Log Message:
version 3.2.4:
- avcodec/h264_slice: Clear ref_counts on redundant slices
- lavf/mov.c: Avoid heap allocation wrap in mov_read_uuid
- lavf/mov.c: Avoid heap allocation wrap in mov_read_hdlr
- avcodec/pictordec: Fix logic error
- ffserver_config: Setup codecpar in add_codec()
- Changelog: fix typos