He Junyan 36fd4d5d8a plugin: encode: List all possible profiles to detect input formats. ... The current get_profile just return one possible profile for the encode, which is not enough. For example, if we want to support HEVC 4:4:4 profile, the input of encode should be VYUA rather than NV12 in HEVC main profile. So the command line: gst-launch-1.0 videotestsrc num-buffers=200 ! capsfilter \ caps=video/x-raw,format=VUYA,width=800,height=600 ! vaapih265enc \ tune=low-power init-qp=30 ! fakesink can not work because vaapih265enc just report NV12 in sink caps, we need to specify the profile obviously like: gst-launch-1.0 videotestsrc num-buffers=200 ! capsfilter \ caps=video/x-raw,format=VUYA,width=800,height=600 ! vaapih265enc \ tune=low-power init-qp=30 ! capsfilter caps=video/x-h265, \ profile=main-444 ! fakesink The encode should have the ability to choose the profile based on input format automatically. If the input video format is VUYA, the main-444 profile should be auto choosed. We modify to let get_allowed_profiles of each encode sub class to return an array of all supported profiles based on downstream's allowed caps, or return NULL if no valid profiles specified by downstream. If no allowed profiles found, all profiles which belong to the current encoder's codec will be the candidates. The function gst_vaapi_encoder_get_surface_attributes collects the surface's attributes for that profile list we just get. So for this case, both NV12 and VUYA should be returned. TODO: some codec like VP9, need to implement the get_profile() function.		2020-01-14 11:36:18 +00:00
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gst	plugin: encode: List all possible profiles to detect input formats.	2020-01-14 11:36:18 +00:00
meson.build	vaapi: add meson build	2017-02-09 11:27:44 +01:00