FFmpegKit iOS / macOS / tvOS API  4.4
FFmpegSession.m
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1 /*
2  * Copyright (c) 2021 Taner Sener
3  *
4  * This file is part of FFmpegKit.
5  *
6  * FFmpegKit is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU Lesser General License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * FFmpegKit is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU Lesser General License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General License
17  * along with FFmpegKit. If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #import "ExecuteCallback.h"
21 #import "FFmpegSession.h"
22 #import "FFmpegKitConfig.h"
23 #import "LogCallback.h"
24 #import "StatisticsCallback.h"
25 
26 @implementation FFmpegSession {
27  StatisticsCallback _statisticsCallback;
28  NSMutableArray* _statistics;
29  NSRecursiveLock* _statisticsLock;
30 }
31 
32 + (void)initialize {
33  // EMPTY INITIALIZE
34 }
35 
36 - (instancetype)init:(NSArray*)arguments {
37 
38  self = [super init:arguments withExecuteCallback:nil withLogCallback:nil withLogRedirectionStrategy:[FFmpegKitConfig getLogRedirectionStrategy]];
39 
40  if (self) {
41  _statisticsCallback = nil;
42  _statistics = [[NSMutableArray alloc] init];
43  _statisticsLock = [[NSRecursiveLock alloc] init];
44  }
45 
46  return self;
47 }
48 
49 - (instancetype)init:(NSArray*)arguments withExecuteCallback:(ExecuteCallback)executeCallback {
50 
51  self = [super init:arguments withExecuteCallback:executeCallback withLogCallback:nil withLogRedirectionStrategy:[FFmpegKitConfig getLogRedirectionStrategy]];
52 
53  if (self) {
54  _statisticsCallback = nil;
55  _statistics = [[NSMutableArray alloc] init];
56  _statisticsLock = [[NSRecursiveLock alloc] init];
57  }
58 
59  return self;
60 }
61 
62 - (instancetype)init:(NSArray*)arguments withExecuteCallback:(ExecuteCallback)executeCallback withLogCallback:(LogCallback)logCallback withStatisticsCallback:(StatisticsCallback)statisticsCallback {
63 
64  self = [super init:arguments withExecuteCallback:executeCallback withLogCallback:logCallback withLogRedirectionStrategy:[FFmpegKitConfig getLogRedirectionStrategy]];
65 
66  if (self) {
67  _statisticsCallback = statisticsCallback;
68  _statistics = [[NSMutableArray alloc] init];
69  _statisticsLock = [[NSRecursiveLock alloc] init];
70  }
71 
72  return self;
73 }
74 
75 - (instancetype)init:(NSArray*)arguments withExecuteCallback:(ExecuteCallback)executeCallback withLogCallback:(LogCallback)logCallback withStatisticsCallback:(StatisticsCallback)statisticsCallback withLogRedirectionStrategy:(LogRedirectionStrategy)logRedirectionStrategy {
76 
77  self = [super init:arguments withExecuteCallback:executeCallback withLogCallback:logCallback withLogRedirectionStrategy:logRedirectionStrategy];
78 
79  if (self) {
80  _statisticsCallback = statisticsCallback;
81  _statistics = [[NSMutableArray alloc] init];
82  _statisticsLock = [[NSRecursiveLock alloc] init];
83  }
84 
85  return self;
86 }
87 
88 - (StatisticsCallback)getStatisticsCallback {
89  return _statisticsCallback;
90 }
91 
92 - (NSArray*)getAllStatisticsWithTimeout:(int)waitTimeout {
93  [self waitForAsynchronousMessagesInTransmit:waitTimeout];
94 
95  if ([self thereAreAsynchronousMessagesInTransmit]) {
96  NSLog(@"getAllStatisticsWithTimeout was called to return all statistics but there are still statistics being transmitted for session id %ld.", [self getSessionId]);
97  }
98 
99  return [self getStatistics];
100 }
101 
102 - (NSArray*)getAllStatistics {
103  return [self getAllStatisticsWithTimeout:AbstractSessionDefaultTimeoutForAsynchronousMessagesInTransmit];
104 }
105 
106 - (NSArray*)getStatistics {
107  [_statisticsLock lock];
108  NSArray* statisticsCopy = [_statistics copy];
109  [_statisticsLock unlock];
110 
111  return statisticsCopy;
112 }
113 
114 - (Statistics*)getLastReceivedStatistics {
115  Statistics* lastStatistics = nil;
116 
117  [_statisticsLock lock];
118  if ([_statistics count] > 0) {
119  lastStatistics = [_statistics objectAtIndex:0];
120  }
121  [_statisticsLock unlock];
122 
123  return lastStatistics;
124 }
125 
126 - (void)addStatistics:(Statistics*)statistics {
127  [_statisticsLock lock];
128  [_statistics addObject:statistics];
129  [_statisticsLock unlock];
130 }
131 
132 - (BOOL)isFFmpeg {
133  return true;
134 }
135 
136 - (BOOL)isFFprobe {
137  return false;
138 }
139 
140 @end
141 
void(^ ExecuteCallback)(id< Session > session)
static StatisticsCallback statisticsCallback
NSRecursiveLock * _statisticsLock
Definition: FFmpegSession.m:29
NSMutableArray * _statistics
Definition: FFmpegSession.m:26
void(^ LogCallback)(Log *log)
Definition: LogCallback.h:31
void(^ StatisticsCallback)(Statistics *statistics)
LogRedirectionStrategy getLogRedirectionStrategy()