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alsa-compress-offload-sink: major sink rework

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* Add support for running the sink as a driver
* Detect which compressed formats are actually supported
* Correctly open/close/start/stop device according to the node commands
* Shift away from tinycompress and use Compress-Offload ioctls directly
  to be able to access various caps information (including fragment sizes)
  which are unavailable in the tinycompress API
* Implement SPA_PARAM_PropInfo and SPA_PARAM_Props support
This commit is contained in:
Carlos Rafael Giani 2023-02-11 20:52:06 +01:00
parent f03c606ad9
commit 031f992981
6 changed files with 1941 additions and 695 deletions
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6
spa/meson.build
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@ -92,9 +92,9 @@ if get_option('spa-plugins').allowed()
libcamera_dep = dependency('libcamera', required: get_option('libcamera'))
summary({'libcamera': libcamera_dep.found()}, bool_yn: true, section: 'Backend')
tinycompress_dep = cc.find_library('tinycompress', has_headers: ['tinycompress/tinycompress.h' ], required: get_option('compress-offload'))
summary({'Compress-Offload': tinycompress_dep.found()}, bool_yn: true, section: 'Backend')
cdata.set('HAVE_ALSA_COMPRESS_OFFLOAD', tinycompress_dep.found())
compress_offload_option = get_option('compress-offload')
summary({'Compress-Offload': compress_offload_option.allowed()}, bool_yn: true, section: 'Backend')
cdata.set('HAVE_ALSA_COMPRESS_OFFLOAD', compress_offload_option.allowed())
# common dependencies
libudev_dep = dependency('libudev', required: alsa_dep.found() or get_option('udev').enabled() or get_option('v4l2').enabled())