LCOV - code coverage report
Current view: top level - media/libstagefright/binding - SinfParser.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 32 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 5 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* This Source Code Form is subject to the terms of the Mozilla Public
       2             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       3             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       4             : 
       5             : #include "mozilla/Unused.h"
       6             : #include "mp4_demuxer/SinfParser.h"
       7             : #include "mp4_demuxer/AtomType.h"
       8             : #include "mp4_demuxer/Box.h"
       9             : 
      10             : namespace mp4_demuxer {
      11             : 
      12           0 : Sinf::Sinf(Box& aBox)
      13             :   : mDefaultIVSize(0)
      14           0 :   , mDefaultEncryptionType()
      15             : {
      16           0 :   SinfParser parser(aBox);
      17           0 :   if (parser.GetSinf().IsValid()) {
      18           0 :     *this = parser.GetSinf();
      19             :   }
      20           0 : }
      21             : 
      22           0 : SinfParser::SinfParser(Box& aBox)
      23             : {
      24           0 :   for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
      25           0 :     if (box.IsType("schm")) {
      26           0 :       ParseSchm(box);
      27           0 :     } else if (box.IsType("schi")) {
      28           0 :       ParseSchi(box);
      29             :     }
      30             :   }
      31           0 : }
      32             : 
      33             : void
      34           0 : SinfParser::ParseSchm(Box& aBox)
      35             : {
      36           0 :   BoxReader reader(aBox);
      37             : 
      38           0 :   if (reader->Remaining() < 8) {
      39           0 :     return;
      40             :   }
      41             : 
      42           0 :   mozilla::Unused << reader->ReadU32(); // flags -- ignore
      43           0 :   mSinf.mDefaultEncryptionType = reader->ReadU32();
      44             : }
      45             : 
      46             : void
      47           0 : SinfParser::ParseSchi(Box& aBox)
      48             : {
      49           0 :   for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
      50           0 :     if (box.IsType("tenc")) {
      51           0 :       ParseTenc(box);
      52             :     }
      53             :   }
      54           0 : }
      55             : 
      56             : void
      57           0 : SinfParser::ParseTenc(Box& aBox)
      58             : {
      59           0 :   BoxReader reader(aBox);
      60             : 
      61           0 :   if (reader->Remaining() < 24) {
      62           0 :     return;
      63             :   }
      64             : 
      65           0 :   mozilla::Unused << reader->ReadU32(); // flags -- ignore
      66             : 
      67           0 :   uint32_t isEncrypted = reader->ReadU24();
      68           0 :   mSinf.mDefaultIVSize = reader->ReadU8();
      69           0 :   memcpy(mSinf.mDefaultKeyID, reader->Read(16), 16);
      70             : }
      71             : 
      72             : }

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