AM_MPEGSYSTEMTYPE structure (mpegtype.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The AM_MPEGSYSTEMTYPE structure defines the format block for an MPEG-1 system stream. This structure is used when the formattype member of the AM_MEDIA_TYPE structure is FORMAT_MPEG1System.
Syntax
typedef struct tagAM_MPEGSYSTEMTYPE {
DWORD dwBitRate;
DWORD cStreams;
AM_MPEGSTREAMTYPE Streams[1];
} AM_MPEGSYSTEMTYPE;
Members
dwBitRate
Bits per second.
cStreams
Number of streams.
Streams[1]
List AM_MPEGSTREAMTYPE structures that describe the elementary streams. The number of elements in the list is given by the cStream member. The size of each AM_MPEGSTREAMTYPE structure is variable. Use the AM_MPEGSTREAMTYPE_ELEMENTLENGTH macro to calculate the size of each structure.
Remarks
The Streams member contains a list of AM_MPEGSTREAMTYPE structures. The size of each AM_MPEGSTREAMTYPE structure is aligned to an 8-byte boundary. Given a pointer to an AM_MPEGSTREAMTYPE structure in list, use the AM_MPEGSTREAMTYPE_NEXT macro to get a pointer to the next structure.
Requirements
| Requirement | Value |
|---|---|
| Header | mpegtype.h (include Dshow.h) |