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| author | Paul B Mahol <onemda@gmail.com> | 2018-01-09 12:55:49 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2018-01-09 13:08:01 +0100 |
| commit | 21c99f4b40de07c2390803d47f4dd247175e08a3 (patch) | |
| tree | 047447def1e816f8ba51450ebf30a22711df3df0 /libavfilter/af_aiir.c | |
| parent | d9a3074b93aca99fa223deab641af90e962d5daf (diff) | |
| download | ffmpeg-21c99f4b40de07c2390803d47f4dd247175e08a3.tar.gz | |
avfilter/af_aiir: make default processing to serially cascaded
Also add several helpfull log messages.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavfilter/af_aiir.c')
| -rw-r--r-- | libavfilter/af_aiir.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/libavfilter/af_aiir.c b/libavfilter/af_aiir.c index 1d6153d8fc..c805c8e770 100644 --- a/libavfilter/af_aiir.c +++ b/libavfilter/af_aiir.c @@ -604,7 +604,12 @@ static int config_output(AVFilterLink *outlink) if (ret < 0) return ret; + if (s->format == 0) + av_log(ctx, AV_LOG_WARNING, "tf coefficients format is not recommended for too high number of zeros/poles.\n"); + if (s->format == 1 && s->process == 0) { + av_log(ctx, AV_LOG_WARNING, "Direct processsing is not recommended for zp coefficients format.\n"); + ret = convert_zp2tf(ctx, inlink->channels); if (ret < 0) return ret; @@ -612,6 +617,9 @@ static int config_output(AVFilterLink *outlink) av_log(ctx, AV_LOG_ERROR, "Serial cascading is not implemented for transfer function.\n"); return AVERROR_PATCHWELCOME; } else if (s->format == 1 && s->process == 1) { + if (inlink->format == AV_SAMPLE_FMT_S16P) + av_log(ctx, AV_LOG_WARNING, "Serial cascading is not recommended for i16 precision.\n"); + s->biquads = av_calloc(inlink->channels, sizeof(*s->biquads)); if (!s->biquads) return AVERROR(ENOMEM); @@ -756,15 +764,15 @@ static const AVFilterPad outputs[] = { #define AF AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM static const AVOption aiir_options[] = { - { "z", "set B/numerator/zeros coefficients", OFFSET(b_str), AV_OPT_TYPE_STRING, {.str="1 1"}, 0, 0, AF }, - { "p", "set A/denominator/poles coefficients", OFFSET(a_str), AV_OPT_TYPE_STRING, {.str="1 1"}, 0, 0, AF }, + { "z", "set B/numerator/zeros coefficients", OFFSET(b_str), AV_OPT_TYPE_STRING, {.str="1+0i 1-0i"}, 0, 0, AF }, + { "p", "set A/denominator/poles coefficients", OFFSET(a_str), AV_OPT_TYPE_STRING, {.str="1+0i 1-0i"}, 0, 0, AF }, { "k", "set channels gains", OFFSET(g_str), AV_OPT_TYPE_STRING, {.str="1|1"}, 0, 0, AF }, { "dry", "set dry gain", OFFSET(dry_gain), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, AF }, { "wet", "set wet gain", OFFSET(wet_gain), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, AF }, { "f", "set coefficients format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, AF, "format" }, { "tf", "transfer function", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AF, "format" }, { "zp", "Z-plane zeros/poles", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AF, "format" }, - { "r", "set kind of processing", OFFSET(process), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, AF, "process" }, + { "r", "set kind of processing", OFFSET(process), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, AF, "process" }, { "d", "direct", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AF, "process" }, { "s", "serial cascading", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AF, "process" }, { "e", "set precision", OFFSET(precision),AV_OPT_TYPE_INT, {.i64=0}, 0, 3, AF, "precision" }, |