diff --git a/configure b/configure
index 3960b735c1..07fa501d6e 100755
--- a/configure
+++ b/configure
@@ -5141,13 +5141,33 @@ enabled libvidstab        && require_pkg_config "vidstab >= 0.98" vid.stab/libvi
 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
+
 enabled libvpx            && {
-    enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
-                                    die "ERROR: libvpx decoder version must be >=0.9.1"; }
-    enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
-                                    die "ERROR: libvpx encoder version must be >=0.9.7"; }
-    enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
-    enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx || disable libvpx_vp9_encoder; } }
+    enabled libvpx_vp8_decoder && {
+        use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
+            check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
+                die "ERROR: libvpx decoder version must be >=0.9.1";
+    }
+    enabled libvpx_vp8_encoder && {
+        use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
+            check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
+                die "ERROR: libvpx encoder version must be >=0.9.7";
+    }
+    enabled libvpx_vp9_decoder && {
+        use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
+            check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx ||
+                disable libvpx_vp9_decoder;
+    }
+    enabled libvpx_vp9_encoder && {
+        use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
+            check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx ||
+                disable libvpx_vp9_encoder;
+    }
+    if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
+        die "libvpx enabled but no supported decoders found"
+    fi
+}
+
 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
 enabled libwebp           && {
     enabled libwebp_encoder      && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index b75b27e66f..25cb34f2a7 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2924,17 +2924,16 @@ typedef struct AVCodecContext {
 #define FF_PROFILE_JPEG2000_DCINEMA_2K              3
 #define FF_PROFILE_JPEG2000_DCINEMA_4K              4
 
+#define FF_PROFILE_VP9_0                            0
+#define FF_PROFILE_VP9_1                            1
+#define FF_PROFILE_VP9_2                            2
+#define FF_PROFILE_VP9_3                            3
 
 #define FF_PROFILE_HEVC_MAIN                        1
 #define FF_PROFILE_HEVC_MAIN_10                     2
 #define FF_PROFILE_HEVC_MAIN_STILL_PICTURE          3
 #define FF_PROFILE_HEVC_REXT                        4
 
-#define FF_PROFILE_VP9_0                            0
-#define FF_PROFILE_VP9_1                            1
-#define FF_PROFILE_VP9_2                            2
-#define FF_PROFILE_VP9_3                            3
-
     /**
      * level
      * - encoding: Set by user.
diff --git a/libavcodec/libvpx.c b/libavcodec/libvpx.c
index e0f9df3caa..602eb70f45 100644
--- a/libavcodec/libvpx.c
+++ b/libavcodec/libvpx.c
@@ -77,3 +77,60 @@ av_cold void ff_vp9_init_static(AVCodec *codec)
     }
 #endif
 }
+#if 0
+enum AVPixelFormat ff_vpx_imgfmt_to_pixfmt(vpx_img_fmt_t img)
+{
+    switch (img) {
+    case VPX_IMG_FMT_RGB24:     return AV_PIX_FMT_RGB24;
+    case VPX_IMG_FMT_RGB565:    return AV_PIX_FMT_RGB565BE;
+    case VPX_IMG_FMT_RGB555:    return AV_PIX_FMT_RGB555BE;
+    case VPX_IMG_FMT_UYVY:      return AV_PIX_FMT_UYVY422;
+    case VPX_IMG_FMT_YUY2:      return AV_PIX_FMT_YUYV422;
+    case VPX_IMG_FMT_YVYU:      return AV_PIX_FMT_YVYU422;
+    case VPX_IMG_FMT_BGR24:     return AV_PIX_FMT_BGR24;
+    case VPX_IMG_FMT_ARGB:      return AV_PIX_FMT_ARGB;
+    case VPX_IMG_FMT_ARGB_LE:   return AV_PIX_FMT_BGRA;
+    case VPX_IMG_FMT_RGB565_LE: return AV_PIX_FMT_RGB565LE;
+    case VPX_IMG_FMT_RGB555_LE: return AV_PIX_FMT_RGB555LE;
+    case VPX_IMG_FMT_I420:      return AV_PIX_FMT_YUV420P;
+    case VPX_IMG_FMT_I422:      return AV_PIX_FMT_YUV422P;
+    case VPX_IMG_FMT_I444:      return AV_PIX_FMT_YUV444P;
+    case VPX_IMG_FMT_444A:      return AV_PIX_FMT_YUVA444P;
+#ifdef VPX_IMAGE_ABI_VERSION >= 3
+    case VPX_IMG_FMT_I440:      return AV_PIX_FMT_YUV440P;
+    case VPX_IMG_FMT_I42016:    return AV_PIX_FMT_YUV420P16BE;
+    case VPX_IMG_FMT_I42216:    return AV_PIX_FMT_YUV422P16BE;
+    case VPX_IMG_FMT_I44416:    return AV_PIX_FMT_YUV444P16BE;
+#endif
+    default:                    return AV_PIX_FMT_NONE;
+    }
+}
+
+vpx_img_fmt_t ff_vpx_pixfmt_to_imgfmt(enum AVPixelFormat pix)
+{
+    switch (pix) {
+    case AV_PIX_FMT_RGB24:        return VPX_IMG_FMT_RGB24;
+    case AV_PIX_FMT_RGB565BE:     return VPX_IMG_FMT_RGB565;
+    case AV_PIX_FMT_RGB555BE:     return VPX_IMG_FMT_RGB555;
+    case AV_PIX_FMT_UYVY422:      return VPX_IMG_FMT_UYVY;
+    case AV_PIX_FMT_YUYV422:      return VPX_IMG_FMT_YUY2;
+    case AV_PIX_FMT_YVYU422:      return VPX_IMG_FMT_YVYU;
+    case AV_PIX_FMT_BGR24:        return VPX_IMG_FMT_BGR24;
+    case AV_PIX_FMT_ARGB:         return VPX_IMG_FMT_ARGB;
+    case AV_PIX_FMT_BGRA:         return VPX_IMG_FMT_ARGB_LE;
+    case AV_PIX_FMT_RGB565LE:     return VPX_IMG_FMT_RGB565_LE;
+    case AV_PIX_FMT_RGB555LE:     return VPX_IMG_FMT_RGB555_LE;
+    case AV_PIX_FMT_YUV420P:      return VPX_IMG_FMT_I420;
+    case AV_PIX_FMT_YUV422P:      return VPX_IMG_FMT_I422;
+    case AV_PIX_FMT_YUV444P:      return VPX_IMG_FMT_I444;
+    case AV_PIX_FMT_YUVA444P:     return VPX_IMG_FMT_444A;
+#ifdef VPX_IMAGE_ABI_VERSION >= 3
+    case AV_PIX_FMT_YUV440P:      return VPX_IMG_FMT_I440;
+    case AV_PIX_FMT_YUV420P16BE:  return VPX_IMG_FMT_I42016;
+    case AV_PIX_FMT_YUV422P16BE:  return VPX_IMG_FMT_I42216;
+    case AV_PIX_FMT_YUV444P16BE:  return VPX_IMG_FMT_I44416;
+#endif
+    default:                      return VPX_IMG_FMT_NONE;
+    }
+}
+#endif
diff --git a/libavcodec/libvpx.h b/libavcodec/libvpx.h
index 36a275c5d2..41c246ba74 100644
--- a/libavcodec/libvpx.h
+++ b/libavcodec/libvpx.h
@@ -24,5 +24,7 @@
 #include "avcodec.h"
 
 void ff_vp9_init_static(AVCodec *codec);
+enum AVPixelFormat ff_vpx_imgfmt_to_pixfmt(vpx_img_fmt_t img);
+vpx_img_fmt_t ff_vpx_pixfmt_to_imgfmt(enum AVPixelFormat pix);
 
 #endif /* AVCODEC_LIBVPX_H */
diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
index a5b750f8ba..a7303f8af3 100644
--- a/libavcodec/libvpxenc.c
+++ b/libavcodec/libvpxenc.c
@@ -381,7 +381,7 @@ static av_cold int vpx_init(AVCodecContext *avctx,
                             const struct vpx_codec_iface *iface)
 {
     VP8Context *ctx = avctx->priv_data;
-    struct vpx_codec_enc_cfg enccfg;
+    struct vpx_codec_enc_cfg enccfg = { 0 };
     struct vpx_codec_enc_cfg enccfg_alpha;
     vpx_codec_flags_t flags = (avctx->flags & CODEC_FLAG_PSNR) ? VPX_CODEC_USE_PSNR : 0;
     int res;
@@ -1056,6 +1056,14 @@ static const AVClass class_vp9 = {
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
+static const AVProfile profiles[] = {
+    { FF_PROFILE_VP9_0, "Profile 0" },
+    { FF_PROFILE_VP9_1, "Profile 1" },
+    { FF_PROFILE_VP9_2, "Profile 2" },
+    { FF_PROFILE_VP9_3, "Profile 3" },
+    { FF_PROFILE_UNKNOWN },
+};
+
 AVCodec ff_libvpx_vp9_encoder = {
     .name           = "libvpx-vp9",
     .long_name      = NULL_IF_CONFIG_SMALL("libvpx VP9"),
@@ -1066,6 +1074,7 @@ AVCodec ff_libvpx_vp9_encoder = {
     .encode2        = vp8_encode,
     .close          = vp8_free,
     .capabilities   = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
+    .profiles       = NULL_IF_CONFIG_SMALL(profiles),
     .priv_class     = &class_vp9,
     .defaults       = defaults,
     .init_static_data = ff_vp9_init_static,
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 7490dd9a2c..f4d68bd85b 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -30,7 +30,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 56
 #define LIBAVCODEC_VERSION_MINOR  42
-#define LIBAVCODEC_VERSION_MICRO 100
+#define LIBAVCODEC_VERSION_MICRO 101
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \