/*
Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "film.h"
#include "log.h"
#include "compose.hpp"
+#include <boost/foreach.hpp>
#include <iostream>
#include "i18n.h"
using boost::shared_ptr;
using boost::optional;
-VideoDecoder::VideoDecoder (shared_ptr<const Content> c, shared_ptr<Log> log)
+VideoDecoder::VideoDecoder (Decoder* parent, shared_ptr<const Content> c, shared_ptr<Log> log)
#ifdef DCPOMATIC_DEBUG
: test_gaps (0)
- , _video_content (c)
+ , _parent (parent),
+ _content (c)
#else
- : _video_content (c)
+ : _parent (parent)
+ , _content (c)
#endif
, _log (log)
, _last_seek_accurate (true)
- , _ignore_video (false)
+ , _ignore (false)
{
- _black_image.reset (new Image (AV_PIX_FMT_RGB24, _video_content->video->size(), true));
+ _black_image.reset (new Image (AV_PIX_FMT_RGB24, _content->video->size(), true));
_black_image->make_black ();
}
list<ContentVideo>
-VideoDecoder::decoded_video (Frame frame)
+VideoDecoder::decoded (Frame frame)
{
list<ContentVideo> output;
- for (list<ContentVideo>::const_iterator i = _decoded_video.begin(); i != _decoded_video.end(); ++i) {
- if (i->frame == frame) {
- output.push_back (*i);
+ BOOST_FOREACH (ContentVideo const & i, _decoded) {
+ if (i.frame == frame) {
+ output.push_back (i);
}
}
* @return Frames; there may be none (if there is no video there), 1 for 2D or 2 for 3D.
*/
list<ContentVideo>
-VideoDecoder::get_video (Frame frame, bool accurate)
+VideoDecoder::get (Frame frame, bool accurate)
{
if (_no_data_frame && frame >= _no_data_frame.get()) {
return list<ContentVideo> ();
}
- /* At this stage, if we have get_video()ed before, _decoded_video will contain the last frame that this
- method returned (and possibly a few more). If the requested frame is not in _decoded_video and it is not the next
- one after the end of _decoded_video we need to seek.
+ /* At this stage, if we have get_video()ed before, _decoded will contain the last frame that this
+ method returned (and possibly a few more). If the requested frame is not in _decoded and it is not the next
+ one after the end of _decoded we need to seek.
*/
_log->log (String::compose ("VD has request for %1", frame), LogEntry::TYPE_DEBUG_DECODE);
- if (_decoded_video.empty() || frame < _decoded_video.front().frame || frame > (_decoded_video.back().frame + 1)) {
- seek (ContentTime::from_frames (frame, _video_content->active_video_frame_rate()), accurate);
+ if (_decoded.empty() || frame < _decoded.front().frame || frame > (_decoded.back().frame + 1)) {
+ _parent->seek (ContentTime::from_frames (frame, _content->active_video_frame_rate()), accurate);
}
list<ContentVideo> dec;
bool no_data = false;
while (true) {
- if (!decoded_video(frame).empty ()) {
+ if (!decoded(frame).empty ()) {
/* We got what we want */
break;
}
- if (pass (PASS_REASON_VIDEO, accurate)) {
+ if (_parent->pass (Decoder::PASS_REASON_VIDEO, accurate)) {
/* The decoder has nothing more for us */
no_data = true;
break;
}
- if (!_decoded_video.empty() && _decoded_video.front().frame > frame) {
+ if (!_decoded.empty() && _decoded.front().frame > frame) {
/* We're never going to get the frame we want. Perhaps the caller is asking
* for a video frame before the content's video starts (if its audio
* begins before its video, for example).
}
}
- dec = decoded_video (frame);
+ dec = decoded (frame);
if (no_data && dec.empty()) {
_no_data_frame = frame;
} else {
/* Any frame will do: use the first one that comes out of pass() */
- while (_decoded_video.empty() && !pass (PASS_REASON_VIDEO, accurate)) {}
- if (!_decoded_video.empty ()) {
- dec.push_back (_decoded_video.front ());
+ while (_decoded.empty() && !_parent->pass (Decoder::PASS_REASON_VIDEO, accurate)) {}
+ if (!_decoded.empty ()) {
+ dec.push_back (_decoded.front ());
}
}
- /* Clean up _decoded_video; keep the frame we are returning, if any (which may have two images
+ /* Clean up _decoded; keep the frame we are returning, if any (which may have two images
for 3D), but nothing before that */
- while (!_decoded_video.empty() && !dec.empty() && _decoded_video.front().frame < dec.front().frame) {
- _decoded_video.pop_front ();
+ while (!_decoded.empty() && !dec.empty() && _decoded.front().frame < dec.front().frame) {
+ _decoded.pop_front ();
}
return dec;
}
-/** Fill _decoded_video from `from' up to, but not including, `to' with
+/** Fill _decoded from `from' up to, but not including, `to' with
* a frame for one particular Eyes value (which could be EYES_BOTH,
* EYES_LEFT or EYES_RIGHT)
*/
Part filler_part = PART_WHOLE;
/* ...unless there's some video we can fill with */
- if (!_decoded_video.empty ()) {
- filler_image = _decoded_video.back().image;
- filler_part = _decoded_video.back().part;
+ if (!_decoded.empty ()) {
+ filler_image = _decoded.back().image;
+ filler_part = _decoded.back().part;
}
for (Frame i = from; i < to; ++i) {
#ifdef DCPOMATIC_DEBUG
test_gaps++;
#endif
- _decoded_video.push_back (
+ _decoded.push_back (
ContentVideo (filler_image, eye, filler_part, i)
);
}
}
-/** Fill _decoded_video from `from' up to, but not including, `to'
+/** Fill _decoded from `from' up to, but not including, `to'
* adding both left and right eye frames.
*/
void
Part filler_right_part = PART_WHOLE;
/* ...unless there's some video we can fill with */
- for (list<ContentVideo>::const_reverse_iterator i = _decoded_video.rbegin(); i != _decoded_video.rend(); ++i) {
+ for (list<ContentVideo>::const_reverse_iterator i = _decoded.rbegin(); i != _decoded.rend(); ++i) {
if (i->eyes == EYES_LEFT && !filler_left_image) {
filler_left_image = i->image;
filler_left_part = i->part;
}
Frame filler_frame = from;
- Eyes filler_eye = _decoded_video.empty() ? EYES_LEFT : _decoded_video.back().eyes;
+ Eyes filler_eye = _decoded.empty() ? EYES_LEFT : _decoded.back().eyes;
- if (_decoded_video.empty ()) {
+ if (_decoded.empty ()) {
filler_frame = 0;
filler_eye = EYES_LEFT;
- } else if (_decoded_video.back().eyes == EYES_LEFT) {
- filler_frame = _decoded_video.back().frame;
+ } else if (_decoded.back().eyes == EYES_LEFT) {
+ filler_frame = _decoded.back().frame;
filler_eye = EYES_RIGHT;
- } else if (_decoded_video.back().eyes == EYES_RIGHT) {
- filler_frame = _decoded_video.back().frame + 1;
+ } else if (_decoded.back().eyes == EYES_RIGHT) {
+ filler_frame = _decoded.back().frame + 1;
filler_eye = EYES_LEFT;
}
test_gaps++;
#endif
- _decoded_video.push_back (
+ _decoded.push_back (
ContentVideo (
filler_eye == EYES_LEFT ? filler_left_image : filler_right_image,
filler_eye,
}
}
-/** Called by subclasses when they have a video frame ready */
+/** Called by decoder classes when they have a video frame ready */
void
-VideoDecoder::video (shared_ptr<const ImageProxy> image, Frame frame)
+VideoDecoder::give (shared_ptr<const ImageProxy> image, Frame frame)
{
- if (_ignore_video) {
+ if (_ignore) {
return;
}
_log->log (String::compose ("VD receives %1", frame), LogEntry::TYPE_DEBUG_DECODE);
- /* Work out what we are going to push into _decoded_video next */
+ /* Work out what we are going to push into _decoded next */
list<ContentVideo> to_push;
- switch (_video_content->video->frame_type ()) {
+ switch (_content->video->frame_type ()) {
case VIDEO_FRAME_TYPE_2D:
to_push.push_back (ContentVideo (image, EYES_BOTH, PART_WHOLE, frame));
break;
/* We receive the same frame index twice for 3D-alternate; hence we know which
frame this one is.
*/
- bool const same = (!_decoded_video.empty() && frame == _decoded_video.back().frame);
+ bool const same = (!_decoded.empty() && frame == _decoded.back().frame);
to_push.push_back (ContentVideo (image, same ? EYES_RIGHT : EYES_LEFT, PART_WHOLE, frame));
break;
}
}
/* Now VideoDecoder is required never to have gaps in the frames that it presents
- via get_video(). Hence we need to fill in any gap between the last thing in _decoded_video
+ via get_video(). Hence we need to fill in any gap between the last thing in _decoded
and the things we are about to push.
*/
optional<Frame> from;
optional<Frame> to;
- if (_decoded_video.empty() && _last_seek_time && _last_seek_accurate) {
- from = _last_seek_time->frames_round (_video_content->active_video_frame_rate ());
+ if (_decoded.empty() && _last_seek_time && _last_seek_accurate) {
+ from = _last_seek_time->frames_round (_content->active_video_frame_rate ());
to = to_push.front().frame;
- } else if (!_decoded_video.empty ()) {
- from = _decoded_video.back().frame + 1;
+ } else if (!_decoded.empty ()) {
+ from = _decoded.back().frame + 1;
to = to_push.front().frame;
}
}
if (from) {
- switch (_video_content->video->frame_type ()) {
+ switch (_content->video->frame_type ()) {
case VIDEO_FRAME_TYPE_2D:
fill_one_eye (from.get(), to.get (), EYES_BOTH);
break;
}
}
- copy (to_push.begin(), to_push.end(), back_inserter (_decoded_video));
+ copy (to_push.begin(), to_push.end(), back_inserter (_decoded));
/* We can't let this build up too much or we will run out of memory. There is a
- `best' value for the allowed size of _decoded_video which balances memory use
+ `best' value for the allowed size of _decoded which balances memory use
with decoding efficiency (lack of seeks). Throwing away video frames here
is not a problem for correctness, so do it.
*/
- while (_decoded_video.size() > 96) {
- _decoded_video.pop_back ();
+ while (_decoded.size() > 96) {
+ _decoded.pop_back ();
}
}
void
VideoDecoder::seek (ContentTime s, bool accurate)
{
- _decoded_video.clear ();
+ _decoded.clear ();
_last_seek_time = s;
_last_seek_accurate = accurate;
}
-/** Set this player never to produce any video data */
+/** Set this decoder never to produce any data */
void
-VideoDecoder::set_ignore_video ()
+VideoDecoder::set_ignore ()
{
- _ignore_video = true;
+ _ignore = true;
}
projects / dcpomatic.git / blobdiff