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gstreamer/subprojects/gst-plugins-bad/sys/v4l2codecs/meson.build

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v4l2codecs: Introdude a V4L2 CODECs Accelerator plugin This plugin will support new CODECs uAPI in the Linux kernel. These consist of an accelerator interface similar to DXVA, NVDEC, VDPAU and VAAPI.
2020-02-03 15:06:46 +00:00
v4l2codecs_sources = [
'plugin.c',
v4l2codec: Add allocator and pool implementation This is a pooling allocator and the buffer pool does nothing other then reusing the GstBuffer structure. Note that the pool is an internal pool, so the start/stop/set_config virtual functions are not implemented.
2020-02-13 04:45:14 +00:00
'gstv4l2codecallocator.c',
v4l2codecs: Add device enumeration This introduces a GstV4L2CodecDevice structure and helper to retrieve a list of CODEC device drivers. In order to find the device driver we enumerate all media devices with UDEV. We then get the media controller topology and locate a entity with function encoder or decoder and make sure it is linked to two V4L2 IO entity pointing to the same device node.
2020-02-04 20:52:45 +00:00
'gstv4l2codecdevice.c',
v4l2codecs: Add skeleton of H264 decoder This introduces the skeleton of the H264 decoder. The plugin will list the devices and register a subclass of the GstV4L2CodecH264Dec base class. The subclass will pick the required specific information from the GstV4L2Device stored in the subclass structure.
2020-02-09 16:31:11 +00:00
'gstv4l2codech264dec.c',
v4l2codecs: Implement a MPEG2 V4L2 decoder element Implement a MPEG2 V4L2 decoder element based on the previous h264 implementation. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>
2021-04-06 19:40:28 +00:00
'gstv4l2codecmpeg2dec.c',
v4l2codec: Add allocator and pool implementation This is a pooling allocator and the buffer pool does nothing other then reusing the GstBuffer structure. Note that the pool is an internal pool, so the start/stop/set_config virtual functions are not implemented.
2020-02-13 04:45:14 +00:00
'gstv4l2codecpool.c',
v4l2codecs: Factor out plugin registration This introduce a common place for generic functions and factor out the plugin registration code. This code is nearly identical between implementation. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1216>
2020-04-28 00:26:54 +00:00
'gstv4l2codecvp8dec.c',
v4l2codecs: vp9dec: Implement VP9 v4l2 decoder Implement a v4l2 based vp9 decoder element based on the preexisting vp8 v4l2 decoder. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1012>
2021-03-30 16:30:46 +00:00
'gstv4l2codecvp9dec.c',
v4l2codec: Add GstV4L2Deocder helper object This is a GstObject which will be used to hold on media and video device file descriptor and provide abstracted ioctl calls with these descriptor. At the moment this helper contains just enough to enumerate the supported format. This part will be used by the plugin to register the CODEC specific elements..
2020-02-06 02:42:56 +00:00
'gstv4l2decoder.c',
v4l2codecs: Add initial formats helpers
2020-02-10 23:02:37 +00:00
'gstv4l2format.c',
v4l2codecs: add wrappers for alpha decode codecalpha is a new plugin introduced to support VP8/VP9 alpha as defined in the WebM and Matroska specifications. It splits the stream into two streams, one for the alpha and one for the actual content, then it decodes them separately with vpxdec and finally combine the results as A420 or AV12 (i.e. YUV + an extra alpha plane). The workflow above is setup by means of a bin, gstcodecalphabin. This patch simulates the same workflow into the v4l2codecs namespace, thus using the new v4l2 stateless decoders for hardware acceleration. This is so we can register the new alpha decode elements only if the hardware produces formats we support, i.e. I420 or NV12 for now. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2272>
2021-05-22 19:29:09 +00:00
'gstv4l2codecalphadecodebin.c',
v4l2codecs: Introdude a V4L2 CODECs Accelerator plugin This plugin will support new CODECs uAPI in the Linux kernel. These consist of an accelerator interface similar to DXVA, NVDEC, VDPAU and VAAPI.
2020-02-03 15:06:46 +00:00
]
v4l2codecs: Add device enumeration This introduces a GstV4L2CodecDevice structure and helper to retrieve a list of CODEC device drivers. In order to find the device driver we enumerate all media devices with UDEV. We then get the media controller topology and locate a entity with function encoder or decoder and make sure it is linked to two V4L2 IO entity pointing to the same device node.
2020-02-04 20:52:45 +00:00
libgudev_dep = dependency('gudev-1.0', required: get_option('v4l2codecs'))
v4l2codecs: Only build this plugin on Linux This is not useful on any other OSs, it will also avoid potential build failure as this code uses Linux specific calls.
2020-03-26 19:57:17 +00:00
if get_option('v4l2codecs').disabled()
have_v4l2 = false
message('V4L2 CODECs plugin is disabled')
else
# Should only be built on Linux, check for Linux kernel headers even though
# we have our own copy.
have_v4l2 = cc.has_header('linux/videodev2.h')
if get_option('v4l2codecs').enabled() and not have_v4l2
error('V4L2i CODECs is requested but kernel headers were not found')
endif
v4l2codecs: Fix compilation error on FreeBSD This commit does the following things to fix compilation on FreeBSD: 1. Add required typedefs to linux/types-compat.h. 2. Remove unnecessary include linux/ioctl.h and replace linux/types.h with linux/types-compat.h. Both files do not exist on FreeBSD. 3. Check the header including makedev macro. FreeBSD does not have sys/sysmacros.h, and including it unconditionally causes error. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1259>
2020-05-10 09:38:11 +00:00
# Find makedev in various header files. Different operating systems put the
# macro in different header files.
foreach name: ['mkdev', 'sysmacros', 'types']
have_makedev = cc.has_header_symbol('sys/@0@.h'.format(name), 'makedev')
cdata.set10('HAVE_MAKEDEV_IN_' + name.to_upper(), have_makedev)
endforeach
v4l2codecs: Only build this plugin on Linux This is not useful on any other OSs, it will also avoid potential build failure as this code uses Linux specific calls.
2020-03-26 19:57:17 +00:00
endif
if have_v4l2 and libgudev_dep.found()
v4l2codecs: Add device enumeration This introduces a GstV4L2CodecDevice structure and helper to retrieve a list of CODEC device drivers. In order to find the device driver we enumerate all media devices with UDEV. We then get the media controller topology and locate a entity with function encoder or decoder and make sure it is linked to two V4L2 IO entity pointing to the same device node.
2020-02-04 20:52:45 +00:00
gstv4l2codecs = library('gstv4l2codecs',
v4l2codecs_sources,
c_args : gst_plugins_bad_args,
cpp_args: gst_plugins_bad_args,
include_directories : [configinc],
v4l2codecs: add wrappers for alpha decode codecalpha is a new plugin introduced to support VP8/VP9 alpha as defined in the WebM and Matroska specifications. It splits the stream into two streams, one for the alpha and one for the actual content, then it decodes them separately with vpxdec and finally combine the results as A420 or AV12 (i.e. YUV + an extra alpha plane). The workflow above is setup by means of a bin, gstcodecalphabin. This patch simulates the same workflow into the v4l2codecs namespace, thus using the new v4l2 stateless decoders for hardware acceleration. This is so we can register the new alpha decode elements only if the hardware produces formats we support, i.e. I420 or NV12 for now. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2272>
2021-05-22 19:29:09 +00:00
dependencies : [gstbase_dep, gstcodecs_dep, gstallocators_dep, libgudev_dep,
gstpbutils_dep,],
v4l2codecs: Add device enumeration This introduces a GstV4L2CodecDevice structure and helper to retrieve a list of CODEC device drivers. In order to find the device driver we enumerate all media devices with UDEV. We then get the media controller topology and locate a entity with function encoder or decoder and make sure it is linked to two V4L2 IO entity pointing to the same device node.
2020-02-04 20:52:45 +00:00
install : true,
install_dir : plugins_install_dir,
)
pkgconfig.generate(gstv4l2codecs, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstv4l2codecs]
endif
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