4xm: check that bits per sample is strictly positive

[ffmpeg] / libavfilter / buffersrc.h

diff --git a/libavfilter/buffersrc.h b/libavfilter/buffersrc.h
index 918a54faee88895d5032e279ed39be6cacecafd0..c6f7ff964b5d503edfcedf5bff5a72bca1bae64e 100644 (file)
--- a/libavfilter/buffersrc.h
+++ b/libavfilter/buffersrc.h
@@ -27,13 +27,47 @@
 
 #include "avfilter.h"
 
+#if FF_API_AVFILTERBUFFER
 /**
  * Add a buffer to the filtergraph s.
  *
  * @param buf buffer containing frame data to be passed down the filtergraph.
  * This function will take ownership of buf, the user must not free it.
  * A NULL buf signals EOF -- i.e. no more frames will be sent to this filter.
+ *
+ * @deprecated use av_buffersrc_write_frame() or av_buffersrc_add_frame()
  */
+attribute_deprecated
 int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf);
+#endif
+
+/**
+ * Add a frame to the buffer source.
+ *
+ * @param s an instance of the buffersrc filter.
+ * @param frame frame to be added. If the frame is reference counted, this
+ * function will make a new reference to it. Otherwise the frame data will be
+ * copied.
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+int av_buffersrc_write_frame(AVFilterContext *s, const AVFrame *frame);
+
+/**
+ * Add a frame to the buffer source.
+ *
+ * @param s an instance of the buffersrc filter.
+ * @param frame frame to be added. If the frame is reference counted, this
+ * function will take ownership of the reference(s) and reset the frame.
+ * Otherwise the frame data will be copied. If this function returns an error,
+ * the input frame is not touched.
+ *
+ * @return 0 on success, a negative AVERROR on error.
+ *
+ * @note the difference between this function and av_buffersrc_write_frame() is
+ * that av_buffersrc_write_frame() creates a new reference to the input frame,
+ * while this function takes ownership of the reference passed to it.
+ */
+int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame);
 
 #endif /* AVFILTER_BUFFERSRC_H */