Web Call Server 5.1 - EN
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REST query

REST query example

REST response example

Response states

Description

/vod/startup

Code Block
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{
 "uri":"vod-live://sample.mp4",
 "localStreamName": "test"
}

409 - Conflict

500 - Internal error


Capture VOD stream from file


/vod/find
Code Block
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{
 "localStreamName": "test"

}
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[
    {
        "localMediaSessionId": "29ec3236-1093-42bb-88d6-d4ac37af3ac0",
        "localStreamName": "test",
        "uri": "vod-live://sample.mp4",
        "status": "PROCESSED_LOCAL",
        "hasAudio": true,
        "hasVideo": true,
        "record": false
    }
]

200 – OK

404 – not found

Find VOD streams by criteria

/vod/find_all


Code Block
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[
    {
        "localMediaSessionId": "29ec3236-1093-42bb-88d6-d4ac37af3ac0",
        "localStreamName": "test",
        "uri": "vod-live://sample.mp4",
        "status": "PROCESSED_LOCAL",
        "hasAudio": true,
        "hasVideo": true,
        "record": false
    }
]

200 – OK

404 – not found

Find all VOD streams

/vod/terminate

Code Block
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{
 "uri":"vod://sample.mp4",
 "localStreamName": "test"
}

200 - Stream is stopped

404 - Stream not found

Stop VOD stream

...

Code Block
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ffmpeg -i bad.mp4 -preset ultrafast -acodec copy -vcodec h264 -g 24 -bf 0 good.mp4

3. When VOD is captured from a long-duration file, server process can terminate with Out of memory in case of exceeding maximum number of regions of virtual memory (vm.max_map_count)

Symptoms: server process terminates; "Map failed" in server log and in error*.log

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19:30:53,277 ERROR DefaultMp4SampleList - Thread-34 java.io.IOException: Map failed
    at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:940)
    at com.googlecode.mp4parser.FileDataSourceImpl.map(FileDataSourceImpl.java:62)
    at com.googlecode.mp4parser.BasicContainer.getByteBuffer(BasicContainer.java:223)
    at com.googlecode.mp4parser.authoring.samples.DefaultMp4SampleList$SampleImpl.asByteBuffer(DefaultMp4SampleList.java:204)
    at com.flashphoner.media.F.A.A.A$1.A(Unknown Source)
    at com.flashphoner.media.M.B.C.D(Unknown Source)
    at com.flashphoner.server.C.A.B.A(Unknown Source)
    at com.flashphoner.server.C.A.B.C(Unknown Source)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.OutOfMemoryError: Map failed
    at sun.nio.ch.FileChannelImpl.map0(Native Method)
    at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:937)
    ... 8 more
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Event: 1743.157 Thread 0x00007fc480375000 Exception <a 'java/lang/OutOfMemoryError': Map failed> (0x00000000a1d750b0) thrown at [/HUDSON/workspace/8-2-build-linux-amd64/jdk8u161/10277/hotspot/src/share/vm/prims/jni.cpp, line 735]

Solution: increase maximum number of regions of virtual memory

Code Block
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sysctl -w vm.max_map_count=262144