Commit graph

26 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 acf63d5350;
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
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
6ed0d95fa2 avcodec/codec_internal: Constify AVPacket in decode_sub cb
No subtitle decoder ever modifies the AVPacket given to it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-04-05 20:02:47 +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
fb59a42ef9 avcodec/codec_internal: Add FFCodec.decode_sub
This increases type-safety by avoiding conversions from/through void*.
It also avoids the boilerplate "AVSubtitle *sub = data;" line
for subtitle decoders. Its only downside is that it increases
sizeof(FFCodec), yet this can be more than offset lateron.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-04-05 19:53:27 +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
f067795c74 avcodec/textdec: Deduplicate AVClasses
The child_class_next API relied on different AVCodecs to use
different AVClasses; yet this API has been replaced by
child_class_iterate.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-07-08 20:10:17 +02:00
Andreas Rheinhardt
1c7e52f8ff avcodec: Mark ff_ass_subtitle_header based decoders as init-threadsafe
ff_ass_subtitle_header_full() just uses av_asprintf() and is therefore
thread-safe itself.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-05-02 05:14:42 +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
Clément Bœsch
30e7685360 lavc/options: add ass_ro_flush_noop to flags2 2016-02-26 21:53:32 +01:00
Clément Bœsch
2941282124 lavc: allow subtitle text format to be ASS without timing 2016-02-26 21:49:34 +01:00
Clément Bœsch
7a256133ff avcodec/textdec: use AV_OPT_TYPE_BOOL for keep_ass_markup option 2015-09-12 17:50:24 +02:00
Eejya Singh
6dc99fdf0e Added STL demuxer and decoder
Signed-off-by: Clément Bœsch <u@pkh.me>
2014-10-22 23:12:38 +02:00
Clément Bœsch
3d25869605 avcodec/ass: assume raw=0 in ff_ass_add_rect_bprint 2014-10-19 23:24:34 +02:00
Clément Bœsch
36c3a0167a avcodec/textdec: add some memory checks 2014-09-21 18:41:45 +02:00
Marton Balint
b96325e023 ass: move text_event_to_ass from textdec.c to ass.c and export it
Signed-off-by: Marton Balint <cus@passwd.hu>
2013-11-10 18:57:52 +01:00
Clément Bœsch
b46f19100b cosmetics: group remaining .name and .long_name.
See b2bed9325.
2013-10-04 13:33:20 +00:00
Clément Bœsch
87350d6b44 lavc/textdec: fix subviewer1 preproc check. 2012-12-31 13:06:29 +01:00
Clément Bœsch
faa94061dd Add SubViewer v1 subtitles demuxer and decoder. 2012-12-31 00:01:58 +01:00
Clément Bœsch
7b43402724 Add PJS subtitles demuxer and decoder. 2012-12-30 23:55:28 +01:00
Clément Bœsch
5c68aae908 Add VPlayer subtitles demuxer and decoder.
Note that the linebreaks text codec option (but not the feature) has
been removed; its main goal was to allow demuxers to configure the text
decoder (and not meant to be used by users), but the AVOption are not a
viable solution. This is solved differently in this commit.
2012-12-30 22:46:42 +01:00
Clément Bœsch
e807a2b648 lavc: add raw text subtitles decoder. 2012-10-18 22:51:44 +02:00