int64_t pts;
AVAudioFifo *fifo;
+ int eof_left;
AudioNLMDNDSPContext dsp;
} AudioNLMeansContext;
s->K = av_rescale(s->pd, outlink->sample_rate, AV_TIME_BASE);
s->S = av_rescale(s->rd, outlink->sample_rate, AV_TIME_BASE);
+ s->eof_left = -1;
s->pts = AV_NOPTS_VALUE;
s->H = s->K * 2 + 1;
s->N = s->H + (s->K + s->S) * 2;
return ret;
}
+static int request_frame(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ AudioNLMeansContext *s = ctx->priv;
+ int ret;
+
+ ret = ff_request_frame(ctx->inputs[0]);
+
+ if (ret == AVERROR_EOF && s->eof_left != 0) {
+ AVFrame *in;
+
+ if (s->eof_left < 0)
+ s->eof_left = av_audio_fifo_size(s->fifo);
+ in = ff_get_audio_buffer(outlink, FFMIN(s->H, s->N - s->eof_left));
+ if (!in)
+ return AVERROR(ENOMEM);
+
+ if (s->eof_left < s->H)
+ s->eof_left = 0;
+ else
+ s->eof_left -= s->H;
+ return filter_frame(ctx->inputs[0], in);
+ }
+
+ return ret;
+}
+
static av_cold void uninit(AVFilterContext *ctx)
{
AudioNLMeansContext *s = ctx->priv;
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_output,
+ .request_frame = request_frame,
},
{ NULL }
};