98.testing.md

---

This area is for testing, and not part of the AV1 bitstream document. {:.alert .alert-danger style="margin-top: 120px;"}

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Heretical Syntax Tables
Below is a syntax table marked up as an HTML <table>. While a bit awkward to construct, it's made much less awkward by placing the elementation notation in the first column -- which leaves the right column free to overflow. This has the further advantage of breaking gracefully on rows in a print-like presentation. Sadly, (1) each line of code must be delimited with backticks (`) or the leading indentation is flattened, and (2) pipe characters within code must be backslash-escaped so they're not mistaken for cell delimiters.

An alternative post-proc method for preserving indentation might replace each leading space in table.syntax td:nth-child(2) with a non-breaking space ( ). This would avoid the need for backticks, but pipes would still need escaping. {:.bs-callout .bs-callout-info }

Corner-case kramdown bug
Actually, the table below exposes a kramdown bug. Each line of pseudocode is delimited with backticks except for line 3 (@@profile_low_bit). For reasons unknown, delimiting this string with backticks breaks table transformation. {:.alert .alert-warning }

Unimpressed Footer Syntax

{:.no_toc .no_count }

Type	Pseudocode
	uncompressed_header( ) {
f(2)	@@frame_marker
f(1)	@@profile_low_bit
f(1)	@@profile_high_bit
	Profile = (profile_high_bit << 1) + profile_low_bit
	if ( Profile == 3 )
f(1)	@@reserved_zero
f(1)	@@show_existing_frame
	if ( show_existing_frame == 1 ) {
f(3)	@@frame_to_show_map_idx
	header_size_in_bytes = 0
	refresh_frame_flags = 0
	loop_filter_level = 0
	return
	}
	LastFrameType = frame_type
f(1)	@@frame_type
f(1)	@@show_frame
	if ( frame_type == KEY_FRAME || show_frame ) {
	intra_only = 0
	} else {
f(1)	@@intra_only
	}
	}
{:.syntax }

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