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Code Issues Releases Wiki Activity

Improved cDvbDevice::StillPicture()

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This commit is contained in:
Klaus Schmidinger 2003-10-19 11:43:07 +02:00
parent f1a4d067be
commit 262c266637
3 changed files with 15 additions and 7 deletions
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4
HISTORY
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@ -2433,3 +2433,7 @@ Video Disk Recorder Revision History
full (suggested by Emil Naepflein).
- Channel IDs are now checked when reading 'channels.conf' to avoid later
problems with timers.
2003-10-19: Version 1.2.6pre2
- Improved cDvbDevice::StillPicture() (thanks to Thomas Heiligenmann).

4
config.h
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: config.h 1.176 2003/10/17 12:35:23 kls Exp $
* $Id: config.h 1.176.1.1 2003/10/19 11:43:07 kls Exp $
*/
#ifndef __CONFIG_H
@ -19,7 +19,7 @@
#include "device.h"
#include "tools.h"
#define VDRVERSION "1.2.6pre1"
#define VDRVERSION "1.2.6pre2"
#define VDRVERSNUM 10206 // Version * 10000 + Major * 100 + Minor
#define MAXPRIORITY 99

14
dvbdevice.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.c 1.67 2003/10/17 15:36:13 kls Exp $
* $Id: dvbdevice.c 1.67.1.1 2003/10/19 11:41:07 kls Exp $
*/
#include "dvbdevice.h"
@ -957,10 +957,14 @@ void cDvbDevice::StillPicture(const uchar *Data, int Length)
// skip header extension
if ((Data[i + 6] & 0xC0) == 0x80) {
// MPEG-2 PES header
if (Data[i + 8] >= Length)
break;
offs += 3;
offs += Data[i + 8];
len -= 3;
len -= Data[i + 8];
if (len < 0 || offs + len >= Length)
break;
}
else {
// MPEG-1 PES header
@ -968,19 +972,19 @@ void cDvbDevice::StillPicture(const uchar *Data, int Length)
offs++;
len--;
}
if ((Data[offs] & 0xC0) == 0x40) {
if (offs <= Length - 2 && len >= 2 && (Data[offs] & 0xC0) == 0x40) {
offs += 2;
len -= 2;
}
if ((Data[offs] & 0xF0) == 0x20) {
if (offs <= Length - 5 && len >= 5 && (Data[offs] & 0xF0) == 0x20) {
offs += 5;
len -= 5;
}
else if ((Data[offs] & 0xF0) == 0x30) {
else if (offs <= Length - 10 && len >= 10 && (Data[offs] & 0xF0) == 0x30) {
offs += 10;
len -= 10;
}
else if (Data[offs] == 0x0F) {
else if (offs < Length && len > 0) {
offs++;
len--;
}