} StereoToolsContext;
#define OFFSET(x) offsetof(StereoToolsContext, x)
-#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+#define A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption stereotools_options[] = {
{ "level_in", "set level in", OFFSET(level_in), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0.015625, 64, A },
{ "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" },
{ "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 },
AVFilterContext *ctx = inlink->dst;
StereoToolsContext *s = ctx->priv;
- s->length = 2 * inlink->sample_rate * 0.05;
- if (s->length <= 1 || s->length & 1) {
- av_log(ctx, AV_LOG_ERROR, "sample rate is too small\n");
- return AVERROR(EINVAL);
- }
- s->buffer = av_calloc(s->length, sizeof(*s->buffer));
+ s->length = FFALIGN(inlink->sample_rate / 10, 2);
+ if (!s->buffer)
+ s->buffer = av_calloc(s->length, sizeof(*s->buffer));
if (!s->buffer)
return AVERROR(ENOMEM);
L = R;
break;
case 5:
- L = (L + R) / 2;
+ L = (L + R) * 0.5;
R = L;
break;
case 6:
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;
L *= level_out;
R *= level_out;
- dst[0] = L;
- dst[1] = R;
+ if (ctx->is_disabled) {
+ dst[0] = src[0];
+ dst[1] = src[1];
+ } else {
+ dst[0] = L;
+ dst[1] = R;
+ }
}
if (out != in)
return ff_filter_frame(outlink, out);
}
+static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
+ char *res, int res_len, int flags)
+{
+ int ret;
+
+ ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
+ if (ret < 0)
+ return ret;
+
+ return config_input(ctx->inputs[0]);
+}
+
static av_cold void uninit(AVFilterContext *ctx)
{
StereoToolsContext *s = ctx->priv;
{ NULL }
};
-AVFilter ff_af_stereotools = {
+const AVFilter ff_af_stereotools = {
.name = "stereotools",
.description = NULL_IF_CONFIG_SMALL("Apply various stereo tools."),
.query_formats = query_formats,
.uninit = uninit,
.inputs = inputs,
.outputs = outputs,
+ .process_command = process_command,
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
};