lavfi: add a slice threading infrastructure

Mostly based on libavcodec's

1 files changed, 12 insertions, 0 deletions

diff --git a/libavfilter/internal.h b/libavfilter/internal.h
index 8e8a13f084..bdbbe4498a 100644
--- a/libavfilter/internal.h
+++ b/libavfilter/internal.h
@@ -25,6 +25,7 @@
  */
 
 #include "avfilter.h"
+#include "thread.h"
 
 #if !FF_API_AVFILTERPAD_PUBLIC
 /**
@@ -117,6 +118,17 @@ struct AVFilterPad {
 };
 #endif
 
+struct AVFilterGraphInternal {
+    void *thread;
+    int (*thread_execute)(AVFilterContext *ctx, action_func *func, void *arg,
+                          int *ret, int nb_jobs);
+};
+
+struct AVFilterInternal {
+    int (*execute)(AVFilterContext *ctx, action_func *func, void *arg,
+                   int *ret, int nb_jobs);
+};
+
 /** default handler for freeing audio/video buffer when there are no references left */
 void ff_avfilter_default_free_buffer(AVFilterBuffer *buf);