}
#if CONFIG_AVFILTER
+static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
+ AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
+{
+ int ret;
+ AVFilterInOut *outputs = NULL, *inputs = NULL;
+
+ if (filtergraph) {
+ outputs = avfilter_inout_alloc();
+ inputs = avfilter_inout_alloc();
+ if (!outputs || !inputs) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ outputs->name = av_strdup("in");
+ outputs->filter_ctx = source_ctx;
+ outputs->pad_idx = 0;
+ outputs->next = NULL;
+
+ inputs->name = av_strdup("out");
+ inputs->filter_ctx = sink_ctx;
+ inputs->pad_idx = 0;
+ inputs->next = NULL;
+
+ if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
+ goto fail;
+ } else {
+ if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
+ goto fail;
+ }
+
+ return avfilter_graph_config(graph, NULL);
+fail:
+ avfilter_inout_free(&outputs);
+ avfilter_inout_free(&inputs);
+ return ret;
+}
+
static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters)
{
static const enum PixelFormat pix_fmts[] = { PIX_FMT_YUV420P, PIX_FMT_NONE };
if ((ret = avfilter_link(filt_format, 0, filt_out, 0)) < 0)
return ret;
-
- if (vfilters) {
- AVFilterInOut *outputs = avfilter_inout_alloc();
- AVFilterInOut *inputs = avfilter_inout_alloc();
-
- outputs->name = av_strdup("in");
- outputs->filter_ctx = filt_src;
- outputs->pad_idx = 0;
- outputs->next = NULL;
-
- inputs->name = av_strdup("out");
- inputs->filter_ctx = filt_format;
- inputs->pad_idx = 0;
- inputs->next = NULL;
-
- if ((ret = avfilter_graph_parse(graph, vfilters, &inputs, &outputs, NULL)) < 0)
- return ret;
- } else {
- if ((ret = avfilter_link(filt_src, 0, filt_format, 0)) < 0)
- return ret;
- }
-
- if ((ret = avfilter_graph_config(graph, NULL)) < 0)
+ if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_format)) < 0)
return ret;
is->in_video_filter = filt_src;