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mythplayer.cpp
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mythplayer.cpp
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// -*- Mode: c++ -*-
#undef HAVE_AV_CONFIG_H
// Std C headers
#include <stdint.h>
#include <cstdio>
#include <cstdlib>
#include <cassert>
#include <cerrno>
#include <ctime>
#include <cmath>
// POSIX headers
#include <unistd.h>
#include <fcntl.h>
#include <sched.h>
#include <sys/time.h>
// C++ headers
#include <algorithm>
#include <iostream>
using namespace std;
// Qt headers
#include <QCoreApplication>
#include <QThread>
#include <QKeyEvent>
#include <QDir>
// MythTV headers
#include "mythconfig.h"
#include "mythdbcon.h"
#include "dialogbox.h"
#include "mythplayer.h"
#include "DetectLetterbox.h"
#include "audioplayer.h"
#include "recordingprofile.h"
#include "teletextscreen.h"
#include "interactivescreen.h"
#include "remoteutil.h"
#include "programinfo.h"
#include "mythcorecontext.h"
#include "fifowriter.h"
#include "filtermanager.h"
#include "util.h"
#include "decodeencode.h"
#include "livetvchain.h"
#include "decoderbase.h"
#include "nuppeldecoder.h"
#include "avformatdecoder.h"
#include "dummydecoder.h"
#include "jobqueue.h"
#include "NuppelVideoRecorder.h"
#include "tv_play.h"
#include "interactivetv.h"
#include "mythverbose.h"
#include "myth_imgconvert.h"
#include "mythsystemevent.h"
#include "mythpainter.h"
#include "mythimage.h"
#include "mythuiimage.h"
extern "C" {
#include "vbitext/vbi.h"
#include "vsync.h"
#include "libavcodec/avcodec.h"
#include "libswscale/swscale.h"
}
#include "remoteencoder.h"
#include "videoout_null.h"
#if ! HAVE_ROUND
#define round(x) ((int) ((x) + 0.5))
#endif
#if CONFIG_DARWIN
extern "C" {
int isnan(double);
}
#endif
static unsigned dbg_ident(const MythPlayer*);
#define LOC QString("Player(%1): ").arg(dbg_ident(this),0,36)
#define LOC_WARN QString("Player(%1), Warning: ").arg(dbg_ident(this),0,36)
#define LOC_ERR QString("Player(%1), Error: ").arg(dbg_ident(this),0,36)
#define LOC_DEC QString("Player(%1): ").arg(dbg_ident(m_mp),0,36)
QEvent::Type PlayerTimer::kPlayerEventType =
(QEvent::Type) QEvent::registerEventType();
PlayerTimer::PlayerTimer(MythPlayer *player) : m_mp(player), m_queue_size(0)
{
if (!m_mp)
VERBOSE(VB_IMPORTANT, QString("PlayerTimer has no parent."));
PostNextEvent();
}
void PlayerTimer::PostNextEvent(void)
{
QEvent *event = new QEvent(kPlayerEventType);
qApp->postEvent(this, event);
m_queue_size++;
}
bool PlayerTimer::event(QEvent *e)
{
if (e->type() == kPlayerEventType)
{
// TODO this may fail if events are lost and the queue size is wrong
m_queue_size--;
uint max_queue = m_mp->GetFFRewSkip() == 1 ? 3 : 1;
while (m_queue_size < max_queue)
PostNextEvent();
if (m_mp && !m_mp->IsErrored())
{
m_mp->EventLoop();
m_mp->VideoLoop();
}
return true;
}
return false;
}
void DecoderThread::run(void)
{
if (!m_mp)
return;
VERBOSE(VB_PLAYBACK, LOC_DEC + QString("Decoder thread starting."));
m_mp->DecoderLoop(m_start_paused);
VERBOSE(VB_PLAYBACK, LOC_DEC + QString("Decoder thread exiting."));
}
static const int toCaptionType(int type)
{
if (kTrackTypeCC608 == type) return kDisplayCC608;
if (kTrackTypeCC708 == type) return kDisplayCC708;
if (kTrackTypeSubtitle == type) return kDisplayAVSubtitle;
if (kTrackTypeTeletextCaptions == type) return kDisplayTeletextCaptions;
if (kTrackTypeTextSubtitle == type) return kDisplayTextSubtitle;
if (kTrackTypeRawText == type) return kDisplayRawTextSubtitle;
return 0;
}
static const int toTrackType(int type)
{
if (kDisplayCC608 == type) return kTrackTypeCC608;
if (kDisplayCC708 == type) return kTrackTypeCC708;
if (kDisplayAVSubtitle == type) return kTrackTypeSubtitle;
if (kDisplayTeletextCaptions == type) return kTrackTypeTeletextCaptions;
if (kDisplayTextSubtitle == type) return kTrackTypeTextSubtitle;
if (kDisplayRawTextSubtitle == type) return kTrackTypeRawText;
return 0;
}
MythPlayer::MythPlayer(bool muted)
: decoder(NULL), decoder_change_lock(QMutex::Recursive),
videoOutput(NULL), player_ctx(NULL),
decoderThread(NULL), playerThread(NULL),
playerTimer(NULL),
no_hardware_decoders(false),
// Window stuff
parentWidget(NULL), embedid(0),
embx(-1), emby(-1), embw(-1), embh(-1),
// State
decoderPaused(false), pauseDecoder(false), unpauseDecoder(false),
killdecoder(false), decoderSeek(-1), decodeOneFrame(false),
needNewPauseFrame(false),
bufferPaused(false), videoPaused(false),
allpaused(false), playing(false),
eof(false),
m_double_framerate(false), m_double_process(false),
m_can_double(false), m_deint_possible(true),
livetv(false),
watchingrecording(false), using_null_videoout(false),
transcoding(false),
hasFullPositionMap(false), limitKeyRepeat(false),
errorMsg(QString::null), errorType(kError_None),
// Chapter stuff
jumpchapter(0),
// Bookmark stuff
bookmarkseek(0),
// Seek
fftime(0), exactseeks(false),
// Playback misc.
videobuf_retries(0), framesPlayed(0),
totalFrames(0), totalLength(0),
totalDuration(0),
rewindtime(0),
// Input Video Attributes
video_disp_dim(0,0), video_dim(0,0),
video_frame_rate(29.97f), video_aspect(4.0f / 3.0f),
forced_video_aspect(-1),
m_scan(kScan_Interlaced), m_scan_locked(false),
m_scan_tracker(0), m_scan_initialized(false),
keyframedist(30), noVideoTracks(false),
// Prebuffering
buffering(false),
// General Caption/Teletext/Subtitle support
textDisplayMode(kDisplayNone),
prevTextDisplayMode(kDisplayNone),
// Support for analog captions and teletext
vbimode(VBIMode::None),
ttPageNum(0x888),
// Support for captions, teletext, etc. decoded by libav
textDesired(false), enableCaptions(false), disableCaptions(false),
// CC608/708
db_prefer708(true), cc608(this), cc708(this),
// MHEG/MHI Interactive TV visible in OSD
itvVisible(false),
interactiveTV(NULL),
itvEnabled(false),
// OSD stuff
osd(NULL), reinit_osd(false), osdLock(QMutex::Recursive),
// Audio
audio(this, muted),
// Picture-in-Picture stuff
pip_active(false), pip_visible(true),
// Filters
videoFiltersForProgram(""), videoFiltersOverride(""),
postfilt_width(0), postfilt_height(0),
videoFilters(NULL), FiltMan(new FilterManager()),
forcePositionMapSync(false), pausedBeforeEdit(false),
speedBeforeEdit(1.0f),
// Playback (output) speed control
decoder_lock(QMutex::Recursive),
next_play_speed(1.0f), next_normal_speed(true),
play_speed(1.0f), normal_speed(true),
frame_interval((int)(1000000.0f / 30)), m_frame_interval(0),
ffrew_skip(1),ffrew_adjust(0),
// Audio and video synchronization stuff
videosync(NULL), avsync_delay(0),
avsync_adjustment(0), avsync_avg(0),
refreshrate(0),
lastsync(false), repeat_delay(0),
disp_timecode(0),
// Time Code stuff
prevtc(0), prevrp(0),
// LiveTVChain stuff
m_tv(NULL), isDummy(false),
// Debugging variables
output_jmeter(NULL)
{
playerThread = QThread::currentThread();
// Playback (output) zoom control
detect_letter_box = new DetectLetterbox(this);
vbimode = VBIMode::Parse(gCoreContext->GetSetting("VbiFormat"));
decode_extra_audio = gCoreContext->GetNumSetting("DecodeExtraAudio", 0);
itvEnabled = gCoreContext->GetNumSetting("EnableMHEG", 0);
db_prefer708 = gCoreContext->GetNumSetting("Prefer708Captions", 1);
bzero(&tc_lastval, sizeof(tc_lastval));
bzero(&tc_wrap, sizeof(tc_wrap));
tc_wrap[TC_AUDIO] = gCoreContext->GetNumSetting("AudioSyncOffset", 0);
// Get VBI page number
QString mypage = gCoreContext->GetSetting("VBIpageNr", "888");
bool valid = false;
uint tmp = mypage.toInt(&valid, 16);
ttPageNum = (valid) ? tmp : ttPageNum;
cc608.SetTTPageNum(ttPageNum);
}
MythPlayer::~MythPlayer(void)
{
QMutexLocker lk1(&osdLock);
QMutexLocker lk2(&vidExitLock);
QMutexLocker lk3(&videofiltersLock);
if (osd)
{
delete osd;
osd = NULL;
}
SetDecoder(NULL);
if (decoderThread)
{
delete decoderThread;
decoderThread = NULL;
}
if (playerTimer)
{
delete playerTimer;
playerTimer = NULL;
}
if (interactiveTV)
{
delete interactiveTV;
interactiveTV = NULL;
}
if (FiltMan)
{
delete FiltMan;
FiltMan = NULL;
}
if (videoFilters)
{
delete videoFilters;
videoFilters = NULL;
}
if (videosync)
{
delete videosync;
videosync = NULL;
}
if (videoOutput)
{
delete videoOutput;
videoOutput = NULL;
}
if (output_jmeter)
{
delete output_jmeter;
output_jmeter = NULL;
}
if (detect_letter_box)
{
delete detect_letter_box;
detect_letter_box = NULL;
}
}
void MythPlayer::SetWatchingRecording(bool mode)
{
QMutexLocker locker(&decoder_change_lock);
watchingrecording = mode;
if (decoder)
decoder->setWatchingRecording(mode);
}
void MythPlayer::PauseBuffer(void)
{
bufferPauseLock.lock();
if (player_ctx->buffer)
{
player_ctx->buffer->Pause();
player_ctx->buffer->WaitForPause();
}
bufferPaused = true;
bufferPauseLock.unlock();
}
void MythPlayer::UnpauseBuffer(void)
{
bufferPauseLock.lock();
if (player_ctx->buffer)
player_ctx->buffer->Unpause();
bufferPaused = false;
bufferPauseLock.unlock();
}
bool MythPlayer::Pause(void)
{
if (!pauseLock.tryLock(100))
{
VERBOSE(VB_PLAYBACK, LOC + "Waited 100ms to get pause lock.");
DecoderPauseCheck();
}
bool already_paused = allpaused;
if (already_paused)
{
pauseLock.unlock();
return already_paused;
}
next_play_speed = 0.0;
next_normal_speed = false;
PauseDecoder();
PauseVideo();
audio.Pause(true);
PauseBuffer();
allpaused = decoderPaused && videoPaused && bufferPaused;
{
QMutexLocker locker(&decoder_change_lock);
if (using_null_videoout && decoder)
decoder->UpdateFramesPlayed();
else if (videoOutput && !using_null_videoout)
framesPlayed = videoOutput->GetFramesPlayed();
}
pauseLock.unlock();
return already_paused;
}
bool MythPlayer::Play(float speed, bool normal, bool unpauseaudio)
{
pauseLock.lock();
VERBOSE(VB_PLAYBACK, LOC +
QString("Play(%1, normal %2, unpause audio %3)")
.arg(speed,5,'f',1).arg(normal).arg(unpauseaudio));
if (deleteMap.IsEditing())
{
VERBOSE(VB_IMPORTANT, LOC + "Ignoring Play(), in edit mode.");
pauseLock.unlock();
return false;
}
UnpauseBuffer();
if (unpauseaudio)
audio.Pause(false);
UnpauseVideo();
UnpauseDecoder();
allpaused = false;
next_play_speed = speed;
next_normal_speed = normal;
pauseLock.unlock();
return true;
}
void MythPlayer::PauseVideo(void)
{
videoPauseLock.lock();
needNewPauseFrame = true;
videoPaused = true;
videoPauseLock.unlock();
}
void MythPlayer::UnpauseVideo(void)
{
videoPauseLock.lock();
videoPaused = false;
if (videoOutput)
videoOutput->ExposeEvent();
videoPauseLock.unlock();
}
void MythPlayer::SetPlayingInfo(const ProgramInfo &pginfo)
{
assert(player_ctx);
if (!player_ctx)
return;
player_ctx->LockPlayingInfo(__FILE__, __LINE__);
player_ctx->SetPlayingInfo(&pginfo);
player_ctx->UnlockPlayingInfo(__FILE__, __LINE__);
SetVideoFilters("");
InitFilters();
}
void MythPlayer::SetPlaying(bool is_playing)
{
QMutexLocker locker(&playingLock);
playing = is_playing;
playingWaitCond.wakeAll();
}
bool MythPlayer::IsPlaying(uint wait_in_msec, bool wait_for) const
{
QMutexLocker locker(&playingLock);
if (!wait_in_msec)
return playing;
MythTimer t;
t.start();
while ((wait_for != playing) && ((uint)t.elapsed() < wait_in_msec))
{
playingWaitCond.wait(
&playingLock, max(0,(int)wait_in_msec - t.elapsed()));
}
return playing;
}
bool MythPlayer::InitVideo(void)
{
assert(player_ctx);
if (!player_ctx)
return false;
PIPState pipState = player_ctx->GetPIPState();
if (using_null_videoout && decoder)
{
MythCodecID codec = decoder->GetVideoCodecID();
videoOutput = new VideoOutputNull();
if (!videoOutput->Init(video_disp_dim.width(), video_disp_dim.height(),
video_aspect, 0, 0, 0, 0, 0, codec, 0))
{
VERBOSE(VB_IMPORTANT, LOC_ERR +
"Unable to create null video out");
SetErrored(QObject::tr("Unable to create null video out"));
return false;
}
}
else
{
QWidget *widget = parentWidget;
if (!widget)
{
MythMainWindow *window = GetMythMainWindow();
widget = window->findChild<QWidget*>("video playback window");
if (!widget)
{
VERBOSE(VB_IMPORTANT, "Couldn't find 'tv playback' widget");
widget = window->currentWidget();
}
}
if (!widget)
{
VERBOSE(VB_IMPORTANT, "Couldn't find 'tv playback' widget. "
"Current widget doesn't exist. Exiting..");
SetErrored(QObject::tr("'tv playback' widget missing."));
return false;
}
QRect display_rect;
if (pipState == kPIPStandAlone)
display_rect = QRect(embx, emby, embw, embh);
else
display_rect = QRect(0, 0, widget->width(), widget->height());
if (decoder)
{
videoOutput = VideoOutput::Create(
decoder->GetCodecDecoderName(),
decoder->GetVideoCodecID(),
decoder->GetVideoCodecPrivate(),
pipState,
video_disp_dim, video_aspect,
widget->winId(), display_rect, video_frame_rate,
0 /*embedid*/);
}
if (videoOutput)
{
videoOutput->SetVideoScalingAllowed(true);
CheckExtraAudioDecode();
}
}
if (!videoOutput)
{
VERBOSE(VB_IMPORTANT, LOC_ERR +
"Couldn't create VideoOutput instance. Exiting..");
SetErrored(QObject::tr("Failed to initialize video output"));
return false;
}
if (embedid > 0 && pipState == kPIPOff)
{
videoOutput->EmbedInWidget(embx, emby, embw, embh);
}
InitFilters();
return true;
}
void MythPlayer::CheckExtraAudioDecode(void)
{
if (using_null_videoout)
return;
bool force = false;
if (videoOutput && videoOutput->NeedExtraAudioDecode())
{
VERBOSE(VB_IMPORTANT, LOC +
"Forcing decode extra audio option on"
" (Video method requires it).");
force = true;
}
if (decoder)
decoder->SetLowBuffers(decode_extra_audio || force);
}
void MythPlayer::ReinitOSD(void)
{
if (videoOutput && !using_null_videoout)
{
osdLock.lock();
if (QThread::currentThread() != (QThread*)playerThread)
{
reinit_osd = true;
osdLock.unlock();
return;
}
QRect visible, total;
float aspect, scaling;
if (osd)
{
osd->SetPainter(videoOutput->GetOSDPainter());
videoOutput->GetOSDBounds(total, visible, aspect,
scaling, 1.0f);
if (osd->Bounds() != visible)
{
uint old = textDisplayMode;
ToggleCaptions(old);
osd->Reinit(visible, aspect);
EnableCaptions(old, false);
}
}
#ifdef USING_MHEG
if (GetInteractiveTV())
{
QMutexLocker locker(&itvLock);
total = videoOutput->GetMHEGBounds();
interactiveTV->Reinit(total);
itvVisible = false;
}
#endif // USING_MHEG
reinit_osd = false;
osdLock.unlock();
}
}
void MythPlayer::ReinitVideo(void)
{
if (!videoOutput->IsPreferredRenderer(video_disp_dim))
{
VERBOSE(VB_PLAYBACK, LOC + QString("Need to switch video renderer."));
SetErrored(QObject::tr("Need to switch video renderer."));
errorType |= kError_Switch_Renderer;
return;
}
bool aspect_only = false;
{
QMutexLocker locker1(&osdLock);
QMutexLocker locker2(&vidExitLock);
QMutexLocker locker3(&videofiltersLock);
videoOutput->SetVideoFrameRate(video_frame_rate);
float aspect = (forced_video_aspect > 0) ? forced_video_aspect :
video_aspect;
if (!videoOutput->InputChanged(video_disp_dim, aspect,
decoder->GetVideoCodecID(),
decoder->GetVideoCodecPrivate(),
aspect_only))
{
VERBOSE(VB_IMPORTANT, LOC_ERR +
"Failed to Reinitialize Video. Exiting..");
SetErrored(QObject::tr("Failed to reinitialize video output"));
return;
}
if (osd)
osd->SetPainter(videoOutput->GetOSDPainter());
ReinitOSD();
}
if (!aspect_only)
{
CheckExtraAudioDecode();
ClearAfterSeek();
InitFilters();
}
if (textDisplayMode)
{
DisableCaptions(textDisplayMode, false);
SetCaptionsEnabled(true, false);
}
}
static inline QString toQString(FrameScanType scan) {
switch (scan) {
case kScan_Ignore: return QString("Ignore Scan");
case kScan_Detect: return QString("Detect Scan");
case kScan_Interlaced: return QString("Interlaced Scan");
case kScan_Progressive: return QString("Progressive Scan");
default: return QString("Unknown Scan");
}
}
FrameScanType MythPlayer::detectInterlace(FrameScanType newScan,
FrameScanType scan,
float fps, int video_height)
{
QString dbg = QString("detectInterlace(") + toQString(newScan) +
QString(", ") + toQString(scan) + QString(", ") + QString("%1").arg(fps) +
QString(", ") + QString("%1").arg(video_height) + QString(") ->");
if (kScan_Ignore != newScan || kScan_Detect == scan)
{
// The scanning mode should be decoded from the stream, but if it
// isn't, we have to guess.
scan = kScan_Interlaced; // default to interlaced
if (720 == video_height) // ATSC 720p
scan = kScan_Progressive;
else if (fps > 45) // software deinterlacing
scan = kScan_Progressive;
if (kScan_Detect != newScan)
scan = newScan;
};
VERBOSE(VB_PLAYBACK, LOC + dbg+toQString(scan));
return scan;
}
void MythPlayer::SetKeyframeDistance(int keyframedistance)
{
keyframedist = (keyframedistance > 0) ? keyframedistance : keyframedist;
}
/** \fn MythPlayer::FallbackDeint(void)
* \brief Fallback to non-frame-rate-doubling deinterlacing method.
*/
void MythPlayer::FallbackDeint(void)
{
m_double_framerate = false;
m_double_process = false;
if (videoOutput)
videoOutput->FallbackDeint();
}
void MythPlayer::AutoDeint(VideoFrame *frame, bool allow_lock)
{
if (!frame || m_scan_locked)
return;
if (frame->interlaced_frame)
{
if (m_scan_tracker < 0)
{
VERBOSE(VB_PLAYBACK, LOC + "interlaced frame seen after "
<< abs(m_scan_tracker) << " progressive frames");
m_scan_tracker = 2;
if (allow_lock)
{
VERBOSE(VB_PLAYBACK, LOC + "Locking scan to Interlaced.");
SetScanType(kScan_Interlaced);
return;
}
}
m_scan_tracker++;
}
else
{
if (m_scan_tracker > 0)
{
VERBOSE(VB_PLAYBACK, LOC + "progressive frame seen after "
<< m_scan_tracker << " interlaced frames");
m_scan_tracker = 0;
}
m_scan_tracker--;
}
if ((m_scan_tracker % 400) == 0)
{
QString type = (m_scan_tracker < 0) ? "progressive" : "interlaced";
VERBOSE(VB_PLAYBACK, LOC + QString("%1 %2 frames seen.")
.arg(abs(m_scan_tracker)).arg(type));
}
int min_count = !allow_lock ? 0 : 2;
if (abs(m_scan_tracker) <= min_count)
return;
SetScanType((m_scan_tracker > min_count) ? kScan_Interlaced : kScan_Progressive);
m_scan_locked = false;
}
void MythPlayer::SetScanType(FrameScanType scan)
{
QMutexLocker locker(&videofiltersLock);
if (!videoOutput || !videosync)
return; // hopefully this will be called again later...
if (m_scan_initialized &&
m_scan == scan &&
m_frame_interval == frame_interval)
return;
m_scan_locked = (scan != kScan_Detect);
m_scan_initialized = true;
m_frame_interval = frame_interval;
bool interlaced = is_interlaced(scan);
if (interlaced && !m_deint_possible)
{
m_scan = scan;
return;
}
if (interlaced)
{
m_deint_possible = videoOutput->SetDeinterlacingEnabled(true);
if (!m_deint_possible)
{
VERBOSE(VB_IMPORTANT, LOC + "Failed to enable deinterlacing");
m_scan = scan;
return;
}
if (videoOutput->NeedsDoubleFramerate())
{
m_double_framerate = true;
m_can_double = (frame_interval / 2 > videosync->getRefreshInterval() * 0.995);
if (!m_can_double)
{
VERBOSE(VB_IMPORTANT, LOC + "Video sync method can't support "
"double framerate (refresh rate too low for 2x deint)");
FallbackDeint();
}
}
m_double_process = videoOutput->IsExtraProcessingRequired();
VERBOSE(VB_PLAYBACK, LOC + "Enabled deinterlacing");
}
else
{
if (kScan_Progressive == scan)
{
m_double_process = false;
m_double_framerate = false;
videoOutput->SetDeinterlacingEnabled(false);
VERBOSE(VB_PLAYBACK, LOC + "Disabled deinterlacing");
}
}
m_scan = scan;
}
void MythPlayer::SetVideoParams(int width, int height, double fps,
int keyframedistance, float aspect,
FrameScanType scan, bool video_codec_changed)
{
if (width == 0 || height == 0 || isnan(aspect) || isnan(fps))
return;
if ((video_disp_dim == QSize(width, height)) &&
(video_aspect == aspect) && (video_frame_rate == fps ) &&
((keyframedistance <= 0) ||
((uint64_t)keyframedistance == keyframedist)) &&
!video_codec_changed)
{
return;
}
if ((width > 0) && (height > 0))
{
video_dim = QSize((width + 15) & ~0xf, (height + 15) & ~0xf);
video_disp_dim = QSize(width, height);
}
video_aspect = (aspect > 0.0f) ? aspect : video_aspect;
keyframedist = (keyframedistance > 0) ? keyframedistance : keyframedist;
if (fps > 0.0f && fps < 121.0f)
{
video_frame_rate = fps;
float temp_speed = (play_speed == 0.0f) ?
audio.GetStretchFactor() : play_speed;
frame_interval = (int)(1000000.0f / video_frame_rate / temp_speed);
}
if (videoOutput)
ReinitVideo();
if (IsErrored())
return;
SetScanType(detectInterlace(scan, m_scan, video_frame_rate,
video_disp_dim.height()));
m_scan_locked = false;
m_scan_tracker = (m_scan == kScan_Interlaced) ? 2 : 0;
}
void MythPlayer::SetFileLength(int total, int frames)
{
totalLength = total;
totalFrames = frames;
}
void MythPlayer::SetDuration(int duration)
{
totalDuration = duration;
}
void MythPlayer::OpenDummy(void)
{
isDummy = true;
float displayAspect =
gCoreContext->GetFloatSettingOnHost("XineramaMonitorAspectRatio",
gCoreContext->GetHostName(), 1.3333);
if (!videoOutput)
{
SetVideoParams(720, 576, 25.00, 15, displayAspect);
}
player_ctx->LockPlayingInfo(__FILE__, __LINE__);
DummyDecoder *dec = new DummyDecoder(this, *(player_ctx->playingInfo));
player_ctx->UnlockPlayingInfo(__FILE__, __LINE__);
SetDecoder(dec);
}
void MythPlayer::CreateDecoder(char *testbuf, int testreadsize,
bool allow_libmpeg2, bool no_accel)
{
if (NuppelDecoder::CanHandle(testbuf, testreadsize))
SetDecoder(new NuppelDecoder(this, *player_ctx->playingInfo));
else if (AvFormatDecoder::CanHandle(testbuf,
player_ctx->buffer->GetFilename(),
testreadsize))
{
SetDecoder(new AvFormatDecoder(this, *player_ctx->playingInfo,
using_null_videoout,
allow_libmpeg2, no_accel,
player_ctx->GetSpecialDecode()));
}
}
int MythPlayer::OpenFile(uint retries, bool allow_libmpeg2)
{
isDummy = false;
assert(player_ctx);
if (!player_ctx || !player_ctx->buffer)
return -1;
livetv = player_ctx->tvchain;
if (player_ctx->tvchain &&
player_ctx->tvchain->GetCardType(player_ctx->tvchain->GetCurPos()) ==
"DUMMY")
{
OpenDummy();
return 0;
}
player_ctx->buffer->Start();
/// OSX has a small stack, so we put this buffer on the heap instead.
char *testbuf = new char[kDecoderProbeBufferSize];
UnpauseBuffer();
// delete any pre-existing recorder
SetDecoder(NULL);
int testreadsize = 2048;
MythTimer bigTimer; bigTimer.start();
int timeout = (retries + 1) * 500;
while (testreadsize <= kDecoderProbeBufferSize)
{
MythTimer peekTimer; peekTimer.start();
while (player_ctx->buffer->Peek(testbuf, testreadsize) != testreadsize)
{
if (peekTimer.elapsed() > 1000 || bigTimer.elapsed() > timeout)
{
VERBOSE(VB_IMPORTANT, LOC_ERR +
QString("OpenFile(): Could not read "
"first %1 bytes of '%2'")
.arg(testreadsize)
.arg(player_ctx->buffer->GetFilename()));
delete[] testbuf;
return -1;
}
VERBOSE(VB_IMPORTANT, LOC_WARN + "OpenFile() waiting on data");
usleep(50 * 1000);
}
player_ctx->LockPlayingInfo(__FILE__, __LINE__);
bool noaccel = no_hardware_decoders ||
(player_ctx->IsPBP() && !player_ctx->IsPrimaryPBP());
CreateDecoder(testbuf, testreadsize, allow_libmpeg2, noaccel);
player_ctx->UnlockPlayingInfo(__FILE__, __LINE__);
if (decoder || (bigTimer.elapsed() > timeout))
break;
testreadsize <<= 1;
}
if (!decoder)
{
VERBOSE(VB_IMPORTANT, LOC_ERR +
QString("Couldn't find an A/V decoder for: '%1'")
.arg(player_ctx->buffer->GetFilename()));