A conformant image sink component, which takes pixel data on the single input
port and writes out an image file. Multiple data formats are
accepted, but not all image codecs accept all data formats. The image
codec is determined by the filename suffix. YUV420 and YUV422 are
supported by the JPEG codec. Various RGB formats are supported by
other image codecs.
| Port | Index | Notes
|
| 30 | OMX_IndexParamPortDefinition
| Setting this controls the size of the image that will be given to the
component. eColorFormat should be YUV420 packed planar, YUV422
packed planar, RGB565, RGB888, or RGBA32. nSliceHeight should
be 16, or nFrameHeight rounded up to the next multiple of
16. nStride should be a multiple of 32 for YUV formats. For
RGB formats, the width should first be rounded up to a multiple of 16,
then multiplied by the bytes per pixel to calculate nStride.
This port supports setting the port definition to both image and video
domains, although it will convert video domain parameters to the
advertised image domain.
|
| OMX_IndexParamImagePortFormat
| Query / set the image port form. This port supports a few
uncompressed pixel formats.
|
| OMX_IndexParamQFactor
| Query / set the quality factor for the encoded image. This is only
supported by the JPEG codec.
|
| OMX_IndexConfigMetadataItem
| Set metadata to be included in the output file. Currently only the
JPEG codec supports including metadata. The component must be in
loaded state. eScopeMode must be
OMX_MetadataScopePortLevel. nScopeSpecifier must be
30. eKeyCharset must be ASCII, Binary, or
unknown. nKey must start with "EXIF.",
"IFD0." or "GPS." and be a valid EXIF property allowed
within that table. Supported tags are listed in the component
documentation for the image_decode component.
Some exif tags may be added with image capture data from a directly
connected camera component if they have not already been set.
|
| OMX_IndexConfigBrcmSyncOutput
| Forces a pause until any pending output has been flushed to the SD card.
|
| OMX_IndexParamBrcmRetainMemory
| Controls memory allocation during state transitions. EXIF should
always be disabled when using this option, as the size of the EXIF
tags can change unpredictably.
|
| OMX_IndexParamBrcmDisableEXIF
| Disables generation of EXIF tags.
|
| OMX_IndexParamBrcmThumbnail
| Sets the properties for the thumbnail generation. The component must
be in loaded state. Currently only the JPEG codec supports this and
only if EXIF generation is also enabled.
|
| | OMX_IndexParamContentURI
| Setting this parameter supplies a filename to the component, to which
it will write the file. Currently the format of the URI is assumed to
be a file that the component can directly access using the file
system. However, the file system can support remote mounted file
systems.
|
| OMX_IndexParamBrcmRetainMemory
| If enabled, the component will hold on to any memory allocated, even
when going from IDLE to LOADED.
|
| OMX_IndexParamBrcmEnableIJGTableScaling
| Query / set whether we use standard IJG quality tables when using the
JPG encoder.
|
| OMX_IndexParamAsynchronousOutput
| Query / set whether this component can write files asynchronously.
|
| OMX_IndexConfigAsynchronousFailureURI
| Query for the URI being used when an asynchronous error was generated.
|
| OMX_IndexConfigBrcmIOPerfStats
| Query for statistics about I/O (e.g. file media) performance. Set whether or not
this component captures these statistics (off by default) by changing the
bEnabled field. Other fields are read-only and will be ignored upon set.
|