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gstreamer/gst-libs/gst/video/video-info.c
Nicolas Dufresne 98b44fdb46 video: Add support for linear 32x32 NV12 tiles 
This adds linear 32x32 NV12 based tiles. This format is notably used by
Allwinner VCU and exposed in V4L2 as being "SUNXI Tiled" format. In this
patch we generalize the plane info calculation so we can share this part
with the 4L4 variant.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/754>
2020-07-14 21:43:56 -04:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net>
* Copyright (C) 2007 David A. Schleef <ds@schleef.org>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:video-info
* @title: GstVideoInfo
* @short_description: Structures and enumerations to describe raw images
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <stdio.h>
#include "video-info.h"
#include "video-tile.h"
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT ensure_debug_category()
static GstDebugCategory *
ensure_debug_category (void)
{
static gsize cat_gonce = 0;
if (g_once_init_enter (&cat_gonce)) {
gsize cat_done;
cat_done = (gsize) _gst_debug_category_new ("video-info", 0,
"video-info structure");
g_once_init_leave (&cat_gonce, cat_done);
}
return (GstDebugCategory *) cat_gonce;
}
#else
#define ensure_debug_category() /* NOOP */
#endif /* GST_DISABLE_GST_DEBUG */
/**
* gst_video_info_copy:
* @info: a #GstVideoInfo
*
* Copy a GstVideoInfo structure.
*
* Returns: a new #GstVideoInfo. free with gst_video_info_free.
*
* Since: 1.6
*/
GstVideoInfo *
gst_video_info_copy (const GstVideoInfo * info)
{
return g_slice_dup (GstVideoInfo, info);
}
/**
* gst_video_info_free:
* @info: a #GstVideoInfo
*
* Free a GstVideoInfo structure previously allocated with gst_video_info_new()
* or gst_video_info_copy().
*
* Since: 1.6
*/
void
gst_video_info_free (GstVideoInfo * info)
{
g_slice_free (GstVideoInfo, info);
}
G_DEFINE_BOXED_TYPE (GstVideoInfo, gst_video_info,
(GBoxedCopyFunc) gst_video_info_copy, (GBoxedFreeFunc) gst_video_info_free);
/**
* gst_video_info_new:
*
* Allocate a new #GstVideoInfo that is also initialized with
* gst_video_info_init().
*
* Returns: a new #GstVideoInfo. free with gst_video_info_free().
*
* Since: 1.6
*/
GstVideoInfo *
gst_video_info_new (void)
{
GstVideoInfo *info;
info = g_slice_new (GstVideoInfo);
gst_video_info_init (info);
return info;
}
static gboolean fill_planes (GstVideoInfo * info,
gsize plane_size[GST_VIDEO_MAX_PLANES]);
/**
* gst_video_info_init:
* @info: a #GstVideoInfo
*
* Initialize @info with default values.
*/
void
gst_video_info_init (GstVideoInfo * info)
{
g_return_if_fail (info != NULL);
memset (info, 0, sizeof (GstVideoInfo));
info->finfo = gst_video_format_get_info (GST_VIDEO_FORMAT_UNKNOWN);
info->views = 1;
/* arrange for sensible defaults, e.g. if turned into caps */
info->fps_n = 0;
info->fps_d = 1;
info->par_n = 1;
info->par_d = 1;
GST_VIDEO_INFO_MULTIVIEW_MODE (info) = GST_VIDEO_MULTIVIEW_MODE_NONE;
GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
GST_VIDEO_INFO_FIELD_ORDER (info) = GST_VIDEO_FIELD_ORDER_UNKNOWN;
}
#define MAKE_COLORIMETRY(r,m,t,p) { \
GST_VIDEO_COLOR_RANGE ##r, GST_VIDEO_COLOR_MATRIX_ ##m, \
GST_VIDEO_TRANSFER_ ##t, GST_VIDEO_COLOR_PRIMARIES_ ##p }
#define DEFAULT_YUV_SD 0
#define DEFAULT_YUV_HD 1
#define DEFAULT_RGB 2
#define DEFAULT_GRAY 3
#define DEFAULT_UNKNOWN 4
#define DEFAULT_YUV_UHD 5
static const GstVideoColorimetry default_color[] = {
MAKE_COLORIMETRY (_16_235, BT601, BT601, SMPTE170M),
MAKE_COLORIMETRY (_16_235, BT709, BT709, BT709),
MAKE_COLORIMETRY (_0_255, RGB, SRGB, BT709),
MAKE_COLORIMETRY (_0_255, BT601, UNKNOWN, UNKNOWN),
MAKE_COLORIMETRY (_UNKNOWN, UNKNOWN, UNKNOWN, UNKNOWN),
MAKE_COLORIMETRY (_16_235, BT2020, BT2020_12, BT2020),
};
static void
set_default_colorimetry (GstVideoInfo * info)
{
const GstVideoFormatInfo *finfo = info->finfo;
if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo)) {
if (info->height >= 2160) {
info->chroma_site = GST_VIDEO_CHROMA_SITE_H_COSITED;
info->colorimetry = default_color[DEFAULT_YUV_UHD];
} else if (info->height > 576) {
info->chroma_site = GST_VIDEO_CHROMA_SITE_H_COSITED;
info->colorimetry = default_color[DEFAULT_YUV_HD];
} else {
info->chroma_site = GST_VIDEO_CHROMA_SITE_NONE;
info->colorimetry = default_color[DEFAULT_YUV_SD];
}
} else if (GST_VIDEO_FORMAT_INFO_IS_GRAY (finfo)) {
info->colorimetry = default_color[DEFAULT_GRAY];
} else if (GST_VIDEO_FORMAT_INFO_IS_RGB (finfo)) {
info->colorimetry = default_color[DEFAULT_RGB];
} else {
info->colorimetry = default_color[DEFAULT_UNKNOWN];
}
}
static gboolean
validate_colorimetry (GstVideoInfo * info)
{
const GstVideoFormatInfo *finfo = info->finfo;
if (!GST_VIDEO_FORMAT_INFO_IS_RGB (finfo) &&
info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_RGB) {
GST_WARNING
("color matrix RGB is only supported with RGB format, %s is not",
finfo->name);
return FALSE;
}
if (GST_VIDEO_FORMAT_INFO_IS_YUV (finfo) &&
info->colorimetry.matrix == GST_VIDEO_COLOR_MATRIX_UNKNOWN) {
GST_WARNING ("Need to specify a color matrix when using YUV format (%s)",
finfo->name);
return FALSE;
}
return TRUE;
}
static gboolean
gst_video_info_set_format_common (GstVideoInfo * info, GstVideoFormat format,
guint width, guint height)
{
g_return_val_if_fail (info != NULL, FALSE);
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, FALSE);
if (width > G_MAXINT || height > G_MAXINT)
return FALSE;
gst_video_info_init (info);
info->finfo = gst_video_format_get_info (format);
info->width = width;
info->height = height;
info->views = 1;
set_default_colorimetry (info);
return TRUE;
}
/**
* gst_video_info_set_format:
* @info: a #GstVideoInfo
* @format: the format
* @width: a width
* @height: a height
*
* Set the default info for a video frame of @format and @width and @height.
*
* Note: This initializes @info first, no values are preserved. This function
* does not set the offsets correctly for interlaced vertically
* subsampled formats.
*
* Returns: %FALSE if the returned video info is invalid, e.g. because the
* size of a frame can't be represented as a 32 bit integer (Since: 1.12)
*/
gboolean
gst_video_info_set_format (GstVideoInfo * info, GstVideoFormat format,
guint width, guint height)
{
if (!gst_video_info_set_format_common (info, format, width, height))
return FALSE;
return fill_planes (info, NULL);
}
/**
* gst_video_info_set_interlaced_format:
* @info: a #GstVideoInfo
* @format: the format
* @mode: a #GstVideoInterlaceMode
* @width: a width
* @height: a height
*
* Same as #gst_video_info_set_format but also allowing to set the interlaced
* mode.
*
* Returns: %FALSE if the returned video info is invalid, e.g. because the
* size of a frame can't be represented as a 32 bit integer.
*
* Since: 1.16
*/
gboolean
gst_video_info_set_interlaced_format (GstVideoInfo * info,
GstVideoFormat format, GstVideoInterlaceMode mode, guint width,
guint height)
{
if (!gst_video_info_set_format_common (info, format, width, height))
return FALSE;
GST_VIDEO_INFO_INTERLACE_MODE (info) = mode;
return fill_planes (info, NULL);
}
static const gchar *interlace_mode[] = {
"progressive",
"interleaved",
"mixed",
"fields",
"alternate"
};
/**
* gst_video_interlace_mode_to_string:
* @mode: a #GstVideoInterlaceMode
*
* Convert @mode to its string representation.
*
* Returns: @mode as a string or NULL if @mode in invalid.
*
* Since: 1.6
*/
const gchar *
gst_video_interlace_mode_to_string (GstVideoInterlaceMode mode)
{
if (((guint) mode) >= G_N_ELEMENTS (interlace_mode))
return NULL;
return interlace_mode[mode];
}
/**
* gst_video_interlace_mode_from_string:
* @mode: a mode
*
* Convert @mode to a #GstVideoInterlaceMode
*
* Returns: the #GstVideoInterlaceMode of @mode or
* #GST_VIDEO_INTERLACE_MODE_PROGRESSIVE when @mode is not a valid
* string representation for a #GstVideoInterlaceMode.
*
* Since: 1.6
*/
GstVideoInterlaceMode
gst_video_interlace_mode_from_string (const gchar * mode)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (interlace_mode); i++) {
if (g_str_equal (interlace_mode[i], mode))
return i;
}
return GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
}
static const gchar *field_order[] = {
"unknown",
"top-field-first",
"bottom-field-first"
};
/**
* gst_video_field_order_to_string:
* @order: a #GstVideoFieldOrder
*
* Convert @order to its string representation.
*
* Returns: @order as a string or NULL if @order in invalid.
*
* Since: 1.12
*/
const gchar *
gst_video_field_order_to_string (GstVideoFieldOrder order)
{
if (((guint) order) >= G_N_ELEMENTS (field_order))
return NULL;
return field_order[order];
}
/**
* gst_video_field_order_from_string:
* @order: a field order
*
* Convert @order to a #GstVideoFieldOrder
*
* Returns: the #GstVideoFieldOrder of @order or
* #GST_VIDEO_FIELD_ORDER_UNKNOWN when @order is not a valid
* string representation for a #GstVideoFieldOrder.
*
* Since: 1.12
*/
GstVideoFieldOrder
gst_video_field_order_from_string (const gchar * order)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (field_order); i++) {
if (g_str_equal (field_order[i], order))
return i;
}
return GST_VIDEO_FIELD_ORDER_UNKNOWN;
}
/**
* gst_video_info_from_caps:
* @info: a #GstVideoInfo
* @caps: a #GstCaps
*
* Parse @caps and update @info.
*
* Returns: TRUE if @caps could be parsed
*/
gboolean
gst_video_info_from_caps (GstVideoInfo * info, const GstCaps * caps)
{
GstStructure *structure;
const gchar *s;
GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
gint width = 0, height = 0;
gint fps_n, fps_d;
gint par_n, par_d;
guint multiview_flags;
g_return_val_if_fail (info != NULL, FALSE);
g_return_val_if_fail (caps != NULL, FALSE);
g_return_val_if_fail (gst_caps_is_fixed (caps), FALSE);
GST_DEBUG ("parsing caps %" GST_PTR_FORMAT, caps);
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-raw")) {
if (!(s = gst_structure_get_string (structure, "format")))
goto no_format;
format = gst_video_format_from_string (s);
if (format == GST_VIDEO_FORMAT_UNKNOWN)
goto unknown_format;
} else if (g_str_has_prefix (gst_structure_get_name (structure), "video/") ||
g_str_has_prefix (gst_structure_get_name (structure), "image/")) {
format = GST_VIDEO_FORMAT_ENCODED;
} else {
goto wrong_name;
}
/* width and height are mandatory, except for non-raw-formats */
if (!gst_structure_get_int (structure, "width", &width) &&
format != GST_VIDEO_FORMAT_ENCODED)
goto no_width;
if (!gst_structure_get_int (structure, "height", &height) &&
format != GST_VIDEO_FORMAT_ENCODED)
goto no_height;
gst_video_info_init (info);
info->finfo = gst_video_format_get_info (format);
info->width = width;
info->height = height;
if (gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)) {
if (fps_n == 0) {
/* variable framerate */
info->flags |= GST_VIDEO_FLAG_VARIABLE_FPS;
/* see if we have a max-framerate */
gst_structure_get_fraction (structure, "max-framerate", &fps_n, &fps_d);
}
info->fps_n = fps_n;
info->fps_d = fps_d;
} else {
/* unspecified is variable framerate */
info->fps_n = 0;
info->fps_d = 1;
}
if (gst_structure_get_fraction (structure, "pixel-aspect-ratio",
&par_n, &par_d)) {
info->par_n = par_n;
info->par_d = par_d;
} else {
info->par_n = 1;
info->par_d = 1;
}
if ((s = gst_structure_get_string (structure, "interlace-mode")))
info->interlace_mode = gst_video_interlace_mode_from_string (s);
else
info->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
/* Interlaced feature is mandatory for raw alternate streams */
if (info->interlace_mode == GST_VIDEO_INTERLACE_MODE_ALTERNATE &&
format != GST_VIDEO_FORMAT_ENCODED) {
GstCapsFeatures *f;
f = gst_caps_get_features (caps, 0);
if (!f
|| !gst_caps_features_contains (f, GST_CAPS_FEATURE_FORMAT_INTERLACED))
goto alternate_no_feature;
}
if (GST_VIDEO_INFO_IS_INTERLACED (info) &&
(s = gst_structure_get_string (structure, "field-order"))) {
GST_VIDEO_INFO_FIELD_ORDER (info) = gst_video_field_order_from_string (s);
} else {
GST_VIDEO_INFO_FIELD_ORDER (info) = GST_VIDEO_FIELD_ORDER_UNKNOWN;
}
{
if ((s = gst_structure_get_string (structure, "multiview-mode")))
GST_VIDEO_INFO_MULTIVIEW_MODE (info) =
gst_video_multiview_mode_from_caps_string (s);
else
GST_VIDEO_INFO_MULTIVIEW_MODE (info) = GST_VIDEO_MULTIVIEW_MODE_NONE;
if (gst_structure_get_flagset (structure, "multiview-flags",
&multiview_flags, NULL))
GST_VIDEO_INFO_MULTIVIEW_FLAGS (info) = multiview_flags;
if (!gst_structure_get_int (structure, "views", &info->views))
info->views = 1;
/* At one point, I tried normalising the half-aspect flag here,
* but it behaves weird for GstVideoInfo operations other than
* directly converting to/from caps - sometimes causing the
* PAR to be doubled/halved too many times */
}
if ((s = gst_structure_get_string (structure, "chroma-site")))
info->chroma_site = gst_video_chroma_from_string (s);
else
info->chroma_site = GST_VIDEO_CHROMA_SITE_UNKNOWN;
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, NULL))
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;
}
alternate_no_feature:
{
GST_ERROR
("caps has 'interlace-mode=alternate' but doesn't have the Interlaced feature");
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 ||
info->interlace_mode == GST_VIDEO_INTERLACE_MODE_ALTERNATE) &&
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 plane_size[GST_VIDEO_MAX_PLANES])
{
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:
case GST_VIDEO_FORMAT_Y410:
case GST_VIDEO_FORMAT_VUYA:
case GST_VIDEO_FORMAT_BGR10A2_LE:
case GST_VIDEO_FORMAT_RGB10A2_LE:
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:
case GST_VIDEO_FORMAT_Y210:
case GST_VIDEO_FORMAT_Y212_BE:
case GST_VIDEO_FORMAT_Y212_LE:
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:
case GST_VIDEO_FORMAT_Y412_BE:
case GST_VIDEO_FORMAT_Y412_LE:
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:
case GST_VIDEO_FORMAT_Y444_16LE:
case GST_VIDEO_FORMAT_Y444_16BE:
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_NV12_4L4:
case GST_VIDEO_FORMAT_NV12_32L32:
{
gint ws = GST_VIDEO_FORMAT_INFO_TILE_WS (info->finfo);
gint hs = GST_VIDEO_FORMAT_INFO_TILE_HS (info->finfo);
info->stride[0] =
GST_VIDEO_TILE_MAKE_STRIDE (GST_ROUND_UP_N (width, 1 << ws) >> ws,
GST_ROUND_UP_N (height, 1 << hs) >> hs);
info->stride[1] =
GST_VIDEO_TILE_MAKE_STRIDE (GST_ROUND_UP_N (width, 1 << ws) >> ws,
GST_ROUND_UP_N (height, 1 << (hs + 1)) >> (hs + 1));
info->offset[0] = 0;
info->offset[1] =
GST_ROUND_UP_N (width, 1 << ws) * GST_ROUND_UP_N (height, 1 << hs);
info->size = info->offset[1] +
GST_ROUND_UP_N (width, 1 << ws) *
(GST_ROUND_UP_N (height, 1 << (hs + 1)) / 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:
case GST_VIDEO_FORMAT_P016_LE:
case GST_VIDEO_FORMAT_P016_BE:
case GST_VIDEO_FORMAT_P012_LE:
case GST_VIDEO_FORMAT_P012_BE:
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;
}
if (plane_size) {
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
if (i < GST_VIDEO_INFO_N_PLANES (info)) {
gint comps[GST_VIDEO_MAX_COMPONENTS];
guint plane_height;
/* Convert plane index to component index */
gst_video_format_info_component (info->finfo, i, comps);
plane_height =
GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (info->finfo, comps[0],
GST_VIDEO_INFO_FIELD_HEIGHT (info));
plane_size[i] = plane_height * GST_VIDEO_INFO_PLANE_STRIDE (info, i);
} else {
plane_size[i] = 0;
}
}
}
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_full:
* @info: a #GstVideoInfo
* @align: alignment parameters
* @plane_size: (out) (allow-none): array used to store the plane sizes
*
* This variant of gst_video_info_align() provides the updated size, in bytes,
* of each video plane after the alignment, including all horizontal and vertical
* paddings.
*
* In case of GST_VIDEO_INTERLACE_MODE_ALTERNATE info, the returned sizes are the
* ones used to hold a single field, not the full frame.
*
* 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: 1.18
*/
gboolean
gst_video_info_align_full (GstVideoInfo * info, GstVideoAlignment * align,
gsize plane_size[GST_VIDEO_MAX_PLANES])
{
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 amount 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, plane_size))
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;
}
/**
* 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)
{
return gst_video_info_align_full (info, align, NULL);
}
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