doc/texipod: add rule to correctly interpret @ref{ANCHOR,XREF,SECTION_NAME,...}

This allows to name an internal reference in the POD/MAN output.
doc/ffmpeg: extend documentation for the -filter options and -af/vf aliases
lavf/utils: clarify/extend messages in avformat_find_stream_info()

In particular, specify the unit of the shown values in case the max probe
size/duration is reached.
lavf: clarify/extend documentation for AVFormatContext::analyzeduration

"analyzeduration" is not used to detect the input duration, but to
specify the max probe data duration. Fix option description and related
doc entry accordingly.
swr: move buffer used to discard sample to context

This avoids the need to allocate & free to repeatly

Fixes Ticket2122

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swr: move silence buffer to context to avoid per use malloc/free

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffplay: extend documentation for the -vf option

In particular, make it consistent with the ffmpeg docs.
swr: limit buffer size for discarding.

This prevents insane memory usage in case of insane input values.
Untested due to lack of a testcase that causes such insane allocation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swr: limit buffer size for silence injection

This reduces memory usage for unreasonable large silence injections

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swr: fix handling of timestamps that cause multiple drops or silence injections

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

Fixes Ticket45

Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
h264: fix () placement

Fixes null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swr/dither: fix division by 0

Found-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
h264: don t leave stale pointers in delayed_pic in flush_changes.

Fixes null pointer dereference & assertion failure

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
doc/examples: fix assignments in if()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
aacenc: Fix assignments in if()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libfaac: Fix assignments in if()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libfdk-aacenc: Fix assignments in if()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libmp3lame: Fix assignments in if()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libopencore-amr: Fix assignments in if()

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