web_stream_play

Starts playing a media stream.

C Language

int web_stream_play( "ID=<n>", "PlayingDuration=<seconds>", ["Speed=<n>",] LAST );

ExampleStream Functions

Argument Description
IDThe identifier passed to web_stream_open.
PlayingDurationThe length of time to play in seconds. If not passed, the entire stream is played.
If the play time is longer than the step download timeout in the runtime settings, the step fails.
SpeedThe play speed in multiples of the normal rate (1). The supported multiples are 0.5, 1.0, 1.5, and 2.0. Default = 1
LAST Required marker for the end of the argument list.

Return Values

This function returns LR_PASS (0) on success, and LR_FAIL (1) on failure.

Parameterization

Standard parameterization is not available for this function.

General Information

The web_stream_play starts playing a media stream.

This function is not recorded. You can insert it manually into your script.

Example

This is an example of a web streaming script:

Action()

{

      /**

      HTML5 Video

      /*/

      web_stream_open("ID=1", "URL=http://my_server/streaming-test/Video2/Class%20-%206.mp4", "EventReportCB=PrintBytes", "Protocol=HTTP", "StreamBufferingTimeout=38", LAST);

      web_stream_set_param_double("1",SPEED, 2.0);

      web_stream_set_param_int("1", BANDWIDTH, 2000000);

      web_stream_set_param_int("1", BUFFERING_TIMEOUT, 60);

 

      web_stream_get_state_string("1", SERVER_IP, "ServerIP");

      lr_output_message("IP:, %s",lr_eval_string("{ServerIP}"));

      lr_output_message("Movie Length : %lf",web_stream_get_param_double("1", Duration));

 

      /***

      Play a video. Seek forward,seek backward, seek from the begining, pause, and stop.

      **/

      //Play for 30 sec

 

      lr_think_time(15);

      lr_start_transaction("HTTP Stream");

 

      web_stream_play("ID=1", "PlayingDuration=30", "Speed=1.5", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_pause("ID=1","PausingDuration=20", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_play("ID=1", "PlayingDuration=10", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_seek("ID=1", "TimeOffset=11", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_play("ID=1", "PlayingDuration=10", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_seek("ID=1", "RelativeOffset=90", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_play("ID=1", "PlayingDuration=10", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_seek("ID=1", "RelativeOffset=-17", LAST);

      lr_vuser_status_message("Current time in movie:%lf", web_stream_get_param_double("1", CURRENT_TIME));

 

      web_stream_stop("ID=1", LAST);

 

      lr_end_transaction("HTTP Stream", LR_AUTO);

 

      web_stream_close("ID=1", LAST);

 

      return 0;

}