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Initial implementation of video compression for Android (including ca…
…ncellation option)
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101 changes: 101 additions & 0 deletions
101
...roidMain/kotlin/com/ustadmobile/core/domain/compress/video/CompressVideoUseCaseAndroid.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package com.ustadmobile.core.domain.compress.video | ||
|
|
||
| import android.content.Context | ||
| import android.net.Uri | ||
| import androidx.core.net.toFile | ||
| import com.otaliastudios.transcoder.Transcoder | ||
| import com.otaliastudios.transcoder.TranscoderListener | ||
| import com.otaliastudios.transcoder.strategy.DefaultVideoStrategy | ||
| import com.ustadmobile.core.domain.compress.CompressParams | ||
| import com.ustadmobile.core.domain.compress.CompressProgressUpdate | ||
| import com.ustadmobile.core.domain.compress.CompressResult | ||
| import com.ustadmobile.core.domain.compress.CompressUseCase | ||
| import com.ustadmobile.core.ext.requireExtension | ||
| import com.ustadmobile.core.uri.UriHelper | ||
| import com.ustadmobile.door.DoorUri | ||
| import com.ustadmobile.door.ext.toDoorUri | ||
| import io.github.aakira.napier.Napier | ||
| import kotlinx.coroutines.CancellationException | ||
| import kotlinx.coroutines.CompletableDeferred | ||
| import java.io.File | ||
| import java.util.UUID | ||
|
|
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| class CompressVideoUseCaseAndroid( | ||
| private val appContext: Context, | ||
| private val uriHelper: UriHelper, | ||
| ): CompressUseCase { | ||
|
|
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| override suspend fun invoke( | ||
| fromUri: String, | ||
| toUri: String?, | ||
| params: CompressParams, | ||
| onProgress: CompressUseCase.OnCompressProgress? | ||
| ): CompressResult { | ||
| //As per https://developer.android.com/media/platform/supported-formats | ||
| val vidStrategy = DefaultVideoStrategy | ||
| .atMost(720, 1280) | ||
| .bitRate(500 * 1000) | ||
| .frameRate(30) | ||
| .mimeType("video/avc") | ||
| .build() | ||
|
|
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| val destFile = if(toUri != null) { | ||
| Uri.parse(toUri).toFile().requireExtension("mp4") | ||
| }else { | ||
| File(appContext.cacheDir, UUID.randomUUID().toString() + ".mp4") | ||
| } | ||
|
|
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| val sizeIn = uriHelper.getSize(DoorUri.parse(fromUri)) | ||
| Napier.v { "CompressVideoUseCase: video size in: $sizeIn " } | ||
|
|
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| val completable = CompletableDeferred<Int>() | ||
| val transcoder = Transcoder.into(destFile.absolutePath) | ||
| .addDataSource(appContext, Uri.parse(fromUri)) | ||
| .setVideoTrackStrategy(vidStrategy) | ||
| .setListener(object: TranscoderListener { | ||
| override fun onTranscodeProgress(progress: Double) { | ||
| Napier.v { "CompressVideoUseCase: progress: $progress completed=(${(progress * sizeIn).toLong()}" } | ||
| onProgress?.invoke( | ||
| CompressProgressUpdate( | ||
| fromUri = fromUri, | ||
| completed = (progress * sizeIn).toLong(), | ||
| total = sizeIn | ||
| ) | ||
| ) | ||
| } | ||
|
|
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| override fun onTranscodeCompleted(p0: Int) { | ||
| Napier.v { "CompressVideoUseCase: completed: $p0" } | ||
| completable.complete(p0) | ||
| } | ||
|
|
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| override fun onTranscodeCanceled() { | ||
|
|
||
| } | ||
|
|
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| override fun onTranscodeFailed(p0: Throwable) { | ||
| Napier.e(throwable = p0) { "CompressVideoCase: failed"} | ||
| completable.completeExceptionally(p0) | ||
|
|
||
| } | ||
| }) | ||
|
|
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| try { | ||
| val future = transcoder.transcode() | ||
| try { | ||
| completable.await() | ||
| }catch(e: CancellationException) { | ||
| future.cancel(true) | ||
| throw e | ||
| } | ||
| }catch(e2: Throwable) { | ||
| Napier.e("CompressVideoUseCase: Exception", e2) | ||
| } | ||
|
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|
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| return CompressResult( | ||
| uri = destFile.toDoorUri().toString(), | ||
| mimeType = "video/avc" | ||
| ) | ||
| } | ||
| } |
17 changes: 17 additions & 0 deletions
17
...admobile/core/domain/contententry/importcontent/CancelImportContentEntryUseCaseAndroid.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package com.ustadmobile.core.domain.contententry.importcontent | ||
|
|
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| import android.content.Context | ||
| import androidx.work.WorkManager | ||
| import com.ustadmobile.core.account.Endpoint | ||
|
|
||
| class CancelImportContentEntryUseCaseAndroid( | ||
| private val appContext: Context, | ||
| private val endpoint: Endpoint, | ||
| ): CancelImportContentEntryUseCase { | ||
|
|
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| override fun invoke(cjiUid: Long) { | ||
| WorkManager.getInstance(appContext).cancelUniqueWork( | ||
| EnqueueContentEntryImportUseCase.uniqueIdFor(endpoint, cjiUid) | ||
| ) | ||
| } | ||
| } |
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