DVB subtitle decoder by (Ian Caulfield: imc25, cam ac uk)

Originally committed as revision 4449 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4448 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4446 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4442 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4441 to svn://svn.ffmpeg.org/ffmpeg/trunk

skip_frame
skip_loop_filter

Originally committed as revision 4440 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4439 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4438 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4436 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4435 to svn://svn.ffmpeg.org/ffmpeg/trunk

fixes bug #1160195

Originally committed as revision 4434 to svn://svn.ffmpeg.org/ffmpeg/trunk

fix segfault if the first P frames header is damaged

Originally committed as revision 4432 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4430 to svn://svn.ffmpeg.org/ffmpeg/trunk

(math.h needed for log2() at least)

Originally committed as revision 4426 to svn://svn.ffmpeg.org/ffmpeg/trunk

Main reason is: deltas in interframes need scaling by 3/4 before applying.
Detailed description is at:
http://sourceforge.net/tracker/index.php?func=detail&aid=1222099&group_id=16082&atid=116082
He also mentioned some samples at:
http://www.nerdgrounds.com/indeo21_test/
patch posted to ffmpeg-devel by (Kostya: kostya shishkov, gmail com)

Originally committed as revision 4425 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 4416 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4414 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4413 to svn://svn.ffmpeg.org/ffmpeg/trunk

avoid adding duplicate global headers to the bitstream

Originally committed as revision 4410 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4409 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 4403 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 4401 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4399 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4397 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4395 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4394 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4388 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4385 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4384 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Peter Robinson pbrobinson @ at @ gmail . dot . com and myself

Originally committed as revision 4382 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4381 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4368 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4360 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4357 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4356 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4355 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4353 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4346 to svn://svn.ffmpeg.org/ffmpeg/trunk

deblocking is still incorrect with 8x8+cavlc

Originally committed as revision 4339 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4338 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4337 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 4336 to svn://svn.ffmpeg.org/ffmpeg/trunk

(I think that's it, and this fixes it)

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Originally committed as revision 4332 to svn://svn.ffmpeg.org/ffmpeg/trunk