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Get the data format metadata from the metadata handle
#include <mme/metadata.h> const void *mme_metadata_extract_data( const mme_metadata_hdl_t *metadata, const char *type, uint32_t flags, size_t *length );
metadata
The function mme_metadata_extract_data() returns the format of the metadata retrieved by mme_ms_metadata_get() and placed in the metadata handle mme_metadata_hdl_t. Metadata formats are defined by the METADATA_FORMAT_* enumerated values.
None delivered.
This function validates that the metadata handle isn't NULL. It doesn't block.
Data in the character string, or NULL if no data is found (errno is set).
QNX Neutrino
Safety: | |
---|---|
Interrupt handler | No |
Signal handler | No |
Thread | Yes |
METADATA_*, mme_metadata_alloc(), mme_metadata_extract_string(), mme_metadata_extract_unsigned(), mme_metadata_hdl_t, mme_ms_metadata_done(), mme_ms_metadata_get()
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