Source code
Revision control
Copy as Markdown
Other Tools
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
package org.mozilla.gecko.media;
import android.annotation.SuppressLint;
import android.media.MediaCrypto;
import android.media.MediaDrm;
import android.os.Build;
import android.util.Log;
import java.util.ArrayList;
import java.util.UUID;
import org.mozilla.gecko.annotation.WrapForJNI;
import org.mozilla.gecko.mozglue.JNIObject;
public final class MediaDrmProxy {
private static final String LOGTAG = "GeckoMediaDrmProxy";
private static final boolean DEBUG = false;
private static final UUID WIDEVINE_SCHEME_UUID =
new UUID(0xedef8ba979d64aceL, 0xa3c827dcd51d21edL);
private static final String WIDEVINE_KEY_SYSTEM = "com.widevine.alpha";
@WrapForJNI private static final String AAC = "audio/mp4a-latm";
@WrapForJNI private static final String AVC = "video/avc";
@WrapForJNI private static final String AV1 = "video/av01";
@WrapForJNI private static final String VORBIS = "audio/vorbis";
@WrapForJNI private static final String VP8 = "video/x-vnd.on2.vp8";
@WrapForJNI private static final String VP9 = "video/x-vnd.on2.vp9";
@WrapForJNI private static final String OPUS = "audio/opus";
@WrapForJNI private static final String FLAC = "audio/flac";
public static final ArrayList<MediaDrmProxy> sProxyList = new ArrayList<MediaDrmProxy>();
// A flag to avoid using the native object that has been destroyed.
private boolean mDestroyed;
private GeckoMediaDrm mImpl;
private String mDrmStubId;
private static boolean isSystemSupported() {
// Support versions >= Marshmallow
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
if (DEBUG)
Log.d(LOGTAG, "System Not supported !!, current SDK version is " + Build.VERSION.SDK_INT);
return false;
}
return true;
}
@SuppressLint("NewApi")
@WrapForJNI
public static boolean isSchemeSupported(final String keySystem) {
if (!isSystemSupported()) {
return false;
}
if (keySystem.equals(WIDEVINE_KEY_SYSTEM)) {
return MediaDrm.isCryptoSchemeSupported(WIDEVINE_SCHEME_UUID)
&& MediaCrypto.isCryptoSchemeSupported(WIDEVINE_SCHEME_UUID);
}
if (DEBUG) Log.d(LOGTAG, "isSchemeSupported key sytem = " + keySystem);
return false;
}
@SuppressLint("NewApi")
@WrapForJNI
public static boolean IsCryptoSchemeSupported(final String keySystem, final String container) {
if (!isSystemSupported()) {
return false;
}
if (keySystem.equals(WIDEVINE_KEY_SYSTEM)) {
return MediaDrm.isCryptoSchemeSupported(WIDEVINE_SCHEME_UUID, container);
}
if (DEBUG)
Log.d(LOGTAG, "cannot decrypt key sytem = " + keySystem + ", container = " + container);
return false;
}
// Interface for callback to native.
public interface Callbacks {
void onSessionCreated(int createSessionToken, int promiseId, byte[] sessionId, byte[] request);
void onSessionUpdated(int promiseId, byte[] sessionId);
void onSessionClosed(int promiseId, byte[] sessionId);
void onSessionMessage(byte[] sessionId, int sessionMessageType, byte[] request);
void onSessionError(byte[] sessionId, String message);
// MediaDrm.KeyStatus is available in API level 23(M)
// For compatibility between L and M above, we'll unwrap the KeyStatus structure
// and store the keyid and status into SessionKeyInfo and pass to native(MediaDrmCDMProxy).
void onSessionBatchedKeyChanged(byte[] sessionId, SessionKeyInfo[] keyInfos);
void onRejectPromise(int promiseId, String message);
} // Callbacks
public static class NativeMediaDrmProxyCallbacks extends JNIObject implements Callbacks {
@WrapForJNI(calledFrom = "gecko")
NativeMediaDrmProxyCallbacks() {}
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onSessionCreated(
int createSessionToken, int promiseId, byte[] sessionId, byte[] request);
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onSessionUpdated(int promiseId, byte[] sessionId);
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onSessionClosed(int promiseId, byte[] sessionId);
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onSessionMessage(byte[] sessionId, int sessionMessageType, byte[] request);
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onSessionError(byte[] sessionId, String message);
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onSessionBatchedKeyChanged(byte[] sessionId, SessionKeyInfo[] keyInfos);
@Override
@WrapForJNI(dispatchTo = "gecko")
public native void onRejectPromise(int promiseId, String message);
@Override // JNIObject
protected void disposeNative() {
throw new UnsupportedOperationException();
}
} // NativeMediaDrmProxyCallbacks
// A proxy to callback from LocalMediaDrmBridge to native instance.
public static class MediaDrmProxyCallbacks implements GeckoMediaDrm.Callbacks {
private final Callbacks mNativeCallbacks;
private final MediaDrmProxy mProxy;
public MediaDrmProxyCallbacks(final MediaDrmProxy proxy, final Callbacks callbacks) {
mNativeCallbacks = callbacks;
mProxy = proxy;
}
@Override
public void onSessionCreated(
final int createSessionToken,
final int promiseId,
final byte[] sessionId,
final byte[] request) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onSessionCreated(createSessionToken, promiseId, sessionId, request);
}
}
@Override
public void onSessionUpdated(final int promiseId, final byte[] sessionId) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onSessionUpdated(promiseId, sessionId);
}
}
@Override
public void onSessionClosed(final int promiseId, final byte[] sessionId) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onSessionClosed(promiseId, sessionId);
}
}
@Override
public void onSessionMessage(
final byte[] sessionId, final int sessionMessageType, final byte[] request) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onSessionMessage(sessionId, sessionMessageType, request);
}
}
@Override
public void onSessionError(final byte[] sessionId, final String message) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onSessionError(sessionId, message);
}
}
@Override
public void onSessionBatchedKeyChanged(
final byte[] sessionId, final SessionKeyInfo[] keyInfos) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onSessionBatchedKeyChanged(sessionId, keyInfos);
}
}
@Override
public void onRejectPromise(final int promiseId, final String message) {
if (!mProxy.isDestroyed()) {
mNativeCallbacks.onRejectPromise(promiseId, message);
}
}
} // MediaDrmProxyCallbacks
public boolean isDestroyed() {
return mDestroyed;
}
@WrapForJNI(calledFrom = "gecko")
public static MediaDrmProxy create(final String keySystem, final Callbacks nativeCallbacks) {
return new MediaDrmProxy(keySystem, nativeCallbacks);
}
MediaDrmProxy(final String keySystem, final Callbacks nativeCallbacks) {
if (DEBUG) Log.d(LOGTAG, "Constructing MediaDrmProxy");
try {
mDrmStubId = UUID.randomUUID().toString();
final IMediaDrmBridge remoteBridge =
RemoteManager.getInstance().createRemoteMediaDrmBridge(keySystem, mDrmStubId);
mImpl = new RemoteMediaDrmBridge(remoteBridge);
mImpl.setCallbacks(new MediaDrmProxyCallbacks(this, nativeCallbacks));
sProxyList.add(this);
} catch (final Exception e) {
Log.e(LOGTAG, "Constructing MediaDrmProxy ... error", e);
}
}
@WrapForJNI
private void createSession(
final int createSessionToken,
final int promiseId,
final String initDataType,
final byte[] initData) {
if (DEBUG) Log.d(LOGTAG, "createSession, promiseId = " + promiseId);
mImpl.createSession(createSessionToken, promiseId, initDataType, initData);
}
@WrapForJNI
private void updateSession(final int promiseId, final String sessionId, final byte[] response) {
if (DEBUG)
Log.d(LOGTAG, "updateSession, primiseId(" + promiseId + "sessionId(" + sessionId + ")");
mImpl.updateSession(promiseId, sessionId, response);
}
@WrapForJNI
private void closeSession(final int promiseId, final String sessionId) {
if (DEBUG)
Log.d(LOGTAG, "closeSession, primiseId(" + promiseId + "sessionId(" + sessionId + ")");
mImpl.closeSession(promiseId, sessionId);
}
@WrapForJNI(calledFrom = "gecko")
private String getStubId() {
return mDrmStubId;
}
@WrapForJNI
public boolean setServerCertificate(final byte[] cert) {
try {
mImpl.setServerCertificate(cert);
return true;
} catch (final RuntimeException e) {
return false;
}
}
// Get corresponding MediaCrypto object by a generated UUID for MediaCodec.
// Will be called on MediaFormatReader's TaskQueue.
@WrapForJNI
public static MediaCrypto getMediaCrypto(final String stubId) {
for (final MediaDrmProxy proxy : sProxyList) {
if (proxy.getStubId().equals(stubId)) {
return proxy.getMediaCryptoFromBridge();
}
}
if (DEBUG) Log.d(LOGTAG, " NULL crytpo ");
return null;
}
@WrapForJNI // Called when natvie object is destroyed.
private void destroy() {
if (DEBUG) Log.d(LOGTAG, "destroy!! Native object is destroyed.");
if (mDestroyed) {
return;
}
mDestroyed = true;
release();
}
private void release() {
if (DEBUG) Log.d(LOGTAG, "release");
sProxyList.remove(this);
mImpl.release();
}
private MediaCrypto getMediaCryptoFromBridge() {
return mImpl != null ? mImpl.getMediaCrypto() : null;
}
}