Commit Graph

38 Commits

Author SHA1 Message Date
Anton Khirnov 08bebeb1be Revert "all: Don't set AVClass.item_name to its default value"
Some callers assume that item_name is always set, so this may be
considered an API break.

This reverts commit 0c6203c97a.
2024-01-20 10:34:48 +01:00
Andreas Rheinhardt 0c6203c97a all: Don't set AVClass.item_name to its default value
Unnecessary since acf63d5350adeae551d412db699f8ca03f7e76b9;
also avoids relocations.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-12-22 15:12:33 +01:00
Anton Khirnov 8b20d0dcb5 lavc: deprecate AV_CODEC_CAP_SUBFRAMES
There is nothing meaningful the caller can do with it.
2023-05-15 10:24:54 +02:00
Andreas Rheinhardt 48286d4d98 avcodec/codec_internal: Add macro to set AVCodec.long_name
It reduces typing: Before this patch, there were 105 codecs
whose long_name-definition exceeded the 80 char line length
limit. Now there are only nine of them.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-03 15:42:57 +02:00
Andreas Rheinhardt 66b691f99f avcodec/internal: Move ff_get_buffer() to decode.h
Only used by decoders (encoders have ff_encode_alloc_frame()).

Also clean up the other headers a bit while removing now redundant
internal.h inclusions.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-08-27 14:14:56 +02:00
Andreas Rheinhardt 21b23ceab3 avcodec: Make init-threadsafety the default
and remove FF_CODEC_CAP_INIT_THREADSAFE
All our native codecs are already init-threadsafe
(only wrappers for external libraries and hwaccels
are typically not marked as init-threadsafe yet),
so it is only natural for this to also be the default state.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-07-18 20:04:59 +02:00
Andreas Rheinhardt 4243da4ff4 avcodec/codec_internal: Use union for FFCodec decode/encode callbacks
This is possible, because every given FFCodec has to implement
exactly one of these. Doing so decreases sizeof(FFCodec) and
therefore decreases the size of the binary.
Notice that in case of position-independent code the decrease
is in .data.rel.ro, so that this translates to decreased
memory consumption.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-04-05 20:02:37 +02:00
Andreas Rheinhardt ce7dbd0481 avcodec/codec_internal: Make FFCodec.decode use AVFrame*
This increases type-safety by avoiding conversions from/through void*.
It also avoids the boilerplate "AVFrame *frame = data;" line
for non-subtitle decoders.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-04-05 19:54:09 +02:00
Andreas Rheinhardt 20f9727018 avcodec/codec_internal: Add FFCodec, hide internal part of AVCodec
Up until now, codec.h contains both public and private parts
of AVCodec. This exposes the internals of AVCodec to users
and leads them into the temptation of actually using them
and forces us to forward-declare structures and types that
users can't use at all.

This commit changes this by adding a new structure FFCodec to
codec_internal.h that extends AVCodec, i.e. contains the public
AVCodec as first member; the private fields of AVCodec are moved
to this structure, leaving codec.h clean.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-03-21 01:33:09 +01:00
Andreas Rheinhardt a688f3c13c avcodec/internal: Move FF_CODEC_CAP_* to a new header codec_internal.h
Also move FF_CODEC_TAGS_END as well as struct AVCodecDefault.
This reduces the amount of files that have to include internal.h
(which comes with quite a lot of indirect inclusions), as e.g.
most encoders don't need it. It is furthemore in preparation
for moving the private part of AVCodec out of the public codec.h.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-03-21 01:33:09 +01:00
Anton Khirnov 182866e9e4 g723_1: convert to new channel layout API
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: James Almer <jamrial@gmail.com>
2022-03-15 09:42:41 -03:00
Andreas Rheinhardt 2079f95b38 avcodec/g723_1dec: Mark decoder as init-threadsafe
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-02 03:05:12 +02:00
Andreas Rheinhardt a247ac640d avcodec: Constify AVCodecs
Given that the AVCodec.next pointer has now been removed, most of the
AVCodecs are not modified at all any more and can therefore be made
const (as this patch does); the only exceptions are the very few codecs
for external libraries that have a init_static_data callback.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-27 10:43:15 -03:00
Andreas Rheinhardt 9c318b30f3 avcodec/g723_1: Move tables to their only user
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-08 05:05:10 +01:00
Andreas Rheinhardt 3d284e35c2 avcodec/g723_1: Deduplicate arrays
Saves about 17KB.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-08 05:05:10 +01:00
Michael Niedermayer 1850c3feaa avcodec/g723_1dec: fix invalid shift with negative sid_gain
Fixes: left shift of negative value -1
Fixes: 18395/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G723_1_fuzzer-5710313034350592

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-10-29 16:20:33 +01:00
Michael Niedermayer 07732f12a4 avcodec/g723_1dec: Fix overflow in shift
Fixes: shift exponent 1008 is too large for 32-bit type 'int'
Fixes: 17700/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G723_1_fuzzer-5707633436131328

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-10-16 19:17:57 +02:00
Andreas Rheinhardt 54e1efda6d avcodec/g723_1dec: Fix invalid shift
Fixes the FATE-tests g723_1-dec-1, g723_1-dec-2 and g723_1-dec-4.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-09-20 23:26:34 +02:00
Paul B Mahol 0ce759defd avcodec/g723_1dec: actually decode second channel 2019-03-07 01:58:43 +01:00
Paul B Mahol f52dd8a55a avcodec/g723_1dec: use init_get_bits8() 2018-12-23 15:40:47 +01:00
Paul B Mahol d283ee085f avcodec/g723_1dec: improve stereo support 2018-12-18 18:58:35 +01:00
Paul B Mahol 7a124138a7 avcodec/g723_1dec: reindent after last commit 2018-12-18 18:52:39 +01:00
Paul B Mahol 62dbcb7ddf avcodec/g723_1: add support for stereo files 2018-12-18 18:52:39 +01:00
Michael Niedermayer 53f241218d avcodec/g723_1dec: Clip bits2 in both directions
Fixes: shift exponent 33 is too large for 32-bit type 'int'
Fixes: 6743/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G723_1_fuzzer-5823772687859712

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-05-27 23:10:12 +02:00
Michael Niedermayer 23868ad5cb avcodec/g723_1dec: Clip after shift in estimate_sid_gain()
Fixes: runtime error: left shift of 706 by 22 places cannot be represented in type 'int'
See: L_shl() in the reference software
Fixes: 1609/clusterfuzz-testcase-minimized-5102163007111168

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-05-20 17:55:01 +02:00
Michael Niedermayer f2c539d350 avcodec/g723_1dec: Fix LCG type
Fixes: 1567/clusterfuzz-testcase-minimized-5693653555085312

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-05-14 15:30:08 +02:00
Michael Niedermayer c4c0245686 avcodec/g723_1dec: Fix runtime error: left shift of negative value -1
Fixes: 1504/clusterfuzz-testcase-minimized-6249212138225664

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-05-12 13:40:59 +02:00
Michael Niedermayer d3088e0fd8 avcodec/g723_1dec: Fix several integer related cases of undefined behaviour
Fixes: 1412/clusterfuzz-testcase-minimized-6561308772139008

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-05-09 00:42:20 +02:00
Michael Niedermayer 4ace2d2219 avcodec/g723_1: Fix multiple runtime error: left shift of negative value
Fixes: 1367/clusterfuzz-testcase-minimized-571496882346393

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-05-06 16:33:31 +02:00
Clément Bœsch ae753dbd0d Merge commit 'b668662939de3a02454cfc9ba3e6d10b87527a40'
* commit 'b668662939de3a02454cfc9ba3e6d10b87527a40':
  get_bits: Move BITSTREAM_READER_LE definition before all relevant #includes

The merge commit also includes changes for libavcodec/interplayacm.c and
libavcodec/truemotion2rt.c

Merged-by: Clément Bœsch <clement@stupeflix.com>
2016-06-29 11:35:10 +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
Diego Biurrun b668662939 get_bits: Move BITSTREAM_READER_LE definition before all relevant #includes
This avoids the danger that get_bits.h might get indirectly #included before
BITSTREAM_READER_LE is defined.

Also sort headers into canonical order where appropriate.
2016-06-07 13:09:57 +02:00
Vittorio Giovara 41ed7ab45f cosmetics: Fix spelling mistakes
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2016-05-04 18:16:21 +02:00
Hendrik Leppkes 90c93fb129 Merge commit 'f023d57d355ff3b917f1aad9b03db5c293ec4244'
* commit 'f023d57d355ff3b917f1aad9b03db5c293ec4244':
  lavc: G.723.1 encoder

Split existing FFmpeg G.723.1 encoder into a new file.

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-12-07 15:50:45 +01:00
Hendrik Leppkes 6c9cc21bcc Merge commit '165cc6fb9defcd79fd71c08167f3e8df26b058ff'
* commit '165cc6fb9defcd79fd71c08167f3e8df26b058ff':
  g723_1: Move sharable functions to a separate file

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-12-07 15:26:41 +01:00
Hendrik Leppkes 9cf74191ed Merge commit 'aac996cc01042194bf621d845bbe684549b5882e'
* commit 'aac996cc01042194bf621d845bbe684549b5882e':
  g723_1: Rename files to better reflect their purpose

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-12-07 15:04:13 +01:00
Vittorio Giovara 165cc6fb9d g723_1: Move sharable functions to a separate file
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-11-30 10:58:45 -05:00
Vittorio Giovara aac996cc01 g723_1: Rename files to better reflect their purpose
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-11-30 10:58:45 -05:00