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avfilter/af_surround: change x/y spread defaults

Previous default value of 1.0 is producing lesser quality channels.

Paul B Mahol committed 4 years ago

Commit fcee5361 parent 619519e2 files · +24 −16Browse files

Unified · Split

2 files
  1. doc/filters.texi +8 −0
  2. libavfilter/af_surround.c +16 −16
doc/filters.texi+8−0
@@ -6436,15 +6436,23 @@ Set LFE output volume. By default, this is @var{1}. · 6435 unmodified lines
6436 6436
6437@item allx6437@item allx
6438Set spread usage of stereo image across X axis for all channels.6438Set spread usage of stereo image across X axis for all channels.
6439Allowed range is from @var{-1} to @var{15}.
6440By default this value is negative @var{-1}, and thus unused.
6439 6441
6440@item ally6442@item ally
6441Set spread usage of stereo image across Y axis for all channels.6443Set spread usage of stereo image across Y axis for all channels.
6444Allowed range is from @var{-1} to @var{15}.
6445By default this value is negative @var{-1}, and thus unused.
6442 6446
6443@item fcx, flx, frx, blx, brx, slx, srx, bcx6447@item fcx, flx, frx, blx, brx, slx, srx, bcx
6444Set spread usage of stereo image across X axis for each channel.6448Set spread usage of stereo image across X axis for each channel.
6449Allowed range is from @var{0.06} to @var{15}.
6450By default this value is @var{0.5}.
6445 6451
6446@item fcy, fly, fry, bly, bry, sly, sry, bcy6452@item fcy, fly, fry, bly, bry, sly, sry, bcy
6447Set spread usage of stereo image across Y axis for each channel.6453Set spread usage of stereo image across Y axis for each channel.
6454Allowed range is from @var{0.06} to @var{15}.
6455By default this value is @var{0.5}.
6448 6456
6449@item win_size6457@item win_size
6450Set window size. Allowed range is from @var{1024} to @var{65536}. Default size is @var{4096}.6458Set window size. Allowed range is from @var{1024} to @var{65536}. Default size is @var{4096}.
libavfilter/af_surround.c+16−16
@@ -1727,22 +1727,22 @@ static const AVOption surround_options[] = { · 1726 unmodified lines
1727 { "lfe_out", "set lfe channel output level", OFFSET(lfe_out), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 10, FLAGS },1727 { "lfe_out", "set lfe channel output level", OFFSET(lfe_out), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 10, FLAGS },
1728 { "allx", "set all channel's x spread", OFFSET(all_x), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 15, FLAGS },1728 { "allx", "set all channel's x spread", OFFSET(all_x), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 15, FLAGS },
1729 { "ally", "set all channel's y spread", OFFSET(all_y), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 15, FLAGS },1729 { "ally", "set all channel's y spread", OFFSET(all_y), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 15, FLAGS },
1730 { "fcx", "set front center channel x spread", OFFSET(fc_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1730 { "fcx", "set front center channel x spread", OFFSET(fc_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1731 { "flx", "set front left channel x spread", OFFSET(fl_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1731 { "flx", "set front left channel x spread", OFFSET(fl_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1732 { "frx", "set front right channel x spread", OFFSET(fr_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1732 { "frx", "set front right channel x spread", OFFSET(fr_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1733 { "blx", "set back left channel x spread", OFFSET(bl_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1733 { "blx", "set back left channel x spread", OFFSET(bl_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1734 { "brx", "set back right channel x spread", OFFSET(br_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1734 { "brx", "set back right channel x spread", OFFSET(br_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1735 { "slx", "set side left channel x spread", OFFSET(sl_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1735 { "slx", "set side left channel x spread", OFFSET(sl_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1736 { "srx", "set side right channel x spread", OFFSET(sr_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1736 { "srx", "set side right channel x spread", OFFSET(sr_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1737 { "bcx", "set back center channel x spread", OFFSET(bc_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1737 { "bcx", "set back center channel x spread", OFFSET(bc_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1738 { "fcy", "set front center channel y spread", OFFSET(fc_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1738 { "fcy", "set front center channel y spread", OFFSET(fc_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1739 { "fly", "set front left channel y spread", OFFSET(fl_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1739 { "fly", "set front left channel y spread", OFFSET(fl_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1740 { "fry", "set front right channel y spread", OFFSET(fr_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1740 { "fry", "set front right channel y spread", OFFSET(fr_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1741 { "bly", "set back left channel y spread", OFFSET(bl_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1741 { "bly", "set back left channel y spread", OFFSET(bl_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1742 { "bry", "set back right channel y spread", OFFSET(br_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1742 { "bry", "set back right channel y spread", OFFSET(br_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1743 { "sly", "set side left channel y spread", OFFSET(sl_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1743 { "sly", "set side left channel y spread", OFFSET(sl_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1744 { "sry", "set side right channel y spread", OFFSET(sr_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1744 { "sry", "set side right channel y spread", OFFSET(sr_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1745 { "bcy", "set back center channel y spread", OFFSET(bc_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS },1745 { "bcy", "set back center channel y spread", OFFSET(bc_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS },
1746 { "win_size", "set window size", OFFSET(win_size), AV_OPT_TYPE_INT, {.i64 = 4096}, 1024, 65536, FLAGS },1746 { "win_size", "set window size", OFFSET(win_size), AV_OPT_TYPE_INT, {.i64 = 4096}, 1024, 65536, FLAGS },
1747 WIN_FUNC_OPTION("win_func", OFFSET(win_func), FLAGS, WFUNC_HANNING),1747 WIN_FUNC_OPTION("win_func", OFFSET(win_func), FLAGS, WFUNC_HANNING),
1748 { "overlap", "set window overlap", OFFSET(overlap), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },1748 { "overlap", "set window overlap", OFFSET(overlap), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },

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