Once upon a time, 413abbe16465a7b49472ac110e42939e853e24a1
added versions of some put_no_rnd_pixels functions for use
in VP3 and Theora (with an explicit check so that they are
only used for VP3 and Theora). When this was moved to hpeldsp
(from dsputil) in 3ced55d51c2e65b37e50d500dff88bcd80e01b9c,
the check was replaced by a check for the bitexact flag
(and a CONFIG_VP3_DECODER compile-time check), so that
these functions were now used for other codecs as well.
Later commit 1dfc3cf89d0eb026af28be46294b85d79499ffb5
split off the "VP3-specific bits into a separate file",
yet these bits were not really VP3-specific bits at all
any more. (The error was repeated in commit
0a39c9ac0bfd7345fe676b4e2707d9cec3cbb553.) This commit
has not been reverted, because this would make future
changes from Libav (from where it originated) harder,
yet Libav is no more, so this commit effectively reverts
1dfc3cf89d0eb026af28be46294b85d79499ffb5.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Needed for ff_encode_add_cpb_side_data().
Fixes regression since 0231df505dc70ac435f2b437d1995ebabd70a66a.
Signed-off-by: James Almer <jamrial@gmail.com>
Makes the output of the native decoder consistent with external decoders like
libdav1d with fate-enhanced-flv-av1.
Reviewed-by: Zhao Zhili <quinkblack@foxmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This reverts commit eb88ccb92e05018b1060cf8126b30eeeff551d3b.
AVCodecContext fields are the proper place for a decoder to export such values.
This change is in preparation for the following commits.
Fixes: signed integer overflow: -2147483648 + -1048576 cannot be represented in type 'int'
Fixes: 59365/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-642654923954585
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: signed integer overflow: 2079654542 - -139267653 cannot be represented in type 'int'
Fixes: 60811/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5915858409750528
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
The floating point dsp code does not use MMX registers
since 2718a3be1f8867fd4f6cb3f452d6917838b1ed88.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This is the very last user of any lavc transform code.
This also *corrects* wmavoice decoding, as the previous DCT/DST
transforms were incorrect, bringing it closer to Microsoft's
own wmavoice decoder.
Add a full parser to libavcodec for AV_CODEC_ID_JPEGXL. It finds the
end of the stream in order to packetize the codec, and it looks at
the headers to set preliminary information like dimensions and pixel
format.
Note that much of this code is duplicated from avformat/jpegxl_probe.c,
but that code will be removed and call this instead in the next commit.
Signed-off-by: Leo Izen <leo.izen@gmail.com>
Before this commit, the decoder erroneously assumes that the AVFrame
passed to the receive_frame is the same one each time. Now it keeps an
internal AVFrame to write into, and copies it over when it's done.
Signed-off-by: Leo Izen <leo.izen@gmail.com>
Fixes an error that's caused by decoding a grayscale JXL image after an
RGB image is decoded, with the same decoder instance.
Signed-off-by: Leo Izen <leo.izen@gmail.com>
It is currently probably not possible for it to be negative as
the needed 2Mb input buf size is not achievable. But it is more
robust to check for it too.
If it would become negative than code like
s->samples[0][n] = s->samples[0][s->nb_samples + n];
would crash
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: shift exponent 1285 is too large for 32-bit type 'int'
Fixes: 60870/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVARC_fuzzer-5332050340347904
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: signed integer overflow: -1403461578 + -843974775 cannot be represented in type 'int'
Fixes: 60868/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG1VIDEO_fuzzer-4599793035378688
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
