av_freep(swsContext) will leak all memory potentially
allocated within the swsContext.

Fix warnings:
cmdutils.c: In function ‘opt_default’:
cmdutils.c:304: warning: initialization discards qualifiers from pointer target type
cmdutils.c: In function ‘set_context_opts’:
cmdutils.c:431: warning: passing argument 2 of ‘alloc_priv_context’ discards qualifiers from pointer target type
cmdutils.c:414: note: expected ‘struct AVClass *’ but argument is of type ‘const struct AVClass *’

Avoid the presence of an invalid pointer, fix a crash in case of
get_filtered_frame() failure.

This fixes and simplifies setting decoder private options.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffplay: add a dummy option -i so that it is easy to switch between ffmpeg -i "file" and ffplay -i "file".
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Check that the value passed for an OPT_INT option is an int, fail
otherwise.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The function was only used in opt_sample_fmt() for listing the sample
formats. Move list_fmts() functionality directly into
opt_sample_fmt().

Also fix the warning:
ffmpeg.c: In function ‘opt_audio_sample_fmt’:
ffmpeg.c:2877: warning: passing argument 1 of ‘list_fmts’ from incompatible pointer type
cmdutils.h:163: note: expected ‘void (*)(char *, int,  int)’ but argument is of type ‘char * (*)(char *, int,  enum AVSampleFormat)’
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This is consistent with how all the other options work.

Improve consistency with libavcodec.

This breaks libavfilter API/ABI.

The non-sequential 2.1.0 -> 2.4.0 bump is due to the mess previously
done with the lavfi minor number.

The sample aspect ratio is a per-frame property, so it makes sense to
define it in AVFrame rather than in the codec/stream context.
Simplify application-level sample aspect ratio information extraction,
and allow further simplifications.

This is similar to what was done with pkt_pts. This simplifies the
operation of extracting the pos information from the AVPacket, and
allows further simplifications.

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

Signed-off-by: Anton Khirnov <anton@khirnov.net>

CommandLineToArgvW requires windows.h, include it directly

All file names should be in UTF-8 within libavformat.

This is handled by mapping the open() function to an internal one
in os_support.h for windows.

fopen() could be overridden in the same way, but if that would be
used from ffmpeg.c, it would add a dependency on an ff prefixed
internal lavf function.
Signed-off-by: Martin Storsjö <martin@martin.st>

to override global options.

Check that the value passed for an OPT_INT option is an int, fail
otherwise.

The function was only used in opt_sample_fmt() for listing the sample
formats. Move list_fmts() functionality directly into
opt_sample_fmt().

Als fix the warning:
ffmpeg.c: In function ‘opt_audio_sample_fmt’:
ffmpeg.c:2877: warning: passing argument 1 of ‘list_fmts’ from incompatible pointer type
cmdutils.h:163: note: expected ‘void (*)(char *, int,  int)’ but argument is of type ‘char * (*)(char *, int,  enum AVSampleFormat)’

Signed-off-by: Mans Rullgard <mans@mansr.com>

This reverts commit 29ba0911.

This reverts commit a03be6e1.

also update the multiple inclusion guards in config.h|mak

Add a dummy option -i to ffplay so that it is easy to switch between ffmpeg -i "file" and ffplay -i "file".
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The new av_parse_time() is created in libavutil/parseutils.h, all the
internal functions used by parse_date are moved to
libavutil/parseutils.c and made static.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit f6c7375a)

The new av_parse_time() is created in libavutil/parseutils.h, all the
internal functions used by parse_date are moved to
libavutil/parseutils.c and made static.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Done to keep ABI compatible. Otherwise this is just silly

It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.
Signed-off-by: Reinhard Tartler <siretart@tauware.de>

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Using a preset file caused the address of a stack variable to be stored
in opt_names/values. This change causes the strings to be dup'd then
freed in uninit_opts.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 60ff9de6)

Add free to uninit_opts and relocate opt_names to same
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 3a6a9cdf)

Using a preset file caused the address of a stack variable to be stored
in opt_names/values. This change causes the strings to be dup'd then
freed in uninit_opts.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Add free to uninit_opts and relocate opt_names to same
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 3568853f)