33 Commits

Author SHA1 Message Date
Andreas Rheinhardt
9cdf82c2c2 avcodec/vlc: Use proper namespace
Therefore use a proper prefix for this API, e.g.
ff_init_vlc_sparse -> ff_vlc_init_sparse
ff_free_vlc        -> ff_vlc_free
INIT_VLC_LE        -> VLC_INIT_LE
INIT_VLC_USE_NEW_STATIC -> VLC_INIT_USE_STATIC
(The ancient INIT_VLC_USE_STATIC has been removed
in 595324e143b57a52e2329eb47b84395c70f93087, so that
the NEW has been dropped.)
Finally, reorder the flags and change their values
accordingly.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-09-11 00:27:45 +02:00
James Almer
dc7bd7c5a5 avcodec: use the new AVFrame key_frame flag in all decoders and encoders
Signed-off-by: James Almer <jamrial@gmail.com>
2023-05-04 18:48:22 -03:00
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
b9eaf77ed1 avcodec/internal: Move ff_set_dimensions() to decode.h
Decoder-only, as the dimensions are set by the user when encoding.

Also fixup the other headers a bit while removing unnecessary internal.h
inclusions.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-08-27 14:14:57 +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
f3fef1259c avcodec/hq_hqa: Remove transient GetByteContext from context
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-07-28 03:49:54 +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
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
Michael Niedermayer
cf28521fee avcodec/hq_hqa: Check info size
Fixes: assertion failure
Fixes: 21079/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-5737046523248640

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-06-05 18:14:17 +02:00
Michael Niedermayer
a6229fcd40 avcodec/hq_hqa: Use ff_set_dimensions()
Fixes: 15530/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-5637370344374272
Fixes: signed integer overflow: 65312 * 65312 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-07-08 09:56:08 +02:00
Michael Niedermayer
407e7c34ca avcodec/hq_hqa: Check available space before reading slice offsets
Fixes: Timeout (43sec -> 18sec)
Fixes: 14556/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-5673543024508928

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>
2019-05-12 16:31:39 +02:00
Michael Niedermayer
c9222b972d avcodec/hq_hqa: Check remaining input bits in hqa_decode_mb()
Fixes: Timeout
Fixes: 9634/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-6267852259590144

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-08-25 21:50:17 +02:00
Michael Niedermayer
3d9cb583c8 avcodec/hq_hqa: Fix: runtime error: signed integer overflow: -255 * 10180917 cannot be represented in type 'int'
Fixes: 1626/clusterfuzz-testcase-minimized-6416580571299840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-05-16 23:45:01 +02:00
Michael Niedermayer
1283c42447 avcodec/hq_hqa: Fix runtime error: left shift of negative value -207
Fixes: 1375/clusterfuzz-testcase-minimized-6070134701555712

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 19:12:14 +02:00
Clément Bœsch
9b35242370 Merge commit 'b7f98659f21dce438c33b512e25fd64b8d07c347'
* commit 'b7f98659f21dce438c33b512e25fd64b8d07c347':
  Remove unnecessary get_bits.h #includes

Merged-by: Clément Bœsch <clement@stupeflix.com>
2016-06-29 11:16:01 +02:00
Diego Biurrun
b7f98659f2 Remove unnecessary get_bits.h #includes 2016-06-07 13:09:57 +02:00
Carl Eugen Hoyos
144ef773c7 Use correct msvc type specifiers for ptrdiff_t and size_t. 2016-03-09 14:00:22 +01:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de6021965db86c25a732d78689bd6bb0'
* commit 'def97856de6021965db86c25a732d78689bd6bb0':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-27 22:50:18 +02:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-07-27 15:24:58 +01:00
Michael Niedermayer
1cdfae0b3e Merge commit '0cf5588d69922aa3e063bac6304c09c543a9ef52'
* commit '0cf5588d69922aa3e063bac6304c09c543a9ef52':
  hq_hqa: Fix decoding when INFO section is absent

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-17 14:59:18 +02:00
Vittorio Giovara
0cf5588d69 hq_hqa: Fix decoding when INFO section is absent 2015-07-17 01:49:42 +01:00
Michael Niedermayer
653bf3c5a1 avcodec/hq_hqa: Fix signness of tag
Fixes Ticket4509

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-08 19:11:27 +02:00
Michael Niedermayer
400810abee Merge commit '28eddef689f2b4843a84f7d05fd9614246f92cc4'
* commit '28eddef689f2b4843a84f7d05fd9614246f92cc4':
  hq_hqa: Validate get_vlc2 return value

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-23 21:57:16 +02:00
Luca Barbato
28eddef689 hq_hqa: Validate get_vlc2 return value
The `hq_ac_vlc.table` is incomplete, so unaccounted symbol return -1
as value.
2015-04-22 12:27:43 +02:00
Paul B Mahol
77e794908b avcodec/hq_hqa: remove superfluous log message
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-04-21 13:19:32 +00:00
Michael Niedermayer
1a41415b2a Merge commit 'bd5ad8b23d0f7d469ca30d03deca879993eb0431'
* commit 'bd5ad8b23d0f7d469ca30d03deca879993eb0431':
  hq_hqa: Fix reading hqa quantization matrix index

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-20 23:20:36 +02:00
Vittorio Giovara
bd5ad8b23d hq_hqa: Fix reading hqa quantization matrix index
Value is stored as a byte.
2015-04-20 19:20:22 +01:00
Michael Niedermayer
5a284d076f Merge commit '22526c1f557a72b3285d295bd8b30c40eb65d437'
* commit '22526c1f557a72b3285d295bd8b30c40eb65d437':
  Canopus HQ/HQA decoder

Conflicts:
	Changelog
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-20 05:28:13 +02:00
Vittorio Giovara
22526c1f55 Canopus HQ/HQA decoder
Based on work by Kostya Shishkov <kostya.shishkov@gmail.com>.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-04-19 22:37:23 +01:00