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-rw-r--r--DOCS/tech/libavc-options.txt10
1 files changed, 7 insertions, 3 deletions
diff --git a/DOCS/tech/libavc-options.txt b/DOCS/tech/libavc-options.txt
index 01c01e860c..a3e063b690 100644
--- a/DOCS/tech/libavc-options.txt
+++ b/DOCS/tech/libavc-options.txt
@@ -104,13 +104,17 @@ vqcomp (0.0-1.0) quantizer compression (for pass1/2)
vrc_strategy (0,1,2)
FIXME (different rate control strategies)
-vlelim (0-1000) single coefficient elimination threshold for luminance
+vlelim (-1000-1000) single coefficient elimination threshold for luminance
0 disabled (default)
- 4 (JVT recommendation)
+ -4 (JVT recommendation)
+ negative values will allso consider the dc coefficient
+ should be at least -4 or lower for encoding at quant=1
-vcelim (0-1000) single coefficient elimination threshold for chrominance
+vcelim (-1000-1000) single coefficient elimination threshold for chrominance
0 disabled (default)
7 (JVT recommendation)
+ negative values will allso consider the dc coefficient
+ should be at least -4 or lower for encoding at quant=1
vstrict strict standard compliance
only recommended if you want to feed the output into the mpeg4 reference