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Commit Graph

12 Commits

Author SHA1 Message Date
Andreas Rheinhardt
790f793844 avutil/common: Don't auto-include mem.h
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00
Zhao Zhili
89e9486bc3 avcodec/h264_mp4toannexb: Fix heap buffer overflow
Fixes: out of array write
Fixes: 64407/clusterfuzz-testcase-minimized-ffmpeg_BSF_H264_MP4TOANNEXB_fuzzer-4966763443650560

mp4toannexb_filter counts the number of bytes needed in the first
pass and allocate the memory, then do memcpy in the second pass.
Update sps/pps size in the loop makes the count invalid in the
case of SPS/PPS occur after IDR slice. This patch process in-band
SPS/PPS before the two pass loops.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2024-03-27 20:04:40 +08:00
Marton Balint
9eebeea4dd avcodec/bsf/pcm_rechunk: add some more supported PCM formats
Signed-off-by: Marton Balint <cus@passwd.hu>
2024-03-14 01:37:31 +01:00
Marton Balint
66e6272917 avcodec/bsf/pcm_rechunk: reorder supported codec list
Use lexical order.

Signed-off-by: Marton Balint <cus@passwd.hu>
2024-03-14 01:37:31 +01:00
Andrew Sayers
6096c244bb fix /// comments that should be ///<
Actual command: sed -i -e "s/\([;,] *\)<* *\/\/\/ *<* */\1\/\/\/< /" $( git grep -l "[;,] */// " )

Signed-off-by: Andrew Sayers <ffmpeg-devel@pileofstuff.org>
2024-03-04 17:38:57 +01:00
Andreas Rheinhardt
1e98cc4787 avcodec/bsf/mp3_header_decompress: Remove BSF
This BSF is supposed to be used in conjunction with mp3_header_compress,
which has been removed more than ten years ago in commit
c6080d8900. It mangled the headers
by removing the CRC field as well as fields that are supposed
to stay constant for the entirety of a stream (which are put into
extradata). This made these files unplayable; they need to be
decompressed with the BSF first (which does not happen automatically).
Even in this case the CRC does not get restored.

I am not aware that such compressed files exist at all; therefore
this commit removes the BSF completely.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-02 02:47:50 +01:00
Anton Khirnov
1e7d2007c3 all: use designated initializers for AVOption.unit
Makes it robust against adding fields before it, which will be useful in
following commits.

Majority of the patch generated by the following Coccinelle script:

@@
typedef AVOption;
identifier arr_name;
initializer list il;
initializer list[8] il1;
expression tail;
@@
AVOption arr_name[] = { il, { il1,
- tail
+ .unit = tail
}, ...  };

with some manual changes, as the script:
* has trouble with options defined inside macros
* sometimes does not handle options under an #else branch
* sometimes swallows whitespace
2024-02-14 14:53:41 +01:00
Nuo Mi
4f80441455 avcodec/hevc_mp4toannexb: more validations for nalu_len
For a corrupted stream, the value of nalu_len read from the extradata is not reliable.
We need to perform additional checks
2024-02-11 22:50:01 +08:00
Nuo Mi
f7a504a0df avcodec/vvc_mp4toannexb: more validations for nalu_len
For a corrupted stream, the value of nalu_len read from the extradata is not reliable.
We need to perform additional checks

Fixes: fuzzer timeout
Fixes: 65253/clusterfuzz-testcase-minimized-ffmpeg_BSF_VVC_MP4TOANNEXB_fuzzer-4972412487467008

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-02-11 22:49:51 +08:00
Anton Khirnov
aa3cfd4b5a lavc/bsf: add a showinfo filter
Analogous to the (a)showinfo lavfi filters, logs basic packet
information. Mainly useful for debugging/testing/development.
2024-02-02 15:41:54 +01:00
James Almer
fa469545ba avcodec: move leb reading functions to its own header
Signed-off-by: James Almer <jamrial@gmail.com>
2024-01-31 11:19:16 -03:00
Anton Khirnov
887a7817b6 lavc: move bitstream filters into bsf/ subdir 2024-01-29 18:40:14 +01:00