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Code Issues Releases Wiki Activity

Fixed the "pre 1.3.19" compatibility mode for old Dolby Digital recordings

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This commit is contained in:
Klaus Schmidinger 2005-02-06 13:19:19 +01:00
parent 20b213201a
commit e57611dfd3
3 changed files with 12 additions and 4 deletions
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2
CONTRIBUTORS
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@ -267,6 +267,8 @@ Werner Fink <werner@suse.de>
for a patch that was used as a base for implementing a modified PES packet
handling in order to play AC3 audio over full featured DVB cards
for pointing out an error in masking SubStreamType in cDevice::PlayPesPacket()
for pointing out that the "pre 1.3.19" compatibility mode for old Dolby Digital
recordings can be triggered in the default branch
Rolf Hakenes <hakenes@hippomi.de>
for providing 'libdtv' and adapting the EIT mechanisms to it

2
HISTORY
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@ -3367,3 +3367,5 @@ Video Disk Recorder Revision History
that has DD and selecting the DD audio track).
- Removed 'flags' from tTrackId (thought we would need this, but apparently we don't).
- Making sure the "Mute" and "Volume+/-" keys don't interfere with digital audio.
- Fixed the "pre 1.3.19" compatibility mode for old Dolby Digital recordings (thanks
to Werner Fink for pointing out that this can be triggered in the default branch).

12
device.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: device.c 1.84 2005/02/06 12:30:01 kls Exp $
* $Id: device.c 1.85 2005/02/06 13:13:31 kls Exp $
*/
#include "device.h"
@ -857,9 +857,6 @@ int cDevice::PlayPesPacket(const uchar *Data, int Length, bool VideoOnly)
uchar SubStreamIndex = SubStreamId & 0x1F;
// Compatibility mode for old VDR recordings, where 0xBD was only AC3:
//TODO apparently this doesn't work for old ORF Dolby Digital recordings
if (!pre_1_3_19_PrivateStream && (Data[6] & 4) && Data[PayloadOffset] == 0x0B && Data[PayloadOffset + 1] == 0x77)
pre_1_3_19_PrivateStream = true;
if (pre_1_3_19_PrivateStream) {
SubStreamId = c;
SubStreamType = 0x80;
@ -885,6 +882,13 @@ int cDevice::PlayPesPacket(const uchar *Data, int Length, bool VideoOnly)
if (!VideoOnly && SubStreamId == availableTracks[currentAudioTrack].id)
w = PlayAudio(Start, d);
break;
default:
// Compatibility mode for old VDR recordings, where 0xBD was only AC3:
if (!pre_1_3_19_PrivateStream) {
dsyslog("switching to pre 1.3.19 Dolby Digital compatibility mode");
ClrAvailableTracks();
pre_1_3_19_PrivateStream = true;
}
}
}
break;