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Code Issues Releases Wiki Activity

Setting the "broken link" or "TEI" flags when cutting recordings is now suppressed if the editing point merges two seamlessly fitting parts of the same stream

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This commit is contained in:
Klaus Schmidinger 2012-06-10 14:33:36 +02:00
parent 6dec09a376
commit 478027b5e9
3 changed files with 34 additions and 3 deletions
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2
CONTRIBUTORS
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@ -2873,6 +2873,8 @@ Torsten Lang <info@torstenlang.de>
for reporting a bug in checking for UTF-8 support in cFont::Bidi()
for a patch that was used to implement caching the information whether a recording
is stored on the video directory file system within the cRecording data
for suppressing setting the "broken link" or "TEI" flags when cutting recordings
if the editing point merges two seamlessly fitting parts of the same stream
Christian Ruppert <idl0r@gentoo.org>
for some improvements to the Makefiles

3
HISTORY
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@ -7179,3 +7179,6 @@ Video Disk Recorder Revision History
- Fixed handling recording with more than two bonded devices.
- Fixed the type of MBperMinute in cVideoDiskUsage::HasChanged() (thanks to Andreas
Mair).
- Setting the "broken link" or "TEI" flags when cutting recordings is now suppressed
if the editing point merges two seamlessly fitting parts of the same stream (thanks
to Torsten Lang).

32
cutter.c
View File

@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: cutter.c 2.12 2012/06/02 13:46:55 kls Exp $
* $Id: cutter.c 2.13 2012/06/10 14:33:36 kls Exp $
*/
#include "cutter.h"
@ -83,7 +83,9 @@ void cCuttingThread::Action(void)
int LastIFrame = 0;
toMarks.Add(0);
toMarks.Save();
uchar buffer[MAXFRAMESIZE];
uchar buffer[MAXFRAMESIZE], buffer2[MAXFRAMESIZE];
int Length2;
bool CheckForSeamlessStream = false;
bool LastMark = false;
bool cutIn = true;
while (Running()) {
@ -142,7 +144,21 @@ void cCuttingThread::Action(void)
FileSize = 0;
}
LastIFrame = 0;
// Compare the current frame with the previously stored one, to see if this is a seamlessly merged recording of the same stream:
if (CheckForSeamlessStream) {
if (Length == Length2) {
int diffs = 0;
for (int i = 0; i < Length; i++) {
if (buffer[i] != buffer2[i]) {
if (diffs++ > 10)
break;
}
}
if (diffs < 10) // the continuity counters of the PAT/PMT packets may differ
cutIn = false; // it's apparently a seamless stream, so no need for "broken" handling
}
CheckForSeamlessStream = false;
}
if (cutIn) {
if (isPesRecording)
cRemux::SetBrokenLink(buffer, Length);
@ -172,6 +188,16 @@ void cCuttingThread::Action(void)
toMarks.Add(toIndex->Last() + 1);
toMarks.Save();
if (Mark) {
// Read the next frame, for later comparison with the first frame at this mark:
if (fromIndex->Get(Index, &FileNumber, &FileOffset, &Independent, &Length2)) {
if (FileNumber != CurrentFileNumber)
fromFile = fromFileName->SetOffset(FileNumber, FileOffset);
if (fromFile) {
int len = ReadFrame(fromFile, buffer2, Length2, sizeof(buffer2));
if (len >= 0 && len == Length2)
CheckForSeamlessStream = true;
}
}
Index = Mark->Position();
Mark = fromMarks.Next(Mark);
CurrentFileNumber = 0; // triggers SetOffset before reading next frame