mirror of https://github.com/mpv-player/mpv
43 lines
2.0 KiB
C
43 lines
2.0 KiB
C
#pragma once
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#include "frame.h"
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// A wrapped libavfilter filter or filter graph.
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// (to free this, free the filter itself, mp_lavfi.f)
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struct mp_lavfi {
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// This mirrors the libavfilter pads according to the user specification.
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struct mp_filter *f;
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};
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// Create a filter with the given libavfilter graph string. The graph must
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// have labels on all unconnected pads; these are exposed as pins.
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// type: if not 0, require all pads to have a compatible media type (or error)
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// bidir: if true, require exactly 2 pads, 1 input, 1 output (mp_lavfi.f will
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// have the input as pin 0, and the output as pin 1)
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// graph_opts: options for the filter graph, see mp_set_avopts() (NULL is OK)
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// graph: a libavfilter graph specification
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struct mp_lavfi *mp_lavfi_create_graph(struct mp_filter *parent,
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enum mp_frame_type type, bool bidir,
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char *hwdec_interop,
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char **graph_opts, const char *graph);
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// Unlike mp_lavfi_create_graph(), this creates a single filter, using explicit
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// options, and without involving the libavfilter graph parser. Instead of
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// a graph, it takes a filter name, and a key-value list of filter options
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// (which are applied with mp_set_avopts()).
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struct mp_lavfi *mp_lavfi_create_filter(struct mp_filter *parent,
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enum mp_frame_type type, bool bidir,
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char *hwdec_interop,
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char **graph_opts,
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const char *filter, char **filter_opts);
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struct mp_log;
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// Print libavfilter list for --vf/--af
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void print_lavfi_help_list(struct mp_log *log, int media_type);
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// Print libavfilter help for the given filter
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void print_lavfi_help(struct mp_log *log, const char *name, int media_type);
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// Return whether the given filter exists and has the required media_type in/outs.
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bool mp_lavfi_is_usable(const char *name, int media_type);
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