diff options
| author | Paul B Mahol <onemda@gmail.com> | 2018-11-08 22:07:14 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2018-11-08 22:07:14 +0100 |
| commit | 36348d77b86a76041d09bbf876af6d267042b8bb (patch) | |
| tree | ed1694a820c71261e583a70eb06bfbb3f4d7156e /libavfilter/af_afir.c | |
| parent | 698e67bef2ee76f317193e27f354c129b241332c (diff) | |
avfilter/af_afir: add minp/maxp options to control latency and speed
Diffstat (limited to 'libavfilter/af_afir.c')
| -rw-r--r-- | libavfilter/af_afir.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavfilter/af_afir.c b/libavfilter/af_afir.c index 624eab093f..f12049f7ba 100644 --- a/libavfilter/af_afir.c +++ b/libavfilter/af_afir.c @@ -310,8 +310,8 @@ static int convert_coeffs(AVFilterContext *ctx) if (s->nb_taps <= 0) return AVERROR(EINVAL); - for (n = 4; (1 << n) < s->nb_taps; n++); - N = FFMIN(n, 16); + for (n = av_log2(s->minp); (1 << n) < s->nb_taps; n++); + N = FFMIN(n, av_log2(s->maxp)); s->ir_length = 1 << n; s->fft_length = (1 << (N + 1)) + 1; s->part_size = 1 << (N - 1); @@ -786,6 +786,8 @@ 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=16}, 16, 65536, AF }, + { "maxp", "set max partition size", OFFSET(maxp), AV_OPT_TYPE_INT, {.i64=65536}, 16, 65536, AF }, { NULL } }; |