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My Project
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#include <mmal_buffer.h>
Public Attributes | |
| struct MMAL_BUFFER_HEADER_T * | next |
| struct MMAL_BUFFER_HEADER_PRIVATE_T * | priv |
| uint32_t | cmd |
| uint8_t * | data |
| uint32_t | alloc_size |
| uint32_t | length |
| uint32_t | offset |
| uint32_t | flags |
| int64_t | pts |
| int64_t | dts |
| MMAL_BUFFER_HEADER_TYPE_SPECIFIC_T * | type |
| void * | user_data |
Definition of the buffer header structure. A buffer header does not directly carry the data to be passed to a component but instead it references the actual data using a pointer (and an associated length). It also contains an internal area which can be used to store command or metadata to be associated with the external data.
| uint32_t MMAL_BUFFER_HEADER_T::alloc_size |
Allocated size in bytes of payload buffer
| uint32_t MMAL_BUFFER_HEADER_T::cmd |
Defines what the buffer header contains. This is a FourCC with 0 as a special value meaning stream data
| uint8_t* MMAL_BUFFER_HEADER_T::data |
Pointer to the start of the payload buffer (should not be changed by component)
| int64_t MMAL_BUFFER_HEADER_T::dts |
Decode timestamp in microseconds (dts = pts, except in the case of video streams with B frames). MMAL_TIME_UNKNOWN is used when the dts is unknown.
| uint32_t MMAL_BUFFER_HEADER_T::flags |
Flags describing properties of a buffer header (see Buffer header flags)
| uint32_t MMAL_BUFFER_HEADER_T::length |
Number of bytes currently used in the payload buffer (starting from offset)
Used to link several buffer headers together
| uint32_t MMAL_BUFFER_HEADER_T::offset |
Offset in bytes to the start of valid data in the payload buffer
Data private to the framework
| int64_t MMAL_BUFFER_HEADER_T::pts |
Presentation timestamp in microseconds. MMAL_TIME_UNKNOWN is used when the pts is unknown.
Type specific data that's associated with a payload buffer
Field reserved for use by the client
1.7.6.1
