NAME

       dtk_video_exec - Start/stop/pause a video texture

SYNOPSIS

       #include <dtk_video.h>

       int dtk_video_exec(dtk_htex vid, int command, const void* arg);

DESCRIPTION

       This function changes the state (or playing position) of a video texture referenced by vid
       according to the value of command:

       DTKV_CMD_PLAY: Set the video to play. arg is interpreted as a
              pointer to a variable of type int whose non zero value  indicates  that  the  state
              change  is  asynchronous  and can be finished after the function returns. If arg is
              NULL, the change is performed synchronously.

       DTKV_CMD_PAUSE: Set the video to pause. arg is interpreted as a
              pointer to a variable of type int whose non zero value  indicates  that  the  state
              change  is  asynchronous  and can be finished after the function returns. If arg is
              NULL, the change is performed synchronously.

       DTKV_CMD_SEEK: Seek the video to the position specified by arg
              which is then interpreted as a pointer to a variable of type long representing  the
              position  in  milliseconds  from  the beginning of the video.  arg is allowed to be
              NULL. In that case, the video will be positioned at its start.

       vid must be a dynamic texture created by one of the  functions  dtk_create_video_*(3).  If
       the video was already in the requested state, the function will do nothing.

       If  the  video  is  created from the live source (webcam, network broadcast...), executing
       DTKV_CMD_SEEK will fail.

RETURN VALUE

       0 if the state has been changed or was already the one requested, -1 otherwise.

SEE ALSO

       dtk_load_video_file(3),           dtk_load_video_gst(3),           dtk_load_video_test(3),
       dtk_load_video_udp(3), dtk_load_video_tcp(3)