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14 Commits

Author SHA1 Message Date
Anton Khirnov
b11acd5732 hevc: remove HEVCContext usage from hevc_ps 
Factor out the parameter sets into a separate struct and use it instead.

This will allow us to reuse this code in the parser.
 2015-07-12 18:15:39 +02:00
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
Vittorio Giovara
9e9be5a20c hevc_mvs: prevent unitialized use 
CC: libav-stable@libav.org
Bug-Id: CID 1244202
 2014-11-11 11:49:47 +01:00
Anton Khirnov
d208d1eba3 hevc_mvs: make sure to always initialize the temporal MV fully 
The spec requires this.

Fixes uninitialized reads on some samples.

Remove now unnecessary initialization of the whole merge candidate list.
 2014-10-07 07:13:01 +00:00
Anton Khirnov
79a60c8e77 hevc_mvs: initialize the temporal MV in case of missing ref 
The caller expects the MV to always be initialized.
 2014-10-07 07:12:55 +00:00
Luca Barbato
e3a00acde0 hevc: Initialize mergecand_list to 0 
Unbreak cf6090dc62.

CC: libav-stable@libav.org
Sample-Id: hevc-conformance-LTRPSPS_A_Qualcomm_1
 2014-09-29 12:33:46 +01:00
Christophe Gisquet
3187fa14a3 hevc_mvs: avoid deriving tmvp in amvp 
Reduces the number of calls to tmvp derivation from 933685 to 586271 on
a sequence.

Reviewed-by: Mickaël Raulet <mraulet@insa-rennes.fr>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 10:13:43 +00:00
Christophe Gisquet
14ca0aa69b hevc: wait proper position for tmvp 
The position is either rounded or not checked, so delay the wait to
check the proper value.

Reviewed-by: Mickaël Raulet <mraulet@insa-rennes.fr>

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 10:13:21 +00:00
Christophe Gisquet
cf6090dc62 hevc: use intreadwrite 
When dealing with MVs, both components may be processed at a time.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 10:03:20 +00:00
Christophe Gisquet
ed53cc217f hevc: derive partial merge list 
The merge list only needs to be derived up to the merge index.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 09:59:30 +00:00
Christophe Gisquet
3505b19652 hevc: derive partially amvp list 
When the candidate has been found, no need to derive others.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 09:58:14 +00:00
Christophe Gisquet
09182b3224 hevc: simplify rounding 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 09:57:25 +00:00
Luca Barbato
246d3bf0ec hevc: Conceal zero td 
It was done only in check_mvset(), while mv_scale() is called also by
dist_scale().

Sample-Id: 00001579-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-02-09 19:53:43 +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