CustomVideoDecoderFactory.kt
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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 io.livekit.android.webrtc
import org.webrtc.EglBase
import org.webrtc.SoftwareVideoDecoderFactory
import org.webrtc.VideoCodecInfo
import org.webrtc.VideoDecoder
import org.webrtc.VideoDecoderFactory
import org.webrtc.WrappedVideoDecoderFactory
class CustomVideoDecoderFactory(
sharedContext: EglBase.Context?,
private var forceSWCodec: Boolean = false,
private var forceSWCodecs: List<String> = listOf("VP9"),
) : VideoDecoderFactory {
private val softwareVideoDecoderFactory = SoftwareVideoDecoderFactory()
private val wrappedVideoDecoderFactory = WrappedVideoDecoderFactory(sharedContext)
fun setForceSWCodec(forceSWCodec: Boolean) {
this.forceSWCodec = forceSWCodec
}
fun setForceSWCodecList(forceSWCodecs: List<String>) {
this.forceSWCodecs = forceSWCodecs
}
override fun createDecoder(videoCodecInfo: VideoCodecInfo): VideoDecoder? {
if (forceSWCodec) {
return softwareVideoDecoderFactory.createDecoder(videoCodecInfo)
}
if (forceSWCodecs.isNotEmpty()) {
if (forceSWCodecs.contains(videoCodecInfo.name)) {
return softwareVideoDecoderFactory.createDecoder(videoCodecInfo)
}
}
return wrappedVideoDecoderFactory.createDecoder(videoCodecInfo)
}
override fun getSupportedCodecs(): Array<VideoCodecInfo> {
return if (forceSWCodec && forceSWCodecs.isEmpty()) {
softwareVideoDecoderFactory.supportedCodecs
} else {
wrappedVideoDecoderFactory.supportedCodecs
}
}
}