avcodec/exif/exif_add_metadata: add support for SSHORT & SBYTE

No working testcase, this omission was just spoted when the parser apparently went out of
sync.

Reviewed-by; Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/exif: do not follow 0 offsets

Fixes exif decoding failure of 1295328_300.jpg

Reviewed-by; Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/huffman: use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/ratecontrol: use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/tiff: use av_malloc(z)_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcdoec/webp: use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
vc1dsp: introduce cases for 8x8 and 16x16

This allows further unrolling the DSP implementation where possible.

x86 and ARM DSP modified by simply moving the multiple calls from vc1dec
to the DSP code. Decoding improvements should only occurs because of the
compiler actually able to unroll more.

Decoding time: ~8.80s -> 8.64s (ie around 2%)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/arm/vc1dsp_init_neon: fix code so it compiles and passes fate-vc1

The original patch  seems to be missing a 16x16 function though

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
lavf/pcm: remove redundant check

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/x86/vp9lpf: merge a few movs with other instructions.
avcodec/x86/vp9lpf: add a comment above a bunch of SWAP.
avformat/pmpdec: remove cur_dts timestamp hack

It appears the demuxer works fine without it

Fixes Ticket3534

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/asfenc: dont allow non interleaved packets

The muxer does not support this currently

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat: Fix decoder search in find stream info

Fixes Ticket3548

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/filtfmts: Support dynamically allocated in/outputs

Fixes crash
Fixes Ticket3468

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