/*
- Copyright (C) 2016-2017 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2016-2018 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
#include "player.h"
#include "util.h"
#include "log.h"
+#include "dcpomatic_log.h"
+#include "cross.h"
#include "compose.hpp"
#include "exceptions.h"
#include <boost/weak_ptr.hpp>
using boost::shared_ptr;
using boost::bind;
using boost::optional;
+using boost::function;
/** Minimum video readahead in frames */
#define MINIMUM_VIDEO_READAHEAD 10
-/** Maximum video readahead in frames; should never be reached unless there are bugs in Player */
-#define MAXIMUM_VIDEO_READAHEAD 24
+/** Maximum video readahead in frames; should never be exceeded (by much) unless there are bugs in Player */
+#define MAXIMUM_VIDEO_READAHEAD 48
/** Minimum audio readahead in frames */
#define MINIMUM_AUDIO_READAHEAD (48000 * MINIMUM_VIDEO_READAHEAD / 24)
-/** Minimum audio readahead in frames; should never be reached unless there are bugs in Player */
+/** 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)
-#define LOG_WARNING(...) _log->log (String::compose(__VA_ARGS__), LogEntry::TYPE_WARNING);
-
-Butler::Butler (shared_ptr<Player> player, shared_ptr<Log> log, AudioMapping audio_mapping, int audio_channels)
+/** @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 (
+ shared_ptr<Player> player,
+ AudioMapping audio_mapping,
+ int audio_channels,
+ function<AVPixelFormat (AVPixelFormat)> pixel_format,
+ bool aligned,
+ bool fast
+ )
: _player (player)
- , _log (log)
, _prepare_work (new boost::asio::io_service::work (_prepare_service))
, _pending_seek_accurate (false)
+ , _suspended (0)
, _finished (false)
, _died (false)
, _stop_thread (false)
, _audio_mapping (audio_mapping)
, _audio_channels (audio_channels)
, _disable_audio (false)
+ , _pixel_format (pixel_format)
+ , _aligned (aligned)
+ , _fast (fast)
{
_player_video_connection = _player->Video.connect (bind (&Butler::video, this, _1, _2));
- _player_audio_connection = _player->Audio.connect (bind (&Butler::audio, this, _1));
+ _player_audio_connection = _player->Audio.connect (bind (&Butler::audio, this, _1, _2, _3));
+ _player_text_connection = _player->Text.connect (bind (&Butler::text, this, _1, _2, _3, _4));
+ /* 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, _3), boost::signals2::at_front);
_thread = new boost::thread (bind (&Butler::thread, this));
#ifdef DCPOMATIC_LINUX
pthread_setname_np (_thread->native_handle(), "butler");
/* Create some threads to do work on the PlayerVideos we are creating; at present this is used to
multi-thread JPEG2000 decoding.
*/
- for (size_t i = 0; i < boost::thread::hardware_concurrency(); ++i) {
+
+ LOG_TIMING("start-prepare-threads %1", boost::thread::hardware_concurrency() * 2);
+
+ for (size_t i = 0; i < boost::thread::hardware_concurrency() * 2; ++i) {
_prepare_pool.create_thread (bind (&boost::asio::io_service::run, &_prepare_service));
}
}
{
if (_video.size() >= MAXIMUM_VIDEO_READAHEAD * 10) {
/* This is way too big */
- throw ProgrammingError
- (__FILE__, __LINE__, String::compose ("Butler video buffers reached %1 frames (audio is %2)", _video.size(), _audio.size()));
+ optional<DCPTime> pos = _audio.peek();
+ if (pos) {
+ throw ProgrammingError
+ (__FILE__, __LINE__, String::compose ("Butler video buffers reached %1 frames (audio is %2 at %3)", _video.size(), _audio.size(), pos->get()));
+ } else {
+ throw ProgrammingError
+ (__FILE__, __LINE__, String::compose ("Butler video buffers reached %1 frames (audio is %2)", _video.size(), _audio.size()));
+ }
}
if (_audio.size() >= MAXIMUM_AUDIO_READAHEAD * 10) {
/* This is way too big */
- throw ProgrammingError
- (__FILE__, __LINE__, String::compose ("Butler audio buffers reached %1 frames (video is %2)", _audio.size(), _video.size()));
+ optional<DCPTime> pos = _audio.peek();
+ if (pos) {
+ throw ProgrammingError
+ (__FILE__, __LINE__, String::compose ("Butler audio buffers reached %1 frames at %2 (video is %3)", _audio.size(), pos->get(), _video.size()));
+ } else {
+ throw ProgrammingError
+ (__FILE__, __LINE__, String::compose ("Butler audio buffers reached %1 frames (video is %3)", _audio.size(), _video.size()));
+ }
}
if (_video.size() >= MAXIMUM_VIDEO_READAHEAD * 2) {
LOG_WARNING ("Butler audio buffers reached %1 frames (video is %2)", _audio.size(), _video.size());
}
- if (_stop_thread || _finished || _died) {
+ if (_stop_thread || _finished || _died || _suspended) {
/* Definitely do not run */
return false;
}
}
pair<shared_ptr<PlayerVideo>, DCPTime>
-Butler::get_video ()
+Butler::get_video (Error* e)
{
boost::mutex::scoped_lock lm (_mutex);
+ if (_suspended) {
+ if (e) {
+ *e = AGAIN;
+ }
+ return make_pair(shared_ptr<PlayerVideo>(), DCPTime());
+ }
+
/* Wait for data if we have none */
while (_video.empty() && !_finished && !_died) {
_arrived.wait (lm);
}
if (_video.empty()) {
- return make_pair (shared_ptr<PlayerVideo>(), DCPTime());
+ if (e) {
+ *e = NONE;
+ }
+ return make_pair(shared_ptr<PlayerVideo>(), DCPTime());
}
pair<shared_ptr<PlayerVideo>, DCPTime> const r = _video.get ();
return r;
}
+optional<TextRingBuffers::Data>
+Butler::get_closed_caption ()
+{
+ boost::mutex::scoped_lock lm (_mutex);
+ return _closed_caption.get ();
+}
+
void
Butler::seek (DCPTime position, bool accurate)
{
boost::mutex::scoped_lock lm (_mutex);
+ _awaiting = optional<DCPTime>();
+ seek_unlocked (position, accurate);
+}
+
+void
+Butler::seek_unlocked (DCPTime position, bool accurate)
+{
if (_died) {
return;
}
- _video.clear ();
- _audio.clear ();
_finished = false;
_pending_seek_position = position;
_pending_seek_accurate = accurate;
+
+ {
+ boost::mutex::scoped_lock lm (_buffers_mutex);
+ _video.clear ();
+ _audio.clear ();
+ _closed_caption.clear ();
+ }
+
_summon.notify_all ();
}
void
-Butler::prepare (weak_ptr<PlayerVideo> weak_video) const
+Butler::prepare (weak_ptr<PlayerVideo> weak_video)
+try
{
shared_ptr<PlayerVideo> video = weak_video.lock ();
/* If the weak_ptr cannot be locked the video obviously no longer requires any work */
if (video) {
- video->prepare ();
+ LOG_TIMING("start-prepare in %1", thread_id());
+ video->prepare (_pixel_format, _aligned, _fast);
+ LOG_TIMING("finish-prepare in %1", thread_id());
}
}
+catch (...)
+{
+ store_current ();
+ boost::mutex::scoped_lock lm (_mutex);
+ _died = true;
+}
void
Butler::video (shared_ptr<PlayerVideo> video, DCPTime time)
{
boost::mutex::scoped_lock lm (_mutex);
+
if (_pending_seek_position) {
- /* Don't store any video while a seek is pending */
+ /* Don't store any video in this case */
return;
}
_prepare_service.post (bind (&Butler::prepare, this, weak_ptr<PlayerVideo>(video)));
+
+ boost::mutex::scoped_lock lm2 (_buffers_mutex);
_video.put (video, time);
}
void
-Butler::audio (shared_ptr<AudioBuffers> audio)
+Butler::audio (shared_ptr<AudioBuffers> audio, DCPTime time, int frame_rate)
{
{
boost::mutex::scoped_lock lm (_mutex);
if (_pending_seek_position || _disable_audio) {
- /* Don't store any audio while a seek is pending, or if audio is disabled */
+ /* Don't store any audio in these cases */
return;
}
}
- _audio.put (remap (audio, _audio_channels, _audio_mapping));
+ boost::mutex::scoped_lock lm2 (_buffers_mutex);
+ _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 true if there was a buffer underrun, otherwise false.
+ * @return time of this audio, or unset if there was a buffer underrun.
*/
-bool
+optional<DCPTime>
Butler::get_audio (float* out, Frame frames)
{
- bool const underrun = _audio.get (out, _audio_channels, frames);
+ optional<DCPTime> t = _audio.get (out, _audio_channels, frames);
_summon.notify_all ();
- return underrun;
+ return t;
}
void
/* XXX: should also look at _audio.memory_used() */
return _video.memory_used();
}
+
+void
+Butler::player_change (ChangeType type, bool frequent)
+{
+ boost::mutex::scoped_lock lm (_mutex);
+
+ if (type == CHANGE_TYPE_PENDING) {
+ ++_suspended;
+ } else if (type == CHANGE_TYPE_DONE) {
+ --_suspended;
+ if (_died || _pending_seek_position || frequent) {
+ lm.unlock ();
+ _summon.notify_all ();
+ return;
+ }
+
+ DCPTime seek_to;
+ DCPTime 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_to = *_awaiting;
+ } else {
+ seek_to = next;
+ }
+
+ seek_unlocked (seek_to, true);
+ _awaiting = seek_to;
+ } else if (type == CHANGE_TYPE_CANCELLED) {
+ --_suspended;
+ }
+
+ lm.unlock ();
+ _summon.notify_all ();
+}
+
+void
+Butler::text (PlayerText pt, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
+{
+ if (type != TEXT_CLOSED_CAPTION) {
+ return;
+ }
+
+ DCPOMATIC_ASSERT (track);
+
+ boost::mutex::scoped_lock lm2 (_buffers_mutex);
+ _closed_caption.put (pt, *track, period);
+}
projects / dcpomatic.git / blobdiff