gstreamer/gst/vaapi/gstvaapipluginutil.c
Víctor Manuel Jáquez Leal c9bd45f05d plugins: handle GL params through context query
If the element instantiated the GL display and context, they should
handle them too through the context query.

https://bugzilla.gnome.org/show_bug.cgi?id=777409
2017-01-27 13:35:40 +01:00

858 lines
24 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 "gstcompat.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_EGL
# include <gst/vaapi/gstvaapidisplay_egl.h>
#endif
#if USE_WAYLAND
# include <gst/vaapi/gstvaapidisplay_wayland.h>
#endif
#include "gstvaapipluginutil.h"
#include "gstvaapipluginbase.h"
/* Environment variable for disable driver white-list */
#define GST_VAAPI_ALL_DRIVERS_ENV "GST_VAAPI_ALL_DRIVERS"
typedef GstVaapiDisplay *(*GstVaapiDisplayCreateFunc) (const gchar *);
typedef GstVaapiDisplay *(*GstVaapiDisplayCreateFromHandleFunc) (gpointer);
typedef struct
{
const gchar *type_str;
GstVaapiDisplayType type;
GstVaapiDisplayCreateFunc create_display;
GstVaapiDisplayCreateFromHandleFunc create_display_from_handle;
} DisplayMap;
/* *INDENT-OFF* */
static const DisplayMap g_display_map[] = {
#if USE_WAYLAND
{"wayland",
GST_VAAPI_DISPLAY_TYPE_WAYLAND,
gst_vaapi_display_wayland_new,
(GstVaapiDisplayCreateFromHandleFunc)
gst_vaapi_display_wayland_new_with_display},
#endif
#if USE_GLX
{"glx",
GST_VAAPI_DISPLAY_TYPE_GLX,
gst_vaapi_display_glx_new,
(GstVaapiDisplayCreateFromHandleFunc)
gst_vaapi_display_glx_new_with_display},
#endif
#if USE_X11
{"x11",
GST_VAAPI_DISPLAY_TYPE_X11,
gst_vaapi_display_x11_new,
(GstVaapiDisplayCreateFromHandleFunc)
gst_vaapi_display_x11_new_with_display},
#endif
#if USE_DRM
{"drm",
GST_VAAPI_DISPLAY_TYPE_DRM,
gst_vaapi_display_drm_new},
#endif
{NULL,}
};
/* *INDENT-ON* */
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;
}
#if USE_GST_GL_HELPERS
static GstVaapiDisplay *
gst_vaapi_create_display_from_handle (GstVaapiDisplayType display_type,
gpointer handle)
{
GstVaapiDisplay *display;
const DisplayMap *m;
if (display_type == GST_VAAPI_DISPLAY_TYPE_ANY)
return NULL;
for (m = g_display_map; m->type_str != NULL; m++) {
if (m->type == display_type) {
display = m->create_display_from_handle ?
m->create_display_from_handle (handle) : NULL;
return display;
}
}
return NULL;
}
#endif
static GstVaapiDisplay *
gst_vaapi_create_display_from_gl_context (GstObject * gl_context_object)
{
#if USE_GST_GL_HELPERS
GstGLContext *const gl_context = GST_GL_CONTEXT (gl_context_object);
GstGLDisplay *const gl_display = gst_gl_context_get_display (gl_context);
gpointer native_display =
GSIZE_TO_POINTER (gst_gl_display_get_handle (gl_display));
GstGLPlatform platform = gst_gl_context_get_gl_platform (gl_context);
GstVaapiDisplay *display, *out_display;
GstVaapiDisplayType display_type;
switch (gst_gl_display_get_handle_type (gl_display)) {
#if USE_X11
case GST_GL_DISPLAY_TYPE_X11:
#if USE_GLX
if (platform == GST_GL_PLATFORM_GLX) {
display_type = GST_VAAPI_DISPLAY_TYPE_GLX;
break;
}
#endif
display_type = GST_VAAPI_DISPLAY_TYPE_X11;
break;
#endif
#if USE_WAYLAND
case GST_GL_DISPLAY_TYPE_WAYLAND:
display_type = GST_VAAPI_DISPLAY_TYPE_WAYLAND;
break;
#endif
case GST_GL_DISPLAY_TYPE_ANY:{
/* Derive from the active window */
GstGLWindow *const gl_window = gst_gl_context_get_window (gl_context);
const gchar *const gl_window_type = g_getenv ("GST_GL_WINDOW");
display_type = GST_VAAPI_DISPLAY_TYPE_ANY;
if (!gl_window)
break;
native_display = GSIZE_TO_POINTER (gst_gl_window_get_display (gl_window));
if (gl_window_type) {
#if USE_X11
if (!display_type && g_strcmp0 (gl_window_type, "x11") == 0)
display_type = GST_VAAPI_DISPLAY_TYPE_X11;
#endif
#if USE_WAYLAND
if (!display_type && g_strcmp0 (gl_window_type, "wayland") == 0)
display_type = GST_VAAPI_DISPLAY_TYPE_WAYLAND;
#endif
} else {
#if USE_X11
if (!display_type && GST_GL_HAVE_WINDOW_X11)
display_type = GST_VAAPI_DISPLAY_TYPE_X11;
#endif
#if USE_WAYLAND
if (!display_type && GST_GL_HAVE_WINDOW_WAYLAND)
display_type = GST_VAAPI_DISPLAY_TYPE_WAYLAND;
#endif
}
gst_object_unref (gl_window);
break;
}
default:
display_type = GST_VAAPI_DISPLAY_TYPE_ANY;
break;
}
gst_object_unref (gl_display);
display = gst_vaapi_create_display_from_handle (display_type, native_display);
if (!display)
return NULL;
switch (platform) {
#if USE_EGL
case GST_GL_PLATFORM_EGL:{
guint gles_version;
switch (gst_gl_context_get_gl_api (gl_context)) {
case GST_GL_API_GLES1:
gles_version = 1;
goto create_egl_display;
case GST_GL_API_GLES2:
gles_version = 2;
goto create_egl_display;
case GST_GL_API_OPENGL:
case GST_GL_API_OPENGL3:
gles_version = 0;
create_egl_display:
out_display = gst_vaapi_display_egl_new (display, gles_version);
break;
default:
out_display = NULL;
break;
}
if (!out_display) {
gst_vaapi_display_unref (display);
return NULL;
}
gst_vaapi_display_egl_set_gl_context (GST_VAAPI_DISPLAY_EGL (out_display),
GSIZE_TO_POINTER (gst_gl_context_get_gl_context (gl_context)));
break;
}
#endif
default:
out_display = gst_vaapi_display_ref (display);
break;
}
gst_vaapi_display_unref (display);
return out_display;
#endif
GST_ERROR ("unsupported GStreamer version %s", GST_API_VERSION_S);
return NULL;
}
static void
gst_vaapi_find_gl_context (GstElement * element)
{
GstObject *gl_context;
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element);
/* if the element is vaapisink or any vaapi encoder it doesn't need
* to know a GstGLContext in order to create an appropriate
* GstVaapiDisplay. Let's them to choose their own
* GstVaapiDisplay */
if (GST_IS_VIDEO_SINK (element) || GST_IS_VIDEO_ENCODER (element))
return;
gl_context = NULL;
if (!gst_vaapi_find_gl_local_context (element, &gl_context))
gl_context = gst_vaapi_plugin_base_create_gl_context (plugin);
if (gl_context) {
gst_vaapi_plugin_base_set_gl_context (plugin, gl_context);
gst_object_unref (gl_context);
}
}
gboolean
gst_vaapi_ensure_display (GstElement * element, GstVaapiDisplayType type)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element);
GstVaapiDisplay *display;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
if (gst_vaapi_video_context_prepare (element, &plugin->display)) {
/* Neighbour found and it updated the display */
if (gst_vaapi_plugin_base_has_display_type (plugin, type))
return TRUE;
}
/* Query for a local GstGL context. If it's found, it will be used
* to create the VA display */
if (!plugin->gl_context)
gst_vaapi_find_gl_context (element);
/* If no neighboor, or application not interested, use system default */
if (plugin->gl_context)
display = gst_vaapi_create_display_from_gl_context (plugin->gl_context);
else
display = gst_vaapi_create_display (type, plugin->display_name);
if (!display)
return FALSE;
gst_vaapi_video_context_propagate (element, display);
gst_vaapi_display_unref (display);
return TRUE;
}
gboolean
gst_vaapi_handle_context_query (GstElement * element, GstQuery * query)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element);
const gchar *type = NULL;
GstContext *context, *old_context;
g_return_val_if_fail (query != NULL, FALSE);
#if USE_GST_GL_HELPERS
if (plugin->gl_display && plugin->gl_context && plugin->gl_other_context) {
if (gst_gl_handle_context_query (element, query,
(GstGLDisplay *) plugin->gl_display,
(GstGLContext *) plugin->gl_context,
(GstGLContext *) plugin->gl_other_context))
return TRUE;
}
#endif
if (!plugin->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;
gst_query_parse_context (query, &old_context);
if (old_context) {
context = gst_context_copy (old_context);
gst_vaapi_video_context_set_display (context, plugin->display);
} else {
context = gst_vaapi_video_context_new_with_display (plugin->display, FALSE);
}
gst_query_set_context (query, context);
gst_context_unref (context);
return TRUE;
}
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)
{
GstVideoOverlayCompositionMeta *const cmeta =
gst_buffer_get_video_overlay_composition_meta (buffer);
GstVideoOverlayComposition *composition = NULL;
if (cmeta)
composition = cmeta->overlay;
return gst_vaapi_surface_set_subpictures_from_composition (surface,
composition, TRUE);
}
gboolean
gst_vaapi_value_set_format (GValue * value, GstVideoFormat format)
{
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);
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;
}
static 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)
{
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;
}
GstCaps *
gst_vaapi_video_format_new_template_caps_from_list (GArray * formats)
{
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);
g_value_unset (&v_formats);
return caps;
}
GstCaps *
gst_vaapi_video_format_new_template_caps_with_features (GstVideoFormat format,
const gchar * features_string)
{
GstCapsFeatures *features;
GstCaps *caps;
caps = gst_vaapi_video_format_new_template_caps (format);
if (!caps)
return NULL;
features = gst_caps_features_new (features_string, NULL);
if (!features) {
gst_caps_unref (caps);
return NULL;
}
gst_caps_set_features (caps, 0, features);
return caps;
}
static GstVideoFormat
gst_vaapi_find_preferred_format (const GValue * format_list,
GstVideoFormat native_format)
{
const GValue *frmt;
GstVideoFormat out_format;
guint i;
/* if one format, that is the one */
if (G_VALUE_HOLDS_STRING (format_list))
return gst_video_format_from_string (g_value_get_string (format_list));
if (!GST_VALUE_HOLDS_LIST (format_list)) {
GST_ERROR ("negotiated caps do not have a valid format");
return GST_VIDEO_FORMAT_UNKNOWN;
}
if (native_format == GST_VIDEO_FORMAT_UNKNOWN
|| native_format == GST_VIDEO_FORMAT_ENCODED) {
native_format = GST_VIDEO_FORMAT_NV12; /* default VA format */
}
/* search our native format in the list */
for (i = 0; i < gst_value_list_get_size (format_list); i++) {
frmt = gst_value_list_get_value (format_list, i);
out_format = gst_video_format_from_string (g_value_get_string (frmt));
/* GStreamer do not handle encoded formats nicely. Try the next
* one. */
if (out_format == GST_VIDEO_FORMAT_ENCODED)
continue;
if (native_format == out_format)
return out_format;
}
/* just pick the first valid format in the list */
i = 0;
do {
frmt = gst_value_list_get_value (format_list, i++);
out_format = gst_video_format_from_string (g_value_get_string (frmt));
} while (out_format == GST_VIDEO_FORMAT_ENCODED);
return out_format;
}
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstCaps * allowed_caps,
GstVideoFormat * out_format_ptr)
{
GstVaapiCapsFeature feature = GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED;
guint i, j, num_structures;
GstCaps *out_caps, *caps = NULL;
static const guint feature_list[] = { GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE,
GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META,
GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY,
};
out_caps = gst_pad_peer_query_caps (pad, allowed_caps);
if (!out_caps)
goto cleanup;
if (gst_caps_is_any (out_caps) || gst_caps_is_empty (out_caps))
goto cleanup;
feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
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);
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
gst_caps_replace (&caps, NULL);
caps = gst_caps_new_full (gst_structure_copy (structure), NULL);
if (!caps)
continue;
gst_caps_set_features (caps, 0, gst_caps_features_copy (features));
for (j = 0; j < G_N_ELEMENTS (feature_list); j++) {
if (gst_vaapi_caps_feature_contains (caps, feature_list[j])
&& feature < feature_list[j]) {
feature = feature_list[j];
break;
}
}
/* 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;
}
if (!caps)
goto cleanup;
if (out_format_ptr) {
GstVideoFormat out_format;
GstStructure *structure;
const GValue *format_list;
/* if the best feature is SystemMemory, we should use the first
* caps in the peer caps set, which is the preferred by
* downstream. */
if (feature == GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
gst_caps_replace (&caps, out_caps);
/* use the first caps, which is the preferred by downstream. */
structure = gst_caps_get_structure (caps, 0);
if (!structure)
goto cleanup;
format_list = gst_structure_get_value (structure, "format");
if (!format_list)
goto cleanup;
out_format = gst_vaapi_find_preferred_format (format_list, *out_format_ptr);
if (out_format == GST_VIDEO_FORMAT_UNKNOWN)
goto cleanup;
*out_format_ptr = out_format;
}
cleanup:
gst_caps_replace (&caps, NULL);
gst_caps_replace (&out_caps, NULL);
return feature;
}
const gchar *
gst_vaapi_caps_feature_to_string (GstVaapiCapsFeature feature)
{
const gchar *str;
switch (feature) {
case GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY:
str = GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY;
break;
case GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META:
str = GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META;
break;
case GST_VAAPI_CAPS_FEATURE_VAAPI_SURFACE:
str = GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE;
break;
default:
str = NULL;
break;
}
return str;
}
gboolean
gst_caps_set_interlaced (GstCaps * caps, GstVideoInfo * vip)
{
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);
return TRUE;
}
static gboolean
_gst_caps_has_feature (const GstCaps * caps, const gchar * feature)
{
guint i;
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstCapsFeatures *const features = gst_caps_get_features (caps, i);
/* Skip ANY features, we need an exact match for correct evaluation */
if (gst_caps_features_is_any (features))
continue;
if (gst_caps_features_contains (features, feature))
return TRUE;
}
return FALSE;
}
gboolean
gst_vaapi_caps_feature_contains (const GstCaps * caps,
GstVaapiCapsFeature feature)
{
const gchar *feature_str;
g_return_val_if_fail (caps != NULL, FALSE);
feature_str = gst_vaapi_caps_feature_to_string (feature);
if (!feature_str)
return FALSE;
return _gst_caps_has_feature (caps, feature_str);
}
/* Checks whether the supplied caps contain VA surfaces */
gboolean
gst_caps_has_vaapi_surface (GstCaps * caps)
{
g_return_val_if_fail (caps != NULL, FALSE);
return _gst_caps_has_feature (caps, GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE);
}
gboolean
gst_caps_is_video_raw (GstCaps * caps)
{
GstStructure *structure;
g_return_val_if_fail (caps != NULL, FALSE);
if (!gst_caps_is_fixed (caps))
return FALSE;
if (!_gst_caps_has_feature (caps, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
return gst_structure_has_name (structure, "video/x-raw");
}
void
gst_video_info_change_format (GstVideoInfo * vip, GstVideoFormat format,
guint width, guint height)
{
GstVideoInfo vi = *vip;
gst_video_info_set_format (vip, format, width, height);
GST_VIDEO_INFO_INTERLACE_MODE (vip) = GST_VIDEO_INFO_INTERLACE_MODE (&vi);
GST_VIDEO_FORMAT_INFO_FLAGS (vip) = GST_VIDEO_FORMAT_INFO_FLAGS (&vi);
GST_VIDEO_INFO_VIEWS (vip) = GST_VIDEO_INFO_VIEWS (&vi);
GST_VIDEO_INFO_PAR_N (vip) = GST_VIDEO_INFO_PAR_N (&vi);
GST_VIDEO_INFO_PAR_D (vip) = GST_VIDEO_INFO_PAR_D (&vi);
GST_VIDEO_INFO_FPS_N (vip) = GST_VIDEO_INFO_FPS_N (&vi);
GST_VIDEO_INFO_FPS_D (vip) = GST_VIDEO_INFO_FPS_D (&vi);
GST_VIDEO_INFO_MULTIVIEW_MODE (vip) = GST_VIDEO_INFO_MULTIVIEW_MODE (&vi);
GST_VIDEO_INFO_MULTIVIEW_FLAGS (vip) = GST_VIDEO_INFO_MULTIVIEW_FLAGS (&vi);
}
/**
* gst_video_info_changed:
* @old: old #GstVideoInfo
* @new: new #GstVideoInfo
*
* Compares @old and @new
*
* Returns: %TRUE if @old has different format/width/height than
* @new. Otherwise, %FALSE.
**/
gboolean
gst_video_info_changed (const GstVideoInfo * old, const GstVideoInfo * new)
{
if (GST_VIDEO_INFO_FORMAT (old) != GST_VIDEO_INFO_FORMAT (new))
return TRUE;
if (GST_VIDEO_INFO_WIDTH (old) != GST_VIDEO_INFO_WIDTH (new))
return TRUE;
if (GST_VIDEO_INFO_HEIGHT (old) != GST_VIDEO_INFO_HEIGHT (new))
return TRUE;
return FALSE;
}
/**
* gst_video_info_force_nv12_if_encoded:
* @vinfo: a #GstVideoInfo
*
* If the format of @vinfo is %GST_VIDEO_FORMAT_ENCODED it is changed
* to %GST_VIDEO_FORMAT_NV12.
**/
void
gst_video_info_force_nv12_if_encoded (GstVideoInfo * vinfo)
{
if (GST_VIDEO_INFO_FORMAT (vinfo) != GST_VIDEO_FORMAT_ENCODED)
return;
gst_video_info_set_format (vinfo, GST_VIDEO_FORMAT_NV12,
GST_VIDEO_INFO_WIDTH (vinfo), GST_VIDEO_INFO_HEIGHT (vinfo));
}
/**
* gst_vaapi_create_test_display:
*
* Creates a temporal #GstVaapiDisplay instance, just for testing the
* supported features.
*
* Returns: a new #GstVaapiDisplay instances. Free with
* gst_vaapi_display_unref () after use.
**/
GstVaapiDisplay *
gst_vaapi_create_test_display (void)
{
return gst_vaapi_create_display (GST_VAAPI_DISPLAY_TYPE_ANY, NULL);
}
/**
* gst_vaapi_driver_is_whitelisted:
* @display: a #GstVaapiDisplay
*
* Looks the VA-API driver vendors in an internal white-list.
*
* Returns: %TRUE if driver is in the white-list, otherwise %FALSE
**/
gboolean
gst_vaapi_driver_is_whitelisted (GstVaapiDisplay * display)
{
const gchar *vendor;
guint i;
static const gchar *whitelist[] = {
"Intel i965 driver",
"mesa gallium vaapi",
NULL
};
g_return_val_if_fail (display, FALSE);
if (g_getenv (GST_VAAPI_ALL_DRIVERS_ENV))
return TRUE;
vendor = gst_vaapi_display_get_vendor_string (display);
if (!vendor)
goto no_vendor;
for (i = 0; whitelist[i]; i++) {
if (g_ascii_strncasecmp (vendor, whitelist[i], strlen (whitelist[i])) == 0)
return TRUE;
}
GST_ERROR ("Unsupported VA driver: %s. Export environment variable "
GST_VAAPI_ALL_DRIVERS_ENV " to bypass", vendor);
return FALSE;
/* ERRORS */
no_vendor:
{
GST_WARNING ("no VA-API driver vendor description");
return FALSE;
}
}
/**
* gst_vaapi_codecs_has_codec:
* @codecs: a #GArray of #GstVaapiCodec
* @codec: a #GstVaapiCodec to find in @codec
*
* Search in the available @codecs for the specific @codec.
*
* Returns: %TRUE if @codec is in @codecs
**/
gboolean
gst_vaapi_codecs_has_codec (GArray * codecs, GstVaapiCodec codec)
{
guint i;
GstVaapiCodec c;
g_return_val_if_fail (codec, FALSE);
for (i = 0; i < codecs->len; i++) {
c = g_array_index (codecs, GstVaapiCodec, i);
if (c == codec)
return TRUE;
}
return FALSE;
}