simple_encode: fix some -Wsign-compare warnings

Bug: webm:1731
Change-Id: I1db777c0c3a8784fb3dcf7cd39f78ebf833ab915

diff --git a/vp9/simple_encode.cc b/vp9/simple_encode.cc
index 7371eee8b909589065c2c58d1572d24d9f13c8b0..8ff5ad3c98be18067fde18c18f077ce2431af62b 100644 (file)
--- a/vp9/simple_encode.cc
+++ b/vp9/simple_encode.cc
@@ -1248,7 +1248,7 @@ static int GetCodingFrameNumFromGopMap(const std::vector<int> &gop_map) {
     start_show_index += gop_command.show_frame_count;
     coding_frame_count += gop_command_coding_frame_count(&gop_command);
   }
-  assert(start_show_index == gop_map.size());
+  assert(static_cast<size_t>(start_show_index) == gop_map.size());
   return coding_frame_count;
 }
 
@@ -1279,7 +1279,8 @@ int SimpleEncode::GetCodingFrameNum() const {
 
 std::vector<int> SimpleEncode::ComputeKeyFrameMap() const {
   // The last entry of first_pass_stats is the overall stats.
-  assert(impl_ptr_->first_pass_stats.size() == num_frames_ + 1);
+  assert(impl_ptr_->first_pass_stats.size() ==
+         static_cast<size_t>(num_frames_) + 1);
   vpx_rational_t frame_rate =
       make_vpx_rational(frame_rate_num_, frame_rate_den_);
   const VP9EncoderConfig oxcf = GetEncodeConfig(