The AC3DecodeContext has a float (USE_FIXED=0) and an integer
(USE_FIXED=1) variant, both of which can be present in the same binary.
This is not only very confusing, but it also breaks horribly, when one
variant is used by code expecting the other.
This currently happens, because eac3dec.c is only compiled for the float
variant, but also used from ac3dec_fixed.c, which uses the integer
variant.
The result is memory corruption, leading to crashes.
So compile eac3dec.c once for each variant and adapt it, so that it
works with the integer variant.
A loss of precission and scaling bug has been fixed by the committer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes the following link error:
nutdec.c:(.text+0x2d47): undefined reference to `ff_codec_movvideo_tags'
isom.c:(.text+0x332): undefined reference to `avpriv_mpeg4audio_get_config'
isom.c:(.text+0x39e): undefined reference to `avpriv_mpa_freq_tab'
This fixes builds with vc1_parser enabled without vc1_decoder. All
the vc1_decoder object files were included in the vc1_parser line
in libavcodec/Makefile before, but architecture specific object files
for vc1_decoder were not.
Signed-off-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Anshul Maheshwari <anshul.ffmpeg@gmail.com>
To test Closed caption use following command
ffmpeg -f lavfi -i "movie=input.ts[out0+subcc]" -map s output.srt
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Compared to existing, common opensource H264 encoders, this can be
useful since it has got a different license (BSD instead of GPL).
Performance- and qualitywise it is comparable to x264 in ultrafast
mode.
Hooking it up as an encoder in libavcodec also simplifies comparing
it against other common encoders.
This requires OpenH264 1.3 or newer. Since the OpenH264 API and ABI
changes frequently, only releases are supported.
To take advantage of the OpenH264 patent offer, the OpenH264 library
must not be redistributed, but downloaded at runtime at the end-user's
system.
Signed-off-by: Martin Storsjö <martin@martin.st>
This test doesn't cover every possible issue with this function.
It covers options management only.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
vorbis_parser.o is built unconditionally since 5e80fb7ff, and the
unconditionally built parts of it depend on xiph.o.
This fixes builds with --disable-everything.
Signed-off-by: Martin Storsjö <martin@martin.st>
The only parameters needed by the demuxers are the sample rate and sample
count, which can be trivially extracted manually, without resorting to
an avpriv function.
This makes the addition of arch optimized functions easier.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This makes the addition of arch optimized functions easier.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
For sbr_qmf_window_us there is even a question if it maybe
should be fully hardcoded all the time.
Since half of it is coded, it ends up in .data and not .bss.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Thanks to Pascal Massimino and Michael Militzer for permission to use under LGPL
The xvid idct code is from xvid, and nearly unchanged to make future syncing easy
the integration into ffmpeg is done by the commiter
the commit message is written by the commiter
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Initialise VC1DSPContext for parser as well as for decoder.
Note, the VC-1 code doesn't actually use the function pointer yet.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This provides a public sustainable API/ABI for DCT functions.
Only externally used dct functions are included.
The structure is extensible without ABI issues compared to the
existing dct contexts.
See Mailing list and IRC log of 2014-07-26/27
Reviewed-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Hendrik Leppkes
Niels Möller
Andreas Cadhalpun
Vittorio Giovara
Anton Khirnov
Clément Bœsch
Diego Biurrun
Oleksij Rempel
Peter Meerwald
Michael Niedermayer
Martin Storsjö
Anshul Maheshwari
Reimar Döffinger
Paul B Mahol
Timo Rothenpieler
Lukasz Marek
Benoit Fouet
Eejya Singh
Luca Barbato
James Almer
Yusuke Nakamura
Pascal Massimino
Ben Avison
Carl Eugen Hoyos