** cache = NULL;
|
|
long cache_offset = 0;
|
|
bool cache_needs_reset = false;
|
|
|
|
// TODO just removed a bunch of mutexes - is this safe????
|
|
if (c->cache_A.written && clip_time >= c->cache_A.offset && clip_time < c->cache_A.offset + c->cache_size) {
|
|
if (clip_time < (c->cache_A.offset + c->cache_A.write_count)) {
|
|
using_cache_A = true;
|
|
c->cache_A.unread = false;
|
|
cache = c->cache_A.frames;
|
|
cache_offset = c->cache_A.offset;
|
|
} else {
|
|
// frame is coming but isn't here yet, no need to reset cache
|
|
no_frame = true;
|
|
}
|
|
} else if (c->cache_B.written && clip_time >= c->cache_B.offset && clip_time < c->cache_B.offset + c->cache_size) {
|
|
if (clip_time < (c->cache_B.offset + c->cache_B.write_count)) {
|
|
using_cache_B = true;
|
|
c->cache_B.unread = false;
|
|
cache = c->cache_B.frames;
|
|
cache_offset = c->cache_B.offset;
|
|
} else {
|
|
// frame is coming but isn't here yet, no need to reset cache
|
|
no_frame = true;
|
|
}
|
|
} else {
|
|
// this is technically bad, unless we just seeked
|
|
c->cache_A.write_count = 0;
|
|
c->cache_B.write_count = 0;
|
|
c->cache_A.unread = false;
|
|
c->cache_B.unread = false;
|
|
cache_needs_reset = true;
|
|
}
|
|
|
|
if (!no_frame) {
|
|
if (cache != NULL) {
|
|
current_frame = cache[clip_time - cache_offset];
|
|
}
|
|
|
|
// determine whether we should start filling the other cache
|
|
if (!using_cache_A || !using_cache_B) {
|
|
if (c->lock.tryLock()) {
|
|
long cache_time;
|
|
if (cache_needs_reset) {
|
|
cache_time = (c->reverse) ? qMax(clip_time - c->cache_size, 0L) : qMax(clip_time, 0L);
|
|
} else if (c->reverse) {
|
|
cache_time = (cache_offset - c->cache_size);
|
|
} else {
|
|
cache_time = (cache_offset + c->cache_size);
|
|
}
|
|
|
|
bool write_A = (!using_cache_A && !c->cache_A.unread);
|
|
bool write_B = (!using_cache_B && !c->cache_B.unread);
|
|
if (write_A || write_B) {
|
|
// if we have no cache and need to seek, start us at the current playhead, otherwise start at the end of the current cache
|
|
cache_clip(c, cache_time, write_A, write_B, (cache_needs_reset || c->reverse), NULL);
|
|
}
|
|
c->lock.unlock();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (playhead >= c->timeline_in) {
|
|
if (current_frame != NULL) {
|
|
// set up opengl texture
|
|
if (c->texture == NULL) {
|
|
c->texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
|
|
c->texture->setSize(current_frame->width, current_frame->height);
|
|
c->texture->setFormat(QOpenGLTexture::RGBA8_UNorm);
|
|
c->texture->setMipLevels(c->texture->maximumMipLevels());
|
|
c->texture->setMinMagFilters(QOpenGLTexture::Linear, QOpenGLTexture::Linear);
|
|
c->texture->allocateStorage(QOpenGLTexture::RGBA, QOpenGLTexture::UInt8);
|
|
}
|
|
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, current_frame->linesize[0]/4);
|
|
c->texture->setData(0, QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, current_frame->data[0]);
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
|
c->texture_frame = clip_time;
|
|
return true;
|
|
} else {
|
|
texture_failed = true;
|
|
qDebug() << "[ERROR] Failed to retrieve frame from cache (R:" << clip_time << "| A:" << c->cache_A.offset << "-" << c->cache_A.offset+c->cache_size-1 << "| B:" << c->cache_B.offset << "-" << c->cache_B.offset+c->cache_size-1 << "| WA:" << c->cache_A.written << "| WB:" << c->cache_B.written << ")";
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}*/
|
|
|
|
long playhead_to_clip_frame(Clip* c, long playhead) {
|
|
return (qMax(0L, playhead - c->timeline_in) + c->clip_in);
|
|
}
|
|
|
|
double playhead_to_clip_seconds(Clip* c, long playhead) {
|
|
// returns time in seconds
|
|
long clip_frame = playhead_to_clip_frame(c, playhead);
|
|
if (c->reverse) clip_frame = c->getMaximumLength() - clip_frame;
|
|
return ((double) clip_frame/c->sequence->frame_rate)*c->speed;
|
|
}
|
|
|
|
int64_t seconds_to_timestamp(Clip* c, double seconds) {
|
|
return qFloor((seconds * c->stream->time_base.den)/c->stream->time_base.num);
|
|
}
|
|
|
|
int64_t playhead_to_timestamp(Clip* c, long playhead) {
|
|
return seconds_to_timestamp(c, playhead_to_clip_seconds(c, playhead));
|
|
}
|
|
|
|
int retrieve_next_frame(Clip* c, AVFrame* f) {
|
|
int result = 0;
|
|
int receive_ret;
|
|
|
|
// do we need to retrieve a new packet for a new frame?
|
|
av_frame_unref(f);
|
|
while ((receive_ret = avcodec_receive_frame(c->codecCtx, f)) == AVERROR(EAGAIN)) {
|
|
int read_ret = 0;
|
|
do {
|
|
if (c->pkt_written) {
|
|
av_packet_unref(c->pkt);
|
|
c->pkt_written = false;
|
|
}
|
|
read_ret = av_read_frame(c->formatCtx, c->pkt);
|
|
if (read_ret >= 0) {
|
|
c->pkt_written = true;
|
|
}
|
|
} while (read_ret >= 0 && c->pkt->stream_index != c->media_stream);
|
|
|
|
if (read_ret >= 0) {
|
|
int send_ret = avcodec_send_packet(c->codecCtx, c->pkt);
|
|
if (send_ret < 0) {
|
|
qDebug() << "[ERROR] Failed to send packet to decoder." << send_ret;
|
|
return send_ret;
|
|
}
|
|
} else {
|
|
if (read_ret == AVERROR_EOF) {
|
|
int send_ret = avcodec_send_packet(c->codecCtx, NULL);
|
|
if (send_ret < 0) {
|
|
qDebug() << "[ERROR] Failed to send packet to decoder." << send_ret;
|
|
return send_ret;
|
|
}
|
|
} else {
|
|
qDebug() << "[ERROR] Could not read frame." << read_ret;
|
|
return read_ret; // skips trying to find a frame at all
|
|
}
|
|
}
|
|
}
|
|
if (receive_ret < 0) {
|
|
if (receive_ret != AVERROR_EOF) qDebug() << "[ERROR] Failed to receive packet from decoder." << receive_ret;
|
|
result = receive_ret;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool is_clip_active(Clip* c, long playhead) {
|
|
return c->enabled
|
|
&& c->timeline_in < playhead + ceil(c->sequence->frame_rate)
|
|
&& c->timeline_out > playhead
|
|
&& playhead - c->timeline_in + c->clip_in < c->getMaximumLength();
|
|
}
|
|
|
|
void set_sequence(Sequence* s) {
|
|
closeActiveClips(sequence, true);
|
|
panel_effect_controls->clear_effects(true);
|
|
sequence = s;
|
|
panel_sequence_viewer->set_main_sequence();
|
|
panel_timeline->update_sequence();
|
|
panel_timeline->setFocus();
|
|
}
|
|
|
|
void closeActiveClips(Sequence *s, bool wait) {
|
|
if (s != NULL) {
|
|
for (int i=0;i<s->clips.size();i++) {
|
|
Clip* c = s->clips.at(i);
|
|
if (c != NULL) {
|
|
if (c->media_type == MEDIA_TYPE_SEQUENCE) {
|
|
closeActiveClips(static_cast<Sequence*>(c->media), wait);
|
|
close_clip(c);
|
|
} else if (c->media_type == MEDIA_TYPE_FOOTAGE && c->open) {
|
|
close_clip(c);
|
|
if (c->multithreaded && wait) c->cacher->wait();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|