Bug#975441: x264 silently disables gpac support with gpac 1.0.1

[Christopher Wellons <wellons@nullprogram.com>]

Package: x264
Version: 2:0.160.3011+gitcde9a93-2+b2
Followup-For: Bug #975441

I can confirm that the upstream patch works. When applied, MP4 support is
restored in my build. I've attached the tested, refreshed patch.

commit 7c2004b58c26da661618262c9c06b73ad3a9ff6c
Author: A. David <aurelien.david@telecom-paristech.fr>
Date:   Thu Jul 2 19:45:50 2020 +0200

    mp4: Update GPAC support to v0.8.0 or later

--- a/configure
+++ b/configure
@@ -1240,15 +1240,16 @@
     gpac="no"
     GPAC_LIBS="-lgpac"
     cc_check "" -lz && GPAC_LIBS="$GPAC_LIBS -lz"
+    cc_check "" -ldl && GPAC_LIBS="$GPAC_LIBS -ldl"
     if [ "$SYS" = "WINDOWS" ] ; then
         cc_check "" -lws2_32 && GPAC_LIBS="$GPAC_LIBS -lws2_32"
         cc_check "" -lwinmm && GPAC_LIBS="$GPAC_LIBS -lwinmm"
     fi
     if cc_check gpac/isomedia.h "$GPAC_LIBS" "gf_isom_close(0);" ; then
-        if cc_check gpac/isomedia.h "$GPAC_LIBS" "gf_isom_set_pixel_aspect_ratio(0,0,0,0,0);" ; then
+        if cc_check gpac/isomedia.h "$GPAC_LIBS" "gf_isom_set_pixel_aspect_ratio(0,0,0,0,0,0);" ; then
             gpac="yes"
         else
-            echo "Warning: gpac is too old, update to 2007-06-21 UTC or later"
+            echo "Warning: gpac is too old, update to v0.8.0 or later"
         fi
     fi
 fi
--- a/output/mp4.c
+++ b/output/mp4.c
@@ -147,7 +147,11 @@
             {
                 uint32_t mvhd_timescale = gf_isom_get_timescale( p_mp4->p_file );
                 uint64_t tkhd_duration = (uint64_t)( mdhd_duration * ( (double)mvhd_timescale / p_mp4->i_time_res ) );
+#if GPAC_VERSION_MAJOR > 8
+                gf_isom_append_edit( p_mp4->p_file, p_mp4->i_track, tkhd_duration, sample->CTS_Offset, GF_ISOM_EDIT_NORMAL );
+#else
                 gf_isom_append_edit_segment( p_mp4->p_file, p_mp4->i_track, tkhd_duration, sample->CTS_Offset, GF_ISOM_EDIT_NORMAL );
+#endif
             }
             gf_isom_sample_del( &sample );
 
@@ -233,7 +237,7 @@
             dw *= sar;
         else
             dh /= sar;
-        gf_isom_set_pixel_aspect_ratio( p_mp4->p_file, p_mp4->i_track, p_mp4->i_descidx, p_param->vui.i_sar_width, p_param->vui.i_sar_height );
+        gf_isom_set_pixel_aspect_ratio( p_mp4->p_file, p_mp4->i_track, p_mp4->i_descidx, p_param->vui.i_sar_width, p_param->vui.i_sar_height, 0 );
         gf_isom_set_track_layout_info( p_mp4->p_file, p_mp4->i_track, dw, dh, 0, 0, 0 );
     }