Update qmin/qmax values for libx264 presets

Also allow qmin/qmax to go up to 69 (the current max value for libx264).  This
will have to increase when we add 9/10-bit support.

ffpresets/libx264-fast.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=2

ffpresets/libx264-fast_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1

ffpresets/libx264-faster.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=2

ffpresets/libx264-faster_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1

ffpresets/libx264-lossless_fast.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 directpred=1
 flags2=+fastpskip

ffpresets/libx264-lossless_max.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 refs=16
 directpred=1

ffpresets/libx264-lossless_medium.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 directpred=1
 flags2=+fastpskip

ffpresets/libx264-lossless_slow.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 refs=2
 directpred=1

ffpresets/libx264-lossless_slower.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 refs=4
 directpred=1

ffpresets/libx264-lossless_ultrafast.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 directpred=1
 flags2=+fastpskip

ffpresets/libx264-medium.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=3

ffpresets/libx264-medium_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1

ffpresets/libx264-placebo.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=2
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=16
 refs=16

ffpresets/libx264-placebo_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=2
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=16
 refs=16

ffpresets/libx264-slow.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=2
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=5

ffpresets/libx264-slow_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=2
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1

ffpresets/libx264-slower.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=2
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=8

ffpresets/libx264-slower_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=2
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1

ffpresets/libx264-superfast.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1

ffpresets/libx264-superfast_firstpass.ffpreset

@@ -11,8 +11,8 @@ sc_threshold=40
 i_qfactor=0.71
 b_strategy=1
 qcomp=0.6
-qmin=10
-qmax=51
+qmin=0
+qmax=69
 qdiff=4
 bf=3
 refs=1