ffv1enc_vulkan: minor EC optimizations

Lynne committed 1 year ago

Commit 52595021 parent 7c0a8c01 file · +6 −13Browse files

Showing the changes to libavcodec (1 of 1 file). Show all

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@@ -109,14 +109,10 @@ void put_rac_direct(inout RangeCoder c, inout uint8_t state, bool bit) · 108 unmodified lines
109	109	#endif
110	110
111	111	int diff = c.range - range1;
112		− if (bit) {
113		− c.low += diff;
114		− c.range = range1;
115		− } else {
116		− c.range = diff;
117		− }
	112	+ c.low += bit ? diff : 0;
	113	+ c.range = bit ? range1 : diff;
118	114
119		− if (c.range < 0x100)
	115	+ if (expectEXT(c.range < 0x100, false))
120	116	renorm_encoder(c);
121	117
122	118	state = zero_one_state[(uint(bit) << 8) + state];
@@ -139,12 +135,9 @@ void put_rac_equi(inout RangeCoder c, bool bit) · 16 unmodified lines
139	135	debugPrintfEXT("Error: range1 <= 0");
140	136	#endif
141	137
142		− if (bit) {
143		− c.low += c.range - range1;
144		− c.range = range1;
145		− } else {
146		− c.range -= range1;
147		− }
	138	+ int diff = c.range - range1;
	139	+ c.low += bit ? diff : 0;
	140	+ c.range = bit ? range1 : diff;
148	141
149	142	if (expectEXT(c.range < 0x100, false))
150	143	renorm_encoder(c);

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