Some invocations include a verb in the log message, others do not.  Yet
av_log_missing_feature expects callers to provide a verb.  Change the
function to include a verb instead and update the callers accordingly.
The result is a more natural function API and correct English in the
function invocations.

The fisbone packets can be muxed in any order as long the last one
comes before the first data packet.

Not having the header for a codec is a tell-tale of a broken file.

It's supposed to be called only from (de)muxers.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Change int64_t into a int, which caused this compiler warning:
libavformat/oggparseskeleton.c:64: warning: passing argument 2 of ‘av_reduce’ from incompatible pointer type

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22705 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22457 to svn://svn.ffmpeg.org/ffmpeg/trunk