static void print_digraph(FILE *outfile, AVFilterGraph *graph)
{
int i, j;
fprintf(outfile, "digraph G {\n");
fprintf(outfile, "node [shape=box]\n");
fprintf(outfile, "rankdir=LR\n");
for (i = 0; i < graph->nb_filters; i++) {
char filter_ctx_label[128];
const AVFilterContext *filter_ctx = graph->filters[i];
snprintf(filter_ctx_label, sizeof(filter_ctx_label), "%s\\n(%s)",
filter_ctx->name,
filter_ctx->filter->name);
for (j = 0; j < filter_ctx->nb_outputs; j++) {
AVFilterLink *link = filter_ctx->outputs[j];
if (link) {
char dst_filter_ctx_label[128];
const AVFilterContext *dst_filter_ctx = link->dst;
snprintf(dst_filter_ctx_label, sizeof(dst_filter_ctx_label),
"%s\\n(%s)",
dst_filter_ctx->name,
dst_filter_ctx->filter->name);
fprintf(outfile, "\"%s\" -> \"%s\" [ label= \"inpad:%s -> outpad:%s\\n",
filter_ctx_label, dst_filter_ctx_label,
avfilter_pad_get_name(link->srcpad, 0),
avfilter_pad_get_name(link->dstpad, 0));
if (link->type == AVMEDIA_TYPE_VIDEO) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(link->format);
fprintf(outfile,
"fmt:%s w:%d h:%d tb:%d/%d",
desc->name,
link->w, link->h,
link->time_base.num, link->time_base.den);
} else if (link->type == AVMEDIA_TYPE_AUDIO) {
char buf[255];
av_get_channel_layout_string(buf, sizeof(buf), -1,
link->channel_layout);
fprintf(outfile,
"fmt:%s sr:%d cl:%s tb:%d/%d",
av_get_sample_fmt_name(link->format),
link->sample_rate, buf,
link->time_base.num, link->time_base.den);
}
fprintf(outfile, "\" ];\n");
}
}
}
fprintf(outfile, "}\n");
}
static void add_pads_direct(struct lavfi *c, int dir, AVFilterContext *f,
AVFilterPad *pads, int num_pads, bool first_init)
{
for (int n = 0; n < num_pads; n++)
add_pad(c, dir, n, f, n, avfilter_pad_get_name(pads, n), first_init);
}
