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| author | Paul B Mahol <onemda@gmail.com> | 2022-02-12 12:41:08 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2022-02-12 12:48:42 +0100 |
| commit | fcee53619a5d9efeb90ababe280ff68645c57483 (patch) | |
| tree | bbc24f6341071258e63cb535f314aa7c1f160d39 | |
| parent | 619519ee0a899057b1e8615587df3a0d9973034d (diff) | |
| download | ffmpeg-fcee53619a5d9efeb90ababe280ff68645c57483.tar.gz | |
avfilter/af_surround: change x/y spread defaults
Previous default value of 1.0 is producing lesser quality channels.
| -rw-r--r-- | doc/filters.texi | 8 | ||||
| -rw-r--r-- | libavfilter/af_surround.c | 32 |
2 files changed, 24 insertions, 16 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 706debcbce..1eb2027d02 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -6436,15 +6436,23 @@ Set LFE output volume. By default, this is @var{1}. @item allx Set spread usage of stereo image across X axis for all channels. +Allowed range is from @var{-1} to @var{15}. +By default this value is negative @var{-1}, and thus unused. @item ally Set spread usage of stereo image across Y axis for all channels. +Allowed range is from @var{-1} to @var{15}. +By default this value is negative @var{-1}, and thus unused. @item fcx, flx, frx, blx, brx, slx, srx, bcx Set spread usage of stereo image across X axis for each channel. +Allowed range is from @var{0.06} to @var{15}. +By default this value is @var{0.5}. @item fcy, fly, fry, bly, bry, sly, sry, bcy Set spread usage of stereo image across Y axis for each channel. +Allowed range is from @var{0.06} to @var{15}. +By default this value is @var{0.5}. @item win_size Set window size. Allowed range is from @var{1024} to @var{65536}. Default size is @var{4096}. diff --git a/libavfilter/af_surround.c b/libavfilter/af_surround.c index 83edc8dd37..56c29548eb 100644 --- a/libavfilter/af_surround.c +++ b/libavfilter/af_surround.c @@ -1727,22 +1727,22 @@ static const AVOption surround_options[] = { { "lfe_out", "set lfe channel output level", OFFSET(lfe_out), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 10, FLAGS }, { "allx", "set all channel's x spread", OFFSET(all_x), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 15, FLAGS }, { "ally", "set all channel's y spread", OFFSET(all_y), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -1, 15, FLAGS }, - { "fcx", "set front center channel x spread", OFFSET(fc_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "flx", "set front left channel x spread", OFFSET(fl_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "frx", "set front right channel x spread", OFFSET(fr_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "blx", "set back left channel x spread", OFFSET(bl_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "brx", "set back right channel x spread", OFFSET(br_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "slx", "set side left channel x spread", OFFSET(sl_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "srx", "set side right channel x spread", OFFSET(sr_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "bcx", "set back center channel x spread", OFFSET(bc_x), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "fcy", "set front center channel y spread", OFFSET(fc_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "fly", "set front left channel y spread", OFFSET(fl_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "fry", "set front right channel y spread", OFFSET(fr_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "bly", "set back left channel y spread", OFFSET(bl_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "bry", "set back right channel y spread", OFFSET(br_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "sly", "set side left channel y spread", OFFSET(sl_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "sry", "set side right channel y spread", OFFSET(sr_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, - { "bcy", "set back center channel y spread", OFFSET(bc_y), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0, 15, FLAGS }, + { "fcx", "set front center channel x spread", OFFSET(fc_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "flx", "set front left channel x spread", OFFSET(fl_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "frx", "set front right channel x spread", OFFSET(fr_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "blx", "set back left channel x spread", OFFSET(bl_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "brx", "set back right channel x spread", OFFSET(br_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "slx", "set side left channel x spread", OFFSET(sl_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "srx", "set side right channel x spread", OFFSET(sr_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "bcx", "set back center channel x spread", OFFSET(bc_x), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "fcy", "set front center channel y spread", OFFSET(fc_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "fly", "set front left channel y spread", OFFSET(fl_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "fry", "set front right channel y spread", OFFSET(fr_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "bly", "set back left channel y spread", OFFSET(bl_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "bry", "set back right channel y spread", OFFSET(br_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "sly", "set side left channel y spread", OFFSET(sl_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "sry", "set side right channel y spread", OFFSET(sr_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, + { "bcy", "set back center channel y spread", OFFSET(bc_y), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, .06, 15, FLAGS }, { "win_size", "set window size", OFFSET(win_size), AV_OPT_TYPE_INT, {.i64 = 4096}, 1024, 65536, FLAGS }, WIN_FUNC_OPTION("win_func", OFFSET(win_func), FLAGS, WFUNC_HANNING), { "overlap", "set window overlap", OFFSET(overlap), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS }, |