Callback for checking whether to abort blocking functions.
AVERROR_EXIT is returned in this case by the interrupted
function. During blocking operations, callback is called with
opaque as parameter. If the callback returns 1, the
blocking operation will be aborted.
No members can be added to this struct without a major bump, if
new elements have been added after this struct in AVFormatContext
or AVIOContext.
Callback for checking whether to abort blocking functions. AVERROR_EXIT is returned in this case by the interrupted function. During blocking operations, callback is called with opaque as parameter. If the callback returns 1, the blocking operation will be aborted.
No members can be added to this struct without a major bump, if new elements have been added after this struct in AVFormatContext or AVIOContext.