v210enc: Add SIMD optimised 8-bit and 10-bit encoders

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/signalstats: fix different buffers for out frame if burn is enabled

This was the original intend.
avfilter/signalstats: remove pointless sub filter init system
avfilter/signalstats: integrate height loop into subfilters
avfilter/signalstats: reindent after previous commit
avfilter/signalstats: fix repitition/repetition typo
avfilter/signalstats: add slice threading for subfilters
avfilter/signalstats: isolate sat hue computation metrics in a function

This will be useful for the following commit
avfilter/signalstats: add threading in compute_sat_hue_metrics
avfilter/signalstats: localize a few variables
avfilter/signalstats: re-use yuv/yuvu/yuvv vars in diff
ffserver_config: cosmetic: simplify functions calls.

ffserver_save_avoption() and ffserver_opt_preset() have
redundant arguments. They can be obtained basing on media type.
This simplifies uses and reduce chance for a mistake.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
ffserver_config: cosmetic: move line_num into FFServerConfig

Moving line_num into FFServerConfig as parser state,
saves many passes of it aside of FFServerConfig pointer.
ffserver_config: map ffserver options to AVOptions

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
ffserver_config: remove ffserver_apply_stream_config function

This function became very short and can be logically merged with add_codec().

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
ffserver: allow skip setting defaults

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
ffserver: export recommented encoder configuration

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
ffserver: dont leak child arguments

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
ffserver: dont leak pb_buffer
lavc/options: fix leaks in avcodec_free_context

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>