Decoder and demuxer for various binary text formats.

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

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

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

Declaring tools associated with each library in their respective
makefiles allows these tools to easily depend on the correct
prerequisites and link against the libs they need.

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

Also include it into the doxygen documentation

The PTS for captured audio was measured using snd_pcm_htimestamp.

snd_pcm_htimestamp hangs when the input is a dsnoop plugin.

Furthermore, at some point, snd_pcm_htimestamp started returning monotonic
timestamps rather than wall clock timestamps, in most but not all
situations.
Monotonic timestamps are fine, but ffmpeg uses wall clock timestamps
everywhere else, and we have no API to inform the user which kind of
timestamps it is.

A separate snd_pcm_htimestamp is only slightly less accurate than
snd_pcm_htimestamp: the standard deviation for the difference between two
consecutive timestamps is (on my hardware):
- ~13 µs with snd_pcm_htimestamp;
- ~35 µs with av_gettime;
-  ~5 µs with av_gettime and a timefilter.

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

This reverts commit a6213f3dce.

Calling Make from subdirectories is not supported and config.mak has
multiple inclusion guards anyway, so the top-level include is enough.

This is enabled with an AVOption on the RTP muxer. The SDP
generator looks for a latm flag in the rtpflags field.

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

output-example.c (and renamed to muxing-example.c) has been moved to
doc/examples.

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

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

Move ff_read_chan_chunk() to isom.c and rename it as ff_mov_read_chan().

This can later be extended to support other AES bit sizes,
encryption, other crypto algorithms, reading the key from a URL, etc.

In order to use it, the key and initialization vector has to be
passed via AVOptions. Since such options can't be passed to
protocols from the command line, the protocol is currently
only for libavformat internal use.

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

This patch also introduces CODEC_ID_CELT.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>

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

Not yet complete, for demuxing AAC the AAC header must be generated
manually.
Possibly the decoder could accept the header as extradata to simplify
this.

Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>

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

The two functions are identical, no point in duplicating code here.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

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

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit f4f4e12c0d)

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

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: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 5306bf41a6)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 50196a982b)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit d08928bbea)

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

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

Originally committed as revision 26126 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26113 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26102 to svn://svn.ffmpeg.org/ffmpeg/trunk

Dumps all metadata to a text file for easy manual editing.

Originally committed as revision 26101 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26094 to svn://svn.ffmpeg.org/ffmpeg/trunk