The test constructs 66 sine waves of different frequencies and joins
them into a 7th order ambisonic layout with extra non-diegetic
stereo. The channels are then shifted circularly with channelmap and
separated into individual streams for muxing with channelsplit.
Note that the last step is necessary because swr is not capable of
interleaving planar to packed for more than 64 channels, which would be
necessary to mux such a stream as PCM.
The old query code never worked properly, and did some hideous
heuristics to read the status bit, and work that into a return
code.
This is all best left to callers to do, which simplifies
our code a lot.
This also fixes minor validation errors regarding calling queries
which are not in their active state.
The issue is that we ask for storage images by default if
available, but because that is gated by the format supporting
storage images, and the check for the format supporting storage
images is gated by the usage, this resulted in a catch-22.
Vulkan supports some stupidly odd hardware, that unfortunately,
most modern GPUs happen to be.
The DPB images for encoders may be required to be preallocated
all at once, and rather than be individual frames, be layers of
a single frame.
As the hw_base_encode code is written with the thought that either
the driver or the device itself supports sane image allocation,
Vulkan does not leave us with this option.
So, in the case that the hardware does not support individual
frames to be used as DPBs, make the DBP frames context optional,
and let the subsystem manage this.
This commit cleans up and refactors the mess of private state upon
private state that used to be.
Now, FFHWBaseEncodePicture is fully initialized upon call-time,
and, most importantly, this lets APIs which require initialization
data for frames (VkImageViews) to initialize this for both the
input image, and the reconstruction (DPB) image.
Signed-off-by: Tong Wu <wutong1208@outlook.com>
Aurelien last activity in git is from 2017, last activity on the ML is from 2018
David last activity in git is from 2011, and ML from 2013
matroska* is actively maintained
CC: Aurelien Jacobs <aurel@gnuage.org>
CC: David Conrad <lessen42@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Last icecast threads have Marvin in them so it seems maintained
CC: Marvin Scholz <epirat07@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Timothy has not reacted to any fate admin related mails i can remember
last was handled by timo, prior where probably handled by me
CC: Timothy Gu <timothygu99@gmail.com>
CC: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Last mail and commit from Robert seems from 2011, thats 13 years ago
CC: Rob <robert.swain@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This is no longer needed, since we now correctly negotiate the required
range from the mjpeg encoder via avcodec_get_supported_config().
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The only meaningful difference between choose_pix_fmts and the default
code was the inclusion of an extra branch for `keep_pix_fmt` being true.
However, in this case, we either:
1. Force the specific `ofp->format` that we inherited from
ofilter_bind_ost, or if no format was set:
2. Print an empty format list
Both of these goals can be accomplished by simply moving the decision
logic to ofilter_bind_ost, to avoid setting any format list when
keep_pix_fmt is enabled. This is arguably cleaner as it moves format
selection logic to a single function. In the case of branch 1, nothing
else needs to be done as we already force the format provided in
ofp->format, if any is set. Add an assertion to verify this assumption
just in case.
(Side note: The "choose_*" family of functions are arguably misnomers,
as they should really be called "print_*" - their current behavior is to
print the relevant format lists to the `vf/af_format` filter arguments)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Niklas Haas <git@haasn.dev>
Having macros initialize local variables seems strange to me, and there
are no more current users of these macros. (The one that was commented
out was incorrect anyway, since the macro has changed in the meantime)
While rewriting this macro, I decided to make it a bit more flexible so
it can work for all of the fields (including future fields) in a more
generic way, and to also print the channel layout using an AVBPrint to
avoid hard-coding the assumption that the length is less than 128
characters.
This codec's capabilities should be set dynamically based on the value
of strict_std_compliance, when available. This will allow us to finally
get rid of the strictness hack in ffmpeg_filter.c.
Anton Khirnov
Brad Smith
Lynne
Marvin Scholz
James Almer
Niklas Haas
Michael Niedermayer
Christian Helmrich