Fixes "warning: dc[0..5] may be used uninitialized in this function"
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

It does not help as an abstraction and adds dsputil dependencies.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

Fixes Ticket2041
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Move some functions from dsputil. The idea is that videodsp contains
functions that are useful for a large and varied set of video decoders.
Currently, it contains emulated_edge_mc() and prefetch().
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Since we can't know which stride a custom get_buffer() implementation is
going to use we have to allocate this scratch buffers after the linesize
is known. It was pretty safe for 8 bit per pixel pixel formats since we
always allocated memory for up to 16 bits per pixel. It broke hoever
with cmdutis.c's alloc_buffer() and high pixel bit depth since it
allocated larger edges than mpegvideo expected.

Fixes fuzzed sample nasa-8s2.ts_s244342.

Fixes Ticket1990
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

RealPlayer does not play rv20 files when sizes are not multiple of 4
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

RealPlayer does not play correctly rv10 files when sizes are not multiple of 16

"RealVideo Encoder 1.0 supports any size image that is a multiple of sixteen pixels."
Reviewed-by: NNicolas George <nicolas.george@normalesup.org>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

This code never did anything as far as i can remember
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Signed-off-by: NPaul B Mahol <onemda@gmail.com>

Deprecate avcodec_get_chroma_sub_sample.

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

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

Fixes CID608053
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Fixes CID703622
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: NMartin Storsjö <martin@martin.st>

It now just checks uninitialized and unused data.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

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

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

This file defines a single, huge function, MPV_motion(), which
although being declared inline is not actually inlined by the
compiler (for good reason).  There is thus no sense in defining
this function in a header file, resulting in multiple copies of
it in the final library.
Signed-off-by: NMans Rullgard <mans@mansr.com>

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

it now just checks uninitialized and unused data.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>