-attribute_deprecated
-int av_buffersink_read(AVFilterContext *ctx, AVFilterBufferRef **buf);
-
-/**
- * Same as av_buffersink_read, but with the ability to specify the number of
- * samples read. This function is less efficient than av_buffersink_read(),
- * because it copies the data around.
- *
- * @param ctx pointer to a context of the abuffersink AVFilter.
- * @param buf pointer to the buffer will be written here if buf is non-NULL. buf
- * must be freed by the caller using avfilter_unref_buffer(). buf
- * will contain exactly nb_samples audio samples, except at the end
- * of stream, when it can contain less than nb_samples.
- * Buf may also be NULL to query whether a buffer is ready to be
- * output.
- *
- * @warning do not mix this function with av_buffersink_read(). Use only one or
- * the other with a single sink, not both.
- */
-attribute_deprecated
-int av_buffersink_read_samples(AVFilterContext *ctx, AVFilterBufferRef **buf,
- int nb_samples);
-#endif