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dvdringbuffer.cpp
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dvdringbuffer.cpp
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#include <unistd.h>
#include <stdlib.h>
#include "mythconfig.h"
#include "dvdringbuffer.h"
#include "mythcontext.h"
#include "mythmediamonitor.h"
#include "iso639.h"
#include "mythdvdplayer.h"
#include "compat.h"
#include "mythlogging.h"
#include "mythuihelper.h"
#define LOC QString("DVDRB: ")
#define IncrementButtonVersion \
if (++m_buttonVersion > 1024) \
m_buttonVersion = 1;
#define DVD_DRIVE_SPEED 1
static const char *dvdnav_menu_table[] =
{
NULL,
NULL,
"Title",
"Root",
"Subpicture",
"Audio",
"Angle",
"Part",
};
DVDInfo::DVDInfo(const QString &filename)
: m_nav(NULL), m_name(NULL), m_serialnumber(NULL)
{
LOG(VB_PLAYBACK, LOG_INFO, QString("DVDInfo: Trying %1").arg(filename));
QString name = filename;
if (name.startsWith("dvd://"))
name.remove(0,5);
else if (name.startsWith("dvd:/"))
name.remove(0,4);
else if (name.startsWith("dvd:"))
name.remove(0,4);
QByteArray fname = name.toLocal8Bit();
dvdnav_status_t res = dvdnav_open(&m_nav, fname.constData());
if (res == DVDNAV_STATUS_ERR)
{
LOG(VB_GENERAL, LOG_ERR, QString("DVDInfo: Failed to open device at %1")
.arg(fname.constData()));
return;
}
res = dvdnav_get_title_string(m_nav, &m_name);
if (res == DVDNAV_STATUS_ERR)
LOG(VB_GENERAL, LOG_ERR, "DVDInfo: Failed to get name.");
res = dvdnav_get_serial_string(m_nav, &m_serialnumber);
if (res == DVDNAV_STATUS_ERR)
LOG(VB_GENERAL, LOG_ERR, "DVDInfo: Failed to get serial number.");
}
DVDInfo::~DVDInfo(void)
{
if (m_nav)
dvdnav_close(m_nav);
LOG(VB_PLAYBACK, LOG_INFO, QString("DVDInfo: Finishing."));
}
bool DVDInfo::GetNameAndSerialNum(QString &name, QString &serial)
{
name = QString(m_name);
serial = QString(m_serialnumber);
if (name.isEmpty() && serial.isEmpty())
return false;
return true;
}
DVDRingBuffer::DVDRingBuffer(const QString &lfilename) :
RingBuffer(kRingBuffer_DVD),
m_dvdnav(NULL), m_dvdBlockReadBuf(NULL),
m_dvdBlockRPos(0), m_dvdBlockWPos(0),
m_pgLength(0), m_pgcLength(0),
m_cellStart(0), m_cellChanged(false),
m_pgcLengthChanged(false), m_pgStart(0),
m_currentpos(0),
m_lastNav(NULL), m_part(0), m_lastPart(0),
m_title(0), m_lastTitle(0), m_playerWait(false),
m_titleParts(0), m_gotStop(false), m_currentAngle(0),
m_currentTitleAngleCount(0),
m_endPts(0), m_timeDiff(0),
m_newSequence(false),
m_still(0), m_lastStill(0),
m_audioStreamsChanged(false),
m_dvdWaiting(false),
m_titleLength(0),
m_skipstillorwait(true),
m_cellstartPos(0), m_buttonSelected(false),
m_buttonExists(false),
m_buttonSeenInCell(false), m_lastButtonSeenInCell(false),
m_cellid(0), m_lastcellid(0),
m_vobid(0), m_lastvobid(0),
m_cellRepeated(false),
m_curAudioTrack(0),
m_curSubtitleTrack(0),
m_autoselectsubtitle(true),
m_dvdname(NULL), m_serialnumber(NULL),
m_seeking(false), m_seektime(0),
m_currentTime(0),
m_parent(NULL),
m_forcedAspect(-1.0f),
m_processState(PROCESS_NORMAL),
m_dvdStat(DVDNAV_STATUS_OK),
m_dvdEvent(0),
m_dvdEventSize(0),
// Menu/buttons
m_inMenu(false), m_buttonVersion(1), m_buttonStreamID(0),
m_hl_button(0, 0, 0, 0), m_menuSpuPkt(0), m_menuBuflength(0)
{
memset(&m_dvdMenuButton, 0, sizeof(AVSubtitle));
memset(m_dvdBlockWriteBuf, 0, sizeof(char) * DVD_BLOCK_SIZE);
memset(m_clut, 0, sizeof(uint32_t) * 16);
memset(m_button_color, 0, sizeof(uint8_t) * 4);
memset(m_button_alpha, 0, sizeof(uint8_t) * 4);
uint def[8] = { 3, 5, 10, 20, 30, 60, 120, 180 };
uint seekValues[8] = { 1, 2, 4, 8, 10, 15, 20, 60 };
for (uint i = 0; i < 8; i++)
m_seekSpeedMap.insert(def[i], seekValues[i]);
OpenFile(lfilename);
}
DVDRingBuffer::~DVDRingBuffer()
{
KillReadAheadThread();
CloseDVD();
m_menuBtnLock.lock();
ClearMenuSPUParameters();
m_menuBtnLock.unlock();
ClearChapterCache();
}
void DVDRingBuffer::CloseDVD(void)
{
rwlock.lockForWrite();
if (m_dvdnav)
{
SetDVDSpeed(-1);
dvdnav_close(m_dvdnav);
m_dvdnav = NULL;
}
m_gotStop = false;
m_audioStreamsChanged = true;
rwlock.unlock();
}
void DVDRingBuffer::ClearChapterCache(void)
{
rwlock.lockForWrite();
foreach (QList<uint64_t> chapters, m_chapterMap)
chapters.clear();
m_chapterMap.clear();
rwlock.unlock();
}
long long DVDRingBuffer::Seek(long long pos, int whence, bool has_lock)
{
LOG(VB_FILE, LOG_INFO, LOC + QString("Seek(%1,%2,%3)")
.arg(pos).arg((whence == SEEK_SET) ? "SEEK_SET":
((whence == SEEK_CUR) ? "SEEK_CUR" : "SEEK_END"))
.arg(has_lock ? "locked" : "unlocked"));
long long ret = -1;
// lockForWrite takes priority over lockForRead, so this will
// take priority over the lockForRead in the read ahead thread.
if (!has_lock)
rwlock.lockForWrite();
poslock.lockForWrite();
// Optimize no-op seeks
if (readaheadrunning &&
((whence == SEEK_SET && pos == readpos) ||
(whence == SEEK_CUR && pos == 0)))
{
ret = readpos;
poslock.unlock();
if (!has_lock)
rwlock.unlock();
return ret;
}
// only valid for SEEK_SET & SEEK_CUR
long long new_pos = (SEEK_SET==whence) ? pos : readpos + pos;
// Here we perform a normal seek. When successful we
// need to call ResetReadAhead(). A reset means we will
// need to refill the buffer, which takes some time.
if ((SEEK_END == whence) ||
((SEEK_CUR == whence) && new_pos != 0))
{
errno = EINVAL;
ret = -1;
}
else
{
NormalSeek(new_pos);
ret = new_pos;
}
if (ret >= 0)
{
readpos = ret;
ignorereadpos = -1;
if (readaheadrunning)
ResetReadAhead(readpos);
readAdjust = 0;
}
else
{
QString cmd = QString("Seek(%1, %2)").arg(pos)
.arg((whence == SEEK_SET) ? "SEEK_SET" :
((whence == SEEK_CUR) ? "SEEK_CUR" : "SEEK_END"));
LOG(VB_GENERAL, LOG_ERR, LOC + cmd + " Failed" + ENO);
}
poslock.unlock();
generalWait.wakeAll();
if (!has_lock)
rwlock.unlock();
return ret;
}
long long DVDRingBuffer::NormalSeek(long long time)
{
QMutexLocker lock(&m_seekLock);
return Seek(time);
}
long long DVDRingBuffer::Seek(long long time)
{
dvdnav_status_t dvdRet = DVDNAV_STATUS_OK;
int seekSpeed = 0;
int ffrewSkip = 1;
if (m_parent)
ffrewSkip = m_parent->GetFFRewSkip();
if (ffrewSkip != 1 && ffrewSkip != 0 && time != 0)
{
QMap<uint, uint>::const_iterator it = m_seekSpeedMap.lowerBound(labs(time));
if (it == m_seekSpeedMap.end())
seekSpeed = *(it - 1);
else
seekSpeed = *it;
if (time < 0)
seekSpeed = -seekSpeed;
dvdRet = dvdnav_relative_time_search(m_dvdnav, seekSpeed);
}
else
{
m_seektime = (uint64_t)time;
dvdRet = dvdnav_absolute_time_search(m_dvdnav, m_seektime, 0);
}
LOG(VB_PLAYBACK, LOG_DEBUG,
QString("DVD Playback Seek() time: %1; seekSpeed: %2")
.arg(time).arg(seekSpeed));
if (dvdRet == DVDNAV_STATUS_ERR)
{
LOG(VB_PLAYBACK, LOG_ERR, LOC +
QString("Seek() to time %1 failed").arg(time));
return -1;
}
else if (!m_inMenu)
{
m_gotStop = false;
if (time > 0 && ffrewSkip == 1)
m_seeking = true;
}
return m_currentpos;
}
bool DVDRingBuffer::IsBookmarkAllowed(void)
{
return GetTotalTimeOfTitle() >= 120;
}
void DVDRingBuffer::GetDescForPos(QString &desc)
{
if (m_inMenu)
{
if ((m_part <= DVD_MENU_MAX) && dvdnav_menu_table[m_part] )
{
desc = QString("%1 Menu").arg(dvdnav_menu_table[m_part]);
}
}
else
{
desc = QObject::tr("Title %1 chapter %2").arg(m_title).arg(m_part);
}
}
bool DVDRingBuffer::OpenFile(const QString &lfilename, uint retry_ms)
{
rwlock.lockForWrite();
if (m_dvdnav)
{
rwlock.unlock();
CloseDVD();
rwlock.lockForWrite();
}
safefilename = lfilename;
filename = lfilename;
QByteArray fname = filename.toLocal8Bit();
dvdnav_status_t res = dvdnav_open(&m_dvdnav, fname.constData());
if (res == DVDNAV_STATUS_ERR)
{
LOG(VB_GENERAL, LOG_ERR,
LOC + QString("Failed to open DVD device at %1")
.arg(fname.constData()));
rwlock.unlock();
return false;
}
LOG(VB_GENERAL, LOG_INFO, LOC + QString("Opened DVD device at %1")
.arg(fname.constData()));
dvdnav_set_readahead_flag(m_dvdnav, 0);
dvdnav_set_PGC_positioning_flag(m_dvdnav, 1);
// Check we aren't starting in a still frame (which will probably fail as
// ffmpeg will be unable to create a decoder)
if (dvdnav_get_next_still_flag(m_dvdnav))
{
LOG(VB_GENERAL, LOG_NOTICE,
LOC + "The selected title is a still frame. "
"Playback is likely to fail - please raise a bug report at "
"http://code.mythtv.org/trac");
}
dvdnav_get_title_string(m_dvdnav, &m_dvdname);
dvdnav_get_serial_string(m_dvdnav, &m_serialnumber);
SetDVDSpeed();
LOG(VB_PLAYBACK, LOG_INFO, LOC +
QString("DVD Serial Number %1").arg(m_serialnumber));
readblocksize = DVD_BLOCK_SIZE * 62;
setswitchtonext = false;
ateof = false;
commserror = false;
numfailures = 0;
rawbitrate = 8000;
CalcReadAheadThresh();
rwlock.unlock();
return true;
}
bool DVDRingBuffer::StartFromBeginning(void)
{
LOG(VB_GENERAL, LOG_INFO, LOC + "Resetting DVD device.");
// if a DVDNAV_STOP event has been emitted, dvdnav_reset does not
// seem to restore the state, hence we need to re-create
if (m_gotStop)
{
LOG(VB_GENERAL, LOG_ERR, LOC +
"DVD errored after initial scan - trying again");
CloseDVD();
OpenFile(filename);
if (!m_dvdnav)
LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to re-open DVD.");
}
if (m_dvdnav)
{
QMutexLocker lock(&m_seekLock);
dvdnav_reset(m_dvdnav);
dvdnav_first_play(m_dvdnav);
m_audioStreamsChanged = true;
}
m_endPts = 0;
m_timeDiff = 0;
return m_dvdnav;
}
void DVDRingBuffer::GetChapterTimes(QList<long long> ×)
{
if (!m_chapterMap.contains(m_title))
GetChapterTimes(m_title);
if (!m_chapterMap.contains(m_title))
return;
foreach (uint64_t chapter, m_chapterMap.value(m_title))
times.push_back(chapter);
}
uint64_t DVDRingBuffer::GetChapterTimes(uint title)
{
if (!m_dvdnav)
return 0;
uint64_t duration;
uint64_t *chaps;
uint32_t num = dvdnav_describe_title_chapters(m_dvdnav, title,
&chaps, &duration);
if (num < 1)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Failed to retrieve chapter data");
return 0;
}
QList<uint64_t> chapters;
// add the start
chapters.append(0);
// don't add the last 'chapter' - which is the title end
if (num > 1)
{
for (uint i = 0; i < num - 1; i++)
chapters.append((chaps[i] + 45000) / 90000);
}
// Assigned via calloc, must be free'd not deleted
if (chaps)
free(chaps);
m_chapterMap.insert(title, chapters);
return (duration + 45000) / 90000;
}
/** \brief returns current position in the PGC.
*/
long long DVDRingBuffer::GetReadPosition(void) const
{
uint32_t pos = 0;
uint32_t length = 1;
if (m_dvdnav)
{
if (dvdnav_get_position(m_dvdnav, &pos, &length) == DVDNAV_STATUS_ERR)
{
// try one more time
dvdnav_get_position(m_dvdnav, &pos, &length);
}
}
return pos * DVD_BLOCK_SIZE;
}
void DVDRingBuffer::WaitForPlayer(void)
{
if (!m_skipstillorwait)
{
LOG(VB_PLAYBACK, LOG_INFO,
LOC + "Waiting for player's buffers to drain");
m_playerWait = true;
int count = 0;
while (m_playerWait && count++ < 200)
{
rwlock.unlock();
usleep(10000);
rwlock.lockForWrite();
}
if (m_playerWait)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "Player wait state was not cleared");
m_playerWait = false;
}
}
}
int DVDRingBuffer::safe_read(void *data, uint sz)
{
unsigned char *blockBuf = NULL;
uint tot = 0;
int needed = sz;
char *dest = (char*) data;
int offset = 0;
bool bReprocessing = false;
if (m_gotStop)
{
LOG(VB_GENERAL, LOG_ERR, LOC + "safe_read: called after DVDNAV_STOP");
errno = EBADF;
return -1;
}
if (readaheadrunning)
LOG(VB_GENERAL, LOG_ERR, LOC + "read ahead thread running.");
while ((m_processState != PROCESS_WAIT) && needed)
{
blockBuf = m_dvdBlockWriteBuf;
if (m_processState == PROCESS_REPROCESS)
{
m_processState = PROCESS_NORMAL;
bReprocessing = true;
}
else
{
m_dvdStat = dvdnav_get_next_cache_block(
m_dvdnav, &blockBuf, &m_dvdEvent, &m_dvdEventSize);
bReprocessing = false;
}
if (m_dvdStat == DVDNAV_STATUS_ERR)
{
LOG(VB_GENERAL, LOG_ERR, LOC + QString("Failed to read block: %1")
.arg(dvdnav_err_to_string(m_dvdnav)));
errno = EIO;
return -1;
}
switch (m_dvdEvent)
{
// Standard packet for decoding
case DVDNAV_BLOCK_OK:
{
// copy block
if (!m_seeking)
{
memcpy(dest + offset, blockBuf, DVD_BLOCK_SIZE);
tot += DVD_BLOCK_SIZE;
}
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
// debug
LOG(VB_PLAYBACK|VB_FILE, LOG_DEBUG, LOC + "DVDNAV_BLOCK_OK");
}
break;
// cell change
case DVDNAV_CELL_CHANGE:
{
// get event details
dvdnav_cell_change_event_t *cell_event =
(dvdnav_cell_change_event_t*) (blockBuf);
// a menu is anything that isn't in the VTS domain
m_inMenu = !dvdnav_is_domain_vts(m_dvdnav);
// update information for the current cell
m_cellChanged = true;
if (m_pgcLength != cell_event->pgc_length)
m_pgcLengthChanged = true;
m_pgLength = cell_event->pg_length;
m_pgcLength = cell_event->pgc_length;
m_cellStart = cell_event->cell_start;
m_pgStart = cell_event->pg_start;
// update title/part/still/menu information
m_lastTitle = m_title;
m_lastPart = m_part;
m_lastStill = m_still;
uint32_t pos;
uint32_t length;
m_still = dvdnav_get_next_still_flag(m_dvdnav);
dvdnav_current_title_info(m_dvdnav, &m_title, &m_part);
dvdnav_get_number_of_parts(m_dvdnav, m_title, &m_titleParts);
dvdnav_get_position(m_dvdnav, &pos, &length);
dvdnav_get_angle_info(m_dvdnav, &m_currentAngle, &m_currentTitleAngleCount);
if (m_title != m_lastTitle)
{
// Populate the chapter list for this title, used in the OSD menu
GetChapterTimes(m_title);
}
m_titleLength = length * DVD_BLOCK_SIZE;
if (!m_seeking)
m_cellstartPos = GetReadPosition();
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC +
QString("---- DVDNAV_CELL_CHANGE - Cell "
"#%1 Menu %2 Length %3")
.arg(cell_event->cellN).arg(m_inMenu ? "Yes" : "No")
.arg((float)cell_event->cell_length / 90000.0f,0,'f',1));
QString still = m_still ? ((m_still < 0xff) ?
QString("Stillframe: %1 seconds").arg(m_still) :
QString("Infinite stillframe")) :
QString("Length: %1 seconds")
.arg((float)m_pgcLength / 90000.0f, 0, 'f', 1);
if (m_title == 0)
{
LOG(VB_PLAYBACK, LOG_INFO, LOC + QString("Menu #%1 %2")
.arg(m_part).arg(still));
}
else
{
LOG(VB_PLAYBACK, LOG_INFO,
LOC + QString("Title #%1: %2 Part %3 of %4")
.arg(m_title).arg(still).arg(m_part).arg(m_titleParts));
}
// wait unless it is a transition from one normal video cell to
// another or the same menu id
if (((m_still != m_lastStill) || (m_title != m_lastTitle)) &&
!((m_title == 0 && m_lastTitle == 0) &&
(m_part == m_lastPart)))
{
WaitForPlayer();
}
// Make sure the still frame timer is updated (if this isn't
// a still frame, this will ensure the timer knows about it).
if (m_parent)
{
m_parent->SetStillFrameTimeout(m_still);
}
// clear menus/still frame selections
m_lastvobid = m_vobid;
m_lastcellid = m_cellid;
m_lastButtonSeenInCell = m_buttonSeenInCell;
m_buttonSelected = false;
m_vobid = m_cellid = 0;
m_cellRepeated = false;
m_buttonSeenInCell = false;
IncrementButtonVersion;
if (m_inMenu)
{
m_autoselectsubtitle = true;
GetMythUI()->RestoreScreensaver();
}
else
GetMythUI()->DisableScreensaver();
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// new colour lookup table for subtitles/menu buttons
case DVDNAV_SPU_CLUT_CHANGE:
{
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC + "DVDNAV_SPU_CLUT_CHANGE");
// store the new clut
memcpy(m_clut, blockBuf, 16 * sizeof(uint32_t));
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// new Sub-picture Unit stream (subtitles/menu buttons)
case DVDNAV_SPU_STREAM_CHANGE:
{
// get event details
dvdnav_spu_stream_change_event_t* spu =
(dvdnav_spu_stream_change_event_t*)(blockBuf);
// clear any existing subs/buttons
IncrementButtonVersion;
// not sure
if (m_autoselectsubtitle)
m_curSubtitleTrack = dvdnav_get_active_spu_stream(m_dvdnav);
// debug
LOG(VB_PLAYBACK, LOG_DEBUG,
QString(LOC + "DVDNAV_SPU_STREAM_CHANGE: "
"physicalwide %1, physicalletterbox %2, "
"physicalpanscan %3, currenttrack %4")
.arg(spu->physical_wide).arg(spu->physical_letterbox)
.arg(spu->physical_pan_scan).arg(m_curSubtitleTrack));
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// the audio stream changed
case DVDNAV_AUDIO_STREAM_CHANGE:
{
// retrieve the new track
int new_track = dvdnav_get_active_audio_stream(m_dvdnav);
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC +
QString("DVDNAV_AUDIO_STREAM_CHANGE: old %1 new %2")
.arg(new_track).arg(m_curAudioTrack));
// tell the decoder to reset the audio streams if necessary
if (new_track != m_curAudioTrack)
{
m_curAudioTrack = new_track;
m_audioStreamsChanged = true;
}
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// navigation packet
case DVDNAV_NAV_PACKET:
{
QMutexLocker lock(&m_seekLock);
pci_t *pci = dvdnav_get_current_nav_pci(m_dvdnav);
// If the start PTS of this block is not the
// same as the end PTS of the last block,
// we've got a timestamp discontinuity
int64_t diff = (int64_t)pci->pci_gi.vobu_s_ptm - m_endPts;
if (diff != 0)
{
if (!bReprocessing && !m_skipstillorwait)
{
LOG(VB_PLAYBACK, LOG_DEBUG, LOC + QString("PTS discontinuity - waiting for decoder: this %1, last %2, diff %3")
.arg(pci->pci_gi.vobu_s_ptm)
.arg(m_endPts)
.arg(diff));
m_processState = PROCESS_WAIT;
break;
}
m_timeDiff += diff;
}
m_endPts = pci->pci_gi.vobu_e_ptm;
// get the latest nav
m_lastNav = (dvdnav_t *)blockBuf;
// retrive the latest Data Search Information
dsi_t *dsi = dvdnav_get_current_nav_dsi(m_dvdnav);
// if we are in a looping menu, we don't want to reset the
// selected button when we restart
m_vobid = dsi->dsi_gi.vobu_vob_idn;
m_cellid = dsi->dsi_gi.vobu_c_idn;
if ((m_lastvobid == m_vobid) && (m_lastcellid == m_cellid)
&& m_lastButtonSeenInCell)
{
m_cellRepeated = true;
}
// update our status
m_currentTime = (uint)dvdnav_get_current_time(m_dvdnav);
m_currentpos = GetReadPosition();
if (m_seeking)
{
int relativetime =
(int)((m_seektime - m_currentTime)/ 90000);
if (relativetime <= 1)
{
m_seeking = false;
m_seektime = 0;
}
else
{
dvdnav_relative_time_search(m_dvdnav, relativetime * 2);
}
}
// update the button stream number if this is the
// first NAV pack containing button information
if ( (pci->hli.hl_gi.hli_ss & 0x03) == 0x01 )
{
m_buttonStreamID = 32;
int aspect = dvdnav_get_video_aspect(m_dvdnav);
// workaround where dvd menu is
// present in VTS_DOMAIN. dvdnav adds 0x80 to stream id
// proper fix should be put in dvdnav sometime
int8_t spustream = dvdnav_get_active_spu_stream(m_dvdnav) & 0x7f;
if (aspect != 0 && spustream > 0)
m_buttonStreamID += spustream;
m_buttonSeenInCell = true;
}
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC + QString("DVDNAV_NAV_PACKET - time:%1, pos:%2, vob:%3, cell:%4, seeking:%5, seektime:%6")
.arg(m_currentTime)
.arg(m_currentpos)
.arg(m_vobid)
.arg(m_cellid)
.arg(m_seeking)
.arg(m_seektime));
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
case DVDNAV_HOP_CHANNEL:
{
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC + "DVDNAV_HOP_CHANNEL");
WaitForPlayer();
}
break;
// no op
case DVDNAV_NOP:
break;
// new Video Title Set - aspect ratio/letterboxing
case DVDNAV_VTS_CHANGE:
{
// retrieve event details
dvdnav_vts_change_event_t* vts =
(dvdnav_vts_change_event_t*)(blockBuf);
// update player
int aspect = dvdnav_get_video_aspect(m_dvdnav);
if (aspect == 2) // 4:3
m_forcedAspect = 4.0f / 3.0f;
else if (aspect == 3) // 16:9
m_forcedAspect = 16.0f / 9.0f;
else
m_forcedAspect = -1;
int permission = dvdnav_get_video_scale_permission(m_dvdnav);
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC +
QString("DVDNAV_VTS_CHANGE: old_vtsN %1, new_vtsN %2, "
"aspect %3, perm %4")
.arg(vts->old_vtsN).arg(vts->new_vtsN)
.arg(aspect).arg(permission));
// trigger a rescan of the audio streams
if ((vts->old_vtsN != vts->new_vtsN) ||
(vts->old_domain != vts->new_domain))
{
m_audioStreamsChanged = true;
}
// Make sure we know we're not staying in the
// same cell (same vobid/cellid values can
// occur in every VTS)
m_lastvobid = m_vobid = 0;
m_lastcellid = m_cellid = 0;
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// menu button
case DVDNAV_HIGHLIGHT:
{
// retrieve details
dvdnav_highlight_event_t* hl =
(dvdnav_highlight_event_t*)(blockBuf);
// update the current button
m_menuBtnLock.lock();
DVDButtonUpdate(false);
IncrementButtonVersion;
m_menuBtnLock.unlock();
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC +
QString("DVDNAV_HIGHLIGHT: display %1, palette %2, "
"sx %3, sy %4, ex %5, ey %6, pts %7, buttonN %8")
.arg(hl->display).arg(hl->palette)
.arg(hl->sx).arg(hl->sy)
.arg(hl->ex).arg(hl->ey)
.arg(hl->pts).arg(hl->buttonN));
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// dvd still frame
case DVDNAV_STILL_FRAME:
{
// retrieve still frame details (length)
dvdnav_still_event_t* still =
(dvdnav_still_event_t*)(blockBuf);
// sense check
if (!m_still)
LOG(VB_GENERAL, LOG_WARNING, LOC + "DVDNAV_STILL_FRAME in "
"cell that is not marked as a still frame");
if (still->length != m_still)
LOG(VB_GENERAL, LOG_WARNING, LOC + "DVDNAV_STILL_FRAME "
"length does not match cell still length");
// pause a little as the dvdnav VM will continue to return
// this event until it has been skipped
rwlock.unlock();
usleep(10000);
rwlock.lockForWrite();
// when scanning the file or exiting playback, skip immediately
// otherwise update the timeout in the player
if (m_skipstillorwait)
SkipStillFrame();
else if (m_parent)
{
if ((still->length > 0) && (still->length < 0xff))
m_parent->SetStillFrameTimeout(still->length);
}
// debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC + "DVDNAV_STILL_FRAME");
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// wait for the player
case DVDNAV_WAIT:
{
//debug
LOG(VB_PLAYBACK, LOG_DEBUG, LOC + "DVDNAV_WAIT");
// skip if required, otherwise wait (and loop)
if (m_skipstillorwait)
WaitSkip();
else
{
m_dvdWaiting = true;
rwlock.unlock();
usleep(10000);
rwlock.lockForWrite();
}
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// exit playback
case DVDNAV_STOP:
{
LOG(VB_GENERAL, LOG_INFO, LOC + "DVDNAV_STOP");
sz = tot;
m_gotStop = true;
// release buffer
if (blockBuf != m_dvdBlockWriteBuf)
dvdnav_free_cache_block(m_dvdnav, blockBuf);
}
break;
// this shouldn't happen
default:
{
LOG(VB_GENERAL, LOG_ERR, LOC +
QString("Unknown DVD event: %1").arg(m_dvdEvent));
}
break;
}
needed = sz - tot;