Right now, the caller has to manually manage some allocated
AVCodecContext fields, like extradata or subtitle_header. This is
fragile and prone to leaks, especially if we want to add more such
fields in the future.
The only reason for this behaviour is so that the AVStream codec context
can be reused for decoding. Such reuse is discouraged anyway, so this
commit is the first step to deprecating it.
These functions are using the POSIX clock_gettime() function with the
CLOCK_MONOTONIC clock id. If these are not present on the targeted
platform, the new functions will fallback on using the original realtime functions
av_gettime() and av_usleep().
Monotonic support can be added on other platforms with their
equivalent native system API eventually if possible.
Whenever time is requested to measure relative time, the monotonic clock,
when available, is superior to the system realtime clock because it is
not affected by discontinuous jumps in the system time
In a future step, offering the flexibility to let the user choose between
rt and monotonic clock for avdevices packets will be investigated.
It is very easy to experience the issues that this patch attempt to address
by rewinding back in the past the system time while ffmpeg is running.
this is breaking the ffmpeg report printing (ffmepg.c:print_report()) and
the the rate emulator functionality (-re) without the patch.
Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Describe the option added in commit f1c167496e
Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Use it instead of checking CODEC_FLAG_BITEXACT in the first stream's
codec context.
Using codec options inside lavf is fragile and can easily break when the
muxing codec context is not the encoding context.
* commit '66e6c8a7b4e3ac926302529606bd3e323c28b20f':
lavu: Add a pixel format for new VDA hwaccel
Conflicts:
doc/APIchanges
libavutil/pixfmt.h
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Existing av_opt_set_dict doesn't accept flags.
It doesn't allow to pass options to nested structs.
New function alllows that.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
* commit '6484149158b6fc6d13d2b2ef84cb26a2d3275400':
lavc: make the xvid-specific "gmc" flag a private option of libxvid
Conflicts:
libavcodec/libxvid.c
libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* cigaes/master:
lavfi/drawtext: allow to format pts as HH:MM:SS.mmm.
lavf/concatdec: implement automatic conversions.
lavf/concatdec: reindent after last commit.
lavf/concatdec: always do stream matching.
lavf/concatdec: check match_streams() return value.
lavf/concatdec: use a structure for each stream.
ffprobe: use the codec descriptor if no decoder was found.
lavf/matroska: add "binary" pseudo-MIME type.
lavc: minor bump and APIchanges for AVCodecDescriptor.mime_types.
lavc: add a mime_types field to codec descriptors.
lavc: add AV_CODEC_ID_BIN_DATA.
lavc: add codec descriptors for TTF and OTF.
lavc: add codec descriptors for deprecated ids.
lavc/codec_desc: add separation comment.
tools/ffhash: implement base64 output.
tools/ffhash: use av_hash_final_hex().
lavu/hash: add hash_final helpers.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5a70a783f04919514efec7751d710b64d8975fd7':
hls: Add an option to prepend a baseurl to the playlist entries
Conflicts:
doc/muxers.texi
libavformat/hlsenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5c08ae4f37281441188447cd04dcaf7cd7ce031f':
segment: Add an option to prepend a string to the list entries
Conflicts:
doc/muxers.texi
libavformat/segment.c
See: 5e278c19c7
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ed4b757177f9b563412cdbc8ee3405d82e10fc05':
dxva2_h264: add a workaround for old Intel GPUs
Conflicts:
doc/APIchanges
libavcodec/version.h
See: 8b2a130d3f
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Old Intel GPUs expect the reference frame index to the actual surface,
instead of the index into RefFrameList as specified by the spec.
This workaround should be set when using one of the "ClearVideo" decoder
devices.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This fixes usage of AV_TIME_BASE_Q in C++ applications, which
cannot use compound literals directly in their code.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This fixes usage of AV_TIME_BASE_Q in C++ applications, which
cannot use compound literals directly in their code.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Device is able to use existing window, that can be a
part of existing GUI - instead of newly created one.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
After this commit applications needs to call av_format_inject_global_side_data()
or handle AVStream side data by some other means if they want it not to be lost.
This fixes a API incompatibility with libav.
libav API does not allow the data to be passed through AVPackets
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This adds a new "replaygain_noclip" option to the filter, and, if enabled,
limits the gain applied for tracks where clipping would occur.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This aims to standardize the English used in the libavfilter
documentation, describing the same thing in the same way more often,
and significantly reduce the amount of outright errors, including
run-on sentences and sentence fragments.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Provides API to query device capabilities.
Each device must implement callbacks to benefit from this API.
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Ported asettb (including the sr option for audio sample rate) from FFmpeg,
and copied/modified the existing settb documentation for asettb.
Signed-off-by: Katerina Barone-Adesi <katerinab+libav@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The old implementation is unusable due to changes in the Xvid API.
Further fixes by Michael Niedermayer <michaelni@gmx.at>.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* commit '6f273093e54cba130f3ffde3d6433e74baa4ad89':
LucasArts SMUSH VIMA audio decoder
Conflicts:
Changelog
libavcodec/avcodec.h
libavcodec/codec_desc.c
libavcodec/version.h
libavcodec/vima.c
This commit adds a AV_CODEC_ID_ADPCM_VIMA alias in addition to the previously
used AV_CODEC_ID_VIMA, as well as a AVCodec with name "adpcm_vima" in addition
to the previously used name "vima"
These changes are needed for compatibility with the renamed codec in libav
See: b18357326c and others
Merged-by: Michael Niedermayer <michaelni@gmx.at>
