Fixes Ticket3757
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

This obviates a dependency of the LJPEG encoder on mpegvideo.

Fixes vsynth3 fate failures on mips
Signed-off-by: NMichael 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: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NMichael 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: NReimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: NMichael 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: NLuca Barbato <lu_zero@gentoo.org>

Fixes Ticket3257
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

This avoids a hypothetical integer overflow with very high resolution video
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes Ticket3456
Signed-off-by: NMichael 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: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NLukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: NMichael 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: NMartin Storsjö <martin@martin.st>

We currently read a whole 16x16 block from the input at a few places
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

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

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

Several decoders disable those anyway and they are not measurably faster
on x86. They might be somewhat faster on other platforms due to missing
emu edge SIMD, but the gain is not large enough (and those decoders
relevant enough) to justify the added complexity.

This introduces some code duplication. However, much of it should go
away once the decoders stop using MpegEncContext.

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