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120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/*
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* gstvaapiutils_vpx.c - vpx related utilities
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*
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* Copyright (C) 2020 Intel Corporation
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* Author: He Junyan <junyan.he@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#include "gstvaapiutils_vpx.h"
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#include "gstvaapisurface.h"
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struct map
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{
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guint value;
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const gchar *name;
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};
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/* Profile string map */
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static const struct map gst_vaapi_vp9_profile_map[] = {
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/* *INDENT-OFF* */
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{ GST_VAAPI_PROFILE_VP9_0, "0" },
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{ GST_VAAPI_PROFILE_VP9_1, "1" },
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{ GST_VAAPI_PROFILE_VP9_2, "2" },
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{ GST_VAAPI_PROFILE_VP9_3, "3" },
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{ 0, NULL }
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/* *INDENT-ON* */
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};
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/* Lookup name in map */
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static const struct map *
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map_lookup_name (const struct map *m, const gchar * name)
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{
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g_return_val_if_fail (m != NULL, NULL);
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if (!name)
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return NULL;
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for (; m->name != NULL; m++) {
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if (strcmp (m->name, name) == 0)
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return m;
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}
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return NULL;
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}
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/* Lookup value in map */
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static const struct map *
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map_lookup_value (const struct map *m, guint value)
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{
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g_return_val_if_fail (m != NULL, NULL);
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for (; m->name != NULL; m++) {
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if (m->value == value)
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return m;
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}
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return NULL;
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}
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/** Returns GstVaapiProfile from a string representation */
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GstVaapiProfile
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gst_vaapi_utils_vp9_get_profile_from_string (const gchar * str)
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{
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const struct map *const m = map_lookup_name (gst_vaapi_vp9_profile_map, str);
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return m ? (GstVaapiProfile) m->value : GST_VAAPI_PROFILE_UNKNOWN;
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}
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/** Returns a string representation for the supplied VP9 profile */
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const gchar *
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gst_vaapi_utils_vp9_get_profile_string (GstVaapiProfile profile)
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{
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const struct map *const m =
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map_lookup_value (gst_vaapi_vp9_profile_map, profile);
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return m ? m->name : NULL;
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}
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/** Returns VP9 chroma_format_idc value from GstVaapiChromaType */
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guint
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gst_vaapi_utils_vp9_get_chroma_format_idc (guint chroma_type)
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{
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guint chroma_format_idc;
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switch (chroma_type) {
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case GST_VAAPI_CHROMA_TYPE_YUV400:
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chroma_format_idc = 0;
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break;
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case GST_VAAPI_CHROMA_TYPE_YUV420:
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case GST_VAAPI_CHROMA_TYPE_YUV420_10BPP:
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chroma_format_idc = 1;
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break;
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case GST_VAAPI_CHROMA_TYPE_YUV422:
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case GST_VAAPI_CHROMA_TYPE_YUV422_10BPP:
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chroma_format_idc = 2;
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break;
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case GST_VAAPI_CHROMA_TYPE_YUV444:
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case GST_VAAPI_CHROMA_TYPE_YUV444_10BPP:
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chroma_format_idc = 3;
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break;
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default:
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GST_DEBUG ("unsupported GstVaapiChromaType value");
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chroma_format_idc = 1;
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break;
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}
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return chroma_format_idc;
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}
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