FFmpeg

Commit Graph

Author	SHA1	Message	Date
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>	3 years ago
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>	3 years ago
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>	3 years ago
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>	4 years ago
Carl Eugen Hoyos	1e34014010	lavc/bmp: Avoid a heap buffer overwrite for 1bpp input. Found by Mingi Cho, Seoyoung Kim, and Taekyoung Kwon of the Information Security Lab, Yonsei University.	6 years ago
Michael Niedermayer	63b8d4146d	avcodec/bmp: Use ff_set_dimensions() Fixes out of memory Fixes: 1282/clusterfuzz-testcase-minimized-5400131681648640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Clément Bœsch	549045254c	Fix all -Wformat warnings raised by DJGPP	8 years ago
Michael Niedermayer	0c42d0add3	avcodec/bmp: Fix runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself There is code checking height and width later, leaving an invalid value invalid is thus fine. Fixes: 635/clusterfuzz-testcase-6225161437052928 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	8 years ago
Diego Biurrun	67deba8a41	Use avpriv_report_missing_feature() where appropriate	8 years ago
Vittorio Giovara	3496cec433	msrle: Use AVFrame instead of AVPicture Callers always use a frame and cast it to AVPicture, change ff_msrle_decode() to accept an AVFrame directly instead. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Michael Niedermayer	aec340c533	avcodec/bmp: Analyze BGRA files alpha channel to choose pixel format BGRA BMPs commonly do contain an all transparent alpha channel Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Vittorio Giovara	def97856de	lavc: AV-prefix all codec capabilities Express bitfields more simply. Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Reimar Döffinger	d96090e7b6	Support BMP files that do not properly align lines. Quite a few programs missed that detail of the spec (including old versions of FFmpeg I believe) and when we would otherwise fail anyway it seems worth a try to use a simple byte-aligned stride instead. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Carl Eugen Hoyos	810294ce3d	Use os/2 palette even if it contains less than 256 entries. Fixes 11Bios13.bmp.	11 years ago
Carl Eugen Hoyos	8f6a04a279	Assume that old bmps do not contain transparency information. Fixes MK50TEMP.BMP that has its RGB channel bit masks on the actual image.	11 years ago
Michael Niedermayer	bd8b6ed96d	avcodec/bmp: fix integer overflow in checking header sizes Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	cc8163e1a3	avcodec: more correct printf specifiers	11 years ago
Diego Biurrun	b2bed9325d	cosmetics: Group .name and .long_name together in codec/format declarations	11 years ago
Piotr Bandurski	5f39992ed9	bmp: fix decoding of flipped rle4 Fixes ticket #2794 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Timothy Gu	a9bbf59be7	cosmetics: Fix "dont" "wont" "doesnt" typos Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Clément Bœsch	1ec94b0f06	lavc: factorize ff_{thread_,re,}get_buffer error messages. Coccinelle profile used: @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_get_buffer(ctx, f, flags)) < 0) + return r; @@ expression r, ctx, f, loglevel, str; @@ -if ((r = ff_reget_buffer(ctx, f)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_reget_buffer(ctx, f)) < 0) + return r; @@ expression r, ctx, f, loglevel, str, flags; @@ -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) { - av_log(ctx, loglevel, str); - return r; -} +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) + return r; ...along with some manual patches for the remaining ones.	12 years ago
Anton Khirnov	759001c534	lavc decoders: work with refcounted frames.	12 years ago
Michael Niedermayer	5270cb39ba	bmp: Fix warning X may be used uninitialized in this function Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	633f997479	bmp: check available space when reading palette Fixes out of array read Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	abcc235481	bmp: return meaningful error codes.	12 years ago
Anton Khirnov	3eab600752	bmp: cosmetics, reformat	12 years ago
Anton Khirnov	df9b956751	lavc: fix decode_frame() third parameter semantics for video decoders It's got_frame, not data size	12 years ago
Anton Khirnov	594d4d5df3	lavc: add a wrapper for AVCodecContext.get_buffer(). It will be useful in the upcoming transition to refcounted AVFrames.	12 years ago
Michael Niedermayer	2fed05f53a	avoid more "0xFF << 24" as it is considered a integer overflow in C99 missed these in my previous search and replace Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	313b40efbd	bmp: unbreak non BMP_RGB compression for v4 and v5 Fixes CID733728 & CID733729. Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Anton Khirnov	8b78c2969a	bmpdec: only initialize palette for pal8. Gray8 is not considered to be paletted, so this would cause an invalid write. Fixes bug 367. CC: libav-stable@libav.org	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Diego Biurrun	0177b7d23a	Improve descriptiveness of a number of codec and container long names	12 years ago
Ronald Bultje	992f71e95d	msrle: convert MS RLE decoding function to bytestream2. Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>	13 years ago
Martin Storsjö	00c3b67b8a	cosmetics: Align codec declarations Also break some long lines, remove codec function placeholder comments and add spaces in sample/pixel format lists. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Diego Biurrun	562b6c744a	Remove unnecessary AVFrame pointer casts.	13 years ago
Paul B Mahol	bd36ec55be	bmpdec: proper check for alpha Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	7c4b397508	bmpdec: support various bitfields for 32 bit depth Fixes #740 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	a6839c4e60	bmpdec: support for rgb444 with bitfields compression Do not display garbage for invalid/unsupported bitfields values.	13 years ago
Paul B Mahol	353a2d2164	bmpdec: support for rgb444 with bitfields compression Do not display garbage for invalid/unsupported bitfields values. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Carl Eugen Hoyos	3a15051aba	Always assume the bmp palette as being opaque.	13 years ago
Carl Eugen Hoyos	6f2054c589	Fix linesize for bmp with bitdepth < 8. Fixes ticket #751.	13 years ago
Carl Eugen Hoyos	9608e3a182	Support decoding 56 byte BMP Bitmap Information Header. Fixes ticket #719.	13 years ago
Carl Eugen Hoyos	1e92d58e44	bmp: fix some 1bit samples. <= 8bpp BMP images always have palette. Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
ami_stuff	28a11a67d2	BMP: Support BMP OS/2 v2 with RLE compression. Fixes ticket #699. Patch also provided by Peter Ross.	13 years ago
Carl Eugen Hoyos	8b08f81949	Support transparency in 32bit bmp files.	13 years ago
Carl Eugen Hoyos	0e609d7418	Fix some 1bit bmp samples, they are palletised. Fixes ticket #632.	13 years ago
Anton Khirnov	ec6402b7c5	lavc: use designated initialisers for all codecs. It's more readable and less prone to breakage.	13 years ago
Stefano Sabatini	ce5e49b0c2	replace deprecated FF__TYPE symbols with AV_PICTURE_TYPE_	14 years ago

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113 Commits (1837ae9d5f3eb8483c76dc708e68e466f9021cac)