shithub: libvpx

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vpxenc: warn against webm output to pipes

The WebM writer requires a seekable stream.

Change-Id: I192e00706a0685362d41b8d2faf80add63d564b9

--- a/vpxenc.c

+++ b/vpxenc.c

@@ -1349,6 +1349,12 @@

             return EXIT_FAILURE;

         }

+        if(write_webm && fseek(outfile, 0, SEEK_CUR))

+        {

+            fprintf(stderr, "WebM output to pipes not supported.\n");

+            return EXIT_FAILURE;

+        }

+

         if (stats_fn)

         {

             if (!stats_open_file(&stats, stats_fn, pass))