SmartTranscoder

Command Line Arguments

–help, -h

Print the help to the console and exit.

–version, -v

Print the version to the console and exit.

–config-file, -c

The path to the main configuration file.

–console-log

Tells service to ignore the –log-config and –log-file parameters and print the log to the console with the default formatting.

–log-config, -l

Default value:  smtrc.log.json

The path to the logging configuration file.

–log-file

Default value:  smtrc_%Y-%m-%d_%H-%M-%S.%N.log

Log file name pattern. This option is ignored if –log-config is specified.

The following variables can be used in the file name:

• Y — year,
• m — month,
• d — day,
• H — hour,
• M — minute,
• S — second,
• N — the file number among files with the same name.

If no variables are defined, the file will be rotated only on service restart.

Configuration File

The default location of the configuration file is: /opt/smartlabs/smartmedia/transcoder/config/config.json

Basic Parameters

threads, integer 

Default value: 4

Number of working threads.

interface, string 

Default value: 0.0.0.0

The interface to listen on for incoming connections.

port, integer 

The port for incoming FastCGI connections.

use_qsv, boolean 

Default value: false

The flag that allows you to enable the use of Intel QuickSync Video hardware acceleration for video transcoding. To use QSV, you need to make sure that the CPU and GPU of the server support this technology and that the Intel MediaSDK library is correctly installed in the system. More information can be found in the Intel MediaSDK documentation.

box_parser_buffer_size, data size

Default value: 5M

The size of the buffer used for parsing of MP4-boxes, which are transferred between the network transcoder and SmartMEDIA Conveyor service.

Each mediasample should fit in the buffer, thus this value must be more than the maximum I-frame size within the video stream. In case of a high-bitrate stream, such as UHD/4K streams, this value might need to be increased.

idle_interval_sec, integer 

Default value: 300

The period of client inactivity (in seconds), after which the TCP connection and the transcoding session are closed to save resources.

Configuration example

JSON

{    “interface” : “192.168.1.56”,    “port” : 7783,    “threads” : 4,    “use_qsv” : true,    “box_parser_buffer_size” : “10M” }