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Skip y4m test on non-seekable input #79

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Skip y4m test on non-seekable input #79

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5 changes: 5 additions & 0 deletions app/oapv_app_y4m.h
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,11 @@ static int y4m_test(FILE *fp)

char buffer[9] = { 0 };

if (ftell(fp) < 0) {
/* Not seekable, so probably a pipe: assume not-y4m. */
return 0;
}

/*Peek to check if y4m header is present*/
if(!fread(buffer, 1, 8, fp))
return -1;
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