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#pragma once
#include "filter.h"
// A filter which automatically creates and uses a conversion filter based on
// the filter settings, or passes through data unchanged if no conversion is
// required.
struct mp_autoconvert {
// f->pins[0] is input, f->pins[1] is output
struct mp_filter *f;
// If this is set, the callback is invoked (from the process function), and
// further data flow is blocked until mp_autoconvert_format_change_continue()
// is called. The idea is that you can reselect the output parameters on
// format changes and continue filtering when ready.
void (*on_audio_format_change)(void *opaque);
void *on_audio_format_change_opaque;
};
// (to free this, free the filter itself, mp_autoconvert.f)
struct mp_autoconvert *mp_autoconvert_create(struct mp_filter *parent);
// Add the imgfmt as allowed video image format, and error on non-video frames.
// Each call adds to the list of allowed formats. Before the first call, all
// formats are allowed (even non-video).
// subfmt can be used to specify underlying surface formats for hardware formats,
// otherwise must be 0.
void mp_autoconvert_add_imgfmt(struct mp_autoconvert *c, int imgfmt, int subfmt);
// Add the formats supported by the hwdec interops (or essentially refine them),
// and trigger conversion if hw_subfmts mismatch. This is mostly a hack for
// D3D11/ANGLE (which supports NV12 only).
// Must be called mp_autoconvert_add_imgfmt(), and overrides them where formats
// collide.
struct mp_hwdec_devices;
void mp_autoconvert_add_vo_hwdec_subfmts(struct mp_autoconvert *c,
struct mp_hwdec_devices *devs);
// Add afmt (an AF_FORMAT_* value) as allowed audio format.
// See mp_autoconvert_add_imgfmt() for other remarks.
void mp_autoconvert_add_afmt(struct mp_autoconvert *c, int afmt);
// Add allowed audio channel configuration.
struct mp_chmap;
void mp_autoconvert_add_chmap(struct mp_autoconvert *c, struct mp_chmap *chmap);
// Add allowed audio sample rate.
void mp_autoconvert_add_srate(struct mp_autoconvert *c, int rate);
// Reset set of allowed formats back to initial state. (This does not flush
// any frames or remove currently active filters, although to get reasonable
// behavior, you need to readd all previously allowed formats, or reset the
// filter.)
void mp_autoconvert_clear(struct mp_autoconvert *c);
// See mp_autoconvert.on_audio_format_change.
void mp_autoconvert_format_change_continue(struct mp_autoconvert *c);
// vf_d3d11vpp.c
struct mp_filter *vf_d3d11_create_outconv(struct mp_filter *parent);
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