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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-03 14:32:16 +02:00

85 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 0c6203c97a99f69dbaa6e4011d48c331e1111f5e.
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
James Almer
13450b6722 avcodec/mpegvideo_enc: ensure lmin is smaller than lmax
Fixes ticket 

Signed-off-by: James Almer <jamrial@gmail.com>
2023-04-18 22:14:06 -03:00
Anton Khirnov
8d73f3ce56 lavc: support AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE in all no-delay encoders
Including fake-delay encoders marked with FF_CODEC_CAP_EOF_FLUSH.
2023-01-29 09:22:57 +01:00
Marton Balint
103617c93c avcodec/mpegvideo_enc: remove picture_number parameter from encode functions
They are unused.

Signed-off-by: Marton Balint <cus@passwd.hu>
2023-01-26 20:37:01 +01:00
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
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
d587b1c323 avcodec/mpegvideoenc: Remove ineffective options
This commit removes the ineffective FF_MPV_DEPRECATED_ options,
namely mpeg_quant (this is only an option for MPEG-4), a53cc
(this is only an option for MPEG-2), force_duplicated_matrix
(applies only to MJPEG) and b_strategy, b_sensitivity and brd_scale
(these options only make sense for encoders supporting B-frames,
which currently means the MPEG-1/2 and MPEG-4 encoders).
Given that these options never changed the outcome of encoding,
they are removed at once.

Notice that the options for the encoders for which it made sense
are not affected by this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-05-24 21:37:17 +02:00
Andreas Rheinhardt
de640d2b53 avcodec/mjpegenc: Remove pointless motion-estimation options
(M)JPEG does not use motion estimation/motion vectors at all.
These options therefore don't affect the output at all.
So remove them.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-05-24 21:36:45 +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
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
Martin Storsjö
a78f136f3f configure: Use a separate config_components.h header for $ALL_COMPONENTS
This avoids unnecessary rebuilds of most source files if only the
list of enabled components has changed, but not the other properties
of the build, set in config.h.

Signed-off-by: Martin Storsjö <martin@martin.st>
2022-03-16 14:12:49 +02:00
Andreas Rheinhardt
18e75f493d avcodec/mpegvideo: Remove write-only [fb]_code
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-02-13 19:49:29 +01:00
Andreas Rheinhardt
746e7102be avcodec/mpegvideo: Move encoder-only stuff to a new header
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-02-13 19:49:29 +01:00
Andreas Rheinhardt
f78ffe382c avcodec/flv.h: Split header into encoder-only and decoder-only headers
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-02-13 19:45:39 +01:00
Andreas Rheinhardt
20d74fb09d avcodec/h263.h: Move encoder-only stuff to a new header h263enc.h
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-02-13 19:41:43 +01:00
Andreas Rheinhardt
e17ceeba3c avcodec/mpegvideo_enc: Move H.263p? encoders to ituh263enc.c
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-29 18:34:31 +01:00
Andreas Rheinhardt
f2da650258 avcodec/ituh263enc: Use stack variable for aspect_ratio_info
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-29 18:34:30 +01:00
Andreas Rheinhardt
769703613a avcodec/ituh263enc: Use stack variable for custom_pcf
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-29 18:34:30 +01:00
Andreas Rheinhardt
c21433c953 avcodec/mpeg4video: Split off data in a header of its own
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-13 08:15:28 +01:00
Andreas Rheinhardt
6739bb5a0e avcodec/h263: Move functions only used once to their caller
In this case it means moving ff_h263_pred_dc() resp. ff_h263_pred_acdc()
to ituh263enc.c resp. ituh263dec.c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-09 09:28:37 +01:00
Andreas Rheinhardt
fea1f42e5f avcodec/ituh263enc: Make static initializations thread-safe
This already makes several encoders (namely FLV, H.263, H.263+ and
RealVideo 1.0 and 2.0 and SVQ1) that use this init-threadsafe.

It also makes the Snow encoder init-threadsafe; it was already marked
as such since commit d49210788b0836d56dd872d517fe73f83b080101, because
it was thought to be harmless if one and the same object was
initialized by multiple threads at the same time.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-04-27 00:30:36 +02:00
Andreas Rheinhardt
61fe481586 avcodec/h263data, ituh263*: Make initializing RL inter table thread-safe
Up until now, ff_h263_rl_inter was initialized by both ituh263dec and
ituh263enc; this is an obstacle in making the codecs that use this code
init-threadsafe.

This obstacle is eliminated by only initializing this RLTable from
a single place that is guarded by a dedicated AVOnce.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-25 14:52:58 +01:00
Andreas Rheinhardt
12d0bb382b avcodec/ituh263enc: Remove unused function parameter
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-01-25 14:52:55 +01:00
Anton Khirnov
717503f716 put_bits: make avpriv_align_put_bits() inline
This function is so extremely simple that it is preferable to make it
inline rather than deal with all the complications arising from it being
an exported symbol.

Keep avpriv_align_put_bits() around until the next major bump to
preserve ABI compatibility.
2020-10-28 13:53:23 +01:00
Clément Bœsch
4b9574b275 Merge commit '197ae68e78784524a7ccf97a3c301092715305d3'
* commit '197ae68e78784524a7ccf97a3c301092715305d3':
  Drop unnecessary unary.h #includes

Merged-by: Clément Bœsch <clement@stupeflix.com>
2016-06-29 11:52:34 +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
197ae68e78 Drop unnecessary unary.h #includes 2016-06-08 18:51:56 +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
Michael Niedermayer
5b4da8a38a avcodec/motion_est: Fix mv_penalty table size
Fixes out of array read

Found-by: Tyson Smith <twsmith@mozilla.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-05 18:10:34 +01:00
Michael Niedermayer
94d68a41fa Merge commit '7c6eb0a1b7bf1aac7f033a7ec6d8cacc3b5c2615'
* commit '7c6eb0a1b7bf1aac7f033a7ec6d8cacc3b5c2615':
  lavc: AV-prefix all codec flags

Conflicts:
	doc/examples/muxing.c
	ffmpeg.c
	ffmpeg_opt.c
	ffplay.c
	libavcodec/aacdec.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/ac3enc_float.c
	libavcodec/atrac1.c
	libavcodec/atrac3.c
	libavcodec/atrac3plusdec.c
	libavcodec/dcadec.c
	libavcodec/ffv1enc.c
	libavcodec/h264.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_mb.c
	libavcodec/imc.c
	libavcodec/libmp3lame.c
	libavcodec/libtheoraenc.c
	libavcodec/libtwolame.c
	libavcodec/libvpxenc.c
	libavcodec/libxavs.c
	libavcodec/libxvid.c
	libavcodec/mpeg12dec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegaudiodec_template.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/nellymoserdec.c
	libavcodec/nellymoserenc.c
	libavcodec/nvenc.c
	libavcodec/on2avc.c
	libavcodec/options_table.h
	libavcodec/opus_celt.c
	libavcodec/pngenc.c
	libavcodec/ra288.c
	libavcodec/ratecontrol.c
	libavcodec/twinvq.c
	libavcodec/vc1_block.c
	libavcodec/vc1_loopfilter.c
	libavcodec/vc1_mc.c
	libavcodec/vc1dec.c
	libavcodec/vorbisdec.c
	libavcodec/vp3.c
	libavcodec/wma.c
	libavcodec/wmaprodec.c
	libavcodec/x86/hpeldsp_init.c
	libavcodec/x86/me_cmp_init.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-27 22:10:35 +02:00
Vittorio Giovara
7c6eb0a1b7 lavc: AV-prefix all codec flags
Convert doxygen to multiline and express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-07-27 15:24:58 +01:00
Michael Niedermayer
218f58a16a Merge commit 'e3d0f49abb20a551bf6d885f75c354d6d0bbeb9d'
* commit 'e3d0f49abb20a551bf6d885f75c354d6d0bbeb9d':
  mpegvideo: h263: Move all tables to a single file

Conflicts:
	libavcodec/h263.h
	libavcodec/h263data.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-12 20:57:37 +02:00
Vittorio Giovara
e3d0f49abb mpegvideo: h263: Move all tables to a single file 2015-06-12 12:26:04 +01:00
Michael Niedermayer
fd116b8dfa Merge commit '378a00087fdadcc9b34165c05cd10a1a15f3fe61'
* commit '378a00087fdadcc9b34165c05cd10a1a15f3fe61':
  mpegvideo: Move tables to a separate file

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-01 01:26:36 +02:00
Vittorio Giovara
378a00087f mpegvideo: Move tables to a separate file 2015-05-31 13:06:19 +02:00
Michael Niedermayer
75647622b5 Merge commit '6f57375d707de40dcec28d3cef886c364e032c21'
* commit '6f57375d707de40dcec28d3cef886c364e032c21':
  rl: Rename ff_*_rl() to ff_rl_*()

Conflicts:
	libavcodec/mpeg4videodec.c
	libavcodec/rl.c
	libavcodec/rl.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-28 21:48:49 +02:00
Anton Khirnov
6f57375d70 rl: Rename ff_*_rl() to ff_rl_*() 2015-05-28 15:38:43 +01:00
Michael Niedermayer
db5ea69d80 avcodec/ituh263enc: Pass PutBitContext into h263p_encode_umotion() instead of MpegEncContext
This avoids the need to dereference MpegEncContext->pb if it is
already available outside h263p_encode_umotion()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-24 17:27:47 +02:00
Michael Niedermayer
404fe63e23 avcodec: Pass PutBitContext into ff_h263_encode_motion() instead of MpegEncContext
This avoids the need to dereference MpegEncContext->pb if it is
already available outside ff_h263_encode_motion()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-24 17:15:18 +02:00
Michael Niedermayer
d9b264bc73 Merge commit '848e86f74d3e6e87fa592ee8ba8c184cc5fd9a42'
* commit '848e86f74d3e6e87fa592ee8ba8c184cc5fd9a42':
  mpegvideo: Drop flags and flags2

Conflicts:
	libavcodec/mpeg12dec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/ratecontrol.c
	libavcodec/vc1_block.c
	libavcodec/vc1_loopfilter.c
	libavcodec/vc1_mc.c
	libavcodec/vc1dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-22 20:24:41 +02:00
Vittorio Giovara
848e86f74d mpegvideo: Drop flags and flags2
They are just duplicates of AVCodecContext members so use those instead.
2015-05-22 15:34:39 +01:00
Michael Niedermayer
db0a52d611 avcodec/ituh263enc: Check den==0 in ff_h263_aspect_to_info()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-12-29 15:51:36 +01:00
Michael Niedermayer
1caedf629a avcodec/ituh263enc: fix advanced intra coding
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-21 04:05:28 +02:00
Michael Niedermayer
2cf4d91cf2 Merge commit 'cd62c04d009b3baf7582556866a7029291b54573'
* commit 'cd62c04d009b3baf7582556866a7029291b54573':
  h263enc: keep block_last_index always valid during advanced intra coding

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-11 22:53:28 +02:00
Janne Grunau
cd62c04d00 h263enc: keep block_last_index always valid during advanced intra coding
Prevents a triggered assert during fate-vsynth{1,2}-rv20 in
dct_unquantize_h263_intra_c().
2014-06-11 21:28:39 +02:00
Michael Niedermayer
9517900bef Merge commit 'e0c16e4e3259cf50b5bac4c23bb6e517f397c74b'
* commit 'e0c16e4e3259cf50b5bac4c23bb6e517f397c74b':
  mpegvideo: move mpegvideo formats-related defines to mpegutils.h

Conflicts:
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_mvpred.h
	libavcodec/svq1enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-17 12:36:48 +01:00
Vittorio Giovara
e0c16e4e32 mpegvideo: move mpegvideo formats-related defines to mpegutils.h 2014-03-16 23:04:41 +01:00
Michael Niedermayer
efc08e00cc Merge commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110'
* commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110':
  vf_aspect: use the name 's' for the pointer to the private context
  Remove commented-out debug #define cruft

Conflicts:
	libavcodec/4xm.c
	libavcodec/dvdsubdec.c
	libavcodec/ituh263dec.c
	libavcodec/mpeg12.c
	libavfilter/avfilter.c
	libavfilter/vf_aspect.c
	libavfilter/vf_fieldorder.c
	libavformat/rtmpproto.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-16 09:56:43 +02:00