[gstreamer-bugs] [Bug 559467] New: gst-ffmpeg fails to build on macos intel

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-ffmpeg | Ver: HEAD CVS
           Summary: gst-ffmpeg fails to build on macos intel
           Product: GStreamer
           Version: HEAD CVS
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-ffmpeg
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: wingo at pobox.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


ld: absolute addressing (perhaps -mdynamic-no-pic) used in _rgb24tobgr24_MMX
from libswscale/rgb2rgb.o not allowed in slidable image
collect2: ld returned 1 exit status
make[5]: *** [libswscale/libswscale.0.dylib] Error 1


This is because libswscale (nominally a separate project) does not respect the
ENABLE_MMX defines, although it does have them available. I don't know what the
right solution is, but this works:

wingo at wingomac:~/src/yobuild/gst-ffmpeg/gst-libs/ext/ffmpeg/libswscale$ svn
diff
Index: rgb2rgb.c
===================================================================
--- rgb2rgb.c   (revision 27852)
+++ rgb2rgb.c   (working copy)
@@ -161,7 +161,7 @@
 #define RENAME(a) a ## _C
 #include "rgb2rgb_template.c"

-#if defined(ARCH_X86) && defined(CONFIG_GPL)
+#if defined(ARCH_X86) && defined(CONFIG_GPL) && (ENABLE_MMX || ENABLE_MMX2)

 //MMX versions
 #undef RENAME
@@ -200,7 +200,7 @@
 */

 void sws_rgb2rgb_init(int flags){
-#if (defined(HAVE_MMX2) || defined(HAVE_3DNOW) || defined(HAVE_MMX))  &&
defined(CONFIG_GPL)
+#if (defined(HAVE_MMX2) || defined(HAVE_3DNOW) || defined(HAVE_MMX))  &&
defined(CONFIG_GPL) && (ENABLE_MMX || ENABLE_MMX2)
     if (flags & SWS_CPU_CAPS_MMX2)
         rgb2rgb_init_MMX2();
     else if (flags & SWS_CPU_CAPS_3DNOW)


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