[mythtv-commits] mythtv commit: r27419 - in branches/release-0-24-fixes by markk

[mythtv at cvs.mythtv.org]

      Author: markk
        Date: 2010-12-02 15:10:13 +0000 (Thu, 02 Dec 2010)
New Revision: 27419
   Changeset: http://svn.mythtv.org/trac/changeset/27419

Log:

Backport r27381 from trunk to release-0-24-fixes

Refactor TeletextDecoder and TeletextScreen and add a new TeletextReader
class.

This follows the approach used in the other subtitle and caption classes
whereby the screen object handles OSD representation of the data, the
reader object holds the state and data and the decoder object feeds new
data into the reader.

This simplifies setup and initialisation of the teletext objects and
removes the requirement to lock the OSD from the decoder, which was
causing endless problems.

The previous behaviour of always decoding teletext packets is also
reinstated which radically improves responsiveness. Actually decoding
and parsing the packets is trivial for a modern processor and hence
should have no impact on performance.

Closes #9271


Added:

   branches/release-0-24-fixes/mythtv/libs/libmythtv/teletextreader.cpp
   branches/release-0-24-fixes/mythtv/libs/libmythtv/teletextreader.h

Modified:

   branches/release-0-24-fixes/
   branches/release-0-24-fixes/mythtv/libs/libmythtv/avformatdecoder.cpp
   branches/release-0-24-fixes/mythtv/libs/libmythtv/avformatdecoder.h
   branches/release-0-24-fixes/mythtv/libs/libmythtv/decoderbase.h
   branches/release-0-24-fixes/mythtv/libs/libmythtv/libmythtv.pro
   branches/release-0-24-fixes/mythtv/libs/libmythtv/mythplayer.cpp
   branches/release-0-24-fixes/mythtv/libs/libmythtv/mythplayer.h
   branches/release-0-24-fixes/mythtv/libs/libmythtv/teletextdecoder.cpp
   branches/release-0-24-fixes/mythtv/libs/libmythtv/teletextdecoder.h
   branches/release-0-24-fixes/mythtv/libs/libmythtv/teletextscreen.cpp
   branches/release-0-24-fixes/mythtv/libs/libmythtv/teletextscreen.h