OpenMAXBellagio 0.9.3
Data Fields
OMX_BUFFERHEADERTYPE Struct Reference
Buffer Management

#include <OMX_Core.h>

Data Fields

OMX_U32 nSize
OMX_VERSIONTYPE nVersion
OMX_U8 * pBuffer
OMX_U32 nAllocLen
OMX_U32 nFilledLen
OMX_U32 nOffset
OMX_PTR pAppPrivate
OMX_PTR pPlatformPrivate
OMX_PTR pInputPortPrivate
OMX_PTR pOutputPortPrivate
OMX_HANDLETYPE hMarkTargetComponent
OMX_PTR pMarkData
OMX_U32 nTickCount
OMX_TICKS nTimeStamp
OMX_U32 nFlags
OMX_U32 nOutputPortIndex
OMX_U32 nInputPortIndex

Detailed Description

Definition at line 398 of file OMX_Core.h.

Field Documentation

OMX_HANDLETYPE OMX_BUFFERHEADERTYPE::hMarkTargetComponent

The component that will generate a mark event upon processing this buffer.

Definition at line 417 of file OMX_Core.h.

Referenced by omx_base_sink_twoport_BufferMgmtFunction(), and omx_base_source_twoport_BufferMgmtFunction().

OMX_U32 OMX_BUFFERHEADERTYPE::nAllocLen

size of the buffer allocated, in bytes

Definition at line 404 of file OMX_Core.h.

Referenced by base_port_AllocateBuffer(), and base_port_UseBuffer().

OMX_U32 OMX_BUFFERHEADERTYPE::nFilledLen

number of bytes currently in the buffer

Definition at line 405 of file OMX_Core.h.

Referenced by audiomixerEmptyBufferDone(), audiomixerFillBufferDone(), main(), omx_audio_mixer_component_BufferMgmtCallback(), omx_base_sink_twoport_BufferMgmtFunction(), omx_base_source_twoport_BufferMgmtFunction(), omx_clocksrc_BufferMgmtFunction(), omx_clocksrc_component_BufferMgmtCallback(), omx_video_scheduler_component_BufferMgmtCallback(), omx_video_scheduler_component_ClockPortHandleFunction(), omx_video_scheduler_component_port_SendBufferFunction(), omx_volume_component_BufferMgmtCallback(), volcEmptyBufferDone(), and volcFillBufferDone().

OMX_U32 OMX_BUFFERHEADERTYPE::nFlags

buffer specific flags

Definition at line 438 of file OMX_Core.h.

Referenced by audiomixerEmptyBufferDone(), omx_base_sink_twoport_BufferMgmtFunction(), omx_base_source_twoport_BufferMgmtFunction(), omx_video_scheduler_component_BufferMgmtCallback(), omx_video_scheduler_component_ClockPortHandleFunction(), omx_video_scheduler_component_port_SendBufferFunction(), and volcEmptyBufferDone().

OMX_U32 OMX_BUFFERHEADERTYPE::nInputPortIndex

The index of the input port (if any) using this buffer

Definition at line 441 of file OMX_Core.h.

Referenced by audiomixerEmptyBufferDone(), base_clock_port_SendBufferFunction(), base_port_AllocateBuffer(), base_port_AllocateTunnelBuffer(), base_port_ReturnBufferFunction(), base_port_SendBufferFunction(), base_port_UseBuffer(), omx_audio_mixer_component_BufferMgmtCallback(), omx_base_component_EmptyThisBuffer(), and omx_video_scheduler_component_port_SendBufferFunction().

OMX_U32 OMX_BUFFERHEADERTYPE::nOffset

start offset of valid data in bytes from the start of the buffer

Definition at line 407 of file OMX_Core.h.

Referenced by audiomixerEmptyBufferDone(), omx_video_scheduler_component_BufferMgmtCallback(), and volcEmptyBufferDone().

OMX_U32 OMX_BUFFERHEADERTYPE::nOutputPortIndex

The index of the output port (if any) using this buffer

Definition at line 439 of file OMX_Core.h.

Referenced by base_clock_port_SendBufferFunction(), base_port_AllocateBuffer(), base_port_AllocateTunnelBuffer(), base_port_ReturnBufferFunction(), base_port_SendBufferFunction(), base_port_UseBuffer(), omx_base_component_FillThisBuffer(), omx_clocksrc_component_BufferMgmtCallback(), and omx_video_scheduler_component_port_SendBufferFunction().

OMX_U32 OMX_BUFFERHEADERTYPE::nSize

size of the structure in bytes

Definition at line 400 of file OMX_Core.h.

OMX_U32 OMX_BUFFERHEADERTYPE::nTickCount

Optional entry that the component and application can update with a tick count when they access the component. This value should be in microseconds. Since this is a value relative to an arbitrary starting point, this value cannot be used to determine absolute time. This is an optional entry and not all components will update it.

Definition at line 422 of file OMX_Core.h.

OMX_TICKS OMX_BUFFERHEADERTYPE::nTimeStamp

Timestamp corresponding to the sample starting at the first logical sample boundary in the buffer. Timestamps of successive samples within the buffer may be inferred by adding the duration of the of the preceding buffer to the timestamp of the preceding buffer.

Definition at line 431 of file OMX_Core.h.

Referenced by omx_video_scheduler_component_ClockPortHandleFunction().

OMX_VERSIONTYPE OMX_BUFFERHEADERTYPE::nVersion

OMX specification version information

Definition at line 401 of file OMX_Core.h.

OMX_PTR OMX_BUFFERHEADERTYPE::pAppPrivate

pointer to any data the application wants to associate with this buffer

Definition at line 409 of file OMX_Core.h.

Referenced by base_port_AllocateBuffer(), and base_port_UseBuffer().

OMX_U8* OMX_BUFFERHEADERTYPE::pBuffer

Pointer to actual block of memory that is acting as the buffer

Definition at line 402 of file OMX_Core.h.

Referenced by audiomixerEmptyBufferDone(), audiomixerFillBufferDone(), base_clock_port_SendBufferFunction(), base_port_AllocateBuffer(), base_port_FreeBuffer(), base_port_FreeTunnelBuffer(), base_port_SendBufferFunction(), base_port_UseBuffer(), main(), omx_audio_mixer_component_BufferMgmtCallback(), omx_clocksrc_component_BufferMgmtCallback(), omx_video_scheduler_component_BufferMgmtCallback(), omx_video_scheduler_component_ClockPortHandleFunction(), omx_video_scheduler_component_port_SendBufferFunction(), omx_volume_component_BufferMgmtCallback(), volcEmptyBufferDone(), and volcFillBufferDone().

OMX_PTR OMX_BUFFERHEADERTYPE::pInputPortPrivate

pointer to any data the input port wants to associate with this buffer

Definition at line 413 of file OMX_Core.h.

OMX_PTR OMX_BUFFERHEADERTYPE::pMarkData

Application specific data associated with the mark sent on a mark event to disambiguate this mark from others.

Definition at line 419 of file OMX_Core.h.

Referenced by omx_base_sink_twoport_BufferMgmtFunction(), and omx_base_source_twoport_BufferMgmtFunction().

OMX_PTR OMX_BUFFERHEADERTYPE::pOutputPortPrivate

pointer to any data the output port wants to associate with this buffer

Definition at line 415 of file OMX_Core.h.

OMX_PTR OMX_BUFFERHEADERTYPE::pPlatformPrivate

pointer to any data the platform wants to associate with this buffer

Definition at line 411 of file OMX_Core.h.

Referenced by base_port_AllocateBuffer(), and base_port_UseBuffer().

The documentation for this struct was generated from the following file: