record

The record command starts recording data. VCR and waveform-audio devices recognize this command. Although digital-video devices and MIDI sequencers also recognize this command, the MCIAVI and MCISEQ drivers do not implement it.

record device recordflags  flags 
 

Parameters

device

Identifier of an MCI device. This identifier or alias is assigned when the device is opened.

recordflags

Flag for recording data. The following table lists device types that recognize the record command and the flags used by each type:

digitalvideo

at rectangle
audio stream stream
from position
hold

insert
overwrite
to position
video stream stream

sequencer

from position
insert

overwrite
to position

vcr

at time
from position
initialize

insert
overwrite
to position

waveaudio

from position
insert

overwrite
to position

The following table lists the flags that can be specified in the recordflags parameter and their meanings:

at rectangle

Specifies a rectangular region of the external input used as the source for the pixels compressed and saved. If not specified, the rectangle defaults to the rectangle specified for put “video”. When it is set differently from the “video” rectangle, the displayed image is not what is recorded.

at time

Indicates when the device should begin performing this command, or, if the device has been cued, when the cued command begins. For more information, see the cue command.

audio stream stream

Specifies the audio stream used for recording. If this flag is not specified and the file format does not define a default, it is recorded into the stream that is physically first.

from position

Specifies a starting position for the recording. If the “from” flag is not specified, the device starts recording at the current position.

hold

Freezes the image when recording has finished instead of showing live video. When recording stops, an automatic monitor “file” command is performed. To return to live video, issue the monitor “input” command.

initialize

Initialize the tape (media), which involves recording timecode (if possible) for blank video and audio. This command might take several hours if the entire tape must be initialized.

insert

Specifies that new data is added to the file at the current position.

overwrite

Specifies that new data will replace data in the file.

to position

Specifies an ending position for the recording. If the “to” flag is not specified, the device records until it receives a stop or pause command.

video stream stream

Specifies the video stream used for recording. If this is not specified and the file format does not define a default, then it is recorded into the stream that is physically first.

flags

Can be “wait”, “notify”, or both. For digital-video and VCR devices, “test” can also be specified. For more information about these flags, see The Wait, Notify, and Test Flags.

Return Values

Returns zero if successful or an error otherwise.

Remarks

The recording stops when a stop or pause command is issued. For the MCIWAVE driver, all data recorded after a file is opened is discarded if the file is closed without saving it.

Before issuing any commands that use position values, you should set the desired time format by using the set command. The tracks to be recorded are specified by the settimecode “record”, set “assemble record”, setvideo “record”, and setaudio “record” commands.

The following command starts recording at the current position:

record mysound

See Also

cue, monitor, pause, put, set, setaudio, settimecode, setvideo, stop