全部使用 interface (FlvProcessor)

This commit is contained in:
Genteure 2018-10-24 13:33:43 +08:00
parent 028e574733
commit 4e0791c35a
14 changed files with 147 additions and 59 deletions

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@ -10,6 +10,7 @@
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Autofac" Version="4.8.1" />
<PackageReference Include="NLog" Version="4.5.0-rc07" />
</ItemGroup>

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@ -24,8 +24,8 @@ namespace BililiveRecorder.Core
public bool IsMonitoring => StreamMonitor.receiver.IsConnected;
public bool IsRecording => flvStream != null;
public FlvStreamProcessor Processor; // FlvProcessor
public ObservableCollection<FlvClipProcessor> Clips { get; private set; } = new ObservableCollection<FlvClipProcessor>();
public IFlvStreamProcessor Processor; // FlvProcessor
public ObservableCollection<IFlvClipProcessor> Clips { get; private set; } = new ObservableCollection<IFlvClipProcessor>();
internal StreamMonitor StreamMonitor { get; }
private Settings _settings { get; }

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@ -10,6 +10,7 @@
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Autofac" Version="4.8.1" />
<PackageReference Include="NLog" Version="4.5.0-rc07" />
</ItemGroup>

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@ -1,26 +1,21 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace BililiveRecorder.FlvProcessor
namespace BililiveRecorder.FlvProcessor
{
public delegate void TagProcessedEvent(object sender, TagProcessedArgs e);
public class TagProcessedArgs
{
public FlvTag Tag;
public IFlvTag Tag;
}
public delegate void ClipFinalizedEvent(object sender, ClipFinalizedArgs e);
public class ClipFinalizedArgs
{
public FlvClipProcessor ClipProcessor;
public IFlvClipProcessor ClipProcessor;
}
public delegate void StreamFinalizedEvent(object sender, StreamFinalizedArgs e);
public class StreamFinalizedArgs
{
public FlvStreamProcessor StreamProcessor;
public IFlvStreamProcessor StreamProcessor;
}
}

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@ -2,22 +2,21 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace BililiveRecorder.FlvProcessor
{
public class FlvClipProcessor
public class FlvClipProcessor : IFlvClipProcessor
{
private static readonly Logger logger = LogManager.GetCurrentClassLogger();
public readonly FlvMetadata Header;
public readonly List<FlvTag> HTags;
public readonly List<FlvTag> Tags;
private int target = -1;
public IFlvMetadata Header { get; }
public List<IFlvTag> HTags { get; }
public List<IFlvTag> Tags { get; }
private readonly int target = -1;
public Func<string> GetFileName;
public Func<string> GetFileName { get; set; }
public FlvClipProcessor(FlvMetadata header, List<FlvTag> head, List<FlvTag> past, uint future)
public FlvClipProcessor(IFlvMetadata header, List<IFlvTag> head, List<IFlvTag> past, uint future)
{
Header = header;
HTags = head;
@ -27,7 +26,7 @@ namespace BililiveRecorder.FlvProcessor
Tags.Count, Tags[0].TimeStamp, Tags[Tags.Count - 1].TimeStamp, (Tags[Tags.Count - 1].TimeStamp - Tags[0].TimeStamp) / 1000d);
}
public void AddTag(FlvTag tag)
public void AddTag(IFlvTag tag)
{
Tags.Add(tag);
if (tag.TimeStamp >= target)

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@ -6,23 +6,29 @@ using System.Text;
namespace BililiveRecorder.FlvProcessor
{
public class FlvMetadata
public class FlvMetadata : IFlvMetadata
{
public IDictionary<string, object> Meta = new Dictionary<string, object>();
public IDictionary<string, object> Meta { get; set; } = new Dictionary<string, object>();
public static FlvMetadata Parse(byte[] data)
public FlvMetadata()
{
var m = new FlvMetadata
Meta["duration"] = 0.0;
Meta["lasttimestamp"] = 0.0;
}
public FlvMetadata(byte[] data)
{
Meta = _Decode(data);
if (!Meta.ContainsKey("duration"))
{
Meta = _Decode(data)
};
Meta["duration"] = 0.0;
}
if (!m.Meta.ContainsKey("duration"))
m.Meta["duration"] = 0.0;
if (!m.Meta.ContainsKey("lasttimestamp"))
m.Meta["lasttimestamp"] = 0.0;
return m;
if (!Meta.ContainsKey("lasttimestamp"))
{
Meta["lasttimestamp"] = 0.0;
}
}
public byte[] ToBytes()

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@ -1,18 +1,15 @@
using NLog;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
namespace BililiveRecorder.FlvProcessor
{
// TODO: 重构 Tag 解析流程
// TODO: 添加测试
// 注:下载时会按照 4 11 N bytes 下载
public class FlvStreamProcessor : IDisposable
public class FlvStreamProcessor : IFlvStreamProcessor
{
private static readonly Logger logger = LogManager.GetCurrentClassLogger();
@ -35,22 +32,22 @@ namespace BililiveRecorder.FlvProcessor
// 0x00, // the "0th" tag has a length of 0
};
public FlvMetadata Metadata = null;
public IFlvMetadata Metadata { get; set; } = null;
public event TagProcessedEvent TagProcessed;
public event StreamFinalizedEvent StreamFinalized;
public Func<string> GetFileName;
public Func<string> GetFileName { get; set; }
public uint Clip_Past = 90;
public uint Clip_Future = 30;
public uint Clip_Past { get; set; } = 90;
public uint Clip_Future { get; set; } = 30;
private readonly bool _noClip = false;
private bool _headerParsed = false;
private readonly List<FlvTag> HTags = new List<FlvTag>();
private readonly List<FlvTag> Tags = new List<FlvTag>();
private readonly List<IFlvTag> HTags = new List<IFlvTag>();
private readonly List<IFlvTag> Tags = new List<IFlvTag>();
private readonly MemoryStream _buffer = new MemoryStream();
private readonly MemoryStream _data = new MemoryStream();
private FlvTag currentTag = null;
private object _writelock = new object();
private IFlvTag currentTag = null;
private readonly object _writelock = new object();
private bool Finallized = false;
private readonly FileStream _fs;
@ -85,7 +82,9 @@ namespace BililiveRecorder.FlvProcessor
public void AddBytes(byte[] data)
{
lock (_writelock)
{
_AddBytes(data);
}
}
private void _AddBytes(byte[] data)
@ -104,10 +103,15 @@ namespace BililiveRecorder.FlvProcessor
}
var r = new bool[FLV_HEADER_BYTES.Length];
for (int i = 0; i < FLV_HEADER_BYTES.Length; i++)
{
r[i] = data[i] == FLV_HEADER_BYTES[i];
}
bool succ = r.All(x => x);
if (!succ)
{
throw new NotSupportedException("Not FLV Stream or Not Supported"); // TODO: custom Exception.
}
_headerParsed = true;
_AddBytes(data.Skip(FLV_HEADER_BYTES.Length).ToArray());
@ -140,7 +144,7 @@ namespace BililiveRecorder.FlvProcessor
}
}
private void _TagCreated(FlvTag tag)
private void _TagCreated(IFlvTag tag)
{
if (Metadata == null)
{
@ -149,7 +153,7 @@ namespace BililiveRecorder.FlvProcessor
_fs?.Write(FLV_HEADER_BYTES, 0, FLV_HEADER_BYTES.Length);
_fs?.Write(new byte[] { 0, 0, 0, 0, }, 0, 4);
Metadata = FlvMetadata.Parse(tag.Data);
Metadata = new FlvMetadata(tag.Data);
// TODO: 添加录播姬标记、录制信息
@ -202,7 +206,10 @@ namespace BililiveRecorder.FlvProcessor
{
tag.TimeStamp -= BaseTimeStamp; // 修复时间戳
if (tag.TimeStamp < 0)
{
tag.TimeStamp = 0;
}
MaxTimeStamp = Math.Max(MaxTimeStamp, tag.TimeStamp);
}
else
@ -221,7 +228,9 @@ namespace BililiveRecorder.FlvProcessor
LasttimeRemovedTimestamp = MaxTimeStamp;
int max_remove_index = Tags.FindLastIndex(x => x.IsVideoKeyframe && ((MaxTimeStamp - x.TimeStamp) > (Clip_Past * SEC_TO_MS)));
if (max_remove_index > 0)
{
Tags.RemoveRange(0, max_remove_index);
}
// Tags.RemoveRange(0, max_remove_index + 1 - 1);
// 给将来的备注:这里是故意 + 1 - 1 的,因为要保留选中的那个关键帧, + 1 就把关键帧删除了
}
@ -242,7 +251,7 @@ namespace BililiveRecorder.FlvProcessor
_buffer.Write(data, 0, data.Length);
long dataLen = _buffer.Position;
_buffer.Position = 0;
FlvTag tag = new FlvTag();
IFlvTag tag = new FlvTag();
// Previous Tag Size
_buffer.Read(b, 0, 4);
@ -272,7 +281,7 @@ namespace BililiveRecorder.FlvProcessor
_AddBytes(rest);
}
public FlvClipProcessor Clip()
public IFlvClipProcessor Clip()
{
// 如果禁用 clip 功能 或者 已经结束处理了
if (_noClip || Finallized)
@ -284,7 +293,7 @@ namespace BililiveRecorder.FlvProcessor
lock (_writelock)
{
logger.Info("剪辑处理中,将会保存过去 {0} 秒和将来 {1} 秒的直播流", (Tags[Tags.Count - 1].TimeStamp - Tags[0].TimeStamp) / 1000d, Clip_Future);
return new FlvClipProcessor(Metadata, HTags, new List<FlvTag>(Tags.ToArray()), Clip_Future);
return new FlvClipProcessor(Metadata, HTags, new List<IFlvTag>(Tags.ToArray()), Clip_Future);
}
}
}
@ -292,6 +301,7 @@ namespace BililiveRecorder.FlvProcessor
public void FinallizeFile()
{
if (!Finallized)
{
lock (_writelock)
{
try
@ -322,6 +332,7 @@ namespace BililiveRecorder.FlvProcessor
StreamFinalized?.Invoke(this, new StreamFinalizedArgs() { StreamProcessor = this });
}
}
}
}
#region IDisposable Support

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@ -1,22 +1,19 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace BililiveRecorder.FlvProcessor
{
public class FlvTag
public class FlvTag : IFlvTag
{
public TagType TagType = 0;
public int TagSize = 0;
public int TimeStamp = 0;
public byte[] StreamId = new byte[3];
public TagType TagType { get; set; } = 0;
public int TagSize { get; set; } = 0;
public int TimeStamp { get; set; } = 0;
public byte[] StreamId { get; set; } = new byte[3];
public bool IsVideoKeyframe => _IsVideoKeyframe != -1 ? _IsVideoKeyframe == 1 : 1 == (_IsVideoKeyframe = _ParseIsVideoKeyframe());
private int _IsVideoKeyframe = -1;
public byte[] Data = null;
public byte[] Data { get; set; } = null;
public byte[] ToBytes(bool useDataSize, int offset = 0)
{
@ -38,9 +35,14 @@ namespace BililiveRecorder.FlvProcessor
private int _ParseIsVideoKeyframe()
{
if (TagType != TagType.VIDEO)
{
return 0;
}
if (Data.Length < 1)
{
return -1;
}
const byte mask = 0b00001111;
const byte compare = 0b00011111;

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@ -0,0 +1,18 @@
using System;
using System.Collections.Generic;
namespace BililiveRecorder.FlvProcessor
{
public interface IFlvClipProcessor
{
IFlvMetadata Header { get; }
List<IFlvTag> HTags { get; }
List<IFlvTag> Tags { get; }
Func<string> GetFileName { get; set; }
void AddTag(IFlvTag tag);
void FinallizeFile();
event ClipFinalizedEvent ClipFinalized;
}
}

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@ -0,0 +1,10 @@
using System.Collections.Generic;
namespace BililiveRecorder.FlvProcessor
{
public interface IFlvMetadata
{
IDictionary<string, object> Meta { get; set; }
byte[] ToBytes();
}
}

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@ -0,0 +1,24 @@
using System;
namespace BililiveRecorder.FlvProcessor
{
public interface IFlvStreamProcessor : IDisposable
{
event TagProcessedEvent TagProcessed;
event StreamFinalizedEvent StreamFinalized;
IFlvMetadata Metadata { get; set; }
Func<string> GetFileName { get; set; }
uint Clip_Past { get; set; }
uint Clip_Future { get; set; }
int LasttimeRemovedTimestamp { get; }
int MaxTimeStamp { get; }
int BaseTimeStamp { get; }
int TagVideoCount { get; }
int TagAudioCount { get; }
void AddBytes(byte[] data);
IFlvClipProcessor Clip();
void FinallizeFile();
}
}

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@ -0,0 +1,17 @@
using System.IO;
namespace BililiveRecorder.FlvProcessor
{
public interface IFlvTag
{
TagType TagType { get; set; }
int TagSize { get; set; }
int TimeStamp { get; set; }
byte[] StreamId { get; set; }
bool IsVideoKeyframe { get; }
byte[] Data { get; set; }
byte[] ToBytes(bool useDataSize, int offset = 0);
void WriteTo(Stream stream, int offset = 0);
}
}

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@ -75,6 +75,9 @@
<SignAssembly>false</SignAssembly>
</PropertyGroup>
<ItemGroup>
<Reference Include="Autofac, Version=4.8.1.0, Culture=neutral, PublicKeyToken=17863af14b0044da, processorArchitecture=MSIL">
<HintPath>..\packages\Autofac.4.8.1\lib\net45\Autofac.dll</HintPath>
</Reference>
<Reference Include="Microsoft.WindowsAPICodePack, Version=1.1.2.0, Culture=neutral, processorArchitecture=MSIL">
<HintPath>..\packages\WindowsAPICodePack-Core.1.1.2\lib\Microsoft.WindowsAPICodePack.dll</HintPath>
</Reference>

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@ -1,5 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="Autofac" version="4.8.1" targetFramework="net462" />
<package id="NLog" version="4.5.0-rc07" targetFramework="net462" />
<package id="NLog.Config" version="4.5.0-rc07" targetFramework="net462" />
<package id="NLog.Schema" version="4.5.0-rc07" targetFramework="net462" />