dict.c: Add av_dict_set_int helper function.

This allows getting rid of the many, slightly differing, implementations
of basically the same thing.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Use new av_dict_set_int helper function.

Get rid of the many, slightly differing, implementations
of basically the same thing.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
dict.c: empty dictionaries should be a NULL pointer.

Ensure this is even the case if they are empty because
we failed adding the first entry.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
avcodec/dvdsubdec: Dont mix integers with pointers

Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/dvbsubdec: dont mix integers with pointers

Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/udp: dont mix integers with pointers

Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/udp: remove unneeded variable initialization

Found-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/hevc_mvs: dont redundantly initialize ref_idx_curr

Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/mips/compute_antialias_float: remove unused variable

Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
cinedec: allow number zero in metadata