gstreamer/gst/vaapi/gstvaapipluginutil.c

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/*
* gstvaapipluginutil.h - VA-API plugin helpers
*
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* 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
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#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",
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#if USE_WAYLAND
"wl-display",
"wl-display-name",
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#endif
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#if USE_X11
"x11-display",
"x11-display-name",
#endif
#if USE_DRM
"drm-device",
"drm-device-path",
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#endif
NULL
};
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[] = {
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#if USE_WAYLAND
{"wayland",
GST_VAAPI_DISPLAY_TYPE_WAYLAND,
gst_vaapi_display_wayland_new,
(GstVaapiDisplayCreateFromHandleFunc)
gst_vaapi_display_wayland_new_with_display},
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#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;
}
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;
}
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));
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:
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
}
break;
}
default:
display_type = GST_VAAPI_DISPLAY_TYPE_ANY;
break;
}
if (!display_type)
return NULL;
display = gst_vaapi_create_display_from_handle (display_type, native_display);
if (!display)
return NULL;
switch (gst_gl_context_get_gl_platform (gl_context)) {
#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)
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;
}
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);
gst_vaapi_video_context_prepare (element, display_types);
/* Neighbour found and it updated the display */
if (gst_vaapi_plugin_base_has_display_type (plugin, type))
return TRUE;
/* 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_PLUGIN_BASE_DISPLAY_REPLACE (plugin, display);
gst_vaapi_display_unref (display);
return TRUE;
}
gboolean
gst_vaapi_reply_to_query (GstQuery * query, GstVaapiDisplay * display)
{
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;
}
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;
}
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);
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g_value_unset (&v_formats);
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;
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);
return caps;
}
static GstCaps *
new_gl_texture_upload_meta_caps (void)
{
return gst_caps_from_string (GST_VIDEO_CAPS_MAKE_WITH_FEATURES (
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META, "{ RGBA, BGRA }"));
}
GstVaapiCapsFeature
gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstVideoFormat format,
GstVideoFormat * out_format_ptr)
{
GstVaapiCapsFeature feature = GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY;
guint i, num_structures;
GstCaps *caps = NULL;
GstCaps *gl_texture_upload_caps = NULL;
GstCaps *sysmem_caps = NULL;
GstCaps *vaapi_caps = NULL;
GstCaps *out_caps;
GstVideoFormat out_format;
vaapidecode: delayed src caps negotiation Currently the src caps are set immediately after the sink caps are set, but in that moment the pipeline might not fully constructed and the video sink has not negotiated its supported caps and features. As a consequence, in many cases of playback, the least optimized caps feature is forced. This is partially the responsible of bug #744039. Also, vaapidecode doesn't attend the reconfigure events from downstream, which is a problem too, since the video sink can be changed with different caps features. This patch delays the src caps, setting them until the first frame arrives to the decoder, assuming until that very moment the whole pipeline is already negotiated. Particularly, it checks if the src pad needs to be reconfigured, as a consequence of a reconfiguration event from downstream. A key part of this patch is the new GstVaapiCapsFeature GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED, which is returned when the src pad doesn't have a peer yet. Also, for a better report of the caps allowed through the src pad and its peer, this patch uses gst_pad_get_allowed_caps() instead of gst_pad_peer_query_caps() when looking for the preferred feature. v3: move the input_state unref to close(), since videodecoder resets at some events such as navigation. v4: a) the state_changed() callback replaces the input_state if the media changed, so this case is also handled. b) since the parameter ref_state in gst_vaapidecode_update_src_caps() is always the input_state, the parameter were removed. c) there were a lot of repeated code handling the input_state, so I refactored it with the function gst_vaapi_decode_input_state_replace(). https://bugzilla.gnome.org/show_bug.cgi?id=744618 Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com> Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
2015-02-26 10:24:55 +00:00
out_caps= gst_pad_get_allowed_caps (pad);
if (!out_caps) {
feature = GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED;
goto cleanup;
vaapidecode: delayed src caps negotiation Currently the src caps are set immediately after the sink caps are set, but in that moment the pipeline might not fully constructed and the video sink has not negotiated its supported caps and features. As a consequence, in many cases of playback, the least optimized caps feature is forced. This is partially the responsible of bug #744039. Also, vaapidecode doesn't attend the reconfigure events from downstream, which is a problem too, since the video sink can be changed with different caps features. This patch delays the src caps, setting them until the first frame arrives to the decoder, assuming until that very moment the whole pipeline is already negotiated. Particularly, it checks if the src pad needs to be reconfigured, as a consequence of a reconfiguration event from downstream. A key part of this patch is the new GstVaapiCapsFeature GST_VAAPI_CAPS_FEATURE_NOT_NEGOTIATED, which is returned when the src pad doesn't have a peer yet. Also, for a better report of the caps allowed through the src pad and its peer, this patch uses gst_pad_get_allowed_caps() instead of gst_pad_peer_query_caps() when looking for the preferred feature. v3: move the input_state unref to close(), since videodecoder resets at some events such as navigation. v4: a) the state_changed() callback replaces the input_state if the media changed, so this case is also handled. b) since the parameter ref_state in gst_vaapidecode_update_src_caps() is always the input_state, the parameter were removed. c) there were a lot of repeated code handling the input_state, so I refactored it with the function gst_vaapi_decode_input_state_replace(). https://bugzilla.gnome.org/show_bug.cgi?id=744618 Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com> Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
2015-02-26 10:24:55 +00:00
}
out_format = format == GST_VIDEO_FORMAT_ENCODED ?
GST_VIDEO_FORMAT_I420 : format;
gl_texture_upload_caps = new_gl_texture_upload_meta_caps ();
if (!gl_texture_upload_caps)
goto cleanup;
vaapi_caps =
gst_vaapi_video_format_new_template_caps_with_features (out_format,
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE);
if (!vaapi_caps)
goto cleanup;
sysmem_caps =
gst_vaapi_video_format_new_template_caps_with_features (out_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
}
if (out_format_ptr) {
if (feature == GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META) {
GstStructure *structure;
gchar *format_str;
out_format = GST_VIDEO_FORMAT_UNKNOWN;
do {
caps = gst_caps_intersect_full (out_caps, gl_texture_upload_caps,
GST_CAPS_INTERSECT_FIRST);
if (!caps)
break;
structure = gst_caps_get_structure (caps, 0);
if (!structure)
break;
if (!gst_structure_get (structure, "format", G_TYPE_STRING,
&format_str, NULL))
break;
out_format = gst_video_format_from_string (format_str);
g_free (format_str);
} while (0);
if (!out_format)
goto cleanup;
}
*out_format_ptr = out_format;
}
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);
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;
}
/* Checks whether the supplied caps contain VA surfaces */
gboolean
gst_caps_has_vaapi_surface (GstCaps * caps)
{
gboolean found_caps = FALSE;
guint i, num_structures;
g_return_val_if_fail (caps != NULL, FALSE);
num_structures = gst_caps_get_size (caps);
if (num_structures < 1)
return FALSE;
for (i = 0; i < num_structures && !found_caps; i++) {
GstCapsFeatures *const features = gst_caps_get_features (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
found_caps = gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE);
}
return found_caps;
}
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);
vip->interlace_mode = vi.interlace_mode;
vip->flags = vi.flags;
vip->views = vi.views;
vip->par_n = vi.par_n;
vip->par_d = vi.par_d;
vip->fps_n = vi.fps_n;
vip->fps_d = vi.fps_d;
}