public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } parser.GetUShort(Attribute.SubSequenceIdentifer); parser.GetByte(Attribute.LayerNumber); byte flags = parser.GetByte(); bool durationFlag = (flags & 0x80) == 0x80; bool avgRateFlag = (flags & 0x40) == 0x40; byte reserved = (byte)(flags & 0x3F); parser.AddAttribute(new FormattedAttribute <Attribute, bool>(Attribute.DurationFlag, durationFlag)); parser.AddAttribute(new FormattedAttribute <Attribute, bool>(Attribute.AvgRateFlag, avgRateFlag)); parser.AddAttribute(new FormattedAttribute <Attribute, byte>(Attribute.Reserved, reserved)); parser.CheckAttribute(Attribute.Reserved, reserved == 0, false); if (durationFlag) { parser.GetUInt(Attribute.Duration); } if (avgRateFlag) { parser.GetByte(Attribute.AccurateStatisticsFlag); parser.GetUShort(Attribute.AvgBitRate); parser.GetUShort(Attribute.AvgFrameRate); } parser.GetTable(Attribute.DependencyInfo, Attribute.NumReferences, NumberOfEntriesType.Byte, 32, () => new DependencyInfo(), parser.BytesRemaining); return(Valid); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } parser.GetUInt(Attribute.Version, "{0:X8}"); // TODO: the sequence of descriptors is taken (mostly) from ffmpeg // TODO: verify that this is the actual sequence seen in (all) 3GPP files BaseDescriptor descriptor = ReadDescriptor(parser); if (descriptor.Tag == DescriptorClassTag.ES_DescrTag) { parser.GetUShort(); // ID parser.GetByte(); // priority } else { parser.GetUShort(); // ID } descriptor = ReadDescriptor(parser); if (descriptor.Tag == DescriptorClassTag.DecoderConfigDescrTag) { parser.GetByte(Attribute.ObjectTypeIndication); // 0x20 Visual ISO/IEC 14496-2 parser.GetByte(Attribute.StreamType); parser.GetThreeBytes(Attribute.BufferSizeDB); // 3 bytes parser.GetUInt(Attribute.MaxBitrate); parser.GetUInt(Attribute.AvgBitrate); descriptor = ReadDescriptor(parser); if ((parser.Position + descriptor.Length) > parser.Length) { return(false); } if (descriptor.Tag == DescriptorClassTag.DecSpecificInfoTag) { // Extra data can be empty (0 bytes) if (descriptor.Length > 0) { ExtraData = parser.GetDataPacket(parser.Position, descriptor.Length); } Attributes.Add(new FormattedAttribute <Attribute, long>(Attribute.DecSpecificInfoSize, descriptor.Length)); } parser.Position += Math.Min(descriptor.Length, parser.Length - parser.Position); } return(this.Valid); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } parser.GetByte(Attribute.LayerNumber); parser.GetByte(Attribute.AccurateStatisticsFlag); parser.GetUShort(Attribute.AvgBitRate); parser.GetUShort(Attribute.AvgFrameRate); return(Valid); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } uint colorParameterType = parser.GetFourCC(Attribute.ColorParameterType); parser.CheckAttribute(Attribute.ColorParameterType, colorParameterType == "nclc".To4CC(), false); parser.GetUShort(Attribute.PrimariesIndex); parser.GetUShort(Attribute.TransferFunctionIndex); parser.GetUShort(Attribute.MatrixIndex); return(Valid); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } // Reserved (6x byte) for (int i = 0; i < 6; i++) { parser.GetByte(); } parser.GetUShort(Attribute.ReferenceIndex); parser.GetUShort(Attribute.PreDefined1); parser.GetUShort(Attribute.Reserved1); return(Valid); }
// See QuickTime File Format Specification, 2010-08-03, pg.1 private static void ParseTcmiAtom(QtParser parser, uint size) { long tcmiPosition = (parser.Position - 4); parser.AddAttribute(new FormattedAttribute <QtAtom.Attribute, uint>(QtAtom.Attribute.Size, size)); uint type = parser.GetFourCC(QtAtom.Attribute.Type); parser.CheckAttribute(QtAtom.Attribute.Type, type == Tcmi, false); parser.GetByte(QtAtom.Attribute.Version); parser.GetThreeBytes(QtAtom.Attribute.Flags); parser.GetUShort(Attribute.TextFont); parser.GetUShort(Attribute.TextFace); parser.GetUShort(Attribute.TextSize); parser.GetUShort(Attribute.TcmiReserved); parser.Parse(new Color(Attribute.TextColor)); parser.Parse(new Color(Attribute.BackgroundColor)); parser.GetPascalString(Attribute.FontName, 0); parser.CheckAttribute(QtAtom.Attribute.Size, size == (parser.Position - tcmiPosition), false); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } int colorTableSeed = parser.GetInt(Attribute.ColorTableSeed); parser.CheckAttribute(Attribute.ColorTableSeed, colorTableSeed == 0); ushort colorTableFlags = parser.GetUShort(Attribute.ColorTableFlags); parser.CheckAttribute(Attribute.ColorTableFlags, colorTableFlags == 0x8000); uint colorTableSize = parser.GetUShort(Attribute.ColorTableSize); colorTableSize++; // The color table size is zero-relative; 0 means there is one color in the array parser.GetTable(Attribute.ColorArray, Attribute.ColorTableSize, colorTableSize, 8, () => new Color(), parser.BytesRemaining); return(Valid); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } ushort regionSize = parser.GetUShort(Attribute.RegionSize); parser.Parse(new RegionBounderyBox()); parser.CheckAttribute(Attribute.RegionSize, regionSize == parser.BytesRemaining); if (Valid) { parser.GetHexDump(Attribute.ClippingRegionData, regionSize); } return(Valid); }
// for (i=0; i< numOfSequenceParameterSets; i++) { // unsigned int(16) sequenceParameterSetLength ; // bit(8*sequenceParameterSetLength) sequenceParameterSetNALUnit; // } // // for (i=0; i< numOfPictureParameterSets; i++) { // unsigned int(16) pictureParameterSetLength; // bit(8*pictureParameterSetLength) pictureParameterSetNALUnit; // } private static IDataPacket CreateNalUnit(QtParser parser, byte setCount, Attribute attribute) { long beginOffset = parser.Position; int totalSetLength = 0; for (int i = 0; i < setCount; i++) { ushort setLength = parser.GetUShort(); parser.Position += setLength; totalSetLength += setLength + sizeof(ushort); } if (totalSetLength > 0) { parser.Position = beginOffset; parser.GetHexDump <Attribute>(attribute, totalSetLength); return(parser.GetDataPacket(beginOffset, totalSetLength)); } return(null); }
public override bool Parse(QtParser parser) { if (!base.Parse(parser)) { return(false); } parser.GetDateTime(Attribute.CreationTime, "{0:F}"); parser.GetDateTime(Attribute.ModificationTime, "{0:F}"); TrackID = parser.GetUInt(Attribute.TrackID); parser.GetUInt(Attribute.Reserved1); parser.GetUInt(Attribute.Duration); parser.GetULong(Attribute.Reserved2); parser.GetShort(Attribute.Layer); parser.GetShort(Attribute.AlternateGroup); parser.GetFixed8_8(Attribute.Volume); parser.GetUShort(Attribute.Reserved3); parser.GetMatrix(Attribute.MatrixStructure); parser.GetFixed16_16(Attribute.TrackWidth); parser.GetFixed16_16(Attribute.TrackHeight); return(this.Valid); }