public void AddOneSample(StreamDataBlockInfo data, uint timeScale, uint defSize, uint defFlags, ref ulong currMdatOffset)
{
// at this point the samples List should have been created
TrackFragmentRunSample sample = new TrackFragmentRunSample();
sample.SampleCompositionTimeOffset = 0; // FIXME: let's see whether we can get by without setting this composition time offset
// careful with overflow
ulong product = ((ulong)data.SliceDuration) * ((ulong)timeScale);
sample.SampleDuration = (uint)(product / (ulong)TimeSpan.FromSeconds(1.0).Ticks);
this.Duration += sample.SampleDuration;
if (defFlags == 0)
{
sample.SampleFlags = 0; // FIXME: we are not setting the sample flags at all
}
if (defSize == 0)
{
sample.SampleSize = (uint)data.SliceSize;
currMdatOffset += sample.SampleSize;
}
else
{
currMdatOffset += defSize;
}
this.Samples.Add(sample);
}
public override void Write(BoxWriter writer)
{
using (new SizeCalculator(this, writer)) {
base.Write(writer);
writer.WriteUInt32(SampleCount);
if (EnumUtils.IsBitSet <TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.DataOffsetPresent))
{
writer.WriteUInt32(DataOffset);
}
if (EnumUtils.IsBitSet <TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.FirstSampleFlagsPresent))
{
writer.WriteUInt32(FirstSampleFlags);
}
for (int i = 0; i < this.SampleCount; i++)
{
TrackFragmentRunSample item = Samples[i];
item.Write(writer, base.Flags);
}
}
}
public override string ToString()
{
StringBuilder xml = new StringBuilder();
xml.Append(base.ToString());
if (EnumUtils.IsBitSet <TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.FirstSampleFlagsPresent))
{
xml.Append("<firstsampleflags>").Append(FirstSampleFlags).Append("</firstsampleflags>");
}
xml.Append("<samplecount>").Append(SampleCount).Append("</samplecount>");
xml.Append("<samples>");
for (int i = 0; i < this.SampleCount; i++)
{
TrackFragmentRunSample item = Samples[i];
xml.Append(item.ToString());
}
xml.Append("</samples>");
xml.Append("</box>");
return(xml.ToString());
}
/// <summary>
/// Read
/// NOTE: FirstSampleFlags and the flags in TrackFragmentRunSample are as follows:
/// bit(6) reserved=0; // 6 bits reserved
/// unsigned int(2) sample_depends_on; // 2 bits used as int
/// unsigned int(2) sample_is_depended_on; // 2 bits used as int
/// unsigned int(2) sample_has_redundancy; // 2 bits used as int
/// bit(3) sample_padding_value; // 3 bits
/// bit(1) sample_is_difference_sample; // 1 bit i.e. when 1 signals a non-key or non-sync sample
/// unsigned int(16) sample_degradation_priority; // 16 bits, total of 32 bits
/// </summary>
/// <param name="reader"></param>
public override void Read(BoxReader reader)
{
using (new SizeChecker(this, reader)) {
base.Read(reader);
this.SampleCount = reader.ReadUInt32();
if (EnumUtils.IsBitSet <TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.DataOffsetPresent))
{
this.DataOffset = reader.ReadUInt32();
}
if (EnumUtils.IsBitSet <TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.FirstSampleFlagsPresent))
{
this.FirstSampleFlags = reader.ReadUInt32();
}
this.Samples = new List <TrackFragmentRunSample>((int)this.SampleCount);
for (int i = 0; i < this.SampleCount; i++)
{
TrackFragmentRunSample item = new TrackFragmentRunSample();
item.Read(reader, base.Flags);
this.Samples.Add(item);
this.Duration += item.SampleDuration;
}
}
}
public void AddOneSample(StreamDataBlockInfo data, uint timeScale, uint defSize, uint defFlags, ref ulong currMdatOffset)
{
// at this point the samples List should have been created
TrackFragmentRunSample sample = new TrackFragmentRunSample();
sample.SampleCompositionTimeOffset = 0; // FIXME: let's see whether we can get by without setting this composition time offset
// careful with overflow
ulong product = ((ulong)data.SliceDuration) * ((ulong)timeScale);
sample.SampleDuration = (uint)(product / (ulong)TimeSpan.FromSeconds(1.0).Ticks);
this.Duration += sample.SampleDuration;
if (defFlags == 0)
sample.SampleFlags = 0; // FIXME: we are not setting the sample flags at all
if (defSize == 0)
{
sample.SampleSize = (uint)data.SliceSize;
currMdatOffset += sample.SampleSize;
}
else currMdatOffset += defSize;
this.Samples.Add(sample);
}
/// <summary>
/// Read
/// NOTE: FirstSampleFlags and the flags in TrackFragmentRunSample are as follows:
/// bit(6) reserved=0; // 6 bits reserved
/// unsigned int(2) sample_depends_on; // 2 bits used as int
/// unsigned int(2) sample_is_depended_on; // 2 bits used as int
/// unsigned int(2) sample_has_redundancy; // 2 bits used as int
/// bit(3) sample_padding_value; // 3 bits
/// bit(1) sample_is_difference_sample; // 1 bit i.e. when 1 signals a non-key or non-sync sample
/// unsigned int(16) sample_degradation_priority; // 16 bits, total of 32 bits
/// </summary>
/// <param name="reader"></param>
public override void Read(BoxReader reader)
{
using (new SizeChecker(this, reader)) {
base.Read(reader);
this.SampleCount = reader.ReadUInt32();
if (EnumUtils.IsBitSet<TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.DataOffsetPresent))
{
this.DataOffset = reader.ReadUInt32();
}
if (EnumUtils.IsBitSet<TrackFragmentRunBoxFlags>((TrackFragmentRunBoxFlags)base.Flags, TrackFragmentRunBoxFlags.FirstSampleFlagsPresent))
{
this.FirstSampleFlags = reader.ReadUInt32();
}
this.Samples = new List<TrackFragmentRunSample>((int) this.SampleCount);
for (int i = 0; i < this.SampleCount; i++) {
TrackFragmentRunSample item = new TrackFragmentRunSample();
item.Read(reader, base.Flags);
this.Samples.Add(item);
this.Duration += item.SampleDuration;
}
}
}
