+ .inputs = avfilter_vf_frei0r_inputs,
+
+ .outputs = avfilter_vf_frei0r_outputs,
+};
+
+static av_cold int source_init(AVFilterContext *ctx, const char *args)
+{
+ Frei0rContext *frei0r = ctx->priv;
+ char dl_name[1024], c;
+ char frame_size[128] = "";
+ char frame_rate[128] = "";
+ AVRational frame_rate_q;
+
+ memset(frei0r->params, 0, sizeof(frei0r->params));
+
+ if (args)
+ sscanf(args, "%127[^:]:%127[^:]:%1023[^:=]%c%255c",
+ frame_size, frame_rate, dl_name, &c, frei0r->params);
+
+ if (av_parse_video_size(&frei0r->w, &frei0r->h, frame_size) < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", frame_size);
+ return AVERROR(EINVAL);
+ }
+
+ if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 ||
+ frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", frame_rate);
+ return AVERROR(EINVAL);
+ }
+ frei0r->time_base.num = frame_rate_q.den;
+ frei0r->time_base.den = frame_rate_q.num;
+
+ return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_SOURCE);
+}
+
+static int source_config_props(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ Frei0rContext *frei0r = ctx->priv;
+
+ if (av_image_check_size(frei0r->w, frei0r->h, 0, ctx) < 0)
+ return AVERROR(EINVAL);
+ outlink->w = frei0r->w;
+ outlink->h = frei0r->h;
+ outlink->time_base = frei0r->time_base;
+
+ if (!(frei0r->instance = frei0r->construct(outlink->w, outlink->h))) {
+ av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance");
+ return AVERROR(EINVAL);
+ }
+
+ return set_params(ctx, frei0r->params);
+}
+
+static int source_request_frame(AVFilterLink *outlink)
+{
+ Frei0rContext *frei0r = outlink->src->priv;
+ AVFrame *frame = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+
+ if (!frame)
+ return AVERROR(ENOMEM);
+
+ frame->sample_aspect_ratio = (AVRational) {1, 1};
+ frame->pts = frei0r->pts++;
+
+ frei0r->update(frei0r->instance, av_rescale_q(frame->pts, frei0r->time_base, (AVRational){1,1000}),
+ NULL, (uint32_t *)frame->data[0]);
+
+ return ff_filter_frame(outlink, frame);
+}
+
+static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .request_frame = source_request_frame,
+ .config_props = source_config_props
+ },
+ { NULL }
+};
+
+AVFilter avfilter_vsrc_frei0r_src = {
+ .name = "frei0r_src",
+ .description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."),
+
+ .priv_size = sizeof(Frei0rContext),
+ .init = source_init,
+ .uninit = uninit,
+
+ .query_formats = query_formats,
+
+ .inputs = NULL,
+
+ .outputs = avfilter_vsrc_frei0r_src_outputs,