public override void Parse(BoxInfo bi, HDSBinaryReader br)
{
base.Parse(bi, br);
uint sizes = br.ReadByte();
bool longIdFields = ((sizes & AFRA_MASK_LONG_ID) > 0);
bool longOffsetFields = ((sizes & AFRA_MASK_LONG_OFFSET) > 0);
bool globalEntries = ((sizes & AFRA_MASK_GLOBAL_ENTRIES) > 0);
timeScale = br.ReadUInt32();
localRandomAccessEntries.Clear();
uint entryCount = br.ReadUInt32();
for (uint i = 0; i < entryCount; i++)
{
LocalRandomAccessEntry lrae = new LocalRandomAccessEntry();
lrae.Parse(br, longOffsetFields);
localRandomAccessEntries.Add(lrae);
}
globalRandomAccessEntries.Clear();
if (globalEntries)
{
entryCount = br.ReadUInt32();
for (int i = 0; i < entryCount; i++)
{
GlobalRandomAccessEntry grae = new GlobalRandomAccessEntry();
grae.Parse(br, longIdFields, longOffsetFields);
globalRandomAccessEntries.Add(grae);
}
}
}
public static BoxInfo getNextBoxInfo(HDSBinaryReader br)
{
if (!br.BaseStream.CanRead || (br.BytesAvailable < F4FConstants.FIELD_SIZE_LENGTH + F4FConstants.FIELD_TYPE_LENGTH))
{
return(null);
}
uint size = br.ReadUInt32();
string type = br.ReadUtfBytes(F4FConstants.FIELD_TYPE_LENGTH);
uint length = F4FConstants.FIELD_SIZE_LENGTH + F4FConstants.FIELD_TYPE_LENGTH;
if (size == F4FConstants.FLAG_USE_LARGE_SIZE)
{
size = (uint)br.ReadUInt64();
length += F4FConstants.FIELD_LARGE_SIZE_LENGTH;
}
if (type == F4FConstants.EXTENDED_TYPE)
{
// Read past the extended type.
br.Position += F4FConstants.FIELD_EXTENDED_TYPE_LENGTH;
length += F4FConstants.FIELD_EXTENDED_TYPE_LENGTH;
}
return(new BoxInfo(size, type, length));
}
public void Parse(HDSBinaryReader br, bool longIdFields, bool longOffsetFields)
{
time = br.ReadUInt64();
if (longIdFields)
{
segment = br.ReadUInt32();
fragment = br.ReadUInt32();
}
else
{
segment = br.ReadUInt16();
fragment = br.ReadUInt16();
}
if (longOffsetFields)
{
afraOffset = br.ReadUInt64();
offsetFromAfra = br.ReadUInt64();
}
else
{
afraOffset = br.ReadUInt32();
offsetFromAfra = br.ReadUInt32();
}
}
public static FLVTag Parse(HDSBinaryReader br)
{
if (!br.BaseStream.CanRead || (br.BytesAvailable <= TAG_HEADER_BYTE_COUNT))
{
return(null);
}
FLVTag tag;
byte b = br.ReadByte();
TagType type = (TagType)(b & 0x1f);
switch (type)
{
case TagType.AUDIO:
case TagType.AKAMAI_ENC_AUDIO: tag = new FLVTagAudio(type); break;
case TagType.VIDEO:
case TagType.AKAMAI_ENC_VIDEO: tag = new FLVTagVideo(type); break;
default: tag = new FLVTag(type); break;
}
tag.Filter = (b & 0x20) > 0;
uint dataSize = br.ReadUInt24();
tag.Timestamp = br.ReadUInt24() + (uint)(br.ReadByte() << 24);
uint StreamID = br.ReadUInt24();
tag.Data = br.ReadBytes((int)dataSize);
if (br.BytesAvailable > 3)
{
tag.SizeOfPreviousPacket = br.ReadUInt32();
}
return(tag);
}
public static List <Box> GetBoxes(byte[] data, string boxType = "")
{
List <Box> boxes = new List <Box>();
System.IO.MemoryStream stream = null;
try {
stream = new System.IO.MemoryStream(data);
using (HDSBinaryReader br = new HDSBinaryReader(stream)) {
stream = null;
BoxInfo bi = BoxInfo.getNextBoxInfo(br);
while (bi != null)
{
if (!string.IsNullOrEmpty(boxType) && bi.Type != boxType)
{
bi.Type = ""; // for skip other boxes
}
switch (bi.Type)
{
case F4FConstants.BOX_TYPE_ABST:
AdobeBootstrapBox abst = new AdobeBootstrapBox();
abst.Parse(bi, br);
boxes.Add(abst);
break;
case F4FConstants.BOX_TYPE_AFRA:
AdobeFragmentRandomAccessBox arfa = new AdobeFragmentRandomAccessBox();
arfa.Parse(bi, br);
boxes.Add(arfa);
break;
case F4FConstants.BOX_TYPE_MDAT:
MediaDataBox mdat = new MediaDataBox();
mdat.Parse(bi, br);
boxes.Add(mdat);
break;
default:
br.Position += bi.Size - bi.Length;
break;
}
bi = BoxInfo.getNextBoxInfo(br);
if (bi != null && bi.Size <= 0)
{
break;
}
}
}
} finally {
if (stream != null)
{
stream.Dispose();
}
}
return(boxes);
}
public void Parse(HDSBinaryReader br)
{
firstFragment = br.ReadUInt32();
durationAccrued = br.ReadUInt64();
duration = br.ReadUInt32();
if (duration == 0)
{
discontinuityIndicator = br.ReadByte();
}
}
public void Parse(HDSBinaryReader br, bool longOffsetFields)
{
time = br.ReadUInt64();
if (longOffsetFields)
{
offset = br.ReadUInt64();
}
else
{
offset = br.ReadUInt32();
}
}
public static void GetVideoAndAudioTags(TagsStore tagsStore, byte[] data)
{
MemoryStream stream = null;
try {
stream = new MemoryStream(data);
using (HDSBinaryReader br = new HDSBinaryReader(stream)) {
stream = null;
FLVTag tag = Parse(br);
while (tag != null)
{
// only audio or video and skipping small sized packet
if (tag.DataSize > 2 && (tag.Type == TagType.AUDIO || tag.Type == TagType.AKAMAI_ENC_AUDIO || tag.Type == TagType.VIDEO || tag.Type == TagType.AKAMAI_ENC_VIDEO))
{
if (!tagsStore.hasAudio && tag is FLVTagAudio audioTag)
{
tagsStore.hasAudio = true;
tagsStore.AudioFormat = audioTag.SoundFormat;
tagsStore.AudioRate = audioTag.SoundRate;
tagsStore.AudioChannels = audioTag.SoundChannels;
}
if (!tagsStore.hasVideo && tag is FLVTagVideo videoTag)
{
tagsStore.hasVideo = true;
tagsStore.VideoCodec = videoTag.CodecID;
}
tagsStore.Enqueue(tag);
if (tag.Timestamp > tagsStore.lastTS)
{
tagsStore.lastTS = tag.Timestamp;
}
if (!tagsStore.isAkamaiEncrypted && tag.IsAkamaiEncrypted)
{
tagsStore.isAkamaiEncrypted = true;
}
}
tag = Parse(br);
}
}
} finally {
if (stream != null)
{
stream.Dispose();
}
}
}
public override void Parse(BoxInfo bi, HDSBinaryReader br)
{
base.Parse(bi, br);
qualitySegmentURLModifiers.Clear();
uint qualityEntryCount = br.ReadByte();
for (uint i = 0; i < qualityEntryCount; i++)
{
qualitySegmentURLModifiers.Add(br.ReadString());
}
uint entryCount = br.ReadUInt32();
for (uint i = 0; i < entryCount; i++)
{
addSegmentFragmentPair(new SegmentFragmentPair(br.ReadUInt32(), br.ReadUInt32()));
}
}
public override void Parse(BoxInfo bi, HDSBinaryReader br)
{
base.Parse(bi, br);
timeScale = br.ReadUInt32();
qualitySegmentURLModifiers.Clear();
uint qualityEntryCount = br.ReadByte();
for (uint i = 0; i < qualityEntryCount; i++)
{
qualitySegmentURLModifiers.Add(br.ReadString());
}
uint entryCount = br.ReadUInt32();
for (uint i = 0; i < entryCount; i++)
{
FragmentDurationPair fdp = new FragmentDurationPair();
fdp.Parse(br);
fragmentDurationPairs.Add(fdp);
}
}
public static List <FLVTag> GetTags(byte[] data)
{
List <FLVTag> tags = new List <FLVTag>();
MemoryStream stream = null;
try {
stream = new MemoryStream(data);
using (HDSBinaryReader br = new HDSBinaryReader(stream)) {
stream = null;
FLVTag tag = Parse(br);
while (tag != null)
{
tags.Add(tag);
tag = Parse(br);
}
}
} finally {
if (stream != null)
{
stream.Dispose();
}
}
return(tags);
}
public override void Parse(BoxInfo bi, HDSBinaryReader br)
{
base.Parse(bi, br);
Version = br.ReadByte();
Flags = br.ReadUInt24();
}
public virtual void Parse(BoxInfo bi, HDSBinaryReader br)
{
Size = bi.Size;
Type = bi.Type;
Length = bi.Length;
}
public override void Parse(BoxInfo bi, HDSBinaryReader br)
{
base.Parse(bi, br);
data = br.ReadBytes((int)(Size - Length));
}
public override void Parse(BoxInfo bi, HDSBinaryReader br)
{
base.Parse(bi, br);
bootstrapVersion = br.ReadUInt32();
byte temp = br.ReadByte();
profile = (uint)(temp >> 6);
live = ((temp & 0x20) > 0);
update = ((temp & 0x01) > 0);
timeScale = br.ReadUInt32();
currentMediaTime = br.ReadUInt64();
smpteTimeCodeOffset = br.ReadUInt64();
movieIdentifier = br.ReadString();
serverBaseURLs.Clear();
int serverEntryCount = br.ReadByte();
for (int i = 0; i < serverEntryCount; i++)
{
serverBaseURLs.Add(br.ReadString());
}
qualitySegmentURLModifiers.Clear();
int qualityEntryCount = br.ReadByte();
for (int i = 0; i < qualityEntryCount; i++)
{
qualitySegmentURLModifiers.Add(br.ReadString());
}
drmData = br.ReadString();
metadata = br.ReadString();
segmentRunTables.Clear();
uint segmentRunTableCount = br.ReadByte();
for (uint i = 0; i < segmentRunTableCount; i++)
{
BoxInfo boxInfo = BoxInfo.getNextBoxInfo(br);
if (boxInfo == null)
{
break;
}
if (boxInfo.Type == F4FConstants.BOX_TYPE_ASRT)
{
AdobeSegmentRunTable asrt = new AdobeSegmentRunTable();
asrt.Parse(boxInfo, br);
segmentRunTables.Add(asrt);
}
}
fragmentRunTables.Clear();
uint fragmentRunTableCount = br.ReadByte();
for (uint i = 0; i < fragmentRunTableCount; i++)
{
BoxInfo boxInfo = BoxInfo.getNextBoxInfo(br);
if (boxInfo == null)
{
break;
}
if (boxInfo.Type == F4FConstants.BOX_TYPE_AFRT)
{
AdobeFragmentRunTable afrt = new AdobeFragmentRunTable();
afrt.Parse(boxInfo, br);
fragmentRunTables.Add(afrt);
}
}
// Check if live stream is still live
if (live && (fragmentRunTables.Count > 0) && ContentComplete())
{
live = false;
RemoveLastFragment();
}
}
