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12 Commits

Author SHA1 Message Date
Peter Meerwald
eea769df32 hevc: Use generic av_clip function, not C implementation 
hevc seems to be the only place where the C implementation
of the av_clip function is explicitly selected, precluding
platform-specific optimizations

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-02-13 08:37:13 +01:00
Anton Khirnov
7acdd3a127 hevc_filter: avoid excessive calls to ff_hevc_get_ref_list() 
1) each of the loops run within a single CTB, so the relevant reference
list is constant
2) when that CTB is, or lies on the same slice as, the current one, we
can use a simple access instead of a relatively expensive call to
ff_hevc_get_ref_list()
 2014-08-09 16:15:51 +00:00
Anton Khirnov
a7a17e3f19 hevc_filter: move some conditions out of loops 2014-08-09 16:15:11 +00:00
Anton Khirnov
70211539a3 hevc: deobfuscate slice/tile boundary handling for DBF 
Use named constants instead of magic numbers, avoid using variables with
inverse meaning from what their name implies.
 2014-08-09 16:13:48 +00:00
Anton Khirnov
5501971578 hevc_filter: drop more redundant checks 
The if() around those loops ensures this condition is always false.
 2014-08-09 16:13:37 +00:00
Anton Khirnov
65b8b6c476 hevc_filter: drop redundant checks 
ff_hevc_deblocking_boundary_strengths() is never called if the
deblocking filter is disabled for the slice.
 2014-08-09 16:13:24 +00:00
Anton Khirnov
73bb8f61d4 hevcdsp: remove an unneeded variable in the loop filter 
beta0 and beta1 will always be the same
 2014-07-26 15:00:11 +00:00
Luca Barbato
ff486c0f7f hevc: Do not right shift a negative value in get_pcm 2014-02-23 14:34:40 +01:00
Luca Barbato
50c988aa6d hevc: Drop unnecessary shifts in deblocking_filter_CTB 
beta_offset is pre-multiplied by 2.
 2014-02-23 14:34:34 +01:00
Luca Barbato
09e2203b8b hevc: Consider first quantization group any reference to 0, 0 
According to my understanding of T-REC-H.265-2013044 chapter 8.6.1.

Sample-Id: 00001438-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-02-01 17:02:35 +01:00
Michael Niedermayer
d5c15ebeaf hevc: Fix modulo operations 
Keep qp fields within the range.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-01-21 11:57:43 +01:00
Guillaume Martres
064698d381 Add HEVC decoder 
Initially written by Guillaume Martres <smarter@ubuntu.com> as a GSoC
project. Further contributions by the OpenHEVC project and other
developers, namely:

Mickaël Raulet <mraulet@insa-rennes.fr>
Seppo Tomperi <seppo.tomperi@vtt.fi>
Gildas Cocherel <gildas.cocherel@laposte.net>
Khaled Jerbi <khaled_jerbi@yahoo.fr>
Wassim Hamidouche <wassim.hamidouche@insa-rennes.fr>
Vittorio Giovara <vittorio.giovara@gmail.com>
Jan Ekström <jeebjp@gmail.com>
Anton Khirnov <anton@khirnov.net>
Martin Storsjö <martin@martin.st>
Luca Barbato <lu_zero@gentoo.org>
Yusuke Nakamura <muken.the.vfrmaniac@gmail.com>
Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diego Biurrun <diego@biurrun.de>

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2013-10-31 20:19:59 +01:00