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/*
* 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_encoder_L16.h"
#include "common_types.h" // NOLINT(build/include)
#include "modules/audio_coding/codecs/pcm16b/audio_encoder_pcm16b.h"
#include "modules/audio_coding/codecs/pcm16b/pcm16b_common.h"
#include "rtc_base/numerics/safe_conversions.h"
#include "rtc_base/ptr_util.h"
namespace webrtc {
rtc::Optional<AudioEncoderL16::Config> AudioEncoderL16::SdpToConfig(
const SdpAudioFormat& format) {
if (!rtc::IsValueInRangeForNumericType<int>(format.num_channels)) {
return rtc::nullopt;
}
Config config;
config.sample_rate_hz = format.clockrate_hz;
config.num_channels = rtc::dchecked_cast<int>(format.num_channels);
return STR_CASE_CMP(format.name.c_str(), "L16") == 0 && config.IsOk()
? rtc::Optional<Config>(config)
: rtc::nullopt;
}
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
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