Closed-Caption decoder

Register name used to load filter: ccdec
This filter is not checked during graph resolution and needs explicit loading.

This filter decodes Closed Captions to unframed SRT.
Supported video media types are MPEG2, AVC, HEVC, VVC and AV1 streams.

Only a subset of CEA 608/708 is supported.

Options

agg (enum, default: none): output aggregation mode

• none: forward data as decoded (default)
• word: aggregate words (separated by a space)