forked from marfrit/libva-v4l2-request-fourier
marfrit
2146341460
Adds a build-time switch so platforms that will never see a
daedalus_v4l2 kernel module (Allwinner cedrus, RK without the
shim, etc.) can opt out of the probe entry + dispatch branch.
meson setup build # daedalus support on
meson setup build-off -Ddaedalus_v4l2=false # off
Implementation:
- meson_options.txt: new boolean `daedalus_v4l2`, default true.
- src/meson.build: when option is true, autoconfig.h gets
`#define HAVE_DAEDALUS_V4L2 1`.
- src/request.c: known_decoder_drivers[] entry, primary-driver
detection branch, and post-probe log line all gated by
#ifdef HAVE_DAEDALUS_V4L2.
- src/request.h: struct daedalus fields kept UNCONDITIONAL.
Two extra int per session and the struct layout stays stable
across translation units regardless of option — avoids the
ODR risk of every consumer of request.h needing to include
autoconfig.h before request.h.
Verified on hertz: both builds compile clean.
build/src/autoconfig.h has HAVE_DAEDALUS_V4L2; .so contains
"daedalus_v4l2" string + log message.
build-off/src/autoconfig.h doesn't; .so contains no daedalus
strings at all.
Default-on build still passes vainfo end-to-end:
vainfo: Driver version: v4l2-request
vainfo: Supported profile and entrypoints
VAProfileH264Main / High / ConstrainedBaseline / MultiviewHigh
/ StereoHigh : VAEntrypointVLD
VAProfileVP9Profile0 : VAEntrypointVLD
VAProfileAV1Profile0 : VAEntrypointVLD
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
142 lines
3.7 KiB
Meson
142 lines
3.7 KiB
Meson
# Copyright (C) 2019 Bootlin
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sub license, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice (including the
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# next paragraph) shall be included in all copies or substantial portions
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# of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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# IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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autoconf_data = configuration_data()
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autoconf_data.set('VA_DRIVER_INIT_FUNC', va_driver_init_func)
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if get_option('daedalus_v4l2')
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autoconf_data.set('HAVE_DAEDALUS_V4L2', 1)
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endif
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autoconf = configure_file(
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output: 'autoconfig.h',
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configuration: autoconf_data)
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sources = [
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'request.c',
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'object_heap.c',
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'config.c',
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'surface.c',
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'context.c',
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'buffer.c',
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'picture.c',
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'subpicture.c',
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'image.c',
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'utils.c',
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'tiled_yuv.S',
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'video.c',
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'media.c',
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'v4l2.c',
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'mpeg2.c',
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'h264.c',
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'h264_slice_header.c',
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'request_pool.c',
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'cap_pool.c',
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'h265.c',
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'vp8.c',
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'vp9.c',
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'codec.c',
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'nv15.c',
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'nv12_col128.c',
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# Vendored GStreamer 1.28.2 H.265 parser + utilities (LGPL v2.1+,
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# see src/h265_parser/gst_compat.h for sourcing notes + per-iter2
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# adaptation strategy).
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'h265_parser/gst_compat.c',
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'h265_parser/gst/base/gstbitreader.c',
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'h265_parser/gst/base/gstbytereader.c',
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'h265_parser/gst/codecparsers/nalutils.c',
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'h265_parser/gst/codecparsers/gsth265parser.c'
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]
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headers = [
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'request.h',
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'object_heap.h',
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'config.h',
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'surface.h',
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'context.h',
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'buffer.h',
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'picture.h',
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'subpicture.h',
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'image.h',
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'utils.h',
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'tiled_yuv.h',
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'video.h',
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'media.h',
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'v4l2.h',
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'mpeg2.h',
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'h264.h',
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'h264_slice_header.h',
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'request_pool.h',
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'cap_pool.h',
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'h265.h',
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'vp8.h',
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'vp9.h',
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'codec.h',
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'nv15.h',
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'nv12_col128.h',
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# Internal mirror of Linux 7.0 V4L2 HEVC EXT_SPS_*_RPS UAPI defs
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# (allows building against pre-7.0 linux-api-headers; redundant
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# once the host headers are 7.0+).
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'hevc-ctrls/v4l2-hevc-ext-controls.h',
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# Vendored GStreamer + project shim headers (see sources above).
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'h265_parser/gst_compat.h',
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'h265_parser/gst/gst.h',
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'h265_parser/gst/glib-compat-private.h',
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'h265_parser/gst/base/base-prelude.h',
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'h265_parser/gst/base/gstbitreader.h',
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'h265_parser/gst/base/gstbytereader.h',
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'h265_parser/gst/base/gstbitwriter.h',
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'h265_parser/gst/codecparsers/codecparsers-prelude.h',
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'h265_parser/gst/codecparsers/gsth265parser.h',
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'h265_parser/gst/codecparsers/nalutils.h'
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]
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includes = [
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include_directories('../include'),
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# Vendored GStreamer parser tree — the parser's #include <gst/base/...>
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# style references resolve here via stub headers that redirect to
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# gst_compat.h.
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include_directories('h265_parser')
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]
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cflags = [
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'-Wall',
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'-fvisibility=hidden'
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]
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deps = [
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kernel_headers_dep,
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libva_dep,
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libdrm_dep
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]
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v4l2_request_drv_video = shared_module('v4l2_request_drv_video',
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name_prefix: '',
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install: true,
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install_dir: join_paths(get_option('libdir'), 'dri'),
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c_args: cflags,
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sources: [ sources, headers, autoconf ],
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include_directories: includes,
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dependencies: deps)
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