shithub: dav1d

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section5: use signed type for seeking backwards

Should fix failures of 'section5' sample on 32-bit systems.

--- a/meson.build

+++ b/meson.build

@@ -98,6 +98,7 @@

     cdata.set('UNICODE',                1) # Define to 1 for Unicode (Wide Chars) APIs

     cdata.set('_UNICODE',               1) # Define to 1 for Unicode (Wide Chars) APIs

     cdata.set('__USE_MINGW_ANSI_STDIO', 1) # Define to force use of MinGW printf

+    cdata.set('_CRT_DECLARE_NONSTDC_NAMES', 1) # Define to get off_t from sys/types.h on MSVC

     if cc.has_function('fseeko', prefix : '#include <stdio.h>', args : test_args)

         cdata.set('_FILE_OFFSET_BITS', 64) # Not set by default by Meson on Windows

     else

--- a/tools/input/section5.c

+++ b/tools/input/section5.c

@@ -32,6 +32,7 @@

 #include <stdint.h>

 #include <stdlib.h>

 #include <string.h>

+#include <sys/types.h>

 #include "dav1d/headers.h"

@@ -157,7 +158,7 @@

         fseeko(c->f, len, SEEK_CUR); // skip packet, we'll read it below

     }

-    fseeko(c->f, -total_bytes, SEEK_CUR);

+    fseeko(c->f, -(off_t)total_bytes, SEEK_CUR);

     uint8_t *ptr = dav1d_data_create(data, total_bytes);

     if (!ptr) return -1;

     if (fread(ptr, total_bytes, 1, c->f) != 1) {