The issue is that a race condition exists between threads locking
frames, which results in cyclic loops and deadlocks.
Compute-based implementations are not affected.
Fixes#20169
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.
Start by moving the DPB to it.
Only one context exists for now, so decoder behaviour should not change
with this commit, but that will change in the future.
They are only used in vulkan_hevc and are not actually needed, as they
can be computed from delta_poc.
Reduces sizeof(HEVCSPS) by 16kB.
Also, fix a typo (s0->s1) in the code being touched.
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.
Keep it for external users in order to not cause breakages.
Also improve the other headers a bit while just at it.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
These were defined in a way compatible with the Vulkan HEVC acceleration, which
expects bitmasks, yet the fields were being overwritting on each loop with the
latest read value.
Signed-off-by: James Almer <jamrial@gmail.com>
Only three of the 226 (== AV_CODEC_ID_AV1) entries
have been used. Unsparsing this table is especially
important given that this array lives in .data.rel.ro.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
All the fields of FFVkCodecMap are either decoder-only
or encoder-only (with the latter being unused and unset for now).
Yet there is already a per-decoder struct containing
static information about these decoders, namely
VkExtensionProperties.
This commit merges the decoder-parts of FFVkCodecMap
with the VkExtensionProperties into a common structure.
Given that FFVkCodecMap is now unused, it is removed.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
FIx warnings (soon to be errors in GCC 14, already so in Clang 15):
```
src/libavcodec/vulkan_av1.c: In function ‘vk_av1_create_params’:
src/libavcodec/vulkan_av1.c:183:43: error: initialization of ‘long long unsigned int’ from ‘void *’ makes integer from pointer without a cast [-Wint-conversion]
183 | .videoSessionParametersTemplate = NULL,
| ^~~~
src/libavcodec/vulkan_av1.c:183:43: note: (near initialization for ‘(anonymous).videoSessionParametersTemplate’)
```
Use Vulkan's VK_NULL_HANDLE instead of bare NULL.
Fix Trac ticket #10724.
Was reported downstream in Gentoo at https://bugs.gentoo.org/919067.
Signed-off-by: Sam James <sam@gentoo.org>
Avoids allocations and therefore error checks: Syncing
hwaccel_picture_private across threads can't fail any more.
Also gets rid of an unnecessary pointer in structures and
in the parameter list of ff_hwaccel_frame_priv_alloc().
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Reviewed-by: Lynne <dev@lynne.ee>
Tested-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Avoids allocations and error checks for these allocations;
e.g. syncing buffers across threads can't fail any more
and needn't be checked. It also gets rid of casts and
indirections.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Some clips (i.e. SLIST_B_Sony_9) will use PPS 0 and 8, before PPS 1-7.
vulkan_hevc expects {sps,pps,vps}_list to be filled in order, which
causes PPS 8 to not be added to the Vulkan session params when it is
being used by a picture.
This removes the expectation that these lists are filled in order. The
indicies into vps_list are saved since there are multiple usages of it.
This also fixes a bug with some clips (i.e. PPS_A_qualcomm_7) which use
all 64 available PPS slots, causing the old loop to think there are more
than 64 PPS-es.
All Vulkan HWAccels share the same boilerplate code for creating
session params and this includes a common bug: In case actually
creating the video session parameters fails, the buffer destined
to hold them leaks; in case of HEVC this is also true if
get_data_set_buf() fails.
This commit factors this code out and fixes the leak.
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is the AVHWAccel analogue of commit
20f9727018: It moves the private fields
of AVHWAccel to a new struct FFHWAccel extending AVHWAccel
in an internal header (namely hwaccel_internal.h).
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
The hevc parser parses the diagonal scan order in bitstream into raster
scan order. However, the Vulkan spec wants it as specified in H265 spec,
which is diagonal scan order.
Tested on RADV.
v2: fix copy-paste typo with PPS.
I don't pretend to understand how we get into this situation, but there
are files out there where we can end up with the active PPS not being
identified when we call vk_hevc_end_frame. In these situations today,
we will segfault. So, before we give up, see if we can get the active
PPS id from the slice header, and use that if possible.
If that still doesn't work, return an error instead of segfaulting.
As per the spec:
VUID-VkVideoDecodeH264PictureInfoKHR-sliceCount-arraylength
sliceCount must be greater than 0
VUID-VkVideoDecodeH265PictureInfoKHR-sliceSegmentCount-arraylength
sliceSegmentCount must be greater than 0
This particularly happens with seeking in field-coded H264.
This commit scraps a bool to signal to recreate the session parameters,
but instead destroys them, forcing them to be recreated.
As this can happen between start_frame and end_frame, do this
at both places.
Move the slice offsets buffer to the thread decode context.
It isn't part of the resources for frame decoding, the driver
has to process and finish with it at submission time.
That way, it doesn't need to be alloc'd + freed on every frame.
It was introduced for Vulkan, but it is equivalent to
short_term_ref_pic_set_size when !short_term_ref_pic_set_sps_flag,
and when !!short_term_ref_pic_set_sps_flag, Vulkan hardcodes a zero
anyway.
