* Clarify video capture method
* fix improper level of pointer usage of xcb_generic_error_t
* add ffi of xcb_shm_query_version
* throw a warn about MIT-SHM not working
* add missing #[cfg]
* checks SHM validity on the fly, rather than cache on creation
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Co-authored-by: root <root@localhost>
Co-authored-by: rustdesk-fork <rustdesk@fork.com>
1. For example: when receiving h264 video frames, only 1 decoder is created, vram > ram
2. For creation and decoding failed:
* Remove real_supported_decodings, this will update real existing decoders, replace it with the "mark_unsupported" vector. After creating the decoder failure, marks the codec as unsupported and updates supported decoding to the controlled side
* Add `fail_counter` in the decoder. When decoding 10 consecutive frames failed, adding codec type to 'mark_unsupported' vector
* The controlled end always ignores the unavailability of VP9
Signed-off-by: 21pages <pages21@163.com>