Most users of ffio_init_context() simply want to wrap
a buffer into an AVIOContext; they do not provide
function pointers at all.
Therefore this commit adds shortcuts for these two common
operations. This also allows to accept const data when reading
(i.e. the const is now cast away at a central place in
ffio_init_read_context() instead of at several callers).
This also allows to constify the data in ff_text_init_buf().
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
These defines are also used in other contexts than just AVCodecContext
ones, e.g. in libavformat. Furthermore, given that these defines are
public, the AV-prefix is the right one, so deprecate (and not just move)
the FF-macros.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
AVCodec is only ever used as an incomplete type (i.e. via a pointer
to an AVCodec) in avformat.h and it is not really part of the core
of avformat.h or libavformat; almost none of our internal users
make use of it (and none make use of hwcontext.h, which is implicitly
included). So switch to use struct AVCodec, but continue to include
codec.h for external users for compatibility.
Also, do the same for AVFrame and frame.h, which is implicitly included
by codec.h (via lavu/hwcontext.h).
Also, remove an unnecessary inclusion of <time.h>.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
and also perform the remainder of the subtitle parsing directly
after mkv_parse_subtitle_codec().
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Namely to a place after the AVStream has already been created,
so that it can be directly attached to it.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
More exactly, factor codec-specific video parsing out of
matroska_parse_tracks(). This is intended to improve readability.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
If the size of the data of an EbmlBin is > 0, its data is always
present, as ebml_read_binary() always leaves the buffer
in a consistent state (even on error).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
More exactly, factor codec-specific audio parsing out of
matroska_parse_tracks(). This is intended to improve readability.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Up until now, matroska_parse_tracks() has two main ways
to set AVCodecParameters.extradata: A generic way via CodecPrivate
(possibly with an offset) and by allocating a buffer manually;
the pointer to this buffer is stored in a stack pointer.
In particular, the latter method is problematic, as the buffer
needs to be freed manually in case of error (currently there
are no error conditions between the place where it is set
to AVCodecParameters.extradata).
Most of these buffers are very small (<= 22B), so replace
the pointer to an allocated buffer with a stack buffer
and set the extradata directly for the one place where
the buffer may not be small.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Once upon a time, 413abbe164
added versions of some put_no_rnd_pixels functions for use
in VP3 and Theora (with an explicit check so that they are
only used for VP3 and Theora). When this was moved to hpeldsp
(from dsputil) in 3ced55d51c,
the check was replaced by a check for the bitexact flag
(and a CONFIG_VP3_DECODER compile-time check), so that
these functions were now used for other codecs as well.
Later commit 1dfc3cf89d
split off the "VP3-specific bits into a separate file",
yet these bits were not really VP3-specific bits at all
any more. (The error was repeated in commit
0a39c9ac0bfd7345fe676b4e2707d9cec3cbb553.) This commit
has not been reverted, because this would make future
changes from Libav (from where it originated) harder,
yet Libav is no more, so this commit effectively reverts
1dfc3cf89d.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Makes the output of the native decoder consistent with external decoders like
libdav1d with fate-enhanced-flv-av1.
Reviewed-by: Zhao Zhili <quinkblack@foxmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This reverts commit eb88ccb92e.
AVCodecContext fields are the proper place for a decoder to export such values.
This change is in preparation for the following commits.
add option named rtmp_enhanced_codec,
it would support hvc1,av01,vp09 now,
the fourcc is using Array of strings.
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
Andreas Rheinhardt
Christophe Gisquet
Paul B Mahol
James Almer
Stefano Sabatini
Steven Liu
Steven Liu