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tv.cpp
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tv.cpp
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <qsqldatabase.h>
#include "XJ.h"
#include "tv.h"
#include "osd.h"
char theprefix[] = "/usr/local";
void *SpawnEncode(void *param)
{
NuppelVideoRecorder *nvr = (NuppelVideoRecorder *)param;
nvr->StartRecording();
return NULL;
}
void *SpawnDecode(void *param)
{
NuppelVideoPlayer *nvp = (NuppelVideoPlayer *)param;
nvp->StartPlaying();
return NULL;
}
TV::TV(const QString &startchannel)
{
settings = new Settings();
settings->LoadSettingsFiles("settings.txt", theprefix);
settings->LoadSettingsFiles("mysql.txt", theprefix);
db_conn = NULL;
ConnectDB();
channel = new Channel(this, settings->GetSetting("V4LDevice"));
channel->Open();
channel->SetFormat(settings->GetSetting("TVFormat"));
channel->SetFreqTable(settings->GetSetting("FreqTable"));
channel->SetChannelByString(startchannel);
channel->Close();
fftime = settings->GetNumSetting("FastForwardAmount");
if (fftime <= 0)
fftime = 5;
rewtime = settings->GetNumSetting("RewindAmount");
if (rewtime <= 0)
rewtime = 5;
nvr = NULL;
nvp = NULL;
prbuffer = rbuffer = NULL;
menurunning = false;
internalState = nextState = kState_None;
runMainLoop = false;
changeState = false;
watchingLiveTV = false;
pthread_create(&event, NULL, EventThread, this);
while (!runMainLoop)
usleep(50);
curRecording = NULL;
tvtorecording = 1;
}
TV::~TV(void)
{
runMainLoop = false;
pthread_join(event, NULL);
if (channel)
delete channel;
if (settings)
delete settings;
if (rbuffer)
delete rbuffer;
if (prbuffer && prbuffer != rbuffer)
delete prbuffer;
if (nvp)
delete nvp;
if (nvr)
delete nvr;
if (db_conn)
DisconnectDB();
}
QString TV::GetInstallPrefix(void)
{
return QString(theprefix);
}
void TV::LiveTV(void)
{
if (internalState == kState_RecordingOnly)
{
char cmdline[4096];
sprintf(cmdline, "mythdialog \"MythTV is already recording '%s' on "
"channel %s. Do you want to:\" \"Stop recording and "
"watch TV\" \"Watch the in-progress recording\" "
"\"Cancel\"", curRecording->title.ascii(),
curRecording->channum.ascii());
int result = system(cmdline);
if (result > 0)
result = WEXITSTATUS(result);
if (result == 1)
{
nextState = kState_WatchingLiveTV;
changeState = true;
}
else if (result == 2)
{
nextState = kState_WatchingRecording;
inputFilename = outputFilename;
changeState = true;
}
}
else if (internalState == kState_None)
{
nextState = kState_WatchingLiveTV;
changeState = true;
}
}
int TV::AllowRecording(ProgramInfo *rcinfo, int timeuntil)
{
if (internalState != kState_WatchingLiveTV)
{
return 1;
}
QString message = "MythTV wants to record \"";
message += rcinfo->title + "\" on Channel " + rcinfo->channum;
message += " in %d seconds. Do you want to:";
QString option1 = "Record and watch while it records";
QString option2 = "Let it record and go back to the Main Menu";
QString option3 = "Don't let it record, I want to watch TV";
osd->SetDialogBox(message, option1, option2, option3, timeuntil);
while (osd->DialogShowing())
usleep(50);
int result = osd->GetDialogSelection();
tvtorecording = result;
return result;
}
void TV::StartRecording(ProgramInfo *rcinfo)
{
QString recprefix = settings->GetSetting("RecordFilePrefix");
if (internalState == kState_None ||
internalState == kState_WatchingPreRecorded)
{
outputFilename = rcinfo->GetRecordFilename(recprefix);
recordEndTime = rcinfo->endts;
curRecording = rcinfo;
if (internalState == kState_None)
nextState = kState_RecordingOnly;
else if (internalState == kState_WatchingPreRecorded)
nextState = kState_WatchingOtherRecording;
changeState = true;
}
else if (internalState == kState_WatchingLiveTV)
{
if (tvtorecording == 2)
{
nextState = kState_None;
changeState = true;
while (GetState() != kState_None)
usleep(50);
outputFilename = rcinfo->GetRecordFilename(recprefix);
recordEndTime = rcinfo->endts;
curRecording = rcinfo;
nextState = kState_RecordingOnly;
changeState = true;
}
else if (tvtorecording == 1)
{
outputFilename = rcinfo->GetRecordFilename(recprefix);
recordEndTime = rcinfo->endts;
curRecording = rcinfo;
nextState = kState_WatchingRecording;
changeState = true;
}
tvtorecording = 1;
}
}
void TV::StopRecording(void)
{
if (StateIsRecording(internalState))
{
nextState = RemoveRecording(internalState);
changeState = true;
}
}
void TV::Playback(ProgramInfo *rcinfo)
{
if (internalState == kState_None || internalState == kState_RecordingOnly)
{
QString recprefix = settings->GetSetting("RecordFilePrefix");
inputFilename = rcinfo->GetRecordFilename(recprefix);
playbackLen = rcinfo->CalculateLength();
if (internalState == kState_None)
nextState = kState_WatchingPreRecorded;
else if (internalState == kState_RecordingOnly)
{
if (inputFilename == outputFilename)
nextState = kState_WatchingRecording;
else
nextState = kState_WatchingOtherRecording;
}
changeState = true;
}
}
void TV::StateToString(TVState state, QString &statestr)
{
switch (state) {
case kState_None: statestr = "None"; break;
case kState_WatchingLiveTV: statestr = "WatchingLiveTV"; break;
case kState_WatchingPreRecorded: statestr = "WatchingPreRecorded";
break;
case kState_WatchingRecording: statestr = "WatchingRecording"; break;
case kState_WatchingOtherRecording: statestr = "WatchingOtherRecording";
break;
case kState_RecordingOnly: statestr = "RecordingOnly"; break;
default: statestr = "Unknown"; break;
}
}
bool TV::StateIsRecording(TVState state)
{
bool retval = false;
if (state == kState_RecordingOnly ||
state == kState_WatchingRecording ||
state == kState_WatchingOtherRecording)
{
retval = true;
}
return retval;
}
bool TV::StateIsPlaying(TVState state)
{
bool retval = false;
if (state == kState_WatchingPreRecorded ||
state == kState_WatchingRecording ||
state == kState_WatchingOtherRecording)
{
retval = true;
}
return retval;
}
TVState TV::RemoveRecording(TVState state)
{
if (StateIsRecording(state))
{
if (state == kState_RecordingOnly)
return kState_None;
return kState_WatchingPreRecorded;
}
return kState_Error;
}
TVState TV::RemovePlaying(TVState state)
{
if (StateIsPlaying(state))
{
if (state == kState_WatchingPreRecorded)
return kState_None;
return kState_RecordingOnly;
}
return kState_Error;
}
void TV::WriteRecordedRecord(void)
{
if (!curRecording)
return;
curRecording->WriteRecordedToDB(db_conn);
delete curRecording;
curRecording = NULL;
}
void TV::HandleStateChange(void)
{
bool changed = false;
bool startPlayer = false;
bool startRecorder = false;
bool closePlayer = false;
bool closeRecorder = false;
bool killRecordingFile = false;
bool sleepBetween = false;
QString statename;
StateToString(nextState, statename);
QString origname;
StateToString(internalState, origname);
if (nextState == kState_Error)
{
printf("ERROR: Attempting to set to an error state.\n");
exit(-1);
}
if (internalState == kState_None && nextState == kState_WatchingLiveTV)
{
long long filesize = settings->GetNumSetting("BufferSize");
filesize = filesize * 1024 * 1024 * 1024;
long long smudge = settings->GetNumSetting("MaxBufferFill");
smudge = smudge * 1024 * 1024;
rbuffer = new RingBuffer(settings->GetSetting("BufferName"), filesize,
smudge);
prbuffer = rbuffer;
internalState = nextState;
changed = true;
startPlayer = startRecorder = true;
watchingLiveTV = true;
sleepBetween = true;
}
else if (internalState == kState_WatchingLiveTV &&
nextState == kState_None)
{
closePlayer = true;
closeRecorder = true;
internalState = nextState;
changed = true;
watchingLiveTV = false;
}
else if ((internalState == kState_None &&
nextState == kState_RecordingOnly) ||
(internalState == kState_WatchingPreRecorded &&
nextState == kState_WatchingOtherRecording))
{
channel->Open();
channel->SetChannelByString(curRecording->channum);
channel->Close();
rbuffer = new RingBuffer(outputFilename, true);
internalState = nextState;
nextState = kState_None;
changed = true;
startRecorder = true;
}
else if ((internalState == kState_RecordingOnly &&
nextState == kState_None) ||
(internalState == kState_WatchingRecording &&
nextState == kState_WatchingPreRecorded) ||
(internalState == kState_WatchingOtherRecording &&
nextState == kState_WatchingPreRecorded))
{
closeRecorder = true;
internalState = nextState;
changed = true;
watchingLiveTV = false;
}
else if ((internalState == kState_None &&
nextState == kState_WatchingPreRecorded) ||
(internalState == kState_RecordingOnly &&
nextState == kState_WatchingOtherRecording) ||
(internalState == kState_RecordingOnly &&
nextState == kState_WatchingRecording))
{
prbuffer = new RingBuffer(inputFilename, false);
internalState = nextState;
changed = true;
startPlayer = true;
}
else if ((internalState == kState_WatchingPreRecorded &&
nextState == kState_None) ||
(internalState == kState_WatchingOtherRecording &&
nextState == kState_RecordingOnly) ||
(internalState == kState_WatchingRecording &&
nextState == kState_RecordingOnly))
{
closePlayer = true;
internalState = nextState;
changed = true;
watchingLiveTV = false;
}
else if (internalState == kState_RecordingOnly &&
nextState == kState_WatchingLiveTV)
{
TeardownRecorder(true);
long long filesize = settings->GetNumSetting("BufferSize");
filesize = filesize * 1024 * 1024 * 1024;
long long smudge = settings->GetNumSetting("MaxBufferFill");
smudge = smudge * 1024 * 1024;
rbuffer = new RingBuffer(settings->GetSetting("BufferName"), filesize,
smudge);
prbuffer = rbuffer;
internalState = nextState;
changed = true;
startPlayer = startRecorder = true;
watchingLiveTV = true;
sleepBetween = true;
}
else if (internalState == kState_WatchingLiveTV &&
nextState == kState_WatchingRecording)
{
if (paused)
osd->EndPause();
paused = false;
nvp->Pause();
while (!nvp->GetPause())
usleep(5);
nvr->Pause();
while (!nvr->GetPause())
usleep(5);
rbuffer->Reset();
channel->SetChannelByString(curRecording->channum);
rbuffer->TransitionToFile(outputFilename);
nvr->WriteHeader(true);
nvr->Reset();
nvr->Unpause();
nvp->ResetPlaying();
while (!nvp->ResetYet())
usleep(5);
usleep(300000);
nvp->Unpause();
internalState = nextState;
changed = true;
}
else if ((internalState == kState_WatchingRecording &&
nextState == kState_WatchingLiveTV) ||
(internalState == kState_WatchingPreRecorded &&
nextState == kState_WatchingLiveTV))
{
if (paused)
osd->EndPause();
paused = false;
nvp->Pause();
while (!nvp->GetPause())
usleep(50);
rbuffer->TransitionToRing();
nvp->Unpause();
WriteRecordedRecord();
internalState = nextState;
changed = true;
}
else if (internalState == kState_None &&
nextState == kState_None)
{
changed = true;
}
if (!changed)
{
printf("Unknown state transition: %d to %d\n", internalState,
nextState);
}
else
{
printf("Changing from %s to %s\n", origname.ascii(), statename.ascii());
}
changeState = false;
if (startRecorder)
{
SetupRecorder();
pthread_create(&encode, NULL, SpawnEncode, nvr);
while (!nvr->IsRecording())
usleep(50);
// evil.
channel->SetFd(nvr->GetVideoFd());
frameRate = nvr->GetFrameRate();
}
if (sleepBetween)
usleep(300000);
if (startPlayer)
{
SetupPlayer();
pthread_create(&decode, NULL, SpawnDecode, nvp);
while (!nvp->IsPlaying())
usleep(50);
frameRate = nvp->GetFrameRate();
osd = nvp->GetOSD();
}
if (closeRecorder)
TeardownRecorder(killRecordingFile);
if (closePlayer)
TeardownPlayer();
}
void TV::SetupRecorder(void)
{
if (nvr)
{
printf("Attempting to setup a recorder, but it already exists\n");
return;
}
nvr = new NuppelVideoRecorder();
nvr->SetRingBuffer(rbuffer);
nvr->SetVideoDevice(settings->GetSetting("V4LDevice"));
nvr->SetResolution(settings->GetNumSetting("Width"),
settings->GetNumSetting("Height"));
nvr->SetTVFormat(settings->GetSetting("TVFormat"));
nvr->SetCodec(settings->GetSetting("Codec"));
nvr->SetRTJpegMotionLevels(settings->GetNumSetting("LumaFilter"),
settings->GetNumSetting("ChromaFilter"));
nvr->SetRTJpegQuality(settings->GetNumSetting("Quality"));
nvr->SetMP4TargetBitrate(settings->GetNumSetting("TargetBitrate"));
nvr->SetMP4ScaleBitrate(settings->GetNumSetting("ScaleBitrate"));
nvr->SetMP4Quality(settings->GetNumSetting("MaxQuality"),
settings->GetNumSetting("MinQuality"),
settings->GetNumSetting("QualDiff"));
nvr->SetMP3Quality(settings->GetNumSetting("MP3Quality"));
nvr->SetAudioSampleRate(settings->GetNumSetting("AudioSampleRate"));
nvr->SetAudioDevice(settings->GetSetting("AudioDevice"));
nvr->SetAudioCompression(!settings->GetNumSetting("DontCompressAudio"));
nvr->Initialize();
}
void TV::TeardownRecorder(bool killFile)
{
if (nvr)
{
nvr->StopRecording();
pthread_join(encode, NULL);
delete nvr;
}
nvr = NULL;
if (rbuffer && rbuffer != prbuffer)
{
delete rbuffer;
rbuffer = NULL;
}
if (killFile)
{
unlink(outputFilename.ascii());
if (curRecording)
{
delete curRecording;
curRecording = NULL;
}
}
else if (curRecording)
{
WriteRecordedRecord();
}
}
void TV::SetupPlayer(void)
{
if (nvp)
{
printf("Attempting to setup a player, but it already exists.\n");
return;
}
nvp = new NuppelVideoPlayer();
nvp->SetRingBuffer(prbuffer);
nvp->SetRecorder(nvr);
nvp->SetDeinterlace((bool)settings->GetNumSetting("Deinterlace"));
nvp->SetOSDFontName(settings->GetSetting("OSDFont"), theprefix);
nvp->SetOSDThemeName(settings->GetSetting("OSDTheme"));
nvp->SetAudioSampleRate(settings->GetNumSetting("AudioSampleRate"));
nvp->SetAudioDevice(settings->GetSetting("AudioDevice"));
nvp->SetLength(playbackLen);
osd_display_time = settings->GetNumSetting("OSDDisplayTime");
osd = NULL;
}
void TV::TeardownPlayer(void)
{
if (nvp)
{
prbuffer->StopReads();
nvp->StopPlaying();
pthread_join(decode, NULL);
delete nvp;
}
paused = false;
nvp = NULL;
osd = NULL;
if (prbuffer && prbuffer != rbuffer)
{
delete prbuffer;
prbuffer = NULL;
}
if (prbuffer && prbuffer == rbuffer)
{
if (internalState == kState_RecordingOnly)
{
prbuffer = NULL;
}
else
{
delete prbuffer;
prbuffer = rbuffer = NULL;
}
}
}
char *TV::GetScreenGrab(ProgramInfo *rcinfo, int secondsin, int &bufferlen,
int &video_width, int &video_height)
{
QString recprefix = settings->GetSetting("RecordFilePrefix");
QString filename = rcinfo->GetRecordFilename(recprefix);
RingBuffer *tmprbuf = new RingBuffer(filename, false);
NuppelVideoPlayer *nupvidplay = new NuppelVideoPlayer();
nupvidplay->SetRingBuffer(tmprbuf);
nupvidplay->SetAudioSampleRate(settings->GetNumSetting("AudioSampleRate"));
char *retbuf = nupvidplay->GetScreenGrab(secondsin, bufferlen, video_width,
video_height);
delete nupvidplay;
delete tmprbuf;
return retbuf;
}
void *TV::EventThread(void *param)
{
TV *thetv = (TV *)param;
thetv->RunTV();
return NULL;
}
void TV::RunTV(void)
{
frameRate = 29.97; // the default's not used, but give it a default anyway.
paused = false;
int keypressed;
channelqueued = false;
channelKeys[0] = channelKeys[1] = channelKeys[2] = ' ';
channelKeys[3] = 0;
channelkeysstored = 0;
runMainLoop = true;
exitPlayer = false;
while (runMainLoop)
{
if (changeState)
HandleStateChange();
usleep(1000);
if ((keypressed = XJ_CheckEvents()))
{
ProcessKeypress(keypressed);
}
if (StateIsRecording(internalState))
{
if (QDateTime::currentDateTime() > recordEndTime)
{
if (watchingLiveTV)
{
nextState = kState_WatchingLiveTV;
changeState = true;
}
else
{
nextState = RemoveRecording(internalState);
changeState = true;
}
}
}
if (StateIsPlaying(internalState))
{
if (!nvp->IsPlaying())
{
nextState = RemovePlaying(internalState);
changeState = true;
}
}
if (exitPlayer)
{
if (internalState == kState_WatchingLiveTV)
{
nextState = kState_None;
changeState = true;
}
else if (StateIsPlaying(internalState))
{
nextState = RemovePlaying(internalState);
changeState = true;
}
exitPlayer = false;
}
if (internalState == kState_WatchingLiveTV)
{
if (paused)
{
QString desc = "";
int pos = calcSliderPos(0, desc);
osd->UpdatePause(pos, desc);
//fprintf(stderr, "\r Paused: %f seconds behind realtime (%f%% buffer left)", (float)(nvr->GetFramesWritten() - nvp->GetFramesPlayed()) / frameRate, (float)rbuffer->GetFreeSpace() / (float)rbuffer->GetFileSize() * 100.0);
}
else
{
//fprintf(stderr, "\r ");
//fprintf(stderr, "\r Playing: %f seconds behind realtime", (float)(nvr->GetFramesWritten() - nvp->GetFramesPlayed()) / frameRate);
}
if (channelqueued && nvp->GetOSD() && !osd->Visible())
{
ChannelCommit();
}
}
}
nextState = kState_None;
HandleStateChange();
}
void TV::ProcessKeypress(int keypressed)
{
if (nvp->GetOSD() && osd->DialogShowing())
{
switch (keypressed)
{
case wsUp: osd->DialogUp(); break;
case wsDown: osd->DialogDown(); break;
case ' ': case wsEnter: case wsReturn: osd->TurnOff(); break;
default: break;
}
return;
}
switch (keypressed)
{
case 's': case 'S':
case 'p': case 'P': DoPause(); break;
case wsRight: case 'd': case 'D': DoFF(); break;
case wsLeft: case 'a': case 'A': DoRew(); break;
case wsEscape: exitPlayer = true; break;
case 'e': case 'E': nvp->ToggleEdit(); break;
case ' ': nvp->AdvanceOneFrame(); break;
default: break;
}
if (internalState == kState_WatchingLiveTV)
{
switch (keypressed)
{
case 'i': case 'I': UpdateOSD(); break;
case wsUp: ChangeChannel(true); break;
case wsDown: ChangeChannel(false); break;
case 'c': case 'C': ToggleInputs(); break;
case wsZero: case wsOne: case wsTwo: case wsThree: case wsFour:
case wsFive: case wsSix: case wsSeven: case wsEight:
case wsNine: case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
ChannelKey(keypressed); break;
case wsEnter: ChannelCommit(); break;
case 'M': case 'm': LoadMenu(); break;
default: break;
}
}
}
int TV::calcSliderPos(int offset, QString &desc)
{
float ret;
char text[512];
if (internalState == kState_WatchingLiveTV)
{
ret = (float)rbuffer->GetFreeSpace() /
((float)rbuffer->GetFileSize() - rbuffer->GetSmudgeSize());
ret *= 1000.0;
long long written = nvr->GetFramesWritten();
long long played = nvp->GetFramesPlayed();
played += (int)(offset * frameRate);
if (played > written)
played = written;
if (played < 0)
played = 0;
int secsbehind = (int)((float)(written - played) / frameRate);
if (secsbehind < 0)
secsbehind = 0;
int hours = (int)secsbehind / 3600;
int mins = ((int)secsbehind - hours * 3600) / 60;
int secs = ((int)secsbehind - hours * 3600 - mins * 60);
if (hours > 0)
sprintf(text, "%02d:%02d:%02d behind -- %.2f%% full", hours, mins,
secs, (1000 - ret) / 10);
else
sprintf(text, "%02d:%02d behind -- %.2f%% full", mins, secs,
(1000 - ret) / 10);
desc = text;
return (int)(1000 - ret);
}
float secsplayed = ((float)nvp->GetFramesPlayed() / frameRate) + offset;
ret = secsplayed / (float)playbackLen;
ret *= 1000.0;
int phours = (int)secsplayed / 3600;
int pmins = ((int)secsplayed - phours * 3600) / 60;
int psecs = ((int)secsplayed - phours * 3600 - pmins * 60);
int shours = playbackLen / 3600;
int smins = (playbackLen - shours * 3600) / 60;
int ssecs = (playbackLen - shours * 3600 - smins * 60);
if (shours > 0)
sprintf(text, "%02d:%02d:%02d of %02d:%02d:%02d", phours, pmins, psecs,
shours, smins, ssecs);
else
sprintf(text, "%02d:%02d of %02d:%02d", pmins, psecs, smins, ssecs);
desc = text;
return (int)(ret);
}
void TV::DoPause(void)
{
paused = nvp->TogglePause();
if (paused)
{
QString desc = "";
int pos = calcSliderPos(0, desc);
if (internalState == kState_WatchingLiveTV)
osd->StartPause(pos, true, "Paused", desc, -1);
else
osd->StartPause(pos, false, "Paused", desc, -1);
}
else
osd->EndPause();
}
void TV::DoFF(void)
{
if (paused)
return;
bool slidertype = false;
if (internalState == kState_WatchingLiveTV)
slidertype = true;
QString desc = "";
int pos = calcSliderPos(fftime, desc);
osd->StartPause(pos, slidertype, "Forward", desc, 1);
nvp->FastForward(fftime);
}
void TV::DoRew(void)
{
if (paused)
return;
bool slidertype = false;
if (internalState == kState_WatchingLiveTV)
slidertype = true;
QString desc = "";
int pos = calcSliderPos(0 - rewtime, desc);
osd->StartPause(pos, slidertype, "Rewind", desc, 1);
nvp->Rewind(rewtime);
}
void TV::ToggleInputs(void)
{
if (paused)
osd->EndPause();
paused = false;
nvp->Pause();
while (!nvp->GetPause())
usleep(5);
nvr->Pause();
while (!nvr->GetPause())
usleep(5);
rbuffer->Reset();
channel->ToggleInputs();
nvr->Reset();
nvr->Unpause();
nvp->ResetPlaying();
while (!nvp->ResetYet())
usleep(5);