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vdr/recording.c
Klaus Schmidinger 5076cfb2ed Version 2.1.1 
VDR developer version 2.1.1 is now available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-2.1.1.tar.bz2

A 'diff' against the previous version is available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-2.0.0-2.1.1.diff

MD5 checksums:

b17f9838bb8ddee9620f838fea7a171d  vdr-2.1.1.tar.bz2
8b8ca593885c380cd370e6d19a5b16a1  vdr-2.0.0-2.1.1.diff

WARNING:
========

This is a *developer* version. Even though *I* use it in my productive
environment, I strongly recommend that you only use it under controlled
conditions and for testing and debugging.

The main focus of this version is on adding basic support for positioners
to control steerable satellite dishes. Manually controlling the dish position
and storing individual positions will follow later.

The fixes contained in this version will be released in a stable version 2.0.3
later, if there are no problems.

From the HISTORY file:
- Fixed initializing cDevice::keepTracks.
- Fixed an endless loop in cTextWrapper::Set() in case the given Width is smaller than
  one character (reported by Stefan Braun).
- Removed all "modified since version 1.6" markers from PLUGINS.html.
- Added definitions for older DVB API versions, back until 5.0 (based on a patch from
  Udo Richter).
- Changed cThread::SetIOPriority() from "best effort class" to "idle class" in order to
  improve overall performance when an editing process is running (thanks to Jochen
  Dolze).
- Fixed handling '/' and '~' in recording file names in case DirectoryEncoding is
  used (thanks to Lars Hanisch).
- Changed the sign of the satellite position value in cSource to reflect the standard
  of western values being negative. The new member function cSource::Position() can be
  used to retrieve the orbital position of a satellite.
- Fixed multiple occurrences of the same directory in the recordings list in case there
  are directories that only differ in non-alphanumeric characters (was broken by
  "Fixed selecting the last replayed recording in the Recordings menu in case there
  are folders and plain recordings with names that differ only in non-alphanumeric
  characters" in version 1.7.36).
- Fixed displaying the frame number when setting an editing mark (thanks to Thomas
  Günther).
- Fixed no longer generating any editing marks if the edited recording results in just
  one single sequence (reported by Halim Sahin).
- Fixed an error message when parsing SCR values in diseqc.conf.
- Fixed an unexpected RCS version tag in the newplugin script.
- Fixed an endless loop in the DrawEllipse() functions for very small ellipses (reported
  by Stefan Braun).
- Fixed a crash in the LCARS skin's main menu in case there is no current channel
  (reported by Dominique Dumont).
- Added basic support for positioners to control steerable satellite dishes (based on
  a patch from Seppo Ingalsuo and Ales Jurik).
  + Supports GotoN (aka "DiSEqC 1.2") and GotoX (aka "USALS").
  + The new DiSEqC command code 'P' can be used to instruct a positioner to move the
    dish to the required satellite position. When a 'P' code is processed, further
    execution of the remaining DiSEqC sequence (if any) is postponed until the positioner
    has reached the new satellite position.
  + The new special source value of "S360E" can be used in diseqc.conf to indicate that
    an entry using a positioner can move the dish to any requested position within its
    range. Think of it as "full circle".
  + The devices a particular cDiseqc or cScr applies to are now stored directly in each
    cDiseqc or cScr, respectively.
  + A plugin can implement a custom positioner control (see PLUGINS.html, section "Positioners").
  + The new function cSkinDisplayChannel::SetPositioner() can be implemented by skins to
    show the user a progress display when the dish is being moved. The default implementation
    calls SetMessage() with a string indicating the new position the dish is being moved to.
    The LCARS skin shows a progress bar indicating the movement of the dish.
  + The new parameters "Site latitude", "Site longitude", "Positioner speed", and
    "Positioner swing" in the "Setup/LNB" menu can be used to configure the necessary
    values for a steerable dish.
  + The cDvbTuner now has a new status tsPositioning, in which it waits until a steerable
    dish has reached its target position. Parsing SI data is paused until the target
    position has been reached.
- The LCARS skin now shows the source value of the current channel in its channel display.
- Fixed asserting free disk space in the cutter.
- No longer trying to delete old recordings in AssertFreeDiskSpace() if the given
  Priority is less than 1.
- Fixed handling LIRC events in case repeated events are lost.
- Fixed a possible crash when shutting down VDR while subtitles are being displayed
  (reported by Ville Skyttä).
- cDevice::IsPrimaryDevice() now also checks whether the primary device actually has
  a decoder and returns false otherwise. This should improve device allocation on
  systems that are only used as a receiver and don't actually display anything.
- Increased the value of MAXRETRIES to 20 to reduce the probability of disturbances
  in transfer mode.
- All bonded devices (except for the master) now turn off their LNB power completely
  to avoid problems when receiving vertically polarized transponders (suggested by
  Manfred Völkel and Oliver Endriss).
- Reverted the change from version 1.5.7 that made all logging go to LOG_ERR (thanks
  to Christopher Reimer).
- Added Begin/EndSegmentTransfer() to the EPG handler interface (thanks to Jörg Wendel).
- The code for distributing recordings over several video directories is now
  deprecated and disabled by default.
  You can re-enable this feature by removing the comment sign ('//') from the beginning
  of the line
  //#define DEPRECATED_DISTRIBUTED_VIDEODIR // Code enclosed with this macro is ...
  in the file videodir.c. Note, though, that this can only be a temporary workaround.
  This feature will be completely removed in one of the next developer versions.
  Distributing the video directory over several disks was a useful feature in times
  when disks were still relatively small, but it also caused serious problems in case
  one of the disks failed. Nowadays hard disks come in sizes measured in terabytes,
  and tools like "mhddfs" can be used to combine several disks to form one large volume.
  A recommended method for a relatively safe disk setup in a VDR system is to use two
  1TB (or larger) disks and use them as a RAID-1 (mirrored). That way, if one disk
  fails, you can replace it without data loss.
2013-08-25 18:40:45 +02:00

2436 lines
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/*
* recording.c: Recording file handling
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: recording.c 3.2 2013/08/21 13:03:38 kls Exp $
*/
#include "recording.h"
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#define __STDC_FORMAT_MACROS // Required for format specifiers
#include <inttypes.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "channels.h"
#include "i18n.h"
#include "interface.h"
#include "remux.h"
#include "ringbuffer.h"
#include "skins.h"
#include "tools.h"
#include "videodir.h"
#define SUMMARYFALLBACK
#define RECEXT ".rec"
#define DELEXT ".del"
/* This was the original code, which works fine in a Linux only environment.
Unfortunately, because of Windows and its brain dead file system, we have
to use a more complicated approach, in order to allow users who have enabled
the --vfat command line option to see their recordings even if they forget to
enable --vfat when restarting VDR... Gee, do I hate Windows.
(kls 2002-07-27)
#define DATAFORMAT "%4d-%02d-%02d.%02d:%02d.%02d.%02d" RECEXT
#define NAMEFORMAT "%s/%s/" DATAFORMAT
*/
#define DATAFORMATPES "%4d-%02d-%02d.%02d%*c%02d.%02d.%02d" RECEXT
#define NAMEFORMATPES "%s/%s/" "%4d-%02d-%02d.%02d.%02d.%02d.%02d" RECEXT
#define DATAFORMATTS "%4d-%02d-%02d.%02d.%02d.%d-%d" RECEXT
#define NAMEFORMATTS "%s/%s/" DATAFORMATTS
#define RESUMEFILESUFFIX "/resume%s%s"
#ifdef SUMMARYFALLBACK
#define SUMMARYFILESUFFIX "/summary.vdr"
#endif
#define INFOFILESUFFIX "/info"
#define MARKSFILESUFFIX "/marks"
#define SORTMODEFILE ".sort"
#define MINDISKSPACE 1024 // MB
#define REMOVECHECKDELTA 60 // seconds between checks for removing deleted files
#define DELETEDLIFETIME 300 // seconds after which a deleted recording will be actually removed
#define DISKCHECKDELTA 100 // seconds between checks for free disk space
#define REMOVELATENCY 10 // seconds to wait until next check after removing a file
#define MARKSUPDATEDELTA 10 // seconds between checks for updating editing marks
#define MININDEXAGE 3600 // seconds before an index file is considered no longer to be written
#define MAX_LINK_LEVEL 6
int DirectoryPathMax = PATH_MAX - 1;
int DirectoryNameMax = NAME_MAX;
bool DirectoryEncoding = false;
int InstanceId = 0;
cRecordings DeletedRecordings(true);
// --- cRemoveDeletedRecordingsThread ----------------------------------------
class cRemoveDeletedRecordingsThread : public cThread {
protected:
virtual void Action(void);
public:
cRemoveDeletedRecordingsThread(void);
};
cRemoveDeletedRecordingsThread::cRemoveDeletedRecordingsThread(void)
:cThread("remove deleted recordings", true)
{
}
void cRemoveDeletedRecordingsThread::Action(void)
{
// Make sure only one instance of VDR does this:
cLockFile LockFile(VideoDirectory);
if (LockFile.Lock()) {
bool deleted = false;
cThreadLock DeletedRecordingsLock(&DeletedRecordings);
for (cRecording *r = DeletedRecordings.First(); r; ) {
if (cIoThrottle::Engaged())
return;
if (r->Deleted() && time(NULL) - r->Deleted() > DELETEDLIFETIME) {
cRecording *next = DeletedRecordings.Next(r);
r->Remove();
DeletedRecordings.Del(r);
r = next;
deleted = true;
continue;
}
r = DeletedRecordings.Next(r);
}
if (deleted) {
const char *IgnoreFiles[] = { SORTMODEFILE, NULL };
RemoveEmptyVideoDirectories(IgnoreFiles);
}
}
}
static cRemoveDeletedRecordingsThread RemoveDeletedRecordingsThread;
// ---
void RemoveDeletedRecordings(void)
{
static time_t LastRemoveCheck = 0;
if (time(NULL) - LastRemoveCheck > REMOVECHECKDELTA) {
if (!RemoveDeletedRecordingsThread.Active()) {
cThreadLock DeletedRecordingsLock(&DeletedRecordings);
for (cRecording *r = DeletedRecordings.First(); r; r = DeletedRecordings.Next(r)) {
if (r->Deleted() && time(NULL) - r->Deleted() > DELETEDLIFETIME) {
RemoveDeletedRecordingsThread.Start();
break;
}
}
}
LastRemoveCheck = time(NULL);
}
}
void AssertFreeDiskSpace(int Priority, bool Force)
{
static cMutex Mutex;
cMutexLock MutexLock(&Mutex);
// With every call to this function we try to actually remove
// a file, or mark a file for removal ("delete" it), so that
// it will get removed during the next call.
static time_t LastFreeDiskCheck = 0;
int Factor = (Priority == -1) ? 10 : 1;
if (Force || time(NULL) - LastFreeDiskCheck > DISKCHECKDELTA / Factor) {
if (!VideoFileSpaceAvailable(MINDISKSPACE)) {
// Make sure only one instance of VDR does this:
cLockFile LockFile(VideoDirectory);
if (!LockFile.Lock())
return;
// Remove the oldest file that has been "deleted":
isyslog("low disk space while recording, trying to remove a deleted recording...");
cThreadLock DeletedRecordingsLock(&DeletedRecordings);
if (DeletedRecordings.Count()) {
cRecording *r = DeletedRecordings.First();
cRecording *r0 = NULL;
while (r) {
if (r->IsOnVideoDirectoryFileSystem()) { // only remove recordings that will actually increase the free video disk space
if (!r0 || r->Start() < r0->Start())
r0 = r;
}
r = DeletedRecordings.Next(r);
}
if (r0) {
if (r0->Remove())
LastFreeDiskCheck += REMOVELATENCY / Factor;
DeletedRecordings.Del(r0);
return;
}
}
else {
// DeletedRecordings was empty, so to be absolutely sure there are no
// deleted recordings we need to double check:
DeletedRecordings.Update(true);
if (DeletedRecordings.Count())
return; // the next call will actually remove it
}
// No "deleted" files to remove, so let's see if we can delete a recording:
if (Priority > 0) {
isyslog("...no deleted recording found, trying to delete an old recording...");
cThreadLock RecordingsLock(&Recordings);
if (Recordings.Count()) {
cRecording *r = Recordings.First();
cRecording *r0 = NULL;
while (r) {
if (r->IsOnVideoDirectoryFileSystem()) { // only delete recordings that will actually increase the free video disk space
if (!r->IsEdited() && r->Lifetime() < MAXLIFETIME) { // edited recordings and recordings with MAXLIFETIME live forever
if ((r->Lifetime() == 0 && Priority > r->Priority()) || // the recording has no guaranteed lifetime and the new recording has higher priority
(r->Lifetime() > 0 && (time(NULL) - r->Start()) / SECSINDAY >= r->Lifetime())) { // the recording's guaranteed lifetime has expired
if (r0) {
if (r->Priority() < r0->Priority() || (r->Priority() == r0->Priority() && r->Start() < r0->Start()))
r0 = r; // in any case we delete the one with the lowest priority (or the older one in case of equal priorities)
}
else
r0 = r;
}
}
}
r = Recordings.Next(r);
}
if (r0 && r0->Delete()) {
Recordings.Del(r0);
return;
}
}
// Unable to free disk space, but there's nothing we can do about that...
isyslog("...no old recording found, giving up");
}
else
isyslog("...no deleted recording found, priority %d too low to trigger deleting an old recording", Priority);
Skins.QueueMessage(mtWarning, tr("Low disk space!"), 5, -1);
}
LastFreeDiskCheck = time(NULL);
}
}
// --- cResumeFile -----------------------------------------------------------
cResumeFile::cResumeFile(const char *FileName, bool IsPesRecording)
{
isPesRecording = IsPesRecording;
const char *Suffix = isPesRecording ? RESUMEFILESUFFIX ".vdr" : RESUMEFILESUFFIX;
fileName = MALLOC(char, strlen(FileName) + strlen(Suffix) + 1);
if (fileName) {
strcpy(fileName, FileName);
sprintf(fileName + strlen(fileName), Suffix, Setup.ResumeID ? "." : "", Setup.ResumeID ? *itoa(Setup.ResumeID) : "");
}
else
esyslog("ERROR: can't allocate memory for resume file name");
}
cResumeFile::~cResumeFile()
{
free(fileName);
}
int cResumeFile::Read(void)
{
int resume = -1;
if (fileName) {
struct stat st;
if (stat(fileName, &st) == 0) {
if ((st.st_mode & S_IWUSR) == 0) // no write access, assume no resume
return -1;
}
if (isPesRecording) {
int f = open(fileName, O_RDONLY);
if (f >= 0) {
if (safe_read(f, &resume, sizeof(resume)) != sizeof(resume)) {
resume = -1;
LOG_ERROR_STR(fileName);
}
close(f);
}
else if (errno != ENOENT)
LOG_ERROR_STR(fileName);
}
else {
FILE *f = fopen(fileName, "r");
if (f) {
cReadLine ReadLine;
char *s;
int line = 0;
while ((s = ReadLine.Read(f)) != NULL) {
++line;
char *t = skipspace(s + 1);
switch (*s) {
case 'I': resume = atoi(t);
break;
default: ;
}
}
fclose(f);
}
else if (errno != ENOENT)
LOG_ERROR_STR(fileName);
}
}
return resume;
}
bool cResumeFile::Save(int Index)
{
if (fileName) {
if (isPesRecording) {
int f = open(fileName, O_WRONLY | O_CREAT | O_TRUNC, DEFFILEMODE);
if (f >= 0) {
if (safe_write(f, &Index, sizeof(Index)) < 0)
LOG_ERROR_STR(fileName);
close(f);
Recordings.ResetResume(fileName);
return true;
}
}
else {
FILE *f = fopen(fileName, "w");
if (f) {
fprintf(f, "I %d\n", Index);
fclose(f);
Recordings.ResetResume(fileName);
}
else
LOG_ERROR_STR(fileName);
return true;
}
}
return false;
}
void cResumeFile::Delete(void)
{
if (fileName) {
if (remove(fileName) == 0)
Recordings.ResetResume(fileName);
else if (errno != ENOENT)
LOG_ERROR_STR(fileName);
}
}
// --- cRecordingInfo --------------------------------------------------------
cRecordingInfo::cRecordingInfo(const cChannel *Channel, const cEvent *Event)
{
channelID = Channel ? Channel->GetChannelID() : tChannelID::InvalidID;
channelName = Channel ? strdup(Channel->Name()) : NULL;
ownEvent = Event ? NULL : new cEvent(0);
event = ownEvent ? ownEvent : Event;
aux = NULL;
framesPerSecond = DEFAULTFRAMESPERSECOND;
priority = MAXPRIORITY;
lifetime = MAXLIFETIME;
fileName = NULL;
if (Channel) {
// Since the EPG data's component records can carry only a single
// language code, let's see whether the channel's PID data has
// more information:
cComponents *Components = (cComponents *)event->Components();
if (!Components)
Components = new cComponents;
for (int i = 0; i < MAXAPIDS; i++) {
const char *s = Channel->Alang(i);
if (*s) {
tComponent *Component = Components->GetComponent(i, 2, 3);
if (!Component)
Components->SetComponent(Components->NumComponents(), 2, 3, s, NULL);
else if (strlen(s) > strlen(Component->language))
strn0cpy(Component->language, s, sizeof(Component->language));
}
}
// There's no "multiple languages" for Dolby Digital tracks, but
// we do the same procedure here, too, in case there is no component
// information at all:
for (int i = 0; i < MAXDPIDS; i++) {
const char *s = Channel->Dlang(i);
if (*s) {
tComponent *Component = Components->GetComponent(i, 4, 0); // AC3 component according to the DVB standard
if (!Component)
Component = Components->GetComponent(i, 2, 5); // fallback "Dolby" component according to the "Premiere pseudo standard"
if (!Component)
Components->SetComponent(Components->NumComponents(), 2, 5, s, NULL);
else if (strlen(s) > strlen(Component->language))
strn0cpy(Component->language, s, sizeof(Component->language));
}
}
// The same applies to subtitles:
for (int i = 0; i < MAXSPIDS; i++) {
const char *s = Channel->Slang(i);
if (*s) {
tComponent *Component = Components->GetComponent(i, 3, 3);
if (!Component)
Components->SetComponent(Components->NumComponents(), 3, 3, s, NULL);
else if (strlen(s) > strlen(Component->language))
strn0cpy(Component->language, s, sizeof(Component->language));
}
}
if (Components != event->Components())
((cEvent *)event)->SetComponents(Components);
}
}
cRecordingInfo::cRecordingInfo(const char *FileName)
{
channelID = tChannelID::InvalidID;
channelName = NULL;
ownEvent = new cEvent(0);
event = ownEvent;
aux = NULL;
framesPerSecond = DEFAULTFRAMESPERSECOND;
priority = MAXPRIORITY;
lifetime = MAXLIFETIME;
fileName = strdup(cString::sprintf("%s%s", FileName, INFOFILESUFFIX));
}
cRecordingInfo::~cRecordingInfo()
{
delete ownEvent;
free(aux);
free(channelName);
free(fileName);
}
void cRecordingInfo::SetData(const char *Title, const char *ShortText, const char *Description)
{
if (!isempty(Title))
((cEvent *)event)->SetTitle(Title);
if (!isempty(ShortText))
((cEvent *)event)->SetShortText(ShortText);
if (!isempty(Description))
((cEvent *)event)->SetDescription(Description);
}
void cRecordingInfo::SetAux(const char *Aux)
{
free(aux);
aux = Aux ? strdup(Aux) : NULL;
}
void cRecordingInfo::SetFramesPerSecond(double FramesPerSecond)
{
framesPerSecond = FramesPerSecond;
}
bool cRecordingInfo::Read(FILE *f)
{
if (ownEvent) {
cReadLine ReadLine;
char *s;
int line = 0;
while ((s = ReadLine.Read(f)) != NULL) {
++line;
char *t = skipspace(s + 1);
switch (*s) {
case 'C': {
char *p = strchr(t, ' ');
if (p) {
free(channelName);
channelName = strdup(compactspace(p));
*p = 0; // strips optional channel name
}
if (*t)
channelID = tChannelID::FromString(t);
}
break;
case 'E': {
unsigned int EventID;
time_t StartTime;
int Duration;
unsigned int TableID = 0;
unsigned int Version = 0xFF;
int n = sscanf(t, "%u %ld %d %X %X", &EventID, &StartTime, &Duration, &TableID, &Version);
if (n >= 3 && n <= 5) {
ownEvent->SetEventID(EventID);
ownEvent->SetStartTime(StartTime);
ownEvent->SetDuration(Duration);
ownEvent->SetTableID(uchar(TableID));
ownEvent->SetVersion(uchar(Version));
}
}
break;
case 'F': framesPerSecond = atod(t);
break;
case 'L': lifetime = atoi(t);
break;
case 'P': priority = atoi(t);
break;
case '@': free(aux);
aux = strdup(t);
break;
case '#': break; // comments are ignored
default: if (!ownEvent->Parse(s)) {
esyslog("ERROR: EPG data problem in line %d", line);
return false;
}
break;
}
}
return true;
}
return false;
}
bool cRecordingInfo::Write(FILE *f, const char *Prefix) const
{
if (channelID.Valid())
fprintf(f, "%sC %s%s%s\n", Prefix, *channelID.ToString(), channelName ? " " : "", channelName ? channelName : "");
event->Dump(f, Prefix, true);
fprintf(f, "%sF %s\n", Prefix, *dtoa(framesPerSecond, "%.10g"));
fprintf(f, "%sP %d\n", Prefix, priority);
fprintf(f, "%sL %d\n", Prefix, lifetime);
if (aux)
fprintf(f, "%s@ %s\n", Prefix, aux);
return true;
}
bool cRecordingInfo::Read(void)
{
bool Result = false;
if (fileName) {
FILE *f = fopen(fileName, "r");
if (f) {
if (Read(f))
Result = true;
else
esyslog("ERROR: EPG data problem in file %s", fileName);
fclose(f);
}
else if (errno != ENOENT)
LOG_ERROR_STR(fileName);
}
return Result;
}
bool cRecordingInfo::Write(void) const
{
bool Result = false;
if (fileName) {
cSafeFile f(fileName);
if (f.Open()) {
if (Write(f))
Result = true;
f.Close();
}
else
LOG_ERROR_STR(fileName);
}
return Result;
}
// --- cRecording ------------------------------------------------------------
#define RESUME_NOT_INITIALIZED (-2)
struct tCharExchange { char a; char b; };
tCharExchange CharExchange[] = {
{ FOLDERDELIMCHAR, '/' },
{ '/', FOLDERDELIMCHAR },
{ ' ', '_' },
// backwards compatibility:
{ '\'', '\'' },
{ '\'', '\x01' },
{ '/', '\x02' },
{ 0, 0 }
};
const char *InvalidChars = "\"\\/:*?|<>#";
bool NeedsConversion(const char *p)
{
return DirectoryEncoding &&
(strchr(InvalidChars, *p) // characters that can't be part of a Windows file/directory name
|| *p == '.' && (!*(p + 1) || *(p + 1) == FOLDERDELIMCHAR)); // Windows can't handle '.' at the end of file/directory names
}
char *ExchangeChars(char *s, bool ToFileSystem)
{
char *p = s;
while (*p) {
if (DirectoryEncoding) {
// Some file systems can't handle all characters, so we
// have to take extra efforts to encode/decode them:
if (ToFileSystem) {
switch (*p) {
// characters that can be mapped to other characters:
case ' ': *p = '_'; break;
case FOLDERDELIMCHAR: *p = '/'; break;
case '/': *p = FOLDERDELIMCHAR; break;
// characters that have to be encoded:
default:
if (NeedsConversion(p)) {
int l = p - s;
if (char *NewBuffer = (char *)realloc(s, strlen(s) + 10)) {
s = NewBuffer;
p = s + l;
char buf[4];
sprintf(buf, "#%02X", (unsigned char)*p);
memmove(p + 2, p, strlen(p) + 1);
strncpy(p, buf, 3);
p += 2;
}
else
esyslog("ERROR: out of memory");
}
}
}
else {
switch (*p) {
// mapped characters:
case '_': *p = ' '; break;
case FOLDERDELIMCHAR: *p = '/'; break;
case '/': *p = FOLDERDELIMCHAR; break;
// encoded characters:
case '#': {
if (strlen(p) > 2 && isxdigit(*(p + 1)) && isxdigit(*(p + 2))) {
char buf[3];
sprintf(buf, "%c%c", *(p + 1), *(p + 2));
uchar c = uchar(strtol(buf, NULL, 16));
if (c) {
*p = c;
memmove(p + 1, p + 3, strlen(p) - 2);
}
}
}
break;
// backwards compatibility:
case '\x01': *p = '\''; break;
case '\x02': *p = '/'; break;
case '\x03': *p = ':'; break;
default: ;
}
}
}
else {
for (struct tCharExchange *ce = CharExchange; ce->a && ce->b; ce++) {
if (*p == (ToFileSystem ? ce->a : ce->b)) {
*p = ToFileSystem ? ce->b : ce->a;
break;
}
}
}
p++;
}
return s;
}
char *LimitNameLengths(char *s, int PathMax, int NameMax)
{
// Limits the total length of the directory path in 's' to PathMax, and each
// individual directory name to NameMax. The lengths of characters that need
// conversion when using 's' as a file name are taken into account accordingly.
// If a directory name exceeds NameMax, it will be truncated. If the whole
// directory path exceeds PathMax, individual directory names will be shortened
// (from right to left) until the limit is met, or until the currently handled
// directory name consists of only a single character. All operations are performed
// directly on the given 's', which may become shorter (but never longer) than
// the original value.
// Returns a pointer to 's'.
int Length = strlen(s);
int PathLength = 0;
// Collect the resulting lengths of each character:
bool NameTooLong = false;
int8_t a[Length];
int n = 0;
int NameLength = 0;
for (char *p = s; *p; p++) {
if (*p == FOLDERDELIMCHAR) {
a[n] = -1; // FOLDERDELIMCHAR is a single character, neg. sign marks it
NameTooLong |= NameLength > NameMax;
NameLength = 0;
PathLength += 1;
}
else if (NeedsConversion(p)) {
a[n] = 3; // "#xx"
NameLength += 3;
PathLength += 3;
}
else {
int8_t l = Utf8CharLen(p);
a[n] = l;
NameLength += l;
PathLength += l;
while (l-- > 1) {
a[++n] = 0;
p++;
}
}
n++;
}
NameTooLong |= NameLength > NameMax;
// Limit names to NameMax:
if (NameTooLong) {
while (n > 0) {
// Calculate the length of the current name:
int NameLength = 0;
int i = n;
int b = i;
while (i-- > 0 && a[i] >= 0) {
NameLength += a[i];
b = i;
}
// Shorten the name if necessary:
if (NameLength > NameMax) {
int l = 0;
i = n;
while (i-- > 0 && a[i] >= 0) {
l += a[i];
if (NameLength - l <= NameMax) {
memmove(s + i, s + n, Length - n + 1);
memmove(a + i, a + n, Length - n + 1);
Length -= n - i;
PathLength -= l;
break;
}
}
}
// Switch to the next name:
n = b - 1;
}
}
// Limit path to PathMax:
n = Length;
while (PathLength > PathMax && n > 0) {
// Calculate how much to cut off the current name:
int i = n;
int b = i;
int l = 0;
while (--i > 0 && a[i - 1] >= 0) {
if (a[i] > 0) {
l += a[i];
b = i;
if (PathLength - l <= PathMax)
break;
}
}
// Shorten the name if necessary:
if (l > 0) {
memmove(s + b, s + n, Length - n + 1);
Length -= n - b;
PathLength -= l;
}
// Switch to the next name:
n = i - 1;
}
return s;
}
cRecording::cRecording(cTimer *Timer, const cEvent *Event)
{
resume = RESUME_NOT_INITIALIZED;
titleBuffer = NULL;
sortBufferName = sortBufferTime = NULL;
fileName = NULL;
name = NULL;
fileSizeMB = -1; // unknown
channel = Timer->Channel()->Number();
instanceId = InstanceId;
isPesRecording = false;
isOnVideoDirectoryFileSystem = -1; // unknown
framesPerSecond = DEFAULTFRAMESPERSECOND;
numFrames = -1;
deleted = 0;
// set up the actual name:
const char *Title = Event ? Event->Title() : NULL;
const char *Subtitle = Event ? Event->ShortText() : NULL;
if (isempty(Title))
Title = Timer->Channel()->Name();
if (isempty(Subtitle))
Subtitle = " ";
const char *macroTITLE = strstr(Timer->File(), TIMERMACRO_TITLE);
const char *macroEPISODE = strstr(Timer->File(), TIMERMACRO_EPISODE);
if (macroTITLE || macroEPISODE) {
name = strdup(Timer->File());
name = strreplace(name, TIMERMACRO_TITLE, Title);
name = strreplace(name, TIMERMACRO_EPISODE, Subtitle);
// avoid blanks at the end:
int l = strlen(name);
while (l-- > 2) {
if (name[l] == ' ' && name[l - 1] != FOLDERDELIMCHAR)
name[l] = 0;
else
break;
}
if (Timer->IsSingleEvent()) {
Timer->SetFile(name); // this was an instant recording, so let's set the actual data
Timers.SetModified();
}
}
else if (Timer->IsSingleEvent() || !Setup.UseSubtitle)
name = strdup(Timer->File());
else
name = strdup(cString::sprintf("%s~%s", Timer->File(), Subtitle));
// substitute characters that would cause problems in file names:
strreplace(name, '\n', ' ');
start = Timer->StartTime();
priority = Timer->Priority();
lifetime = Timer->Lifetime();
// handle info:
info = new cRecordingInfo(Timer->Channel(), Event);
info->SetAux(Timer->Aux());
info->priority = priority;
info->lifetime = lifetime;
}
cRecording::cRecording(const char *FileName)
{
resume = RESUME_NOT_INITIALIZED;
fileSizeMB = -1; // unknown
channel = -1;
instanceId = -1;
priority = MAXPRIORITY; // assume maximum in case there is no info file
lifetime = MAXLIFETIME;
isPesRecording = false;
isOnVideoDirectoryFileSystem = -1; // unknown
framesPerSecond = DEFAULTFRAMESPERSECOND;
numFrames = -1;
deleted = 0;
titleBuffer = NULL;
sortBufferName = sortBufferTime = NULL;
FileName = fileName = strdup(FileName);
if (*(fileName + strlen(fileName) - 1) == '/')
*(fileName + strlen(fileName) - 1) = 0;
if (strstr(FileName, VideoDirectory) == FileName)
FileName += strlen(VideoDirectory) + 1;
const char *p = strrchr(FileName, '/');
name = NULL;
info = new cRecordingInfo(fileName);
if (p) {
time_t now = time(NULL);
struct tm tm_r;
struct tm t = *localtime_r(&now, &tm_r); // this initializes the time zone in 't'
t.tm_isdst = -1; // makes sure mktime() will determine the correct DST setting
if (7 == sscanf(p + 1, DATAFORMATTS, &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &channel, &instanceId)
|| 7 == sscanf(p + 1, DATAFORMATPES, &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &priority, &lifetime)) {
t.tm_year -= 1900;
t.tm_mon--;
t.tm_sec = 0;
start = mktime(&t);
name = MALLOC(char, p - FileName + 1);
strncpy(name, FileName, p - FileName);
name[p - FileName] = 0;
name = ExchangeChars(name, false);
isPesRecording = instanceId < 0;
}
else
return;
GetResume();
// read an optional info file:
cString InfoFileName = cString::sprintf("%s%s", fileName, isPesRecording ? INFOFILESUFFIX ".vdr" : INFOFILESUFFIX);
FILE *f = fopen(InfoFileName, "r");
if (f) {
if (!info->Read(f))
esyslog("ERROR: EPG data problem in file %s", *InfoFileName);
else if (!isPesRecording) {
priority = info->priority;
lifetime = info->lifetime;
framesPerSecond = info->framesPerSecond;
}
fclose(f);
}
else if (errno == ENOENT)
info->ownEvent->SetTitle(name);
else
LOG_ERROR_STR(*InfoFileName);
#ifdef SUMMARYFALLBACK
// fall back to the old 'summary.vdr' if there was no 'info.vdr':
if (isempty(info->Title())) {
cString SummaryFileName = cString::sprintf("%s%s", fileName, SUMMARYFILESUFFIX);
FILE *f = fopen(SummaryFileName, "r");
if (f) {
int line = 0;
char *data[3] = { NULL };
cReadLine ReadLine;
char *s;
while ((s = ReadLine.Read(f)) != NULL) {
if (*s || line > 1) {
if (data[line]) {
int len = strlen(s);
len += strlen(data[line]) + 1;
if (char *NewBuffer = (char *)realloc(data[line], len + 1)) {
data[line] = NewBuffer;
strcat(data[line], "\n");
strcat(data[line], s);
}
else
esyslog("ERROR: out of memory");
}
else
data[line] = strdup(s);
}
else
line++;
}
fclose(f);
if (!data[2]) {
data[2] = data[1];
data[1] = NULL;
}
else if (data[1] && data[2]) {
// if line 1 is too long, it can't be the short text,
// so assume the short text is missing and concatenate
// line 1 and line 2 to be the long text:
int len = strlen(data[1]);
if (len > 80) {
if (char *NewBuffer = (char *)realloc(data[1], len + 1 + strlen(data[2]) + 1)) {
data[1] = NewBuffer;
strcat(data[1], "\n");
strcat(data[1], data[2]);
free(data[2]);
data[2] = data[1];
data[1] = NULL;
}
else
esyslog("ERROR: out of memory");
}
}
info->SetData(data[0], data[1], data[2]);
for (int i = 0; i < 3; i ++)
free(data[i]);
}
else if (errno != ENOENT)
LOG_ERROR_STR(*SummaryFileName);
}
#endif
}
}
cRecording::~cRecording()
{
free(titleBuffer);
free(sortBufferName);
free(sortBufferTime);
free(fileName);
free(name);
delete info;
}
char *cRecording::StripEpisodeName(char *s, bool Strip)
{
char *t = s, *s1 = NULL, *s2 = NULL;
while (*t) {
if (*t == '/') {
if (s1) {
if (s2)
s1 = s2;
s2 = t;
}
else
s1 = t;
}
t++;
}
if (s1 && s2) {
// To have folders sorted before plain recordings, the '/' s1 points to
// is replaced by the character '1'. All other slashes will be replaced
// by '0' in SortName() (see below), which will result in the desired
// sequence:
*s1 = '1';
if (Strip) {
s1++;
memmove(s1, s2, t - s2 + 1);
}
}
return s;
}
char *cRecording::SortName(void) const
{
char **sb = (RecordingsSortMode == rsmName) ? &sortBufferName : &sortBufferTime;
if (!*sb) {
char *s = strdup(FileName() + strlen(VideoDirectory));
if (RecordingsSortMode != rsmName || Setup.AlwaysSortFoldersFirst)
s = StripEpisodeName(s, RecordingsSortMode != rsmName);
strreplace(s, '/', '0'); // some locales ignore '/' when sorting
int l = strxfrm(NULL, s, 0) + 1;
*sb = MALLOC(char, l);
strxfrm(*sb, s, l);
free(s);
}
return *sb;
}
void cRecording::ClearSortName(void)
{
DELETENULL(sortBufferName);
DELETENULL(sortBufferTime);
}
int cRecording::GetResume(void) const
{
if (resume == RESUME_NOT_INITIALIZED) {
cResumeFile ResumeFile(FileName(), isPesRecording);
resume = ResumeFile.Read();
}
return resume;
}
int cRecording::Compare(const cListObject &ListObject) const
{
cRecording *r = (cRecording *)&ListObject;
return strcasecmp(SortName(), r->SortName());
}
const char *cRecording::FileName(void) const
{
if (!fileName) {
struct tm tm_r;
struct tm *t = localtime_r(&start, &tm_r);
const char *fmt = isPesRecording ? NAMEFORMATPES : NAMEFORMATTS;
int ch = isPesRecording ? priority : channel;
int ri = isPesRecording ? lifetime : instanceId;
char *Name = LimitNameLengths(strdup(name), DirectoryPathMax - strlen(VideoDirectory) - 1 - 42, DirectoryNameMax); // 42 = length of an actual recording directory name (generated with DATAFORMATTS) plus some reserve
if (strcmp(Name, name) != 0)
dsyslog("recording file name '%s' truncated to '%s'", name, Name);
Name = ExchangeChars(Name, true);
fileName = strdup(cString::sprintf(fmt, VideoDirectory, Name, t->tm_year + 1900, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, ch, ri));
free(Name);
}
return fileName;
}
const char *cRecording::Title(char Delimiter, bool NewIndicator, int Level) const
{
char New = NewIndicator && IsNew() ? '*' : ' ';
free(titleBuffer);
titleBuffer = NULL;
if (Level < 0 || Level == HierarchyLevels()) {
struct tm tm_r;
struct tm *t = localtime_r(&start, &tm_r);
char *s;
if (Level > 0 && (s = strrchr(name, FOLDERDELIMCHAR)) != NULL)
s++;
else
s = name;
cString Length("");
if (NewIndicator) {
int Minutes = max(0, (LengthInSeconds() + 30) / 60);
Length = cString::sprintf("%c%d:%02d",
Delimiter,
Minutes / 60,
Minutes % 60
);
}
titleBuffer = strdup(cString::sprintf("%02d.%02d.%02d%c%02d:%02d%s%c%c%s",
t->tm_mday,
t->tm_mon + 1,
t->tm_year % 100,
Delimiter,
t->tm_hour,
t->tm_min,
*Length,
New,
Delimiter,
s));
// let's not display a trailing FOLDERDELIMCHAR:
if (!NewIndicator)
stripspace(titleBuffer);
s = &titleBuffer[strlen(titleBuffer) - 1];
if (*s == FOLDERDELIMCHAR)
*s = 0;
}
else if (Level < HierarchyLevels()) {
const char *s = name;
const char *p = s;
while (*++s) {
if (*s == FOLDERDELIMCHAR) {
if (Level--)
p = s + 1;
else
break;
}
}
titleBuffer = MALLOC(char, s - p + 3);
*titleBuffer = Delimiter;
*(titleBuffer + 1) = Delimiter;
strn0cpy(titleBuffer + 2, p, s - p + 1);
}
else
return "";
return titleBuffer;
}
const char *cRecording::PrefixFileName(char Prefix)
{
cString p = PrefixVideoFileName(FileName(), Prefix);
if (*p) {
free(fileName);
fileName = strdup(p);
return fileName;
}
return NULL;
}
int cRecording::HierarchyLevels(void) const
{
const char *s = name;
int level = 0;
while (*++s) {
if (*s == FOLDERDELIMCHAR)
level++;
}
return level;
}
bool cRecording::IsEdited(void) const
{
const char *s = strrchr(name, FOLDERDELIMCHAR);
s = !s ? name : s + 1;
return *s == '%';
}
bool cRecording::IsOnVideoDirectoryFileSystem(void) const
{
if (isOnVideoDirectoryFileSystem < 0)
isOnVideoDirectoryFileSystem = ::IsOnVideoDirectoryFileSystem(FileName());
return isOnVideoDirectoryFileSystem;
}
void cRecording::ReadInfo(void)
{
info->Read();
priority = info->priority;
lifetime = info->lifetime;
framesPerSecond = info->framesPerSecond;
}
bool cRecording::WriteInfo(void)
{
cString InfoFileName = cString::sprintf("%s%s", fileName, isPesRecording ? INFOFILESUFFIX ".vdr" : INFOFILESUFFIX);
FILE *f = fopen(InfoFileName, "w");
if (f) {
info->Write(f);
fclose(f);
}
else
LOG_ERROR_STR(*InfoFileName);
return true;
}
void cRecording::SetStartTime(time_t Start)
{
start = Start;
free(fileName);
fileName = NULL;
}
bool cRecording::Delete(void)
{
bool result = true;
char *NewName = strdup(FileName());
char *ext = strrchr(NewName, '.');
if (ext && strcmp(ext, RECEXT) == 0) {
strncpy(ext, DELEXT, strlen(ext));
if (access(NewName, F_OK) == 0) {
// the new name already exists, so let's remove that one first:
isyslog("removing recording '%s'", NewName);
RemoveVideoFile(NewName);
}
isyslog("deleting recording '%s'", FileName());
if (access(FileName(), F_OK) == 0) {
result = RenameVideoFile(FileName(), NewName);
cRecordingUserCommand::InvokeCommand(RUC_DELETERECORDING, NewName);
}
else {
isyslog("recording '%s' vanished", FileName());
result = true; // well, we were going to delete it, anyway
}
}
free(NewName);
return result;
}
bool cRecording::Remove(void)
{
// let's do a final safety check here:
if (!endswith(FileName(), DELEXT)) {
esyslog("attempt to remove recording %s", FileName());
return false;
}
isyslog("removing recording %s", FileName());
return RemoveVideoFile(FileName());
}
bool cRecording::Undelete(void)
{
bool result = true;
char *NewName = strdup(FileName());
char *ext = strrchr(NewName, '.');
if (ext && strcmp(ext, DELEXT) == 0) {
strncpy(ext, RECEXT, strlen(ext));
if (access(NewName, F_OK) == 0) {
// the new name already exists, so let's not remove that one:
esyslog("ERROR: attempt to undelete '%s', while recording '%s' exists", FileName(), NewName);
result = false;
}
else {
isyslog("undeleting recording '%s'", FileName());
if (access(FileName(), F_OK) == 0)
result = RenameVideoFile(FileName(), NewName);
else {
isyslog("deleted recording '%s' vanished", FileName());
result = false;
}
}
}
free(NewName);
return result;
}
void cRecording::ResetResume(void) const
{
resume = RESUME_NOT_INITIALIZED;
}
int cRecording::NumFrames(void) const
{
if (numFrames < 0) {
int nf = cIndexFile::GetLength(FileName(), IsPesRecording());
if (time(NULL) - LastModifiedTime(cIndexFile::IndexFileName(FileName(), IsPesRecording())) < MININDEXAGE)
return nf; // check again later for ongoing recordings
numFrames = nf;
}
return numFrames;
}
int cRecording::LengthInSeconds(void) const
{
int nf = NumFrames();
if (nf >= 0)
return int(nf / FramesPerSecond());
return -1;
}
int cRecording::FileSizeMB(void) const
{
if (fileSizeMB < 0) {
int fs = DirSizeMB(FileName());
if (time(NULL) - LastModifiedTime(cIndexFile::IndexFileName(FileName(), IsPesRecording())) < MININDEXAGE)
return fs; // check again later for ongoing recordings
fileSizeMB = fs;
}
return fileSizeMB;
}
// --- cRecordings -----------------------------------------------------------
cRecordings Recordings;
char *cRecordings::updateFileName = NULL;
cRecordings::cRecordings(bool Deleted)
:cThread("video directory scanner")
{
deleted = Deleted;
lastUpdate = 0;
state = 0;
}
cRecordings::~cRecordings()
{
Cancel(3);
}
void cRecordings::Action(void)
{
Refresh();
}
const char *cRecordings::UpdateFileName(void)
{
if (!updateFileName)
updateFileName = strdup(AddDirectory(VideoDirectory, ".update"));
return updateFileName;
}
void cRecordings::Refresh(bool Foreground)
{
lastUpdate = time(NULL); // doing this first to make sure we don't miss anything
Lock();
Clear();
ChangeState();
Unlock();
ScanVideoDir(VideoDirectory, Foreground);
}
void cRecordings::ScanVideoDir(const char *DirName, bool Foreground, int LinkLevel)
{
cReadDir d(DirName);
struct dirent *e;
while ((Foreground || Running()) && (e = d.Next()) != NULL) {
cString buffer = AddDirectory(DirName, e->d_name);
struct stat st;
if (lstat(buffer, &st) == 0) {
int Link = 0;
if (S_ISLNK(st.st_mode)) {
if (LinkLevel > MAX_LINK_LEVEL) {
isyslog("max link level exceeded - not scanning %s", *buffer);
continue;
}
Link = 1;
if (stat(buffer, &st) != 0)
continue;
}
if (S_ISDIR(st.st_mode)) {
if (endswith(buffer, deleted ? DELEXT : RECEXT)) {
cRecording *r = new cRecording(buffer);
if (r->Name()) {
r->NumFrames(); // initializes the numFrames member
r->FileSizeMB(); // initializes the fileSizeMB member
if (deleted)
r->deleted = time(NULL);
Lock();
Add(r);
ChangeState();
Unlock();
}
else
delete r;
}
else
ScanVideoDir(buffer, Foreground, LinkLevel + Link);
}
}
}
}
bool cRecordings::StateChanged(int &State)
{
int NewState = state;
bool Result = State != NewState;
State = state;
return Result;
}
void cRecordings::TouchUpdate(void)
{
bool needsUpdate = NeedsUpdate();
TouchFile(UpdateFileName());
if (!needsUpdate)
lastUpdate = time(NULL); // make sure we don't trigger ourselves
}
bool cRecordings::NeedsUpdate(void)
{
time_t lastModified = LastModifiedTime(UpdateFileName());
if (lastModified > time(NULL))
return false; // somebody's clock isn't running correctly
return lastUpdate < lastModified;
}
bool cRecordings::Update(bool Wait)
{
if (Wait) {
Refresh(true);
return Count() > 0;
}
else
Start();
return false;
}
cRecording *cRecordings::GetByName(const char *FileName)
{
if (FileName) {
for (cRecording *recording = First(); recording; recording = Next(recording)) {
if (strcmp(recording->FileName(), FileName) == 0)
return recording;
}
}
return NULL;
}
void cRecordings::AddByName(const char *FileName, bool TriggerUpdate)
{
LOCK_THREAD;
cRecording *recording = GetByName(FileName);
if (!recording) {
recording = new cRecording(FileName);
Add(recording);
ChangeState();
if (TriggerUpdate)
TouchUpdate();
}
}
void cRecordings::DelByName(const char *FileName)
{
LOCK_THREAD;
cRecording *recording = GetByName(FileName);
if (recording) {
cThreadLock DeletedRecordingsLock(&DeletedRecordings);
Del(recording, false);
char *ext = strrchr(recording->fileName, '.');
if (ext) {
strncpy(ext, DELEXT, strlen(ext));
if (access(recording->FileName(), F_OK) == 0) {
recording->deleted = time(NULL);
DeletedRecordings.Add(recording);
recording = NULL; // to prevent it from being deleted below
}
}
delete recording;
ChangeState();
TouchUpdate();
}
}
void cRecordings::UpdateByName(const char *FileName)
{
LOCK_THREAD;
cRecording *recording = GetByName(FileName);
if (recording)
recording->ReadInfo();
}
int cRecordings::TotalFileSizeMB(void)
{
int size = 0;
LOCK_THREAD;
for (cRecording *recording = First(); recording; recording = Next(recording)) {
int FileSizeMB = recording->FileSizeMB();
if (FileSizeMB > 0 && recording->IsOnVideoDirectoryFileSystem())
size += FileSizeMB;
}
return size;
}
double cRecordings::MBperMinute(void)
{
int size = 0;
int length = 0;
LOCK_THREAD;
for (cRecording *recording = First(); recording; recording = Next(recording)) {
if (recording->IsOnVideoDirectoryFileSystem()) {
int FileSizeMB = recording->FileSizeMB();
if (FileSizeMB > 0) {
int LengthInSeconds = recording->LengthInSeconds();
if (LengthInSeconds > 0) {
size += FileSizeMB;
length += LengthInSeconds;
}
}
}
}
return (size && length) ? double(size) * 60 / length : -1;
}
void cRecordings::ResetResume(const char *ResumeFileName)
{
LOCK_THREAD;
for (cRecording *recording = First(); recording; recording = Next(recording)) {
if (!ResumeFileName || strncmp(ResumeFileName, recording->FileName(), strlen(recording->FileName())) == 0)
recording->ResetResume();
}
ChangeState();
}
void cRecordings::ClearSortNames(void)
{
LOCK_THREAD;
for (cRecording *recording = First(); recording; recording = Next(recording))
recording->ClearSortName();
}
// --- cMark -----------------------------------------------------------------
double MarkFramesPerSecond = DEFAULTFRAMESPERSECOND;
cMutex MutexMarkFramesPerSecond;
cMark::cMark(int Position, const char *Comment, double FramesPerSecond)
{
position = Position;
comment = Comment;
framesPerSecond = FramesPerSecond;
}
cMark::~cMark()
{
}
cString cMark::ToText(void)
{
return cString::sprintf("%s%s%s\n", *IndexToHMSF(position, true, framesPerSecond), Comment() ? " " : "", Comment() ? Comment() : "");
}
bool cMark::Parse(const char *s)
{
comment = NULL;
framesPerSecond = MarkFramesPerSecond;
position = HMSFToIndex(s, framesPerSecond);
const char *p = strchr(s, ' ');
if (p) {
p = skipspace(p);
if (*p)
comment = strdup(p);
}
return true;
}
bool cMark::Save(FILE *f)
{
return fprintf(f, "%s", *ToText()) > 0;
}
// --- cMarks ----------------------------------------------------------------
bool cMarks::Load(const char *RecordingFileName, double FramesPerSecond, bool IsPesRecording)
{
recordingFileName = RecordingFileName;
fileName = AddDirectory(RecordingFileName, IsPesRecording ? MARKSFILESUFFIX ".vdr" : MARKSFILESUFFIX);
framesPerSecond = FramesPerSecond;
isPesRecording = IsPesRecording;
nextUpdate = 0;
lastFileTime = -1; // the first call to Load() must take place!
lastChange = 0;
return Update();
}
bool cMarks::Update(void)
{
time_t t = time(NULL);
if (t > nextUpdate) {
time_t LastModified = LastModifiedTime(fileName);
if (LastModified != lastFileTime) // change detected, or first run
lastChange = LastModified > 0 ? LastModified : t;
int d = t - lastChange;
if (d < 60)
d = 1; // check frequently if the file has just been modified
else if (d < 3600)
d = 10; // older files are checked less frequently
else
d /= 360; // phase out checking for very old files
nextUpdate = t + d;
if (LastModified != lastFileTime) { // change detected, or first run
lastFileTime = LastModified;
if (lastFileTime == t)
lastFileTime--; // make sure we don't miss updates in the remaining second
cMutexLock MutexLock(&MutexMarkFramesPerSecond);
MarkFramesPerSecond = framesPerSecond;
if (cConfig<cMark>::Load(fileName)) {
Align();
Sort();
return true;
}
}
}
return false;
}
bool cMarks::Save(void)
{
if (cConfig<cMark>::Save()) {
lastFileTime = LastModifiedTime(fileName);
return true;
}
return false;
}
void cMarks::Align(void)
{
cIndexFile IndexFile(recordingFileName, false, isPesRecording);
for (cMark *m = First(); m; m = Next(m)) {
int p = IndexFile.GetClosestIFrame(m->Position());
if (int d = m->Position() - p) {
isyslog("aligned editing mark %s to %s (off by %d frame%s)", *IndexToHMSF(m->Position(), true, framesPerSecond), *IndexToHMSF(p, true, framesPerSecond), d, abs(d) > 1 ? "s" : "");
m->SetPosition(p);
}
}
}
void cMarks::Sort(void)
{
for (cMark *m1 = First(); m1; m1 = Next(m1)) {
for (cMark *m2 = Next(m1); m2; m2 = Next(m2)) {
if (m2->Position() < m1->Position()) {
swap(m1->position, m2->position);
swap(m1->comment, m2->comment);
}
}
}
}
void cMarks::Add(int Position)
{
cConfig<cMark>::Add(new cMark(Position, NULL, framesPerSecond));
Sort();
}
cMark *cMarks::Get(int Position)
{
for (cMark *mi = First(); mi; mi = Next(mi)) {
if (mi->Position() == Position)
return mi;
}
return NULL;
}
cMark *cMarks::GetPrev(int Position)
{
for (cMark *mi = Last(); mi; mi = Prev(mi)) {
if (mi->Position() < Position)
return mi;
}
return NULL;
}
cMark *cMarks::GetNext(int Position)
{
for (cMark *mi = First(); mi; mi = Next(mi)) {
if (mi->Position() > Position)
return mi;
}
return NULL;
}
cMark *cMarks::GetNextBegin(cMark *EndMark)
{
cMark *BeginMark = EndMark ? Next(EndMark) : First();
if (BeginMark) {
while (cMark *NextMark = Next(BeginMark)) {
if (BeginMark->Position() == NextMark->Position()) { // skip Begin/End at the same position
if (!(BeginMark = Next(NextMark)))
break;
}
else
break;
}
}
return BeginMark;
}
cMark *cMarks::GetNextEnd(cMark *BeginMark)
{
if (!BeginMark)
return NULL;
cMark *EndMark = Next(BeginMark);
if (EndMark) {
while (cMark *NextMark = Next(EndMark)) {
if (EndMark->Position() == NextMark->Position()) { // skip End/Begin at the same position
if (!(EndMark = Next(NextMark)))
break;
}
else
break;
}
}
return EndMark;
}
int cMarks::GetNumSequences(void)
{
int NumSequences = 0;
if (cMark *BeginMark = GetNextBegin()) {
while (cMark *EndMark = GetNextEnd(BeginMark)) {
NumSequences++;
BeginMark = GetNextBegin(EndMark);
}
if (BeginMark) {
NumSequences++; // the last sequence had no actual "end" mark
if (NumSequences == 1 && BeginMark->Position() == 0)
NumSequences = 0; // there is only one actual "begin" mark at offset zero, and no actual "end" mark
}
}
return NumSequences;
}
// --- cRecordingUserCommand -------------------------------------------------
const char *cRecordingUserCommand::command = NULL;
void cRecordingUserCommand::InvokeCommand(const char *State, const char *RecordingFileName, const char *SourceFileName)
{
if (command) {
cString cmd;
if (SourceFileName)
cmd = cString::sprintf("%s %s \"%s\" \"%s\"", command, State, *strescape(RecordingFileName, "\\\"$"), *strescape(SourceFileName, "\\\"$"));
else
cmd = cString::sprintf("%s %s \"%s\"", command, State, *strescape(RecordingFileName, "\\\"$"));
isyslog("executing '%s'", *cmd);
SystemExec(cmd);
}
}
// --- cIndexFileGenerator ---------------------------------------------------
#define IFG_BUFFER_SIZE KILOBYTE(100)
class cIndexFileGenerator : public cThread {
private:
cString recordingName;
protected:
virtual void Action(void);
public:
cIndexFileGenerator(const char *RecordingName);
~cIndexFileGenerator();
};
cIndexFileGenerator::cIndexFileGenerator(const char *RecordingName)
:cThread("index file generator")
,recordingName(RecordingName)
{
Start();
}
cIndexFileGenerator::~cIndexFileGenerator()
{
Cancel(3);
}
void cIndexFileGenerator::Action(void)
{
bool IndexFileComplete = false;
bool IndexFileWritten = false;
bool Rewind = false;
cFileName FileName(recordingName, false);
cUnbufferedFile *ReplayFile = FileName.Open();
cRingBufferLinear Buffer(IFG_BUFFER_SIZE, MIN_TS_PACKETS_FOR_FRAME_DETECTOR * TS_SIZE);
cPatPmtParser PatPmtParser;
cFrameDetector FrameDetector;
cIndexFile IndexFile(recordingName, true);
int BufferChunks = KILOBYTE(1); // no need to read a lot at the beginning when parsing PAT/PMT
off_t FileSize = 0;
off_t FrameOffset = -1;
Skins.QueueMessage(mtInfo, tr("Regenerating index file"));
while (Running()) {
// Rewind input file:
if (Rewind) {
ReplayFile = FileName.SetOffset(1);
Buffer.Clear();
Rewind = false;
}
// Process data:
int Length;
uchar *Data = Buffer.Get(Length);
if (Data) {
if (FrameDetector.Synced()) {
// Step 3 - generate the index:
if (TsPid(Data) == PATPID)
FrameOffset = FileSize; // the PAT/PMT is at the beginning of an I-frame
int Processed = FrameDetector.Analyze(Data, Length);
if (Processed > 0) {
if (FrameDetector.NewFrame()) {
IndexFile.Write(FrameDetector.IndependentFrame(), FileName.Number(), FrameOffset >= 0 ? FrameOffset : FileSize);
FrameOffset = -1;
IndexFileWritten = true;
}
FileSize += Processed;
Buffer.Del(Processed);
}
}
else if (PatPmtParser.Vpid()) {
// Step 2 - sync FrameDetector:
int Processed = FrameDetector.Analyze(Data, Length);
if (Processed > 0) {
if (FrameDetector.Synced()) {
// Synced FrameDetector, so rewind for actual processing:
Rewind = true;
}
Buffer.Del(Processed);
}
}
else {
// Step 1 - parse PAT/PMT:
uchar *p = Data;
while (Length >= TS_SIZE) {
int Pid = TsPid(p);
if (Pid == PATPID)
PatPmtParser.ParsePat(p, TS_SIZE);
else if (PatPmtParser.IsPmtPid(Pid))
PatPmtParser.ParsePmt(p, TS_SIZE);
Length -= TS_SIZE;
p += TS_SIZE;
if (PatPmtParser.Vpid()) {
// Found Vpid, so rewind to sync FrameDetector:
FrameDetector.SetPid(PatPmtParser.Vpid(), PatPmtParser.Vtype());
BufferChunks = IFG_BUFFER_SIZE;
Rewind = true;
break;
}
}
Buffer.Del(p - Data);
}
}
// Read data:
else if (ReplayFile) {
int Result = Buffer.Read(ReplayFile, BufferChunks);
if (Result == 0) { // EOF
ReplayFile = FileName.NextFile();
FileSize = 0;
FrameOffset = -1;
Buffer.Clear();
}
}
// Recording has been processed:
else {
IndexFileComplete = true;
break;
}
}
if (IndexFileComplete) {
if (IndexFileWritten) {
cRecordingInfo RecordingInfo(recordingName);
if (RecordingInfo.Read()) {
if (FrameDetector.FramesPerSecond() > 0 && !DoubleEqual(RecordingInfo.FramesPerSecond(), FrameDetector.FramesPerSecond())) {
RecordingInfo.SetFramesPerSecond(FrameDetector.FramesPerSecond());
RecordingInfo.Write();
Recordings.UpdateByName(recordingName);
}
}
Skins.QueueMessage(mtInfo, tr("Index file regeneration complete"));
return;
}
else
Skins.QueueMessage(mtError, tr("Index file regeneration failed!"));
}
// Delete the index file if the recording has not been processed entirely:
IndexFile.Delete();
}
// --- cIndexFile ------------------------------------------------------------
#define INDEXFILESUFFIX "/index"
// The maximum time to wait before giving up while catching up on an index file:
#define MAXINDEXCATCHUP 8 // number of retries
#define INDEXCATCHUPWAIT 100 // milliseconds
struct tIndexPes {
uint32_t offset;
uchar type;
uchar number;
uint16_t reserved;
};
struct tIndexTs {
uint64_t offset:40; // up to 1TB per file (not using off_t here - must definitely be exactly 64 bit!)
int reserved:7; // reserved for future use
int independent:1; // marks frames that can be displayed by themselves (for trick modes)
uint16_t number:16; // up to 64K files per recording
tIndexTs(off_t Offset, bool Independent, uint16_t Number)
{
offset = Offset;
reserved = 0;
independent = Independent;
number = Number;
}
};
#define MAXWAITFORINDEXFILE 10 // max. time to wait for the regenerated index file (seconds)
#define INDEXFILECHECKINTERVAL 500 // ms between checks for existence of the regenerated index file
#define INDEXFILETESTINTERVAL 10 // ms between tests for the size of the index file in case of pausing live video
cIndexFile::cIndexFile(const char *FileName, bool Record, bool IsPesRecording, bool PauseLive)
:resumeFile(FileName, IsPesRecording)
{
f = -1;
size = 0;
last = -1;
index = NULL;
isPesRecording = IsPesRecording;
indexFileGenerator = NULL;
if (FileName) {
fileName = IndexFileName(FileName, isPesRecording);
if (!Record && PauseLive) {
// Wait until the index file contains at least two frames:
time_t tmax = time(NULL) + MAXWAITFORINDEXFILE;
while (time(NULL) < tmax && FileSize(fileName) < off_t(2 * sizeof(tIndexTs)))
cCondWait::SleepMs(INDEXFILETESTINTERVAL);
}
int delta = 0;
if (!Record && access(fileName, R_OK) != 0) {
// Index file doesn't exist, so try to regenerate it:
if (!isPesRecording) { // sorry, can only do this for TS recordings
resumeFile.Delete(); // just in case
indexFileGenerator = new cIndexFileGenerator(FileName);
// Wait until the index file exists:
time_t tmax = time(NULL) + MAXWAITFORINDEXFILE;
do {
cCondWait::SleepMs(INDEXFILECHECKINTERVAL); // start with a sleep, to give it a head start
} while (access(fileName, R_OK) != 0 && time(NULL) < tmax);
}
}
if (access(fileName, R_OK) == 0) {
struct stat buf;
if (stat(fileName, &buf) == 0) {
delta = int(buf.st_size % sizeof(tIndexTs));
if (delta) {
delta = sizeof(tIndexTs) - delta;
esyslog("ERROR: invalid file size (%"PRId64") in '%s'", buf.st_size, *fileName);
}
last = int((buf.st_size + delta) / sizeof(tIndexTs) - 1);
if (!Record && last >= 0) {
size = last + 1;
index = MALLOC(tIndexTs, size);
if (index) {
f = open(fileName, O_RDONLY);
if (f >= 0) {
if (safe_read(f, index, size_t(buf.st_size)) != buf.st_size) {
esyslog("ERROR: can't read from file '%s'", *fileName);
free(index);
index = NULL;
}
else if (isPesRecording)
ConvertFromPes(index, size);
if (!index || time(NULL) - buf.st_mtime >= MININDEXAGE) {
close(f);
f = -1;
}
// otherwise we don't close f here, see CatchUp()!
}
else
LOG_ERROR_STR(*fileName);
}
else
esyslog("ERROR: can't allocate %zd bytes for index '%s'", size * sizeof(tIndexTs), *fileName);
}
}
else
LOG_ERROR;
}
else if (!Record)
isyslog("missing index file %s", *fileName);
if (Record) {
if ((f = open(fileName, O_WRONLY | O_CREAT | O_APPEND, DEFFILEMODE)) >= 0) {
if (delta) {
esyslog("ERROR: padding index file with %d '0' bytes", delta);
while (delta--)
writechar(f, 0);
}
}
else
LOG_ERROR_STR(*fileName);
}
}
}
cIndexFile::~cIndexFile()
{
if (f >= 0)
close(f);
free(index);
delete indexFileGenerator;
}
cString cIndexFile::IndexFileName(const char *FileName, bool IsPesRecording)
{
return cString::sprintf("%s%s", FileName, IsPesRecording ? INDEXFILESUFFIX ".vdr" : INDEXFILESUFFIX);
}
void cIndexFile::ConvertFromPes(tIndexTs *IndexTs, int Count)
{
tIndexPes IndexPes;
while (Count-- > 0) {
memcpy(&IndexPes, IndexTs, sizeof(IndexPes));
IndexTs->offset = IndexPes.offset;
IndexTs->independent = IndexPes.type == 1; // I_FRAME
IndexTs->number = IndexPes.number;
IndexTs++;
}
}
void cIndexFile::ConvertToPes(tIndexTs *IndexTs, int Count)
{
tIndexPes IndexPes;
while (Count-- > 0) {
IndexPes.offset = uint32_t(IndexTs->offset);
IndexPes.type = uchar(IndexTs->independent ? 1 : 2); // I_FRAME : "not I_FRAME" (exact frame type doesn't matter)
IndexPes.number = uchar(IndexTs->number);
IndexPes.reserved = 0;
memcpy(IndexTs, &IndexPes, sizeof(*IndexTs));
IndexTs++;
}
}
bool cIndexFile::CatchUp(int Index)
{
// returns true unless something really goes wrong, so that 'index' becomes NULL
if (index && f >= 0) {
cMutexLock MutexLock(&mutex);
// Note that CatchUp() is triggered even if Index is 'last' (and thus valid).
// This is done to make absolutely sure we don't miss any data at the very end.
for (int i = 0; i <= MAXINDEXCATCHUP && (Index < 0 || Index >= last); i++) {
struct stat buf;
if (fstat(f, &buf) == 0) {
int newLast = int(buf.st_size / sizeof(tIndexTs) - 1);
if (newLast > last) {
int NewSize = size;
if (NewSize <= newLast) {
NewSize *= 2;
if (NewSize <= newLast)
NewSize = newLast + 1;
}
if (tIndexTs *NewBuffer = (tIndexTs *)realloc(index, NewSize * sizeof(tIndexTs))) {
size = NewSize;
index = NewBuffer;
int offset = (last + 1) * sizeof(tIndexTs);
int delta = (newLast - last) * sizeof(tIndexTs);
if (lseek(f, offset, SEEK_SET) == offset) {
if (safe_read(f, &index[last + 1], delta) != delta) {
esyslog("ERROR: can't read from index");
free(index);
index = NULL;
close(f);
f = -1;
break;
}
if (isPesRecording)
ConvertFromPes(&index[last + 1], newLast - last);
last = newLast;
}
else
LOG_ERROR_STR(*fileName);
}
else {
esyslog("ERROR: can't realloc() index");
break;
}
}
}
else
LOG_ERROR_STR(*fileName);
if (Index < last)
break;
cCondVar CondVar;
CondVar.TimedWait(mutex, INDEXCATCHUPWAIT);
}
}
return index != NULL;
}
bool cIndexFile::Write(bool Independent, uint16_t FileNumber, off_t FileOffset)
{
if (f >= 0) {
tIndexTs i(FileOffset, Independent, FileNumber);
if (isPesRecording)
ConvertToPes(&i, 1);
if (safe_write(f, &i, sizeof(i)) < 0) {
LOG_ERROR_STR(*fileName);
close(f);
f = -1;
return false;
}
last++;
}
return f >= 0;
}
bool cIndexFile::Get(int Index, uint16_t *FileNumber, off_t *FileOffset, bool *Independent, int *Length)
{
if (CatchUp(Index)) {
if (Index >= 0 && Index <= last) {
*FileNumber = index[Index].number;
*FileOffset = index[Index].offset;
if (Independent)
*Independent = index[Index].independent;
if (Length) {
if (Index < last) {
uint16_t fn = index[Index + 1].number;
off_t fo = index[Index + 1].offset;
if (fn == *FileNumber)
*Length = int(fo - *FileOffset);
else
*Length = -1; // this means "everything up to EOF" (the buffer's Read function will act accordingly)
}
else
*Length = -1;
}
return true;
}
}
return false;
}
int cIndexFile::GetNextIFrame(int Index, bool Forward, uint16_t *FileNumber, off_t *FileOffset, int *Length)
{
if (CatchUp()) {
int d = Forward ? 1 : -1;
for (;;) {
Index += d;
if (Index >= 0 && Index <= last) {
if (index[Index].independent) {
uint16_t fn;
if (!FileNumber)
FileNumber = &fn;
off_t fo;
if (!FileOffset)
FileOffset = &fo;
*FileNumber = index[Index].number;
*FileOffset = index[Index].offset;
if (Length) {
if (Index < last) {
uint16_t fn = index[Index + 1].number;
off_t fo = index[Index + 1].offset;
if (fn == *FileNumber)
*Length = int(fo - *FileOffset);
else
*Length = -1; // this means "everything up to EOF" (the buffer's Read function will act accordingly)
}
else
*Length = -1;
}
return Index;
}
}
else
break;
}
}
return -1;
}
int cIndexFile::GetClosestIFrame(int Index)
{
if (last > 0) {
Index = constrain(Index, 0, last);
if (index[Index].independent)
return Index;
int il = Index - 1;
int ih = Index + 1;
for (;;) {
if (il >= 0) {
if (index[il].independent)
return il;
il--;
}
else if (ih > last)
break;
if (ih <= last) {
if (index[ih].independent)
return ih;
ih++;
}
else if (il < 0)
break;
}
}
return 0;
}
int cIndexFile::Get(uint16_t FileNumber, off_t FileOffset)
{
if (CatchUp()) {
//TODO implement binary search!
int i;
for (i = 0; i <= last; i++) {
if (index[i].number > FileNumber || (index[i].number == FileNumber) && off_t(index[i].offset) >= FileOffset)
break;
}
return i;
}
return -1;
}
bool cIndexFile::IsStillRecording()
{
return f >= 0;
}
void cIndexFile::Delete(void)
{
if (*fileName) {
dsyslog("deleting index file '%s'", *fileName);
if (f >= 0) {
close(f);
f = -1;
}
unlink(fileName);
}
}
int cIndexFile::GetLength(const char *FileName, bool IsPesRecording)
{
struct stat buf;
cString s = IndexFileName(FileName, IsPesRecording);
if (*s && stat(s, &buf) == 0)
return buf.st_size / (IsPesRecording ? sizeof(tIndexTs) : sizeof(tIndexPes));
return -1;
}
bool GenerateIndex(const char *FileName)
{
if (DirectoryOk(FileName)) {
cRecording Recording(FileName);
if (Recording.Name()) {
if (!Recording.IsPesRecording()) {
cString IndexFileName = AddDirectory(FileName, INDEXFILESUFFIX);
unlink(IndexFileName);
cIndexFileGenerator *IndexFileGenerator = new cIndexFileGenerator(FileName);
while (IndexFileGenerator->Active())
cCondWait::SleepMs(INDEXFILECHECKINTERVAL);
if (access(IndexFileName, R_OK) == 0)
return true;
else
fprintf(stderr, "cannot create '%s'\n", *IndexFileName);
}
else
fprintf(stderr, "'%s' is not a TS recording\n", FileName);
}
else
fprintf(stderr, "'%s' is not a recording\n", FileName);
}
else
fprintf(stderr, "'%s' is not a directory\n", FileName);
return false;
}
// --- cFileName -------------------------------------------------------------
#define MAXFILESPERRECORDINGPES 255
#define RECORDFILESUFFIXPES "/%03d.vdr"
#define MAXFILESPERRECORDINGTS 65535
#define RECORDFILESUFFIXTS "/%05d.ts"
#define RECORDFILESUFFIXLEN 20 // some additional bytes for safety...
cFileName::cFileName(const char *FileName, bool Record, bool Blocking, bool IsPesRecording)
{
file = NULL;
fileNumber = 0;
record = Record;
blocking = Blocking;
isPesRecording = IsPesRecording;
// Prepare the file name:
fileName = MALLOC(char, strlen(FileName) + RECORDFILESUFFIXLEN);
if (!fileName) {
esyslog("ERROR: can't copy file name '%s'", fileName);
return;
}
strcpy(fileName, FileName);
pFileNumber = fileName + strlen(fileName);
SetOffset(1);
}
cFileName::~cFileName()
{
Close();
free(fileName);
}
bool cFileName::GetLastPatPmtVersions(int &PatVersion, int &PmtVersion)
{
if (fileName && !isPesRecording) {
// Find the last recording file:
int Number = 1;
for (; Number <= MAXFILESPERRECORDINGTS + 1; Number++) { // +1 to correctly set Number in case there actually are that many files
sprintf(pFileNumber, RECORDFILESUFFIXTS, Number);
if (access(fileName, F_OK) != 0) { // file doesn't exist
Number--;
break;
}
}
for (; Number > 0; Number--) {
// Search for a PAT packet from the end of the file:
cPatPmtParser PatPmtParser;
sprintf(pFileNumber, RECORDFILESUFFIXTS, Number);
int fd = open(fileName, O_RDONLY | O_LARGEFILE, DEFFILEMODE);
if (fd >= 0) {
off_t pos = lseek(fd, -TS_SIZE, SEEK_END);
while (pos >= 0) {
// Read and parse the PAT/PMT:
uchar buf[TS_SIZE];
while (read(fd, buf, sizeof(buf)) == sizeof(buf)) {
if (buf[0] == TS_SYNC_BYTE) {
int Pid = TsPid(buf);
if (Pid == PATPID)
PatPmtParser.ParsePat(buf, sizeof(buf));
else if (PatPmtParser.IsPmtPid(Pid)) {
PatPmtParser.ParsePmt(buf, sizeof(buf));
if (PatPmtParser.GetVersions(PatVersion, PmtVersion)) {
close(fd);
return true;
}
}
else
break; // PAT/PMT is always in one sequence
}
else
return false;
}
pos = lseek(fd, pos - TS_SIZE, SEEK_SET);
}
close(fd);
}
else
break;
}
}
return false;
}
cUnbufferedFile *cFileName::Open(void)
{
if (!file) {
int BlockingFlag = blocking ? 0 : O_NONBLOCK;
if (record) {
dsyslog("recording to '%s'", fileName);
file = OpenVideoFile(fileName, O_RDWR | O_CREAT | O_LARGEFILE | BlockingFlag);
if (!file)
LOG_ERROR_STR(fileName);
}
else {
if (access(fileName, R_OK) == 0) {
dsyslog("playing '%s'", fileName);
file = cUnbufferedFile::Create(fileName, O_RDONLY | O_LARGEFILE | BlockingFlag);
if (!file)
LOG_ERROR_STR(fileName);
}
else if (errno != ENOENT)
LOG_ERROR_STR(fileName);
}
}
return file;
}
void cFileName::Close(void)
{
if (file) {
if (CloseVideoFile(file) < 0)
LOG_ERROR_STR(fileName);
file = NULL;
}
}
cUnbufferedFile *cFileName::SetOffset(int Number, off_t Offset)
{
if (fileNumber != Number)
Close();
int MaxFilesPerRecording = isPesRecording ? MAXFILESPERRECORDINGPES : MAXFILESPERRECORDINGTS;
if (0 < Number && Number <= MaxFilesPerRecording) {
fileNumber = uint16_t(Number);
sprintf(pFileNumber, isPesRecording ? RECORDFILESUFFIXPES : RECORDFILESUFFIXTS, fileNumber);
if (record) {
if (access(fileName, F_OK) == 0) {
// file exists, check if it has non-zero size
struct stat buf;
if (stat(fileName, &buf) == 0) {
if (buf.st_size != 0)
return SetOffset(Number + 1); // file exists and has non zero size, let's try next suffix
else {
// zero size file, remove it
dsyslog("cFileName::SetOffset: removing zero-sized file %s", fileName);
unlink(fileName);
}
}
else
return SetOffset(Number + 1); // error with fstat - should not happen, just to be on the safe side
}
else if (errno != ENOENT) { // something serious has happened
LOG_ERROR_STR(fileName);
return NULL;
}
// found a non existing file suffix
}
if (Open() >= 0) {
if (!record && Offset >= 0 && file && file->Seek(Offset, SEEK_SET) != Offset) {
LOG_ERROR_STR(fileName);
return NULL;
}
}
return file;
}
esyslog("ERROR: max number of files (%d) exceeded", MaxFilesPerRecording);
return NULL;
}
cUnbufferedFile *cFileName::NextFile(void)
{
return SetOffset(fileNumber + 1);
}
// --- Index stuff -----------------------------------------------------------
cString IndexToHMSF(int Index, bool WithFrame, double FramesPerSecond)
{
const char *Sign = "";
if (Index < 0) {
Index = -Index;
Sign = "-";
}
double Seconds;
int f = int(modf((Index + 0.5) / FramesPerSecond, &Seconds) * FramesPerSecond + 1);
int s = int(Seconds);
int m = s / 60 % 60;
int h = s / 3600;
s %= 60;
return cString::sprintf(WithFrame ? "%s%d:%02d:%02d.%02d" : "%s%d:%02d:%02d", Sign, h, m, s, f);
}
int HMSFToIndex(const char *HMSF, double FramesPerSecond)
{
int h, m, s, f = 1;
int n = sscanf(HMSF, "%d:%d:%d.%d", &h, &m, &s, &f);
if (n == 1)
return h - 1; // plain frame number
if (n >= 3)
return int(round((h * 3600 + m * 60 + s) * FramesPerSecond)) + f - 1;
return 0;
}
int SecondsToFrames(int Seconds, double FramesPerSecond)
{
return int(round(Seconds * FramesPerSecond));
}
// --- ReadFrame -------------------------------------------------------------
int ReadFrame(cUnbufferedFile *f, uchar *b, int Length, int Max)
{
if (Length == -1)
Length = Max; // this means we read up to EOF (see cIndex)
else if (Length > Max) {
esyslog("ERROR: frame larger than buffer (%d > %d)", Length, Max);
Length = Max;
}
int r = f->Read(b, Length);
if (r < 0)
LOG_ERROR;
return r;
}
// --- Recordings Sort Mode --------------------------------------------------
eRecordingsSortMode RecordingsSortMode = rsmName;
bool HasRecordingsSortMode(const char *Directory)
{
return access(AddDirectory(Directory, SORTMODEFILE), R_OK) == 0;
}
void GetRecordingsSortMode(const char *Directory)
{
if (FILE *f = fopen(AddDirectory(Directory, SORTMODEFILE), "r")) {
char buf[8];
if (fgets(buf, sizeof(buf), f))
RecordingsSortMode = eRecordingsSortMode(constrain(atoi(buf), 0, int(rsmTime)));
fclose(f);
}
}
void SetRecordingsSortMode(const char *Directory, eRecordingsSortMode SortMode)
{
if (FILE *f = fopen(AddDirectory(Directory, SORTMODEFILE), "w")) {
fputs(cString::sprintf("%d\n", SortMode), f);
fclose(f);
}
}
void IncRecordingsSortMode(const char *Directory)
{
GetRecordingsSortMode(Directory);
RecordingsSortMode = eRecordingsSortMode(int(RecordingsSortMode) + 1);
if (RecordingsSortMode > rsmTime)
RecordingsSortMode = eRecordingsSortMode(0);
SetRecordingsSortMode(Directory, RecordingsSortMode);
}
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