mirror of https://github.com/mpv-player/mpv.git
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
#ifndef MPLAYER_SWS_UTILS_H
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#define MPLAYER_SWS_UTILS_H
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#include <stdbool.h>
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#include "mp_image.h"
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struct mp_image;
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struct mpv_global;
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// libswscale currently requires 16 bytes alignment for row pointers and
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// strides. Otherwise, it will print warnings and use slow codepaths.
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// Guaranteed to be a power of 2 and > 1.
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#define SWS_MIN_BYTE_ALIGN MP_IMAGE_BYTE_ALIGN
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extern const int mp_sws_fast_flags;
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bool mp_sws_supported_format(int imgfmt);
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int mp_image_swscale(struct mp_image *dst, struct mp_image *src,
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int my_sws_flags);
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int mp_image_sw_blur_scale(struct mp_image *dst, struct mp_image *src,
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float gblur);
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enum mp_sws_scaler {
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MP_SWS_AUTO = 0, // use command line
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MP_SWS_SWS,
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MP_SWS_ZIMG,
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};
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struct mp_sws_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. These can be changed freely, at any time.
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// mp_sws_scale() will handle the changes transparently.
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int flags;
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bool allow_zimg; // use zimg if available (ignores filters and all)
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bool force_reload;
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// These are also implicitly set by mp_sws_scale(), and thus optional.
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// Setting them before that call makes sense when using mp_sws_reinit().
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struct mp_image_params src, dst;
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// This is unfortunately a hack: bypass command line choice
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enum mp_sws_scaler force_scaler;
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// If zimg is used. Need to manually invalidate cache (set force_reload).
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// Conflicts with enabling command line opts.
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struct zimg_opts *zimg_opts;
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// Changing these requires setting force_reload=true.
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// By default, they are NULL.
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// Freeing the mp_sws_context will deallocate these if set.
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struct SwsFilter *src_filter, *dst_filter;
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double params[2];
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// Cached context (if any)
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struct SwsContext *sws;
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bool supports_csp;
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// Private.
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struct m_config_cache *opts_cache;
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struct mp_sws_context *cached; // contains parameters for which sws is valid
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struct mp_zimg_context *zimg;
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bool zimg_ok;
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struct mp_image *aligned_src, *aligned_dst;
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};
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struct mp_sws_context *mp_sws_alloc(void *talloc_ctx);
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void mp_sws_enable_cmdline_opts(struct mp_sws_context *ctx, struct mpv_global *g);
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int mp_sws_reinit(struct mp_sws_context *ctx);
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int mp_sws_scale(struct mp_sws_context *ctx, struct mp_image *dst,
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struct mp_image *src);
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bool mp_sws_supports_formats(struct mp_sws_context *ctx,
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int imgfmt_out, int imgfmt_in);
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struct mp_image *mp_img_swap_to_native(struct mp_image *img);
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#endif /* MP_SWS_UTILS_H */
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// vim: ts=4 sw=4 et tw=80
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