Currently it would essentially change the find_stream_info setting for
the file it was specified for and all following files, which is unusual
and somewhat unexpected behaviour for a per-file option and not even
documented to behave like this.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
VSETVLI xd, x0, ...' has rather nonobvious semantics:
- If xd is x0, then it preserves the current vector length.
- If xd is not x0, it sets the vector length to the supported maximum.
Also somewhat confusingly, while VMV.X.S always does its thing
regardless of the selected vector length, VMV.S.X does _nothing_ if the
selected vector length is zero.
So the current code breaks fails to initialise the accumulator if we
are unlucky to have a selected vector length of zero on entry. Fix it
by forcing the vector length to one.
The binkaudio decoders don't need mdct or sinewin at all;
and binkaudio_dct doesn't need rdft directly (but nevertheless
uses it indirectly via dct).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Add an AV_PIX_FMT_NE macro for RGB32FBE/RGB32FLE and also one for
RGBA32FBE/RGBA32FLE for packed 32-bit float RGB samples, and also
packed 32-bit float RGBA samples, respectively.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Leo Izen <leo.izen@gmail.com>
There is no MMX code for (add|put|put_signed)_pixels_clamped
since commit bfb28b5ce8, so use
declare_func instead of declare_func_emms() to also test that
we are not in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for diff_bytes since commit
230ea38de1, so use declare_func
instead of declare_func_emms() to also test that we are not
in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for add_int16 since commit
4b6ffc2880, so use declare_func
instead of declare_func_emms() to also test that we are not
in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for llviddsp after commit
fed07efcde, so use declare_func
instead of declare_func_emms() to also test that we are not
in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for pixblockdsp after commit
92b5800277, so use declare_func
instead of declare_func_emms() to also test that we are not
in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for audiodsp after commit
3d716d38ab, so use declare_func
instead of declare_func_emms() to also test that we are not
in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for blockdsp after commit
ee551a21dd, so use declare_func
instead of declare_func_emms() to also test that we are not
in MMX mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
There is no MMX code for vc1_inv_trans_8x8 or
vc1_unescape_buffer, so use declare_func instead of
declare_func_emms() to also test that we are not in MMX
mode after return.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Currently it is done in several different ways, which
might cause needless dependencies or in case of
tx_float_neon.S is incorrect.
Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Currently, it is accessed via a pointer (ff_celt_window)
exported from opustab.h which points inside a static array
(ff_celt_window_padded) in opustab.h. Instead export
ff_celt_window_padded directly and make opustab.h
a static const pointer pointing inside ff_celt_window_padded.
Also mark all the declarations in opustab.h as hidden,
so that the compiler knows that ff_celt_window has a fixed
offset from the code even when compiling position-independent
code.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
GCC 4.0 not only added a visibility attribute, but also
a pragma to set it for a whole region of code.*
This commit exposes this via macros.
*: See https://gcc.gnu.org/gcc-4.0/changes.html
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
HEVC spec has CRA frame which allows random access with open GOP, hence
it can achieve higher compression efficiency.
Removing the entry was suggested by Andreas
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
AV_PIX_FMT_P012, AV_PIX_FMT_Y212 and AV_PIX_FMT_XV36 are used in
FFmpeg and MFX_FOURCC_P016, MFX_FOURCC_Y216, and MFX_FOURCC_Y416 are used
in the SDK
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
P012, Y212 and XV36 are used for 12bit content in FFmpeg VAAPI, so
these formats should be used in FFmpeg QSV too, however the SDK only
declares support for P016, Y216 and Y416. So this commit fudged mappings
between AV_PIX_FMT_P012 and MFX_FOURCC_P016, AV_PIX_FMT_Y212 and
MFX_FOURCC_Y216, AV_PIX_FMT_XV36 and MFX_FOURCC_Y416.
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
XV30 is used for 10bit 4:4:4 content in FFmpeg VAAPI, so XV30 should be
used for 10bit 4:4:4 content in FFmpeg QSV too because QSV is based on
VAAPI on Linux. However the SDK only declares support for Y410 but does
nothing with the alpha in Y410, so this commit fudged a mapping between
AV_PIX_FMT_XV30 and MFX_FOURCC_Y410.
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
We can't get Shift from bit depth for some formats in the SDK. For
example, bit depth is 10, however Shift is 0 for Y410 (XV30 in FFmpeg).
In order to support these formats in the next commits, this patch
specified Shift for each format
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
Although the DSP function only uses single precision from RISC-V F, the
caller may leave double precision values in the spilled registers if the
calling convention supports double precision hardware floats. Then, we
need to save and restore FS registers as double precision.
Conversely, we do not need to save anything at all if an integer calling
convention is in use. However we can assume that single precision floats
are supported, since the Zve32f extension implies the F extension.
So for the sake of simplicity, we always save at least single precision
values.
In theory, we should even save quadruple precision values if the LP64Q
ABI is in use. I have yet to see a compiler that supports it though.
This adds a variant of the postfilter for use with 512-bit vectors.
Half a vector is enough to perform the scalar product. Normally a whole
vector would be used anyhow. Indeed fractional multiplers are no faster
than the unit multipler.
But in this particular function, a full vector makes up 16 samples,
which would be loaded at each iteration of the outer loop. The minimum
guaranteed CELT postfilter period is only 15. Accounting for the edges,
we can only safely preload up to 13 samples.
The fractional multipler is thus used to cap the selected vector length
to a safe value of 8 elements or 256 bits.
Likewise, we have the 1024-bit variant with the quarter multipler. In
theory, a 2048-bit one would be possible with the eigth multipler, but
that length is not even defined in the specifications as of yet, nor is
it supported by any emulator - forget actual hardware.
This adds a variant of the postfilter for use with 256-bit vectors.
As a single vector is then large enough to perform the scalar product,
the group multipler is reduced to just one at run-time.
The different vector type is passed via register. Unfortunately,
there is no VSETIVL instruction, so the constant vector size (5) also
needs to be passed via a register.
On most cases, the vector type (VTYPE) for the RISC-V Vector extension
is supplied as an immediate value, with either of the VSETVLI or
VSETIVLI instructions. There is however a third instruction VSETVL
which takes the vector type from a general purpose register. That is so
the type can be selected at run-time.
This introduces a macro to load a (valid) vector type into a register.
The syntax follows that of VSETVLI and VSETIVLI, with element size,
group multiplier, then tail and mask policies.
This is implemented for a vector size of 128-bit. Since the scalar
product in the inner loop covers 5 samples or 160 bits, we need a group
multipler of 2.
To avoid reconfiguring the vector type, the outer loop, which loads
multiple input samples sticks to the same multipler. Consequently, the
outer loop loads 8 samples per iteration. This is safe since the minimum
period of the CELT codec is 15 samples.
The same code would also work, albeit needlessly inefficiently with a
vector length of 256 bits. A proper implementation will follow instead.
Fixes the following integer overflows:
libavfilter/vf_rotate.c:273:13: runtime error: signed integer overflow: 92951468 + 2058533568 cannot be represented in type 'int'
libavfilter/vf_rotate.c:273:37: runtime error: signed integer overflow: 39684 * 54149 cannot be represented in type 'int'
libavfilter/vf_rotate.c:272:13: runtime error: signed integer overflow: 247587320 + 1900985032 cannot be represented in type 'int'
libavfilter/vf_rotate.c:272:37: runtime error: signed integer overflow: 42584 * 50430 cannot be represented in type 'int'
libavfilter/vf_rotate.c:272:50: runtime error: signed integer overflow: 65083 * 52912 cannot be represented in type 'int'
libavfilter/vf_rotate.c:273:50: runtime error: signed integer overflow: 65286 * 38044 cannot be represented in type 'int'
Fixes ticket #9799, different output with different compilers.
Since commit 4fc2531fff opus.c
contains only the celt stuff shared between decoder and encoder.
meanwhile, opus_celt.c is decoder-only. So the new names
reflect the actual content better than the current ones.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The PutBitContext has already been flushed a few lines above
and nothing has been written to it in the meantime.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
(There is a small issue that is now being treated differently:
The earlier code would record a position in a buffer that
is being written to via put_bits(), then write data,
then overwrite the byte at the position recorded earlier
and only then flush the PutBitContext. In case there was
no writeout in the meantime, said flush would overwrite
what one has just written. This never happened in my tests,
but maybe it can happen. In this case this commit fixes
this issue by flushing before overwriting the old data.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
ff_square_tab is always used with an offset; if this table
is marked as hidden, the compiler can infer that it and
therefore also ff_square_tab + 256 have a fixed offset
from the code. This allows to avoid performing "+ 256"
at runtime by baking it into the offset from the code to
the table.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Anton Khirnov
Marvin Scholz
Rémi Denis-Courmont
Andreas Rheinhardt
Leo Izen
Paul B Mahol
Reimar Döffinger
Haihao Xiang
Fei Wang
Carl Eugen Hoyos
Carl Eugen Hoyos