539ef94f20
Review URL: https://webrtc-codereview.appspot.com/399002 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1741 4adac7df-926f-26a2-2b94-8c16560cd09d
137 lines
3.6 KiB
C++
137 lines
3.6 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "acm_dtmf_detection.h"
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#include "audio_coding_module.h"
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#include "audio_coding_module_impl.h"
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#include "trace.h"
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namespace webrtc
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{
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// Create module
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AudioCodingModule*
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AudioCodingModule::Create(
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const WebRtc_Word32 id)
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{
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return new AudioCodingModuleImpl(id);
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}
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// Destroy module
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void
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AudioCodingModule::Destroy(
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AudioCodingModule* module)
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{
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delete static_cast<AudioCodingModuleImpl*> (module);
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}
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// Get number of supported codecs
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WebRtc_UWord8 AudioCodingModule::NumberOfCodecs()
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{
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return static_cast<WebRtc_UWord8>(ACMCodecDB::kNumCodecs);
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}
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// Get supported codec param with id
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WebRtc_Word32
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AudioCodingModule::Codec(
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const WebRtc_UWord8 listId,
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CodecInst& codec)
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{
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// Get the codec settings for the codec with the given list ID
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return ACMCodecDB::Codec(listId, &codec);
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}
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// Get supported codec Param with name
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WebRtc_Word32
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AudioCodingModule::Codec(
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const WebRtc_Word8* payloadName,
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CodecInst& codec,
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const WebRtc_Word32 samplingFreqHz)
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{
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// Search through codec list for a matching name
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for(int codecCntr = 0; codecCntr < ACMCodecDB::kNumCodecs; codecCntr++)
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{
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// Store codec settings for codec number "codeCntr" in the output struct
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ACMCodecDB::Codec(codecCntr, &codec);
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if(!STR_CASE_CMP(codec.plname, payloadName))
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{
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// If samplingFreqHz is set (!= -1), check if frequency matches
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if((samplingFreqHz == codec.plfreq) || (samplingFreqHz == -1))
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{
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// We found a match, return OK
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return 0;
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}
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}
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}
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// if we are here we couldn't find anything
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// set the params to unacceptable values
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codec.plname[0] = '\0';
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codec.pltype = -1;
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codec.pacsize = 0;
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codec.rate = 0;
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codec.plfreq = 0;
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return -1;
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}
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// Get supported codec Index with name, and frequency if needed
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WebRtc_Word32
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AudioCodingModule::Codec(
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const WebRtc_Word8* payloadName,
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const WebRtc_Word32 samplingFreqHz)
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{
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CodecInst codec;
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// Search through codec list for a matching name
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for(int codecCntr = 0; codecCntr < ACMCodecDB::kNumCodecs; codecCntr++)
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{
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// Temporally store codec settings for codec number "codeCntr" in "codec"
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ACMCodecDB::Codec(codecCntr, &codec);
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if(!STR_CASE_CMP(codec.plname, payloadName))
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{
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// If samplingFreqHz is set (!= -1), check if frequency matches
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if((samplingFreqHz == codec.plfreq) || (samplingFreqHz == -1))
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{
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// We found a match, return codec list number (index)
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return codecCntr;
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}
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}
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}
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// We did not find a matching codec in the list
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return -1;
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}
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// Checks the validity of the parameters of the given codec
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bool
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AudioCodingModule::IsCodecValid(
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const CodecInst& codec)
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{
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int mirrorID;
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char errMsg[500];
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int codecNumber = ACMCodecDB::CodecNumber(&codec, &mirrorID, errMsg, 500);
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if(codecNumber < 0)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, -1, errMsg);
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return false;
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}
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else
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{
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return true;
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}
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}
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} // namespace webrtc
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