Move ACMCodecDB::ValidPayloadType to RentACodec

webrtc/modules/audio_coding/main/acm2/acm_codec_database.cc

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 226 matching lines @@
 int ACMCodecDB::CodecNumber(const CodecInst& codec_inst) {
   // Look for a matching codec in the database.
   int codec_id = CodecId(codec_inst);
 
   // Checks if we found a matching codec.
   if (codec_id == -1) {
     return kInvalidCodec;
   }
 
   // Checks the validity of payload type
-  if (!ValidPayloadType(codec_inst.pltype)) {
+  if (!RentACodec::IsPayloadTypeValid(codec_inst.pltype)) {
     return kInvalidPayloadtype;
   }
 
   // Comfort Noise is special case, packet-size & rate is not checked.
   if (STR_CASE_CMP(database_[codec_id].plname, "CN") == 0) {
     return codec_id;
   }
 
   // RED is special case, packet-size & rate is not checked.
   if (STR_CASE_CMP(database_[codec_id].plname, "red") == 0) {
@@ skipping 83 matching lines @@
 }
 
 // Returns the codec sampling frequency for codec with id = "codec_id" in
 // database.
 int ACMCodecDB::CodecFreq(int codec_id) {
   const size_t i = static_cast<size_t>(codec_id);
   const auto db = RentACodec::Database();
   return i < db.size() ? db[i].plfreq : -1;
 }
 
-// Checks if the payload type is in the valid range.
-bool ACMCodecDB::ValidPayloadType(int payload_type) {
-  return (payload_type >= 0) && (payload_type <= 127);
-}
-
 }  // namespace acm2
 
 }  // namespace webrtc