This defines an AVCodec only if the corresponding CONFIG option is
enabled instead of using the broad CONFIG_ENCODERS/DECODERS.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Since it is declared as a string AVOption, the generic freeing code
attempts to free it on codec close. Some codecs might have already freed
it elsewhere (or didn't even allocate it with av_malloc() in the first
place), so this might lead to an invalid free.
There is no point in having this field accessible as an AVOption, so
remove it from the options table.
Fixes Bug 380.
CC: libav-stable@libav.org
Error out on init if a codec with CODEC_CAP_EXPERIMENTAL is requested
and strict_std_compliance is not FF_COMPLIANCE_EXPERIMENTAL.
Move the check from avconv to avcodec_open2() and return
AVERROR_EXPERIMENTAL accordingly.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit introduces a new AVPacket side data type:
AV_PKT_DATA_STRINGS_METADATA. Its main goal is to provide a way to
transmit the metadata from the AVFilterBufferRef up to the AVFrame. This
is at the moment "only" useful for lavfi input from libavdevice:
lavd/lavfi only outputs packets, and the metadata from the buffer ref
kept in its context needs to be transmitted from the packet to the frame
by the decoders. The buffer ref can be destroyed at any time (along with
the metadata), and a duplication of the AVPacket needs to duplicate the
metadata as well, so the choice of using the side data to store them was
selected.
Making sure lavd/lavfi raises the metadata is useful to allow tools like
ffprobe to access the filters metadata (it is at the moment the only
way); ffprobe will now automatically show the AVFrame metadata in any
customizable output format for users. API users will also be able to
access the AVFrame->metadata pointer the same way ffprobe does
(av_frame_get_metadata).
All the changes are done in this single commit to avoid some memory
leaks: for instances, the changes in lavfi/avcodec.c are meant to
duplicate the metadata from the buffer ref into the AVFrame. Unless we
have an internal way of freeing the AVFrame->metadata automatically, it
will leak in most of the user apps. To fix this problem, we introduce
AVCodecContext->metadata and link avctx->metadata to the current
frame->metadata and free it at each decode frame call (and in the codec
closing callback for the last one). But doing this also means to update
the way the tiff decoder already handles the AVFrame->metadata (it's the
only one decoder with frame metadata at the moment), by making sure it
is not trying to free a pointer already freed by the lavc internals.
The lavfi/avcodec.c buffer ref code is based on an old Thomas Kühnel
work, the rest of the code belongs to the commit author.
Signed-off-by: Thomas Kühnel <kuehnelth@googlemail.com>
Signed-off-by: Clément Bœsch <ubitux@gmail.com>
* commit '2d09b36c0379fcda8f984bc8ad8816c8326fd7bd':
doc/platform: Add info on shared builds with MSVC
doc/platform: Move a caveat down to the notes section
ARM: reinstate optimised intmath.h
ffv1: update to ffv1 version 3
Conflicts:
doc/platform.texi
libavcodec/ffv1.c
libavcodec/ffv1.h
libavcodec/ffv1dec.c
libavcodec/ffv1enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is not based on lucas work due to code divergence (its less work this way
than trying to merge from a split based on 2 years outdated code)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'd15c21e5fa3961f10026da1a3080a3aa3cf4cec9':
avutil: Add a copy of ff_sqrt_tab back into avutil to restore ABI compatibility
avutil: make some tables visible again
avutil: remove inline av_log2 from public API
celp_math: rename ff_log2 to ff_log2_q15
Conflicts:
libavutil/libavutil.v
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Earlier versions of for instance of libavcodec expect this symbol to be
present in libavutil. This commit can be reverted after the next major
bump.
New shared builds of avcodec will link to the internal copy of the
table within that library, so those builds won't rely on this table
being present in avutil any longer either.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit 'c9ef43215c7d68c2cdcdbe02287aa114f27a32ed':
fate-vc1: add dependencies
ARM: fix overreads in neon h264 chroma mc
rtsp: Make sure the ret variable is initialized in ff_rtsp_fetch_packet
gitignore: ignore files created by msvc
fate: Add proper dependencies for the tests in video.mak
configure: Disable Snow decoder and encoder by default
lzo: Drop obsolete fast_memcpy reference
build: Drop OBJS declaration for non-existing PCM_DVD encoder
mpeg4videodec: Disable frame multithreading for GMC, its not implemented at all
Conflicts:
libavcodec/mpegvideo.c
libavformat/rtsp.c
tests/fate/microsoft.mak
tests/fate/video.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
