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gstreamer/subprojects/gst-plugins-bad/sys/nvcodec/gstcudaconvertscale.c

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/* GStreamer
* Copyright (C) 2020 Thibault Saunier <tsaunier@igalia.com>
* Copyright (C) 2022 Seungha Yang <seungha@centricular.com>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gst/cuda/gstcudautils.h>
#include "gstcudaconvertscale.h"
#include "gstcudaconverter.h"
GST_DEBUG_CATEGORY_STATIC (gst_cuda_base_convert_debug);
#define GST_CAT_DEFAULT gst_cuda_base_convert_debug
#define GST_CUDA_CONVET_FORMATS \
"{ I420, YV12, NV12, NV21, P010_10LE, P012_LE, P016_LE, I420_10LE, I420_12LE, Y444, " \
"Y444_10LE, Y444_12LE, Y444_16LE, BGRA, RGBA, RGBx, BGRx, ARGB, ABGR, RGB, " \
"BGR, BGR10A2_LE, RGB10A2_LE, Y42B, I422_10LE, I422_12LE, RGBP, BGRP, GBR, " \
"GBRA, GBR_10LE, GBR_12LE, GBR_16LE }"
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY, GST_CUDA_CONVET_FORMATS))
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY, GST_CUDA_CONVET_FORMATS))
);
#define DEFAULT_ADD_BORDERS TRUE
struct _GstCudaBaseConvert
{
GstCudaBaseTransform parent;
GstCudaConverter *converter;
GstCudaStream *other_stream;
gint borders_h;
gint borders_w;
gboolean add_borders;
/* orientation */
/* method configured via property */
GstVideoOrientationMethod method;
/* method parsed from tag */
GstVideoOrientationMethod tag_method;
/* method currently selected based on "method" and "tag_method" */
GstVideoOrientationMethod selected_method;
/* method previously selected and used for negotiation */
GstVideoOrientationMethod active_method;
GMutex lock;
};
static void gst_cuda_base_convert_dispose (GObject * object);
static void gst_cuda_base_convert_finalize (GObject * object);
static GstCaps *gst_cuda_base_convert_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_cuda_base_convert_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
static gboolean
gst_cuda_base_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query);
static gboolean gst_cuda_base_convert_decide_allocation (GstBaseTransform *
trans, GstQuery * query);
static gboolean gst_cuda_base_convert_filter_meta (GstBaseTransform * trans,
GstQuery * query, GType api, const GstStructure * params);
static GstFlowReturn gst_cuda_base_convert_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_cuda_base_convert_set_info (GstCudaBaseTransform * btrans,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info);
/**
* GstCudaBaseConvert:
*
* A baseclass implementation for cuda convert elements
*
* Since: 1.22
*/
#define gst_cuda_base_convert_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstCudaBaseConvert,
gst_cuda_base_convert, GST_TYPE_CUDA_BASE_TRANSFORM,
GST_DEBUG_CATEGORY_INIT (gst_cuda_base_convert_debug,
"cudaconvertscale", 0, "CUDA Base Filter"));
static void
gst_cuda_base_convert_class_init (GstCudaBaseConvertClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstCudaBaseTransformClass *btrans_class =
GST_CUDA_BASE_TRANSFORM_CLASS (klass);
gobject_class->dispose = gst_cuda_base_convert_dispose;
gobject_class->finalize = gst_cuda_base_convert_finalize;
gst_element_class_add_static_pad_template (element_class, &sink_template);
gst_element_class_add_static_pad_template (element_class, &src_template);
trans_class->passthrough_on_same_caps = TRUE;
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_cuda_base_convert_transform_caps);
trans_class->fixate_caps =
GST_DEBUG_FUNCPTR (gst_cuda_base_convert_fixate_caps);
trans_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_cuda_base_convert_propose_allocation);
trans_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_cuda_base_convert_decide_allocation);
trans_class->filter_meta =
GST_DEBUG_FUNCPTR (gst_cuda_base_convert_filter_meta);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_cuda_base_convert_transform);
btrans_class->set_info = GST_DEBUG_FUNCPTR (gst_cuda_base_convert_set_info);
gst_type_mark_as_plugin_api (GST_TYPE_CUDA_BASE_CONVERT, 0);
}
static void
gst_cuda_base_convert_init (GstCudaBaseConvert * self)
{
self->add_borders = DEFAULT_ADD_BORDERS;
g_mutex_init (&self->lock);
}
static void
gst_cuda_base_convert_dispose (GObject * object)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (object);
gst_clear_cuda_stream (&self->other_stream);
gst_clear_object (&self->converter);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_cuda_base_convert_finalize (GObject * object)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (object);
g_mutex_clear (&self->lock);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstCaps *
gst_cuda_base_convert_caps_remove_format_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site",
NULL);
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static GstCaps *
gst_cuda_base_convert_caps_rangify_size_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
gst_structure_set (st, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (st, "pixel-aspect-ratio")) {
gst_structure_set (st, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static GstCaps *
gst_cuda_base_convert_caps_remove_format_and_rangify_size_info (GstCaps * caps)
{
GstStructure *st;
GstCapsFeatures *f;
gint i, n;
GstCaps *res;
GstCapsFeatures *feature =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY);
res = gst_caps_new_empty ();
n = gst_caps_get_size (caps);
for (i = 0; i < n; i++) {
st = gst_caps_get_structure (caps, i);
f = gst_caps_get_features (caps, i);
/* If this is already expressed by the existing caps
* skip this structure */
if (i > 0 && gst_caps_is_subset_structure_full (res, st, f))
continue;
st = gst_structure_copy (st);
/* Only remove format info for the cases when we can actually convert */
if (!gst_caps_features_is_any (f)
&& gst_caps_features_is_equal (f, feature)) {
gst_structure_set (st, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
/* if pixel aspect ratio, make a range of it */
if (gst_structure_has_field (st, "pixel-aspect-ratio")) {
gst_structure_set (st, "pixel-aspect-ratio",
GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
}
gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site",
NULL);
}
gst_caps_append_structure_full (res, st, gst_caps_features_copy (f));
}
gst_caps_features_free (feature);
return res;
}
static GstCaps *
gst_cuda_base_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_cuda_base_convert_caps_remove_format_and_rangify_size_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
/*
* This is an incomplete matrix of in formats and a score for the prefered output
* format.
*
* out: RGB24 RGB16 ARGB AYUV YUV444 YUV422 YUV420 YUV411 YUV410 PAL GRAY
* in
* RGB24 0 2 1 2 2 3 4 5 6 7 8
* RGB16 1 0 1 2 2 3 4 5 6 7 8
* ARGB 2 3 0 1 4 5 6 7 8 9 10
* AYUV 3 4 1 0 2 5 6 7 8 9 10
* YUV444 2 4 3 1 0 5 6 7 8 9 10
* YUV422 3 5 4 2 1 0 6 7 8 9 10
* YUV420 4 6 5 3 2 1 0 7 8 9 10
* YUV411 4 6 5 3 2 1 7 0 8 9 10
* YUV410 6 8 7 5 4 3 2 1 0 9 10
* PAL 1 3 2 6 4 6 7 8 9 0 10
* GRAY 1 4 3 2 1 5 6 7 8 9 0
*
* PAL or GRAY are never prefered, if we can we would convert to PAL instead
* of GRAY, though
* less subsampling is prefered and if any, preferably horizontal
* We would like to keep the alpha, even if we would need to to colorspace conversion
* or lose depth.
*/
#define SCORE_FORMAT_CHANGE 1
#define SCORE_DEPTH_CHANGE 1
#define SCORE_ALPHA_CHANGE 1
#define SCORE_CHROMA_W_CHANGE 1
#define SCORE_CHROMA_H_CHANGE 1
#define SCORE_PALETTE_CHANGE 1
#define SCORE_COLORSPACE_LOSS 2 /* RGB <-> YUV */
#define SCORE_DEPTH_LOSS 4 /* change bit depth */
#define SCORE_ALPHA_LOSS 8 /* lose the alpha channel */
#define SCORE_CHROMA_W_LOSS 16 /* vertical subsample */
#define SCORE_CHROMA_H_LOSS 32 /* horizontal subsample */
#define SCORE_PALETTE_LOSS 64 /* convert to palette format */
#define SCORE_COLOR_LOSS 128 /* convert to GRAY */
#define COLORSPACE_MASK (GST_VIDEO_FORMAT_FLAG_YUV | \
GST_VIDEO_FORMAT_FLAG_RGB | GST_VIDEO_FORMAT_FLAG_GRAY)
#define ALPHA_MASK (GST_VIDEO_FORMAT_FLAG_ALPHA)
#define PALETTE_MASK (GST_VIDEO_FORMAT_FLAG_PALETTE)
/* calculate how much loss a conversion would be */
static void
score_value (GstBaseTransform * base, const GstVideoFormatInfo * in_info,
const GValue * val, gint * min_loss, const GstVideoFormatInfo ** out_info)
{
const gchar *fname;
const GstVideoFormatInfo *t_info;
guint in_flags, t_flags;
gint loss;
fname = g_value_get_string (val);
t_info = gst_video_format_get_info (gst_video_format_from_string (fname));
if (!t_info || t_info->format == GST_VIDEO_FORMAT_UNKNOWN)
return;
/* accept input format immediately without loss */
if (in_info == t_info) {
*min_loss = 0;
*out_info = t_info;
return;
}
loss = SCORE_FORMAT_CHANGE;
in_flags = GST_VIDEO_FORMAT_INFO_FLAGS (in_info);
in_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
in_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
t_flags = GST_VIDEO_FORMAT_INFO_FLAGS (t_info);
t_flags &= ~GST_VIDEO_FORMAT_FLAG_LE;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_COMPLEX;
t_flags &= ~GST_VIDEO_FORMAT_FLAG_UNPACK;
if ((t_flags & PALETTE_MASK) != (in_flags & PALETTE_MASK)) {
loss += SCORE_PALETTE_CHANGE;
if (t_flags & PALETTE_MASK)
loss += SCORE_PALETTE_LOSS;
}
if ((t_flags & COLORSPACE_MASK) != (in_flags & COLORSPACE_MASK)) {
loss += SCORE_COLORSPACE_LOSS;
if (t_flags & GST_VIDEO_FORMAT_FLAG_GRAY)
loss += SCORE_COLOR_LOSS;
}
if ((t_flags & ALPHA_MASK) != (in_flags & ALPHA_MASK)) {
loss += SCORE_ALPHA_CHANGE;
if (in_flags & ALPHA_MASK)
loss += SCORE_ALPHA_LOSS;
}
if ((in_info->h_sub[1]) != (t_info->h_sub[1])) {
loss += SCORE_CHROMA_H_CHANGE;
if ((in_info->h_sub[1]) < (t_info->h_sub[1]))
loss += SCORE_CHROMA_H_LOSS;
}
if ((in_info->w_sub[1]) != (t_info->w_sub[1])) {
loss += SCORE_CHROMA_W_CHANGE;
if ((in_info->w_sub[1]) < (t_info->w_sub[1]))
loss += SCORE_CHROMA_W_LOSS;
}
if ((in_info->bits) != (t_info->bits)) {
loss += SCORE_DEPTH_CHANGE;
if ((in_info->bits) > (t_info->bits))
loss += SCORE_DEPTH_LOSS + (in_info->bits - t_info->bits);
}
GST_DEBUG_OBJECT (base, "score %s -> %s = %d",
GST_VIDEO_FORMAT_INFO_NAME (in_info),
GST_VIDEO_FORMAT_INFO_NAME (t_info), loss);
if (loss < *min_loss) {
GST_DEBUG_OBJECT (base, "found new best %d", loss);
*out_info = t_info;
*min_loss = loss;
}
}
static void
gst_cuda_base_convert_fixate_format (GstBaseTransform * trans,
GstCaps * caps, GstCaps * result)
{
GstStructure *ins, *outs;
const gchar *in_format;
const GstVideoFormatInfo *in_info, *out_info = NULL;
gint min_loss = G_MAXINT;
guint i, capslen;
ins = gst_caps_get_structure (caps, 0);
in_format = gst_structure_get_string (ins, "format");
if (!in_format) {
return;
}
GST_DEBUG_OBJECT (trans, "source format %s", in_format);
in_info =
gst_video_format_get_info (gst_video_format_from_string (in_format));
if (!in_info)
return;
outs = gst_caps_get_structure (result, 0);
capslen = gst_caps_get_size (result);
GST_DEBUG ("iterate %d structures", capslen);
for (i = 0; i < capslen; i++) {
GstStructure *tests;
const GValue *format;
tests = gst_caps_get_structure (result, i);
format = gst_structure_get_value (tests, "format");
/* should not happen */
if (format == NULL)
continue;
if (GST_VALUE_HOLDS_LIST (format)) {
gint j, len;
len = gst_value_list_get_size (format);
GST_DEBUG_OBJECT (trans, "have %d formats", len);
for (j = 0; j < len; j++) {
const GValue *val;
val = gst_value_list_get_value (format, j);
if (G_VALUE_HOLDS_STRING (val)) {
score_value (trans, in_info, val, &min_loss, &out_info);
if (min_loss == 0)
break;
}
}
} else if (G_VALUE_HOLDS_STRING (format)) {
score_value (trans, in_info, format, &min_loss, &out_info);
}
}
if (out_info)
gst_structure_set (outs, "format", G_TYPE_STRING,
GST_VIDEO_FORMAT_INFO_NAME (out_info), NULL);
}
static gboolean
subsampling_unchanged (GstVideoInfo * in_info, GstVideoInfo * out_info)
{
guint i;
const GstVideoFormatInfo *in_format, *out_format;
if (GST_VIDEO_INFO_N_COMPONENTS (in_info) !=
GST_VIDEO_INFO_N_COMPONENTS (out_info))
return FALSE;
in_format = in_info->finfo;
out_format = out_info->finfo;
for (i = 0; i < GST_VIDEO_INFO_N_COMPONENTS (in_info); i++) {
if (GST_VIDEO_FORMAT_INFO_W_SUB (in_format,
i) != GST_VIDEO_FORMAT_INFO_W_SUB (out_format, i))
return FALSE;
if (GST_VIDEO_FORMAT_INFO_H_SUB (in_format,
i) != GST_VIDEO_FORMAT_INFO_H_SUB (out_format, i))
return FALSE;
}
return TRUE;
}
static void
transfer_colorimetry_from_input (GstBaseTransform * trans, GstCaps * in_caps,
GstCaps * out_caps)
{
GstStructure *out_caps_s = gst_caps_get_structure (out_caps, 0);
GstStructure *in_caps_s = gst_caps_get_structure (in_caps, 0);
gboolean have_colorimetry =
gst_structure_has_field (out_caps_s, "colorimetry");
gboolean have_chroma_site =
gst_structure_has_field (out_caps_s, "chroma-site");
/* If the output already has colorimetry and chroma-site, stop,
* otherwise try and transfer what we can from the input caps */
if (have_colorimetry && have_chroma_site)
return;
{
GstVideoInfo in_info, out_info;
const GValue *in_colorimetry =
gst_structure_get_value (in_caps_s, "colorimetry");
if (!gst_video_info_from_caps (&in_info, in_caps)) {
GST_WARNING_OBJECT (trans,
"Failed to convert sink pad caps to video info");
return;
}
if (!gst_video_info_from_caps (&out_info, out_caps)) {
GST_WARNING_OBJECT (trans,
"Failed to convert src pad caps to video info");
return;
}
if (!have_colorimetry && in_colorimetry != NULL) {
if ((GST_VIDEO_INFO_IS_YUV (&out_info)
&& GST_VIDEO_INFO_IS_YUV (&in_info))
|| (GST_VIDEO_INFO_IS_RGB (&out_info)
&& GST_VIDEO_INFO_IS_RGB (&in_info))
|| (GST_VIDEO_INFO_IS_GRAY (&out_info)
&& GST_VIDEO_INFO_IS_GRAY (&in_info))) {
/* Can transfer the colorimetry intact from the input if it has it */
gst_structure_set_value (out_caps_s, "colorimetry", in_colorimetry);
} else {
gchar *colorimetry_str;
/* Changing between YUV/RGB - forward primaries and transfer function, but use
* default range and matrix.
* the primaries is used for conversion between RGB and XYZ (CIE 1931 coordinate).
* the transfer function could be another reference (e.g., HDR)
*/
out_info.colorimetry.primaries = in_info.colorimetry.primaries;
out_info.colorimetry.transfer = in_info.colorimetry.transfer;
colorimetry_str =
gst_video_colorimetry_to_string (&out_info.colorimetry);
gst_caps_set_simple (out_caps, "colorimetry", G_TYPE_STRING,
colorimetry_str, NULL);
g_free (colorimetry_str);
}
}
/* Only YUV output needs chroma-site. If the input was also YUV and had the same chroma
* subsampling, transfer the siting. If the sub-sampling is changing, then the planes get
* scaled anyway so there's no real reason to prefer the input siting. */
if (!have_chroma_site && GST_VIDEO_INFO_IS_YUV (&out_info)) {
if (GST_VIDEO_INFO_IS_YUV (&in_info)) {
const GValue *in_chroma_site =
gst_structure_get_value (in_caps_s, "chroma-site");
if (in_chroma_site != NULL
&& subsampling_unchanged (&in_info, &out_info))
gst_structure_set_value (out_caps_s, "chroma-site", in_chroma_site);
}
}
}
}
static GstCaps *
gst_cuda_base_convert_get_fixed_format (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *result;
result = gst_caps_intersect (othercaps, caps);
if (gst_caps_is_empty (result)) {
gst_caps_unref (result);
result = gst_caps_copy (othercaps);
}
gst_cuda_base_convert_fixate_format (trans, caps, result);
/* fixate remaining fields */
result = gst_caps_fixate (result);
if (direction == GST_PAD_SINK) {
if (gst_caps_is_subset (caps, result)) {
gst_caps_replace (&result, caps);
} else {
/* Try and preserve input colorimetry / chroma information */
transfer_colorimetry_from_input (trans, caps, result);
}
}
return result;
}
static GstCaps *
gst_cuda_base_convert_fixate_size (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (base);
GstStructure *ins, *outs;
const GValue *from_par, *to_par;
GValue fpar = G_VALUE_INIT, tpar = G_VALUE_INIT;
gboolean rotate = FALSE;
othercaps = gst_caps_truncate (othercaps);
othercaps = gst_caps_make_writable (othercaps);
ins = gst_caps_get_structure (caps, 0);
outs = gst_caps_get_structure (othercaps, 0);
from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
g_mutex_lock (&self->lock);
switch (self->selected_method) {
case GST_VIDEO_ORIENTATION_90R:
case GST_VIDEO_ORIENTATION_90L:
case GST_VIDEO_ORIENTATION_UL_LR:
case GST_VIDEO_ORIENTATION_UR_LL:
rotate = TRUE;
break;
default:
rotate = FALSE;
break;
}
if (direction == GST_PAD_SINK) {
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
}
if (!to_par) {
g_value_init (&tpar, GST_TYPE_FRACTION_RANGE);
gst_value_set_fraction_range_full (&tpar, 1, G_MAXINT, G_MAXINT, 1);
to_par = &tpar;
}
} else {
gint from_par_n, from_par_d;
if (!from_par) {
g_value_init (&fpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&fpar, 1, 1);
from_par = &fpar;
from_par_n = from_par_d = 1;
} else {
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
}
if (!to_par) {
gint to_par_n, to_par_d;
if (rotate) {
to_par_n = from_par_n;
to_par_d = from_par_d;
} else {
to_par_n = from_par_n;
to_par_d = from_par_d;
}
g_value_init (&tpar, GST_TYPE_FRACTION);
gst_value_set_fraction (&tpar, to_par_n, to_par_d);
to_par = &tpar;
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
to_par_n, to_par_d, NULL);
}
}
/* we have both PAR but they might not be fixated */
{
gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
gint w = 0, h = 0;
gint from_dar_n, from_dar_d;
gint num, den;
/* from_par should be fixed */
g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
gst_structure_get_int (ins, "width", &from_w);
gst_structure_get_int (ins, "height", &from_h);
gst_structure_get_int (outs, "width", &w);
gst_structure_get_int (outs, "height", &h);
/* swap dimensions when it's rotated */
if (rotate) {
gint _tmp = from_w;
from_w = from_h;
from_h = _tmp;
_tmp = from_par_n;
from_par_n = from_par_d;
from_par_d = _tmp;
}
/* if both width and height are already fixed, we can't do anything
* about it anymore */
if (w && h) {
guint n, d;
GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
w, h);
if (!gst_value_is_fixed (to_par)) {
if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h,
from_par_n, from_par_d, w, h)) {
GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", n, d);
if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
gst_structure_fixate_field_nearest_fraction (outs,
"pixel-aspect-ratio", n, d);
else if (n != d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
n, d, NULL);
}
}
goto done;
}
/* Calculate input DAR */
if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
&from_dar_n, &from_dar_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
GST_DEBUG_OBJECT (base, "Input DAR is %d/%d", from_dar_n, from_dar_d);
/* If either width or height are fixed there's not much we
* can do either except choosing a height or width and PAR
* that matches the DAR as good as possible
*/
if (h) {
GstStructure *tmp;
gint set_w, set_par_n, set_par_d;
GST_DEBUG_OBJECT (base, "height is fixed (%d)", h);
/* If the PAR is fixed too, there's not much to do
* except choosing the width that is nearest to the
* width with the same DAR */
if (gst_value_is_fixed (to_par)) {
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
goto done;
}
/* The PAR is not fixed and it's quite likely that we can set
* an arbitrary PAR. */
/* Check if we can keep the input width */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* Might have failed but try to keep the DAR nonetheless by
* adjusting the PAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
/* Check if the adjusted PAR is accepted */
if (set_par_n == to_par_n && set_par_d == to_par_d) {
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "width", G_TYPE_INT, set_w,
"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
NULL);
goto done;
}
/* Otherwise scale the width to the new PAR and check if the
* adjusted with is accepted. If all that fails we can't keep
* the DAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (h, num, den);
gst_structure_fixate_field_nearest_int (outs, "width", w);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
} else if (w) {
GstStructure *tmp;
gint set_h, set_par_n, set_par_d;
GST_DEBUG_OBJECT (base, "width is fixed (%d)", w);
/* If the PAR is fixed too, there's not much to do
* except choosing the height that is nearest to the
* height with the same DAR */
if (gst_value_is_fixed (to_par)) {
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
to_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int_round (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
goto done;
}
/* The PAR is not fixed and it's quite likely that we can set
* an arbitrary PAR. */
/* Check if we can keep the input height */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* Might have failed but try to keep the DAR nonetheless by
* adjusting the PAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
/* Check if the adjusted PAR is accepted */
if (set_par_n == to_par_n && set_par_d == to_par_d) {
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "height", G_TYPE_INT, set_h,
"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
NULL);
goto done;
}
/* Otherwise scale the height to the new PAR and check if the
* adjusted with is accepted. If all that fails we can't keep
* the DAR */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scale sized - integer overflow"));
goto done;
}
h = (guint) gst_util_uint64_scale_int_round (w, den, num);
gst_structure_fixate_field_nearest_int (outs, "height", h);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
} else if (gst_value_is_fixed (to_par)) {
GstStructure *tmp;
gint set_h, set_w, f_h, f_w;
to_par_n = gst_value_get_fraction_numerator (to_par);
to_par_d = gst_value_get_fraction_denominator (to_par);
/* Calculate scale factor for the PAR change */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
to_par_d, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
/* Try to keep the input height (because of interlacing) */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
w = (guint) gst_util_uint64_scale_int_round (set_h, num, den);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &set_w);
gst_structure_free (tmp);
/* We kept the DAR and the height is nearest to the original height */
if (set_w == w) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
f_h = set_h;
f_w = set_w;
/* If the former failed, try to keep the input width at least */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
/* This might have failed but try to scale the width
* to keep the DAR nonetheless */
h = (guint) gst_util_uint64_scale_int_round (set_w, den, num);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_free (tmp);
/* We kept the DAR and the width is nearest to the original width */
if (set_h == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
goto done;
}
/* If all this failed, keep the dimensions with the DAR that was closest
* to the correct DAR. This changes the DAR but there's not much else to
* do here.
*/
if (set_w * ABS (set_h - h) < ABS (f_w - w) * f_h) {
f_h = set_h;
f_w = set_w;
}
gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
f_h, NULL);
goto done;
} else {
GstStructure *tmp;
gint set_h, set_w, set_par_n, set_par_d, tmp2;
/* width, height and PAR are not fixed but passthrough is not possible */
/* First try to keep the height and width as good as possible
* and scale PAR */
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
gst_structure_get_int (tmp, "height", &set_h);
gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
gst_structure_get_int (tmp, "width", &set_w);
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
&to_par_n, &to_par_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
gst_structure_free (tmp);
goto done;
}
if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
to_par_n, to_par_d);
gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
&set_par_d);
gst_structure_free (tmp);
if (set_par_n == to_par_n && set_par_d == to_par_d) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* Otherwise try to scale width to keep the DAR with the set
* PAR and height */
if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
set_par_n, &num, &den)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
w = (guint) gst_util_uint64_scale_int_round (set_h, num, den);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "width", w);
gst_structure_get_int (tmp, "width", &tmp2);
gst_structure_free (tmp);
if (tmp2 == w) {
gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* ... or try the same with the height */
h = (guint) gst_util_uint64_scale_int_round (set_w, den, num);
tmp = gst_structure_copy (outs);
gst_structure_fixate_field_nearest_int (tmp, "height", h);
gst_structure_get_int (tmp, "height", &tmp2);
gst_structure_free (tmp);
if (tmp2 == h) {
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, tmp2, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
goto done;
}
/* If all fails we can't keep the DAR and take the nearest values
* for everything from the first try */
gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
G_TYPE_INT, set_h, NULL);
if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
set_par_n != set_par_d)
gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
set_par_n, set_par_d, NULL);
}
}
done:
if (from_par == &fpar)
g_value_unset (&fpar);
if (to_par == &tpar)
g_value_unset (&tpar);
g_mutex_unlock (&self->lock);
return othercaps;
}
static GstCaps *
gst_cuda_base_convert_fixate_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *format = NULL;
GST_DEBUG_OBJECT (trans,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
format = gst_cuda_base_convert_get_fixed_format (trans, direction, caps,
othercaps);
if (gst_caps_is_empty (format)) {
GST_ERROR_OBJECT (trans, "Could not convert formats");
return format;
}
/* convert mode is "all" or "size" here */
othercaps =
gst_cuda_base_convert_fixate_size (trans, direction, caps, othercaps);
if (gst_caps_get_size (othercaps) == 1) {
guint i;
const gchar *format_fields[] = { "format", "colorimetry", "chroma-site" };
GstStructure *format_struct = gst_caps_get_structure (format, 0);
GstStructure *fixated_struct;
othercaps = gst_caps_make_writable (othercaps);
fixated_struct = gst_caps_get_structure (othercaps, 0);
for (i = 0; i < G_N_ELEMENTS (format_fields); i++) {
if (gst_structure_has_field (format_struct, format_fields[i])) {
gst_structure_set (fixated_struct, format_fields[i], G_TYPE_STRING,
gst_structure_get_string (format_struct, format_fields[i]), NULL);
} else {
gst_structure_remove_field (fixated_struct, format_fields[i]);
}
}
}
gst_caps_unref (format);
GST_DEBUG_OBJECT (trans, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
static gboolean
gst_cuda_base_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (trans);
GstCudaBaseTransform *ctrans = GST_CUDA_BASE_TRANSFORM (trans);
GstVideoInfo info;
GstBufferPool *pool;
GstCaps *caps;
guint size;
if (!GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
decide_query, query))
return FALSE;
/* passthrough, we're done */
if (decide_query == NULL)
return TRUE;
gst_query_parse_allocation (query, &caps, NULL);
if (caps == NULL)
return FALSE;
if (!gst_video_info_from_caps (&info, caps))
return FALSE;
if (gst_query_get_n_allocation_pools (query) == 0) {
GstStructure *config;
pool = gst_cuda_buffer_pool_new (ctrans->context);
config = gst_buffer_pool_get_config (pool);
/* Forward downstream CUDA stream to upstream */
if (self->other_stream) {
GST_DEBUG_OBJECT (self, "Have downstream CUDA stream, forwarding");
gst_buffer_pool_config_set_cuda_stream (config, self->other_stream);
} else if (ctrans->stream) {
GST_DEBUG_OBJECT (self, "Set our stream to proposing buffer pool");
gst_buffer_pool_config_set_cuda_stream (config, ctrans->stream);
}
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
size = GST_VIDEO_INFO_SIZE (&info);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR_OBJECT (ctrans, "failed to set config");
gst_object_unref (pool);
return FALSE;
}
/* Get updated size by cuda buffer pool */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, NULL, &size, NULL, NULL);
gst_structure_free (config);
gst_query_add_allocation_pool (query, pool, size, 0, 0);
gst_object_unref (pool);
}
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return TRUE;
}
static gboolean
gst_cuda_base_convert_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (trans);
GstCudaBaseTransform *ctrans = GST_CUDA_BASE_TRANSFORM (trans);
GstCaps *outcaps = NULL;
GstBufferPool *pool = NULL;
guint size, min, max;
GstStructure *config;
gboolean update_pool = FALSE;
gst_query_parse_allocation (query, &outcaps, NULL);
if (!outcaps)
return FALSE;
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (pool) {
if (!GST_IS_CUDA_BUFFER_POOL (pool)) {
gst_clear_object (&pool);
} else {
GstCudaBufferPool *cpool = GST_CUDA_BUFFER_POOL (pool);
if (cpool->context != ctrans->context) {
gst_clear_object (&pool);
}
}
}
update_pool = TRUE;
} else {
GstVideoInfo vinfo;
gst_video_info_from_caps (&vinfo, outcaps);
size = GST_VIDEO_INFO_SIZE (&vinfo);
min = max = 0;
}
if (!pool) {
GST_DEBUG_OBJECT (ctrans, "create our pool");
pool = gst_cuda_buffer_pool_new (ctrans->context);
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_clear_cuda_stream (&self->other_stream);
self->other_stream = gst_buffer_pool_config_get_cuda_stream (config);
if (self->other_stream) {
GST_DEBUG_OBJECT (self, "Downstream provided CUDA stream");
} else if (ctrans->stream) {
GST_DEBUG_OBJECT (self, "Set our stream to decided buffer pool");
gst_buffer_pool_config_set_cuda_stream (config, ctrans->stream);
}
gst_buffer_pool_set_config (pool, config);
/* Get updated size by cuda buffer pool */
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, NULL, &size, NULL, NULL);
gst_structure_free (config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query);
}
static gboolean
needs_color_convert (const GstVideoInfo * in_info,
const GstVideoInfo * out_info)
{
const GstVideoColorimetry *in_cinfo = &in_info->colorimetry;
const GstVideoColorimetry *out_cinfo = &out_info->colorimetry;
if (in_cinfo->range != out_cinfo->range ||
in_cinfo->matrix != out_cinfo->matrix) {
return TRUE;
}
if (!gst_video_color_primaries_is_equivalent (in_cinfo->primaries,
out_cinfo->primaries)) {
return TRUE;
}
if (!gst_video_transfer_function_is_equivalent (in_cinfo->transfer,
GST_VIDEO_INFO_COMP_DEPTH (in_info, 0), out_cinfo->transfer,
GST_VIDEO_INFO_COMP_DEPTH (out_info, 0))) {
return TRUE;
}
return FALSE;
}
static gboolean
gst_cuda_base_convert_set_info (GstCudaBaseTransform * btrans,
GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
GstVideoInfo * out_info)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (btrans);
gint from_dar_n, from_dar_d, to_dar_n, to_dar_d;
gboolean need_flip = FALSE;
gint in_width, in_height, in_par_n, in_par_d;
GstVideoOrientationMethod active_method;
gst_clear_object (&self->converter);
g_mutex_lock (&self->lock);
active_method = self->active_method = self->selected_method;
g_mutex_unlock (&self->lock);
if (active_method != GST_VIDEO_ORIENTATION_IDENTITY)
need_flip = TRUE;
switch (active_method) {
case GST_VIDEO_ORIENTATION_90R:
case GST_VIDEO_ORIENTATION_90L:
case GST_VIDEO_ORIENTATION_UL_LR:
case GST_VIDEO_ORIENTATION_UR_LL:
in_width = in_info->height;
in_height = in_info->width;
in_par_n = in_info->par_d;
in_par_d = in_info->par_n;
break;
default:
in_width = in_info->width;
in_height = in_info->height;
in_par_n = in_info->par_n;
in_par_d = in_info->par_d;
break;
}
if (!gst_util_fraction_multiply (in_width,
in_height, in_par_n, in_par_d, &from_dar_n, &from_dar_d)) {
from_dar_n = from_dar_d = -1;
}
if (!gst_util_fraction_multiply (out_info->width,
out_info->height, out_info->par_n, out_info->par_d, &to_dar_n,
&to_dar_d)) {
to_dar_n = to_dar_d = -1;
}
self->borders_w = self->borders_h = 0;
if (to_dar_n != from_dar_n || to_dar_d != from_dar_d) {
if (self->add_borders) {
gint n, d, to_h, to_w;
if (from_dar_n != -1 && from_dar_d != -1
&& gst_util_fraction_multiply (from_dar_n, from_dar_d,
out_info->par_d, out_info->par_n, &n, &d)) {
to_h = gst_util_uint64_scale_int (out_info->width, d, n);
if (to_h <= out_info->height) {
self->borders_h = out_info->height - to_h;
self->borders_w = 0;
} else {
to_w = gst_util_uint64_scale_int (out_info->height, n, d);
g_assert (to_w <= out_info->width);
self->borders_h = 0;
self->borders_w = out_info->width - to_w;
}
} else {
GST_WARNING_OBJECT (self, "Can't calculate borders");
}
} else {
GST_WARNING_OBJECT (self, "Can't keep DAR!");
}
}
/* if present, these must match */
if (in_info->interlace_mode != out_info->interlace_mode) {
GST_ERROR_OBJECT (self, "input and output formats do not match");
return FALSE;
}
if (in_width == out_info->width && in_height == out_info->height
&& in_info->finfo == out_info->finfo && self->borders_w == 0 &&
self->borders_h == 0 && !need_flip &&
!needs_color_convert (in_info, out_info)) {
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (self), TRUE);
} else {
GstStructure *config;
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (self), FALSE);
config = gst_structure_new_empty ("GstCudaConverter");
gst_structure_set (config,
GST_CUDA_CONVERTER_OPT_DEST_X, G_TYPE_INT, self->borders_w / 2,
GST_CUDA_CONVERTER_OPT_DEST_Y, G_TYPE_INT, self->borders_h / 2,
GST_CUDA_CONVERTER_OPT_DEST_WIDTH,
G_TYPE_INT, out_info->width - self->borders_w,
GST_CUDA_CONVERTER_OPT_DEST_HEIGHT,
G_TYPE_INT, out_info->height - self->borders_h,
GST_CUDA_CONVERTER_OPT_ORIENTATION_METHOD,
GST_TYPE_VIDEO_ORIENTATION_METHOD, active_method, NULL);
self->converter = gst_cuda_converter_new (in_info,
out_info, btrans->context, config);
if (!self->converter) {
GST_ERROR_OBJECT (self, "Couldn't create converter");
return FALSE;
}
}
GST_DEBUG_OBJECT (self, "%s from=%dx%d (par=%d/%d dar=%d/%d), size %"
G_GSIZE_FORMAT " -> %s to=%dx%d (par=%d/%d dar=%d/%d borders=%d:%d), "
"size %" G_GSIZE_FORMAT,
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (in_info)),
in_info->width, in_info->height, in_info->par_n, in_info->par_d,
from_dar_n, from_dar_d, in_info->size,
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (out_info)),
out_info->width,
out_info->height, out_info->par_n, out_info->par_d, to_dar_n, to_dar_d,
self->borders_w, self->borders_h, out_info->size);
return TRUE;
}
static gboolean
gst_cuda_base_convert_filter_meta (GstBaseTransform * trans, GstQuery * query,
GType api, const GstStructure * params)
{
/* This element cannot passthrough the crop meta, because it would convert the
* wrong sub-region of the image, and worst, our output image may not be large
* enough for the crop to be applied later */
if (api == GST_VIDEO_CROP_META_API_TYPE)
return FALSE;
/* propose all other metadata upstream */
return TRUE;
}
static GstFlowReturn
gst_cuda_base_convert_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstCudaBaseConvert *self = GST_CUDA_BASE_CONVERT (trans);
GstCudaBaseTransform *btrans = GST_CUDA_BASE_TRANSFORM (trans);
GstVideoFrame in_frame, out_frame;
GstFlowReturn ret = GST_FLOW_OK;
GstMemory *mem;
GstCudaMemory *in_cmem, *out_cmem;
GstCudaStream *in_stream, *out_stream;
GstCudaStream *selected_stream = NULL;
gboolean sync_done = FALSE;
if (gst_buffer_n_memory (inbuf) != 1) {
GST_ERROR_OBJECT (self, "Invalid input buffer");
return GST_FLOW_ERROR;
}
mem = gst_buffer_peek_memory (inbuf, 0);
if (!gst_is_cuda_memory (mem)) {
GST_ERROR_OBJECT (self, "Input buffer is not CUDA");
return GST_FLOW_ERROR;
}
in_cmem = GST_CUDA_MEMORY_CAST (mem);
in_stream = gst_cuda_memory_get_stream (in_cmem);
if (gst_buffer_n_memory (outbuf) != 1) {
GST_ERROR_OBJECT (self, "Invalid output buffer");
return GST_FLOW_ERROR;
}
mem = gst_buffer_peek_memory (outbuf, 0);
if (!gst_is_cuda_memory (mem)) {
GST_ERROR_OBJECT (self, "Input buffer is not CUDA");
return GST_FLOW_ERROR;
}
out_cmem = GST_CUDA_MEMORY_CAST (mem);
out_stream = gst_cuda_memory_get_stream (out_cmem);
if (!gst_video_frame_map (&in_frame, &btrans->in_info, inbuf,
GST_MAP_READ | GST_MAP_CUDA)) {
GST_ERROR_OBJECT (self, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
if (!gst_video_frame_map (&out_frame, &btrans->out_info, outbuf,
GST_MAP_WRITE | GST_MAP_CUDA)) {
gst_video_frame_unmap (&in_frame);
GST_ERROR_OBJECT (self, "Failed to map output buffer");
return GST_FLOW_ERROR;
}
/* If downstream does not aware of CUDA stream (i.e., using default stream) */
if (!out_stream) {
if (in_stream) {
GST_TRACE_OBJECT (self, "Use upstram CUDA stream");
selected_stream = in_stream;
} else if (btrans->stream) {
GST_TRACE_OBJECT (self, "Use our CUDA stream");
selected_stream = btrans->stream;
}
} else {
selected_stream = out_stream;
if (in_stream) {
if (in_stream == out_stream) {
GST_TRACE_OBJECT (self, "Same stream");
} else {
GST_TRACE_OBJECT (self, "Different CUDA stream");
gst_cuda_memory_sync (in_cmem);
}
}
}
if (!gst_cuda_converter_convert_frame (self->converter, &in_frame, &out_frame,
gst_cuda_stream_get_handle (selected_stream), &sync_done)) {
GST_ERROR_OBJECT (self, "Failed to convert frame");
ret = GST_FLOW_ERROR;
}
if (sync_done) {
GST_TRACE_OBJECT (self, "Sync done by converter");
GST_MEMORY_FLAG_UNSET (out_cmem, GST_CUDA_MEMORY_TRANSFER_NEED_SYNC);
} else if (selected_stream != out_stream) {
GST_MEMORY_FLAG_UNSET (out_cmem, GST_CUDA_MEMORY_TRANSFER_NEED_SYNC);
GST_TRACE_OBJECT (self, "Waiting for convert sync");
gst_cuda_context_push (btrans->context);
CuStreamSynchronize (gst_cuda_stream_get_handle (selected_stream));
gst_cuda_context_pop (NULL);
}
gst_video_frame_unmap (&out_frame);
gst_video_frame_unmap (&in_frame);
return ret;
}
static void
gst_cuda_base_convert_set_add_border (GstCudaBaseConvert * self,
gboolean add_border)
{
gboolean prev = self->add_borders;
self->add_borders = add_border;
if (prev != self->add_borders)
gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM_CAST (self));
}
static void
gst_cuda_base_convert_set_orientation (GstCudaBaseConvert * self,
GstVideoOrientationMethod method, gboolean from_tag)
{
if (method == GST_VIDEO_ORIENTATION_CUSTOM) {
GST_WARNING_OBJECT (self, "Unsupported custom orientation");
return;
}
g_mutex_lock (&self->lock);
if (from_tag)
self->tag_method = method;
else
self->method = method;
if (self->method == GST_VIDEO_ORIENTATION_AUTO) {
self->selected_method = self->tag_method;
} else {
self->selected_method = self->method;
}
if (self->selected_method != self->active_method) {
GST_DEBUG_OBJECT (self, "Rotation orientation %d -> %d",
self->active_method, self->selected_method);
gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (self));
}
g_mutex_unlock (&self->lock);
}
/**
* SECTION:element-cudaconvertscale
* @title: cudaconvertscale
* @short_description: A CUDA based color conversion and video resizing element
*
* This element resizes video frames and change color space.
* By default the element will try to negotiate to the same size on the source
* and sinkpad so that no scaling is needed.
* It is therefore safe to insert this element in a pipeline to
* get more robust behaviour without any cost if no scaling is needed.
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! cudaupload ! cudaconvertscale ! cudadownload ! autovideosink
* ```
*
* Since: 1.22
*/
enum
{
PROP_CONVERT_SCALE_0,
PROP_CONVERT_SCALE_ADD_BORDERS,
PROP_CONVERT_SCALE_VIDEO_DIRECTION,
};
struct _GstCudaConvertScale
{
GstCudaBaseConvert parent;
};
static void
gst_cuda_convert_scale_video_direction_interface_init
(GstVideoDirectionInterface * iface)
{
}
static void gst_cuda_convert_scale_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_cuda_convert_scale_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static gboolean gst_cuda_convert_scale_sink_event (GstBaseTransform * trans,
GstEvent * event);
#define gst_cuda_convert_scale_parent_class convert_scale_parent_class
G_DEFINE_TYPE_WITH_CODE (GstCudaConvertScale, gst_cuda_convert_scale,
GST_TYPE_CUDA_BASE_CONVERT,
G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_DIRECTION,
gst_cuda_convert_scale_video_direction_interface_init));
static void gst_cuda_convert_scale_before_transform (GstBaseTransform * trans,
GstBuffer * buffer);
static void
gst_cuda_convert_scale_class_init (GstCudaConvertScaleClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *transform_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_cuda_convert_scale_set_property;
gobject_class->get_property = gst_cuda_convert_scale_get_property;
g_object_class_install_property (gobject_class,
PROP_CONVERT_SCALE_ADD_BORDERS,
g_param_spec_boolean ("add-borders", "Add Borders",
"Add borders if necessary to keep the display aspect ratio",
DEFAULT_ADD_BORDERS, (GParamFlags) (GST_PARAM_MUTABLE_PLAYING |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
/**
* GstCudaConvertScale:video-direction:
*
* Video rotation/flip method to use
*
* Since: 1.24
*/
g_object_class_override_property (gobject_class,
PROP_CONVERT_SCALE_VIDEO_DIRECTION, "video-direction");
gst_element_class_set_static_metadata (element_class,
"CUDA colorspace converter and scaler",
"Filter/Converter/Video/Scaler/Colorspace/Effect/Hardware",
"Resizes video and allow color conversion using CUDA",
"Seungha Yang <seungha@centricular.com>");
transform_class->passthrough_on_same_caps = FALSE;
transform_class->before_transform =
GST_DEBUG_FUNCPTR (gst_cuda_convert_scale_before_transform);
transform_class->sink_event =
GST_DEBUG_FUNCPTR (gst_cuda_convert_scale_sink_event);
}
static void
gst_cuda_convert_scale_init (GstCudaConvertScale * self)
{
}
static void
gst_cuda_convert_scale_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstCudaBaseConvert *base = GST_CUDA_BASE_CONVERT (object);
switch (prop_id) {
case PROP_CONVERT_SCALE_ADD_BORDERS:
gst_cuda_base_convert_set_add_border (base, g_value_get_boolean (value));
break;
case PROP_CONVERT_SCALE_VIDEO_DIRECTION:
gst_cuda_base_convert_set_orientation (base, g_value_get_enum (value),
FALSE);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_cuda_convert_scale_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstCudaBaseConvert *base = GST_CUDA_BASE_CONVERT (object);
switch (prop_id) {
case PROP_CONVERT_SCALE_ADD_BORDERS:
g_value_set_boolean (value, base->add_borders);
break;
case PROP_CONVERT_SCALE_VIDEO_DIRECTION:
g_value_set_enum (value, base->method);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_cuda_convert_scale_before_transform (GstBaseTransform * trans,
GstBuffer * buffer)
{
GstCudaBaseConvert *base = GST_CUDA_BASE_CONVERT (trans);
gboolean update = FALSE;
GstCaps *in_caps;
GstCaps *out_caps;
GstBaseTransformClass *klass;
GST_BASE_TRANSFORM_CLASS (convert_scale_parent_class)->before_transform
(trans, buffer);
g_mutex_lock (&base->lock);
if (base->selected_method != base->active_method)
update = TRUE;
g_mutex_unlock (&base->lock);
if (!update)
return;
/* basetransform wouldn't call set_caps if in/out caps were not changed.
* Update it manually here */
GST_DEBUG_OBJECT (base, "Updating caps for direction change");
in_caps = gst_pad_get_current_caps (GST_BASE_TRANSFORM_SINK_PAD (trans));
if (!in_caps) {
GST_WARNING_OBJECT (trans, "sinkpad has no current caps");
return;
}
out_caps = gst_pad_get_current_caps (GST_BASE_TRANSFORM_SRC_PAD (trans));
if (!out_caps) {
GST_WARNING_OBJECT (trans, "srcpad has no current caps");
gst_caps_unref (in_caps);
return;
}
klass = GST_BASE_TRANSFORM_GET_CLASS (trans);
klass->set_caps (trans, in_caps, out_caps);
gst_caps_unref (in_caps);
gst_caps_unref (out_caps);
gst_base_transform_reconfigure_src (trans);
}
static gboolean
gst_cuda_convert_scale_sink_event (GstBaseTransform * trans, GstEvent * event)
{
GstCudaBaseConvert *base = GST_CUDA_BASE_CONVERT (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_TAG:{
GstTagList *taglist;
GstVideoOrientationMethod method = GST_VIDEO_ORIENTATION_IDENTITY;
gst_event_parse_tag (event, &taglist);
if (gst_video_orientation_from_tag (taglist, &method))
gst_cuda_base_convert_set_orientation (base, method, TRUE);
break;
}
default:
break;
}
return
GST_BASE_TRANSFORM_CLASS (convert_scale_parent_class)->sink_event
(trans, event);
}
/**
* SECTION:element-cudaconvert
* @title: cudaconvert
*
* Convert video frames between supported video formats.
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! cudaupload ! cudaconvert ! cudadownload ! autovideosink
* ```
*
* Since: 1.20
*/
struct _GstCudaConvert
{
GstCudaBaseConvert parent;
};
static GstCaps *gst_cuda_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_cuda_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
G_DEFINE_TYPE (GstCudaConvert, gst_cuda_convert, GST_TYPE_CUDA_BASE_CONVERT);
static void
gst_cuda_convert_class_init (GstCudaConvertClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
gst_element_class_set_static_metadata (element_class,
"CUDA colorspace converter",
"Filter/Converter/Video/Hardware",
"Converts video from one colorspace to another using CUDA",
"Seungha Yang <seungha.yang@navercorp.com>");
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_cuda_convert_transform_caps);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_cuda_convert_fixate_caps);
}
static void
gst_cuda_convert_init (GstCudaConvert * self)
{
}
static GstCaps *
gst_cuda_convert_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_cuda_base_convert_caps_remove_format_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static GstCaps *
gst_cuda_convert_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GstCaps *format = NULL;
GST_DEBUG_OBJECT (base,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
format = gst_cuda_base_convert_get_fixed_format (base, direction, caps,
othercaps);
gst_caps_unref (othercaps);
if (gst_caps_is_empty (format)) {
GST_ERROR_OBJECT (base, "Could not convert formats");
} else {
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, format);
}
return format;
}
/**
* SECTION:element-cudascale
* @title: cudascale
*
* A CUDA based video resizing element
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc ! video/x-raw,width=640,height=480 ! cudaupload ! cudascale ! cudadownload ! video/x-raw,width=1280,height=720 ! fakesink
* ```
* This will upload a 640x480 resolution test video to CUDA
* memory space and resize it to 1280x720 resolution. Then a resized CUDA
* frame will be downloaded to system memory space.
*
* Since: 1.20
*/
enum
{
PROP_SCALE_0,
PROP_SCALE_ADD_BORDERS,
};
struct _GstCudaScale
{
GstCudaBaseConvert parent;
};
static void gst_cuda_scale_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_cuda_scale_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstCaps *gst_cuda_scale_transform_caps (GstBaseTransform *
trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static GstCaps *gst_cuda_scale_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
G_DEFINE_TYPE (GstCudaScale, gst_cuda_scale, GST_TYPE_CUDA_BASE_CONVERT);
static void
gst_cuda_scale_class_init (GstCudaScaleClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_cuda_scale_set_property;
gobject_class->get_property = gst_cuda_scale_get_property;
/**
* GstCudaScale:add-borders:
*
* Add borders if necessary to keep the display aspect ratio
*
* Since: 1.22
*/
g_object_class_install_property (gobject_class, PROP_SCALE_ADD_BORDERS,
g_param_spec_boolean ("add-borders", "Add Borders",
"Add borders if necessary to keep the display aspect ratio",
DEFAULT_ADD_BORDERS, (GParamFlags) (GST_PARAM_MUTABLE_PLAYING |
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
gst_element_class_set_static_metadata (element_class,
"CUDA video scaler",
"Filter/Converter/Video/Scaler/Hardware",
"Resize video using CUDA", "Seungha Yang <seungha.yang@navercorp.com>");
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_cuda_scale_transform_caps);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_cuda_scale_fixate_caps);
}
static void
gst_cuda_scale_init (GstCudaScale * self)
{
}
static void
gst_cuda_scale_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstCudaBaseConvert *base = GST_CUDA_BASE_CONVERT (object);
switch (prop_id) {
case PROP_SCALE_ADD_BORDERS:
gst_cuda_base_convert_set_add_border (base, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_cuda_scale_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstCudaBaseConvert *base = GST_CUDA_BASE_CONVERT (object);
switch (prop_id) {
case PROP_SCALE_ADD_BORDERS:
g_value_set_boolean (value, base->add_borders);
break;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstCaps *
gst_cuda_scale_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp, *tmp2;
GstCaps *result;
/* Get all possible caps that we can transform to */
tmp = gst_cuda_base_convert_caps_rangify_size_info (caps);
if (filter) {
tmp2 = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (tmp);
tmp = tmp2;
}
result = tmp;
GST_DEBUG_OBJECT (trans, "transformed %" GST_PTR_FORMAT " into %"
GST_PTR_FORMAT, caps, result);
return result;
}
static GstCaps *
gst_cuda_scale_fixate_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
{
GST_DEBUG_OBJECT (base,
"trying to fixate othercaps %" GST_PTR_FORMAT " based on caps %"
GST_PTR_FORMAT, othercaps, caps);
othercaps =
gst_cuda_base_convert_fixate_size (base, direction, caps, othercaps);
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
return othercaps;
}
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