lgladsden/jellyfin-server
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #5220 from Bond-009/hdhomerun

Browse Source
This commit is contained in:
Bond-009 2021-03-13 15:05:18 +01:00 committed by GitHub
commit b755c25217
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 253 additions and 189 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

262
Emby.Server.Implementations/LiveTv/TunerHosts/HdHomerun/HdHomerunManager.cs
View File

@ -2,6 +2,7 @@
using System; using System;
using System.Buffers; using System.Buffers;
using System.Buffers.Binary;
using System.Collections.Generic; using System.Collections.Generic;
using System.Globalization; using System.Globalization;
using System.Net; using System.Net;
@ -10,6 +11,7 @@ using System.Text;
using System.Text.RegularExpressions; using System.Text.RegularExpressions;
using System.Threading; using System.Threading;
using System.Threading.Tasks; using System.Threading.Tasks;
using MediaBrowser.Common;
using MediaBrowser.Controller.LiveTv; using MediaBrowser.Controller.LiveTv;
namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
@ -120,13 +122,13 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
private static async Task<bool> CheckTunerAvailability(NetworkStream stream, int tuner, CancellationToken cancellationToken) private static async Task<bool> CheckTunerAvailability(NetworkStream stream, int tuner, CancellationToken cancellationToken)
{ {
var lockkeyMsg = CreateGetMessage(tuner, "lockkey");
await stream.WriteAsync(lockkeyMsg, 0, lockkeyMsg.Length, cancellationToken).ConfigureAwait(false);
byte[] buffer = ArrayPool<byte>.Shared.Rent(8192); byte[] buffer = ArrayPool<byte>.Shared.Rent(8192);
try try
{ {
int receivedBytes = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false); var msgLen = WriteGetMessage(buffer, tuner, "lockkey");
await stream.WriteAsync(buffer.AsMemory(0, msgLen), cancellationToken).ConfigureAwait(false);
int receivedBytes = await stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
ParseReturnMessage(buffer, receivedBytes, out string returnVal); ParseReturnMessage(buffer, receivedBytes, out string returnVal);
@ -166,9 +168,9 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
_activeTuner = i; _activeTuner = i;
var lockKeyString = string.Format(CultureInfo.InvariantCulture, "{0:d}", lockKeyValue); var lockKeyString = string.Format(CultureInfo.InvariantCulture, "{0:d}", lockKeyValue);
var lockkeyMsg = CreateSetMessage(i, "lockkey", lockKeyString, null); var lockkeyMsgLen = WriteSetMessage(buffer, i, "lockkey", lockKeyString, null);
await stream.WriteAsync(lockkeyMsg, 0, lockkeyMsg.Length, cancellationToken).ConfigureAwait(false); await stream.WriteAsync(buffer.AsMemory(0, lockkeyMsgLen), cancellationToken).ConfigureAwait(false);
int receivedBytes = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false); int receivedBytes = await stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
// parse response to make sure it worked // parse response to make sure it worked
if (!ParseReturnMessage(buffer, receivedBytes, out _)) if (!ParseReturnMessage(buffer, receivedBytes, out _))
@ -178,9 +180,9 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
foreach (var command in commands.GetCommands()) foreach (var command in commands.GetCommands())
{ {
var channelMsg = CreateSetMessage(i, command.Item1, command.Item2, lockKeyValue); var channelMsgLen = WriteSetMessage(buffer, i, command.Item1, command.Item2, lockKeyValue);
await stream.WriteAsync(channelMsg, 0, channelMsg.Length, cancellationToken).ConfigureAwait(false); await stream.WriteAsync(buffer.AsMemory(0, channelMsgLen), cancellationToken).ConfigureAwait(false);
receivedBytes = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false); receivedBytes = await stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
// parse response to make sure it worked // parse response to make sure it worked
if (!ParseReturnMessage(buffer, receivedBytes, out _)) if (!ParseReturnMessage(buffer, receivedBytes, out _))
@ -191,10 +193,10 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
} }
var targetValue = string.Format(CultureInfo.InvariantCulture, "rtp://{0}:{1}", localIp, localPort); var targetValue = string.Format(CultureInfo.InvariantCulture, "rtp://{0}:{1}", localIp, localPort);
var targetMsg = CreateSetMessage(i, "target", targetValue, lockKeyValue); var targetMsgLen = WriteSetMessage(buffer, i, "target", targetValue, lockKeyValue);
await stream.WriteAsync(targetMsg, 0, targetMsg.Length, cancellationToken).ConfigureAwait(false); await stream.WriteAsync(buffer.AsMemory(0, targetMsgLen), cancellationToken).ConfigureAwait(false);
receivedBytes = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false); receivedBytes = await stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
// parse response to make sure it worked // parse response to make sure it worked
if (!ParseReturnMessage(buffer, receivedBytes, out _)) if (!ParseReturnMessage(buffer, receivedBytes, out _))
@ -232,9 +234,9 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
{ {
foreach (var command in commandList) foreach (var command in commandList)
{ {
var channelMsg = CreateSetMessage(_activeTuner, command.Item1, command.Item2, _lockkey); var channelMsgLen = WriteSetMessage(buffer, _activeTuner, command.Item1, command.Item2, _lockkey);
await stream.WriteAsync(channelMsg, 0, channelMsg.Length, cancellationToken).ConfigureAwait(false); await stream.WriteAsync(buffer.AsMemory(0, channelMsgLen), cancellationToken).ConfigureAwait(false);
int receivedBytes = await stream.ReadAsync(buffer, 0, buffer.Length, cancellationToken).ConfigureAwait(false); int receivedBytes = await stream.ReadAsync(buffer, cancellationToken).ConfigureAwait(false);
// parse response to make sure it worked // parse response to make sure it worked
if (!ParseReturnMessage(buffer, receivedBytes, out _)) if (!ParseReturnMessage(buffer, receivedBytes, out _))
@ -265,17 +267,17 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
{ {
var stream = client.GetStream(); var stream = client.GetStream();
var releaseTarget = CreateSetMessage(_activeTuner, "target", "none", lockKeyValue);
await stream.WriteAsync(releaseTarget, 0, releaseTarget.Length).ConfigureAwait(false);
var buffer = ArrayPool<byte>.Shared.Rent(8192); var buffer = ArrayPool<byte>.Shared.Rent(8192);
try try
{ {
await stream.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false); var releaseTargetLen = WriteSetMessage(buffer, _activeTuner, "target", "none", lockKeyValue);
var releaseKeyMsg = CreateSetMessage(_activeTuner, "lockkey", "none", lockKeyValue); await stream.WriteAsync(buffer.AsMemory(0, releaseTargetLen)).ConfigureAwait(false);
await stream.ReadAsync(buffer).ConfigureAwait(false);
var releaseKeyMsgLen = WriteSetMessage(buffer, _activeTuner, "lockkey", "none", lockKeyValue);
_lockkey = null; _lockkey = null;
await stream.WriteAsync(releaseKeyMsg, 0, releaseKeyMsg.Length).ConfigureAwait(false); await stream.WriteAsync(buffer.AsMemory(0, releaseKeyMsgLen)).ConfigureAwait(false);
await stream.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false); await stream.ReadAsync(buffer).ConfigureAwait(false);
} }
finally finally
{ {
@ -283,109 +285,76 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
} }
} }
private static byte[] CreateGetMessage(int tuner, string name) internal static int WriteGetMessage(Span<byte> buffer, int tuner, string name)
{ {
var byteName = Encoding.UTF8.GetBytes(string.Format(CultureInfo.InvariantCulture, "/tuner{0}/{1}\0", tuner, name)); var byteName = string.Format(CultureInfo.InvariantCulture, "/tuner{0}/{1}", tuner, name);
int messageLength = byteName.Length + 10; // 4 bytes for header + 4 bytes for crc + 2 bytes for tag name and length int offset = WriteHeaderAndPayload(buffer, byteName);
return FinishPacket(buffer, offset);
var message = new byte[messageLength];
int offset = InsertHeaderAndName(byteName, messageLength, message);
bool flipEndian = BitConverter.IsLittleEndian;
// calculate crc and insert at the end of the message
var crcBytes = BitConverter.GetBytes(HdHomerunCrc.GetCrc32(message, messageLength - 4));
if (flipEndian)
{
Array.Reverse(crcBytes);
}
Buffer.BlockCopy(crcBytes, 0, message, offset, 4);
return message;
} }
private static byte[] CreateSetMessage(int tuner, string name, string value, uint? lockkey) private static int WriteSetMessage(Span<byte> buffer, int tuner, string name, string value, uint? lockkey)
{ {
var byteName = Encoding.UTF8.GetBytes(string.Format(CultureInfo.InvariantCulture, "/tuner{0}/{1}\0", tuner, name)); var byteName = string.Format(CultureInfo.InvariantCulture, "/tuner{0}/{1}", tuner, name);
var byteValue = Encoding.UTF8.GetBytes(string.Format(CultureInfo.InvariantCulture, "{0}\0", value)); int offset = WriteHeaderAndPayload(buffer, byteName);
buffer[offset++] = GetSetValue;
offset += WriteNullTerminatedString(buffer.Slice(offset), value);
int messageLength = byteName.Length + byteValue.Length + 12;
if (lockkey.HasValue) if (lockkey.HasValue)
{ {
messageLength += 6; buffer[offset++] = GetSetLockkey;
} buffer[offset++] = 4;
BinaryPrimitives.WriteUInt32BigEndian(buffer.Slice(offset), lockkey.Value);
var message = new byte[messageLength];
int offset = InsertHeaderAndName(byteName, messageLength, message);
bool flipEndian = BitConverter.IsLittleEndian;
message[offset++] = GetSetValue;
message[offset++] = Convert.ToByte(byteValue.Length);
Buffer.BlockCopy(byteValue, 0, message, offset, byteValue.Length);
offset += byteValue.Length;
if (lockkey.HasValue)
{
message[offset++] = GetSetLockkey;
message[offset++] = 4;
var lockKeyBytes = BitConverter.GetBytes(lockkey.Value);
if (flipEndian)
{
Array.Reverse(lockKeyBytes);
}
Buffer.BlockCopy(lockKeyBytes, 0, message, offset, 4);
offset += 4; offset += 4;
} }
// calculate crc and insert at the end of the message return FinishPacket(buffer, offset);
var crcBytes = BitConverter.GetBytes(HdHomerunCrc.GetCrc32(message, messageLength - 4));
if (flipEndian)
{
Array.Reverse(crcBytes);
}
Buffer.BlockCopy(crcBytes, 0, message, offset, 4);
return message;
} }
private static int InsertHeaderAndName(byte[] byteName, int messageLength, byte[] message) internal static int WriteNullTerminatedString(Span<byte> buffer, ReadOnlySpan<char> payload)
{ {
// check to see if we need to flip endiannes int len = Encoding.UTF8.GetBytes(payload, buffer.Slice(1)) + 1;
bool flipEndian = BitConverter.IsLittleEndian;
int offset = 0;
// create header bytes // TODO: variable length: this can be 2 bytes if len > 127
var getSetBytes = BitConverter.GetBytes(GetSetRequest); // Write length in front of value
var msgLenBytes = BitConverter.GetBytes((ushort)(messageLength - 8)); // Subtrace 4 bytes for header and 4 bytes for crc buffer[0] = Convert.ToByte(len);
if (flipEndian) // null-terminate
{ buffer[len++] = 0;
Array.Reverse(getSetBytes);
Array.Reverse(msgLenBytes);
}
// insert header bytes into message return len;
Buffer.BlockCopy(getSetBytes, 0, message, offset, 2); }
offset += 2;
Buffer.BlockCopy(msgLenBytes, 0, message, offset, 2);
offset += 2;
// insert tag name and length private static int WriteHeaderAndPayload(Span<byte> buffer, ReadOnlySpan<char> payload)
message[offset++] = GetSetName; {
message[offset++] = Convert.ToByte(byteName.Length); // Packet type
BinaryPrimitives.WriteUInt16BigEndian(buffer, GetSetRequest);
// insert name string // We write the payload length at the end
Buffer.BlockCopy(byteName, 0, message, offset, byteName.Length); int offset = 4;
offset += byteName.Length;
// Tag
buffer[offset++] = GetSetName;
// Payload length + data
int strLen = WriteNullTerminatedString(buffer.Slice(offset), payload);
offset += strLen;
return offset; return offset;
} }
private static int FinishPacket(Span<byte> buffer, int offset)
{
// Payload length
BinaryPrimitives.WriteUInt16BigEndian(buffer.Slice(2), (ushort)(offset - 4));
// calculate crc and insert at the end of the message
var crc = Crc32.Compute(buffer.Slice(0, offset));
BinaryPrimitives.WriteUInt32LittleEndian(buffer.Slice(offset), crc);
return offset + 4;
}
private static bool ParseReturnMessage(byte[] buf, int numBytes, out string returnVal) private static bool ParseReturnMessage(byte[] buf, int numBytes, out string returnVal)
{ {
returnVal = string.Empty; returnVal = string.Empty;
@ -442,90 +411,5 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun
returnVal = Encoding.UTF8.GetString(buf, offset, valueLength - 1); // remove null terminator returnVal = Encoding.UTF8.GetString(buf, offset, valueLength - 1); // remove null terminator
return true; return true;
} }
private static class HdHomerunCrc
{
private static uint[] crc_table = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d };
public static uint GetCrc32(byte[] bytes, int numBytes)
{
var hash = 0xffffffff;
for (var i = 0; i < numBytes; i++)
{
hash = (hash >> 8) ^ crc_table[(hash ^ bytes[i]) & 0xff];
}
var tmp = ~hash & 0xffffffff;
var b0 = tmp & 0xff;
var b1 = (tmp >> 8) & 0xff;
var b2 = (tmp >> 16) & 0xff;
var b3 = (tmp >> 24) & 0xff;
return (b0 << 24) | (b1 << 16) | (b2 << 8) | b3;
}
}
} }
} }

89
MediaBrowser.Common/Crc32.cs Normal file
View File

@ -0,0 +1,89 @@
#pragma warning disable CS1591
using System;
namespace MediaBrowser.Common
{
public static class Crc32
{
private static readonly uint[] _crcTable =
{
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
public static uint Compute(ReadOnlySpan<byte> bytes)
{
var crc = 0xffffffff;
var len = bytes.Length;
for (var i = 0; i < len; i++)
{
crc = (crc >> 8) ^ _crcTable[(bytes[i] ^ crc) & 0xff];
}
return ~crc;
}
}
}

33
tests/Jellyfin.Common.Tests/Crc32Tests.cs Normal file
View File

@ -0,0 +1,33 @@
using System;
using System.Text;
using MediaBrowser.Common;
using Xunit;
namespace Jellyfin.Common.Tests
{
public static class Crc32Tests
{
[Fact]
public static void Compute_Empty_Zero()
{
Assert.Equal<uint>(0, Crc32.Compute(Array.Empty<byte>()));
}
[Theory]
[InlineData(0x414fa339, "The quick brown fox jumps over the lazy dog")]
public static void Compute_Valid_Success(uint expected, string data)
{
Assert.Equal(expected, Crc32.Compute(Encoding.UTF8.GetBytes(data)));
}
[Theory]
[InlineData(0x414fa339, "54686520717569636B2062726F776E20666F78206A756D7073206F76657220746865206C617A7920646F67")]
[InlineData(0x190a55ad, "0000000000000000000000000000000000000000000000000000000000000000")]
[InlineData(0xff6cab0b, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF")]
[InlineData(0x91267e8a, "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F")]
public static void Compute_ValidHex_Success(uint expected, string data)
{
Assert.Equal(expected, Crc32.Compute(Convert.FromHexString(data)));
}
}
}

58
tests/Jellyfin.Server.Implementations.Tests/LiveTv/HdHomerunManagerTests.cs Normal file
View File

@ -0,0 +1,58 @@
using System;
using Emby.Server.Implementations.LiveTv.TunerHosts.HdHomerun;
using Xunit;
namespace Jellyfin.Server.Implementations.Tests.LiveTv
{
public class HdHomerunManagerTests
{
[Fact]
public void WriteNullTerminatedString_Empty_Success()
{
ReadOnlySpan<byte> expected = stackalloc byte[]
{
1, 0
};
Span<byte> buffer = stackalloc byte[128];
int len = HdHomerunManager.WriteNullTerminatedString(buffer, string.Empty);
Assert.Equal(expected.Length, len);
Assert.True(expected.SequenceEqual(buffer.Slice(0, len)));
}
[Fact]
public void WriteNullTerminatedString_Valid_Success()
{
ReadOnlySpan<byte> expected = stackalloc byte[]
{
10, (byte)'T', (byte)'h', (byte)'e', (byte)' ', (byte)'q', (byte)'u', (byte)'i', (byte)'c', (byte)'k', 0
};
Span<byte> buffer = stackalloc byte[128];
int len = HdHomerunManager.WriteNullTerminatedString(buffer, "The quick");
Assert.Equal(expected.Length, len);
Assert.True(expected.SequenceEqual(buffer.Slice(0, len)));
}
[Fact]
public void WriteGetMessage_Valid_Success()
{
ReadOnlySpan<byte> expected = stackalloc byte[]
{
0, 4,
0, 12,
3,
10, (byte)'/', (byte)'t', (byte)'u', (byte)'n', (byte)'e', (byte)'r', (byte)'0', (byte)'/', (byte)'N', 0,
0xc0, 0xc9, 0x87, 0x33
};
Span<byte> buffer = stackalloc byte[128];
int len = HdHomerunManager.WriteGetMessage(buffer, 0, "N");
Assert.Equal(expected.Length, len);
Assert.True(expected.SequenceEqual(buffer.Slice(0, len)));
}
}
}