ff_dovi_rpu_parse() and ff_dovi_rpu_generate() are a bit inconsistent in
that they expect different levels of encapsulation, due to the nature of
how this is handled in the context of different APIs. Clarify the status
quo. (And fix an incorrect reference to the RPU payload bytes as 'RBSP')
Zero is auto mode. From the doc of videotoolbox:
The default bit rate is zero, which indicates that the video
encoder should determine the size of compressed data.
Before the patch, the default bitrate is 200000 setting by
avcodec/options_table, which doesn't work for most of cases.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
Commit 4ef5e7d472 add qmin/qmax support to videotoolbox encoder.
The default value of (qmin, qmax) is (2, 31), which makes bitrate
control doesn't work as users' expectations.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This instruction, if aligned on a 4-byte boundary, defines a valid target
("landing pad") for an indirect call or jump. Since this instruction is a
HINT, it is safe to assemble even if not included in the target
instruction set architecture.
The necessary alignment is already provided by the `func` macro. However
this still lacks the ELF attribute to indicate that the zicfilp is supported
in simple mode. This is left for future work as the ELF specification is not
ratified as of yet.
This will also nonobviously require the assembler to support zicfilp,
insofar as the `tail` pseudo-instruction shall clobber T2 (instead of T1) as
its temporary register.
Currently the start of the byte range for each function is aligned to
4 bytes. But this can lead to situations whence the function is preceded
by a 2-byte C.NOP at the aligned 4-byte boundary. Then the first actual
instruction and the function symbol are only aligned on 2 bytes.
This forcefully disables compression for the alignment and the symbol,
thus ensuring that there is no padding before the function.
The B extension was finally ratified in May 2024, encompassing:
- Zba (addresses),
- Zbb (basics) and
- Zbs (single bits).
It does not include Zbc (base-2 polynomials).
configure checks that the assembler supports the B extension (or rather
its constituents) anyway. These macros were dodging sanity checks for
unsupported instructions and nothing else.
The RISC-V B bit manipulation extension was ratified only two months ago.
But it is strictly equivalent to the union of the zba, zbb and zbs
extensions which were defined almost 3 years earlier. Rather than require
new assembler, we can just match the extension name manually and translate
it into its constituent parts.
The search of the current DirectShow device list has been customized so
that audio devices are always found even if no video device is connected.
Signed-off-by: Jens Frederich <jens.frederich@vector.com>
Reviewed-by: Roger Pack <rogerdpack2@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Increase the tolerance from 10 ulp to 11 ulp. This fixes occasional
errors for some inputs; the errors could be reproduced on
aarch64/neon builds, with "checkasm --test=ac3dsp 3446175925".
Signed-off-by: Martin Storsjö <martin@martin.st>
Fixes an issue in 6.1 when reading a corrupted file with -xerror would
exit with success. This specific issue is not present in master, but
this should generally be a more robust behaviour.
Reported-by: Andrej Peterka
This needs to be double checked or a checking way of writing should be used
Fixes: out of array access
Fixes: 70007/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HDR_fuzzer-5478704150020096
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: out of array access
Fixes: 68941/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-5990952685600768
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: -35511773 * 256 cannot be represented in type 'int'
Fixes: 70406/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_OSQ_fuzzer-6545326804434944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: 2.96539e+09 is outside the range of representable values of type 'int'
Fixes: Assertion n>=0 && n<=32 failed at libavcodec/get_bits.h:423
Fixes: 62241/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_OSQ_fuzzer-4525761925873664
Fixes: 70406/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_OSQ_fuzzer-6545326804434944
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: index 9 out of bounds for type 'uint32_t [8][8]'
Fixes: 70363/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-6723855293415424.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: out of array read
Fixes: 70363/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-6723855293415424.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 70122/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5172200613675008
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: 70036/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PRORES_fuzzer-6298797647396864
Fixes: shift exponent 40 is too large for 32-bit type 'uint32_t' (aka 'unsigned int')
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(the exact issue is unreproducable but the use of uninitialized data is reproducable)
Should fix: signed integer overflow: -2147483648 - 127 cannot be represented in type 'int'
Should fix: 69881/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-4751301204836352
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
An alternative would be to leave the context unchanged on failure of hls_slice_header()
Fixes: out of array access
Fixes: NULL pointer dereference
Fixes: 69584/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5931086299856896
Fixes: 69724/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5104066422702080
Fixes: 70422/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5908731129298944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Rémi Denis-Courmont
Niklas Haas
Zhao Zhili
Araz Iusubov
Jens Frederich
Martin Storsjö
Anton Khirnov
Lynne
Michael Niedermayer