Prepare to convert various types to size_t.

webrtc/modules/audio_coding/codecs/g722/audio_encoder_g722.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/modules/audio_coding/codecs/g722/include/audio_encoder_g722.h"
 
 #include <limits>
 #include "webrtc/base/checks.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/audio_coding/codecs/g722/include/g722_interface.h"
 
 namespace webrtc {
 
 namespace {
 
 const int kSampleRateHz = 16000;
 
 }  // namespace
 
 bool AudioEncoderG722::Config::IsOk() const {
-  return (frame_size_ms % 10 == 0) && (num_channels >= 1);
+  return (frame_size_ms > 0) && (frame_size_ms % 10 == 0) &&
+      (num_channels >= 1);
 }
 
 AudioEncoderG722::EncoderState::EncoderState() {
   CHECK_EQ(0, WebRtcG722_CreateEncoder(&encoder));
   CHECK_EQ(0, WebRtcG722_EncoderInit(encoder));
 }
 
 AudioEncoderG722::EncoderState::~EncoderState() {
   CHECK_EQ(0, WebRtcG722_FreeEncoder(encoder));
 }
@@ skipping 108 matching lines @@
   config.payload_type = codec_inst.pltype;
   return config;
 }
 }  // namespace
 
 AudioEncoderMutableG722::AudioEncoderMutableG722(const CodecInst& codec_inst)
     : AudioEncoderMutableImpl<AudioEncoderG722>(CreateConfig(codec_inst)) {
 }
 
 }  // namespace webrtc