QM_GetVideoMediaCompression

QM_GetVideoMediaCompression(movieRef; trackID; codecType; codecQuality; codecDepth):error
	movieRef	Longint	Movie reference
	trackID	Longint	Track ID
	codecType	String4	Codec type
	codecQuality	Longint	Compression quality
	codecDepth	Longint	Color depth
	error	Longint	Error result

Returns the compression options currently used when adding samples to a video track.

Parameter movieRef is the reference to the movie instance. The movie reference must have been previously obtained with a call to QM_NewMovieFromFile.

Parameter trackID is the ID of the track.

Parameter codecType receives the four character identifier of the compressor (codec) component.

Parameter codecQuality receives the compression quality.

Parameter codecDepth receives the color depth at which video samples are compressed. A value of 0 means that the compressor component chooses the best depth for the video samples.

QMedia sets the default compression options to the following values:

Codec:	"jpeg"
Quality:	qm_NormalQuality (512)
Depth:	0 (use best depth)

Example

`Get the compression settings of video track $trackID

C_STRING(4;$codec)
C_LONGINT($quality;$depth)

$err:=QM_GetVideoMediaCompression ($movie;$trackID;$codec;$quality;0)

Related commands

QM_SetVideoMediaCompression	Changes the compression options of new video samples.
QM_GetCodecs	Returns the list of all QuickTime codecs