Im trying to walk the filtergraphs chain using code to see what is happening
for (i = 0; i < nb_filtergraphs; i++) {
FilterGraph *fg = filtergraphs[i];
int j;
av_log( NULL, AV_LOG_WARNING, "Filter %3d %s [%d, %d]\n",
fg->index, fg->graph_desc, fg->nb_inputs, fg->nb_outputs);
for (j = 0; j < fg->nb_inputs; j++) {
av_log( NULL, AV_LOG_WARNING, " Input %3d %s\n",
j, fg->inputs[j]->name);
}
for(j = 0; j < fg->nb_outputs; j++) {
av_log( NULL, AV_LOG_WARNING, " Output %3d %s\n",
j, fg->outputs[j]->name);
}
}
Now with this simple
filter'scale=640:360,delogo=100:100:100:100,drawbox=10:10:16:9:4:color=yellow'
I get
Filter 0
scale=640:360,delogo=100:100:100:100,drawbox=10:10:16:9:4:color=yellow [1, 1]
Input 0 scale
Output 0 drawbox
Filter 1 (null) [1, 1]
Input 0 (null)
Output 0 (null)
Where is the delogo, is there another chain i need to walk?
joolz
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