It replaces the "fake" demuxer and decoder, and partially
the mjpeg one.
It does not rely on the extensions to detect the format.
The detected picture formats are: XCF, GIF, PNG, TIFF, BMP, PCX,
LBM, PNM, JFIF and SPIFF(Jpeg).
The reload feature of the fake:// demuxer is lost, as well as the deinterlace
feature of the fake decoder, patches are welcome.

It closes #3107 and #3388, and modifies #2295.

That fixes the y4m with unknown chroma that avformat can read

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This may be too big font for some, but static 7 point isn't that good either.

Manual forwardport of [1c26d070]

legacy OS X intf: fixed a rare case in which the vout window could loose its window decoration on recreation after a performed close

Manual forward-port of [fcbdd496]

Close #3485

Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

Use only pkg-config.
Fix sdl_image detection

But you need careful, if you compile without X and then run with an X-enabled PulseAudio, boom.

Closes: #3650

 It fixes 'on top' behaviour when going fullscreen (at least for linux), and
it avoid having a 'Untitled Window' in the taskbar when fullscreen.

It properly fixes #3526.

The maximum number of surfaces it will allow is now 128, but the actual value
used is configured by the core (around 20-30 when DR is used, a few otherwise).

All the operations are done from the command thread now

This should help watching mp4-videos (&fmt=18 and 22 or something like that)
from youtube. ffmpeg for fallback for windows. Not idea about OS X side.

contribs: added Google's libvpx patch for ffmpeg with a couple of compilation fixes for Mac OS X and added another patch for libvpx

Please note that updating pre1 to pre3 won't work because of this missing key *cough*

Mac OS X: added various missing file extensions to the supported-by-this-application-list (xa, m3u8, b4s, vlc, xm, amr, aob, dts, cdg, idx, oma, voc, vqf, mpeg1, mpeg2, mpeg4, mts, mid, mlp, webm, rar, rec, rmi, s3m, vro, tod, utf)