gstreamer/gst/vaapi/gstvaapipluginutil.c
Gwenole Beauchesne 0607898019 vaapidecode: simplify bufferpool configuration.
Rework the logics behind the configuration of an adequate bufferpool,
especially when OpenGL meta or additional capsfeatures are needed.

Besides, for GStreamer >= 1.4, the first capsfeatures that gets matched,
and that is not system memory, is now selected by default.
2014-07-28 18:34:13 +02:00

614 lines
17 KiB
C

/*
* gstvaapipluginutil.h - VA-API plugin helpers
*
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
* Copyright (C) 2011 Collabora
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*
* This library 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 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gst/vaapi/sysdeps.h"
#include "gstvaapivideocontext.h"
#if USE_DRM
# include <gst/vaapi/gstvaapidisplay_drm.h>
#endif
#if USE_X11
# include <gst/vaapi/gstvaapidisplay_x11.h>
#endif
#if USE_GLX
# include <gst/vaapi/gstvaapidisplay_glx.h>
#endif
#if USE_WAYLAND
# include <gst/vaapi/gstvaapidisplay_wayland.h>
#endif
#include "gstvaapipluginutil.h"
#include "gstvaapipluginbase.h"
/* Preferred first */
static const char *display_types[] = {
"gst-vaapi-display",
"vaapi-display",
#if USE_WAYLAND
"wl-display",
"wl-display-name",
#endif
#if USE_X11
"x11-display",
"x11-display-name",
#endif
#if USE_DRM
"drm-device",
"drm-device-path",
#endif
NULL
};
typedef struct
{
const gchar *type_str;
GstVaapiDisplayType type;
GstVaapiDisplay *(*create_display) (const gchar *);
} DisplayMap;
static const DisplayMap g_display_map[] = {
#if USE_WAYLAND
{"wayland",
GST_VAAPI_DISPLAY_TYPE_WAYLAND,
gst_vaapi_display_wayland_new},
#endif
#if USE_GLX
{"glx",
GST_VAAPI_DISPLAY_TYPE_GLX,
gst_vaapi_display_glx_new},
#endif
#if USE_X11
{"x11",
GST_VAAPI_DISPLAY_TYPE_X11,
gst_vaapi_display_x11_new},
#endif
#if USE_DRM
{"drm",
GST_VAAPI_DISPLAY_TYPE_DRM,
gst_vaapi_display_drm_new},
#endif
{NULL,}
};
static GstVaapiDisplay *
gst_vaapi_create_display (GstVaapiDisplayType display_type,
const gchar * display_name)
{
GstVaapiDisplay *display = NULL;
const DisplayMap *m;
for (m = g_display_map; m->type_str != NULL; m++) {
if (display_type != GST_VAAPI_DISPLAY_TYPE_ANY && display_type != m->type)
continue;
display = m->create_display (display_name);
if (display || display_type != GST_VAAPI_DISPLAY_TYPE_ANY)
break;
}
return display;
}
gboolean
gst_vaapi_ensure_display (gpointer element, GstVaapiDisplayType type)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element);
GstVaapiDisplay *display;
GstVideoContext *context;
g_return_val_if_fail (GST_IS_VIDEO_CONTEXT (element), FALSE);
context = GST_VIDEO_CONTEXT (element);
g_return_val_if_fail (context != NULL, FALSE);
gst_vaapi_video_context_prepare (context, display_types);
/* Neighbour found and it updated the display */
if (plugin->display
&& gst_vaapi_display_type_is_compatible (plugin->display_type, type))
return TRUE;
/* If no neighboor, or application not interested, use system default */
display = gst_vaapi_create_display (type, plugin->display_name);
if (!display)
return FALSE;
gst_vaapi_video_context_propagate (context, display);
GST_VAAPI_PLUGIN_BASE_DISPLAY_REPLACE (plugin, display);
gst_vaapi_display_unref (display);
return TRUE;
}
void
gst_vaapi_set_display (const gchar * type,
const GValue * value, GstVaapiDisplay ** display_ptr)
{
GstVaapiDisplay *display = NULL;
if (!strcmp (type, "vaapi-display")) {
g_return_if_fail (G_VALUE_HOLDS_POINTER (value));
display = gst_vaapi_display_new_with_display (g_value_get_pointer (value));
} else if (!strcmp (type, "gst-vaapi-display")) {
g_return_if_fail (G_VALUE_HOLDS_POINTER (value));
display = gst_vaapi_display_ref (g_value_get_pointer (value));
}
#if USE_DRM
else if (!strcmp (type, "drm-device")) {
gint device;
g_return_if_fail (G_VALUE_HOLDS_INT (value));
device = g_value_get_int (value);
display = gst_vaapi_display_drm_new_with_device (device);
} else if (!strcmp (type, "drm-device-path")) {
const gchar *device_path;
g_return_if_fail (G_VALUE_HOLDS_STRING (value));
device_path = g_value_get_string (value);
display = gst_vaapi_display_drm_new (device_path);
}
#endif
#if USE_X11
else if (!strcmp (type, "x11-display-name")) {
g_return_if_fail (G_VALUE_HOLDS_STRING (value));
#if USE_GLX
display = gst_vaapi_display_glx_new (g_value_get_string (value));
#endif
if (!display)
display = gst_vaapi_display_x11_new (g_value_get_string (value));
} else if (!strcmp (type, "x11-display")) {
g_return_if_fail (G_VALUE_HOLDS_POINTER (value));
#if USE_GLX
display =
gst_vaapi_display_glx_new_with_display (g_value_get_pointer (value));
#endif
if (!display)
display =
gst_vaapi_display_x11_new_with_display (g_value_get_pointer (value));
}
#endif
#if USE_WAYLAND
else if (!strcmp (type, "wl-display")) {
struct wl_display *wl_display;
g_return_if_fail (G_VALUE_HOLDS_POINTER (value));
wl_display = g_value_get_pointer (value);
display = gst_vaapi_display_wayland_new_with_display (wl_display);
} else if (!strcmp (type, "wl-display-name")) {
const gchar *display_name;
g_return_if_fail (G_VALUE_HOLDS_STRING (value));
display_name = g_value_get_string (value);
display = gst_vaapi_display_wayland_new (display_name);
}
#endif
if (display) {
gst_vaapi_display_replace (display_ptr, display);
gst_vaapi_display_unref (display);
}
}
gboolean
gst_vaapi_reply_to_query (GstQuery * query, GstVaapiDisplay * display)
{
#if GST_CHECK_VERSION(1,1,0)
const gchar *type = NULL;
GstContext *context;
if (GST_QUERY_TYPE (query) != GST_QUERY_CONTEXT)
return FALSE;
if (!display)
return FALSE;
if (!gst_query_parse_context_type (query, &type))
return FALSE;
if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
return FALSE;
context = gst_vaapi_video_context_new_with_display (display, FALSE);
gst_query_set_context (query, context);
gst_context_unref (context);
return TRUE;
#else
GstVaapiDisplayType display_type;
const gchar **types;
const gchar *type;
gint i;
gboolean res = FALSE;
if (GST_QUERY_TYPE (query) != GST_QUERY_CUSTOM)
return FALSE;
if (!display)
return FALSE;
types = gst_video_context_query_get_supported_types (query);
if (!types)
return FALSE;
display_type = gst_vaapi_display_get_display_type (display);
for (i = 0; types[i] && !res; i++) {
type = types[i];
res = TRUE;
if (!strcmp (type, "gst-vaapi-display")) {
gst_video_context_query_set_pointer (query, type, display);
} else if (!strcmp (type, "vaapi-display")) {
VADisplay vadpy = gst_vaapi_display_get_display (display);
gst_video_context_query_set_pointer (query, type, vadpy);
} else {
switch (display_type) {
#if USE_DRM
case GST_VAAPI_DISPLAY_TYPE_DRM:{
GstVaapiDisplayDRM *const drm_dpy = GST_VAAPI_DISPLAY_DRM (display);
if (!strcmp (type, "drm-device-path"))
gst_video_context_query_set_string (query, type,
gst_vaapi_display_drm_get_device_path (drm_dpy));
#if 0
/* XXX: gst_video_context_query_set_int() does not exist yet */
else if (!strcmp (type, "drm-device"))
gst_video_context_query_set_int (query, type,
gst_vaapi_display_drm_get_device (drm_dpy));
#endif
else
res = FALSE;
break;
}
#endif
#if USE_X11
#if USE_GLX
case GST_VAAPI_DISPLAY_TYPE_GLX:
#endif
case GST_VAAPI_DISPLAY_TYPE_X11:{
GstVaapiDisplayX11 *const xvadpy = GST_VAAPI_DISPLAY_X11 (display);
Display *const x11dpy = gst_vaapi_display_x11_get_display (xvadpy);
if (!strcmp (type, "x11-display"))
gst_video_context_query_set_pointer (query, type, x11dpy);
else if (!strcmp (type, "x11-display-name"))
gst_video_context_query_set_string (query, type,
DisplayString (x11dpy));
else
res = FALSE;
break;
}
#endif
#if USE_WAYLAND
case GST_VAAPI_DISPLAY_TYPE_WAYLAND:{
GstVaapiDisplayWayland *const wlvadpy =
GST_VAAPI_DISPLAY_WAYLAND (display);
struct wl_display *const wldpy =
gst_vaapi_display_wayland_get_display (wlvadpy);
if (!strcmp (type, "wl-display"))
gst_video_context_query_set_pointer (query, type, wldpy);
else
res = FALSE;
break;
}
#endif
default:
res = FALSE;
break;
}
}
}
return res;
#endif /* !GST_CHECK_VERSION(1,1,0) */
}
gboolean
gst_vaapi_append_surface_caps (GstCaps * out_caps, GstCaps * in_caps)
{
GstStructure *structure;
const GValue *v_width, *v_height, *v_framerate, *v_par;
guint i, n_structures;
structure = gst_caps_get_structure (in_caps, 0);
v_width = gst_structure_get_value (structure, "width");
v_height = gst_structure_get_value (structure, "height");
v_framerate = gst_structure_get_value (structure, "framerate");
v_par = gst_structure_get_value (structure, "pixel-aspect-ratio");
if (!v_width || !v_height)
return FALSE;
n_structures = gst_caps_get_size (out_caps);
for (i = 0; i < n_structures; i++) {
structure = gst_caps_get_structure (out_caps, i);
gst_structure_set_value (structure, "width", v_width);
gst_structure_set_value (structure, "height", v_height);
if (v_framerate)
gst_structure_set_value (structure, "framerate", v_framerate);
if (v_par)
gst_structure_set_value (structure, "pixel-aspect-ratio", v_par);
}
return TRUE;
}
gboolean
gst_vaapi_apply_composition (GstVaapiSurface * surface, GstBuffer * buffer)
{
#if GST_CHECK_VERSION(1,0,0)
GstVideoOverlayCompositionMeta *const cmeta =
gst_buffer_get_video_overlay_composition_meta (buffer);
GstVideoOverlayComposition *composition;
if (!cmeta)
return TRUE;
composition = cmeta->overlay;
#else
GstVideoOverlayComposition *const composition =
gst_video_buffer_get_overlay_composition (buffer);
#endif
if (!composition)
return TRUE;
return gst_vaapi_surface_set_subpictures_from_composition (surface,
composition, TRUE);
}
gboolean
gst_vaapi_value_set_format (GValue * value, GstVideoFormat format)
{
#if GST_CHECK_VERSION(1,0,0)
const gchar *str;
str = gst_video_format_to_string (format);
if (!str)
return FALSE;
g_value_init (value, G_TYPE_STRING);
g_value_set_string (value, str);
#else
guint32 fourcc;
fourcc = gst_video_format_to_fourcc (format);
if (!fourcc)
return FALSE;
g_value_init (value, GST_TYPE_FOURCC);
gst_value_set_fourcc (value, fourcc);
#endif
return TRUE;
}
gboolean
gst_vaapi_value_set_format_list (GValue * value, GArray * formats)
{
GValue v_format = G_VALUE_INIT;
guint i;
g_value_init (value, GST_TYPE_LIST);
for (i = 0; i < formats->len; i++) {
GstVideoFormat const format = g_array_index (formats, GstVideoFormat, i);
if (!gst_vaapi_value_set_format (&v_format, format))
continue;
gst_value_list_append_value (value, &v_format);
g_value_unset (&v_format);
}
return TRUE;
}
void
set_video_template_caps (GstCaps * caps)
{
GstStructure *const structure = gst_caps_get_structure (caps, 0);
gst_structure_set (structure,
"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1,
"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
}
GstCaps *
gst_vaapi_video_format_new_template_caps (GstVideoFormat format)
{
#if GST_CHECK_VERSION(1,0,0)
GstCaps *caps;
g_return_val_if_fail (format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
caps = gst_caps_new_empty_simple ("video/x-raw");
if (!caps)
return NULL;
gst_caps_set_simple (caps,
"format", G_TYPE_STRING, gst_video_format_to_string (format), NULL);
set_video_template_caps (caps);
return caps;
#else
return gst_video_format_new_template_caps (format);
#endif
}
GstCaps *
gst_vaapi_video_format_new_template_caps_from_list (GArray * formats)
{
#if GST_CHECK_VERSION(1,0,0)
GValue v_formats = G_VALUE_INIT;
GstCaps *caps;
caps = gst_caps_new_empty_simple ("video/x-raw");
if (!caps)
return NULL;
if (!gst_vaapi_value_set_format_list (&v_formats, formats)) {
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_value (caps, "format", &v_formats);
set_video_template_caps (caps);
#else
GstCaps *caps, *tmp_caps;
guint i;
g_return_val_if_fail (formats != NULL, NULL);
caps = gst_caps_new_empty ();
if (!caps)
return NULL;
for (i = 0; i < formats->len; i++) {
const GstVideoFormat format = g_array_index (formats, GstVideoFormat, i);
tmp_caps = gst_vaapi_video_format_new_template_caps (format);
if (tmp_caps)
gst_caps_append (caps, tmp_caps);
}
#endif
return caps;
}
GstCaps *
gst_vaapi_video_format_new_template_caps_with_features (GstVideoFormat format,
const gchar * features_string)
{
GstCaps *caps;
caps = gst_vaapi_video_format_new_template_caps (format);
if (!caps)
return NULL;
#if GST_CHECK_VERSION(1,1,0)
GstCapsFeatures *const features =
gst_caps_features_new (features_string, NULL);
if (!features) {
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_features (caps, 0, features);
#endif
return caps;
}
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstVideoFormat format)
{
GstVaapiCapsFeature feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
#if GST_CHECK_VERSION(1,1,0)
guint i, num_structures;
GstCaps *caps = NULL;
GstCaps *gl_texture_upload_caps = NULL;
GstCaps *sysmem_caps = NULL;
GstCaps *vaapi_caps = NULL;
GstCaps *out_caps;
out_caps = gst_pad_peer_query_caps (pad, NULL);
if (!out_caps)
goto cleanup;
gl_texture_upload_caps =
gst_vaapi_video_format_new_template_caps_with_features
(GST_VIDEO_FORMAT_RGBA,
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META);
if (!gl_texture_upload_caps)
goto cleanup;
if (format == GST_VIDEO_FORMAT_ENCODED)
format = GST_VIDEO_FORMAT_I420;
vaapi_caps =
gst_vaapi_video_format_new_template_caps_with_features (format,
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE);
if (!vaapi_caps)
goto cleanup;
sysmem_caps =
gst_vaapi_video_format_new_template_caps_with_features (format,
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
if (!sysmem_caps)
goto cleanup;
num_structures = gst_caps_get_size (out_caps);
for (i = 0; i < num_structures; i++) {
GstCapsFeatures *const features = gst_caps_get_features (out_caps, i);
GstStructure *const structure = gst_caps_get_structure (out_caps, i);
#if GST_CHECK_VERSION(1,3,0)
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
#endif
caps = gst_caps_new_full (gst_structure_copy (structure), NULL);
if (!caps)
continue;
gst_caps_set_features (caps, 0, gst_caps_features_copy (features));
if (gst_caps_can_intersect (caps, vaapi_caps) &&
feature < GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE)
feature = GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE;
else if (gst_caps_can_intersect (caps, gl_texture_upload_caps) &&
feature < GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META)
feature = GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META;
else if (gst_caps_can_intersect (caps, sysmem_caps) &&
feature < GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
gst_caps_replace (&caps, NULL);
#if GST_CHECK_VERSION(1,3,0)
/* Stop at the first match, the caps should already be sorted out
by preference order from downstream elements */
if (feature != GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
break;
#endif
}
cleanup:
gst_caps_replace (&gl_texture_upload_caps, NULL);
gst_caps_replace (&sysmem_caps, NULL);
gst_caps_replace (&vaapi_caps, NULL);
gst_caps_replace (&caps, NULL);
gst_caps_replace (&out_caps, NULL);
#endif
return feature;
}
gboolean
gst_caps_set_interlaced (GstCaps * caps, GstVideoInfo * vip)
{
#if GST_CHECK_VERSION(1,0,0)
GstVideoInterlaceMode mode;
const gchar *mode_str;
mode = vip ? GST_VIDEO_INFO_INTERLACE_MODE (vip) :
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
switch (mode) {
case GST_VIDEO_INTERLACE_MODE_PROGRESSIVE:
mode_str = "progressive";
break;
case GST_VIDEO_INTERLACE_MODE_INTERLEAVED:
mode_str = "interleaved";
break;
case GST_VIDEO_INTERLACE_MODE_MIXED:
mode_str = "mixed";
break;
default:
GST_ERROR ("unsupported `interlace-mode' %d", mode);
return FALSE;
}
gst_caps_set_simple (caps, "interlace-mode", G_TYPE_STRING, mode_str, NULL);
#else
gst_caps_set_simple (caps, "interlaced", G_TYPE_BOOLEAN,
vip ? GST_VIDEO_INFO_IS_INTERLACED (vip) : FALSE, NULL);
#endif
return TRUE;
}