swscale internals don't distinguish between 16-bit and higher bit depth
output formats internally when it comes to the choice of intermediate
representation.
Clamping this value both prevents a SIGFPE and also aligns the check
with reality.
The linker command can exceed the maximum argument limit on MinGW,
especially for libavcodec.
The objects list is now stored in a file and passed to the linker.
This patch adds a fully-featured level 3 and 4 decoder for FFv1,
supporting Golomb and all Range coding variants, all pixel formats,
and all features, except for the newly added floating-point formats.
On a 6000 Ada, for 3840x2160 bgr0 content at 50Mbps (standard desktop
recording), it is able to do 400fps.
An Alder Lake with 24 threads can barely do 100fps.
This commit adds a reference to the buffer as an argument to
start_frame, and adapts all existing code.
This allows for asynchronous hardware accelerators to skip
copying packet data by referencing it.
This commit adds support for hardware accelerated decoding to
the decoder.
The previous commits already refactored the decoder, this commit
simply adds calls to hooks to decode.
Previously, the callback was only called on init. This makes it
get called on every frame.
We should switch to VK_KHR_video_maintenance2 and provide all params
upfront, but almost nothing supports it yet.
This commit uses the recently exported code for host mapping images back
where it was exported from.
The function also had broken download code for image downloading since its
recent refactor.
This commit adds a 32-bit *integer* planar RGBA format.
Vulkan FFv1 decoding is best performed on separate planes, rather than
packed RGBA (i.e. RGBA128), hence this is useful as an intermediate format.
Mixing declarations and code is quite common in Objective-C (as can be
seen by the number of warnings we have for this in Objective-C files)
and forcing to not do it usually results in worse code, with unnecessary
widely scoped variables, which in turn makes variable shadowing and
accidentally using the wrong variable more common and harder to notice.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
Passing Objective-C flags from configure to the Makefiles was broken, as
configure incorrectly used the OBJCCFLAGS instead of OBJCFLAGS variable
which was then later overwritten in the common.mak:
OBJCCFLAGS = $(CPPFLAGS) $(CFLAGS) $(OBJCFLAGS)
The fix for this is simple, analogous to how it is handled for CFLAGS,
use OBJCFLAGS here so that the flags are properly included in the
aforementioned OBJCCFLAGS definition.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
Nothing in this decoder would break if the generic code were to be
changed to allow slice "threading" with only one thread.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Fixes undefined integer overflows. The overflows could always
happen, yet before 4d8b706b1d
it was not undefined because the code implicitly used atomic
types, for which signed integer overflow is defined.
Reported-by: Kacper Michajlow <kasper93@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
If there were not enough data, checksum_size would be read
as zero (due to the implicit checks of the bytestream2 API)
and run into a "data block size invalid" error. Erroring out
earlier via "not enough extradata" is better.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
It makes no sense to try to be exact with max depth
in get_vlc2(): It will mean that the compiler emits code
for all three stages of parsing and runtime checks for
whether max_depth is big enough to parse the next stage
when a not yet complete code has been encountered.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
