Commit graph

11291 commits

Author SHA1 Message Date
Marton Balint
9999b9a8b2 avfilter/af_amerge: fix possible crash with custom layouts
The check if a native layout can be created from the sources was incomplete and
casued a crash with custom layouts if the layout contained a native channel
multiple times, as in this example command line:

ffmpeg -lavfi "sine[a0];sine,pan=FL+FL[a1];[a0][a1]amerge[aout]" -map "[aout]" -t 1 -f framecrc -

Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit e8b10a9b09)
2025-12-07 21:17:07 +01:00
Kacper Michajłow
240c1b0eb7 avfilter/stack_internal: fix checkheaders test
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
(cherry picked from commit 1a1377c53d)
2025-12-03 20:27:24 +01:00
Timo Rothenpieler
735acddb8a all: apply linter fixes 2025-12-03 20:27:24 +01:00
Zhao Zhili
05e10ce5ac
avfilter/vf_drawtext: fix call GET_UTF8 with invalid argument
For GET_UTF8(val, GET_BYTE, ERROR), val has type of uint32_t,
GET_BYTE must return an unsigned integer, otherwise signed
extension happened due to val= (GET_BYTE), and GET_UTF8 went to
the error path.

This bug incidentally cancelled the bug where hb_buffer_add_utf8
was being called with incorrect argument, allowing drawtext to
function correctly on x86 and macOS ARM, which defined char as
signed. However, on Linux and Android ARM environments, because
char is unsigned by default, GET_UTF8 now returns the correct
return, which unexpectedly revealed issue #20906.

(cherry picked from commit a5cc0e5c9e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-21 20:57:02 +01:00
Zhao Zhili
cf6842fd8a
avfilter/vf_drawtext: fix incorrect text length
From the doc of HarfBuzz, what hb_buffer_add_utf8 needs is the
number of bytes, not Unicode character:
hb_buffer_add_utf8(buf, text, strlen(text), 0, strlen(text));

Fix issue #20906.

(cherry picked from commit 9bc3c572ea)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-21 20:57:02 +01:00
Michael Niedermayer
7327a9ab19
avfilter/vf_drawtext: Account for bbox text seperator
Fixes: out of array access
no test case

Found-by: Joshua Rogers <joshua@joshua.hu> with ZeroPath
Reviewed-by: Joshua Rogers <joshua@joshua.hu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ad956ff076)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-11-21 20:57:02 +01:00
Jiasheng Jiang
6250ed77a6
libavfilter/dnn/dnn_backend_tf: Remove redundant av_freep() to avoid double free
Remove redundant av_freep() to avoid double free since task will be freed in dnn_free_model_tf() after the success of ff_queue_push_back().

Fixes: af052f9066 ("lavfi/dnn: fix mem leak in TF backend error handle")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
(cherry picked from commit b8d5f65b9e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-08-14 02:55:52 +02:00
Muhammad Faiz
8577a6b2fe
avfilter/avf_showcqt: fix unbounded index when copying to fft_data
When timeclamp and/or fps are low, j can be negative.

Fix Ticket11640

(cherry picked from commit 35ea458354)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-08-14 02:55:49 +02:00
Jiasheng Jiang
00b5af29a4
libavfilter/af_firequalizer: Add check for av_malloc_array()
Add check for the return value of av_malloc_array() to avoid potential NULL pointer dereference.

Fixes: d3be186ed1 ("avfilter/firequalizer: add dumpfile and dumpscale option")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a25462482c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-08-14 02:55:46 +02:00
James Almer
e2b20632b8
avfilter/buffersrc: check for valid sample rate
A sample rate <= 0 is invalid.

Fixes an assert in ffmpeg_enc.c that assumed a valid sample rate would be set.
Fixes ticket #11385.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 1446e37d3d)
2025-06-11 12:16:11 +02:00
Paul B Mahol
efedc1d1b6
avfilter/asrc_afirsrc: fix by one smaller allocation of buffer
(cherry picked from commit 4adb93dff0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:16:10 +02:00
Cosmin Stejerean
c104119c6b
avfilter/bwdif: account for chroma sub-sampling in min size calculation
The current logic for detecting frames that are too small for the
algorithm does not account for chroma sub-sampling, and so a sample
where the luma plane is large enough, but the chroma planes are not
will not be rejected. In that event, a heap overflow will occur.

This change adjusts the logic to consider the chroma planes and makes
the change to all three bwdif implementations.

Fixes #10688

Signed-off-by: Cosmin Stejerean <cosmin@cosmin.at>
Reviewed-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Philip Langdale <philipl@overt.org>
(cherry picked from commit 737ede405b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:16:10 +02:00
Paul B Mahol
dcf34f13f5
avfilter/af_afwtdn: fix crash with EOF handling
(cherry picked from commit b1942734c7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:16:09 +02:00
Paul B Mahol
a4b6e37ad5
avfilter/vf_colorcorrect: fix memory leaks
(cherry picked from commit 5f87a68cf7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:16:09 +02:00
Zhao Zhili
a279a8620e
avfilter/vf_codecview: fix heap buffer overflow
And improve the performance by a little bit.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
(cherry picked from commit 99debe5f82)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:16:09 +02:00
Michael Niedermayer
e5036fe010
avfilter/vf_v360: Fix NULL pointer use
Fixes: applying zero offset to null pointer
partly Fixes: verysmall.flv

Found-by: Elias Myllymäki <elias.myllymaki04p@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 66e9888bf4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:16:02 +02:00
Michael Niedermayer
43f64690ad
avfilter/af_pan: Fix sscanf() use
Fixes: Memory Data Leak

Found-by: Simcha Kosman <simcha.kosman@cyberark.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b5b6391d64)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:59 +02:00
Michael Niedermayer
a89a8548b1
avfilter/vf_grayworld: Use the correct pointer for av_log()
Fixes: crash

Found-by: Elias Myllymäki <elias.myllymaki04p@gmail.com>
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9ffa127aa6)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:59 +02:00
Michael Niedermayer
01010e2ca7
avfilter/vf_addroi: Add missing NULL termination to addroi_var_names[]()
Fixes: out of array read

Found-by: Elias Myllymäki <elias.myllymaki04p@gmail.com>
Reviewed-by: Alexander Strasser <eclipse7@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b72de49295)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:59 +02:00
Michael Niedermayer
0a80dadb96
avfilter/vf_xfade: Compute w2, h2 with float
Fixes: CID1458148 Result is not floating-point
Fixes: CID1458149 Result is not floating-point
Fixes: CID1458150 Result is not floating-point
Fixes: CID1458151 Result is not floating-point
Fixes: CID1458152 Result is not floating-point
Fixes: CID1458154 Result is not floating-point
Fixes: CID1458155 Result is not floating-point
Fixes: CID1458156 Result is not floating-point

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b98125e5a5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:30 +02:00
Michael Niedermayer
f316f0309a
avfilter/vf_v360: Assert that vf was initialized
Maybe helps: CID1504571 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f802d65de0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:29 +02:00
Michael Niedermayer
b4cd76b483
avfilter/vf_tonemap_opencl: Dereference after NULL check
Fixes: CID1437472 Dereference before null check

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e5c0f56ca0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:29 +02:00
Michael Niedermayer
3581e7ce1d
avfilter/af_surround: Check output format
Fixes: CID1516994 Out-of-bounds access
Fixes: CID1516996 Out-of-bounds access
Fixes: CID1516999 Out-of-bounds access

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 22ee55a1da)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:28 +02:00
Michael Niedermayer
bd002dfc3d
avfilter/vf_xfade_opencl: Check ff_inlink_consume_frame() for failure
Fixes: CID1458127 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 43b62b7e0c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2025-06-11 12:15:28 +02:00
Paul B Mahol
b8fe1bc38e avfilter/avfiltergraph: fix regression in picking channel layout
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 1b3f4842c1)
2025-05-22 19:41:51 -03:00
Marton Balint
a6a07eebdf avfilter/f_loop: fix aloop activate logic
The logic did not follow the documented behaviour and that caused skipping of
some audio in the loop and in the leftover buffer.

Example command line which should produce a smooth sine wave for the whole
duration of the output:

ffmpeg -f lavfi -i "sine=r=48000:f=480:d=4" -af "aloop=loop=4:start=48000:size=48000" out.wav

Fixes ticket #11283.

Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit fe18ed3f2a)
2024-11-17 22:33:05 +01:00
Marton Balint
2b6be6ba90 avfilter/f_loop: fix length of aloop leftover buffer
If the audio loop stops inside an audio frame, the leftover buffer contains the
end of the frame, which is not looped. The length supposed to be the part which
was not written to the loop buffer, so we need to drain exactly that number of
bytes from the leftover buffer.

Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit b33a594160)
2024-11-17 22:33:02 +01:00
Michael Niedermayer
498bfba547
avfilter/vf_xfade: Check ff_inlink_consume_frame() for failure
Fixes: CID1458043 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 73ca4e75eb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:58 +02:00
Michael Niedermayer
90b99445fb
avfilter/vf_scale: Check ff_scale_adjust_dimensions() for failure
Helps: CID1513722 Operands don't affect result

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2a8fb3c2cc)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:52 +02:00
Michael Niedermayer
38c029131a
avfilter/scale_eval: Use 64bit, check values in ff_scale_adjust_dimensions()
Found by reviewing CID1513722 Operands don't affect result

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ad9df8bcfe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:52 +02:00
Michael Niedermayer
05ef164255
avfilter/vf_lut3d: Check av_scanf()
Fixes: CID1604398 Unchecked return value
Fixes: CID1604542 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ace2e25720)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:51 +02:00
Michael Niedermayer
d10954e620
avfilter/vf_elbg: Use unsigned for shifting into the top bit
Fixes: part of CID1355110 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2af95b9214)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:51 +02:00
Michael Niedermayer
f3a360a00d
avfilter/vf_deshake_opencl: Ensure that the first iteration initializes the best variables
Fixes: CID1452759 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9385847af4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:51 +02:00
Michael Niedermayer
0b5ef2198b
avfilter/vf_convolution_opencl: Assert that the filter name is one of the filters
Helps with: CID1439572 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 19a5a8997c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:46 +02:00
Michael Niedermayer
02694abdaf
avfilter/vf_bm3d: Dont round MSE2SSE to an integer
Fixes: CID1439581 Result is not floating-point

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ec18ec9fc1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:46 +02:00
Michael Niedermayer
f504e2e9f5
avfilter/af_aderivative: Free out on error
Fixes: CID1197065 Resource leak

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 382e9e79f3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:33 +02:00
Michael Niedermayer
ac8ac10e33
avfilter/af_afir: Assert format
Maybe helps: CID1516805 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit a5c815f937)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:32 +02:00
Michael Niedermayer
40b801870d
avfilter/af_afftdn: Assert format
Maybe helps: CID1515514 Uninitialized scalar variable
Maybe helps: CID1515517 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8f9a6c4ea8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:32 +02:00
Michael Niedermayer
c773ce8435
avfilter/af_pan: check nb_output_channels before use
Fixes: CID1500281 Out-of-bounds write
Fixes: CID1500331 Out-of-bounds write

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5fe8bf4aa5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:31 +02:00
Michael Niedermayer
bdd1a93e4b
avfilter/af_mcompand: compute half frequency in double
Fixes: CID1422217 Result is not floating-point

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 2d0d502ff1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:31 +02:00
Michael Niedermayer
4d7d183ccb
avfilter/af_channelsplit: Assert that av_channel_layout_channel_from_index() succeeds
Maybe Helps: CID1503077 Bad bit shift operation

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit cef720ab42)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:30 +02:00
Michael Niedermayer
bea691ffc1
avfilter/af_aresample: Cleanup on av_channel_layout_copy() failure
Fixes: CID1503078 Resource leak

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7a0ea15c7a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:30 +02:00
Michael Niedermayer
3666a36472
avfilter/vf_avgblur: Check plane instead of AVFrame
Fixes: CID1551694 Use after free (false positive based on assuming that out == in and one is freed and one used)

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c296d4fdec)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:29 +02:00
Michael Niedermayer
371c42dd81
avfilter/drawutils: Fix depthb computation
Fixes: CID1496940 Logically dead code

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 34f821e448)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:29 +02:00
Michael Niedermayer
96a63346ee
avfilter/avf_showcwt: Check av_parse_video_rate() for failure
Fixes: CID1539147 Unused value

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit aab0c344c5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:29 +02:00
Michael Niedermayer
7e634b9731
avfilter/vf_rotate: Check ff_draw_init2() return value
Fixes: NULL pointer dereference
Fixes: 3_343

Found-by: De3mond
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9c9f095e30)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-07-24 16:52:20 +02:00
Michael Niedermayer
d92ef4f846
avfilter/vf_thumbnail_cuda: Set ret before checking it
Fixes: CID1418336 Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 02301017d2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-05-25 00:31:07 +02:00
Michael Niedermayer
057b8d65e3
avfilter/signature_lookup: Dont copy uninitialized stuff around
Fixes: CID1403238 Uninitialized pointer read
Fixes: CID1403239 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e7174e66ac)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-05-25 00:31:07 +02:00
Michael Niedermayer
572985605f
avfilter/signature_lookup: Fix 2 differences to the refernce SW
Fixes: CID1403227 Division or modulo by float zero

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 25cb66369e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-05-25 00:31:06 +02:00
Paul B Mahol
1606aab99b avfilter/avfilter: fix OOM case for default activate
Fixes OOM when caller keeps adding frames into filtergraph
that reached EOF by other means, for example EOF is signalled
by other filter in filtergraph or by buffersink.

(cherry picked from commit d9e41ead82)
2024-05-01 15:32:40 -03:00