Here the packet size is known before allocating the packet because
the encoder provides said information (and works with internal buffers
itself), so one can use this information to avoid the implicit use of
another intermediate buffer for the packet data; and by switching to
ff_get_encode_buffer() one can also allow user-supplied buffers.
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
AVCodecContext.extradata is freed generically by libavcodec for
encoders, so it is unnecessary for an encoder to do it on its own.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Said table was unused in case libvorbis was disabled.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Explicitly identify decoder/encoder wrappers with a common name. This
saves API users from guessing by the name suffix. For example, they
don't have to guess that "h264_qsv" is the h264 QSV implementation, and
instead they can just check the AVCodec .codec and .wrapper_name fields.
Explicitly mark AVCodec entries that are hardware decoders or most
likely hardware decoders with new AV_CODEC_CAPs. The purpose is allowing
API users listing hardware decoders in a more generic way. The proposed
AVCodecHWConfig does not provide this information fully, because it's
concerned with decoder configuration, not information about the fact
whether the hardware is used or not.
AV_CODEC_CAP_HYBRID exists specifically for QSV, which can have software
implementations in case the hardware is not capable.
Based on a patch by Philip Langdale <philipl@overt.org>.
Merges Libav commit 47687a2f8a.
This parameter can be used to inform the allocation code about how much
downsizing might occur, and can be used to optimize how to allocate the
packet
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
The libvorbis encoder already supports a small last frame, but the layer
above doesn't know that because we didn't register the small last frame
capability.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
this prevents the creation of a packet even though no single sample has ever
been input, which some confusion in the timestamp generation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The aix header math.h defines "extern int class()" for C.
This fixes compilation on aix with external libraries enabled.
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
Its useful to support the official decoder for comparission and debugging.
This reverts commit f9def9ccc6.
Conflicts:
Changelog
configure
libavcodec/allcodecs.c
libavcodec/libvorbis.c
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The warning is printed with loglevel error because the output
stream is known to be broken.
Also warn if no channel layout was provided for multichannel input.
None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit d36beb3f69)
Andreas Rheinhardt
Andreas Rheinhardt
wm4
Michael Niedermayer
Peter Hall
Michael Niedermayer
Lukasz Marek
Sean McGovern
James Zern
Paul B Mahol
Justin Ruggles
Nicolas George
Diego Biurrun
Anton Khirnov
Robert Swain
Carl Eugen Hoyos
Mans Rullgard
Diego Elio Pettenò