Add device orientation information to header information

[sbfkcel]

This is useful if need to draw the device appearance correctly.

Related Discussions

#5704
#3605
#925

#5894

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CODEC    SESSION packet                         SESSION packet
[codec] [type|width|height|orient] […] […] […] [type|width|height|orient] […] […]
                                              ^
                                              rotation occurs

CODEC packet：

• codecId 4byte

SESSION packet:

• type 1byte, The SESSION packet type is 0xff
• width 4byte
• hegiht 4byte
• orient 3byte
  • isFlip 1byte
  • 180° 1byte
  • 90° 1byte

Orient format reference source

scrcpy/app/src/options.h

Lines 72 to 85 in 7998811

	// ,----- hflip (applied before the rotation)
	// | ,--- 180°
	// | | ,- 90° clockwise
	// | | |
	enum sc_orientation { // v v v
	SC_ORIENTATION_0, // 0 0 0
	SC_ORIENTATION_90, // 0 0 1
	SC_ORIENTATION_180, // 0 1 0
	SC_ORIENTATION_270, // 0 1 1
	SC_ORIENTATION_FLIP_0, // 1 0 0
	SC_ORIENTATION_FLIP_90, // 1 0 1
	SC_ORIENTATION_FLIP_180, // 1 1 0
	SC_ORIENTATION_FLIP_270, // 1 1 1
	};

Test run

meson setup x --buildtype=release --strip -Db_lto=true &&  ninja -Cx && ./run x

Output

INFO: Width=1920, Height=864, Flip=False, Direction=1

[sbfkcel]

The previous fork has too many redundant records, use the new pull.

@rom1v Please check again to see if there are any new suggestions.