This allows the iteration callbacks to discover the internal class and
options, and show them when required.

This is required for iterating through the filter class (without
incurring into a loop).

Otherwise, the value of stream_index is kept from the last packet
read, which is not necessarily the stream that needs flushing.

This reduces from 3 to 2 messages for the same syntax error in ffprobe,
and from 4 to 3 in filters.

This ensures that the output buffers will have the channel layout set,
which is required by filters.

Also consistent with ffmpeg.c behavior.

Since the recent changes, movie and amovie are able to deal with more
than one type of stream, so they should be categorized as "multimedia
sources" rather than audio/video sources.

The audio and video code paths were too different,
most of the decoding has been rewritten.

Signed-off-by: Steven Robertson <steven@strobe.cc>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

movie currently forwards EOF (or begins looping) immediately upon
reaching the last packet in the input stream, which can leave frames in
the decoder. This change first tries to read any remaining packets from
the decoder before forwarding EOF.

Signed-off-by: Steven Robertson <steven@strobe.cc>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

The macro can be used to define consistently the internal class of a
filter, save some typing and factorize.

While here:
    - add missing .version and .category,
    - make .class_name consistent across filters,
    - align declarations.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

They were discarded in 0f0f3bd1e0.

The function is modelled after av_default_item_name(), and will print the
name of the instance filter if defined, otherwise the name of the filter.

This allows to show the instance name in the log, which is useful when
debugging complex filter graphs.

The planar/packed switch and the packing_formats list is no longer
required, since the planar/packed information is now stored in the sample
format enum.

This is technically a major API break, possibly it should be not too
painful as we marked the audio filtering API as unstable.

avfilter.h is a public header and the unexported audio.h header contains
only internal prototypes.

Signed-off-by: William Yu <genwillyu@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

This fixes playback with some audio files through filters.

The crash occurrs when a frame is successfully decoded, but no decoded
data is immediately available (typically happens with ogg/vorbis).

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

GCC 4.6.2 at least still seems to fail to put them in .rodata though,
see also http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37303

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

The additional parameters were never used and are complicating the
function interface. Also, they were inconsistent with the way the
video API works.

So this assumes that a requested samples buffer will have *always* the
format specified in the requested link.

This breaks audio filtering API and ABI.

The file is going to contain the amovie source, so give it a less
specific name.

Allow factorization for the pending work on the audio movie source.

It supports passing options to codecs.

Adds support for decoder-private options and makes setting other options
simpler.

Deprecate the last remaining member of AVFormatParameters.

This breaks API and ABI.

avfilter_copy_frame_props() avoids code duplication and increases
robustness.

The added files libavfilter/avcodec.[ch] are used for containing
utilities useful for gluing togheter libavfilter and libavcodec.

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.

This breaks API and ABI.

Signed-off-by: Roger Pau Monné <roger.pau@entel.upc.edu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Also set movie->picref to NULL, in order to avoid a crash in uninit()
when movie->picref is unreffed again and it was already freed.

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Roger Pau Monné <roger.pau@entel.upc.edu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also set movie->picref to NULL, in order to avoid a crash in uninit()
when movie->picref is unreffed again and it was already freed.

Fix trac issue #66.

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

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>

See thread:
Subject: [PATCH] movie video source
Date: 2010-12-31 15:35:30 GMT

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

See thread:
Subject: [PATCH] movie video source
Date: 2010-12-31 15:35:30 GMT

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