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122 Commits

Author SHA1 Message Date
Andreas Rheinhardt
fd72d8aea3 avcodec/blockdsp: Remove unused AVCodecContext parameter 
Possible since be95df12bb.

Reviewed-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-09-21 20:24:40 +02:00
Andreas Rheinhardt
900ce6f8c3 avcodec/intrax8: Avoid indirection when accessing VLC table 
To do so, store the pointer to the VLC table and not to the VLC.
This is possible, because all the VLCs of the same type use
the same number of bits.
Also use a const VLCElem*, because the target is static and must
therefore not be modified after its initialization.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-08-03 21:23:35 +02:00
Andreas Rheinhardt
eb5c5ae658 avcodec/intrax8: Remove unused IDCTDSPContext 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-08-03 21:10:00 +02:00
Andreas Rheinhardt
2d764069be avcodec/vlc: Use structure instead of VLC_TYPE array as VLC element 
In C, qualifiers for arrays are broken:
const VLC_TYPE (*foo)[2] is a pointer to an array of two const VLC_TYPE
elements and unfortunately this is not compatible with a pointer
to a const array of two VLC_TYPE, because the latter does not exist
as array types are never qualified (the qualifier applies to the base
type instead). This is the reason why get_vlc2() doesn't accept
a const VLC table despite not modifying the table at all, as
there is no automatic conversion from VLC_TYPE (*)[2] to
const VLC_TYPE (*)[2].

Fix this by using a structure VLCElem for the VLC table.
This also has the advantage of making it clear which
element is which.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-06-17 16:47:29 +02:00
Andreas Rheinhardt
abf1a4f05c avcodec/intrax8: Reduce the size of tables used to initialize VLCs 
By switching from ff_init_vlc_sparse() to ff_init_vlc_from_lengths() one
can replace an array of codes of type uint16_t with an array of symbols
of type uint8_t, saving space.

Also remove some more code duplication while at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-08 17:51:47 +01:00
Andreas Rheinhardt
d1a1f11712 avcodec/intrax8: Avoid code duplication when initializing VLCs 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-08 17:51:47 +01:00
Andreas Rheinhardt
ba69ee8801 avcodec/intrax8: Remove VLC offsets table 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-08 17:51:47 +01:00
Andreas Rheinhardt
b1af617f51 avcodec/intrax8: Make ff_intrax8_common_init() thread-safe 
In particular, don't reinitialize VLCs every time an IntraX8Context is
initialized.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-11-24 11:35:03 +01:00
Andreas Rheinhardt
802baf212d avcodec/intrax8: Replace always-false check by assert 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-11-24 11:35:03 +01:00
Michael Niedermayer
0a9ccc2514 avcodec/intrax8: Check for end of bitstream in ff_intrax8_decode_picture() 
Fixes: Timeout (105sec -> 1sec)
Fixes: 20479/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5769846937878528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2020-04-26 18:23:16 +02:00
Clément Bœsch
b76dd6a678 Merge commit 'ee59f0540875ab42496af2aacddd942757707683' 
* commit 'ee59f0540875ab42496af2aacddd942757707683':
  intrax8: Have function signature match across declaration and definition

Merged-by: Clément Bœsch <cboesch@gopro.com>
 2017-03-30 10:03:59 +02:00
Clément Bœsch
6eb75e7d59 Merge commit '3281d823cdc7601c4900eb103958c05f59f65555' 
* commit '3281d823cdc7601c4900eb103958c05f59f65555':
  intrax8: Change type of array stride parameters to ptrdiff_t

Merged-by: Clément Bœsch <u@pkh.me>
 2017-03-21 15:13:36 +01:00
Diego Biurrun
ee59f05408 intrax8: Have function signature match across declaration and definition 
libavcodec/intrax8.c(776) : warning C4028: formal parameter 1 different from declaration
 2016-11-03 15:50:48 +01:00
Diego Biurrun
3281d823cd intrax8: Change type of array stride parameters to ptrdiff_t 
ptrdiff_t is the correct type for array strides and similar.

Also rename all such parameters to "stride" for consistency.
 2016-09-29 14:48:03 +02:00
Carl Eugen Hoyos
db8e8c9731 lavc/intrax8: Use correct printf specifier for size_t on Windows. 2016-07-22 19:23:01 +02:00
Clément Bœsch
8ef57a0d61 Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb' 
* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb':
  cosmetics: Fix spelling mistakes

Merged-by: Clément Bœsch <u@pkh.me>
 2016-06-21 21:55:34 +02:00
Derek Buitenhuis
e811ebcd9c Merge commit 'ca8c7591735c0f80cc29e31e2e92cb10228e14c7' 
* commit 'ca8c7591735c0f80cc29e31e2e92cb10228e14c7':
  intrax8: Remove mpegvideo dependency

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:41:27 +01:00
Derek Buitenhuis
f2c7812839 Merge commit '6ebd06a9b2508747a135ee4c880d8f612e08932b' 
* commit '6ebd06a9b2508747a135ee4c880d8f612e08932b':
  intrax8: Drop lots of pointless parentheses

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:40:21 +01:00
Derek Buitenhuis
741960e2f3 Merge commit '9b57995cdd489a4cff51dcc1a1f08ac77ec5a58c' 
* commit '9b57995cdd489a4cff51dcc1a1f08ac77ec5a58c':
  intrax8: Drop MB emulation code

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:40:05 +01:00
Derek Buitenhuis
f110c624b1 Merge commit '9fa888c02801fff2e8817c24068f5296bbe60000' 
* commit '9fa888c02801fff2e8817c24068f5296bbe60000':
  intrax8: Keep a reference to the decoder blocks

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:39:44 +01:00
Derek Buitenhuis
c59c792470 Merge commit 'c2084ffcbfc11d1b6ed3a4a0df9cafd56fbb896f' 
* commit 'c2084ffcbfc11d1b6ed3a4a0df9cafd56fbb896f':
  intrax8: Use the generic horizband function

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:37:32 +01:00
Derek Buitenhuis
123fef54cc Merge commit 'b1268e0f032a3af3912fe3fb8d3855e12d7ea83b' 
* commit 'b1268e0f032a3af3912fe3fb8d3855e12d7ea83b':
  intrax8: Pass macroblock coordinates to ff_intrax8_decode_picture

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:36:54 +01:00
Derek Buitenhuis
578fb5a27d Merge commit 'd0540fd02171a6233d2016b199d013299debf7e3' 
* commit 'd0540fd02171a6233d2016b199d013299debf7e3':
  intrax8: Pass macroblock size to ff_intrax8_common_init

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-05-07 21:35:20 +01:00
Vittorio Giovara
41ed7ab45f cosmetics: Fix spelling mistakes 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 18:16:21 +02:00
Derek Buitenhuis
896fce8509 Merge commit '159323897f545e7405fb9db234e0ba123e174376' 
* commit '159323897f545e7405fb9db234e0ba123e174376':
  intrax8: Add a local BlockDSPContext and initialize it

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:36:23 +01:00
Derek Buitenhuis
52692eed61 Merge commit '1eaae7abb8f208fefb4e8b9e983e61b2499206a3' 
* commit '1eaae7abb8f208fefb4e8b9e983e61b2499206a3':
  intrax8: Reference the current AVCodecContext

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:34:58 +01:00
Derek Buitenhuis
50fa5715bc Merge commit '8072345e9f86d88fbc4a15c17cb03f1e4701c9a5' 
* commit '8072345e9f86d88fbc4a15c17cb03f1e4701c9a5':
  intrax8: Keep a reference to the GetBitContext reader

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:34:16 +01:00
Derek Buitenhuis
93c61c980d Merge commit '65f14128c4bcf8fcd9d3ba1e20b7a22057c9cfb0' 
* commit '65f14128c4bcf8fcd9d3ba1e20b7a22057c9cfb0':
  intrax8: Use a constant buffer instead of a ScratchpadContext

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:33:07 +01:00
Derek Buitenhuis
36dad14693 Merge commit 'eaeba6f241e0de0e797be10f8fda967ef8489e64' 
* commit 'eaeba6f241e0de0e797be10f8fda967ef8489e64':
  intrax8: Pass the output frame to the decoding function

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:32:38 +01:00
Derek Buitenhuis
e5c655b098 Merge commit '577393321c389ad2973bec6168a8045c94a9e099' 
* commit '577393321c389ad2973bec6168a8045c94a9e099':
  intrax8: Carry over the loopfilter value in ff_intrax8_decode_picture

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:31:14 +01:00
Derek Buitenhuis
83e0b1b1d7 Merge commit '68127e1bf8037a6e0acd6401cc8c5da950e3fa0a' 
* commit '68127e1bf8037a6e0acd6401cc8c5da950e3fa0a':
  intrax8: Keep a reference to the context idctdsp

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:19:53 +01:00
Derek Buitenhuis
627115b3e4 Merge commit '65127450add50c3bca307edc0517d2e8382717a0' 
* commit '65127450add50c3bca307edc0517d2e8382717a0':
  intrax8: Make x8_init_block_index not use mpegvideo fields

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:16:16 +01:00
Derek Buitenhuis
1a9ffc59d2 Merge commit '922b7e6d86e6197dfa5ebde602dd12cc66fb5f1f' 
* commit '922b7e6d86e6197dfa5ebde602dd12cc66fb5f1f':
  intrax8: Use local destination buffers

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-24 12:08:11 +01:00
Michael Niedermayer
76d0209db4 avcodec/intrax8: Remove duplicated chunk from ba5bcf9612 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-04-18 00:59:18 +02:00
Derek Buitenhuis
9d4799c247 Merge commit '8dead2aaca4aa8b84b77b05745755afb56b7d37a' 
* commit '8dead2aaca4aa8b84b77b05745755afb56b7d37a':
  Move const qualifier before type name

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:35:03 +01:00
Derek Buitenhuis
f64b53f2bf Merge commit '0372e73f917e72c40b09270f771046fc142be4a7' 
* commit '0372e73f917e72c40b09270f771046fc142be4a7':
  intrax8: Check and propagate errors from ff_intrax8_common_init

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:31:32 +01:00
Derek Buitenhuis
c29ac4abb8 Merge commit 'ad8aa8e6c648b61f01b9f106f27b9d4f3d094345' 
* commit 'ad8aa8e6c648b61f01b9f106f27b9d4f3d094345':
  intrax8: Move documentation from implementation to header file

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:30:01 +01:00
Derek Buitenhuis
ba5bcf9612 Merge commit '2ade1cdafb96bf47e77f7ed74731d78a30aae950' 
* commit '2ade1cdafb96bf47e77f7ed74731d78a30aae950':
  intrax8: K&R formatting cosmetics

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:27:53 +01:00
Derek Buitenhuis
7120bff0a3 Merge commit '6f5ff559dbd01fa4ea96bc0a1d2e0c21f2db8d13' 
* commit '6f5ff559dbd01fa4ea96bc0a1d2e0c21f2db8d13':
  intrax8: Adjust printf conversion specifier for sizeof expression

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:13:30 +01:00
Derek Buitenhuis
2c3e38f44f Merge commit '42244ce07a1f4f5108ae86d50fe72db785d483ed' 
* commit '42244ce07a1f4f5108ae86d50fe72db785d483ed':
  intrax8: Move a comment to the place it corresponds

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:11:43 +01:00
Derek Buitenhuis
e445b80c74 Merge commit '750562549ceef268b29b94f6a887d9cf331a8c78' 
* commit '750562549ceef268b29b94f6a887d9cf331a8c78':
  intrax8: Wrap multiline macros in do{}while(0) clauses

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:11:17 +01:00
Derek Buitenhuis
909f5e7100 Merge commit '0c6a70873fc6e43194b471d112c30823b6c8d0b4' 
* commit '0c6a70873fc6e43194b471d112c30823b6c8d0b4':
  intrax8: Move error resilience out of intrax8

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-17 19:09:12 +01:00
Vittorio Giovara
ca8c759173 intrax8: Remove mpegvideo dependency 2016-03-29 13:41:09 +02:00
Diego Biurrun
6ebd06a9b2 intrax8: Drop lots of pointless parentheses 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2016-03-29 13:41:09 +02:00
Vittorio Giovara
9b57995cdd intrax8: Drop MB emulation code 
This is already performed in init_context_frame().
 2016-03-29 13:41:09 +02:00
Vittorio Giovara
9fa888c028 intrax8: Keep a reference to the decoder blocks 2016-03-29 13:41:09 +02:00
Vittorio Giovara
c2084ffcbf intrax8: Use the generic horizband function 
This is assuming that intrax8 has no support for interlacing
Carry over lowdelay value in ff_intrax8_decode_picture.
 2016-03-29 13:41:09 +02:00
Vittorio Giovara
b1268e0f03 intrax8: Pass macroblock coordinates to ff_intrax8_decode_picture 
These values need to be updated with the last macroblock position,
so keep them as pointers.
 2016-03-29 13:41:09 +02:00
Vittorio Giovara
d0540fd021 intrax8: Pass macroblock size to ff_intrax8_common_init 
Helps in decoupling this code from mpegvideo.
 2016-03-29 13:41:09 +02:00
Vittorio Giovara
159323897f intrax8: Add a local BlockDSPContext and initialize it 
Helps in decoupling this code from mpegvideo.
 2016-03-25 15:55:49 -04:00