It (unfortunately) involves an allocation and can therefore fail.
Reviewed-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The functions to replace parameter sets are only called
after the respective parameter set has just been read or
has just been written; all of these functions check
that the id field is within the appropriate range.
So the checks in the replace-functions can be removed.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
It is no longer used.
Also rename ff_cbs_alloc_unit_content2 to ff_cbs_alloc_unit_content.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
cbs_jpeg was the last user of CBS that didn't use
CodedBitstreamUnitTypeDescriptors.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The code just creates new references without allocating
new buffers for the subobjects; therefore the actual data pointer
stays valid and need not be updated.
Also remove an assert that ensured that the calculation
for updating the pointer makes sense.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
nvenc does not appear to use these values as inputs for its built in RGB
to YUV conversion, but instead sets them on the output as-is.
Testing indicates the input is expected to be sRGB, with the output
ending up as limited range bt.470.
Up until now, there were four copies of
quantize_and_encode_band_cost_(ZERO|[SU]QUAD|[SU]PAIR|ESC|NONE|NOISE|STEREO)
(namely in aaccoder.o, aacenc_is.o, aacenc_ltp.o, aacenc_pred.o).
As 43b378a0d3 says, this is meant to
enable more optimizations.
Yet neither GCC nor Clang performed such optimizations: The functions
in the aforementioned files are not optimized according to
the specifics of the calls in the respective file. Therefore
duplicating them is a waste of space; this commit therefore stops doing
so. The remaining copy is placed into aaccoder.c (which is the only
place where the "round to zero" variant of quantize_and_encode_band()
is used, so that this can be completely internal to aaccoder.c).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Also constify the corresponding code in mpegvideo.c that handles
lowres.
(Unfortunately, not everything that is const could be constified:
ref_picture could be made const uint8_t* const* if C allowed the
safe automatic conversion from uint8_t**; and pix_op, qpix_op
could be made to point to const function pointers, but C's handling
of const in pointers to arrays is broken.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This is possible now that the HEVC DSP API treats them as const.
Also constify the AVFrames whose data is used as source in such
cases.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
__lasx_xvldx does not accept a pointer to const (in fact,
no function in lasxintrin.h does so), although it is not allowed
to modify the pointed-to buffer. Therefore this commit adds a wrapper
for it in order to constify the H264Chroma API in a later commit.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
__lsx_vldx does not accept a pointer to const (in fact,
no function in lsxintrin.h does so), although it is not allowed
to modify the pointed-to buffer. Therefore this commit adds a wrapper
for it in order to constify the HEVC DSP functions in a later commit.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Fix the build break when used make checkheaders
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
Now that we have a combination of capable hardware (new enough Intel)
and a mutually understood format ("AYUV"), we can declare support for
decoding 8bit 4:4:4 content via VAAPI.
This requires listing AYUV as a supported format, and then adding VAAPI
as a supported hwaccel for the relevant codecs (HEVC and VP9). I also
had to add VP9Profile1 to the set of supported profiles for VAAPI as it
was never relevant before.
To do so, store the pointer to the VLC table and not to the VLC.
This is possible, because all the VLCs of the same type use
the same number of bits.
Also use a const VLCElem*, because the target is static and must
therefore not be modified after its initialization.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The msmpeg4 decoders/encoders share a common set of prerequisites,
ergo it makes sense to use common subsystems for them. This also
allows to remove the CONFIG_MSMPEG4_DECODER/ENCODER ad-hoc defines
(which violated the CONFIG_ namespace).
Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
IntraX8 uses WMV2DSP directly, so it should have a direct dependency
on it. Also remove the indirect Makefile dependency of the VC-1 decoder
on wmv2dsp.o. Notice that since the addition of the MIPS WMV2DSP
implementation building only the VC-1 decoder would fail, because
no Makefile dependency VC1->wmv2dsp_init_mips.o has been added.
This is of course fixed by this commit.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This function is bitrotten: It uses different parameters
than the corresponding ASM functions which replaced it.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
ea41e6d637 forgot
the int->ptrdiff_t switch for the stride. Libav didn't
do it because Libav had already dropped support for Alpha
at that point.
Only compilation has been tested for this commit.
(It might be that the ASM-versions of me_cmp_func functions
need to be updated as well.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Fixes outputting silence on the second channel when decoding Parametic Stereo
HE-AAC.
Closes ticekt #3361.
Signed-off-by: James Almer <jamrial@gmail.com>
Fixes -Werror=format-security build failures when building with
disabled optimizations and (according to fate.ffmpeg.org also with
several other old GCC versions).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Modifying the main context from a slice thread is (usually)
a data race, so it must not happen. So only use a pointer to const
to access the main context.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Modifying the main context from a slice thread is (usually)
a data race, so it must not happen. So only use a pointer to const
to access the main context.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
