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62 Commits

Author SHA1 Message Date
Steve Lhomme
d8039ef8d2 D3D11va: add a Direct3D11 video decoder similar to DXVA2 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2015-05-25 11:47:08 +02:00
wm4
3efe0393e4 hevc: make avcodec_decode_video2() fail if get_format() fails 
Personally, I need the decoder to back out if get_format() returns no
usable pixel format. This didn't work because the error code was not
propagated down the call chain. This in turn happened because the
variable declaration removed in this patch shadowed the variable, whose
value is returned at the end of the function. Consequently, failures of
decode_nal_unit() were ignored in this place.

Reviewed-by:  Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-19 18:59:06 +01:00
Anton Khirnov
7693ba0a0e hevc: export stream parameters from extradata 
This allows the callers to have a hint of the probable stream parameters
without actually decoding anything.
 2015-04-03 13:10:03 +02:00
Anton Khirnov
1ae7afd256 hevc: split out setting AVCodecContext parameters 
Additionally always set the software pixel format, so it's available
even if ff_get_format() is not called later. This will be useful for
exporting stream parameters from init().
 2015-04-03 13:10:02 +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
Hendrik Leppkes
7e850fa67e Add DXVA2 HEVC HWAccel 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-01-27 09:05:31 +01:00
Hendrik Leppkes
b82722df9b hevc: reindent after previous commit 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-01-27 09:05:25 +01:00
Hendrik Leppkes
e72e8c5a1d hevc: add hwaccel hooks 
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-01-27 09:05:08 +01:00
Hendrik Leppkes
4b95e95dba hevc: store the short term rps flag and size in the context 
For future use by hardware accelerators.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-01-27 09:04:59 +01:00
Hendrik Leppkes
36779a8405 hevc: store the escaped/raw bitstream in HEVCNAL 
Hardware Accelerators require access to the escaped bitstream.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-01-27 09:04:44 +01:00
Hendrik Leppkes
b0593a4bca hevc: pass the full HEVCNAL struct to decode_nal_unit 
This enables decode_nal_unit to access additional fields added in
subsequent commits.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-01-27 09:04:29 +01:00
Anton Khirnov
443b71928b hevc: unref the current frame if frame_start() fails 
Prevents DPB from filling up with damaged input.
 2015-01-27 08:34:56 +01:00
Vittorio Giovara
b2bece5e9a hevc: always clip luma_log2_weight_denom 
Its value shall be between 0 and 7 according to the specifications.

CC: libav-stable@libav.org
Bug-Id: CID 1257502
 2014-12-15 15:46:34 +01:00
Luca Barbato
cd975d5658 hevc: Spin the mv_mpv_mode calls in a stand alone function 
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2014-11-21 23:17:37 +01:00
Anton Khirnov
8b573ddda7 hevc: remove superfluous assignments and checks 2014-11-17 09:26:45 +01:00
Anton Khirnov
eac3ac1fe0 hevc: eliminate an unneeded intermediate variable 2014-11-17 09:26:45 +01:00
Anton Khirnov
eb335f3c5c hevc: reduce variable scope 
Also, collapse the array into a scalar, since only one value is needed
at a time.
 2014-11-17 09:26:45 +01:00
Anton Khirnov
84c0ece5fd hevc: further reduce code duplication in hls_prediction_unit() 2014-11-17 09:25:15 +01:00
Anton Khirnov
a7b365ae19 hevc: reduce code duplication in hls_prediction_unit() 2014-11-17 09:25:12 +01:00
Anton Khirnov
16c01fb434 hevc: remove an unused function parameter 2014-11-17 09:25:12 +01:00
Anton Khirnov
84b9463984 hevc: remove a redundant line 
pred_mode is overwritten a few lines immediately below.
 2014-11-17 09:25:12 +01:00
Anton Khirnov
2c6a7f9348 hevc: do not store rqt_root_cbf in the context 
It does not need to be accessed outside of hls_coding_unit().
 2014-11-17 09:25:12 +01:00
Anton Khirnov
920bca3e23 hevc: do not store pcm_flag in the context 
It does not need to be accessed outside of hls_coding_unit().
 2014-11-17 09:25:12 +01:00
Vittorio Giovara
b1b1a7370e display: fix order of operands 
CC: libav-stable@libav.org
Bug-Id: CID 1238828 / CID 1238832
 2014-11-13 01:41:25 +01:00
Anton Khirnov
7ea1b3472a lavc: deprecate the use of AVCodecContext.time_base for decoding 
When decoding, this field holds the inverse of the framerate that can be
written in the headers for some codecs. Using a field called 'time_base'
for this is very misleading, as there are no timestamps associated with
it. Furthermore, this field is used for a very different purpose during
encoding.

Add a new field, called 'framerate', to replace the use of time_base for
decoding.
 2014-10-15 06:37:43 +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
d1b1c3bb5e hevc: reorder loops 
iterate over memory in a more continuous order

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-08-12 09:57:05 +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
4d1ff2a489 hevc: calculate the dbf strength in hls_pcm_sample() only if dbf is enabled 2014-08-09 16:13:11 +00:00
Anton Khirnov
e76f2d1197 hevc: eliminate the last element from TransformTree 
Replace it by passing an additional parameter to transform_unit()
 2014-07-28 08:10:35 +00:00
Anton Khirnov
4aa80808bc hevc: eliminate unnecessary cbf_c{b,r} arrays 
They are replaced by passing additional parameters to the transform
functions.
 2014-07-28 08:09:18 +00:00
Anton Khirnov
0daa255463 hevc: do not store the transform inter_split flag in the context 
It does not need to be preserved.
 2014-07-28 08:05:47 +00:00
Anton Khirnov
53a11135f2 hevc: simplify splitting the transform tree blocks 2014-07-28 08:04:19 +00:00
Anton Khirnov
e36a2f4c52 hevc: eliminate an unnecessary array 
We do not need to store the value of the split flag.
 2014-07-28 08:03:53 +00:00
Gildas Cocherel
458e7c9483 hevc: implement pic_output_flag handling 
Sample-Id: OPFLAG_B_Qualcomm_1.bit, OPFLAG_C_Qualcomm_1.bit
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-07-11 08:52:54 +00:00
Mickaël Raulet
f43789b76e hevc: set the keyframe flag on output frames 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-07-11 08:43:01 +00:00
Mickaël Raulet
1493b237bd hevc: Replace nal type chek with equivalent IS_IRAP macro 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2014-07-11 08:41:32 +00:00
Vittorio Giovara
0569a7e0bd hevc: parse display orientation SEI message 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-07-09 10:18:06 -04:00
Luca Barbato
df949b645b hevc: Use the local context variable when needed 2014-07-02 23:30:49 -04:00
Diego Biurrun
c67b449beb dsputil: Split bswap*_buf() off into a separate context 2014-06-22 18:22:31 -07:00
Justin Ruggles
9e500efdbe Add av_image_check_sar() and use it to validate SAR 2014-06-20 10:39:33 -04:00
Anton Khirnov
a1c2b48018 hevc: templatize intra_pred 2014-05-19 07:10:03 +02:00
Michael Niedermayer
ed06e5d92b hevc: Do not turn 32bit timebases into negative numbers 
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2014-03-09 17:22:53 +01:00
Michael Niedermayer
6cc94e9719 hevc: use av_mallocz() for allocating tab_ipm 
Fixes use of uninitialized memory and out of stack array read.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
 2014-03-09 17:08:11 +01:00
Luca Barbato
521726ff57 hevc: Always consider VLC NALU type mismatch fatal 
Sample-Id: 00001667-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-02-19 16:59:40 +01:00
Anton Khirnov
b25e84b739 hevc: check that the VCL NAL types are the same for all slice segments of a frame 
Fixes possible invalid memory access for mismatching skipped/non-skipped
slice segments.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Sample-Id: 00001533-google
 2014-02-04 10:39:07 +01:00
Luca Barbato
816e5b9970 hevc: Reject impossible slice segment 
A dependent slice cannot have address 0.
Prevent an out of array bound load in ff_hevc_cabac_init().

Sample-Id: 00001406-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-02-01 17:04:49 +01:00
Luca Barbato
e22ebd04bc hevc: Bound check cu_qp_delta 
The T-REC-H.265-2013044 page 91 states it has to be in the range
[-(26 + s->sps->qp_bd_offset / 2), (25 + s->sps->qp_bd_offset / 2)].
 2014-01-21 11:59:54 +01:00
Luca Barbato
0d999333f9 hevc: Bound check slice_qp 
The T-REC-H.265-2013044 page 79 states it has to be in the range
[-s->sps->qp_bd_offset, 51].

Sample-Id: 00001386-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-01-21 11:59:30 +01:00
Luca Barbato
838740e642 hevc: Prevent some integer overflows 
get_ue_golomb_long() returns an unsigned.

Sample-Id: 00001541-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
 2014-01-21 11:59:18 +01:00