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The Tor Browser
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GMPTypes.ipdlh (3143B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3  * License, v. 2.0. If a copy of the MPL was not distributed with this
      4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 include "GMPMessageUtils.h";
      7 
      8 using cdm::EncryptionScheme from "GMPSanitizedExports.h";
      9 using GMPBufferType from "gmp-video-codec.h";
     10 
     11 namespace mozilla {
     12 namespace gmp {
     13 
     14 // GMP processes are associated with a specific node ID, so all GMP requests
     15 // which have the same node ID will use the same GMP process. Depending on the
     16 // use case, the node ID may be represented by a string (such as when used for
     17 // WebRTC) or by this structure, which is populated according to the origin
     18 // initiating the request. This structure will eventually be converted to a
     19 // string representing a node ID.  For this structure, the process ensures the
     20 // strings are unique for the combination of origin, top level origin and GMP
     21 // name.
     22 struct NodeIdParts {
     23   nsString mOrigin;
     24   nsString mTopLevelOrigin;
     25   nsString mGMPName;
     26 };
     27 
     28 // A NodeIdVariant should contain either
     29 // - A string representing an already computed node ID.
     30 // - A NodeIdParts representing a node ID that still needs to be computed by
     31 //   processing those parts.
     32 // This union is used to simplify passing of node ID information. Some
     33 // GMP use cases can hard code their node ID, while others need to compute
     34 // the node ID later. This lets us avoid having overloads to handle
     35 // the two different paths.
     36 union NodeIdVariant {
     37   nsCString;
     38   NodeIdParts;
     39 };
     40 
     41 struct GMPVideoEncodedFrameData {
     42   uint32_t mEncodedWidth;
     43   uint32_t mEncodedHeight;
     44   uint64_t mTimestamp;  // microseconds
     45   uint64_t mDuration;   // microseconds
     46   uint32_t mFrameType;
     47   uint32_t mSize;
     48   int32_t mTemporalLayerId;
     49   GMPBufferType mBufferType;
     50   bool mCompleteFrame;
     51 };
     52 
     53 struct GMPPlaneData {
     54   int32_t mOffset;
     55   int32_t mSize;
     56   int32_t mStride;
     57 };
     58 
     59 struct GMPVideoi420FrameData {
     60   GMPPlaneData mYPlane;
     61   GMPPlaneData mUPlane;
     62   GMPPlaneData mVPlane;
     63   int32_t mWidth;
     64   int32_t mHeight;
     65   uint64_t mTimestamp;  // microseconds
     66   uint64_t? mUpdatedTimestamp;  // microseconds
     67   uint64_t mDuration;   // microseconds
     68 };
     69 
     70 struct CDMInputBuffer {
     71   Shmem mData;
     72   uint8_t[] mKeyId;
     73   uint8_t[] mIV;
     74   int64_t mTimestamp;
     75   int64_t mDuration;
     76   uint32_t[] mClearBytes;
     77   uint32_t[] mCipherBytes;
     78   uint8_t mCryptByteBlock;
     79   uint8_t mSkipByteBlock;
     80   EncryptionScheme mEncryptionScheme;
     81 };
     82 
     83 struct CDMVideoDecoderConfig {
     84   uint32_t mCodec;
     85   uint32_t mProfile;
     86   uint32_t mFormat;
     87   int32_t mImageWidth;
     88   int32_t mImageHeight;
     89   uint8_t[] mExtraData;
     90   EncryptionScheme mEncryptionScheme;
     91 };
     92 
     93 struct CDMKeyInformation {
     94   uint8_t[] mKeyId;
     95   uint32_t mStatus;
     96   uint32_t mSystemCode;
     97 };
     98 
     99 struct CDMVideoPlane {
    100   uint32_t mPlaneOffset;
    101   uint32_t mStride;
    102 };
    103 
    104 struct CDMVideoFrame {
    105   uint32_t mFormat;
    106   int32_t mImageWidth;
    107   int32_t mImageHeight;
    108   CDMVideoPlane mYPlane;
    109   CDMVideoPlane mUPlane;
    110   CDMVideoPlane mVPlane;
    111   int64_t mTimestamp;
    112   int64_t mDuration;
    113 };
    114 
    115 }  // namespace gmp
    116 }  // namespace mozilla