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

webrtc/api/audio_codecs/L16/audio_decoder_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_decoder_L16.h"
+
+#include "webrtc/common_types.h"
+#include "webrtc/modules/audio_coding/codecs/pcm16b/audio_decoder_pcm16b.h"
+#include "webrtc/modules/audio_coding/codecs/pcm16b/pcm16b_common.h"
+#include "webrtc/rtc_base/ptr_util.h"
+
+namespace webrtc {
+
+rtc::Optional<AudioDecoderL16::Config> AudioDecoderL16::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 AudioDecoderL16::AppendSupportedDecoders(
+    std::vector<AudioCodecSpec>* specs) {
+  Pcm16BAppendSupportedCodecSpecs(specs);
+}
+
+std::unique_ptr<AudioDecoder> AudioDecoderL16::MakeAudioDecoder(
+    const Config& config) {
+  return config.IsOk() ? rtc::MakeUnique<AudioDecoderPcm16B>(
+                             config.sample_rate_hz, config.num_channels)
+                       : nullptr;
+}
+
+}  // namespace webrtc