shithub: libvpx

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fix peek_si to enable 1 byte show existing frames.

The test for this is in test vector code ( show existing frames will
fail ).  I can't check it in disabled as I'm changing the generic
test code to do this:

https://gerrit.chromium.org/gerrit/#/c/70569/


Change-Id: I5ab324f0cb7df06316a949af0f7fc089f4a3d466

--- a/vp9/vp9_dx_iface.c

+++ b/vp9/vp9_dx_iface.c

@@ -102,9 +102,6 @@

                                                 void *decrypt_state) {

   uint8_t clear_buffer[9];

-  if (data_sz <= 8)

-    return VPX_CODEC_UNSUP_BITSTREAM;

-

   if (data + data_sz <= data)

     return VPX_CODEC_INVALID_PARAM;

@@ -125,11 +122,15 @@

     if (frame_marker != VP9_FRAME_MARKER)

       return VPX_CODEC_UNSUP_BITSTREAM;

+

     if (version > 1) return VPX_CODEC_UNSUP_BITSTREAM;

     if (vp9_rb_read_bit(&rb)) {  // show an existing frame

       return VPX_CODEC_OK;

     }

+

+    if (data_sz <= 8)

+      return VPX_CODEC_UNSUP_BITSTREAM;

     si->is_kf = !vp9_rb_read_bit(&rb);

     if (si->is_kf) {

-- 

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