libs: utils: vpx: Add utils vpx to handle VP8/9 misc things.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/188>

gst-libs/gst/vaapi/gstvaapiutils_vpx.c

@@ -0,0 +1,88 @@
+/*
+ *  gstvaapiutils_vpx.c - vpx related utilities
+ *
+ *  Copyright (C) 2020 Intel Corporation
+ *    Author: He Junyan <junyan.he@intel.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public License
+ *  as published by the Free Software Foundation; either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+
+#include "gstvaapiutils_vpx.h"
+
+struct map
+{
+  guint value;
+  const gchar *name;
+};
+
+/* Profile string map */
+static const struct map gst_vaapi_vp9_profile_map[] = {
+  /* *INDENT-OFF* */
+  { GST_VAAPI_PROFILE_VP9_0, "0" },
+  { GST_VAAPI_PROFILE_VP9_1, "1" },
+  { GST_VAAPI_PROFILE_VP9_2, "2" },
+  { GST_VAAPI_PROFILE_VP9_3, "3" },
+  { 0, NULL }
+  /* *INDENT-ON* */
+};
+
+/* Lookup name in map */
+static const struct map *
+map_lookup_name (const struct map *m, const gchar * name)
+{
+  g_return_val_if_fail (m != NULL, NULL);
+
+  if (!name)
+    return NULL;
+
+  for (; m->name != NULL; m++) {
+    if (strcmp (m->name, name) == 0)
+      return m;
+  }
+  return NULL;
+}
+
+/* Lookup value in map */
+static const struct map *
+map_lookup_value (const struct map *m, guint value)
+{
+  g_return_val_if_fail (m != NULL, NULL);
+
+  for (; m->name != NULL; m++) {
+    if (m->value == value)
+      return m;
+  }
+  return NULL;
+}
+
+/** Returns GstVaapiProfile from a string representation */
+GstVaapiProfile
+gst_vaapi_utils_vp9_get_profile_from_string (const gchar * str)
+{
+  const struct map *const m = map_lookup_name (gst_vaapi_vp9_profile_map, str);
+
+  return m ? (GstVaapiProfile) m->value : GST_VAAPI_PROFILE_UNKNOWN;
+}
+
+/** Returns a string representation for the supplied VP9 profile */
+const gchar *
+gst_vaapi_utils_vp9_get_profile_string (GstVaapiProfile profile)
+{
+  const struct map *const m =
+      map_lookup_value (gst_vaapi_vp9_profile_map, profile);
+
+  return m ? m->name : NULL;
+}

gst-libs/gst/vaapi/gstvaapiutils_vpx.h

@@ -0,0 +1,40 @@
+/*
+ *  gstvaapiutils_vpx.h - vpx related utilities
+ *
+ *  Copyright (C) 2020 Intel Corporation
+ *    Author: He Junyan <junyan.he@intel.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public License
+ *  as published by the Free Software Foundation; either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+
+#ifndef GST_VAAPI_UTILS_VPX_H
+#define GST_VAAPI_UTILS_VPX_H
+
+#include <gst/vaapi/gstvaapiprofile.h>
+
+G_BEGIN_DECLS
+
+/** Returns GstVaapiProfile from a string representation */
+GstVaapiProfile
+gst_vaapi_utils_vp9_get_profile_from_string (const gchar * str);
+
+/** Returns a string representation for the supplied VP9 profile */
+const gchar *
+gst_vaapi_utils_vp9_get_profile_string (GstVaapiProfile profile);
+
+G_END_DECLS
+
+#endif /* GST_VAAPI_UTILS_VPX_H */

gst-libs/gst/vaapi/meson.build

@@ -36,6 +36,7 @@ gstlibvaapi_sources = [
   'gstvaapiutils_h265.c',
   'gstvaapiutils_h26x.c',
   'gstvaapiutils_mpeg2.c',
+  'gstvaapiutils_vpx.c',
   'gstvaapivalue.c',
   'gstvaapivideopool.c',
   'gstvaapiwindow.c',
@@ -71,6 +72,7 @@ gstlibvaapi_headers = [
   'gstvaapiutils_h264.h',
   'gstvaapiutils_h265.h',
   'gstvaapiutils_mpeg2.h',
+  'gstvaapiutils_vpx.h',
   'gstvaapivalue.h',
   'gstvaapivideopool.h',
   'gstvaapiwindow.h',