isSeekable

Whether this input can seek at all, read from the input rather than assumed.

False for a pipe, a capture device and anything else whose bytes only move forward. A player must ask before it offers a seek bar, because on such an input every seekMicros and every PacketReader.seek fails.

It is conservative in one direction: a demuxer that implements its own seek without a seekable byte stream reports false here, because since FFmpeg 7 nothing in the public headers proves otherwise. It never reports true for an input that cannot seek.

Whether this input can seek at all, read from the input rather than assumed.

False for a pipe, a capture device and anything else whose bytes only move forward. A player must ask before it offers a seek bar, because on such an input every seekMicros and every PacketReader.seek fails.

It is conservative in one direction: a demuxer that implements its own seek without a seekable byte stream reports false here, because since FFmpeg 7 nothing in the public headers proves otherwise. It never reports true for an input that cannot seek.

Read once at open, because it cannot change afterwards and because reading it lazily would mean touching the format context, which close frees.

Whether this input can seek at all, read from the input rather than assumed.

False for a pipe, a capture device and anything else whose bytes only move forward. A player must ask before it offers a seek bar, because on such an input every seekMicros and every PacketReader.seek fails.

It is conservative in one direction: a demuxer that implements its own seek without a seekable byte stream reports false here, because since FFmpeg 7 nothing in the public headers proves otherwise. It never reports true for an input that cannot seek.

Whether this input can seek at all, read from the input rather than assumed.

False for a pipe, a capture device and anything else whose bytes only move forward. A player must ask before it offers a seek bar, because on such an input every seekMicros and every PacketReader.seek fails.

It is conservative in one direction: a demuxer that implements its own seek without a seekable byte stream reports false here, because since FFmpeg 7 nothing in the public headers proves otherwise. It never reports true for an input that cannot seek.