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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,16 +1,16 @@ | ||
| package eu.darken.fpv.dvca.dvr.core | ||
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| import android.net.Uri | ||
| import okio.Source | ||
| import okio.Sink | ||
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| interface DvrRecorder { | ||
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| fun record(source: Source, target: Uri): Session | ||
| fun record(storagePath: Uri): Session | ||
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| interface Session { | ||
| val sink: Sink | ||
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| fun stop() | ||
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| fun cancel() | ||
| } | ||
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| } |
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61 changes: 61 additions & 0 deletions
61
app/src/main/java/eu/darken/fpv/dvca/gear/goggles/common/TeeSource.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| package eu.darken.fpv.dvca.gear.goggles.common | ||
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| import eu.darken.androidstarter.common.logging.v | ||
| import eu.darken.androidstarter.common.logging.w | ||
| import okio.* | ||
| import java.io.IOException | ||
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| class TeeSource(private val upstream: Source) : Source { | ||
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| private val sideStreams = mutableListOf<BufferedSink>() | ||
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| fun addSideSink(sink: BufferedSink) { | ||
| v { "addSideSink(sink=$sink)" } | ||
| sideStreams.add(sink) | ||
| } | ||
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| override fun read(sink: Buffer, byteCount: Long): Long { | ||
| val bytesRead = try { | ||
| upstream.read(sink, byteCount) | ||
| } catch (e: IOException) { | ||
| sideStreams.iterator().forEach { it.tryClose() } | ||
| throw e | ||
| } | ||
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| if (bytesRead == -1L) { | ||
| sideStreams.iterator().forEach { it.tryClose() } | ||
| return -1L | ||
| } | ||
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| val offset = sink.size - bytesRead | ||
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| with(sideStreams.listIterator()) { | ||
| forEach { | ||
| if (!it.isOpen) { | ||
| remove() | ||
| return@forEach | ||
| } | ||
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| sink.copyTo(it.buffer, offset, bytesRead) | ||
| it.emitCompleteSegments() | ||
| } | ||
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| return bytesRead | ||
| } | ||
| } | ||
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| override fun close() { | ||
| sideStreams.iterator().forEach { it.tryClose() } | ||
| upstream.close() | ||
| } | ||
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| override fun timeout(): Timeout = upstream.timeout() | ||
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| private fun Sink.tryClose() = try { | ||
| close() | ||
| } catch (e: Exception) { | ||
| w { "Sink failed to close: already closed: $e" } | ||
| } | ||
| } | ||
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| fun Source.tee(): TeeSource = TeeSource(this) |
45 changes: 45 additions & 0 deletions
45
app/src/main/java/eu/darken/fpv/dvca/gear/goggles/djifpv/ExoDataSource.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package eu.darken.fpv.dvca.gear.goggles.djifpv | ||
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| import android.net.Uri | ||
| import com.google.android.exoplayer2.C | ||
| import com.google.android.exoplayer2.upstream.DataSource | ||
| import com.google.android.exoplayer2.upstream.DataSpec | ||
| import com.google.android.exoplayer2.upstream.TransferListener | ||
| import eu.darken.fpv.dvca.gear.goggles.Goggles | ||
| import okio.BufferedSource | ||
| import okio.buffer | ||
| import timber.log.Timber | ||
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| class ExoDataSource( | ||
| private val videoFeed: Goggles.VideoFeed, | ||
| private val tag: String, | ||
| ) : DataSource { | ||
| private var exoBuffer: BufferedSource? = null | ||
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| override fun getUri(): Uri? = Uri.EMPTY | ||
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| override fun addTransferListener(transferListener: TransferListener) {} | ||
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| override fun open(dataSpec: DataSpec): Long { | ||
| Timber.tag(tag).v("open(dataSpec=%s) this=%s", dataSpec, this) | ||
| videoFeed.open() | ||
| exoBuffer = videoFeed.source.buffer() | ||
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| return if (dataSpec.length != C.LENGTH_UNSET.toLong()) { | ||
| dataSpec.length | ||
| } else { | ||
| C.LENGTH_UNSET.toLong() | ||
| } | ||
| } | ||
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| override fun read(target: ByteArray, offset: Int, length: Int): Int { | ||
| return exoBuffer?.read(target, offset, length) ?: -1 | ||
| } | ||
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| override fun close() { | ||
| Timber.tag(tag).d("close(), source, this=%s", this) | ||
| videoFeed.close() | ||
| exoBuffer?.close() | ||
| exoBuffer = null | ||
| } | ||
| } |
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