Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Move the lavc/imgconvert functions and rename them as follows:
avpicture_get_size -> av_image_get_buffer_size()
avpicture_fill     -> av_image_fill_arrays()
avpicture_layout   -> av_image_copy_to_buffer()

The new functions have an align parameter, which allows to define the
linesize alignment assumed in the buffer (which is set or read).

The names of the functions are consistent with the lavu/samples API
(av_samples_get_buffer_size(), av_samples_fill_arrays()).

This allows simd optimized routines to work in steps of 8 pixels
without going over the linesize. (this matters for yuv->rgb24 for example)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also remove one pointless zero initialization in rangecoder.c.

This makes it possible to dintinguish them from PAL8.

Fixes an invalid write in avpicture_layout().

Found with address sanitizer.
Signed-off-by: Alex Converse <alex.converse@gmail.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Allow to factorize code between av_image_get_linesize() and
av_image_fill_linesizes(), and add missing checks.

Increase robustness.

Make it a subcase of the general algorithm used for the non-bitstream
case. Simplify, and make av_image_get_linesize() and
av_image_fill_linesizes() correctly return the right value when plane
!= 0.

In particular fix a crash occurring with:
-vf format=monow,showinfo,format=monow.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Done to keep ABI compatible. Otherwise this is just silly

It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.
Signed-off-by: Reinhard Tartler <siretart@tauware.de>

avfilter_default_get_video_buffer().

Originally committed as revision 25878 to svn://svn.ffmpeg.org/ffmpeg/trunk

av_image_fill_linesizes().

Originally committed as revision 25861 to svn://svn.ffmpeg.org/ffmpeg/trunk

rename it ff_set_systematic_pal2().

Originally committed as revision 25712 to svn://svn.ffmpeg.org/ffmpeg/trunk

av_image_fill_linesizes/pointers.

Originally committed as revision 25072 to svn://svn.ffmpeg.org/ffmpeg/trunk

av_image_copy(), more consistent with the rest of the API and more
semantically correct.

Originally committed as revision 25070 to svn://svn.ffmpeg.org/ffmpeg/trunk

av_image_copy().

Originally committed as revision 25067 to svn://svn.ffmpeg.org/ffmpeg/trunk

and deprecate the old function.

Originally committed as revision 25064 to svn://svn.ffmpeg.org/ffmpeg/trunk

grepping and somewhat more consistent with the scheme adopted by other
FFmpeg modules API.

Originally committed as revision 25057 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25053 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24859 to svn://svn.ffmpeg.org/ffmpeg/trunk

The plural form is preferred as it is more consistent with the other functions:
av_fill_image_linesizes()
av_fill_image_pointers()

and looks semantically more correct as it fills an array of elements.

Originally committed as revision 24851 to svn://svn.ffmpeg.org/ffmpeg/trunk

factorizing code.

Originally committed as revision 24827 to svn://svn.ffmpeg.org/ffmpeg/trunk

ff_get_plane_bytewidth().

The new implementation is more generic, more compact and more correct.

Originally committed as revision 24786 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24710 to svn://svn.ffmpeg.org/ffmpeg/trunk

av_check_image_size() declared in libavcore/imgutils.h.

Originally committed as revision 24709 to svn://svn.ffmpeg.org/ffmpeg/trunk

linesizes, for consistency with the function declaration.

Originally committed as revision 24591 to svn://svn.ffmpeg.org/ffmpeg/trunk

the pixdescs.

The new implementation is more compact, and does not need to be
updated at each pixel format addition.

Originally committed as revision 24590 to svn://svn.ffmpeg.org/ffmpeg/trunk

than -1.

Originally committed as revision 24589 to svn://svn.ffmpeg.org/ffmpeg/trunk

max_plane_step_comp by removing the "plane_" word, and add a comment
for explaining what they represent.

Increase readability.

Originally committed as revision 24588 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/imgconvert.c and make them public in libavcore/imgutils.h,
with the names av_fill_image_linesizes() and av_fill_image_pointers().

Originally committed as revision 24583 to svn://svn.ffmpeg.org/ffmpeg/trunk