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Diffstat (limited to 'third_party/libwebrtc/api/audio_codecs/opus/audio_encoder_multi_channel_opus_config.h')
-rw-r--r-- | third_party/libwebrtc/api/audio_codecs/opus/audio_encoder_multi_channel_opus_config.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/audio_codecs/opus/audio_encoder_multi_channel_opus_config.h b/third_party/libwebrtc/api/audio_codecs/opus/audio_encoder_multi_channel_opus_config.h new file mode 100644 index 0000000000..9b51246c15 --- /dev/null +++ b/third_party/libwebrtc/api/audio_codecs/opus/audio_encoder_multi_channel_opus_config.h @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2019 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. + */ + +#ifndef API_AUDIO_CODECS_OPUS_AUDIO_ENCODER_MULTI_CHANNEL_OPUS_CONFIG_H_ +#define API_AUDIO_CODECS_OPUS_AUDIO_ENCODER_MULTI_CHANNEL_OPUS_CONFIG_H_ + +#include <stddef.h> + +#include <vector> + +#include "absl/types/optional.h" +#include "api/audio_codecs/opus/audio_encoder_opus_config.h" +#include "rtc_base/system/rtc_export.h" + +namespace webrtc { + +struct RTC_EXPORT AudioEncoderMultiChannelOpusConfig { + static constexpr int kDefaultFrameSizeMs = 20; + + // Opus API allows a min bitrate of 500bps, but Opus documentation suggests + // bitrate should be in the range of 6000 to 510000, inclusive. + static constexpr int kMinBitrateBps = 6000; + static constexpr int kMaxBitrateBps = 510000; + + AudioEncoderMultiChannelOpusConfig(); + AudioEncoderMultiChannelOpusConfig(const AudioEncoderMultiChannelOpusConfig&); + ~AudioEncoderMultiChannelOpusConfig(); + AudioEncoderMultiChannelOpusConfig& operator=( + const AudioEncoderMultiChannelOpusConfig&); + + int frame_size_ms; + size_t num_channels; + enum class ApplicationMode { kVoip, kAudio }; + ApplicationMode application; + int bitrate_bps; + bool fec_enabled; + bool cbr_enabled; + bool dtx_enabled; + int max_playback_rate_hz; + std::vector<int> supported_frame_lengths_ms; + + int complexity; + + // Number of mono/stereo Opus streams. + int num_streams; + + // Number of channel pairs coupled together, see RFC 7845 section + // 5.1.1. Has to be less than the number of streams + int coupled_streams; + + // Channel mapping table, defines the mapping from encoded streams to input + // channels. See RFC 7845 section 5.1.1. + std::vector<unsigned char> channel_mapping; + + bool IsOk() const; +}; + +} // namespace webrtc +#endif // API_AUDIO_CODECS_OPUS_AUDIO_ENCODER_MULTI_CHANNEL_OPUS_CONFIG_H_ |