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90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
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/*
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* gst-plugins-bad
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* Copyright (C) 2012 Edward Hervey <edward@collabora.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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstvdputils.h"
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typedef struct
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{
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VdpChromaType chroma_type;
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VdpYCbCrFormat format;
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GstVideoFormat vformat;
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} GstVdpVideoBufferFormats;
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static const GstVdpVideoBufferFormats yuv_formats[] = {
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{VDP_CHROMA_TYPE_420, VDP_YCBCR_FORMAT_YV12, GST_VIDEO_FORMAT_YV12},
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{VDP_CHROMA_TYPE_420, VDP_YCBCR_FORMAT_NV12, GST_VIDEO_FORMAT_NV12},
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{VDP_CHROMA_TYPE_422, VDP_YCBCR_FORMAT_UYVY, GST_VIDEO_FORMAT_UYVY},
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{VDP_CHROMA_TYPE_444, VDP_YCBCR_FORMAT_V8U8Y8A8, GST_VIDEO_FORMAT_AYUV},
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/* { */
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/* VDP_CHROMA_TYPE_444, */
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/* VDP_YCBCR_FORMAT_Y8U8V8A8, */
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/* GST_MAKE_FOURCC ('A', 'V', 'U', 'Y') */
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/* }, */
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{VDP_CHROMA_TYPE_422, VDP_YCBCR_FORMAT_YUYV, GST_VIDEO_FORMAT_YUY2}
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};
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VdpYCbCrFormat
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gst_video_format_to_vdp_ycbcr (GstVideoFormat format)
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{
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int i;
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for (i = 0; i < G_N_ELEMENTS (yuv_formats); i++) {
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if (yuv_formats[i].vformat == format)
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return yuv_formats[i].format;
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}
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return -1;
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}
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VdpChromaType
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gst_video_info_to_vdp_chroma_type (GstVideoInfo * info)
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{
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const GstVideoFormatInfo *finfo = info->finfo;
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VdpChromaType ret = -1;
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/* Check subsampling of second plane (first is always non-subsampled) */
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switch (GST_VIDEO_FORMAT_INFO_W_SUB (finfo, 1)) {
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case 0:
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/* Not subsampled in width for second plane */
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if (GST_VIDEO_FORMAT_INFO_W_SUB (finfo, 2))
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/* Not subsampled at all (4:4:4) */
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ret = VDP_CHROMA_TYPE_444;
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break;
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case 1:
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/* Subsampled horizontally once */
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if (GST_VIDEO_FORMAT_INFO_H_SUB (finfo, 2) == 0)
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/* Not subsampled vertically (4:2:2) */
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ret = VDP_CHROMA_TYPE_422;
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else if (GST_VIDEO_FORMAT_INFO_H_SUB (finfo, 2) == 1)
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/* Subsampled vertically once (4:2:0) */
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ret = VDP_CHROMA_TYPE_420;
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break;
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default:
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break;
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}
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return ret;
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}
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