Tries to find what type of data is contained in the given data
, the assumption being that the data represents the beginning
of the stream or file.
All available typefinders will be called on the data in order of rank. If a typefinding function returns a probability of
MAXIMUM, typefinding is stopped immediately and the found caps will be returned right away. Otherwise, all
available typefind functions will the tried, and the caps with the highest probability will be returned, or null
if the
content of data
could not be identified.
When extension
is not null
, this function will first try the typefind functions for the given extension, which
might speed up the typefinding in many cases.
Free-function: gst_caps_unref
obj |
object doing the typefinding, or |
data |
* a pointer with data to typefind |
extension |
extension of the media, or |
prob |
location to store the probability of the found caps, or |
size |
the size of |
the Caps corresponding to the data, or |