Commit graph

48060 commits

Author SHA1 Message Date
Rémi Denis-Courmont
b98349b205 riscv: test for assembler support
This should fix the build on LLVM 16 and earlier, at the cost of turning
all non-RVV optimisations off.

Signed-off-by: Brad Smith <brad@comstyle.com>
2024-12-08 02:25:43 -05:00
Gyan Doshi
769c36b013 avcodec/libx265: unbreak build for X265_BUILD >= 213
Earlier, x265 made an API change to support alpha and
other multiple layer pictures. We added guards to accommodate
that in 1f801dfdb5

They have now reverted that API change in
78e5b703b1

Updated our wrapper guards to unbreak build again.
2024-10-06 13:30:34 +02:00
Anton Khirnov
35f906521e lavc/hevcdec: set per-CTB filter parameters for WPP
Fixes #10887

(cherry picked from commit 536bb98888)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit f705bc5b73)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2024-09-13 12:23:04 +02:00
Anton Khirnov
c22db2bcf2 lavc/hevc: check framerate num/den to be strictly positive
Rather than just != 0. These values are read as uint32 and can become
negative when cast to int.

(cherry picked from commit eec1a7a6bb)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 9cadadb9a1)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2024-09-12 11:14:55 +02:00
Gyan Doshi
6387156008 lavc/libx265: unbreak build for X265_BUILD >= 210
x265 added support for alpha starting with build 210.
While doing so, x265_encoder_encode() changed its fifth arg to
an array of pointers to x265_picture. This broke building lavc/libx265.c

This patch simply unbreaks the build and maintains existing single-layer
non-alpha encoding support.

Fixes #11130
2024-09-04 13:55:28 +02:00
Ross Burton
3096967c93 libavcodec/arm/mlpdsp_armv5te: fix label format to work with binutils 2.43
binutils 2.43 has stricter validation for labels[1] and results in errors
when building ffmpeg for armv5:

src/libavcodec/arm/mlpdsp_armv5te.S:232: Error: junk at end of line, first unrecognized character is `0'

Remove the leading zero in the "01" label to resolve this error.

[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=226749d5a6ff0d5c607d6428d6c81e1e7e7a994b

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 654bd47716)
2024-08-16 13:47:11 +03:00
Josh Allmann
3610a803e7 avcodec/nvenc: fix segfault in intra-only mode
In intra-only mode, frameIntervalP is 0, which means the frame
data array is smaller than the number of surfaces.

Together with using the wrong size on deallocation of the
frame_data_array, this lead to a crash.

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
(cherry picked from commit c9151ea507)
2024-07-01 20:07:27 +02:00
llyyr
c185e11321
lavc/vp9: reset segmentation fields when segmentation isn't enabled
Fields under the segmentation switch are never reset on a new frame, and
retain the value from the previous frame. This bugs out a bunch of
hwaccel drivers when segmentation is disabled but update_map isn't
reset because they don't ignore values behind switches. This commit also
resets the temporal field, though it may not be required.

We also do this for vp8 [1] so this commit is just mirroring the vp8
logic.

This fixes an issue with certain samples [2] that causes blocky
artifacts with vaapi, d3d11va and cuda (and possibly others).
Mesa worked around [3] this by ignoring these fields if
segmentation.enabled is 0, but d3d11va still displays blocky artifacts.

[1] 2e877090f9:/libavcodec/vp8.c#l797
[2] https://github.com/mpv-player/mpv/issues/13533
[3] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27816

Signed-off-by: llyyr <llyyr.public@gmail.com>
2024-05-27 12:38:56 +02:00
Andreas Rheinhardt
90a59f9e48 avcodec/x86/vp3dsp_init: Set correct function pointer, fix crash
Regression since fd17218558;
triggered by vp4/KTkvw8dg1J8.avi in the FATE suite, but not
when running fate as this code is not used when the bitexact
flag is set.

Bisecting done by ami_stuff, patch from user Mika Fischer
in ticket #10027 (which this commit fixes).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
(cherry picked from commit c3ca90a92e)
2024-05-22 17:10:17 +02:00
Michael Niedermayer
df95c2630d
avcodec/exr: Dont use 64bits to hold 6bits
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e3984de6ff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:10:00 +02:00
Michael Niedermayer
853e15fb85
avcodec/exr: Check for remaining bits in huf_unpack_enc_table()
Fixes: Timeout
Fixes: 67645/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-6308760977997824

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 589fa8a027)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:09:05 +02:00
Michael Niedermayer
b9a3065c66
avcodec/wavarc: Avoid signed integer overflow in sample
Fixes: signed integer overflow: -2147483648 + -25122315 cannot be represented in type 'int'
Fixes: 62285/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-6199806972198912

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6009dd07bd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:20 +02:00
Michael Niedermayer
a004db8f4e
avcodec/truemotion1: Height not being a multiple of 4 is unsupported
mb_change_bits is given space based on height >> 2, while more data is read

Fixes: out of array access
Fixes: 62285/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION1_fuzzer-5201925062590464.fuzz

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ebdcf98499)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:20 +02:00
Michael Niedermayer
055265fed1
avcodec/hcadec: do not set hfr_group_count to invalid values
Fixes: 62285/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HCA_fuzzer-6247136417087488
Fixes: out of array write

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit addb85ea39)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:19 +02:00
Michael Niedermayer
0bd8112921
avcodec/proresenc_kostya: Remove bug similarity text
According to kostya, it is not based on Wassermans encoder

CC: Kostya Shishkov <kostya.shishkov@gmail.com>
CC: Anatoliy Wasserman <anatoliy.wasserman@yandex.ru>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e0e30e07a1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:16 +02:00
Michael Niedermayer
e0339c57e6
avcodec/vorbisdec: Check remaining data in vorbis_residue_decode_internal()
Fixes: timeout
Fixes: 66326/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-6295291863040000

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit dc89cf804a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:16 +02:00
Michael Niedermayer
eea625e217
avcodec/8bps: Consider width in the minimal size check
Fixes: Timeout
Fixes: 64479/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EIGHTBPS_fuzzer-5434435386081280

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5db09574df)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:15 +02:00
Michael Niedermayer
8e72472dcc
avcodec/indeo3: Round dimensions up in allocate_frame_buffers()
Fixes: Ticket6581

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3be80ce299)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:14 +02:00
Michael Niedermayer
4565b4a507
avcodec/mpegvideo_enc: Use ptrdiff_t for stride
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e063c1d079)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:13 +02:00
Michael Niedermayer
dce4cf6871
avcodec/mpegvideo_enc: Dont copy beyond the image
Fixes: out of array access
Fixes: tickets/10754/poc17ffmpeg

Discovered by Zeng Yunxiang.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a066b8a809)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:12 +02:00
Michael Niedermayer
bda83cba9d
avcodec/jpeglsdec: Check Jpeg-LS LSE
Fixes: signed integer overflow: 2147478526 + 33924 cannot be represented in type 'int'
Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 64243/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEGLS_fuzzer-5195717848989696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c72a20f01a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:07 +02:00
Michael Niedermayer
b751dfc151
avcodec/av1dec: Fix resolving zero divisor
Fixes: Out of array read
Fixes: global-buffer-overflow-AV1

Found-by: "Leonelli, Matteo" <matteo.leonelli@cispa.de>
Tested-by: "Wang, Fei W" <fei.w.wang@intel.com>
Reviewed-by: "Wang, Fei W" <fei.w.wang@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 22daf2148f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 02:04:06 +02:00
Timo Rothenpieler
a39e922fb7 avcodec/nvdec: reset bitstream_len/nb_slices when resetting bitstream pointer 2024-03-30 00:18:39 +01:00
Jan Ekström
511b844423 avcodec/av1dec: fix matrix coefficients exposed by codec context
`colorspace` in avcodec terms means `matrix coefficients`.

Reviewed-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 37936b09ce)
2024-02-20 21:13:05 +02:00
James Almer
178575bdc1 avcodec/nvdec: don't free NVDECContext->bitstream
Ensure all hwaccels that allocate a buffer use NVDECContext->bitstream_internal
instead. Otherwise, if FFHWAccel->end_frame() isn't called before
FFHWAccel->uninit(), an attempt to free a stale pointer to memory not owned by
the hwaccel could take place.

Reviewed-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: James Almer <jamrial@gmail.com>
2024-02-07 11:35:58 -03:00
Anton Khirnov
133069b434 lavc/dvdsubenc: only check canvas size when it is actually set
Fixes #10650

(cherry picked from commit 5230257ea1)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2023-12-02 11:46:10 +01:00
Michael Niedermayer
1f61aad00d
avcodec/4xm: Check for cfrm exhaustion
Fixes: index -1 out of bounds for type 'CFrameBuffer [100]'
Fixes: 63877/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FOURXM_fuzzer-5854263397711872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit bb0a684d93)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-11-10 00:25:37 +01:00
Michael Niedermayer
66caaeec13
avcodec/dovi_rpu: Use 64 bit in get_us/se_coeff()
Fixes: shift exponent 32 is too large for 32-bit type 'int'
Fixes: 63151/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5067531154751488

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2817efbba3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-11-03 23:33:45 +01:00
Michael Niedermayer
e770922e30
avcodec/jpeg2000dec: Check image offset
Fixes: left shift of negative value -538967841
Fixes: 62447/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-6427134337613824

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Tomas Härdin <git@haerdin.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 88453250db)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
b902f5113e
avcodec/h2645_parse: Avoid EAGAIN
EAGAIN causes an assertion failure when it is returned from the decoder

Fixes: Assertion consumed != (-(11)) failed at libavcodec/decode.c:462
Fixes: assertion_IOT_instruction_decode_c_462/poc

Found-by: Hardik Shah of Vehere (Dawn Treaders team)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5ddab49d48)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
1079565e8e
avcodec/xvididct: Make c* unsigned to avoid undefined overflows
Fixes: signed integer overflow: 1496950099 + 728014168 cannot be represented in type 'int'
Fixes: 62667/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MJPEGB_fuzzer-6511785170305024

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f7e5537dc1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
6d25672afa
avcodec/bonk: Fix undefined overflow in predictor_calc_error()
Fixes: signed integer overflow: -2146469728 - 1488954 cannot be represented in type 'int'
Fixes: 62490/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-5612782399389696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cd66606a8f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
55769812f7
avcodec/h264_parser: saturate dts a bit
Fixes: signed integer overflow: 0 - -9223372036854775808 cannot be represented in type 'long'
Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6112289464123392

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7fedbc7606)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
f630725cb0
avcodec/escape124: Do not return random numbers
Fixes: out of array access
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ESCAPE124_fuzzer-6035022714634240
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ESCAPE124_fuzzer-6422176201572352

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fe6d46490f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
303afea1a8
avcodec/apedec: Fix an integer overflow in predictor_update_filter()
Fixes: signed integer overflow: -2147483506 + -801380 cannot be represented in type 'int'
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-6578985923117056

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 515c0247a3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
3b822405cd
avcodec/wavarc: Allocate AV_INPUT_BUFFER_PADDING_SIZE
Fixes: overread
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5963163952349184
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-6048030137909248

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit dbcf285abd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
0ae86db6ba
avcodec/wavarc: Fix integer overflwo in do_stereo()
Fixes: signed integer overflow: 148676193 - -2006512262 cannot be represented in type 'int'
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5963163952349184

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f3c986200d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
f16d72dfeb
avcodec/aacdec_template: Better avoidance of signed integer overflow in imdct_and_windowing_eld()
Fixes: 62171/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-5644657180409856
Fixes: signed integer overflow: 2 * 1079352273 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>
(cherry picked from commit 7f4fed5216)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 20:15:29 +02:00
Michael Niedermayer
f23f0ba87c
avcodec/flacdec: Fix integer overflow in "33bit" DECODER_SUBFRAME_FIXED_WIDE()
Fixes: signed integer overflow: 4 * 2307917133220067266 cannot be represented in type 'long'
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FLAC_fuzzer-6307690022043648

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 112a077d06)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:07 +02:00
Michael Niedermayer
8c5b391c63
avcodec/flacdec: Fix overflow in "33bit" decorrelate
Fixes: signed integer overflow: 538976288 - -9223372036854775808 cannot be represented in type 'long'
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FLAC_fuzzer-6275845531238400

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 35e6960a6b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:07 +02:00
Michael Niedermayer
342121cd35
avcodec/lcldec: Make PNG filter addressing match the code afterwards
Also update check accordingly

Fixes: tickets/10237/mszh_306_306_yuv422_nocompress.avi
Fixes: tickets/10237/mszh_306_306_yuv411_nocompress.avi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d11b8bd0c6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:06 +02:00
Michael Niedermayer
ea918615a1
avcodec/xvididct: Fix integer overflow in idct_row()
Fixes: signed integer overflow: 1871429831 + 343006811 cannot be represented in type 'int'
Fixes: 61784/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AIC_fuzzer-5372151001120768

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b12444fe72)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:04 +02:00
Michael Niedermayer
4917892af7
avcodec/celp_math: avoid overflow in shift
by making gain unsigned we have 1 bit more available
alternatively we can clip twice as in the g729 reference

Fixes: left shift of 23404 by 17 places cannot be represented in type 'int'
Fixes: 61728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ACELP_KELVIN_fuzzer-6280412547383296

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6580a7b2b2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:04 +02:00
Michael Niedermayer
38bc713c6d
avcodec/bonk: Fix integer overflow in predictor_calc_error()
Fixes: signed integer overflow: -2147483300 - 12285 cannot be represented in type 'int'
Fixes: 59462/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BONK_fuzzer-5714298807386112

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2b25a5168e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:03 +02:00
Michael Niedermayer
ebc4d0a310
avcodec/jpeg2000dec: jpeg2000 has its own lowres option
jpeg2000 overrides the global lowres variable with a lowres field called reduction_factor
ffmpeg -lowres X causes the reduction_factor to be set
ffplay -lowres X causes both lowres and the reduction_factor to be set
ossfuss sets only lowres

only the ffmpeg variant works. This patch tries to make the other 2 work.

Alternative we could just error out if things are inconsistent.
More complex restructuring should be limited to the master branch
to keep this reasonably easy to backport

Fixes: out of array access
Fixes: 59672/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c012d1f2bb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:02 +02:00
Michael Niedermayer
47bd650d68
avcodec/huffyuvdec: avoid undefined behavior with get_vlc2() failure
Fixes: left shift of negative value -1
Fixes: 59889/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HUFFYUV_fuzzer-5472742275940352

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 90647a9249)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:02 +02:00
Michael Niedermayer
58c8e61703
avcodec/cscd: Fix "CamStudio Lossless Codec 1.0" gzip files
Fixes: tickets/10241/cscd_1_0_306_306_gzip.avi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab7d38f970)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:02 +02:00
Michael Niedermayer
e1a05fdb58
avcodec/cscd: Check for CamStudio Lossless Codec 1.0 behavior in end check of LZO files
Alternatively the check could be simply made more tolerant
Fixes: Ticket10227

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d2a0464fc2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:01 +02:00
Michael Niedermayer
24be4134fd
avcodec/mpeg4videodec: consider lowres in dest_pcm[]
Fixes: out of array access
Fixes: 59999/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5767982157266944

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d48476183f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:01 +02:00
Michael Niedermayer
45d113af3a
avcodec/hevcdec: Fix undefined memcpy()
There is likely a better way to fix this, this is mainly to show the problem

Fixes: MC within same frame resulting in overlapping memcpy()
Fixes: 60189/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-4992746590175232
Fixes: 61753/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5022150806077440
Fixes: 58062/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-4717458841010176

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 94bd1796ff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2023-10-28 19:05:01 +02:00