shithub: libvpx

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remove support for yuv 411

Previously we attempted to convert 411 input. Remove support
because malformed 411 input can cause the conversion to crash.

BUG=webm:1386

Change-Id: I3d41465a94867ee7f8eaa43fb76beb41f8fa644b

--- a/y4minput.c

+++ b/y4minput.c

@@ -975,6 +975,8 @@

     _y4m->aux_buf_sz =

         _y4m->aux_buf_read_sz + ((_y4m->pic_w + 1) / 2) * _y4m->pic_h;

     _y4m->convert = y4m_convert_411_420jpeg;

+    fprintf(stderr, "Unsupported conversion from yuv 411\n");

+    return -1;

   } else if (strcmp(_y4m->chroma_type, "444") == 0) {

     _y4m->src_c_dec_h = 1;

     _y4m->src_c_dec_v = 1;