From 456146356a524ca7ff6ca148ee4c19fc66ee531e Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Fri, 4 Dec 2020 11:53:34 +0100 Subject: avfilter/af_stereotools: add two more modes --- libavfilter/af_stereotools.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'libavfilter/af_stereotools.c') diff --git a/libavfilter/af_stereotools.c b/libavfilter/af_stereotools.c index 7e529783d5..94e9b150dd 100644 --- a/libavfilter/af_stereotools.c +++ b/libavfilter/af_stereotools.c @@ -69,7 +69,7 @@ static const AVOption stereotools_options[] = { { "muter", "mute R", OFFSET(mute_r), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, A }, { "phasel", "phase L", OFFSET(phase_l), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, A }, { "phaser", "phase R", OFFSET(phase_r), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, A }, - { "mode", "set stereo mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 8, A, "mode" }, + { "mode", "set stereo mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 10, A, "mode" }, { "lr>lr", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, A, "mode" }, { "lr>ms", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, A, "mode" }, { "ms>lr", 0, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, A, "mode" }, @@ -79,6 +79,8 @@ static const AVOption stereotools_options[] = { { "lr>rl", 0, 0, AV_OPT_TYPE_CONST, {.i64=6}, 0, 0, A, "mode" }, { "ms>ll", 0, 0, AV_OPT_TYPE_CONST, {.i64=7}, 0, 0, A, "mode" }, { "ms>rr", 0, 0, AV_OPT_TYPE_CONST, {.i64=8}, 0, 0, A, "mode" }, + { "ms>rl", 0, 0, AV_OPT_TYPE_CONST, {.i64=9}, 0, 0, A, "mode" }, + { "lr>l-r", 0, 0, AV_OPT_TYPE_CONST, {.i64=10}, 0, 0, A, "mode" }, { "slev", "set side level", OFFSET(slev), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0.015625, 64, A }, { "sbal", "set side balance", OFFSET(sbal), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, A }, { "mlev", "set middle level", OFFSET(mlev), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0.015625, 64, A }, @@ -235,7 +237,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) L = R; break; case 5: - L = (L + R) / 2; + L = (L + R) * 0.5; R = L; break; case 6: @@ -259,6 +261,16 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) L = r; R = r; break; + case 9: + l = L * mlev * FFMIN(1., 2. - mpan) + R * slev * FFMIN(1., 2. - sbal); + r = L * mlev * FFMIN(1., mpan) - R * slev * FFMIN(1., sbal); + L = r; + R = l; + break; + case 10: + L = (L - R) * 0.5; + R = L; + break; } L *= 1. - mute_l; -- cgit v1.2.3