[x265] [PATCH 3 of 8] remove reduce check on firstC2FlagIdx

[Min Chen]

# HG changeset patch
# User Min Chen <chenm003 at 163.com>
# Date 1430390933 -28800
# Node ID 62549ea896fe857e2470a23b79af4356fa5af792
# Parent  e868d30fef884dbc885add30c6bda471db0f7abf
remove reduce check on firstC2FlagIdx
---
 source/encoder/entropy.cpp |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diff -r e868d30fef88 -r 62549ea896fe source/encoder/entropy.cpp
--- a/source/encoder/entropy.cpp	Thu Apr 30 18:48:49 2015 +0800
+++ b/source/encoder/entropy.cpp	Thu Apr 30 18:48:53 2015 +0800
@@ -1759,11 +1759,10 @@
             if (!c1)
             {
                 baseCtxMod = bIsLuma ? &m_contextState[OFF_ABS_FLAG_CTX + ctxSet] : &m_contextState[OFF_ABS_FLAG_CTX + NUM_ABS_FLAG_CTX_LUMA + ctxSet];
-                if (firstC2FlagIdx != -1)
-                {
-                    uint32_t symbol = absCoeff[firstC2FlagIdx] > 2;
-                    encodeBin(symbol, baseCtxMod[0]);
-                }
+
+                X265_CHECK((firstC2FlagIdx != -1), "firstC2FlagIdx check failure\n");
+                uint32_t symbol = absCoeff[firstC2FlagIdx] > 2;
+                encodeBin(symbol, baseCtxMod[0]);
             }
 
             const int hiddenShift = (bHideFirstSign && signHidden) ? 1 : 0;