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17 Commits

Author SHA1 Message Date
Diego Biurrun
ba479f3daa hevc: Change type of array stride parameters to ptrdiff_t 
ptrdiff_t is the correct type for array strides and similar.
 2016-09-29 17:54:23 +02:00
Mickaël Raulet
cc16da75c2 hevc: Add coefficient limiting to speed up IDCT 
Integrated to libav by Josh de Kock <josh@itanimul.li>.

Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
 2016-07-18 15:27:13 +02:00
Mickaël Raulet
a92fd8a062 hevc: Add DC IDCT 
Integrated to Libav by Josh de Kock <josh@itanimul.li>.

Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
 2016-07-18 15:27:13 +02:00
Mickaël Raulet
4f247de3b7 hevcdsp_template: Templatize IDCT 
Integrated to Libav by Josh de Kock <josh@itanimul.li>.

Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
 2016-07-18 15:27:13 +02:00
Alexandra Hájková
1bd890ad17 hevc: Separate adding residual to prediction from IDCT 
Based on patch 250430bf28
by Mickaël Raulet <mraulet@insa-rennes.fr>, integrated
to Libav by Josh de Kock <josh@itanimul.li>.

Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
 2016-07-18 15:27:13 +02:00
Anton Khirnov
e7078e842d hevcdsp: add x86 SIMD for MC 2015-12-05 21:11:52 +01:00
Anton Khirnov
a853388d2f hevc: change the stride of the MC buffer to be in bytes instead of elements 
Currently, the frame stride is passed in bytes, while the MC buffer size
is in int16_t elements, This can be confusing, so pass both strides in
bytes.
 2015-12-05 21:11:12 +01:00
Anton Khirnov
688417399c hevcdsp: split the pred functions by width 
This should allow for more efficient SIMD.
 2015-12-05 21:10:41 +01:00
Anton Khirnov
818bfe7f0a hevcdsp: split the epel functions by width 
This should allow for more efficient SIMD.
 2015-12-05 21:09:57 +01:00
Anton Khirnov
1f821750f0 hevcdsp: split the qpel functions by width instead of by the subpixel fraction 
This should allow for more efficient SIMD.

Keep the C versions as they are now, to allow the compiler to inline the
interpolation coefficients.
 2015-12-05 21:08:04 +01:00
Anton Khirnov
d8ebb6157d hevcdsp: fix a function name 
put_weighted_pred_avg should be put_unweighted_pred_avg, there is no
weighting there.
 2015-08-21 08:46:05 +02:00
Anton Khirnov
de1f8ead89 hevcdsp_template: templatize transquant_bypass 2014-11-17 09:25:12 +01:00
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
8eeacf31c5 hevc: Do not left shift a negative value in hevc_loop_filter_chroma 2014-02-23 14:34:41 +01:00
Guillaume Martres
faf03ecba0 hevc: Remove useless clip 
The src buffer should only contain values in the interval
[0, (1 << BIT_DEPTH) - 1].

Since shift = (BIT_DEPTH - 5), src[x] >> shift must be in
the interval [0, 31], so no clip is needed.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-01-21 11:58:52 +01:00
Guillaume Martres
a246d06fe0 hevc: clip pixels when transquant bypass is used 
The reconstructed picture should always be clipped (see section 8.6.5),
previously we did not clip coding units where
cu_transquant_bypass_flag == 1.

Sample-Id: 00001325-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-01-21 11:58:37 +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