/*
- Copyright (C) 2016-2018 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2016-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
#include "butler.h"
#include "player.h"
#include "util.h"
#include "cross.h"
#include "compose.hpp"
#include "exceptions.h"
-#include <boost/weak_ptr.hpp>
-#include <boost/shared_ptr.hpp>
+#include "video_content.h"
+
using std::cout;
using std::pair;
using std::make_pair;
using std::string;
-using boost::weak_ptr;
-using boost::shared_ptr;
+using std::weak_ptr;
+using std::shared_ptr;
using boost::bind;
using boost::optional;
-using boost::function;
+using std::function;
using namespace dcpomatic;
+#if BOOST_VERSION >= 106100
+using namespace boost::placeholders;
+#endif
+
/** Minimum video readahead in frames */
#define MINIMUM_VIDEO_READAHEAD 10
/** Maximum audio readahead in frames; should never be exceeded (by much) unless there are bugs in Player */
#define MAXIMUM_AUDIO_READAHEAD (48000 * MAXIMUM_VIDEO_READAHEAD / 24)
+
/** @param pixel_format Pixel format functor that will be used when calling ::image on PlayerVideos coming out of this
* butler. This will be used (where possible) to prepare the PlayerVideos so that calling image() on them is quick.
* @param aligned Same as above for the `aligned' flag.
* @param fast Same as above for the `fast' flag.
*/
Butler::Butler (
+ weak_ptr<const Film> film,
shared_ptr<Player> player,
AudioMapping audio_mapping,
int audio_channels,
function<AVPixelFormat (AVPixelFormat)> pixel_format,
+ VideoRange video_range,
bool aligned,
bool fast
)
- : _player (player)
- , _prepare_work (new boost::asio::io_service::work (_prepare_service))
+ : _film (film)
+ , _player (player)
+ , _prepare_work (new boost::asio::io_service::work(_prepare_service))
, _pending_seek_accurate (false)
, _suspended (0)
, _finished (false)
, _audio_channels (audio_channels)
, _disable_audio (false)
, _pixel_format (pixel_format)
+ , _video_range (video_range)
, _aligned (aligned)
, _fast (fast)
{
/* The butler must hear about things first, otherwise it might not sort out suspensions in time for
get_video() to be called in response to this signal.
*/
- _player_change_connection = _player->Change.connect (bind (&Butler::player_change, this, _1), boost::signals2::at_front);
+ _player_change_connection = _player->Change.connect (bind (&Butler::player_change, this, _1, _2), boost::signals2::at_front);
_thread = boost::thread (bind(&Butler::thread, this));
#ifdef DCPOMATIC_LINUX
pthread_setname_np (_thread.native_handle(), "butler");
}
}
+
Butler::~Butler ()
{
boost::this_thread::disable_interruption dis;
return (_video.size() < MAXIMUM_VIDEO_READAHEAD) && (_audio.size() < MAXIMUM_AUDIO_READAHEAD);
}
+
void
Butler::thread ()
try
{
+ start_of_thread ("Butler");
+
while (true) {
boost::mutex::scoped_lock lm (_mutex);
boost::mutex::scoped_lock lm (_mutex);
_finished = true;
_arrived.notify_all ();
+} catch (std::exception& e) {
+ store_current ();
+ boost::mutex::scoped_lock lm (_mutex);
+ _died = true;
+ _died_message = e.what ();
+ _arrived.notify_all ();
} catch (...) {
store_current ();
boost::mutex::scoped_lock lm (_mutex);
_arrived.notify_all ();
}
+
/** @param blocking true if we should block until video is available. If blocking is false
* and no video is immediately available the method will return a 0 PlayerVideo and the error AGAIN.
* @param e if non-0 this is filled with an error code (if an error occurs) or is untouched if no error occurs.
{
boost::mutex::scoped_lock lm (_mutex);
- if (_suspended || (_video.empty() && !blocking)) {
+ auto setup_error = [this](Error* e, Error::Code fallback) {
if (e) {
- *e = AGAIN;
+ if (_died) {
+ e->code = Error::DIED;
+ e->message = _died_message;
+ } else if (_finished) {
+ e->code = Error::FINISHED;
+ } else {
+ e->code = fallback;
+ }
}
+ };
+
+ if (_video.empty() && (_finished || _died || (_suspended && !blocking))) {
+ setup_error (e, Error::AGAIN);
return make_pair(shared_ptr<PlayerVideo>(), DCPTime());
}
}
if (_video.empty()) {
- if (e) {
- if (_died) {
- *e = DIED;
- } else if (_finished) {
- *e = FINISHED;
- } else {
- *e = NONE;
- }
- }
+ setup_error (e, Error::NONE);
return make_pair(shared_ptr<PlayerVideo>(), DCPTime());
}
- pair<shared_ptr<PlayerVideo>, DCPTime> const r = _video.get ();
+ auto const r = _video.get ();
_summon.notify_all ();
return r;
}
+
optional<TextRingBuffers::Data>
Butler::get_closed_caption ()
{
return _closed_caption.get ();
}
+
void
Butler::seek (DCPTime position, bool accurate)
{
seek_unlocked (position, accurate);
}
+
void
Butler::seek_unlocked (DCPTime position, bool accurate)
{
_summon.notify_all ();
}
+
void
Butler::prepare (weak_ptr<PlayerVideo> weak_video)
try
{
- shared_ptr<PlayerVideo> video = weak_video.lock ();
+ auto video = weak_video.lock ();
/* If the weak_ptr cannot be locked the video obviously no longer requires any work */
if (video) {
LOG_TIMING("start-prepare in %1", thread_id());
- video->prepare (_pixel_format, _aligned, _fast);
+ video->prepare (_pixel_format, _video_range, _aligned, _fast);
LOG_TIMING("finish-prepare in %1", thread_id());
}
}
+catch (std::exception& e)
+{
+ store_current ();
+ boost::mutex::scoped_lock lm (_mutex);
+ _died = true;
+ _died_message = e.what ();
+}
catch (...)
{
store_current ();
_died = true;
}
+
void
Butler::video (shared_ptr<PlayerVideo> video, DCPTime time)
{
return;
}
- _prepare_service.post (bind
(&Butler::prepare, this, weak_ptr<PlayerVideo>(video)));
+ _prepare_service.post (bind(&Butler::prepare, this, weak_ptr<PlayerVideo>(video)));
_video.put (video, time);
}
+
void
Butler::audio (shared_ptr<AudioBuffers> audio, DCPTime time, int frame_rate)
{
return;
}
- _audio.put (remap (audio, _audio_channels, _audio_mapping), time, frame_rate);
+ _audio.put (remap(audio, _audio_channels, _audio_mapping), time, frame_rate);
}
+
/** Try to get `frames' frames of audio and copy it into `out'. Silence
* will be filled if no audio is available.
* @return time of this audio, or unset if there was a buffer underrun.
optional<DCPTime>
Butler::get_audio (float* out, Frame frames)
{
- optional<DCPTime> t = _audio.get (out, _audio_channels, frames);
+ auto t = _audio.get (out, _audio_channels, frames);
_summon.notify_all ();
return t;
}
+
void
Butler::disable_audio ()
{
_disable_audio = true;
}
+
pair<size_t, string>
Butler::memory_used () const
{
return _video.memory_used();
}
+
void
-Butler::player_change (ChangeType type)
+Butler::player_change (ChangeType type, int property)
{
+ if (property == VideoContentProperty::CROP) {
+ if (type == ChangeType::DONE) {
+ auto film = _film.lock();
+ if (film) {
+ _video.reset_metadata (film, _player->video_container_size());
+ }
+ }
+ return;
+ }
+
boost::mutex::scoped_lock lm (_mutex);
- if (type == CHANGE_TYPE_PENDING) {
+ if (type == ChangeType::PENDING) {
++_suspended;
- } else if (type == CHANGE_TYPE_DONE) {
+ } else if (type == ChangeType::DONE) {
--_suspended;
if (_died || _pending_seek_position) {
lm.unlock ();
}
DCPTime seek_to;
- DCPTime next = _video.get().second;
+ auto next = _video.get().second;
if (_awaiting && _awaiting > next) {
/* We have recently done a player_changed seek and our buffers haven't been refilled yet,
so assume that we're seeking to the same place as last time.
seek_unlocked (seek_to, true);
_awaiting = seek_to;
- } else if (type == CHANGE_TYPE_CANCELLED) {
+ } else if (type == ChangeType::CANCELLED) {
--_suspended;
}
_summon.notify_all ();
}
+
void
Butler::text (PlayerText pt, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
{
- if (type != TEXT_CLOSED_CAPTION) {
+ if (type != TextType::CLOSED_CAPTION) {
return;
}
_closed_caption.put (pt, *track, period);
}
+
+
+string
+Butler::Error::summary () const
+{
+ switch (code)
+ {
+ case Error::NONE:
+ return "No error registered";
+ case Error::AGAIN:
+ return "Butler not ready";
+ case Error::DIED:
+ return String::compose("Butler died (%1)", message);
+ case Error::FINISHED:
+ return "Butler finished";
+ }
+
+ return "";
+}
+
projects / dcpomatic.git / blobdiff