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118 Commits

Author SHA1 Message Date
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
Vittorio Giovara
1eaae7abb8 intrax8: Reference the current AVCodecContext 
It will be needed to initialize BlockDSP in the next commit.
 2016-03-25 15:55:02 -04:00
Vittorio Giovara
8072345e9f intrax8: Keep a reference to the GetBitContext reader 
Helps in decoupling this code from mpegvideo.
 2016-03-25 15:54:29 -04:00
Vittorio Giovara
65f14128c4 intrax8: Use a constant buffer instead of a ScratchpadContext 
The size of the block is fixed (8x8 plus padding).
 2016-03-25 15:54:06 -04:00
Vittorio Giovara
eaeba6f241 intrax8: Pass the output frame to the decoding function 
Helps in decoupling this code from mpegvideo.
 2016-03-25 15:53:02 -04:00