Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4531e2c489)

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

Signed-off-by: Diego Biurrun <diego@biurrun.de>

One step in untangling the mpegvideo code and fixing some problems in
the order that initialization is being done in h263dec and h261dec.

Also rename the enum values to be consistent with other DCT permutations.

Fixes segfault
the size can probably be reduced further for the mpeg2 case

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

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

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

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

Fixes Ticket3757

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

This obviates a dependency of the LJPEG encoder on mpegvideo.

Fixes vsynth3 fate failures on mips

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

This will come in handy during dsputil splitting.

This fixes a race condition and use of the wrong field, which become shared
instead of per thread during some AVFrame changes.

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

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

Rework the comparison into something simpler to understand.

It is obviously nonsense since it produces wrong results
or even crashes (crashes should be encode-only though).
Fixes trac issue #1092.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The addition of reference-counted frames makes it pointless.

The Windows runtime aborts if it finds %t or %z.
Fixes ticket #3472.

Reviewed-by: Ronald Bultje

The picture slot can be recycled by select_input_picture and
only current_picture is populated with the valid pts.

Unbreak timestamps when in cbr mode.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes Ticket3257

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

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

The most interesting parts are initialization in ff_MPV_common_init() and
uninitialization in ff_MPV_common_end().

ff_mpeg_unref_picture and ff_thread_release_buffer have additional NULL
checks for Picture.f, because these functions can be called on
uninitialized or partially initialized Pictures.

NULL pointer checks are added to ff_thread_release_buffer() stub function.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

This avoids a hypothetical integer overflow with very high resolution video

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

Fixes Ticket3456

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

Also switch from "tbl" to "tab" name suffixes.

The function is supposed to confirm that the compiler provided enough
alignment, but in practice it is only run in certain code paths and
insufficient alignment problems are restricted to legacy compilers.

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

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Added libavutil/timer.h include to all files with {START,STOP}_TIMER.

This fixes builds with e.g. --disable-decoders --disable-encoders
--enable-encoder=mjpeg.

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

We currently read a whole 16x16 block from the input at a few places

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

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

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