From f2e2456294663b86dd7b410a24bd60dcb21cc1b7 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Sat, 5 Jan 2019 09:38:27 +0100 Subject: [PATCH] avfilter/af_afir: adjust min partition size Minimal value allowed by our FFT is 16 thus min partition size is 8. --- doc/filters.texi | 4 ++-- libavfilter/af_afir.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index 5c651fc345..98858c5356 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -1233,12 +1233,12 @@ Set video stream frame rate. This option is used only when @var{response} is ena @item minp Set minimal partition size used for convolution. Default is @var{8192}. -Allowed range is from @var{16} to @var{32768}. +Allowed range is from @var{8} to @var{32768}. Lower values decreases latency at cost of higher CPU usage. @item maxp Set maximal partition size used for convolution. Default is @var{8192}. -Allowed range is from @var{16} to @var{32768}. +Allowed range is from @var{8} to @var{32768}. Lower values may increase CPU usage. @end table diff --git a/libavfilter/af_afir.c b/libavfilter/af_afir.c index c755dc1f6f..31919f62e9 100644 --- a/libavfilter/af_afir.c +++ b/libavfilter/af_afir.c @@ -842,8 +842,8 @@ static const AVOption afir_options[] = { { "channel", "set IR channel to display frequency response", OFFSET(ir_channel), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, VF }, { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "hd720"}, 0, 0, VF }, { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT32_MAX, VF }, - { "minp", "set min partition size", OFFSET(minp), AV_OPT_TYPE_INT, {.i64=8192}, 16, 32768, AF }, - { "maxp", "set max partition size", OFFSET(maxp), AV_OPT_TYPE_INT, {.i64=8192}, 16, 32768, AF }, + { "minp", "set min partition size", OFFSET(minp), AV_OPT_TYPE_INT, {.i64=8192}, 8, 32768, AF }, + { "maxp", "set max partition size", OFFSET(maxp), AV_OPT_TYPE_INT, {.i64=8192}, 8, 32768, AF }, { NULL } };