Signed-off-by: Marton Balint <c...@passwd.hu>
---
doc/APIchanges | 3 +++
libavfilter/avfilter.h | 8 ++++++++
libavfilter/avfiltergraph.c | 4 ++++
libavfilter/version.h | 2 +-
4 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index 9c03e541fd..797879f769 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2025-03-28
API changes, most recent first:
+2025-07-xx - xxxxxxxxxd - lavfi 11.2.100 - avfilter.h
+ Add AVFilterGraph->max_buffered_frames.
+
2025-07-01 - 39d5a998bd - lavc 62.4.101 - packet.h
Add AV_PKT_DATA_3D_REFERENCE_DISPLAYS.
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index f85929dc5c..d2571b1404 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -629,6 +629,14 @@ typedef struct AVFilterGraph {
avfilter_execute_func *execute;
char *aresample_swr_opts; ///< swr options to use for the auto-inserted
aresample filters, Access ONLY through AVOptions
+
+ /**
+ * Sets the maximum number of buffered frames in the filtergraph combined.
+ *
+ * Zero means no limit. This field must be set before calling
+ * avfilter_graph_config().
+ */
+ unsigned max_buffered_frames;
} AVFilterGraph;
/**
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index 38b89db22a..86da0b9975 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -56,6 +56,8 @@ static const AVOption filtergraph_options[] = {
AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, F|V },
{"aresample_swr_opts" , "default aresample filter options" ,
OFFSET(aresample_swr_opts) ,
AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, F|A },
+ {"max_buffered_frames" , "maximum number of buffered frames allowed",
OFFSET(max_buffered_frames),
+ AV_OPT_TYPE_UINT, {.i64 = 0}, 0, UINT_MAX, F|V|A },
{ NULL },
};
@@ -1296,6 +1298,8 @@ int avfilter_graph_config(AVFilterGraph *graphctx, void
*log_ctx)
{
int ret;
+ if (graphctx->max_buffered_frames)
+ fffiltergraph(graphctx)->frame_queues.max_queued =
graphctx->max_buffered_frames;
if ((ret = graph_check_validity(graphctx, log_ctx)))
return ret;
if ((ret = graph_config_formats(graphctx, log_ctx)))
diff --git a/libavfilter/version.h b/libavfilter/version.h
index 1e884d9b44..bece922c7f 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -31,7 +31,7 @@
#include "version_major.h"
-#define LIBAVFILTER_VERSION_MINOR 1
+#define LIBAVFILTER_VERSION_MINOR 2
#define LIBAVFILTER_VERSION_MICRO 100
--
2.43.0
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