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

The switch is not yet complete because the parsers and the bistream
filters do not have a new AVCodecParam-based API yet.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

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

This reverts commit 7bb1c1bfd2.
A long existing version in the form of avconv -h decoder=h264 already
existed, and this just duplicates it.

Add an allowed parameter to -h and --help avconv option to print private
options from a codec, format, or filter, named with the provided input
value.

In case multiple classes are found (eg. mov demuxer and mov muxer, or
h264 decoder and h264 demuxer) print all options from all classes.
It is possible to select the type of class to print by adding it
before the name (eg. demuxer:mov and muxer:mov, or decoder:h264and
demuxer:h264).

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Convert doxygen to multiline and express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

The current code is less than straightforward due to the fact that
output streams can be created based on filtergraph definitions. This
change should make the code simpler and more readable. It will also be
useful in the future commits.

Since global options are processed before all the other options now, we
do not have to try creating the complex filtergraphs several times
anymore, it is enough to do it once after the input files are opened.

It is a better place for it, there is no reason to wait until
transcode_init().

Also, drop the now unused cmdutils_read_file(). There is no reason to
have two functions doing essentially the same thing.

It more logically belongs there.

This will be useful in the following commits.

Reported-By: infer

The option is enabled by default, but can be disabled.

If this is enabled, such side data isn't copied into the output stream
(except when doing stream copy).

Signed-off-by: Martin Storsjö <martin@martin.st>

CC: libav-stable@libav.org
Bug-Id: CID 1265719

Introduced in aed7900704

Bug-Id: debian/773055
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

CC: libav-stable@libav.org

The mpegenc private option values are in 50-byte units.

CC: libav-stable@libav.org

Signed-off-by: Diego Biurrun <diego@biurrun.de>

This avoids a segfault in avconv_opt.c:opt_target when trying to
determine the norm.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This makes it more clear what is this variable for exactly.

This makes it more clear what is this variable for exactly.

Move the dxva check after the dependencies have been detected, make sure
the ole32 library exists.

Fixes build on non-Windows.

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

avio_open2() only return < 0 when error.

Fixes an assertion failure in vdpau_get_buffer() when -hwaccel auto is
used, but hwaccel init fails.

Quite useful for debugging.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

It limits the duration of the data read from a given input.

Insert (a)trim filters on the corresponding inputs, so the extra frames
are decoded and discarded.

Using -ss 0 to drop frames with negative timestamps is a perfectly valid
use case.

Signed-off-by: Martin Storsjö <martin@martin.st>

This seems to have been missed in 636ced8e1d.

Signed-off-by: Martin Storsjö <martin@martin.st>

It is incompatible with refcounted frames and since it's been deprecated
for a long time now, fixing it is not worth the effort.

Hack partially based on a commit by Michael Niedermayer <michaelni@gmx.at>
Should fix (or work around) bug 458.

This way OutputFile variables like recording time can be used when
creating the streams.

We do not support using filters without AVFilterGraph in practice
anyway, so there is no point in pretending we do.