コード例 #1
0
void
Moof::ParseTraf(Box& aBox, Trex& aTrex, Mvhd& aMvhd, Mdhd& aMdhd, Edts& aEdts, Sinf& aSinf, bool aIsAudio)
{
  Tfhd tfhd(aTrex);
  Tfdt tfdt;
  for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
    if (box.IsType("tfhd")) {
      tfhd = Tfhd(box, aTrex);
    } else if (!aTrex.mTrackId || tfhd.mTrackId == aTrex.mTrackId) {
      if (box.IsType("tfdt")) {
        tfdt = Tfdt(box);
      } else if (box.IsType("saiz")) {
        mSaizs.AppendElement(Saiz(box, aSinf.mDefaultEncryptionType));
      } else if (box.IsType("saio")) {
        mSaios.AppendElement(Saio(box, aSinf.mDefaultEncryptionType));
      }
    }
  }
  if (aTrex.mTrackId && tfhd.mTrackId != aTrex.mTrackId) {
    return;
  }
  if (!tfdt.IsValid()) {
    LOG(Moof, "Invalid tfdt dependency");
    return;
  }
  // Now search for TRUN boxes.
  uint64_t decodeTime = tfdt.mBaseMediaDecodeTime;
  for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
    if (box.IsType("trun")) {
      if (ParseTrun(box, tfhd, aMvhd, aMdhd, aEdts, &decodeTime, aIsAudio)) {
        mValid = true;
      } else {
        mValid = false;
        break;
      }
    }
  }
}
コード例 #2
0
ファイル: MoofParser.cpp プロジェクト: luke-chang/gecko-1
void
Moof::ParseTraf(Box& aBox, Trex& aTrex, Mvhd& aMvhd, Mdhd& aMdhd, Edts& aEdts, Sinf& aSinf, uint64_t* aDecodeTime, bool aIsAudio)
{
  MOZ_ASSERT(aDecodeTime);
  Tfhd tfhd(aTrex);
  Tfdt tfdt;

  for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
    if (box.IsType("tfhd")) {
      tfhd = Tfhd(box, aTrex);
    } else if (!aTrex.mTrackId || tfhd.mTrackId == aTrex.mTrackId) {
      if (box.IsType("tfdt")) {
        tfdt = Tfdt(box);
      } else if (box.IsType("sgpd")) {
        Sgpd sgpd(box);
        if (sgpd.IsValid() && sgpd.mGroupingType == "seig") {
          mFragmentSampleEncryptionInfoEntries.Clear();
          if (!mFragmentSampleEncryptionInfoEntries.AppendElements(sgpd.mEntries, mozilla::fallible)) {
            LOG(Moof, "OOM");
            return;
          }
        }
      } else if (box.IsType("sbgp")) {
        Sbgp sbgp(box);
        if (sbgp.IsValid() && sbgp.mGroupingType == "seig") {
          mFragmentSampleToGroupEntries.Clear();
          if (!mFragmentSampleToGroupEntries.AppendElements(sbgp.mEntries, mozilla::fallible)) {
            LOG(Moof, "OOM");
            return;
          }
        }
      } else if (box.IsType("saiz")) {
        if (!mSaizs.AppendElement(Saiz(box, aSinf.mDefaultEncryptionType), mozilla::fallible)) {
          LOG(Moof, "OOM");
          return;
        }
      } else if (box.IsType("saio")) {
        if (!mSaios.AppendElement(Saio(box, aSinf.mDefaultEncryptionType), mozilla::fallible)) {
          LOG(Moof, "OOM");
          return;
        }
      }
    }
  }
  if (aTrex.mTrackId && tfhd.mTrackId != aTrex.mTrackId) {
    return;
  }
  // Now search for TRUN boxes.
  uint64_t decodeTime =
    tfdt.IsValid() ? tfdt.mBaseMediaDecodeTime : *aDecodeTime;
  for (Box box = aBox.FirstChild(); box.IsAvailable(); box = box.Next()) {
    if (box.IsType("trun")) {
      if (ParseTrun(box, tfhd, aMvhd, aMdhd, aEdts, &decodeTime, aIsAudio).isOk()) {
        mValid = true;
      } else {
        LOG(Moof, "ParseTrun failed");
        mValid = false;
        break;
      }
    }
  }
  *aDecodeTime = decodeTime;
}