First example and test of private codec parameters.

Originally committed as revision 25258 to svn://svn.ffmpeg.org/ffmpeg/trunk

Move allocation and init to defaults of the private codec contexts to avcodec_get_context_defaults3().
That way the user app can set codec specific parameters in the private context
before opening it.

Originally committed as revision 25257 to svn://svn.ffmpeg.org/ffmpeg/trunk

from memory locations/offsets depending on b_idx plus constants, rather than
having gcc do this. This saves several lea calls and together saves about
10 cycles in h264_loop_filter_strength_mmx2().

Originally committed as revision 25256 to svn://svn.ffmpeg.org/ffmpeg/trunk

a pxor, or remove the instruction alltogether. Altogether, this saves 1
instruction.

Originally committed as revision 25255 to svn://svn.ffmpeg.org/ffmpeg/trunk

This has no measurable speed effect because the surrounding code doesn't
take advantage of this yet.

Originally committed as revision 25254 to svn://svn.ffmpeg.org/ffmpeg/trunk

of the d_idx variable and therefore allows for future optimizations. No speed
difference by this commit itself.

Originally committed as revision 25253 to svn://svn.ffmpeg.org/ffmpeg/trunk

inlining various constants within the loop code. 20 cycles faster on
cathedral sample.

Originally committed as revision 25252 to svn://svn.ffmpeg.org/ffmpeg/trunk

readibility.

Originally committed as revision 32404 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

SWScale context.

Originally committed as revision 32403 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

yadif.c:226: error: can't find a register in class 'GENERAL_REGS' while reloading 'asm'
yadif.c:220: error: 'asm' operand has impossible constraints

Patch by Alexander Strange <astrange ithinksw com>.

Originally committed as revision 25251 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25250 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 32402 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

sws_init_context() instead.

Originally committed as revision 32401 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 32400 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 25249 to svn://svn.ffmpeg.org/ffmpeg/trunk

sws_init_context() of r32368.

Originally committed as revision 32396 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

invalid values.

Originally committed as revision 25248 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25247 to svn://svn.ffmpeg.org/ffmpeg/trunk

conventions, for consistency with the rest of the documentation.

Originally committed as revision 25246 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25245 to svn://svn.ffmpeg.org/ffmpeg/trunk

Pedagogically useful.

Originally committed as revision 25244 to svn://svn.ffmpeg.org/ffmpeg/trunk

r25218 made assumptions about the existence of past reference frames that
weren't necessarily true.

Originally committed as revision 25243 to svn://svn.ffmpeg.org/ffmpeg/trunk

Because DTS values aren't passed through decoders, they tend to be
inaccurate if decoder delay doesn't match what was expected by the encoder.

In particular this improves timestamps for H.264 without num_reorder_frames
set and with -strict 1, which causes DTS to be up to 16 frames ahead of the
picture.

Note that this doesn't really improve any file with very broken PTS/DTS,
since PTS isn't much more accurate in these.

Originally committed as revision 25242 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25241 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25240 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 32395 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 32394 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

It was being set wrong for files with data_offset > 0

Patch by Michael Chinen, mchinen gmail

Originally committed as revision 25239 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25238 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25237 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25236 to svn://svn.ffmpeg.org/ffmpeg/trunk

parameters.

Originally committed as revision 25235 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25234 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25233 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25232 to svn://svn.ffmpeg.org/ffmpeg/trunk

following width/height = par/dar.

Originally committed as revision 25231 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 32393 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 32392 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Options are not yet set for video encoders and for codec specific
defaults it is desireable to set the codec options only after the codec
is known.

Originally committed as revision 25230 to svn://svn.ffmpeg.org/ffmpeg/trunk

called avfilter_link() fails.

Originally committed as revision 25229 to svn://svn.ffmpeg.org/ffmpeg/trunk