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vdr/recording.c

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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 3.26 2015/02/06 15:13:59 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 "cutter.h"
#include "i18n.h"
#include "interface.h"
#include "menu.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 MAXREMOVETIME 10 // seconds after which to return from removing deleted recordings
#define MAX_LINK_LEVEL 6
#define LIMIT_SECS_PER_MB_RADIO 5 // radio recordings typically have more than this
int DirectoryPathMax = PATH_MAX - 1;
int DirectoryNameMax = NAME_MAX;
bool DirectoryEncoding = false;
int InstanceId = 0;
cRecordings DeletedRecordings(true);
static cRecordings VanishedRecordings;
// --- 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(cVideoDirectory::Name());
if (LockFile.Lock()) {
time_t StartTime = time(NULL);
bool deleted = false;
cThreadLock DeletedRecordingsLock(&DeletedRecordings);
for (cRecording *r = DeletedRecordings.First(); r; ) {
if (cIoThrottle::Engaged())
return;
if (time(NULL) - StartTime > MAXREMOVETIME)
return; // don't stay here too long
if (cRemote::HasKeys())
return; // react immediately on user input
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 };
cVideoDirectory::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 (!cVideoDirectory::VideoFileSpaceAvailable(MINDISKSPACE)) {
// Make sure only one instance of VDR does this:
cLockFile LockFile(cVideoDirectory::Name());
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);
}
}
// --- Clear vanished recordings ---------------------------------------------
void ClearVanishedRecordings(void)
{
cThreadLock RecordingsLock(&Recordings); // yes, it *is* Recordings!
VanishedRecordings.Clear();
}
// --- 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;
}
void cRecordingInfo::SetFileName(const char *FileName)
{
bool IsPesRecording = fileName && endswith(fileName, ".vdr");
free(fileName);
fileName = strdup(cString::sprintf("%s%s", FileName, IsPesRecording ? INFOFILESUFFIX ".vdr" : INFOFILESUFFIX));
}
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%c%s", Timer->File(), FOLDERDELIMCHAR, 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, cVideoDirectory::Name()) == FileName)
FileName += strlen(cVideoDirectory::Name()) + 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) {
if (RecordingsSortMode == rsmTime && !Setup.RecordingDirs) {
char buf[32];
struct tm tm_r;
strftime(buf, sizeof(buf), "%Y%m%d%H%I", localtime_r(&start, &tm_r));
*sb = strdup(buf);
}
else {
char *s = strdup(FileName() + strlen(cVideoDirectory::Name()));
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)
{
free(sortBufferName);
free(sortBufferTime);
sortBufferName = sortBufferTime = NULL;
}
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());
}
bool cRecording::IsInPath(const char *Path)
{
if (isempty(Path))
return true;
int l = strlen(Path);
return strncmp(Path, name, l) == 0 && (name[l] == FOLDERDELIMCHAR);
}
cString cRecording::Folder(void) const
{
if (char *s = strrchr(name, FOLDERDELIMCHAR))
return cString(name, s);
return "";
}
cString cRecording::BaseName(void) const
{
if (char *s = strrchr(name, FOLDERDELIMCHAR))
return cString(s + 1);
return name;
}
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(cVideoDirectory::Name()) - 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, cVideoDirectory::Name(), 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 = cVideoDirectory::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 = cVideoDirectory::IsOnVideoDirectoryFileSystem(FileName());
return isOnVideoDirectoryFileSystem;
}
bool cRecording::HasMarks(void)
{
return access(cMarks::MarksFileName(this), F_OK) == 0;
}
bool cRecording::DeleteMarks(void)
{
if (remove(cMarks::MarksFileName(this)) < 0) {
if (errno != ENOENT) {
LOG_ERROR_STR(fileName);
return false;
}
}
return true;
}
void cRecording::ReadInfo(void)
{
info->Read();
priority = info->priority;
lifetime = info->lifetime;
framesPerSecond = info->framesPerSecond;
}
bool cRecording::WriteInfo(const char *OtherFileName)
{
cString InfoFileName = cString::sprintf("%s%s", OtherFileName ? OtherFileName : FileName(), isPesRecording ? INFOFILESUFFIX ".vdr" : INFOFILESUFFIX);
cSafeFile f(InfoFileName);
if (f.Open()) {
info->Write(f);
f.Close();
}
else
LOG_ERROR_STR(*InfoFileName);
return true;
}
void cRecording::SetStartTime(time_t Start)
{
start = Start;
free(fileName);
fileName = NULL;
}
bool cRecording::ChangePriorityLifetime(int NewPriority, int NewLifetime)
{
if (NewPriority != Priority() || NewLifetime != Lifetime()) {
dsyslog("changing priority/lifetime of '%s' to %d/%d", Name(), NewPriority, NewLifetime);
if (IsPesRecording()) {
cString OldFileName = FileName();
priority = NewPriority;
lifetime = NewLifetime;
free(fileName);
fileName = NULL;
cString NewFileName = FileName();
if (!cVideoDirectory::RenameVideoFile(OldFileName, NewFileName))
return false;
info->SetFileName(NewFileName);
}
else {
priority = info->priority = NewPriority;
lifetime = info->lifetime = NewLifetime;
if (!WriteInfo())
return false;
}
Recordings.ChangeState();
Recordings.TouchUpdate();
}
return true;
}
bool cRecording::ChangeName(const char *NewName)
{
if (strcmp(NewName, Name())) {
dsyslog("changing name of '%s' to '%s'", Name(), NewName);
cString OldName = Name();
cString OldFileName = FileName();
free(fileName);
fileName = NULL;
free(name);
name = strdup(NewName);
cString NewFileName = FileName();
if (!(MakeDirs(NewFileName, true) && cVideoDirectory::MoveVideoFile(OldFileName, NewFileName))) {
free(name);
name = strdup(OldName);
free(fileName);
fileName = strdup(OldFileName);
return false;
}
isOnVideoDirectoryFileSystem = -1; // it might have been moved to a different file system
ClearSortName();
Recordings.ChangeState();
Recordings.TouchUpdate();
}
return true;
}
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);
cVideoDirectory::RemoveVideoFile(NewName);
}
isyslog("deleting recording '%s'", FileName());
if (access(FileName(), F_OK) == 0) {
result = cVideoDirectory::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 cVideoDirectory::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 = cVideoDirectory::RenameVideoFile(FileName(), NewName);
else {
isyslog("deleted recording '%s' vanished", FileName());
result = false;
}
}
}
free(NewName);
return result;
}
int cRecording::IsInUse(void) const
{
int Use = ruNone;
if (cRecordControls::GetRecordControl(FileName()))
Use |= ruTimer;
if (cReplayControl::NowReplaying() && strcmp(cReplayControl::NowReplaying(), FileName()) == 0)
Use |= ruReplay;
Use |= RecordingsHandler.GetUsage(FileName());
return Use;
}
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;
initial = true;
lastUpdate = 0;
state = 0;
}
cRecordings::~cRecordings()
{
Cancel(3);
}
void cRecordings::Action(void)
{
Refresh();
}
const char *cRecordings::UpdateFileName(void)
{
if (!updateFileName)
updateFileName = strdup(AddDirectory(cVideoDirectory::Name(), ".update"));
return updateFileName;
}
void cRecordings::Refresh(bool Foreground)
{
lastUpdate = time(NULL); // doing this first to make sure we don't miss anything
initial = Count() == 0; // no name checking if the list is initially empty
if (deleted) {
Lock();
Clear();
ChangeState();
Unlock();
}
ScanVideoDir(cVideoDirectory::Name(), Foreground);
}
bool cRecordings::ScanVideoDir(const char *DirName, bool Foreground, int LinkLevel, int DirLevel)
{
bool DoChangeState = false;
// Find any new recordings:
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)) {
if (deleted || initial || !GetByName(buffer)) {
cRecording *r = new cRecording(buffer);
if (r->Name()) {
r->NumFrames(); // initializes the numFrames member
r->FileSizeMB(); // initializes the fileSizeMB member
r->IsOnVideoDirectoryFileSystem(); // initializes the isOnVideoDirectoryFileSystem member
if (deleted)
r->deleted = time(NULL);
Lock();
Add(r);
if (initial)
ChangeState();
else
DoChangeState = true;
Unlock();
}
else
delete r;
}
}
else
DoChangeState |= ScanVideoDir(buffer, Foreground, LinkLevel + Link, DirLevel + 1);
}
}
}
// Handle any vanished recordings:
if (!deleted && !initial && DirLevel == 0) {
for (cRecording *recording = First(); recording; ) {
cRecording *r = recording;
recording = Next(recording);
if (access(r->FileName(), F_OK) != 0) {
Lock();
Del(r, false);
VanishedRecordings.Add(r);
DoChangeState = true;
Unlock();
}
}
}
if (DoChangeState && DirLevel == 0)
ChangeState();
return DoChangeState;
}
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) {
LOCK_THREAD;
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);
cRecording *dummy = NULL;
if (!recording)
recording = dummy = new cRecording(FileName); // allows us to use a FileName that is not in the Recordings list
cThreadLock DeletedRecordingsLock(&DeletedRecordings);
if (!dummy)
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) {
if (LengthInSeconds / FileSizeMB < LIMIT_SECS_PER_MB_RADIO) { // don't count radio recordings
size += FileSizeMB;
length += LengthInSeconds;
}
}
}
}
}
return (size && length) ? double(size) * 60 / length : -1;
}
int cRecordings::PathIsInUse(const char *Path)
{
LOCK_THREAD;
int Use = ruNone;
for (cRecording *recording = First(); recording; recording = Next(recording)) {
if (recording->IsInPath(Path))
Use |= recording->IsInUse();
}
return Use;
}
int cRecordings::GetNumRecordingsInPath(const char *Path)
{
LOCK_THREAD;
int n = 0;
for (cRecording *recording = First(); recording; recording = Next(recording)) {
if (recording->IsInPath(Path))
n++;
}
return n;
}
bool cRecordings::MoveRecordings(const char *OldPath, const char *NewPath)
{
if (OldPath && NewPath && strcmp(OldPath, NewPath)) {
LOCK_THREAD;
dsyslog("moving '%s' to '%s'", OldPath, NewPath);
for (cRecording *recording = First(); recording; recording = Next(recording)) {
if (recording->IsInPath(OldPath)) {
const char *p = recording->Name() + strlen(OldPath);
cString NewName = cString::sprintf("%s%s", NewPath, p);
if (!recording->ChangeName(NewName))
return false;
ChangeState();
}
}
}
return true;
}
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();
}
// --- cDirCopier ------------------------------------------------------------
class cDirCopier : public cThread {
private:
cString dirNameSrc;
cString dirNameDst;
bool error;
bool suspensionLogged;
bool Throttled(void);
virtual void Action(void);
public:
cDirCopier(const char *DirNameSrc, const char *DirNameDst);
virtual ~cDirCopier();
void Stop(void);
bool Error(void) { return error; }
};
cDirCopier::cDirCopier(const char *DirNameSrc, const char *DirNameDst)
:cThread("file copier", true)
{
dirNameSrc = DirNameSrc;
dirNameDst = DirNameDst;
error = false;
suspensionLogged = false;
}
cDirCopier::~cDirCopier()
{
Stop();
}
bool cDirCopier::Throttled(void)
{
if (cIoThrottle::Engaged()) {
if (!suspensionLogged) {
dsyslog("suspending copy thread");
suspensionLogged = true;
}
return true;
}
else if (suspensionLogged) {
dsyslog("resuming copy thread");
suspensionLogged = false;
}
return false;
}
void cDirCopier::Action(void)
{
if (DirectoryOk(dirNameDst, true)) {
cReadDir d(dirNameSrc);
if (d.Ok()) {
dsyslog("copying directory '%s' to '%s'", *dirNameSrc, *dirNameDst);
dirent *e = NULL;
cString FileNameSrc;
cString FileNameDst;
int From = -1;
int To = -1;
size_t BufferSize = BUFSIZ;
while (Running()) {
// Suspend cutting if we have severe throughput problems:
if (Throttled()) {
cCondWait::SleepMs(100);
continue;
}
// Copy all files in the source directory to the destination directory:
if (e) {
// We're currently copying a file:
uchar Buffer[BufferSize];
size_t Read = safe_read(From, Buffer, sizeof(Buffer));
if (Read > 0) {
size_t Written = safe_write(To, Buffer, Read);
if (Written != Read) {
esyslog("ERROR: can't write to destination file '%s': %m", *FileNameDst);
break;
}
}
else if (Read == 0) { // EOF on From
e = NULL; // triggers switch to next entry
if (fsync(To) < 0) {
esyslog("ERROR: can't sync destination file '%s': %m", *FileNameDst);
break;
}
if (close(From) < 0) {
esyslog("ERROR: can't close source file '%s': %m", *FileNameSrc);
break;
}
if (close(To) < 0) {
esyslog("ERROR: can't close destination file '%s': %m", *FileNameDst);
break;
}
// Plausibility check:
off_t FileSizeSrc = FileSize(FileNameSrc);
off_t FileSizeDst = FileSize(FileNameDst);
if (FileSizeSrc != FileSizeDst) {
esyslog("ERROR: file size discrepancy: %" PRId64 " != %" PRId64, FileSizeSrc, FileSizeDst);
break;
}
}
else {
esyslog("ERROR: can't read from source file '%s': %m", *FileNameSrc);
break;
}
}
else if ((e = d.Next()) != NULL) {
// We're switching to the next directory entry:
FileNameSrc = AddDirectory(dirNameSrc, e->d_name);
FileNameDst = AddDirectory(dirNameDst, e->d_name);
struct stat st;
if (stat(FileNameSrc, &st) < 0) {
esyslog("ERROR: can't access source file '%s': %m", *FileNameSrc);
break;
}
if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))) {
esyslog("ERROR: source file '%s' is neither a regular file nor a symbolic link", *FileNameSrc);
break;
}
dsyslog("copying file '%s' to '%s'", *FileNameSrc, *FileNameDst);
BufferSize = max(size_t(st.st_blksize * 10), size_t(BUFSIZ));
if (access(FileNameDst, F_OK) == 0) {
esyslog("ERROR: destination file '%s' already exists", *FileNameDst);
break;
}
if ((From = open(FileNameSrc, O_RDONLY)) < 0) {
esyslog("ERROR: can't open source file '%s': %m", *FileNameSrc);
break;
}
if ((To = open(FileNameDst, O_WRONLY | O_CREAT | O_EXCL, DEFFILEMODE)) < 0) {
esyslog("ERROR: can't open destination file '%s': %m", *FileNameDst);
close(From);
break;
}
}
else {
// We're done:
dsyslog("done copying directory '%s' to '%s'", *dirNameSrc, *dirNameDst);
return;
}
}
close(From); // just to be absolutely sure
close(To);
esyslog("ERROR: copying directory '%s' to '%s' ended prematurely", *dirNameSrc, *dirNameDst);
}
else
esyslog("ERROR: can't open '%s'", *dirNameSrc);
}
else
esyslog("ERROR: can't access '%s'", *dirNameDst);
error = true;
}
void cDirCopier::Stop(void)
{
Cancel(3);
if (error) {
cVideoDirectory::RemoveVideoFile(dirNameDst);
Recordings.AddByName(dirNameSrc);
Recordings.DelByName(dirNameDst);
}
}
// --- cRecordingsHandlerEntry -----------------------------------------------
class cRecordingsHandlerEntry : public cListObject {
private:
int usage;
cString fileNameSrc;
cString fileNameDst;
cCutter *cutter;
cDirCopier *copier;
void ClearPending(void) { usage &= ~ruPending; }
public:
cRecordingsHandlerEntry(int Usage, const char *FileNameSrc, const char *FileNameDst);
~cRecordingsHandlerEntry();
int Usage(const char *FileName = NULL) const;
const char *FileNameSrc(void) const { return fileNameSrc; }
const char *FileNameDst(void) const { return fileNameDst; }
bool Active(bool &Error);
};
cRecordingsHandlerEntry::cRecordingsHandlerEntry(int Usage, const char *FileNameSrc, const char *FileNameDst)
{
usage = Usage;
fileNameSrc = FileNameSrc;
fileNameDst = FileNameDst;
cutter = NULL;
copier = NULL;
}
cRecordingsHandlerEntry::~cRecordingsHandlerEntry()
{
delete cutter;
delete copier;
}
int cRecordingsHandlerEntry::Usage(const char *FileName) const
{
int u = usage;
if (FileName && *FileName) {
if (strcmp(FileName, fileNameSrc) == 0)
u |= ruSrc;
else if (strcmp(FileName, fileNameDst) == 0)
u |= ruDst;
}
return u;
}
bool cRecordingsHandlerEntry::Active(bool &Error)
{
bool CopierFinishedOk = false;
// First test whether there is an ongoing operation:
if (cutter) {
if (cutter->Active())
return true;
Error |= cutter->Error();
delete cutter;
cutter = NULL;
}
else if (copier) {
if (copier->Active())
return true;
Error |= copier->Error();
CopierFinishedOk = !copier->Error();
delete copier;
copier = NULL;
}
// Now check if there is something to start:
if ((Usage() & ruPending) != 0) {
if ((Usage() & ruCut) != 0) {
cutter = new cCutter(FileNameSrc());
cutter->Start();
}
else if ((Usage() & (ruMove | ruCopy)) != 0) {
copier = new cDirCopier(FileNameSrc(), FileNameDst());
copier->Start();
}
ClearPending();
Recordings.ChangeState();
return true;
}
// Clean up:
if (CopierFinishedOk && (Usage() & ruMove) != 0) {
cRecording Recording(FileNameSrc());
if (Recording.Delete())
Recordings.DelByName(Recording.FileName());
}
Recordings.ChangeState();
Recordings.TouchUpdate();
return false;
}
// --- cRecordingsHandler ----------------------------------------------------
cRecordingsHandler RecordingsHandler;
cRecordingsHandler::cRecordingsHandler(void)
{
finished = true;
error = false;
}
cRecordingsHandler::~cRecordingsHandler()
{
}
cRecordingsHandlerEntry *cRecordingsHandler::Get(const char *FileName)
{
if (FileName && *FileName) {
for (cRecordingsHandlerEntry *r = operations.First(); r; r = operations.Next(r)) {
if (strcmp(FileName, r->FileNameSrc()) == 0 || strcmp(FileName, r->FileNameDst()) == 0)
return r;
}
}
return NULL;
}
bool cRecordingsHandler::Add(int Usage, const char *FileNameSrc, const char *FileNameDst)
{
dsyslog("recordings handler add %d '%s' '%s'", Usage, FileNameSrc, FileNameDst);
cMutexLock MutexLock(&mutex);
if (Usage == ruCut || Usage == ruMove || Usage == ruCopy) {
if (FileNameSrc && *FileNameSrc) {
if (Usage == ruCut || FileNameDst && *FileNameDst) {
cString fnd;
if (Usage == ruCut && !FileNameDst)
FileNameDst = fnd = cCutter::EditedFileName(FileNameSrc);
if (!Get(FileNameSrc) && !Get(FileNameDst)) {
Usage |= ruPending;
operations.Add(new cRecordingsHandlerEntry(Usage, FileNameSrc, FileNameDst));
finished = false;
Active(); // start it right away if possible
Recordings.ChangeState();
return true;
}
else
esyslog("ERROR: file name already present in recordings handler add %d '%s' '%s'", Usage, FileNameSrc, FileNameDst);
}
else
esyslog("ERROR: missing dst file name in recordings handler add %d '%s' '%s'", Usage, FileNameSrc, FileNameDst);
}
else
esyslog("ERROR: missing src file name in recordings handler add %d '%s' '%s'", Usage, FileNameSrc, FileNameDst);
}
else
esyslog("ERROR: invalid usage in recordings handler add %d '%s' '%s'", Usage, FileNameSrc, FileNameDst);
return false;
}
void cRecordingsHandler::Del(const char *FileName)
{
cMutexLock MutexLock(&mutex);
if (cRecordingsHandlerEntry *r = Get(FileName)) {
operations.Del(r);
Recordings.ChangeState();
}
}
void cRecordingsHandler::DelAll(void)
{
cMutexLock MutexLock(&mutex);
operations.Clear();
Recordings.ChangeState();
}
int cRecordingsHandler::GetUsage(const char *FileName)
{
cMutexLock MutexLock(&mutex);
if (cRecordingsHandlerEntry *r = Get(FileName))
return r->Usage(FileName);
return ruNone;
}
bool cRecordingsHandler::Active(void)
{
cMutexLock MutexLock(&mutex);
while (cRecordingsHandlerEntry *r = operations.First()) {
if (r->Active(error))
return true;
else
operations.Del(r);
}
return false;
}
bool cRecordingsHandler::Finished(bool &Error)
{
cMutexLock MutexLock(&mutex);
if (!finished && operations.Count() == 0) {
finished = true;
Error = error;
error = false;
return true;
}
return false;
}
// --- 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 ----------------------------------------------------------------
cString cMarks::MarksFileName(const cRecording *Recording)
{
return AddDirectory(Recording->FileName(), Recording->IsPesRecording() ? MARKSFILESUFFIX ".vdr" : MARKSFILESUFFIX);
}
bool cMarks::Load(const char *RecordingFileName, double FramesPerSecond, bool IsPesRecording)
{
cMutexLock MutexLock(this);
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)
{
cMutexLock MutexLock(this);
time_t t = time(NULL);
if (t > nextUpdate && *fileName) {
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)
{
cMutexLock MutexLock(this);
if (cConfig<cMark>::Save()) {
lastFileTime = LastModifiedTime(fileName);
return true;
}
return false;
}
void cMarks::Align(void)
{
cMutexLock MutexLock(this);
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)
{
cMutexLock MutexLock(this);
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)
{
cMutexLock MutexLock(this);
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 && EndMark && BeginMark->Position() == EndMark->Position()) {
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 && BeginMark && BeginMark->Position() == EndMark->Position()) {
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)
{
cMutexLock MutexLock(this);
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;
bool update;
protected:
virtual void Action(void);
public:
cIndexFileGenerator(const char *RecordingName, bool Update = false);
~cIndexFileGenerator();
};
cIndexFileGenerator::cIndexFileGenerator(const char *RecordingName, bool Update)
:cThread("index file generator")
,recordingName(RecordingName)
{
update = Update;
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, false, false, 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;
uint16_t FileNumber = 1;
off_t FileOffset = 0;
int Last = -1;
if (update) {
// Look for current index and position to end of it if present:
bool Independent;
int Length;
Last = IndexFile.Last();
if (Last >= 0 && !IndexFile.Get(Last, &FileNumber, &FileOffset, &Independent, &Length))
Last = -1; // reset Last if an error occurred
if (Last >= 0) {
Rewind = true;
isyslog("updating index file");
}
else
isyslog("generating index file");
}
Skins.QueueMessage(mtInfo, tr("Regenerating index file"));
bool Stuffed = false;
while (Running()) {
// Rewind input file:
if (Rewind) {
ReplayFile = FileName.SetOffset(FileNumber, FileOffset);
FileSize = FileOffset;
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()) {
if (IndexFileWritten || Last < 0) // check for first frame and do not write if in update mode
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
if (Buffer.Available() > 0 && !Stuffed) {
// So the last call to Buffer.Get() returned NULL, but there is still
// data in the buffer, and we're at the end of the current TS file.
// The remaining data in the buffer is less than what's needed for the
// frame detector to analyze frames, so we need to put some stuffing
// packets into the buffer to flush out the rest of the data (otherwise
// any frames within the remaining data would not be seen here):
uchar StuffingPacket[TS_SIZE] = { TS_SYNC_BYTE, 0xFF };
for (int i = 0; i <= MIN_TS_PACKETS_FOR_FRAME_DETECTOR; i++)
Buffer.Put(StuffingPacket, sizeof(StuffingPacket));
Stuffed = true;
}
else {
ReplayFile = FileName.NextFile();
FileSize = 0;
FrameOffset = -1;
Buffer.Clear();
Stuffed = false;
}
}
}
// 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, bool Update)
: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 || Update) && 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(void)
{
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, bool Update)
{
if (DirectoryOk(FileName)) {
cRecording Recording(FileName);
if (Recording.Name()) {
if (!Recording.IsPesRecording()) {
cString IndexFileName = AddDirectory(FileName, INDEXFILESUFFIX);
if (!Update)
unlink(IndexFileName);
cIndexFileGenerator *IndexFileGenerator = new cIndexFileGenerator(FileName, Update);
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 = cVideoDirectory::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 (file->Close() < 0)
LOG_ERROR_STR(fileName);
delete file;
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);
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 = 0;
int n = sscanf(HMSF, "%d:%d:%d.%d", &h, &m, &s, &f);
if (n == 1)
return h; // plain frame number
if (n >= 3)
return int(round((h * 3600 + m * 60 + s) * FramesPerSecond)) + f;
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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