ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
}
+int init_complex_filtergraph(FilterGraph *fg)
+{
+ AVFilterInOut *inputs, *outputs, *cur;
+ AVFilterGraph *graph;
+ int ret = 0;
+
+ /* this graph is only used for determining the kinds of inputs
+ * and outputs we have, and is discarded on exit from this function */
+ graph = avfilter_graph_alloc();
+ if (!graph)
+ return AVERROR(ENOMEM);
+
+ ret = avfilter_graph_parse2(graph, fg->graph_desc, &inputs, &outputs);
+ if (ret < 0)
+ goto fail;
+
+ for (cur = inputs; cur; cur = cur->next)
+ init_input_filter(fg, cur);
+
+ for (cur = outputs; cur;) {
+ GROW_ARRAY(fg->outputs, fg->nb_outputs);
+ fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]));
+ if (!fg->outputs[fg->nb_outputs - 1])
+ exit_program(1);
+
+ fg->outputs[fg->nb_outputs - 1]->graph = fg;
+ fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
+ fg->outputs[fg->nb_outputs - 1]->type = avfilter_pad_get_type(cur->filter_ctx->output_pads,
+ cur->pad_idx);
+ cur = cur->next;
+ fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
+ }
+
+fail:
+ avfilter_inout_free(&inputs);
+ avfilter_graph_free(&graph);
+ return ret;
+}
+
static int insert_trim(int64_t start_time, int64_t duration,
AVFilterContext **last_filter, int *pad_idx,
const char *filter_name)
av_freep(&ofilter->name);
DESCRIBE_FILTER_LINK(ofilter, out, 0);
+ if (!ofilter->ost) {
+ av_log(NULL, AV_LOG_FATAL, "Filter %s has a unconnected output\n", ofilter->name);
+ exit_program(1);
+ }
+
switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
int configure_filtergraph(FilterGraph *fg)
{
AVFilterInOut *inputs, *outputs, *cur;
- int ret, i, init = !fg->graph, simple = !fg->graph_desc;
+ int ret, i, simple = !fg->graph_desc;
const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
fg->graph_desc;
return AVERROR(EINVAL);
}
- for (cur = inputs; !simple && init && cur; cur = cur->next)
- init_input_filter(fg, cur);
-
for (cur = inputs, i = 0; cur; cur = cur->next, i++)
if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0) {
avfilter_inout_free(&inputs);
}
avfilter_inout_free(&inputs);
- if (!init || simple) {
- /* we already know the mappings between lavfi outputs and output streams,
- * so we can finish the setup */
- for (cur = outputs, i = 0; cur; cur = cur->next, i++)
- configure_output_filter(fg, fg->outputs[i], cur);
- avfilter_inout_free(&outputs);
+ for (cur = outputs, i = 0; cur; cur = cur->next, i++)
+ configure_output_filter(fg, fg->outputs[i], cur);
+ avfilter_inout_free(&outputs);
- if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
- return ret;
- } else {
- /* wait until output mappings are processed */
- for (cur = outputs; cur;) {
- GROW_ARRAY(fg->outputs, fg->nb_outputs);
- if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
- exit_program(1);
- fg->outputs[fg->nb_outputs - 1]->graph = fg;
- fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
- cur = cur->next;
- fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
- }
- }
+ if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
+ return ret;
fg->reconfiguration = 1;