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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"
#include "nsIThread.idl"
#include "nsIPrincipal.idl"
#include "nsIFile.idl"

%{C++
#include "nsTArray.h"
#include "nsStringGlue.h"
class GMPAudioDecoderProxy;
class GMPDecryptorProxy;
class GMPVideoDecoderProxy;
class GMPVideoEncoderProxy;
class GMPVideoHost;
%}

[ptr] native GMPVideoDecoderProxy(GMPVideoDecoderProxy);
[ptr] native GMPVideoEncoderProxy(GMPVideoEncoderProxy);
[ptr] native GMPVideoHost(GMPVideoHost);
[ptr] native MessageLoop(MessageLoop);
[ptr] native TagArray(nsTArray<nsCString>);
[ptr] native GMPDecryptorProxy(GMPDecryptorProxy);
[ptr] native GMPAudioDecoderProxy(GMPAudioDecoderProxy);

[scriptable, uuid(56cc105f-dd27-4752-83e0-371908edba04)]
interface mozIGeckoMediaPluginService : nsISupports
{

  /**
   * The GMP thread. Callable from any thread.
   */
  readonly attribute nsIThread thread;

  /**
   * Get a plugin that supports the specified tags.
   * Callable on any thread
   */
  [noscript]
  boolean hasPluginForAPI(in ACString api, in TagArray tags);

  /**
   * Get the version of the plugin that supports the specified tags.
   * Callable on any thread
   */
  [noscript]
  ACString getPluginVersionForAPI(in ACString api,
                                  in TagArray tags);

  /**
   * Get a video decoder that supports the specified tags.
   * The array of tags should at least contain a codec tag, and optionally
   * other tags such as for EME keysystem.
   * Callable only on GMP thread.
   */
  [noscript]
  GMPVideoDecoderProxy getGMPVideoDecoder(in TagArray tags,
                                          [optional] in ACString nodeId,
                                          out GMPVideoHost outVideoHost);

  /**
   * Get a video encoder that supports the specified tags.
   * The array of tags should at least contain a codec tag, and optionally
   * other tags.
   * Callable only on GMP thread.
   */
  [noscript]
  GMPVideoEncoderProxy getGMPVideoEncoder(in TagArray tags,
		                                      [optional] in ACString nodeId,
		                                      out GMPVideoHost outVideoHost);

  // Returns an audio decoder that supports the specified tags.
  // The array of tags should at least contain a codec tag, and optionally
  // other tags such as for EME keysystem.
  // Callable only on GMP thread.
  GMPAudioDecoderProxy getGMPAudioDecoder(in TagArray tags,
                                          [optional] in ACString nodeId);

  // Returns a decryption session manager that supports the specified tags.
  // The array of tags should at least contain a key system tag, and optionally
  // other tags.
  // Callable only on GMP thread.
  GMPDecryptorProxy getGMPDecryptor(in TagArray tags, in ACString nodeId);

  /**
   * Add a directory to scan for gecko media plugins.
   * @note Main-thread API.
   */
  void addPluginDirectory(in AString directory);

  /**
   * Remove a directory for gecko media plugins.
   * @note Main-thread API.
   */
  void removePluginDirectory(in AString directory);

  /**
   * Gets the NodeId for a (origin, urlbarOrigin, isInprivateBrowsing) tuple.
   */
  ACString getNodeId(in AString origin,
                     in AString topLevelOrigin,
                     in bool inPrivateBrowsingMode);

  /**
   * Clears storage data associated with the origin.
   */
  void forgetThisSite(in AString origin);

  /**
   * Returns true if the given node id is allowed to store things
   * persistently on disk. Private Browsing and local content are not
   * allowed to store persistent data.
   */
  bool isPersistentStorageAllowed(in ACString nodeId);

  /**
   * Returns the directory to use as the base for storing data about GMPs.
   */
  nsIFile getStorageDir();

};