1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using MediaBrowser.Model.Extensions;
using Microsoft.Extensions.Logging;
namespace MediaBrowser.Controller.MediaEncoding
{
public class JobLogger
{
private readonly CultureInfo _usCulture = new CultureInfo("en-US");
private readonly ILogger _logger;
public JobLogger(ILogger logger)
{
_logger = logger;
}
public async void StartStreamingLog(EncodingJobInfo state, Stream source, Stream target)
{
try
{
using (var reader = new StreamReader(source))
{
while (!reader.EndOfStream)
{
var line = await reader.ReadLineAsync().ConfigureAwait(false);
ParseLogLine(line, state);
var bytes = Encoding.UTF8.GetBytes(Environment.NewLine + line);
await target.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
await target.FlushAsync().ConfigureAwait(false);
}
}
}
catch (ObjectDisposedException)
{
//TODO Investigate and properly fix.
// Don't spam the log. This doesn't seem to throw in windows, but sometimes under linux
}
catch (Exception ex)
{
_logger.LogError(ex, "Error reading ffmpeg log");
}
}
private void ParseLogLine(string line, EncodingJobInfo state)
{
float? framerate = null;
double? percent = null;
TimeSpan? transcodingPosition = null;
long? bytesTranscoded = null;
int? bitRate = null;
var parts = line.Split(' ');
var totalMs = state.RunTimeTicks.HasValue
? TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalMilliseconds
: 0;
var startMs = state.BaseRequest.StartTimeTicks.HasValue
? TimeSpan.FromTicks(state.BaseRequest.StartTimeTicks.Value).TotalMilliseconds
: 0;
for (var i = 0; i < parts.Length; i++)
{
var part = parts[i];
if (string.Equals(part, "fps=", StringComparison.OrdinalIgnoreCase) &&
(i + 1 < parts.Length))
{
var rate = parts[i + 1];
if (float.TryParse(rate, NumberStyles.Any, _usCulture, out var val))
{
framerate = val;
}
}
else if (state.RunTimeTicks.HasValue &&
part.StartsWith("time=", StringComparison.OrdinalIgnoreCase))
{
var time = part.Split(new[] { '=' }, 2).Last();
if (TimeSpan.TryParse(time, _usCulture, out var val))
{
var currentMs = startMs + val.TotalMilliseconds;
var percentVal = currentMs / totalMs;
percent = 100 * percentVal;
transcodingPosition = val;
}
}
else if (part.StartsWith("size=", StringComparison.OrdinalIgnoreCase))
{
var size = part.Split(new[] { '=' }, 2).Last();
int? scale = null;
if (size.IndexOf("kb", StringComparison.OrdinalIgnoreCase) != -1)
{
scale = 1024;
size = size.Replace("kb", string.Empty, StringComparison.OrdinalIgnoreCase);
}
if (scale.HasValue)
{
if (long.TryParse(size, NumberStyles.Any, _usCulture, out var val))
{
bytesTranscoded = val * scale.Value;
}
}
}
else if (part.StartsWith("bitrate=", StringComparison.OrdinalIgnoreCase))
{
var rate = part.Split(new[] { '=' }, 2).Last();
int? scale = null;
if (rate.IndexOf("kbits/s", StringComparison.OrdinalIgnoreCase) != -1)
{
scale = 1024;
rate = rate.Replace("kbits/s", string.Empty, StringComparison.OrdinalIgnoreCase);
}
if (scale.HasValue)
{
if (float.TryParse(rate, NumberStyles.Any, _usCulture, out var val))
{
bitRate = (int)Math.Ceiling(val * scale.Value);
}
}
}
}
if (framerate.HasValue || percent.HasValue)
{
state.ReportTranscodingProgress(transcodingPosition, 0, percent, 0, bitRate);
}
}
}
}
|
