[FFmpeg-devel] [PATCH 1/2] Implement avfilter_graph_alloc().

[Stefano Sabatini]

---
 doc/APIchanges              |    3 +++
 ffmpeg.c                    |    2 +-
 ffplay.c                    |    2 +-
 libavfilter/avfiltergraph.c |    5 +++++
 libavfilter/avfiltergraph.h |    5 +++++
 5 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/doc/APIchanges b/doc/APIchanges
index b92e5dc..4156c1b 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,9 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-XX-XX - rXXXXX - lavfi 1.XX.X - avfilter_graph_alloc()
+  Add the function avfilter_graph_alloc() in avfiltergraph.h.
+
 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
   Add the function avfilter_graph_config() in avfiltergraph.h.
 
diff --git a/ffmpeg.c b/ffmpeg.c
index edea4fd..b7da044 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -341,7 +341,7 @@ static int configure_filters(AVInputStream *ist, AVOutputStream *ost)
     char args[255];
     int ret;
 
-    graph = av_mallocz(sizeof(AVFilterGraph));
+    graph = avfilter_graph_alloc();
 
     if ((ret = avfilter_open(&ist->input_video_filter, avfilter_get_by_name("buffer"), "src")) < 0)
         return ret;
diff --git a/ffplay.c b/ffplay.c
index eecf16a..581e994 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -1794,7 +1794,7 @@ static int video_thread(void *arg)
     char sws_flags_str[128];
     FFSinkContext ffsink_ctx = { .pix_fmt = PIX_FMT_YUV420P };
     AVFilterContext *filt_src = NULL, *filt_out = NULL;
-    AVFilterGraph *graph = av_mallocz(sizeof(AVFilterGraph));
+    AVFilterGraph *graph = avfilter_graph_alloc();
     snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%d", sws_flags);
     graph->scale_sws_opts = av_strdup(sws_flags_str);
 
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index baffc51..6aa0815 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -26,6 +26,11 @@
 #include "avfilter.h"
 #include "avfiltergraph.h"
 
+AVFilterGraph *avfilter_graph_alloc(void)
+{
+    return av_mallocz(sizeof(AVFilterGraph));
+}
+
 void avfilter_graph_destroy(AVFilterGraph *graph)
 {
     for(; graph->filter_count > 0; graph->filter_count --)
diff --git a/libavfilter/avfiltergraph.h b/libavfilter/avfiltergraph.h
index efb9cc0..0b08f02 100644
--- a/libavfilter/avfiltergraph.h
+++ b/libavfilter/avfiltergraph.h
@@ -32,6 +32,11 @@ typedef struct AVFilterGraph {
 } AVFilterGraph;
 
 /**
+ * Allocate a filter graph.
+ */
+AVFilterGraph *avfilter_graph_alloc(void);
+
+/**
  * Get a filter instance with name name from graph.
  *
  * @return the pointer to the found filter instance or NULL if it
-- 
1.7.1