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gstreamer/subprojects/gst-plugins-bad/sys/msdk/gstmsdkvpputil.c
Mengkejiergeli Ba 2c61fd92e2 msdkvpp: Fix dma caps negotiation 
Modify the fix_output_format in vpp to directly generate caps with
negotiated src caps, and we have the correct dma caps negotiation in
fix_output_format function. And thus, we can remove the redundant
negotiation of using function pad_accept_memory in vpp.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5845>
2024-01-16 14:04:05 +08:00

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/*
* gstmsdkvpputil.c - MediaSDK video post processing utilities
*
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) 2005-2012 David Schleef <ds@schleef.org>
* Copyright (C) 2016 Intel Corporation
* Copyright (C) 2018 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
* Author: Victor Jaquez <victorx.jaquez@intel.com>
* Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gstmsdkvpputil.h"
#include "msdk-enums.h"
#include "gstmsdkcaps.h"
#ifndef _WIN32
#include <libdrm/drm_fourcc.h>
#include <gst/va/gstvavideoformat.h>
#else
#include <gst/d3d11/gstd3d11.h>
#endif
#define SWAP_GINT(a, b) do { \
const gint t = a; a = b; b = t; \
} while (0)
gboolean
gst_msdkvpp_is_deinterlace_enabled (GstMsdkVPP * msdkvpp, GstVideoInfo * vip)
{
gboolean deinterlace;
switch (msdkvpp->deinterlace_mode) {
case GST_MSDKVPP_DEINTERLACE_MODE_AUTO:
deinterlace = GST_VIDEO_INFO_IS_INTERLACED (vip);
break;
case GST_MSDKVPP_DEINTERLACE_MODE_INTERLACED:
deinterlace = TRUE;
break;
default:
deinterlace = FALSE;
break;
}
return deinterlace;
}
/* This help function is to fixate output format for vpp src caps,
* when downstream element does not set a specific format, i.e. queried
* caps contains a list of formats, vpp src caps will loop the format
* list and find one format that matches the vpp sink caps format (in vinfo);
* if downstream has set a specific format, we use this format for vpp src caps.
*/
static GstCaps *
fixate_output_format (GstMsdkVPP * thiz, GstVideoInfo * vinfo, GstCaps * caps)
{
GstVideoFormat fmt = GST_VIDEO_FORMAT_UNKNOWN;
guint i, size, fixated_idx = 0;
GstStructure *s, *out = NULL;
GstCapsFeatures *features;
GstCaps *ret;
const GValue *format;
gboolean is_va = FALSE, is_dma = FALSE, is_d3d = FALSE;
gboolean fixate = FALSE;
#ifndef _WIN32
guint64 modifier = DRM_FORMAT_MOD_INVALID;
guint32 fourcc;
#endif
if (!caps)
return NULL;
size = gst_caps_get_size (caps);
for (i = 0; i < size; i++) {
s = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
is_va = is_dma = is_d3d = FALSE;
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_DMABUF)) {
format = gst_structure_get_value (s, "drm-format");
is_dma = TRUE;
} else {
format = gst_structure_get_value (s, "format");
#ifndef _WIN32
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_VA))
is_va = TRUE;
#else
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY))
is_d3d = TRUE;
#endif
}
if (format == NULL)
continue;
if (GST_VALUE_HOLDS_LIST (format)) {
gint j, len;
len = gst_value_list_get_size (format);
GST_DEBUG_OBJECT (thiz, "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)) {
#ifndef _WIN32
if (is_dma) {
fourcc = gst_video_dma_drm_fourcc_from_string
(g_value_get_string (val), &modifier);
fmt = gst_va_video_format_from_drm_fourcc (fourcc);
} else {
fmt = gst_video_format_from_string (g_value_get_string (val));
}
#else
fmt = gst_video_format_from_string (g_value_get_string (val));
#endif
if (fmt == GST_VIDEO_FORMAT_UNKNOWN)
continue;
if (fmt == GST_VIDEO_INFO_FORMAT (vinfo)) {
fixate = TRUE;
fixated_idx = i;
break;
}
}
}
} else if (G_VALUE_HOLDS_STRING (format)) {
#ifndef _WIN32
if (is_dma) {
fourcc = gst_video_dma_drm_fourcc_from_string
(g_value_get_string (format), &modifier);
fmt = gst_va_video_format_from_drm_fourcc (fourcc);
} else {
fmt = gst_video_format_from_string (g_value_get_string (format));
}
#else
fmt = gst_video_format_from_string (g_value_get_string (format));
#endif
if (fmt == GST_VIDEO_FORMAT_UNKNOWN)
continue;
/* size > 1 means downstream doesn't specify the caps directly, so we
* still need to compare fmt with the one in vpp sinkcaps */
if (size > 1 && fmt != GST_VIDEO_INFO_FORMAT (vinfo))
continue;
fixate = TRUE;
break;
}
if (fixate)
break;
}
if (!fixate)
fmt = GST_VIDEO_FORMAT_NV12;
out = gst_structure_copy (gst_caps_get_structure (caps, fixated_idx));
features = gst_caps_features_copy (gst_caps_get_features (caps, fixated_idx));
#ifndef _WIN32
if (is_dma) {
gchar *drm_fmt_name;
g_assert (modifier != DRM_FORMAT_MOD_INVALID);
drm_fmt_name = gst_video_dma_drm_fourcc_to_string
(gst_va_drm_fourcc_from_video_format (fmt), modifier);
gst_structure_set (out, "drm-format", G_TYPE_STRING, drm_fmt_name, NULL);
g_free (drm_fmt_name);
} else {
gst_structure_set (out, "format", G_TYPE_STRING,
gst_video_format_to_string (fmt), NULL);
}
#else
gst_structure_set (out, "format", G_TYPE_STRING,
gst_video_format_to_string (fmt), NULL);
#endif
ret = gst_caps_new_full (out, NULL);
gst_caps_set_features_simple (ret, features);
#ifndef _WIN32
if (is_va)
gst_caps_set_features (ret, 0,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_VA));
#else
if (is_d3d)
gst_caps_set_features (ret, 0,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY));
#endif
else if (is_dma)
gst_caps_set_features (ret, 0,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_DMABUF));
return ret;
}
static gboolean
fixate_output_frame_size (GstMsdkVPP * thiz, GstVideoInfo * vinfo,
GstStructure * outs)
{
const GValue *to_par;
GValue tpar = G_VALUE_INIT;
gboolean ret;
ret = TRUE;
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
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;
}
/* 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_n = GST_VIDEO_INFO_PAR_N (vinfo);
from_par_d = GST_VIDEO_INFO_PAR_D (vinfo);
from_w = GST_VIDEO_INFO_WIDTH (vinfo);
from_h = GST_VIDEO_INFO_HEIGHT (vinfo);
/* adjust for crop settings (NOTE: msdk min frame size is 2x2) */
if ((thiz->crop_left + thiz->crop_right >= from_w - 1)
|| (thiz->crop_top + thiz->crop_bottom >= from_h - 1)) {
GST_WARNING_OBJECT (thiz, "ignoring crop... cropping too much!");
} else {
from_w -= thiz->crop_left + thiz->crop_right;
from_h -= thiz->crop_top + thiz->crop_bottom;
}
/* compensate for rotation if needed */
if (thiz->rotation == 90 || thiz->rotation == 270) {
SWAP_GINT (from_w, from_h);
SWAP_GINT (from_par_n, from_par_d);
}
gst_structure_get_int (outs, "width", &w);
gst_structure_get_int (outs, "height", &h);
/* 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 (thiz,
"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 (thiz, "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))
goto overflow_error;
GST_DEBUG_OBJECT (thiz, "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 (thiz, "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 (thiz, "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))
goto overflow_error;
w = (guint) gst_util_uint64_scale_int (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_structure_free (tmp);
goto overflow_error;
}
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))
goto overflow_error;
w = (guint) gst_util_uint64_scale_int (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 (thiz, "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 (thiz, "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))
goto overflow_error;
h = (guint) gst_util_uint64_scale_int (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_structure_free (tmp);
goto overflow_error;
}
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))
goto overflow_error;
h = (guint) gst_util_uint64_scale_int (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))
goto overflow_error;
/* 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 (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 (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 height that was nearest to the original
* height and the nearest possible width. This changes the DAR but
* there's not much else to do here.
*/
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_structure_free (tmp);
goto overflow_error;
}
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))
goto overflow_error;
w = (guint) gst_util_uint64_scale_int (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 (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 (to_par == &tpar)
g_value_unset (&tpar);
return ret;
/* ERRORS */
overflow_error:
{
ret = FALSE;
GST_ELEMENT_ERROR (thiz, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
goto done;
}
}
static gboolean
fixate_frame_rate (GstMsdkVPP * thiz, GstVideoInfo * vinfo, GstStructure * outs)
{
gint fps_n = 0, fps_d;
/* fixate the srcpad fps */
if (gst_structure_fixate_field (outs, "framerate"))
gst_structure_get (outs, "framerate", GST_TYPE_FRACTION, &fps_n, &fps_d,
NULL);
/* if we don't have a fixed non-zero fps_n, use the sinkpad fps */
if (!fps_n) {
fps_n = GST_VIDEO_INFO_FPS_N (vinfo);
fps_d = GST_VIDEO_INFO_FPS_D (vinfo);
}
if (gst_msdkvpp_is_deinterlace_enabled (thiz, vinfo)) {
/* Fixme: set double framerate?:
* msdk is not outputting double framerate for bob or adv deinterlace */
if (!gst_util_fraction_multiply (fps_n, fps_d, 1, 1, &fps_n, &fps_d))
goto overflow_error;
}
gst_structure_set (outs, "framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL);
return TRUE;
/* ERRORS */
overflow_error:
{
GST_ELEMENT_ERROR (thiz, CORE, NEGOTIATION, (NULL),
("Error calculating the output framerate - integer overflow"));
return FALSE;
}
}
static gboolean
set_multiview_mode (GstMsdkVPP * thiz, GstVideoInfo * vinfo,
GstStructure * outs)
{
const gchar *caps_str;
caps_str =
gst_video_multiview_mode_to_caps_string (GST_VIDEO_INFO_MULTIVIEW_MODE
(vinfo));
if (!caps_str)
return TRUE;
gst_structure_set (outs, "multiview-mode", G_TYPE_STRING, caps_str,
"multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
GST_VIDEO_INFO_MULTIVIEW_FLAGS (vinfo), GST_FLAG_SET_MASK_EXACT, NULL);
if (GST_VIDEO_INFO_VIEWS (vinfo) > 1) {
gst_structure_set (outs, "views", G_TYPE_INT, GST_VIDEO_INFO_VIEWS (vinfo),
NULL);
}
return TRUE;
}
static gboolean
set_interlace_mode (GstMsdkVPP * thiz, GstVideoInfo * vinfo,
GstStructure * outs)
{
const gchar *interlace_mode = NULL;
if (gst_msdkvpp_is_deinterlace_enabled (thiz, vinfo)) {
interlace_mode = "progressive";
} else {
interlace_mode =
gst_video_interlace_mode_to_string (GST_VIDEO_INFO_INTERLACE_MODE
(vinfo));
}
if (!interlace_mode)
return FALSE;
gst_structure_set (outs, "interlace-mode", G_TYPE_STRING, interlace_mode,
NULL);
return TRUE;
}
static GstCaps *
_get_preferred_src_caps (GstMsdkVPP * thiz, GstVideoInfo * vinfo,
GstCaps * srccaps)
{
GstStructure *structure = NULL;
GstCaps *outcaps, *fixate_caps;
GstCapsFeatures *features;
/* Fixate the format */
fixate_caps = fixate_output_format (thiz, vinfo, srccaps);
if (!fixate_caps)
goto fixate_failed;
structure = gst_caps_get_structure (fixate_caps, 0);
features = gst_caps_get_features (fixate_caps, 0);
/* make a copy */
structure = gst_structure_copy (structure);
features = gst_caps_features_copy (features);
gst_caps_unref (fixate_caps);
if (thiz->keep_aspect)
gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1,
1, NULL);
/* Fixate the frame size */
if (!fixate_output_frame_size (thiz, vinfo, structure))
goto fixate_failed;
/* Fixate the framerate */
if (!fixate_frame_rate (thiz, vinfo, structure))
goto fixate_failed;
/* set multiview mode based on input caps */
if (!set_multiview_mode (thiz, vinfo, structure))
goto fixate_failed;
/*Fixme: Set colorimetry */
/* set interlace mode */
if (!set_interlace_mode (thiz, vinfo, structure))
goto interlace_mode_failed;
outcaps = gst_caps_new_empty ();
gst_caps_append_structure (outcaps, structure);
gst_caps_set_features (outcaps, 0, features);
return outcaps;
/* ERRORS */
fixate_failed:
{
GST_WARNING_OBJECT (thiz, "Could not fixate src caps");
if (structure)
gst_structure_free (structure);
return NULL;
}
interlace_mode_failed:
{
GST_WARNING_OBJECT (thiz, "Invalid sink caps interlace mode");
return NULL;
}
}
/**
* gst_msdkvpp_fixate_srccaps:
* @vpp: a #GstMsdkVPP instance
* @sinkcaps: fixed #GstCaps from sink pad
* @srccaps: #GstCaps from src pad to fixate
*
* Given @srccaps and @sinkcaps returns a new allocated #GstCaps with
* the fixated caps for the src pad.
*
* Returns: A new allocated #GstCaps
**/
GstCaps *
gst_msdkvpp_fixate_srccaps (GstMsdkVPP * msdkvpp,
GstCaps * sinkcaps, GstCaps * srccaps)
{
GstVideoInfo vi;
if (!gst_msdkcaps_video_info_from_caps (sinkcaps, &vi, NULL))
return FALSE;
return _get_preferred_src_caps (msdkvpp, &vi, srccaps);
}
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