mirror of https://github.com/mpv-player/mpv
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
#pragma once
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#include <stdbool.h>
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#include <zimg.h>
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#include "mp_image.h"
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#define ZIMG_ALIGN 64
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struct mpv_global;
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bool mp_zimg_supports_in_format(int imgfmt);
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bool mp_zimg_supports_out_format(int imgfmt);
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struct mp_zimg_context {
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// Can be set for verbose error printing.
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struct mp_log *log;
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// User configuration. Note: changing these requires calling mp_zimg_config()
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// to update the filter graph. The first mp_zimg_convert() call (or if the
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// image format changes) will do this automatically.
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zimg_resample_filter_e scaler;
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double scaler_params[2];
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zimg_resample_filter_e scaler_chroma;
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double scaler_chroma_params[2];
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zimg_dither_type_e dither;
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bool fast; // reduce quality for better performance
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// Input/output parameters. Note: if these mismatch with the
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// mp_zimg_convert() parameters, mp_zimg_config() will be called
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// automatically.
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struct mp_image_params src, dst;
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// Cached zimg state (if any). Private, do not touch.
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zimg_filter_graph *zimg_graph;
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void *zimg_tmp;
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struct mp_zimg_repack *zimg_src;
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struct mp_zimg_repack *zimg_dst;
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};
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// Allocate a zimg context. Always succeeds. Returns a talloc pointer (use
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// talloc_free() to release it).
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struct mp_zimg_context *mp_zimg_alloc(void);
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// Try to build the conversion chain using the parameters currently set in ctx.
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// If this succeeds, mp_zimg_convert() will always succeed (probably), as long
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// as the input has the same parameters.
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// Returns false on error.
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bool mp_zimg_config(struct mp_zimg_context *ctx);
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// Similar to mp_zimg_config(), but assume none of the user parameters changed,
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// except possibly .src and .dst. This essentially checks whether src/dst
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// changed, and if so, calls mp_zimg_config().
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bool mp_zimg_config_image_params(struct mp_zimg_context *ctx);
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// Convert/scale src to dst. On failure, the data in dst is not touched.
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bool mp_zimg_convert(struct mp_zimg_context *ctx, struct mp_image *dst,
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struct mp_image *src);
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// Set the global zimg command line parameters on this context. Use this if you
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// want the user to be able to change the scaler etc.
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void mp_zimg_set_from_cmdline(struct mp_zimg_context *ctx, struct mpv_global *g);
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