webrtc/api/audio_codecs/L16/audio_decoder_L16.cc
Oskar Sundbom 90657302be Optional: Use nullopt and implicit construction in /api/audio_codecs
Changes places where we explicitly construct an Optional to instead use
nullopt or the requisite value type only.

This CL was uploaded by git cl split.

R=kwiberg@webrtc.org

Bug: None
Change-Id: I30f47ec9b6dbef216ee061a96fad8ca14c041bb5
Reviewed-on: https://webrtc-review.googlesource.com/23566
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Oskar Sundbom <ossu@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20711}
2017-11-16 12:54:53 +00:00

43 lines
1.5 KiB
C++

/*
* 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 "api/audio_codecs/L16/audio_decoder_L16.h"
#include "common_types.h" // NOLINT(build/include)
#include "modules/audio_coding/codecs/pcm16b/audio_decoder_pcm16b.h"
#include "modules/audio_coding/codecs/pcm16b/pcm16b_common.h"
#include "rtc_base/ptr_util.h"
#include "rtc_base/safe_conversions.h"
namespace webrtc {
rtc::Optional<AudioDecoderL16::Config> AudioDecoderL16::SdpToConfig(
const SdpAudioFormat& format) {
Config config;
config.sample_rate_hz = format.clockrate_hz;
config.num_channels = rtc::checked_cast<int>(format.num_channels);
return STR_CASE_CMP(format.name.c_str(), "L16") == 0 && config.IsOk()
? rtc::Optional<Config>(config)
: rtc::nullopt;
}
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