| /* |
| * Copyright (c) 2014, Freescale Semiconductor, Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 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 |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #include "gstphymemmeta.h" |
| |
| GST_DEBUG_CATEGORY_STATIC(phy_mem_meta_debug); |
| #define GST_CAT_DEFAULT phy_mem_meta_debug |
| |
| static gboolean |
| gst_phy_mem_meta_transform (GstBuffer * dest, GstMeta * meta, |
| GstBuffer * buffer, GQuark type, gpointer data) |
| { |
| GstPhyMemMeta *dmeta, *smeta; |
| |
| if (GST_META_TRANSFORM_IS_COPY (type)) { |
| smeta = (GstPhyMemMeta *) meta; |
| dmeta = GST_PHY_MEM_META_ADD (dest); |
| |
| GST_DEBUG ("copy phy metadata"); |
| |
| dmeta->x_padding = smeta->x_padding; |
| dmeta->y_padding = smeta->y_padding; |
| } else if (GST_VIDEO_META_TRANSFORM_IS_SCALE (type)) { |
| GstVideoMetaTransform *trans = data; |
| gint ow, oh, nw, nh; |
| |
| smeta = (GstPhyMemMeta *) meta; |
| dmeta = GST_PHY_MEM_META_ADD (dest); |
| |
| ow = GST_VIDEO_INFO_WIDTH (trans->in_info); |
| nw = GST_VIDEO_INFO_WIDTH (trans->out_info); |
| oh = GST_VIDEO_INFO_HEIGHT (trans->in_info); |
| nh = GST_VIDEO_INFO_HEIGHT (trans->out_info); |
| |
| GST_DEBUG ("scaling phy metadata %dx%d -> %dx%d", ow, oh, nw, nh); |
| |
| dmeta->x_padding = (smeta->x_padding * nw) / ow; |
| dmeta->y_padding = (smeta->y_padding * nh) / oh; |
| } |
| |
| dmeta->rfc_luma_offset = smeta->rfc_luma_offset; |
| dmeta->rfc_chroma_offset = smeta->rfc_chroma_offset; |
| |
| return TRUE; |
| } |
| |
| GType |
| gst_phy_mem_meta_api_get_type (void) |
| { |
| static volatile GType type = 0; |
| static const gchar *tags[] = |
| { GST_META_TAG_VIDEO_STR, GST_META_TAG_VIDEO_SIZE_STR, |
| GST_META_TAG_VIDEO_ORIENTATION_STR, NULL |
| }; |
| |
| if (g_once_init_enter (&type)) { |
| GType _type = gst_meta_api_type_register ("GstPhyMemMetaAPI", tags); |
| g_once_init_leave (&type, _type); |
| } |
| return type; |
| } |
| |
| static gboolean |
| gst_phy_mem_meta_init (GstMeta * meta, gpointer params, |
| GstBuffer * buf) |
| { |
| return TRUE; |
| } |
| |
| const GstMetaInfo * |
| gst_phy_mem_meta_get_info (void) |
| { |
| static const GstMetaInfo *phy_mem_meta_info = NULL; |
| |
| if (g_once_init_enter (&phy_mem_meta_info)) { |
| const GstMetaInfo *meta = |
| gst_meta_register (GST_PHY_MEM_META_API_TYPE, "GstPhyMemMeta", |
| sizeof (GstPhyMemMeta), (GstMetaInitFunction) gst_phy_mem_meta_init, |
| (GstMetaFreeFunction) NULL, gst_phy_mem_meta_transform); |
| GST_DEBUG_CATEGORY_INIT (phy_mem_meta_debug, "phymemmeta", 0, |
| "Freescale physical memory meta"); |
| g_once_init_leave (&phy_mem_meta_info, meta); |
| } |
| return phy_mem_meta_info; |
| } |
| |
| |