Amovie

Audio Multiple outputs Source

Read audio from a movie source.

FFmpeg filter: amovie — the official reference.

Generate a stream. Amovie is a source — it has no input, so you create a stream from it rather than applying it to one:

$audio = \FFmpeg\AudioStream::generate(new Amovie(…));

apply() and addFilter() do not apply to source filters (there is nothing to attach them to).

When to use it

TODO — when this filter shines: what it’s the right tool for, what to reach for instead when it isn’t, and how it composes with neighbouring filters.

How to use it

TODO — prose: how the filter actually works and what its key parameters mean (the explanation FFmpeg’s terse option help omits).

Examples

TODO — runnable PHP, with the equivalent ffmpeg CLI alongside.

Gotchas

TODO

See also

TODO

Parameters

Parameter	Type	Default	Range / values	Description
filename	string	—	—
format_name	string	—	—	set format name
stream_index	int	-1	≥ -1	set stream index
seek_point	float	0	≥ 0	set seekpoint (seconds)
streams	string	—	—	set streams
loop	int	1	≥ 0	set loop count
discontinuity	int	0	≥ 0	set discontinuity threshold
dec_threads	int	0	≥ 0	set the number of threads for decoding
format_opts	string	—	—	set format options for the opened file

FFmpeg also names these options (use the parameter shown above): f → format_name, si → stream_index, sp → seek_point, s → streams.

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Maps to FFmpeg’s amovie filter. Verified against ffmpeg n7.1.1.