Download offline DRM license from non-UI thread
PiperOrigin-RevId: 328904901
This commit is contained in:
christosts
Oliver Woodman
parent
e1c3da2a74
commit
603dcf4978
@ -16,10 +16,12 @@
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package com.google.android.exoplayer2.demo;
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import static com.google.android.exoplayer2.util.Assertions.checkNotNull;
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import static com.google.android.exoplayer2.util.Assertions.checkStateNotNull;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.widget.Toast;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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@ -170,6 +172,7 @@ public class DownloadTracker {
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private TrackSelectionDialog trackSelectionDialog;
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private MappedTrackInfo mappedTrackInfo;
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private WidevineOfflineLicenseFetchTask widevineOfflineLicenseFetchTask;
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@Nullable private byte[] keySetId;
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public StartDownloadDialogHelper(
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@ -185,6 +188,9 @@ public class DownloadTracker {
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if (trackSelectionDialog != null) {
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trackSelectionDialog.dismiss();
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}
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if (widevineOfflineLicenseFetchTask != null) {
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widevineOfflineLicenseFetchTask.cancel(false);
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}
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}
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// DownloadHelper.Callback implementation.
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@ -192,59 +198,32 @@ public class DownloadTracker {
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@Override
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public void onPrepared(@NonNull DownloadHelper helper) {
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@Nullable Format format = getFirstFormatWithDrmInitData(helper);
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if (format != null) {
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if (Util.SDK_INT < 18) {
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Toast.makeText(context, R.string.error_drm_unsupported_before_api_18, Toast.LENGTH_LONG)
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.show();
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Log.e(TAG, "Downloading DRM protected content is not supported on API versions below 18");
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return;
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}
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// TODO(internal b/163107948): Support cases where DrmInitData are not in the manifest.
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if (!hasSchemaData(format.drmInitData)) {
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Toast.makeText(context, R.string.download_start_error_offline_license, Toast.LENGTH_LONG)
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.show();
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Log.e(
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TAG,
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"Downloading content where DRM scheme data is not located in the manifest is not"
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+ " supported");
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return;
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}
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try {
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// TODO(internal b/163107948): Download the license on another thread to keep the UI
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// thread unblocked.
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fetchOfflineLicense(format);
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} catch (DrmSession.DrmSessionException e) {
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Toast.makeText(context, R.string.download_start_error_offline_license, Toast.LENGTH_LONG)
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.show();
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Log.e(TAG, "Failed to fetch offline DRM license", e);
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return;
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}
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}
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if (helper.getPeriodCount() == 0) {
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Log.d(TAG, "No periods found. Downloading entire stream.");
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startDownload();
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downloadHelper.release();
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if (format == null) {
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onDownloadPrepared(helper);
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return;
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}
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mappedTrackInfo = downloadHelper.getMappedTrackInfo(/* periodIndex= */ 0);
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if (!TrackSelectionDialog.willHaveContent(mappedTrackInfo)) {
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Log.d(TAG, "No dialog content. Downloading entire stream.");
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startDownload();
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downloadHelper.release();
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// The content is DRM protected. We need to acquire an offline license.
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if (Util.SDK_INT < 18) {
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Toast.makeText(context, R.string.error_drm_unsupported_before_api_18, Toast.LENGTH_LONG)
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.show();
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Log.e(TAG, "Downloading DRM protected content is not supported on API versions below 18");
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return;
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}
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trackSelectionDialog =
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TrackSelectionDialog.createForMappedTrackInfoAndParameters(
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/* titleId= */ R.string.exo_download_description,
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mappedTrackInfo,
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trackSelectorParameters,
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/* allowAdaptiveSelections =*/ false,
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/* allowMultipleOverrides= */ true,
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/* onClickListener= */ this,
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/* onDismissListener= */ this);
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trackSelectionDialog.show(fragmentManager, /* tag= */ null);
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// TODO(internal b/163107948): Support cases where DrmInitData are not in the manifest.
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if (!hasSchemaData(format.drmInitData)) {
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Toast.makeText(context, R.string.download_start_error_offline_license, Toast.LENGTH_LONG)
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.show();
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Log.e(
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TAG,
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"Downloading content where DRM scheme data is not located in the manifest is not"
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+ " supported");
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return;
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}
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widevineOfflineLicenseFetchTask =
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new WidevineOfflineLicenseFetchTask(
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format, mediaItem.playbackProperties.drmConfiguration.licenseUri, this, helper);
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widevineOfflineLicenseFetchTask.execute();
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}
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@Override
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@ -292,6 +271,44 @@ public class DownloadTracker {
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// Internal methods.
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private void onOfflineLicenseFetched(DownloadHelper helper, byte[] keySetId) {
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this.keySetId = keySetId;
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onDownloadPrepared(helper);
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}
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private void onOfflineLicenseFetchedError(DrmSession.DrmSessionException e) {
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Toast.makeText(context, R.string.download_start_error_offline_license, Toast.LENGTH_LONG)
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.show();
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Log.e(TAG, "Failed to fetch offline DRM license", e);
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}
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private void onDownloadPrepared(DownloadHelper helper) {
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if (helper.getPeriodCount() == 0) {
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Log.d(TAG, "No periods found. Downloading entire stream.");
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startDownload();
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downloadHelper.release();
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return;
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}
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mappedTrackInfo = downloadHelper.getMappedTrackInfo(/* periodIndex= */ 0);
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if (!TrackSelectionDialog.willHaveContent(mappedTrackInfo)) {
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Log.d(TAG, "No dialog content. Downloading entire stream.");
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startDownload();
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downloadHelper.release();
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return;
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}
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trackSelectionDialog =
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TrackSelectionDialog.createForMappedTrackInfoAndParameters(
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/* titleId= */ R.string.exo_download_description,
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mappedTrackInfo,
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trackSelectorParameters,
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/* allowAdaptiveSelections =*/ false,
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/* allowMultipleOverrides= */ true,
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/* onClickListener= */ this,
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/* onDismissListener= */ this);
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trackSelectionDialog.show(fragmentManager, /* tag= */ null);
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}
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private void startDownload() {
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startDownload(buildDownloadRequest());
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}
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@ -306,15 +323,54 @@ public class DownloadTracker {
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.getDownloadRequest(Util.getUtf8Bytes(checkNotNull(mediaItem.mediaMetadata.title)))
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.copyWithKeySetId(keySetId);
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}
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}
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@RequiresApi(18)
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private void fetchOfflineLicense(Format format) throws DrmSession.DrmSessionException {
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/** Downloads a Widevine offline license in a background thread. */
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@RequiresApi(18)
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private final class WidevineOfflineLicenseFetchTask extends AsyncTask<Void, Void, Void> {
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private final Format format;
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private final Uri licenseUri;
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private final StartDownloadDialogHelper dialogHelper;
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private final DownloadHelper downloadHelper;
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@Nullable private byte[] keySetId;
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@Nullable private DrmSession.DrmSessionException drmSessionException;
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public WidevineOfflineLicenseFetchTask(
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Format format,
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Uri licenseUri,
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StartDownloadDialogHelper dialogHelper,
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DownloadHelper downloadHelper) {
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this.format = format;
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this.licenseUri = licenseUri;
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this.dialogHelper = dialogHelper;
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this.downloadHelper = downloadHelper;
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}
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@Override
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protected Void doInBackground(Void... voids) {
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OfflineLicenseHelper offlineLicenseHelper =
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OfflineLicenseHelper.newWidevineInstance(
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mediaItem.playbackProperties.drmConfiguration.licenseUri.toString(),
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licenseUri.toString(),
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httpDataSourceFactory,
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new DrmSessionEventListener.EventDispatcher());
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keySetId = offlineLicenseHelper.downloadLicense(format);
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try {
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keySetId = offlineLicenseHelper.downloadLicense(format);
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} catch (DrmSession.DrmSessionException e) {
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drmSessionException = e;
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} finally {
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offlineLicenseHelper.release();
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}
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return null;
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}
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@Override
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protected void onPostExecute(Void aVoid) {
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if (drmSessionException != null) {
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dialogHelper.onOfflineLicenseFetchedError(drmSessionException);
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} else {
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dialogHelper.onOfflineLicenseFetched(downloadHelper, checkStateNotNull(keySetId));
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}
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}
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}
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