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https://github.com/mpv-player/mpv
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a7230dfed0
Raise swscale and zimg default parameters. This restores screenshot quality settings (maybe) unset in the commit before. Also expose some more libswscale and zimg options. Since these options are also used for VOs like x11 and drm, this will make x11/drm/etc. much slower. For compensation, provide a profile that sets the old option values: sw-fast. I'm also enabling zimg here, just as an experiment. The core problem is that we have a single set of command line options which control the settings used for most swscale/zimg uses. This was done in the previous commit. It cannot differentiate between the VOs, which need to be realtime and may accept/require lower quality options, and things like screenshots or vo_image, which can be slower, but should not sacrifice quality by default. Should this have two sets of options or something similar to do the right thing depending on the code which calls libswscale? Maybe. Or should I just ignore the problem, make it someone else's problem (users who want to use software conversion VOs), provide a sub-optimal solution, and call it a day? Definitely, sounds good, pushing to master, goodbye.
70 lines
2.2 KiB
C
70 lines
2.2 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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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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// 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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