An array of side data that applies to the whole stream (i.e. the
container does not allow it to change between packets).
There may be no overlap between the side data in this array and side data
in the packets. I.e. a given side data is either exported by the muxer
(demuxing) / set by the caller (muxing) in this array, then it never
appears in the packets, or the side data is exported / sent through
the packets (always in the first packet where the value becomes known or
changes), then it does not appear in this array.
- demuxing: Set by libavformat when the stream is created.
- muxing: May be set by the caller before avformat_write_header().
An array of side data that applies to the whole stream (i.e. the container does not allow it to change between packets).
There may be no overlap between the side data in this array and side data in the packets. I.e. a given side data is either exported by the muxer (demuxing) / set by the caller (muxing) in this array, then it never appears in the packets, or the side data is exported / sent through the packets (always in the first packet where the value becomes known or changes), then it does not appear in this array.
- demuxing: Set by libavformat when the stream is created. - muxing: May be set by the caller before avformat_write_header().
Freed by libavformat in avformat_free_context().
@see av_format_inject_global_side_data()