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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4879983253
Add a new macro that gives you the height of a field. It returns the height of the full frame unless split-field (alternate) interlacing is in use. Also GST_VIDEO_INFO_COMP_HEIGHT macro now uses this new macro to get the height for its calculation. https://bugzilla.gnome.org/show_bug.cgi?id=796106
1340 lines
42 KiB
C
1340 lines
42 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2007 David A. Schleef <ds@schleef.org>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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 <string.h>
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#include <stdio.h>
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#include "video-info.h"
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#include "video-tile.h"
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#ifndef GST_DISABLE_GST_DEBUG
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#define GST_CAT_DEFAULT ensure_debug_category()
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static GstDebugCategory *
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ensure_debug_category (void)
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{
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static gsize cat_gonce = 0;
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if (g_once_init_enter (&cat_gonce)) {
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gsize cat_done;
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cat_done = (gsize) _gst_debug_category_new ("video-info", 0,
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"video-info structure");
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g_once_init_leave (&cat_gonce, cat_done);
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}
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return (GstDebugCategory *) cat_gonce;
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}
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#else
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#define ensure_debug_category() /* NOOP */
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#endif /* GST_DISABLE_GST_DEBUG */
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/**
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* gst_video_info_copy:
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* @info: a #GstVideoInfo
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*
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* Copy a GstVideoInfo structure.
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*
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* Returns: a new #GstVideoInfo. free with gst_video_info_free.
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*
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* Since: 1.6
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*/
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GstVideoInfo *
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gst_video_info_copy (const GstVideoInfo * info)
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{
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return g_slice_dup (GstVideoInfo, info);
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}
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/**
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* gst_video_info_free:
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* @info: a #GstVideoInfo
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*
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* Free a GstVideoInfo structure previously allocated with gst_video_info_new()
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* or gst_video_info_copy().
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*
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* Since: 1.6
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*/
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void
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gst_video_info_free (GstVideoInfo * info)
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{
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g_slice_free (GstVideoInfo, info);
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}
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G_DEFINE_BOXED_TYPE (GstVideoInfo, gst_video_info,
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(GBoxedCopyFunc) gst_video_info_copy, (GBoxedFreeFunc) gst_video_info_free);
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/**
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* gst_video_info_new:
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*
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* Allocate a new #GstVideoInfo that is also initialized with
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* gst_video_info_init().
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*
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* Returns: a new #GstVideoInfo. free with gst_video_info_free().
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*
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* Since: 1.6
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*/
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GstVideoInfo *
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gst_video_info_new (void)
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{
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GstVideoInfo *info;
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info = g_slice_new (GstVideoInfo);
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gst_video_info_init (info);
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return info;
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}
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static gboolean fill_planes (GstVideoInfo * info);
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/**
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* gst_video_info_init:
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* @info: a #GstVideoInfo
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*
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* Initialize @info with default values.
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*/
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void
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gst_video_info_init (GstVideoInfo * info)
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{
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g_return_if_fail (info != NULL);
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memset (info, 0, sizeof (GstVideoInfo));
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info->finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_UNKNOWN);
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info->views = 1;
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/* arrange for sensible defaults, e.g. if turned into caps */
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info->fps_n = 0;
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info->fps_d = 1;
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info->par_n = 1;
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info->par_d = 1;
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GST_VIDEO_INFO_MULTIVIEW_MODE (info) = GST_VIDEO_MULTIVIEW_MODE_NONE;
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GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
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GST_VIDEO_INFO_FIELD_ORDER (info) = GST_VIDEO_FIELD_ORDER_UNKNOWN;
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}
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#define MAKE_COLORIMETRY(r,m,t,p) { \
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GST_VIDEO_COLOR_RANGE ##r, GST_VIDEO_COLOR_MATRIX_ ##m, \
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GST_VIDEO_TRANSFER_ ##t, GST_VIDEO_COLOR_PRIMARIES_ ##p }
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#define DEFAULT_YUV_SD 0
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#define DEFAULT_YUV_HD 1
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#define DEFAULT_RGB 2
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#define DEFAULT_GRAY 3
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#define DEFAULT_UNKNOWN 4
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#define DEFAULT_YUV_UHD 5
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static const GstVideoColorimetry default_color[] = {
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MAKE_COLORIMETRY (_16_235, BT601, BT709, SMPTE170M),
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MAKE_COLORIMETRY (_16_235, BT709, BT709, BT709),
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MAKE_COLORIMETRY (_0_255, RGB, SRGB, BT709),
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MAKE_COLORIMETRY (_0_255, BT601, UNKNOWN, UNKNOWN),
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MAKE_COLORIMETRY (_UNKNOWN, UNKNOWN, UNKNOWN, UNKNOWN),
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MAKE_COLORIMETRY (_16_235, BT2020, BT2020_12, BT2020),
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};
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static void
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set_default_colorimetry (GstVideoInfo * info)
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{
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const GstVideoFormatInfo *finfo = info->finfo;
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if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo)) {
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if (info->height >= 2160) {
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info->chroma_site = GST_VIDEO_CHROMA_SITE_H_COSITED;
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info->colorimetry = default_color[DEFAULT_YUV_UHD];
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} else if (info->height > 576) {
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info->chroma_site = GST_VIDEO_CHROMA_SITE_H_COSITED;
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info->colorimetry = default_color[DEFAULT_YUV_HD];
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} else {
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info->chroma_site = GST_VIDEO_CHROMA_SITE_NONE;
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info->colorimetry = default_color[DEFAULT_YUV_SD];
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}
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} else if (GST_VIDEO_FORMAT_INFO_IS_GRAY (finfo)) {
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info->colorimetry = default_color[DEFAULT_GRAY];
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} else if (GST_VIDEO_FORMAT_INFO_IS_RGB (finfo)) {
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info->colorimetry = default_color[DEFAULT_RGB];
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} else {
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info->colorimetry = default_color[DEFAULT_UNKNOWN];
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}
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}
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static gboolean
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validate_colorimetry (GstVideoInfo * info)
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{
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const GstVideoFormatInfo *finfo = info->finfo;
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if (!GST_VIDEO_FORMAT_INFO_IS_RGB (finfo) &&
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info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_RGB)
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return FALSE;
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if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo) &&
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info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN)
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return FALSE;
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return TRUE;
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}
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static gboolean
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gst_video_info_set_format_common (GstVideoInfo * info, GstVideoFormat format,
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guint width, guint height)
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{
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g_return_val_if_fail (info != NULL, FALSE);
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g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, FALSE);
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if (width > G_MAXINT || height > G_MAXINT)
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return FALSE;
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gst_video_info_init (info);
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info->finfo = gst_video_format_get_info (format);
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info->width = width;
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info->height = height;
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info->views = 1;
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set_default_colorimetry (info);
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return TRUE;
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}
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/**
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* gst_video_info_set_format:
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* @info: a #GstVideoInfo
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* @format: the format
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* @width: a width
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* @height: a height
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*
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* Set the default info for a video frame of @format and @width and @height.
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*
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* Note: This initializes @info first, no values are preserved. This function
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* does not set the offsets correctly for interlaced vertically
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* subsampled formats.
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*
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* Returns: %FALSE if the returned video info is invalid, e.g. because the
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* size of a frame can't be represented as a 32 bit integer (Since: 1.12)
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*/
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gboolean
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gst_video_info_set_format (GstVideoInfo * info, GstVideoFormat format,
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guint width, guint height)
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{
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if (!gst_video_info_set_format_common (info, format, width, height))
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return FALSE;
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return fill_planes (info);
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}
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/**
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* gst_video_info_set_interlaced_format:
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* @info: a #GstVideoInfo
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* @format: the format
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* @mode: a #GstVideoInterlaceMode
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* @width: a width
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* @height: a height
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*
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* Same as #gst_video_info_set_format but also allowing to set the interlaced
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* mode.
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*
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* Returns: %FALSE if the returned video info is invalid, e.g. because the
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* size of a frame can't be represented as a 32 bit integer.
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*
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* Since: 1.16
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*/
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gboolean
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gst_video_info_set_interlaced_format (GstVideoInfo * info,
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GstVideoFormat format, GstVideoInterlaceMode mode, guint width,
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guint height)
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{
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if (!gst_video_info_set_format_common (info, format, width, height))
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return FALSE;
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GST_VIDEO_INFO_INTERLACE_MODE (info) = mode;
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return fill_planes (info);
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}
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static const gchar *interlace_mode[] = {
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"progressive",
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"interleaved",
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"mixed",
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"fields",
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"alternate"
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};
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/**
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* gst_video_interlace_mode_to_string:
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* @mode: a #GstVideoInterlaceMode
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*
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* Convert @mode to its string representation.
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*
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* Returns: @mode as a string or NULL if @mode in invalid.
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*
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* Since: 1.6
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*/
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const gchar *
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gst_video_interlace_mode_to_string (GstVideoInterlaceMode mode)
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{
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if (((guint) mode) >= G_N_ELEMENTS (interlace_mode))
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return NULL;
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return interlace_mode[mode];
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}
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/**
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* gst_video_interlace_mode_from_string:
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* @mode: a mode
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*
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* Convert @mode to a #GstVideoInterlaceMode
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*
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* Returns: the #GstVideoInterlaceMode of @mode or
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* #GST_VIDEO_INTERLACE_MODE_PROGRESSIVE when @mode is not a valid
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* string representation for a #GstVideoInterlaceMode.
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*
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* Since: 1.6
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*/
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GstVideoInterlaceMode
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gst_video_interlace_mode_from_string (const gchar * mode)
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{
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gint i;
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for (i = 0; i < G_N_ELEMENTS (interlace_mode); i++) {
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if (g_str_equal (interlace_mode[i], mode))
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return i;
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}
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return GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
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}
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static const gchar *field_order[] = {
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"unknown",
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"top-field-first",
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"bottom-field-first"
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};
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/**
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* gst_video_field_order_to_string:
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* @order: a #GstVideoFieldOrder
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*
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* Convert @order to its string representation.
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*
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* Returns: @order as a string or NULL if @order in invalid.
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*
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* Since: 1.12
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*/
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const gchar *
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gst_video_field_order_to_string (GstVideoFieldOrder order)
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{
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if (((guint) order) >= G_N_ELEMENTS (field_order))
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return NULL;
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return field_order[order];
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}
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/**
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* gst_video_field_order_from_string:
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* @order: a field order
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*
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* Convert @order to a #GstVideoFieldOrder
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*
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* Returns: the #GstVideoFieldOrder of @order or
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* #GST_VIDEO_FIELD_ORDER_UNKNOWN when @order is not a valid
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* string representation for a #GstVideoFieldOrder.
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*
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* Since: 1.12
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*/
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GstVideoFieldOrder
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gst_video_field_order_from_string (const gchar * order)
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{
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gint i;
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for (i = 0; i < G_N_ELEMENTS (field_order); i++) {
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if (g_str_equal (field_order[i], order))
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return i;
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}
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return GST_VIDEO_FIELD_ORDER_UNKNOWN;
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}
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/**
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* gst_video_info_from_caps:
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* @info: a #GstVideoInfo
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* @caps: a #GstCaps
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*
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* Parse @caps and update @info.
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*
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* Returns: TRUE if @caps could be parsed
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*/
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gboolean
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gst_video_info_from_caps (GstVideoInfo * info, const GstCaps * caps)
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{
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GstStructure *structure;
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const gchar *s;
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GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
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gint width = 0, height = 0;
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gint fps_n, fps_d;
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gint par_n, par_d;
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guint multiview_flags;
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g_return_val_if_fail (info != NULL, FALSE);
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g_return_val_if_fail (caps != NULL, FALSE);
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g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
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GST_DEBUG ("parsing caps %" GST_PTR_FORMAT, caps);
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structure = gst_caps_get_structure (caps, 0);
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if (gst_structure_has_name (structure, "video/x-raw")) {
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if (!(s = gst_structure_get_string (structure, "format")))
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goto no_format;
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format = gst_video_format_from_string (s);
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if (format == GST_VIDEO_FORMAT_UNKNOWN)
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goto unknown_format;
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} else if (g_str_has_prefix (gst_structure_get_name (structure), "video/") ||
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g_str_has_prefix (gst_structure_get_name (structure), "image/")) {
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format = GST_VIDEO_FORMAT_ENCODED;
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} else {
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goto wrong_name;
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}
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/* width and height are mandatory, except for non-raw-formats */
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if (!gst_structure_get_int (structure, "width", &width) &&
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format != GST_VIDEO_FORMAT_ENCODED)
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goto no_width;
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if (!gst_structure_get_int (structure, "height", &height) &&
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format != GST_VIDEO_FORMAT_ENCODED)
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goto no_height;
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gst_video_info_init (info);
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info->finfo = gst_video_format_get_info (format);
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info->width = width;
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info->height = height;
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if (gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)) {
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if (fps_n == 0) {
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/* variable framerate */
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info->flags |= GST_VIDEO_FLAG_VARIABLE_FPS;
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/* see if we have a max-framerate */
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gst_structure_get_fraction (structure, "max-framerate", &fps_n, &fps_d);
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}
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info->fps_n = fps_n;
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info->fps_d = fps_d;
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} else {
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/* unspecified is variable framerate */
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info->fps_n = 0;
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info->fps_d = 1;
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}
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if (gst_structure_get_fraction (structure, "pixel-aspect-ratio",
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&par_n, &par_d)) {
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info->par_n = par_n;
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info->par_d = par_d;
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} else {
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info->par_n = 1;
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info->par_d = 1;
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}
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if ((s = gst_structure_get_string (structure, "interlace-mode")))
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info->interlace_mode = gst_video_interlace_mode_from_string (s);
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else
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info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
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if (info->interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED &&
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(s = gst_structure_get_string (structure, "field-order"))) {
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GST_VIDEO_INFO_FIELD_ORDER (info) = gst_video_field_order_from_string (s);
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} else {
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GST_VIDEO_INFO_FIELD_ORDER (info) = GST_VIDEO_FIELD_ORDER_UNKNOWN;
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}
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{
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if ((s = gst_structure_get_string (structure, "multiview-mode")))
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GST_VIDEO_INFO_MULTIVIEW_MODE (info) =
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gst_video_multiview_mode_from_caps_string (s);
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else
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GST_VIDEO_INFO_MULTIVIEW_MODE (info) = GST_VIDEO_MULTIVIEW_MODE_NONE;
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if (gst_structure_get_flagset (structure, "multiview-flags",
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&multiview_flags, NULL))
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GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) = multiview_flags;
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if (!gst_structure_get_int (structure, "views", &info->views))
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info->views = 1;
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|
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/* At one point, I tried normalising the half-aspect flag here,
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* but it behaves weird for GstVideoInfo operations other than
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* directly converting to/from caps - sometimes causing the
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* PAR to be doubled/halved too many times */
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}
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if ((s = gst_structure_get_string (structure, "chroma-site")))
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info->chroma_site = gst_video_chroma_from_string (s);
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else
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info->chroma_site = GST_VIDEO_CHROMA_SITE_UNKNOWN;
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if ((s = gst_structure_get_string (structure, "colorimetry"))) {
|
|
if (!gst_video_colorimetry_from_string (&info->colorimetry, s)) {
|
|
GST_WARNING ("unparsable colorimetry, using default");
|
|
set_default_colorimetry (info);
|
|
} else if (!validate_colorimetry (info)) {
|
|
GST_WARNING ("invalid colorimetry, using default");
|
|
set_default_colorimetry (info);
|
|
} else {
|
|
/* force RGB matrix for RGB formats */
|
|
if (GST_VIDEO_FORMAT_INFO_IS_RGB (info->finfo) &&
|
|
info->colorimetry.matrix != GST_VIDEO_COLOR_MATRIX_RGB) {
|
|
GST_WARNING ("invalid matrix %d for RGB format, using RGB",
|
|
info->colorimetry.matrix);
|
|
info->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_RGB;
|
|
}
|
|
}
|
|
} else {
|
|
GST_DEBUG ("no colorimetry, using default");
|
|
set_default_colorimetry (info);
|
|
}
|
|
|
|
if (!fill_planes (info))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
|
|
/* ERROR */
|
|
wrong_name:
|
|
{
|
|
GST_ERROR ("wrong name '%s', expected video/ or image/",
|
|
gst_structure_get_name (structure));
|
|
return FALSE;
|
|
}
|
|
no_format:
|
|
{
|
|
GST_ERROR ("no format given");
|
|
return FALSE;
|
|
}
|
|
unknown_format:
|
|
{
|
|
GST_ERROR ("unknown format '%s' given", s);
|
|
return FALSE;
|
|
}
|
|
no_width:
|
|
{
|
|
GST_ERROR ("no width property given");
|
|
return FALSE;
|
|
}
|
|
no_height:
|
|
{
|
|
GST_ERROR ("no height property given");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_is_equal:
|
|
* @info: a #GstVideoInfo
|
|
* @other: a #GstVideoInfo
|
|
*
|
|
* Compares two #GstVideoInfo and returns whether they are equal or not
|
|
*
|
|
* Returns: %TRUE if @info and @other are equal, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_video_info_is_equal (const GstVideoInfo * info, const GstVideoInfo * other)
|
|
{
|
|
gint i;
|
|
|
|
if (GST_VIDEO_INFO_FORMAT (info) != GST_VIDEO_INFO_FORMAT (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_INTERLACE_MODE (info) !=
|
|
GST_VIDEO_INFO_INTERLACE_MODE (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_FLAGS (info) != GST_VIDEO_INFO_FLAGS (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_WIDTH (info) != GST_VIDEO_INFO_WIDTH (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_HEIGHT (info) != GST_VIDEO_INFO_HEIGHT (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_SIZE (info) != GST_VIDEO_INFO_SIZE (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_PAR_N (info) != GST_VIDEO_INFO_PAR_N (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_PAR_D (info) != GST_VIDEO_INFO_PAR_D (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_FPS_N (info) != GST_VIDEO_INFO_FPS_N (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_FPS_D (info) != GST_VIDEO_INFO_FPS_D (other))
|
|
return FALSE;
|
|
if (!gst_video_colorimetry_is_equal (&GST_VIDEO_INFO_COLORIMETRY (info),
|
|
&GST_VIDEO_INFO_COLORIMETRY (other)))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_CHROMA_SITE (info) != GST_VIDEO_INFO_CHROMA_SITE (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_MULTIVIEW_MODE (info) !=
|
|
GST_VIDEO_INFO_MULTIVIEW_MODE (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) !=
|
|
GST_VIDEO_INFO_MULTIVIEW_FLAGS (other))
|
|
return FALSE;
|
|
if (GST_VIDEO_INFO_VIEWS (info) != GST_VIDEO_INFO_VIEWS (other))
|
|
return FALSE;
|
|
|
|
for (i = 0; i < info->finfo->n_planes; i++) {
|
|
if (info->stride[i] != other->stride[i])
|
|
return FALSE;
|
|
if (info->offset[i] != other->offset[i])
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_to_caps:
|
|
* @info: a #GstVideoInfo
|
|
*
|
|
* Convert the values of @info into a #GstCaps.
|
|
*
|
|
* Returns: a new #GstCaps containing the info of @info.
|
|
*/
|
|
GstCaps *
|
|
gst_video_info_to_caps (GstVideoInfo * info)
|
|
{
|
|
GstCaps *caps;
|
|
const gchar *format;
|
|
gchar *color;
|
|
gint par_n, par_d;
|
|
GstVideoColorimetry colorimetry;
|
|
|
|
g_return_val_if_fail (info != NULL, NULL);
|
|
g_return_val_if_fail (info->finfo != NULL, NULL);
|
|
g_return_val_if_fail (info->finfo->format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
|
|
|
|
format = gst_video_format_to_string (info->finfo->format);
|
|
g_return_val_if_fail (format != NULL, NULL);
|
|
|
|
caps = gst_caps_new_simple ("video/x-raw",
|
|
"format", G_TYPE_STRING, format,
|
|
"width", G_TYPE_INT, info->width,
|
|
"height", G_TYPE_INT, info->height, NULL);
|
|
|
|
par_n = info->par_n;
|
|
par_d = info->par_d;
|
|
|
|
gst_caps_set_simple (caps, "interlace-mode", G_TYPE_STRING,
|
|
gst_video_interlace_mode_to_string (info->interlace_mode), NULL);
|
|
|
|
if (info->interlace_mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED &&
|
|
GST_VIDEO_INFO_FIELD_ORDER (info) != GST_VIDEO_FIELD_ORDER_UNKNOWN) {
|
|
gst_caps_set_simple (caps, "field-order", G_TYPE_STRING,
|
|
gst_video_field_order_to_string (GST_VIDEO_INFO_FIELD_ORDER (info)),
|
|
NULL);
|
|
}
|
|
|
|
if (info->interlace_mode == GST_VIDEO_INTERLACE_MODE_ALTERNATE) {
|
|
/* 'alternate' mode must always be accompanied by interlaced caps feature.
|
|
*/
|
|
GstCapsFeatures *features;
|
|
|
|
features = gst_caps_features_new (GST_CAPS_FEATURE_FORMAT_INTERLACED, NULL);
|
|
gst_caps_set_features (caps, 0, features);
|
|
}
|
|
|
|
if (GST_VIDEO_INFO_MULTIVIEW_MODE (info) != GST_VIDEO_MULTIVIEW_MODE_NONE) {
|
|
const gchar *caps_str = NULL;
|
|
|
|
/* If the half-aspect flag is set, applying it into the PAR of the
|
|
* resulting caps now seems safe, and helps with automatic behaviour
|
|
* in elements that aren't explicitly multiview aware */
|
|
if (GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) &
|
|
GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT) {
|
|
GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) &=
|
|
~GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
|
|
switch (GST_VIDEO_INFO_MULTIVIEW_MODE (info)) {
|
|
case GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE:
|
|
case GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX:
|
|
case GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED:
|
|
case GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD:
|
|
par_n *= 2; /* double the width / half the height */
|
|
break;
|
|
case GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED:
|
|
case GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM:
|
|
par_d *= 2; /* half the width / double the height */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
caps_str =
|
|
gst_video_multiview_mode_to_caps_string (GST_VIDEO_INFO_MULTIVIEW_MODE
|
|
(info));
|
|
if (caps_str != NULL) {
|
|
gst_caps_set_simple (caps, "multiview-mode", G_TYPE_STRING,
|
|
caps_str, "multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
|
|
GST_VIDEO_INFO_MULTIVIEW_FLAGS (info), GST_FLAG_SET_MASK_EXACT, NULL);
|
|
}
|
|
}
|
|
|
|
gst_caps_set_simple (caps, "pixel-aspect-ratio",
|
|
GST_TYPE_FRACTION, par_n, par_d, NULL);
|
|
|
|
if (info->chroma_site != GST_VIDEO_CHROMA_SITE_UNKNOWN)
|
|
gst_caps_set_simple (caps, "chroma-site", G_TYPE_STRING,
|
|
gst_video_chroma_to_string (info->chroma_site), NULL);
|
|
|
|
/* make sure we set the RGB matrix for RGB formats */
|
|
colorimetry = info->colorimetry;
|
|
if (GST_VIDEO_FORMAT_INFO_IS_RGB (info->finfo) &&
|
|
colorimetry.matrix != GST_VIDEO_COLOR_MATRIX_RGB) {
|
|
GST_WARNING ("invalid matrix %d for RGB format, using RGB",
|
|
colorimetry.matrix);
|
|
colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_RGB;
|
|
}
|
|
if ((color = gst_video_colorimetry_to_string (&colorimetry))) {
|
|
gst_caps_set_simple (caps, "colorimetry", G_TYPE_STRING, color, NULL);
|
|
g_free (color);
|
|
}
|
|
|
|
if (info->views > 1)
|
|
gst_caps_set_simple (caps, "views", G_TYPE_INT, info->views, NULL);
|
|
|
|
if (info->flags & GST_VIDEO_FLAG_VARIABLE_FPS && info->fps_n != 0) {
|
|
/* variable fps with a max-framerate */
|
|
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION, 0, 1,
|
|
"max-framerate", GST_TYPE_FRACTION, info->fps_n, info->fps_d, NULL);
|
|
} else {
|
|
/* no variable fps or no max-framerate */
|
|
gst_caps_set_simple (caps, "framerate", GST_TYPE_FRACTION,
|
|
info->fps_n, info->fps_d, NULL);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static gboolean
|
|
fill_planes (GstVideoInfo * info)
|
|
{
|
|
gsize width, height, cr_h;
|
|
gint bpp = 0, i;
|
|
|
|
width = (gsize) info->width;
|
|
height = (gsize) GST_VIDEO_INFO_FIELD_HEIGHT (info);
|
|
|
|
/* Sanity check the resulting frame size for overflows */
|
|
for (i = 0; i < GST_VIDEO_INFO_N_COMPONENTS (info); i++)
|
|
bpp += GST_VIDEO_INFO_COMP_DEPTH (info, i);
|
|
bpp = GST_ROUND_UP_8 (bpp) / 8;
|
|
if (bpp > 0 && GST_ROUND_UP_128 ((guint64) width) * ((guint64) height) >=
|
|
G_MAXUINT / bpp) {
|
|
GST_ERROR ("Frame size %ux%u would overflow", info->width, info->height);
|
|
return FALSE;
|
|
}
|
|
|
|
switch (info->finfo->format) {
|
|
case GST_VIDEO_FORMAT_YUY2:
|
|
case GST_VIDEO_FORMAT_YVYU:
|
|
case GST_VIDEO_FORMAT_UYVY:
|
|
case GST_VIDEO_FORMAT_VYUY:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_r210:
|
|
info->stride[0] = width * 4;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB16:
|
|
case GST_VIDEO_FORMAT_BGR16:
|
|
case GST_VIDEO_FORMAT_RGB15:
|
|
case GST_VIDEO_FORMAT_BGR15:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
case GST_VIDEO_FORMAT_v308:
|
|
case GST_VIDEO_FORMAT_IYU2:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 3);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_v210:
|
|
info->stride[0] = ((width + 47) / 48) * 128;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_v216:
|
|
info->stride[0] = GST_ROUND_UP_8 (width * 4);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY8:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY16_BE:
|
|
case GST_VIDEO_FORMAT_GRAY16_LE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_UYVP:
|
|
info->stride[0] = GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_RGB8P:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = 4;
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->size = info->offset[1] + (4 * 256);
|
|
break;
|
|
case GST_VIDEO_FORMAT_IYU1:
|
|
info->stride[0] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) +
|
|
GST_ROUND_UP_4 (width) / 2);
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_ARGB64:
|
|
case GST_VIDEO_FORMAT_AYUV64:
|
|
info->stride[0] = width * 8;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_YV12: /* same as I420, but plane 1+2 swapped */
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
|
|
info->size = info->offset[2] + info->stride[2] * cr_h;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y41B:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_16 (width) / 4;
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] + info->stride[1] * height;
|
|
/* simplification of ROUNDUP4(w)*h + 2*((ROUNDUP16(w)/4)*h */
|
|
info->size = (info->stride[0] + (GST_ROUND_UP_16 (width) / 2)) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y42B:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_8 (width) / 2;
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] + info->stride[1] * height;
|
|
/* simplification of ROUNDUP4(w)*h + 2*(ROUNDUP8(w)/2)*h */
|
|
info->size = (info->stride[0] + GST_ROUND_UP_8 (width)) * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
case GST_VIDEO_FORMAT_GBR:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = info->stride[0];
|
|
info->stride[2] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] * 2;
|
|
info->size = info->stride[0] * height * 3;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GBRA:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = info->stride[0];
|
|
info->stride[2] = info->stride[0];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] * 2;
|
|
info->offset[3] = info->offset[1] * 3;
|
|
info->size = info->stride[0] * height * 4;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12:
|
|
case GST_VIDEO_FORMAT_NV21:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->size = info->offset[1] + info->stride[0] * cr_h;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV16:
|
|
case GST_VIDEO_FORMAT_NV61:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->size = info->stride[0] * height * 2;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV24:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (width * 2);
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->size = info->stride[0] * height + info->stride[1] * height;
|
|
break;
|
|
case GST_VIDEO_FORMAT_A420:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
|
|
info->stride[2] = info->stride[1];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
|
|
info->offset[3] = info->offset[2] + info->stride[2] * cr_h;
|
|
info->size = info->offset[3] + info->stride[0] * GST_ROUND_UP_2 (height);
|
|
break;
|
|
case GST_VIDEO_FORMAT_YUV9:
|
|
case GST_VIDEO_FORMAT_YVU9:
|
|
info->stride[0] = GST_ROUND_UP_4 (width);
|
|
info->stride[1] = GST_ROUND_UP_4 (GST_ROUND_UP_4 (width) / 4);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
cr_h = GST_ROUND_UP_4 (height) / 4;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
|
|
info->size = info->offset[2] + info->stride[2] * cr_h;
|
|
break;
|
|
case GST_VIDEO_FORMAT_I420_10LE:
|
|
case GST_VIDEO_FORMAT_I420_10BE:
|
|
case GST_VIDEO_FORMAT_I420_12LE:
|
|
case GST_VIDEO_FORMAT_I420_12BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = GST_ROUND_UP_4 (width);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
|
|
info->size = info->offset[2] + info->stride[2] * cr_h;
|
|
break;
|
|
case GST_VIDEO_FORMAT_I422_10LE:
|
|
case GST_VIDEO_FORMAT_I422_10BE:
|
|
case GST_VIDEO_FORMAT_I422_12LE:
|
|
case GST_VIDEO_FORMAT_I422_12BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = GST_ROUND_UP_4 (width);
|
|
info->stride[2] = info->stride[1];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
info->offset[2] = info->offset[1] +
|
|
info->stride[1] * GST_ROUND_UP_2 (height);
|
|
info->size = info->offset[2] + info->stride[2] * GST_ROUND_UP_2 (height);
|
|
break;
|
|
case GST_VIDEO_FORMAT_Y444_10LE:
|
|
case GST_VIDEO_FORMAT_Y444_10BE:
|
|
case GST_VIDEO_FORMAT_Y444_12LE:
|
|
case GST_VIDEO_FORMAT_Y444_12BE:
|
|
case GST_VIDEO_FORMAT_GBR_10LE:
|
|
case GST_VIDEO_FORMAT_GBR_10BE:
|
|
case GST_VIDEO_FORMAT_GBR_12LE:
|
|
case GST_VIDEO_FORMAT_GBR_12BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = info->stride[0];
|
|
info->stride[2] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] * 2;
|
|
info->size = info->stride[0] * height * 3;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GBRA_10LE:
|
|
case GST_VIDEO_FORMAT_GBRA_10BE:
|
|
case GST_VIDEO_FORMAT_GBRA_12LE:
|
|
case GST_VIDEO_FORMAT_GBRA_12BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = info->stride[0];
|
|
info->stride[2] = info->stride[0];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] * 2;
|
|
info->offset[3] = info->offset[1] * 3;
|
|
info->size = info->stride[0] * height * 4;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12_64Z32:
|
|
info->stride[0] =
|
|
GST_VIDEO_TILE_MAKE_STRIDE (GST_ROUND_UP_128 (width) / 64,
|
|
GST_ROUND_UP_32 (height) / 32);
|
|
info->stride[1] =
|
|
GST_VIDEO_TILE_MAKE_STRIDE (GST_ROUND_UP_128 (width) / 64,
|
|
GST_ROUND_UP_64 (height) / 64);
|
|
info->offset[0] = 0;
|
|
info->offset[1] = GST_ROUND_UP_128 (width) * GST_ROUND_UP_32 (height);
|
|
info->size = info->offset[1] +
|
|
GST_ROUND_UP_128 (width) * GST_ROUND_UP_64 (height) / 2;
|
|
break;
|
|
case GST_VIDEO_FORMAT_A420_10LE:
|
|
case GST_VIDEO_FORMAT_A420_10BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = GST_ROUND_UP_4 (width);
|
|
info->stride[2] = info->stride[1];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->offset[2] = info->offset[1] + info->stride[1] * cr_h;
|
|
info->offset[3] = info->offset[2] + info->stride[2] * cr_h;
|
|
info->size = info->offset[3] + info->stride[0] * GST_ROUND_UP_2 (height);
|
|
break;
|
|
case GST_VIDEO_FORMAT_A422_10LE:
|
|
case GST_VIDEO_FORMAT_A422_10BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = GST_ROUND_UP_4 (width);
|
|
info->stride[2] = info->stride[1];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
info->offset[2] = info->offset[1] +
|
|
info->stride[1] * GST_ROUND_UP_2 (height);
|
|
info->offset[3] =
|
|
info->offset[2] + info->stride[2] * GST_ROUND_UP_2 (height);
|
|
info->size = info->offset[3] + info->stride[0] * GST_ROUND_UP_2 (height);
|
|
break;
|
|
case GST_VIDEO_FORMAT_A444_10LE:
|
|
case GST_VIDEO_FORMAT_A444_10BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = info->stride[0];
|
|
info->stride[2] = info->stride[0];
|
|
info->stride[3] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->offset[2] = info->offset[1] * 2;
|
|
info->offset[3] = info->offset[1] * 3;
|
|
info->size = info->stride[0] * height * 4;
|
|
break;
|
|
case GST_VIDEO_FORMAT_P010_10LE:
|
|
case GST_VIDEO_FORMAT_P010_10BE:
|
|
info->stride[0] = GST_ROUND_UP_4 (width * 2);
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
info->size = info->offset[1] + info->stride[0] * cr_h;
|
|
break;
|
|
case GST_VIDEO_FORMAT_GRAY10_LE32:
|
|
info->stride[0] = (width + 2) / 3 * 4;
|
|
info->offset[0] = 0;
|
|
info->size = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12_10LE32:
|
|
info->stride[0] = (width + 2) / 3 * 4;
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->size = info->offset[1] + info->stride[0] * cr_h;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV16_10LE32:
|
|
info->stride[0] = (width + 2) / 3 * 4;
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * height;
|
|
info->size = info->stride[0] * height * 2;
|
|
break;
|
|
case GST_VIDEO_FORMAT_NV12_10LE40:
|
|
info->stride[0] = ((width * 5 >> 2) + 4) / 5 * 5;
|
|
info->stride[1] = info->stride[0];
|
|
info->offset[0] = 0;
|
|
info->offset[1] = info->stride[0] * GST_ROUND_UP_2 (height);
|
|
cr_h = GST_ROUND_UP_2 (height) / 2;
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (info))
|
|
cr_h = GST_ROUND_UP_2 (cr_h);
|
|
info->size = info->offset[1] + info->stride[0] * cr_h;
|
|
break;
|
|
|
|
case GST_VIDEO_FORMAT_ENCODED:
|
|
break;
|
|
case GST_VIDEO_FORMAT_UNKNOWN:
|
|
GST_ERROR ("invalid format");
|
|
g_warning ("invalid format");
|
|
return FALSE;
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_convert:
|
|
* @info: a #GstVideoInfo
|
|
* @src_format: #GstFormat of the @src_value
|
|
* @src_value: value to convert
|
|
* @dest_format: #GstFormat of the @dest_value
|
|
* @dest_value: (out): pointer to destination value
|
|
*
|
|
* Converts among various #GstFormat types. This function handles
|
|
* GST_FORMAT_BYTES, GST_FORMAT_TIME, and GST_FORMAT_DEFAULT. For
|
|
* raw video, GST_FORMAT_DEFAULT corresponds to video frames. This
|
|
* function can be used to handle pad queries of the type GST_QUERY_CONVERT.
|
|
*
|
|
* Returns: TRUE if the conversion was successful.
|
|
*/
|
|
gboolean
|
|
gst_video_info_convert (GstVideoInfo * info,
|
|
GstFormat src_format, gint64 src_value,
|
|
GstFormat dest_format, gint64 * dest_value)
|
|
{
|
|
gboolean ret = FALSE;
|
|
int fps_n, fps_d;
|
|
gsize size;
|
|
|
|
g_return_val_if_fail (info != NULL, 0);
|
|
g_return_val_if_fail (info->finfo != NULL, 0);
|
|
g_return_val_if_fail (info->finfo->format != GST_VIDEO_FORMAT_UNKNOWN, 0);
|
|
g_return_val_if_fail (info->size > 0, 0);
|
|
|
|
size = info->size;
|
|
fps_n = info->fps_n;
|
|
fps_d = info->fps_d;
|
|
|
|
GST_DEBUG ("converting value %" G_GINT64_FORMAT " from %s to %s",
|
|
src_value, gst_format_get_name (src_format),
|
|
gst_format_get_name (dest_format));
|
|
|
|
if (src_format == dest_format) {
|
|
*dest_value = src_value;
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
if (src_value == -1) {
|
|
*dest_value = -1;
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* bytes to frames */
|
|
if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_DEFAULT) {
|
|
if (size != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value, 1, size);
|
|
} else {
|
|
GST_ERROR ("blocksize is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* frames to bytes */
|
|
if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_BYTES) {
|
|
*dest_value = gst_util_uint64_scale (src_value, size, 1);
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* time to frames */
|
|
if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_DEFAULT) {
|
|
if (fps_d != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
fps_n, GST_SECOND * fps_d);
|
|
} else {
|
|
GST_ERROR ("framerate denominator is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* frames to time */
|
|
if (src_format == GST_FORMAT_DEFAULT && dest_format == GST_FORMAT_TIME) {
|
|
if (fps_n != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
GST_SECOND * fps_d, fps_n);
|
|
} else {
|
|
GST_ERROR ("framerate numerator is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* time to bytes */
|
|
if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_BYTES) {
|
|
if (fps_d != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
fps_n * size, GST_SECOND * fps_d);
|
|
} else {
|
|
GST_ERROR ("framerate denominator is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
goto done;
|
|
}
|
|
|
|
/* bytes to time */
|
|
if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_TIME) {
|
|
if (fps_n != 0 && size != 0) {
|
|
*dest_value = gst_util_uint64_scale (src_value,
|
|
GST_SECOND * fps_d, fps_n * size);
|
|
} else {
|
|
GST_ERROR ("framerate denominator and/or blocksize is 0");
|
|
*dest_value = 0;
|
|
}
|
|
ret = TRUE;
|
|
}
|
|
|
|
done:
|
|
|
|
GST_DEBUG ("ret=%d result %" G_GINT64_FORMAT, ret, *dest_value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gst_video_info_align:
|
|
* @info: a #GstVideoInfo
|
|
* @align: alignment parameters
|
|
*
|
|
* Adjust the offset and stride fields in @info so that the padding and
|
|
* stride alignment in @align is respected.
|
|
*
|
|
* Extra padding will be added to the right side when stride alignment padding
|
|
* is required and @align will be updated with the new padding values.
|
|
*
|
|
* Returns: %FALSE if alignment could not be applied, e.g. because the
|
|
* size of a frame can't be represented as a 32 bit integer (Since: 1.12)
|
|
*/
|
|
gboolean
|
|
gst_video_info_align (GstVideoInfo * info, GstVideoAlignment * align)
|
|
{
|
|
const GstVideoFormatInfo *vinfo = info->finfo;
|
|
gint width, height;
|
|
gint padded_width, padded_height;
|
|
gint i, n_planes;
|
|
gboolean aligned;
|
|
|
|
width = GST_VIDEO_INFO_WIDTH (info);
|
|
height = GST_VIDEO_INFO_HEIGHT (info);
|
|
|
|
GST_LOG ("padding %u-%ux%u-%u", align->padding_top,
|
|
align->padding_left, align->padding_right, align->padding_bottom);
|
|
|
|
n_planes = GST_VIDEO_INFO_N_PLANES (info);
|
|
|
|
if (GST_VIDEO_FORMAT_INFO_HAS_PALETTE (vinfo))
|
|
n_planes--;
|
|
|
|
/* first make sure the left padding does not cause alignment problems later */
|
|
do {
|
|
GST_LOG ("left padding %u", align->padding_left);
|
|
aligned = TRUE;
|
|
for (i = 0; i < n_planes; i++) {
|
|
gint hedge;
|
|
|
|
/* this is the amout of pixels to add as left padding */
|
|
hedge = GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (vinfo, i, align->padding_left);
|
|
hedge *= GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, i);
|
|
|
|
GST_LOG ("plane %d, padding %d, alignment %u", i, hedge,
|
|
align->stride_align[i]);
|
|
aligned &= (hedge & align->stride_align[i]) == 0;
|
|
}
|
|
if (aligned)
|
|
break;
|
|
|
|
GST_LOG ("unaligned padding, increasing padding");
|
|
/* increase padded_width */
|
|
align->padding_left += align->padding_left & ~(align->padding_left - 1);
|
|
} while (!aligned);
|
|
|
|
/* add the padding */
|
|
padded_width = width + align->padding_left + align->padding_right;
|
|
padded_height = height + align->padding_top + align->padding_bottom;
|
|
|
|
do {
|
|
GST_LOG ("padded dimension %u-%u", padded_width, padded_height);
|
|
|
|
info->width = padded_width;
|
|
info->height = padded_height;
|
|
|
|
if (!fill_planes (info))
|
|
return FALSE;
|
|
|
|
/* check alignment */
|
|
aligned = TRUE;
|
|
for (i = 0; i < n_planes; i++) {
|
|
GST_LOG ("plane %d, stride %d, alignment %u", i, info->stride[i],
|
|
align->stride_align[i]);
|
|
aligned &= (info->stride[i] & align->stride_align[i]) == 0;
|
|
}
|
|
if (aligned)
|
|
break;
|
|
|
|
GST_LOG ("unaligned strides, increasing dimension");
|
|
/* increase padded_width */
|
|
padded_width += padded_width & ~(padded_width - 1);
|
|
} while (!aligned);
|
|
|
|
align->padding_right = padded_width - width - align->padding_left;
|
|
|
|
info->width = width;
|
|
info->height = height;
|
|
|
|
for (i = 0; i < n_planes; i++) {
|
|
gint vedge, hedge, comp;
|
|
|
|
/* Find the component for this plane, FIXME, we assume the plane number and
|
|
* component number is the same for now, for scaling the dimensions this is
|
|
* currently true for all formats but it might not be when adding new
|
|
* formats. We might need to add a plane subsamling in the format info to
|
|
* make this more generic or maybe use a plane -> component mapping. */
|
|
comp = i;
|
|
|
|
hedge =
|
|
GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (vinfo, comp, align->padding_left);
|
|
vedge =
|
|
GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (vinfo, comp, align->padding_top);
|
|
|
|
GST_DEBUG ("plane %d: comp: %d, hedge %d vedge %d align %d stride %d", i,
|
|
comp, hedge, vedge, align->stride_align[i], info->stride[i]);
|
|
|
|
info->offset[i] += (vedge * info->stride[i]) +
|
|
(hedge * GST_VIDEO_FORMAT_INFO_PSTRIDE (vinfo, comp));
|
|
}
|
|
|
|
return TRUE;
|
|
}
|