Revert of L16 implementation of the Audio{En,De}coderFactoryTemplate APIs

webrtc/api/audio_codecs/L16/audio_encoder_L16.cc

-/*
- *  Copyright (c) 2017 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/api/audio_codecs/L16/audio_encoder_L16.h"
-
-#include "webrtc/common_types.h"
-#include "webrtc/modules/audio_coding/codecs/pcm16b/audio_encoder_pcm16b.h"
-#include "webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h"
-#include "webrtc/rtc_base/ptr_util.h"
-
-namespace webrtc {
-
-rtc::Optional<AudioEncoderL16::Config> AudioEncoderL16::SdpToConfig(
-    const SdpAudioFormat& format) {
-  Config config;
-  config.sample_rate_hz = format.clockrate_hz;
-  config.num_channels = format.num_channels;
-  return STR_CASE_CMP(format.name.c_str(), "L16") == 0 && config.IsOk()
-             ? rtc::Optional<Config>(config)
-             : rtc::Optional<Config>();
-}
-
-void AudioEncoderL16::AppendSupportedEncoders(
-    std::vector<AudioCodecSpec>* specs) {
-  Pcm16BAppendSupportedCodecSpecs(specs);
-}
-
-AudioCodecInfo AudioEncoderL16::QueryAudioEncoder(
-    const AudioEncoderL16::Config& config) {
-  RTC_DCHECK(config.IsOk());
-  return {config.sample_rate_hz,
-          rtc::dchecked_cast<size_t>(config.num_channels),
-          config.sample_rate_hz * config.num_channels * 16};
-}
-
-std::unique_ptr<AudioEncoder> AudioEncoderL16::MakeAudioEncoder(
-    const AudioEncoderL16::Config& config,
-    int payload_type) {
-  RTC_DCHECK(config.IsOk());
-  AudioEncoderPcm16B::Config c;
-  c.sample_rate_hz = config.sample_rate_hz;
-  c.num_channels = config.num_channels;
-  c.frame_size_ms = config.frame_size_ms;
-  c.payload_type = payload_type;
-  return rtc::MakeUnique<AudioEncoderPcm16B>(c);
-}
-
-}  // namespace webrtc