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c99d95ac17
This sucks, but is helpful for testing. Obviously, it would be much nicer if there were a way to specify _all_ scaler options per filter (if the user wanted), instead of always using the global options. But this is "too hard" for now. For testing, it is extremely convenient to select the scaler backend, so add this option, but make clear that it could go away. We'd delete it once there is a better mechanism for this.
79 lines
2.4 KiB
C
79 lines
2.4 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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int brightness, contrast, saturation;
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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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// 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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};
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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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