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This commit is contained in:
Ali
2021-02-26 19:34:22 +04:00
parent 8d0a7f70ed
commit 14755ca84a
212 changed files with 567 additions and 7 deletions
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22
submodules/MediaPlayer/Sources/FFMpegAudioFrameDecoder.swift
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@@ -11,11 +11,29 @@ final class FFMpegAudioFrameDecoder: MediaTrackFrameDecoder {
private var delayedFrames: [MediaTrackFrame] = []
init(codecContext: FFMpegAVCodecContext) {
init(codecContext: FFMpegAVCodecContext, sampleRate: Int = 44100, channelCount: Int = 2) {
self.codecContext = codecContext
self.audioFrame = FFMpegAVFrame()
self.swrContext = FFMpegSWResample(sourceChannelCount: Int(codecContext.channels()), sourceSampleRate: Int(codecContext.sampleRate()), sourceSampleFormat: codecContext.sampleFormat(), destinationChannelCount: 2, destinationSampleRate: 44100, destinationSampleFormat: FFMPEG_AV_SAMPLE_FMT_S16)
self.swrContext = FFMpegSWResample(sourceChannelCount: Int(codecContext.channels()), sourceSampleRate: Int(codecContext.sampleRate()), sourceSampleFormat: codecContext.sampleFormat(), destinationChannelCount: channelCount, destinationSampleRate: sampleRate, destinationSampleFormat: FFMPEG_AV_SAMPLE_FMT_S16)
}
func decodeRaw(frame: MediaTrackDecodableFrame) -> Data? {
let status = frame.packet.send(toDecoder: self.codecContext)
if status == 0 {
let result = self.codecContext.receive(into: self.audioFrame)
if case .success = result {
guard let data = self.swrContext.resample(self.audioFrame) else {
return nil
}
return data
} else {
return nil
}
} else {
return nil
}
}
func decode(frame: MediaTrackDecodableFrame) -> MediaTrackFrame? {