summaryrefslogtreecommitdiff
path: root/configure.ac
blob: 87aef0e2d26ac05c869eeba836a9b567f2809918 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
# gstreamer-vaapi package version number
m4_define([gst_vaapi_major_version], [0])
m4_define([gst_vaapi_minor_version], [7])
m4_define([gst_vaapi_micro_version], [0])
m4_define([gst_vaapi_pre_version],   [0])
m4_define([gst_vaapi_version],
          [gst_vaapi_major_version.gst_vaapi_minor_version.gst_vaapi_micro_version])
m4_if(gst_vaapi_pre_version, [0], [], [
m4_append([gst_vaapi_version], gst_vaapi_pre_version, [.pre])
])

# Configure defaults
m4_define([default_glapi],              [any])

# gstreamer-vaapi library (libtool) version number
m4_define([gst_vaapi_lt_current],       [7])
m4_define([gst2_vaapi_lt_current_bias], [4])
m4_define([gst4_vaapi_lt_current_bias], [5])
m4_define([gst6_vaapi_lt_current_bias], [6])
m4_define([gst8_vaapi_lt_current_bias], [7])
m4_define([gst_vaapi_lt_revision],      [0])
m4_define([gst_vaapi_lt_age],           [0])

# glib version number
m4_define([glib_version], [2.32])

# gmodule version number
m4_define([gmodule_version], [2.32])

# gstreamer version number
m4_define([gst_api_version],            [autodetect])
m4_define([gst12_version],              [1.1.90])
m4_define([gst12_plugins_base_version], [1.1.0])
m4_define([gst12_plugins_bad_version],  [1.1.0])
m4_define([gst14_version],              [1.2.90])
m4_define([gst14_plugins_base_version], [1.3.0])
m4_define([gst14_plugins_bad_version],  [1.3.0])
m4_define([gst16_version],              [1.5.0])
m4_define([gst16_plugins_base_version], [1.5.0])
m4_define([gst16_plugins_bad_version],  [1.5.0])
m4_define([gst18_version],              [1.7.0])
m4_define([gst18_plugins_base_version], [1.7.0])
m4_define([gst18_plugins_bad_version],  [1.7.0])

# Wayland minimum version number
m4_define([wayland_api_version], [1.0.2])

# VA-API minimum version number
m4_define([va_api_version],     [0.30.4])
m4_define([va_api_enc_version], [0.34.0])
m4_define([va_api_drm_version], [0.33.0])
m4_define([va_api_x11_version], [0.31.0])
m4_define([va_api_wld_version], [0.33.0])

# libva package version number
m4_define([libva_enc_package_version], [1.2.0])
m4_define([libva_drm_package_version], [1.1.0])
m4_define([libva_x11_package_version], [1.0.3])
m4_define([libva_wld_package_version], [1.1.0])

# gtk-doc version number
# XXX: introspection annotations require gtk-doc >= 1.12
m4_define([gtkdoc_version], [1.9])

AC_PREREQ([2.66])
AC_INIT([gst_vaapi], [gst_vaapi_version],
    [gwenole.beauchesne@intel.com, sreerenj.balachandran@intel.com],
    [gstreamer-vaapi])

AC_CONFIG_HEADERS([config.h])
AC_CONFIG_SRCDIR([Makefile.am])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_AUX_DIR([build-aux])

AC_CANONICAL_TARGET

AM_INIT_AUTOMAKE([1.11 tar-ustar no-dist-gzip dist-bzip2])

TODAY="`LC_ALL=C date +'%a, %d %b %Y %X %z'`"
AC_SUBST(TODAY)

LIBVA_PACKAGE_VERSION=libva_x11_package_version
AC_SUBST(LIBVA_PACKAGE_VERSION)

WAYLAND_API_VERSION=wayland_api_version
AC_SUBST(WAYLAND_API_VERSION)

dnl Use pretty build output with automake >= 1.11
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])], [
  AM_DEFAULT_VERBOSITY=1
  AC_SUBST(AM_DEFAULT_VERBOSITY)
])

dnl Check for tools
AC_PROG_CC
AM_PROG_CC_C_O

AC_ARG_VAR([GIT], [Path to git program, if any])
AC_PATH_PROG([GIT], [git])
AM_CONDITIONAL([HAVE_GIT], [test -n "$GIT"])

dnl Initialize libtool
LT_PREREQ([2.2])
LT_INIT

AC_ARG_ENABLE(builtin_videoparsers,
    AS_HELP_STRING([--enable-builtin-videoparsers],
                   [enable built-in videoparsers @<:@default=yes@:>@]),
    [], [enable_builtin_videoparsers="yes"])

AC_ARG_ENABLE(builtin_codecparsers,
    AS_HELP_STRING([--enable-builtin-codecparsers],
                   [enable built-in codecparsers @<:@default=yes@:>@]),
    [], [enable_builtin_codecparsers="yes"])

AC_ARG_ENABLE(builtin_libvpx,
    AS_HELP_STRING([--enable-builtin-libvpx],
                   [enable built-in libvpx @<:@default=yes@:>@]),
    [], [enable_builtin_libvpx="yes"])

AC_ARG_ENABLE([encoders],
    AS_HELP_STRING([--enable-encoders],
                   [enable video encoders @<:@default=yes@:>@]),
    [], [enable_encoders="yes"])

AC_ARG_ENABLE(drm,
    AS_HELP_STRING([--enable-drm],
                   [enable DRM backend @<:@default=yes@:>@]),
    [], [enable_drm="yes"])

AC_ARG_ENABLE(x11,
    AS_HELP_STRING([--enable-x11],
                   [enable X11 output @<:@default=yes@:>@]),
    [], [enable_x11="yes"])

AC_ARG_ENABLE(glx,
    AS_HELP_STRING([--enable-glx],
                   [enable OpenGL/X11 output @<:@default=yes@:>@]),
    [], [enable_glx="yes"])

AC_ARG_ENABLE(wayland,
    AC_HELP_STRING([--enable-wayland],
                   [enable Wayland output @<:@default=yes@:>@]),
    [], [enable_wayland="yes"])

AC_ARG_ENABLE([egl],
    AS_HELP_STRING([--enable-egl],
        [enable EGL output @<:@default=yes@:>@]),
    [], [enable_egl="yes"])

AC_ARG_WITH([glapi],
    AS_HELP_STRING([--with-glapi=APIs],
        [build with the specified OpenGL APIs @<:@default=default_glapi@:>@]),
    [GLAPI="$with_glapi"], [GLAPI=default_glapi])


dnl Check fr YASM
AC_ARG_VAR([YASM], [Path to yasm program, if any])
AC_PATH_PROG([YASM], [yasm])
if test -z "$YASM" -a "$enable_builtin_libvpx" = "yes"; then
    AC_MSG_ERROR([yasm is needed to build libvpx sources])
fi

dnl Check for PATCH
AC_ARG_VAR([PATCH], [Path to patch program, if any])
AC_PATH_PROG([PATCH], [patch])
if test -z "$PATCH" -a "$enable_builtin_videoparsers" = "yes"; then
    AC_MSG_ERROR([patch is needed to apply patches for built videoparsers
sources])
fi

dnl Check for basic libraries
AC_CHECK_LIB(m, tan)

dnl Check for Gtk doc
GTKDOC_VERSION=gtkdoc_version
# gtkdocize greps for '^GTK_DOC_CHECK', so it needs to be on its own line
m4_ifdef([GTK_DOC_CHECK], [
GTK_DOC_CHECK([$GTKDOC_VERSION], [--flavour no-tmpl])], [
AM_CONDITIONAL([ENABLE_GTK_DOC], [false])])
AC_SUBST(GTKDOC_VERSION)

dnl Check for GLib
GLIB_VERSION_REQUIRED=glib_version
PKG_CHECK_MODULES([GLIB], [glib-2.0 >= $GLIB_VERSION_REQUIRED])
AC_SUBST(GLIB_VERSION_REQUIRED)

dnl Check to see if dlopen is in default libraries (like Solaris, which
dnl has it in libc), or if libdl is needed to get it.
AC_CHECK_FUNC([dlopen], [], [
    AC_CHECK_LIB([dl], [dlopen], [DLOPEN_LIBS="-ldl"])])
AC_SUBST([DLOPEN_LIBS])

dnl ---------------------------------------------------------------------------
dnl -- GStreamer                                                             --
dnl ---------------------------------------------------------------------------
AC_MSG_CHECKING([for GStreamer API version])
if $PKG_CONFIG --exists "gstreamer-1.0"; then
    gst_version=`$PKG_CONFIG --modversion "gstreamer-1.0"`
    gst_major_version=`echo "$gst_version" | cut -d'.' -f1`
    gst_minor_version=`echo "$gst_version" | cut -d'.' -f2`
    GST_API_VERSION="${gst_major_version}.${gst_minor_version}"
    GST_PKG_VERSION="1.0"
fi
if test -z "$GST_PKG_VERSION"; then
    AC_MSG_ERROR([gstreamer-1.0 was not found])
fi
AC_MSG_RESULT([$GST_API_VERSION])

AC_DEFINE_UNQUOTED([GST_API_VERSION_S], ["$GST_API_VERSION"],
    [Defined to the string representation of GStreamer version])

dnl Versions for GStreamer and plugins-base
case $GST_API_VERSION in
1.2)
    GST_VERSION_REQUIRED=gst12_version
    GST_PLUGINS_BASE_VERSION_REQUIRED=gst12_plugins_base_version
    GST_PLUGINS_BAD_VERSION_REQUIRED=gst12_plugins_bad_version
    ;;
1.4)
    GST_VERSION_REQUIRED=gst14_version
    GST_PLUGINS_BASE_VERSION_REQUIRED=gst14_plugins_base_version
    GST_PLUGINS_BAD_VERSION_REQUIRED=gst14_plugins_bad_version
    ;;
1.[[5-6]])
    GST_VERSION_REQUIRED=gst16_version
    GST_PLUGINS_BASE_VERSION_REQUIRED=gst16_plugins_base_version
    GST_PLUGINS_BAD_VERSION_REQUIRED=gst16_plugins_bad_version
    ;;
1.[[7-8]])
    GST_VERSION_REQUIRED=gst18_version
    GST_PLUGINS_BASE_VERSION_REQUIRED=gst18_plugins_base_version
    GST_PLUGINS_BAD_VERSION_REQUIRED=gst18_plugins_bad_version
    ;;
*)
    AC_MSG_ERROR([unsupported GStreamer API version $GST_API_VERSION])
    ;;
esac
AC_SUBST(GST_API_VERSION)
AC_SUBST(GST_VERSION_REQUIRED)
AC_SUBST(GST_PLUGINS_BASE_VERSION_REQUIRED)
AC_SUBST(GST_PLUGINS_BAD_VERSION_REQUIRED)

USE_GST_API_1_2p="no"
USE_GST_API_1_4p="no"
AS_VERSION_COMPARE([$GST_API_VERSION], [1.2],
    [], [USE_GST_API_1_2p="yes"], [USE_GST_API_1_2p="yes"])
AS_VERSION_COMPARE([$GST_API_VERSION], [1.4],
    [], [USE_GST_API_1_4p="yes"], [USE_GST_API_1_4p="yes"])
AM_CONDITIONAL([USE_GST_API_1_2p], [test "$USE_GST_API_1_2p" = "yes"])
AM_CONDITIONAL([USE_GST_API_1_4p], [test "$USE_GST_API_1_4p" = "yes"])

AC_SUBST([GST_PKG_VERSION])

AC_DEFINE_UNQUOTED([GST_PKG_VERSION_S], ["$GST_PKG_VERSION"],
    [Defined to the string representation of GStreamer API version])

if test "$GST_API_VERSION" = "1.2"; then
    AC_MSG_WARN([support for GStreamer 1.2 is obsolete, and will be removed])
fi

dnl GStreamer Core
PKG_CHECK_MODULES([GST],
    [gstreamer-$GST_PKG_VERSION >= $GST_VERSION_REQUIRED])
PKG_CHECK_MODULES([GST_BASE],
    [gstreamer-base-$GST_PKG_VERSION >= $GST_VERSION_REQUIRED])

dnl GStreamer -base plugins
PKG_CHECK_MODULES([GST_PLUGINS_BASE],
    [gstreamer-plugins-base-$GST_PKG_VERSION >= $GST_PLUGINS_BASE_VERSION_REQUIRED])
if test "$GST_API_VERSION" = "0.10"; then
PKG_CHECK_MODULES([GST_INTERFACES],
    [gstreamer-interfaces-$GST_PKG_VERSION >= $GST_PLUGINS_BASE_VERSION_REQUIRED])
fi

dnl ... gst_dmabuf_memory_get_fd (gstreamer-allocators)
PKG_CHECK_MODULES([GST_ALLOCATORS],
    [gstreamer-allocators-$GST_PKG_VERSION >= $GST_PLUGINS_BASE_VERSION_REQUIRED])

dnl ... GstVideoOverlayComposition (gstreamer-video)
PKG_CHECK_MODULES([GST_VIDEO],
    [gstreamer-video-$GST_PKG_VERSION >= $GST_PLUGINS_BASE_VERSION_REQUIRED])

dnl GStreamer -bad plugins (deprecated in GStreamer v1.2)
if test "$USE_GST_API_1_2p" != "yes" && test "$USE_GST_API_1_4p" != "yes"; then
PKG_CHECK_MODULES([GST_BASEVIDEO],
    [gstreamer-basevideo-$GST_PKG_VERSION >= $GST_PLUGINS_BAD_VERSION_REQUIRED])
fi

dnl ... bitstream parsers
if test "$enable_builtin_codecparsers" = "yes"; then
    ac_cv_have_gst_mpeg2_parser="no"
    ac_cv_have_gst_h264_parser="no"
    ac_cv_have_gst_jpeg_parser="no"
    ac_cv_have_gst_vp8_parser="no"
    ac_cv_have_gst_h265_parser="no"
    ac_cv_have_gst_vp9_parser="no"
else
PKG_CHECK_MODULES([GST_CODEC_PARSERS],
    [gstreamer-codecparsers-$GST_PKG_VERSION >= $GST_PLUGINS_BAD_VERSION_REQUIRED])
fi

dnl ... MPEG-2 parser, with the required extensions
AC_CACHE_CHECK([for MPEG-2 parser],
    ac_cv_have_gst_mpeg2_parser, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GST_CFLAGS $GST_CODEC_PARSERS_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $GST_LIBS $GST_CODEC_PARSERS_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <gst/codecparsers/gstmpegvideoparser.h>]],
            [[GstMpegVideoSequenceHdr seq_hdr;
              GstMpegVideoSequenceExt seq_ext;
              GstMpegVideoSequenceDisplayExt seq_dpy;
              GstMpegVideoSliceHdr slice_hdr;
              GstMpegVideoPacket packet;
              gst_mpeg_video_packet_parse_slice_header(&packet, &slice_hdr,
                  &seq_hdr, NULL);
              gst_mpeg_video_finalise_mpeg2_sequence_header(&seq_hdr,
                  &seq_ext, &seq_dpy);]])],
        [ac_cv_have_gst_mpeg2_parser="yes"],
        [ac_cv_have_gst_mpeg2_parser="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])
AM_CONDITIONAL([USE_LOCAL_CODEC_PARSERS_MPEG2],
    [test "$ac_cv_have_gst_mpeg2_parser" != "yes"])

dnl ... H.264 parser, with the required extensions
AC_CACHE_CHECK([for H.264 parser],
    ac_cv_have_gst_h264_parser, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GST_CFLAGS $GST_CODEC_PARSERS_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $GST_LIBS $GST_CODEC_PARSERS_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <gst/codecparsers/gsth264parser.h>]],
            [[GstH264SliceHdr slice_hdr;
              GstH264VUIParams vui_params;
              GstH264Profile profile = GST_H264_PROFILE_HIGH;
              slice_hdr.n_emulation_prevention_bytes = 0;
              vui_params.par_n = 0;
              vui_params.par_d = 0;
              GstH264SPS sps;
              sps.extension.mvc.num_views_minus1 = 1;
              GstH264NalUnit nalu;
              nalu.extension_type = GST_H264_NAL_EXTENSION_MVC;]])],
        [ac_cv_have_gst_h264_parser="yes"],
        [ac_cv_have_gst_h264_parser="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])
AM_CONDITIONAL([USE_LOCAL_CODEC_PARSERS_H264],
    [test "$ac_cv_have_gst_h264_parser" != "yes"])

dnl ... JPEG parser, not upstream yet
AC_CACHE_CHECK([for JPEG parser],
    ac_cv_have_gst_jpeg_parser, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GST_CFLAGS $GST_CODEC_PARSERS_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $GST_LIBS $GST_CODEC_PARSERS_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <gst/codecparsers/gstjpegparser.h>]],
            [[GstJpegImage jpeg_image;]])],
        [ac_cv_have_gst_jpeg_parser="yes"],
        [ac_cv_have_gst_jpeg_parser="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])
AM_CONDITIONAL([USE_LOCAL_CODEC_PARSERS_JPEG],
    [test "$ac_cv_have_gst_jpeg_parser" != "yes"])

dnl ... VP8 parser, not upstream yet
if test "$enable_builtin_libvpx" = "yes"; then
    ac_cv_have_gst_vp8_parser="no"
fi
AC_CACHE_CHECK([for VP8 parser],
    ac_cv_have_gst_vp8_parser, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GST_CFLAGS $GST_CODEC_PARSERS_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $GST_LIBS $GST_CODEC_PARSERS_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <gst/codecparsers/gstvp8parser.h>]],
            [[GstVp8FrameHdr frame_hdr;]])],
        [ac_cv_have_gst_vp8_parser="yes"],
        [ac_cv_have_gst_vp8_parser="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])
AM_CONDITIONAL([USE_LOCAL_CODEC_PARSERS_VP8],
    [test "$ac_cv_have_gst_vp8_parser" != "yes"])
AM_CONDITIONAL([USE_BUILTIN_LIBVPX], [test "$enable_builtin_libvpx" = "yes"])

dnl ... VP9 parser, with required extensions
AC_CACHE_CHECK([for VP9 parser],
    ac_cv_have_gst_vp9_parser, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GST_CFLAGS $GST_CODEC_PARSERS_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $GST_LIBS $GST_CODEC_PARSERS_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <gst/codecparsers/gstvp9parser.h>]],
            [[GstVp9FrameHdr frame_hdr;]])],
        [ac_cv_have_gst_vp9_parser="yes"],
        [ac_cv_have_gst_vp9_parser="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])
AM_CONDITIONAL([USE_LOCAL_CODEC_PARSERS_VP9],
    [test "$ac_cv_have_gst_vp9_parser" != "yes"])

dnl ... H.265 parser, with the required extensions
AC_CACHE_CHECK([for H.265 parser],
    ac_cv_have_gst_h265_parser, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GST_CFLAGS $GST_CODEC_PARSERS_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $GST_LIBS $GST_CODEC_PARSERS_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <gst/codecparsers/gsth265parser.h>]],
            [[GstH265SliceHdr slice_hdr;
              GstH265VUIParams vui_params;
              GstH265Profile profile = GST_H265_PROFILE_MAIN_STILL_PICTURE;
              slice_hdr.n_emulation_prevention_bytes = 0;
              vui_params.par_n = 0;
              vui_params.par_d = 0;
              GstH265SPS sps;
              sps.crop_rect_x = 0;
              sps.crop_rect_width = 0;]])],
        [ac_cv_have_gst_h265_parser="yes"],
        [ac_cv_have_gst_h265_parser="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])
AM_CONDITIONAL([USE_LOCAL_CODEC_PARSERS_H265],
    [test "$ac_cv_have_gst_h265_parser" != "yes"])

dnl ... video parsers
AM_CONDITIONAL([USE_LOCAL_VIDEO_PARSERS],
    [test "$enable_builtin_videoparsers" = "yes"])

dnl ... opengl helper libraries
HAVE_GSTGL=0
if test "$enable_glx" = "yes" -o "$enable_egl" = "yes"; then
    PKG_CHECK_MODULES([GST_GL],
        [gstreamer-gl-$GST_PKG_VERSION >= $GST_PLUGINS_BAD_VERSION_REQUIRED],
        [HAVE_GSTGL=1], [HAVE_GSTGL=0])
fi

if test $HAVE_GSTGL -eq 1; then
    AC_CACHE_CHECK([for GStreamer OpenGL helper libraries],
        [ac_cv_have_gst_gl_helpers], [
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $GST_GL_CFLAGS $GST_VIDEO_CFLAGS"
        saved_LIBS="$LIBS"
        LIBS="$saved_LIBS"
        AC_CHECK_HEADERS([gst/gl/gl.h], [:], [HAVE_GSTGL=0])
        AC_COMPILE_IFELSE(
            [AC_LANG_PROGRAM(
                [[#include <gst/gl/gl.h>]],
                [[GstGLContext gl_context;]])],
            [ac_cv_have_gst_gl_helpers="yes"],
            [ac_cv_have_gst_gl_helpers="no" HAVE_GSTGL=0]
        )
        CPPFLAGS="$saved_CPPFLAGS"
        LIBS="$saved_LIBS"
    ])
fi
AM_CONDITIONAL([USE_GST_GL_HELPERS], [test $HAVE_GSTGL -eq 1])

AC_DEFINE_UNQUOTED([USE_GST_GL_HELPERS], [$HAVE_GSTGL],
    [Defined to 1 if GStreamer OpenGL helper libraries are available])

if test "$enable_egl" = "yes" -a $HAVE_GSTGL -ne 1; then
    AC_MSG_WARN([GStreamer/GL helper libraries not found, disabling EGL support])
    enable_egl="no"
fi

case $GST_API_VERSION in
1.2)    lt_bias=gst2_vaapi_lt_current_bias;;
1.4)    lt_bias=gst4_vaapi_lt_current_bias;;
1.[[5-6]])    lt_bias=gst6_vaapi_lt_current_bias;;
1.[[7-8]])    lt_bias=gst8_vaapi_lt_current_bias;;
esac
GST_VAAPI_MAJOR_VERSION=`expr gst_vaapi_lt_current - "$lt_bias"`
AC_SUBST(GST_VAAPI_MAJOR_VERSION)

AC_DEFINE_UNQUOTED([GST_VAAPI_MAJOR_VERSION_S], ["$GST_VAAPI_MAJOR_VERSION"],
    [Defined to the string representation of gstreamer-vaapi major version])

dnl GST_VAAPI_LT_LDFLAGS:
GST_VAAPI_LT_CURRENT="$GST_VAAPI_MAJOR_VERSION"
GST_VAAPI_LT_REV=gst_vaapi_lt_revision
GST_VAAPI_LT_AGE=gst_vaapi_lt_age
GST_VAAPI_LT_VERSION="$GST_VAAPI_LT_CURRENT:$GST_VAAPI_LT_REV:$GST_VAAPI_LT_AGE"
GST_VAAPI_LT_LDFLAGS="-version-info $GST_VAAPI_LT_VERSION"
AC_SUBST(GST_VAAPI_LT_VERSION)
AC_SUBST(GST_VAAPI_LT_LDFLAGS)

dnl GST_ALL_LDFLAGS:
dnl LDFLAGS really should only contain flags, not libs - they get added before
dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
GST_ALL_LDFLAGS="-no-undefined"
AC_SUBST(GST_ALL_LDFLAGS)

dnl GST_PLUGIN_LDFLAGS:
dnl this really should only contain flags, not libs - they get added before
dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^([_]*gst_plugin_desc|gst_.*_get_type)\$\$' $GST_ALL_LDFLAGS"
AC_SUBST(GST_PLUGIN_LDFLAGS)

dnl Check for the GStreamer plugins directory
AC_ARG_VAR([GST_PLUGIN_PATH_1_0], [installation path for gstreamer-vaapi plugin elements for GStreamer 1.0])
AC_MSG_CHECKING([for GStreamer plugins directory])
if test -d "$GST_PLUGIN_PATH_1_0"; then
    GST_PLUGINS_DIR="$GST_PLUGIN_PATH_1_0"
else
    GST_PLUGINS_DIR=`$PKG_CONFIG gstreamer-$GST_PKG_VERSION --variable pluginsdir`
    if test -z "$GST_PLUGINS_DIR"; then
        GST_PLUGINS_DIR="\$(libdir)/gstreamer-$GST_PKG_VERSION"
    fi
fi
AC_MSG_RESULT([$GST_PLUGINS_DIR])
plugindir="$GST_PLUGINS_DIR"
AC_SUBST(plugindir)

dnl ---------------------------------------------------------------------------
dnl -- Renderers                                                             --
dnl ---------------------------------------------------------------------------

dnl Check for DRM/libudev
USE_DRM=0
if test "$enable_drm" = "yes"; then
    PKG_CHECK_MODULES(DRM, [libdrm], [USE_DRM=1], [USE_DRM=0])
    PKG_CHECK_MODULES(UDEV, [libudev], [:], [USE_DRM=0])

    if test $USE_DRM -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $DRM_CFLAGS"
        AC_CHECK_HEADERS([drm_fourcc.h], [:], [USE_DRM=0])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi

dnl Check for X11
USE_X11=0
if test "$enable_x11" = "yes"; then
    PKG_CHECK_MODULES(X11, [x11], [USE_X11=1], [USE_X11=0])
    if test $USE_X11 -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $X11_CFLAGS"
        AC_CHECK_HEADERS([X11/Xlib.h X11/Xutil.h X11/Xatom.h], [:], [USE_X11=0])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi

dnl Check for XKB library
HAVE_XKBLIB=0
if test $USE_X11 -eq 1; then
    AC_CHECK_HEADERS([X11/XKBlib.h], [HAVE_XKBLIB=1], [:])
fi
if test $HAVE_XKBLIB -eq 1; then
    AC_DEFINE_UNQUOTED([HAVE_XKBLIB], 1,
        [Defined to 1 if the XKB extension exists.])
fi

dnl Check for XRandR
HAVE_XRANDR=0
if test $USE_X11 -eq 1; then
    HAVE_XRANDR=1
    PKG_CHECK_MODULES([XRANDR], [xrandr], [:], [HAVE_XRANDR=0])
    if test $HAVE_XRANDR -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $XRANDR_CFLAGS"
        AC_CHECK_HEADERS([X11/extensions/Xrandr.h], [:], [HAVE_XRANDR=0])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi
if test $HAVE_XRANDR -eq 1; then
    AC_DEFINE_UNQUOTED(HAVE_XRANDR, 1,
        [Defined to 1 if the XRandR extension exists.])
fi

dnl Check for XRender
HAVE_XRENDER=0
if test $USE_X11 -eq 1; then
    HAVE_XRENDER=1
    PKG_CHECK_MODULES([XRENDER], [xrender], [:], [HAVE_XRENDER=0])
    if test $HAVE_XRENDER -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $XRENDER_CFLAGS"
        AC_CHECK_HEADERS([X11/extensions/Xrender.h], [:], [HAVE_XRENDER=0])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi
if test $HAVE_XRENDER -eq 1; then
    AC_DEFINE_UNQUOTED([HAVE_XRENDER], [1],
        [Defined to 1 if the XRender extension exists.])
fi

dnl OpenGL
enable_opengl="no"
if test "$enable_glx" = "yes"; then
    enable_opengl="yes"
fi
if test "$enable_egl" = "yes"; then
    enable_opengl="yes"
fi
GLES_VERSION_MASK=0

HAVE_GL=0
if test "$enable_opengl" = "yes"; then
case ",$GLAPI," in
(*,any,*|*,gl,*)
    HAVE_GL=1
    PKG_CHECK_MODULES([GL], [gl], [:], [HAVE_GL=0])
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GL_CFLAGS"
    AC_CHECK_HEADERS([GL/gl.h GL/glext.h], [:], [HAVE_GL=0], [
#ifdef HAVE_GL_GL_H
# include <GL/gl.h>
#endif
    ])
    CPPFLAGS="$saved_CPPFLAGS"
    ;;
esac
fi
GLES_VERSION_MASK=`expr $GLES_VERSION_MASK "+" $HAVE_GL "*" 1`

dnl OpenGL|ESv2
HAVE_GLESv2=0
if test "$enable_opengl" = "yes"; then
case ",$GLAPI," in
(*,any,*|*,gles2,*)
    HAVE_GLESv2=1
    PKG_CHECK_MODULES([GLES2], [glesv2], [:], [HAVE_GLESv2=0])
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GLES2_CFLAGS"
    AC_CHECK_HEADERS([GLES2/gl2.h GLES2/gl2ext.h], [:],
        [HAVE_GLESv2=0], [
#ifdef HAVE_GLES2_GL2_H
# include <GLES2/gl2.h>
#endif
    ])
    CPPFLAGS="$saved_CPPFLAGS"
    ;;
esac
fi
GLES_VERSION_MASK=`expr $GLES_VERSION_MASK "+" $HAVE_GLESv2 "*" 4`

dnl OpenGL|ESv3
HAVE_GLESv3=0
if test "$enable_opengl" = "yes"; then
case ",$GLAPI," in
(*,any,*|*,gles3,*)
    HAVE_GLESv3=1
    PKG_CHECK_MODULES([GLES3], [glesv2], [:], [HAVE_GLESv3=0])
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $GLES3_CFLAGS"
    AC_CHECK_HEADERS([GLES3/gl3.h GLES3/gl3ext.h GLES2/gl2ext.h], [:],
        [HAVE_GLESv3=0], [
#ifdef HAVE_GLES3_GL3_H
# include <GLES3/gl3.h>
#endif
    ])
    CPPFLAGS="$saved_CPPFLAGS"
    ;;
esac
fi
GLES_VERSION_MASK=`expr $GLES_VERSION_MASK "+" $HAVE_GLESv3 "*" 8`

dnl ... GLX
USE_GLX=0
if test "$enable_glx" = "yes" -a $HAVE_GL -eq 1 -a $USE_X11 -eq 1; then
    USE_GLX=1
    saved_CPPFLAGS="$CPPFLAGS"
    saved_LIBS="$LIBS"
    CPPFLAGS="$CPPFLAGS $GL_CFLAGS"
    LIBS="$LIBS $GL_LIBS"
    AC_CHECK_HEADERS([GL/glx.h], [:], [USE_GLX=0], [
#ifdef HAVE_GL_GL_H
# include <GL/gl.h>
#endif
    ])
    AC_CHECK_LIB([GL], [glXCreateContext], [:], [USE_GLX=0])
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
fi

dnl ... EGL
USE_EGL=0
if test "$enable_egl" = "yes" -a $GLES_VERSION_MASK -ne 0; then
    USE_EGL=1
    PKG_CHECK_MODULES([EGL], [egl], [:], [USE_EGL=0])
    saved_CPPFLAGS="$CPPFLAGS"
    saved_LIBS="$LIBS"
    AC_CHECK_HEADERS([EGL/egl.h], [:], [USE_EGL=0])
    AC_CHECK_LIB([EGL], [eglGetDisplay], [:], [USE_EGL=0])
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"

    dnl Check for GMODULE
    GMODULE_VERSION_REQUIRED=gmodule_version
    PKG_CHECK_MODULES([GMODULE], [gmodule-2.0 >= $GMODULE_VERSION_REQUIRED])
    AC_SUBST(GMODULE_VERSION_REQUIRED)
fi

dnl Check for Wayland
USE_WAYLAND=0
if test "$enable_wayland" = "yes"; then
    PKG_CHECK_MODULES(WAYLAND, [wayland-client >= wayland_api_version],
        [USE_WAYLAND=1], [USE_WAYLAND=0])

    if test $USE_WAYLAND -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $WAYLAND_CFLAGS"
        AC_CHECK_HEADERS([wayland-client.h], [:], [USE_WAYLAND=0])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi

dnl ---------------------------------------------------------------------------
dnl -- VA-API                                                                --
dnl ---------------------------------------------------------------------------

dnl Core API
LIBVA_PKGNAME="libva"
PKG_CHECK_MODULES(LIBVA, [$LIBVA_PKGNAME >= va_api_version])
AC_SUBST(LIBVA_PKGNAME)

VA_VERSION=`$PKG_CONFIG --modversion libva`
VA_MAJOR_VERSION=`echo "$VA_VERSION" | cut -d'.' -f1`
VA_MINOR_VERSION=`echo "$VA_VERSION" | cut -d'.' -f2`
VA_MICRO_VERSION=`echo "$VA_VERSION" | cut -d'.' -f3`
VA_VERSION_STR="$VA_VERSION"

dnl VA/DRM API
HAVE_VA_DRM=0
if test $USE_DRM -eq 1; then
    PKG_CHECK_MODULES([LIBVA_DRM], [libva-drm >= va_api_drm_version],
        [HAVE_VA_DRM=1], [USE_DRM=0])

    if test $HAVE_VA_DRM -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$LIBVA_DRM_CFLAGS"
        AC_CHECK_HEADERS([va/va_drm.h], [:], [HAVE_VA_DRM=0 USE_DRM=0])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi

dnl VA/X11 API
HAVE_VA_X11=0
LIBVA_X11_PKGNAME="libva-x11"
if test $USE_X11 -eq 1; then
    PKG_CHECK_MODULES(LIBVA_X11, [$LIBVA_X11_PKGNAME >= va_api_x11_version],
        [HAVE_VA_X11=1], [USE_X11=0])
fi
AC_SUBST(LIBVA_X11_PKGNAME)

dnl Check for va_dec_jpeg.h header
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
AC_CHECK_HEADERS([va/va_dec_jpeg.h], [], [], [#include <va/va.h>])
CPPFLAGS="$saved_CPPFLAGS"

dnl Check for JPEG decoding API (0.32.1+)
USE_JPEG_DECODER=0
AC_CACHE_CHECK([for JPEG decoding API],
    ac_cv_have_jpeg_decoding_api, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $LIBVA_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <va/va.h>
              #ifdef HAVE_VA_VA_DEC_JPEG_H
              #include <va/va_dec_jpeg.h>
              #endif
            ]],
            [[VAPictureParameterBufferJPEGBaseline pic_param;
              VASliceParameterBufferJPEGBaseline slice_param;
              VAHuffmanTableBufferJPEGBaseline huffman_table;
              VAIQMatrixBufferJPEGBaseline iq_matrix;]])],
        [ac_cv_have_jpeg_decoding_api="yes" USE_JPEG_DECODER=1],
        [ac_cv_have_jpeg_decoding_api="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])

dnl Check for va_dec_vp8.h header
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
AC_CHECK_HEADERS([va/va_dec_vp8.h], [], [], [#include <va/va.h>])
CPPFLAGS="$saved_CPPFLAGS"

dnl Check for VP8 decoding API (0.34+)
USE_VP8_DECODER=0
AC_CACHE_CHECK([for VP8 decoding API],
    ac_cv_have_vp8_decoding_api, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $LIBVA_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <va/va.h>
              #ifdef HAVE_VA_VA_DEC_VP8_H
              #include <va/va_dec_vp8.h>
              #endif
            ]],
            [[VAPictureParameterBufferVP8 pic_param;
              VASliceParameterBufferVP8 slice_param;
              VAProbabilityDataBufferVP8 prob_data;
              VAIQMatrixBufferVP8 iq_matrix;
              slice_param.slice_data_offset = 0;
              slice_param.slice_data_flag = 0;]])],
        [ac_cv_have_vp8_decoding_api="yes" USE_VP8_DECODER=1],
        [ac_cv_have_vp8_decoding_api="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])

dnl Check for va_dec_vp9.h header
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
AC_CHECK_HEADERS([va/va_dec_vp9.h], [], [], [#include <va/va.h>])
CPPFLAGS="$saved_CPPFLAGS"

dnl Check for VP9 decoding API (0.37+)
USE_VP9_DECODER=0
AC_CACHE_CHECK([for VP9 decoding API],
    ac_cv_have_vp9_decoding_api, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $LIBVA_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <va/va.h>
              #ifdef HAVE_VA_VA_DEC_VP9_H
              #include <va/va_dec_vp9.h>
              #endif
            ]],
            [[VADecPictureParameterBufferVP9 pic_param;
              VASliceParameterBufferVP9 slice_param;
              VASegmentParameterVP9 seg_param;
              slice_param.slice_data_offset = 0;
              slice_param.slice_data_flag = 0;]])],
        [ac_cv_have_vp9_decoding_api="yes" USE_VP9_DECODER=1],
        [ac_cv_have_vp9_decoding_api="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])

dnl Check for va_dec_hevc.h header
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
AC_CHECK_HEADERS([va/va_dec_hevc.h], [], [], [#include <va/va.h>])
CPPFLAGS="$saved_CPPFLAGS"

dnl Check for HEVC decoding API (0.38+)
USE_HEVC_DECODER=0
AC_CACHE_CHECK([for HEVC decoding API],
    ac_cv_have_hevc_decoding_api, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $LIBVA_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <va/va.h>
              #ifdef HAVE_VA_VA_DEC_HEVC_H
              #include <va/va_dec_hevc.h>
              #endif
            ]],
            [[VAPictureParameterBufferHEVC pic_param;
              VASliceParameterBufferHEVC slice_param;
              VAIQMatrixBufferHEVC iq_matrix;
              slice_param.slice_data_offset = 0;
              slice_param.slice_data_flag = 0;]])],
        [ac_cv_have_hevc_decoding_api="yes" USE_HEVC_DECODER=1],
        [ac_cv_have_hevc_decoding_api="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])

dnl Check for vpp (video post-processing) support
USE_VA_VPP=0
AC_CACHE_CHECK([for video post-postprocessing API],
    ac_cv_have_va_vpp_api, [
    saved_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
    saved_LIBS="$LIBS"
    LIBS="$LIBS $LIBVA_LIBS"
    AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
            [[#include <va/va.h>
              #include <va/va_vpp.h>]],
            [[VADisplay va_dpy;
              VAContextID vpp_ctx;
              VAProcFilterType filters[VAProcFilterCount];
              unsigned int num_filters = VAProcFilterCount;
              vaQueryVideoProcFilters(va_dpy, vpp_ctx, filters, &num_filters);
              ]])],
        [ac_cv_have_va_vpp_api="yes" USE_VA_VPP=1],
        [ac_cv_have_va_vpp_api="no"]
    )
    CPPFLAGS="$saved_CPPFLAGS"
    LIBS="$saved_LIBS"
])

dnl Check for encoding support
USE_ENCODERS=0
USE_JPEG_ENCODER=0
USE_VP8_ENCODER=0
USE_H265_ENCODER=0
if test "$enable_encoders" = "yes"; then
    PKG_CHECK_MODULES([LIBVA], [libva >= va_api_enc_version],
        [HAVE_VA_ENC=1], [HAVE_VA_ENC=0])

    if test $HAVE_VA_ENC -eq 1; then
        saved_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$LIBVA_CFLAGS"
        AC_CHECK_HEADERS([va/va_enc_mpeg2.h va/va_enc_h264.h],
            [USE_ENCODERS=1], [HAVE_VA_ENC=0 USE_ENCODERS=0],
            [#include <va/va.h>
            ])

        dnl Check for JPEG Encoding API (0.37.0+)
        AC_CHECK_HEADERS([va/va_enc_jpeg.h],
            [USE_JPEG_ENCODER=1], [],
            [#include <va/va.h>
            ])
        AC_CACHE_CHECK([for JPEG encoding API],
            ac_cv_have_jpeg_encoding_api, [
            saved_CPPFLAGS="$CPPFLAGS"
            CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
            saved_LIBS="$LIBS"
            LIBS="$LIBS $LIBVA_LIBS"
            AC_COMPILE_IFELSE(
                [AC_LANG_PROGRAM(
                    [[#include <va/va.h>
                      #ifdef HAVE_VA_VA_ENC_JPEG_H
                      #include <va/va_enc_jpeg.h>
                      #endif
                    ]],
                    [[VAEncPictureParameterBufferJPEG pic_param;
                      VAEncSliceParameterBufferJPEG slice_param;
                      VAQMatrixBufferJPEG q_matrix;]])],
                [ac_cv_have_jpeg_encoding_api="yes" USE_JPEG_ENCODER=1],
                [ac_cv_have_jpeg_encoding_api="no"]
            )
            CPPFLAGS="$saved_CPPFLAGS"
            LIBS="$saved_LIBS"
        ])

        dnl Check for VP8 Encoding API
        AC_CHECK_HEADERS([va/va_enc_vp8.h],
            [USE_VP8_ENCODER=1], [],
            [#include <va/va.h>
            ])
        AC_CACHE_CHECK([for VP8 encoding API],
            ac_cv_have_vp8_encoding_api, [
            saved_CPPFLAGS="$CPPFLAGS"
            CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
            saved_LIBS="$LIBS"
            LIBS="$LIBS $LIBVA_LIBS"
            AC_COMPILE_IFELSE(
                [AC_LANG_PROGRAM(
                    [[#include <va/va.h>
                      #ifdef HAVE_VA_VA_ENC_VP8_H
                      #include <va/va_enc_vp8.h>
                      #endif
                    ]],
                    [[VAEncSequenceParameterBufferVP8 seq_param;
                      VAEncPictureParameterBufferVP8 pic_param;
                      VAQMatrixBufferVP8 q_matrix;]])],
                [ac_cv_have_vp8_encoding_api="yes" USE_VP8_ENCODER=1],
                [ac_cv_have_vp8_encoding_api="no" USE_VP8_ENCODER=0]
            )
            CPPFLAGS="$saved_CPPFLAGS"
            LIBS="$saved_LIBS"
        ])
        CPPFLAGS="$saved_CPPFLAGS"

        dnl Check for H265/HEVC Encoding API
        AC_CHECK_HEADERS([va/va_enc_hevc.h],
            [USE_H265_ENCODER=1], [],
            [#include <va/va.h>
            ])
        AC_CACHE_CHECK([for HEVC encoding API],
            ac_cv_have_hevc_encoding_api, [
            saved_CPPFLAGS="$CPPFLAGS"
            CPPFLAGS="$CPPFLAGS $LIBVA_CFLAGS"
            saved_LIBS="$LIBS"
            LIBS="$LIBS $LIBVA_LIBS"
            AC_COMPILE_IFELSE(
                [AC_LANG_PROGRAM(
                    [[#include <va/va.h>
                      #ifdef HAVE_VA_VA_ENC_HEVC_H
                      #include <va/va_enc_hevc.h>
                      #endif
                    ]],
                    [[VAEncSequenceParameterBufferHEVC seq_param;
                      VAEncPictureParameterBufferHEVC pic_param;
                      VAEncSliceParameterBufferHEVC;
                      VAQMatrixBufferHEVC q_matrix;]])],
                [ac_cv_have_hevc_encoding_api="yes" USE_H265_ENCODER=1],
                [ac_cv_have_hevc_encoding_api="no" USE_H265_ENCODER=0]
            )
            CPPFLAGS="$saved_CPPFLAGS"
            LIBS="$saved_LIBS"
        ])
        CPPFLAGS="$saved_CPPFLAGS"
    fi
fi

dnl VA/Wayland API
if test "$enable_wayland" = "yes"; then
    PKG_CHECK_MODULES([LIBVA_WAYLAND], [libva-wayland >= va_api_wld_version],
        [:], [USE_WAYLAND=0])
fi

dnl ---------------------------------------------------------------------------
dnl -- Generate files and summary                                            --
dnl ---------------------------------------------------------------------------

case ":$USE_X11:$USE_GLX:$USE_EGL:$USE_WAYLAND:$USE_DRM:" in
*:1:*)
    ;;
*)
    AC_MSG_ERROR([No renderer is enabled])
    ;;
esac

AC_DEFINE_UNQUOTED([USE_ENCODERS], $USE_ENCODERS,
    [Defined to 1 if video encoders are used])
AM_CONDITIONAL([USE_ENCODERS], [test $USE_ENCODERS -eq 1])

AC_DEFINE_UNQUOTED(USE_JPEG_ENCODER, $USE_JPEG_ENCODER,
    [Defined to 1 if JPEG encoder is used])
AM_CONDITIONAL(USE_JPEG_ENCODER, test $USE_JPEG_ENCODER -eq 1)

AC_DEFINE_UNQUOTED(USE_VP8_ENCODER, $USE_VP8_ENCODER,
    [Defined to 1 if VP8 encoder is used])
AM_CONDITIONAL(USE_VP8_ENCODER, test $USE_VP8_ENCODER -eq 1)

AC_DEFINE_UNQUOTED(USE_H265_ENCODER, $USE_H265_ENCODER,
    [Defined to 1 if H265 encoder is used])
AM_CONDITIONAL(USE_H265_ENCODER, test $USE_H265_ENCODER -eq 1)

AC_DEFINE_UNQUOTED(USE_VA_VPP, $USE_VA_VPP,
    [Defined to 1 if video post-processing is used])
AM_CONDITIONAL(USE_VA_VPP, test $USE_VA_VPP -eq 1)

AC_DEFINE_UNQUOTED(USE_JPEG_DECODER, $USE_JPEG_DECODER,
    [Defined to 1 if JPEG decoder is used])
AM_CONDITIONAL(USE_JPEG_DECODER, test $USE_JPEG_DECODER -eq 1)

AC_DEFINE_UNQUOTED(USE_VP8_DECODER, $USE_VP8_DECODER,
    [Defined to 1 if VP8 decoder is used])
AM_CONDITIONAL(USE_VP8_DECODER, test $USE_VP8_DECODER -eq 1)

AC_DEFINE_UNQUOTED(USE_VP9_DECODER, $USE_VP9_DECODER,
    [Defined to 1 if VP9 decoder is used])
AM_CONDITIONAL(USE_VP9_DECODER, test $USE_VP9_DECODER -eq 1)

AC_DEFINE_UNQUOTED(USE_HEVC_DECODER, $USE_HEVC_DECODER,
    [Defined to 1 if HEVC decoder is used])
AM_CONDITIONAL(USE_HEVC_DECODER, test $USE_HEVC_DECODER -eq 1)

AC_DEFINE_UNQUOTED(USE_DRM, $USE_DRM,
    [Defined to 1 if DRM is enabled])
AM_CONDITIONAL(USE_DRM, test $USE_DRM -eq 1)

AC_DEFINE_UNQUOTED(USE_X11, $USE_X11,
    [Defined to 1 if X11 is enabled])
AM_CONDITIONAL(USE_X11, test $USE_X11 -eq 1)

AC_DEFINE_UNQUOTED(USE_GLX, $USE_GLX,
    [Defined to 1 if GLX is enabled])
AM_CONDITIONAL(USE_GLX, test $USE_GLX -eq 1)

AC_DEFINE_UNQUOTED([USE_EGL], [$USE_EGL],
    [Defined to 1 if EGL is enabled])
AM_CONDITIONAL([USE_EGL], [test $USE_EGL -eq 1])

AC_DEFINE_UNQUOTED([USE_GLES_VERSION_MASK], [$GLES_VERSION_MASK],
    [Defined to the set of enabled OpenGL ES APIs])

AC_DEFINE_UNQUOTED(USE_WAYLAND, $USE_WAYLAND,
    [Defined to 1 if WAYLAND is enabled])
AM_CONDITIONAL(USE_WAYLAND, test $USE_WAYLAND -eq 1)

pkgconfigdir=${libdir}/pkgconfig
AC_SUBST(pkgconfigdir)

AC_CONFIG_FILES([
    Makefile
    debian.upstream/Makefile
    debian.upstream/changelog
    debian.upstream/control
    debian.upstream/gstreamer$GST_API_VERSION-vaapi-doc.install:\
debian.upstream/gstreamer-vaapi-doc.install.in
    debian.upstream/gstreamer$GST_API_VERSION-vaapi.install:\
debian.upstream/gstreamer-vaapi.install.in
    debian.upstream/libgstvaapi$GST_PKG_VERSION-dev.install:\
debian.upstream/libgstvaapi-dev.install.in
    debian.upstream/libgstvaapi$GST_VAAPI_MAJOR_VERSION.install:\
debian.upstream/libgstvaapi.install.in
    debian.upstream/libgstvaapi-drm-$GST_VAAPI_MAJOR_VERSION.install:\
debian.upstream/libgstvaapi-drm.install.in
    debian.upstream/libgstvaapi-glx-$GST_VAAPI_MAJOR_VERSION.install:\
debian.upstream/libgstvaapi-glx.install.in
    debian.upstream/libgstvaapi-wayland-$GST_VAAPI_MAJOR_VERSION.install:\
debian.upstream/libgstvaapi-wayland.install.in
    debian.upstream/libgstvaapi-x11-$GST_VAAPI_MAJOR_VERSION.install:\
debian.upstream/libgstvaapi-x11.install.in
    docs/Makefile
    docs/reference/Makefile
    docs/reference/libs/Makefile
    docs/reference/libs/libs-docs.xml
    docs/reference/plugins/Makefile
    docs/reference/plugins/plugins-docs.xml
    ext/Makefile
    ext/libvpx/Makefile
    gst-libs/Makefile
    gst-libs/gst/Makefile
    gst-libs/gst/base/Makefile
    gst-libs/gst/codecparsers/Makefile
    gst-libs/gst/vaapi/Makefile
    gst/Makefile
    gst/vaapi/Makefile
    patches/Makefile
    patches/videoparsers/Makefile
    pkgconfig/Makefile
    pkgconfig/gstreamer-vaapi-$GST_PKG_VERSION.pc:\
pkgconfig/gstreamer-vaapi.pc.in
    pkgconfig/gstreamer-vaapi-drm-$GST_PKG_VERSION.pc:\
pkgconfig/gstreamer-vaapi-drm.pc.in
    pkgconfig/gstreamer-vaapi-glx-$GST_PKG_VERSION.pc:\
pkgconfig/gstreamer-vaapi-glx.pc.in
    pkgconfig/gstreamer-vaapi-wayland-$GST_PKG_VERSION.pc:\
pkgconfig/gstreamer-vaapi-wayland.pc.in
    pkgconfig/gstreamer-vaapi-x11-$GST_PKG_VERSION.pc:\
pkgconfig/gstreamer-vaapi-x11.pc.in
    tests/Makefile
])
AC_OUTPUT

dnl Print summary
yesno() {
    test $1 -eq 1 && echo yes || echo no
}

VIDEO_OUTPUTS=""
AS_IF([test $USE_DRM -eq 1], [VIDEO_OUTPUTS="$VIDEO_OUTPUTS drm"])
AS_IF([test $USE_X11 -eq 1], [VIDEO_OUTPUTS="$VIDEO_OUTPUTS x11"])
AS_IF([test $USE_GLX -eq 1], [VIDEO_OUTPUTS="$VIDEO_OUTPUTS glx"])
AS_IF([test $USE_EGL -eq 1], [VIDEO_OUTPUTS="$VIDEO_OUTPUTS egl"])
AS_IF([test $USE_WAYLAND -eq 1], [VIDEO_OUTPUTS="$VIDEO_OUTPUTS wayland"])

echo
echo $PACKAGE configuration summary:
echo
echo Installation Prefix .............. : ${prefix}
echo GStreamer API version ............ : $GST_API_VERSION
echo VA-API version ................... : $VA_VERSION_STR
echo Video encoding ................... : $(yesno $USE_ENCODERS)
echo Video outputs .................... : $VIDEO_OUTPUTS
echo