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encoding.go
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encoding.go
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// Copyright 2023 LiveKit, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"github.com/livekit/egress/pkg/errors"
"github.com/livekit/egress/pkg/types"
"github.com/livekit/protocol/livekit"
)
func (p *PipelineConfig) applyPreset(preset livekit.EncodingOptionsPreset) {
switch preset {
case livekit.EncodingOptionsPreset_H264_720P_30:
p.Width = 1280
p.Height = 720
p.Framerate = 30
p.VideoBitrate = 3000
case livekit.EncodingOptionsPreset_H264_720P_60:
p.Width = 1280
p.Height = 720
p.Framerate = 60
p.VideoBitrate = 4500
case livekit.EncodingOptionsPreset_H264_1080P_30:
p.Width = 1920
p.Height = 1080
p.Framerate = 30
p.VideoBitrate = 4500
case livekit.EncodingOptionsPreset_H264_1080P_60:
p.Width = 1920
p.Height = 1080
p.Framerate = 60
p.VideoBitrate = 6000
case livekit.EncodingOptionsPreset_PORTRAIT_H264_720P_30:
p.Width = 720
p.Height = 1280
p.Framerate = 30
p.VideoBitrate = 3000
case livekit.EncodingOptionsPreset_PORTRAIT_H264_720P_60:
p.Width = 720
p.Height = 1280
p.Framerate = 60
p.VideoBitrate = 4500
case livekit.EncodingOptionsPreset_PORTRAIT_H264_1080P_30:
p.Width = 1080
p.Height = 1920
p.Framerate = 30
p.VideoBitrate = 4500
case livekit.EncodingOptionsPreset_PORTRAIT_H264_1080P_60:
p.Width = 1080
p.Height = 1920
p.Framerate = 60
p.VideoBitrate = 6000
}
}
func (p *PipelineConfig) applyAdvanced(advanced *livekit.EncodingOptions) error {
// audio
switch advanced.AudioCodec {
case livekit.AudioCodec_OPUS:
p.AudioOutCodec = types.MimeTypeOpus
case livekit.AudioCodec_AAC:
p.AudioOutCodec = types.MimeTypeAAC
}
if advanced.AudioBitrate != 0 {
p.AudioBitrate = advanced.AudioBitrate
}
if advanced.AudioFrequency != 0 {
p.AudioFrequency = advanced.AudioFrequency
}
// video
switch advanced.VideoCodec {
case livekit.VideoCodec_H264_BASELINE:
p.VideoOutCodec = types.MimeTypeH264
p.VideoProfile = types.ProfileBaseline
case livekit.VideoCodec_H264_MAIN:
p.VideoOutCodec = types.MimeTypeH264
case livekit.VideoCodec_H264_HIGH:
p.VideoOutCodec = types.MimeTypeH264
p.VideoProfile = types.ProfileHigh
}
if advanced.Width > 0 {
if advanced.Width < 16 || advanced.Width%2 == 1 {
return errors.ErrInvalidInput("width")
}
p.Width = advanced.Width
}
if advanced.Height > 0 {
if advanced.Height < 16 || advanced.Height%2 == 1 {
return errors.ErrInvalidInput("height")
}
p.Height = advanced.Height
}
switch advanced.Depth {
case 0:
case 8, 16, 24:
p.Depth = advanced.Depth
default:
return errors.ErrInvalidInput("depth")
}
if advanced.Framerate != 0 {
p.Framerate = advanced.Framerate
}
if advanced.VideoBitrate != 0 {
p.VideoBitrate = advanced.VideoBitrate
}
if advanced.KeyFrameInterval != 0 {
p.KeyFrameInterval = advanced.KeyFrameInterval
}
return nil
}