RepoMirrors/mpv
1
0
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2025-03-11 08:37:59 +00:00
Code Issues Releases Wiki Activity

vo_opengl: make "mitchell" the hq default filter for downscaling

Browse Source 
Seems like several people agree that it's a good filter for downscaling.

Setting this option by default may also prevent people from accidentally
using an unsuitable filter for downscaling by setting "scale" and
without being aware of the impliciations (maybe). On the other hand,
this change is not strictly backwards compatible for the same reasons.

Also, allow disabling this option with scale-down="" (before this, not
setting it was the only way to do this - not possible anymore if it's
set by default). This is what the change in handle_scaler_opt() does.
This commit is contained in:
wm4 2015-01-26 02:03:44 +01:00
parent 639e2bd12f
commit dc1793048f
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
DOCS/man/vo.rst
View File

@ -597,7 +597,7 @@ Available video output drivers are:
This is equivalent to::
--vo=opengl:scale=spline36:dither-depth=auto:fbo-format=rgba16:fancy-downscaling:sigmoid-upscaling
--vo=opengl:scale=spline36:scale-down=mitchell:dither-depth=auto:fbo-format=rgba16:fancy-downscaling:sigmoid-upscaling
Note that some cheaper LCDs do dithering that gravely interferes with
``opengl``'s dithering. Disabling dithering with ``dither-depth=no`` helps.

3
video/out/gl_video.c
View File

@ -350,6 +350,7 @@ const struct gl_video_opts gl_video_opts_hq_def = {
.sigmoid_slope = 6.5,
.sigmoid_upscaling = 1,
.scalers = { "spline36", "bilinear" },
.dscaler = "mitchell",
.scaler_params = {{NAN, NAN}, {NAN, NAN}},
.scaler_radius = {3, 3},
.alpha_mode = 2,
@ -2720,7 +2721,7 @@ struct gl_video *gl_video_init(GL *gl, struct mp_log *log, struct osd_state *osd
// Get static string for scaler shader.
static const char *handle_scaler_opt(const char *name)
{
if (name) {
if (name && name[0]) {
const struct filter_kernel *kernel = mp_find_filter_kernel(name);
if (kernel)
return kernel->name;