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Add VA context abstraction.
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parent
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2 changed files with 794 additions and 0 deletions
662
gst-libs/gst/vaapi/gstvaapicontext.c
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662
gst-libs/gst/vaapi/gstvaapicontext.c
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@ -0,0 +1,662 @@
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/*
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* gstvaapicontext.c - VA context abstraction
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*
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* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* SECTION:gstvaapicontext
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* @short_description: VA context abstraction
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*/
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#include "config.h"
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#include <assert.h>
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#include "gstvaapicompat.h"
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#include "gstvaapicontext.h"
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#include "gstvaapisurfacepool.h"
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#include "gstvaapiutils.h"
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#include "gstvaapi_priv.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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G_DEFINE_TYPE(GstVaapiContext, gst_vaapi_context, GST_VAAPI_TYPE_OBJECT);
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#define GST_VAAPI_CONTEXT_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE((obj), \
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GST_VAAPI_TYPE_CONTEXT, \
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GstVaapiContextPrivate))
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/* XXX: optimize for the effective number of reference frames */
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struct _GstVaapiContextPrivate {
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VAConfigID config_id;
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GPtrArray *surfaces;
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GstVaapiVideoPool *surfaces_pool;
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GstVaapiProfile profile;
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GstVaapiEntrypoint entrypoint;
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guint width;
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guint height;
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guint is_constructed : 1;
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};
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enum {
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PROP_0,
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PROP_PROFILE,
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PROP_ENTRYPOINT,
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PROP_WIDTH,
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PROP_HEIGHT
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};
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static void
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unref_surface_cb(gpointer data, gpointer user_data)
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{
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g_object_unref(GST_VAAPI_SURFACE(data));
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}
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static void
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gst_vaapi_context_destroy_surfaces(GstVaapiContext *context)
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{
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GstVaapiContextPrivate * const priv = context->priv;
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if (priv->surfaces) {
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g_ptr_array_foreach(priv->surfaces, unref_surface_cb, NULL);
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g_ptr_array_free(priv->surfaces, TRUE);
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priv->surfaces = NULL;
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}
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if (priv->surfaces_pool) {
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g_object_unref(priv->surfaces_pool);
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priv->surfaces_pool = NULL;
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}
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}
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static void
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gst_vaapi_context_destroy(GstVaapiContext *context)
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{
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GstVaapiDisplay * const display = GST_VAAPI_OBJECT_DISPLAY(context);
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GstVaapiContextPrivate * const priv = context->priv;
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VAContextID context_id;
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VAStatus status;
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context_id = GST_VAAPI_OBJECT_ID(context);
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GST_DEBUG("context %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS(context_id));
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if (context_id != VA_INVALID_ID) {
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GST_VAAPI_DISPLAY_LOCK(display);
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status = vaDestroyContext(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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context_id
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaDestroyContext()"))
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g_warning("failed to destroy context %" GST_VAAPI_ID_FORMAT,
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GST_VAAPI_ID_ARGS(context_id));
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GST_VAAPI_OBJECT_ID(context) = VA_INVALID_ID;
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}
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if (priv->config_id != VA_INVALID_ID) {
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GST_VAAPI_DISPLAY_LOCK(display);
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status = vaDestroyConfig(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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priv->config_id
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaDestroyConfig()"))
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g_warning("failed to destroy config %" GST_VAAPI_ID_FORMAT,
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GST_VAAPI_ID_ARGS(priv->config_id));
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priv->config_id = VA_INVALID_ID;
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}
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}
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static gboolean
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gst_vaapi_context_create_surfaces(GstVaapiContext *context)
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{
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GstVaapiContextPrivate * const priv = context->priv;
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GstCaps *caps;
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GstVaapiSurface *surface;
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guint i, num_ref_frames, num_surfaces;
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/* Number of scratch surfaces beyond those used as reference */
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const guint SCRATCH_SURFACES_COUNT = 4;
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if (!priv->surfaces) {
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priv->surfaces = g_ptr_array_new();
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if (!priv->surfaces)
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return FALSE;
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}
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if (!priv->surfaces_pool) {
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caps = gst_caps_new_simple(
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"video/x-vaapi-surface",
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"width", G_TYPE_INT, priv->width,
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"height", G_TYPE_INT, priv->height,
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NULL
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);
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if (!caps)
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return FALSE;
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priv->surfaces_pool = gst_vaapi_surface_pool_new(
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GST_VAAPI_OBJECT_DISPLAY(context),
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caps
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);
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gst_caps_unref(caps);
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if (!priv->surfaces_pool)
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return FALSE;
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}
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num_ref_frames = 2;
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if (gst_vaapi_profile_get_codec(priv->profile) == GST_VAAPI_CODEC_H264)
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num_ref_frames = 16;
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num_surfaces = num_ref_frames + SCRATCH_SURFACES_COUNT;
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gst_vaapi_video_pool_set_capacity(priv->surfaces_pool, num_surfaces);
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for (i = priv->surfaces->len; i < num_surfaces; i++) {
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surface = gst_vaapi_surface_new(
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GST_VAAPI_OBJECT_DISPLAY(context),
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GST_VAAPI_CHROMA_TYPE_YUV420,
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priv->width, priv->height
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);
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if (!surface)
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return FALSE;
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g_ptr_array_add(priv->surfaces, surface);
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if (!gst_vaapi_video_pool_add_object(priv->surfaces_pool, surface))
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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gst_vaapi_context_create(GstVaapiContext *context)
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{
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GstVaapiDisplay * const display = GST_VAAPI_OBJECT_DISPLAY(context);
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GstVaapiContextPrivate * const priv = context->priv;
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VAProfile va_profile;
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VAEntrypoint va_entrypoint;
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VAConfigAttrib attrib;
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VAContextID context_id;
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VASurfaceID surface_id;
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VAStatus status;
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GArray *surfaces = NULL;
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gboolean success = FALSE;
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guint i;
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if (!priv->surfaces && !gst_vaapi_context_create_surfaces(context))
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goto end;
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surfaces = g_array_sized_new(
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FALSE,
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FALSE,
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sizeof(VASurfaceID),
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priv->surfaces->len
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);
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if (!surfaces)
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goto end;
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for (i = 0; i < priv->surfaces->len; i++) {
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GstVaapiSurface * const surface = g_ptr_array_index(priv->surfaces, i);
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if (!surface)
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goto end;
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surface_id = GST_VAAPI_OBJECT_ID(surface);
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g_array_append_val(surfaces, surface_id);
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}
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assert(surfaces->len == priv->surfaces->len);
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if (!priv->profile || !priv->entrypoint)
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goto end;
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va_profile = gst_vaapi_profile_get_va_profile(priv->profile);
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va_entrypoint = gst_vaapi_entrypoint_get_va_entrypoint(priv->entrypoint);
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GST_VAAPI_DISPLAY_LOCK(display);
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attrib.type = VAConfigAttribRTFormat;
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status = vaGetConfigAttributes(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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va_profile,
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va_entrypoint,
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&attrib, 1
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaGetConfigAttributes()"))
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goto end;
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if (!(attrib.value & VA_RT_FORMAT_YUV420))
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goto end;
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GST_VAAPI_DISPLAY_LOCK(display);
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status = vaCreateConfig(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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va_profile,
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va_entrypoint,
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&attrib, 1,
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&priv->config_id
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaCreateConfig()"))
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goto end;
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GST_VAAPI_DISPLAY_LOCK(display);
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status = vaCreateContext(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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priv->config_id,
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priv->width, priv->height,
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VA_PROGRESSIVE,
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(VASurfaceID *)surfaces->data, surfaces->len,
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&context_id
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaCreateContext()"))
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goto end;
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GST_DEBUG("context %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS(context_id));
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GST_VAAPI_OBJECT_ID(context) = context_id;
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success = TRUE;
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end:
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if (surfaces)
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g_array_free(surfaces, TRUE);
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return success;
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}
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static void
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gst_vaapi_context_finalize(GObject *object)
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{
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GstVaapiContext * const context = GST_VAAPI_CONTEXT(object);
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gst_vaapi_context_destroy(context);
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gst_vaapi_context_destroy_surfaces(context);
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G_OBJECT_CLASS(gst_vaapi_context_parent_class)->finalize(object);
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}
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static void
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gst_vaapi_context_set_property(
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GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiContext * const context = GST_VAAPI_CONTEXT(object);
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GstVaapiContextPrivate * const priv = context->priv;
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switch (prop_id) {
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case PROP_PROFILE:
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gst_vaapi_context_set_profile(context, g_value_get_uint(value));
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break;
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case PROP_ENTRYPOINT:
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priv->entrypoint = g_value_get_uint(value);
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break;
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case PROP_WIDTH:
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priv->width = g_value_get_uint(value);
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break;
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case PROP_HEIGHT:
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priv->height = g_value_get_uint(value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_context_get_property(
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GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiContext * const context = GST_VAAPI_CONTEXT(object);
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GstVaapiContextPrivate * const priv = context->priv;
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switch (prop_id) {
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case PROP_PROFILE:
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g_value_set_uint(value, gst_vaapi_context_get_profile(context));
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break;
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case PROP_ENTRYPOINT:
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g_value_set_uint(value, gst_vaapi_context_get_entrypoint(context));
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break;
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case PROP_WIDTH:
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g_value_set_uint(value, priv->width);
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break;
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case PROP_HEIGHT:
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g_value_set_uint(value, priv->height);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_context_class_init(GstVaapiContextClass *klass)
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{
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GObjectClass * const object_class = G_OBJECT_CLASS(klass);
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g_type_class_add_private(klass, sizeof(GstVaapiContextPrivate));
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object_class->finalize = gst_vaapi_context_finalize;
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object_class->set_property = gst_vaapi_context_set_property;
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object_class->get_property = gst_vaapi_context_get_property;
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g_object_class_install_property
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(object_class,
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PROP_PROFILE,
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g_param_spec_uint("profile",
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"Profile",
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"The profile used for decoding",
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0, G_MAXUINT32, 0,
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G_PARAM_READWRITE));
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g_object_class_install_property
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(object_class,
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PROP_ENTRYPOINT,
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g_param_spec_uint("entrypoint",
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"Entrypoint",
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"The decoder entrypoint",
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0, G_MAXUINT32, 0,
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property
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(object_class,
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PROP_WIDTH,
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g_param_spec_uint("width",
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"Width",
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"The width of decoded surfaces",
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0, G_MAXINT32, 0,
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property
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(object_class,
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PROP_HEIGHT,
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g_param_spec_uint("height",
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"Height",
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"The height of the decoded surfaces",
|
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0, G_MAXINT32, 0,
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G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
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}
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static void
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gst_vaapi_context_init(GstVaapiContext *context)
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{
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GstVaapiContextPrivate *priv = GST_VAAPI_CONTEXT_GET_PRIVATE(context);
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context->priv = priv;
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priv->config_id = VA_INVALID_ID;
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priv->surfaces = NULL;
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priv->surfaces_pool = NULL;
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priv->profile = 0;
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priv->entrypoint = 0;
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priv->width = 0;
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priv->height = 0;
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}
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/**
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* gst_vaapi_context_new:
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* @display: a #GstVaapiDisplay
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* @profile: a #GstVaapiProfile
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* @entrypoint: a #GstVaapiEntrypoint
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* @width: coded width from the bitstream
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* @height: coded height from the bitstream
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*
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* Creates a new #GstVaapiContext with the specified codec @profile
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* and @entrypoint.
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*
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* Return value: the newly allocated #GstVaapiContext object
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*/
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GstVaapiContext *
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gst_vaapi_context_new(
|
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GstVaapiDisplay *display,
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GstVaapiProfile profile,
|
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GstVaapiEntrypoint entrypoint,
|
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unsigned int width,
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unsigned int height
|
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)
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{
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GstVaapiContext *context;
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g_return_val_if_fail(GST_VAAPI_IS_DISPLAY(display), NULL);
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g_return_val_if_fail(profile, NULL);
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g_return_val_if_fail(entrypoint, NULL);
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g_return_val_if_fail(width > 0, NULL);
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g_return_val_if_fail(height > 0, NULL);
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context = g_object_new(
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GST_VAAPI_TYPE_CONTEXT,
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"display", display,
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"id", GST_VAAPI_ID(VA_INVALID_ID),
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"profile", profile,
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"entrypoint", entrypoint,
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"width", width,
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"height", height,
|
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NULL
|
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);
|
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if (!context->priv->is_constructed) {
|
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g_object_unref(context);
|
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return NULL;
|
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}
|
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return context;
|
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}
|
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|
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/**
|
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* gst_vaapi_context_reset:
|
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* @context: a #GstVaapiContext
|
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* @profile: a #GstVaapiProfile
|
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* @entrypoint: a #GstVaapiEntrypoint
|
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* @width: coded width from the bitstream
|
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* @height: coded height from the bitstream
|
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*
|
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* Resets @context to the specified codec @profile and @entrypoint.
|
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* The surfaces will be reallocated if the coded size changed.
|
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*
|
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* Return value: %TRUE on success
|
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*/
|
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gboolean
|
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gst_vaapi_context_reset(
|
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GstVaapiContext *context,
|
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GstVaapiProfile profile,
|
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GstVaapiEntrypoint entrypoint,
|
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unsigned int width,
|
||||
unsigned int height
|
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)
|
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{
|
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GstVaapiContextPrivate * const priv = context->priv;
|
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gboolean size_changed, codec_changed;
|
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|
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size_changed = priv->width != width || priv->height != height;
|
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if (size_changed) {
|
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gst_vaapi_context_destroy_surfaces(context);
|
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priv->width = width;
|
||||
priv->height = height;
|
||||
}
|
||||
|
||||
codec_changed = priv->profile != profile || priv->entrypoint != entrypoint;
|
||||
if (codec_changed) {
|
||||
gst_vaapi_context_destroy(context);
|
||||
priv->profile = profile;
|
||||
priv->entrypoint = entrypoint;
|
||||
}
|
||||
|
||||
if (size_changed && !gst_vaapi_context_create_surfaces(context))
|
||||
return FALSE;
|
||||
|
||||
if (codec_changed && !gst_vaapi_context_create(context))
|
||||
return FALSE;
|
||||
|
||||
priv->is_constructed = TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_get_id:
|
||||
* @context: a #GstVaapiContext
|
||||
*
|
||||
* Returns the underlying VAContextID of the @context.
|
||||
*
|
||||
* Return value: the underlying VA context id
|
||||
*/
|
||||
GstVaapiID
|
||||
gst_vaapi_context_get_id(GstVaapiContext *context)
|
||||
{
|
||||
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), VA_INVALID_ID);
|
||||
|
||||
return GST_VAAPI_OBJECT_ID(context);
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_get_profile:
|
||||
* @context: a #GstVaapiContext
|
||||
*
|
||||
* Returns the VA profile used by the @context.
|
||||
*
|
||||
* Return value: the VA profile used by the @context
|
||||
*/
|
||||
GstVaapiProfile
|
||||
gst_vaapi_context_get_profile(GstVaapiContext *context)
|
||||
{
|
||||
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), 0);
|
||||
|
||||
return context->priv->profile;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_set_profile:
|
||||
* @context: a #GstVaapiContext
|
||||
* @profile: the new #GstVaapiProfile to use
|
||||
*
|
||||
* Sets the new @profile to use with the @context. If @profile matches
|
||||
* the previous profile, this call has no effect. Otherwise, the
|
||||
* underlying VA context is recreated, while keeping the previously
|
||||
* allocated surfaces.
|
||||
*
|
||||
* Return value: %TRUE on success
|
||||
*/
|
||||
gboolean
|
||||
gst_vaapi_context_set_profile(GstVaapiContext *context, GstVaapiProfile profile)
|
||||
{
|
||||
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), FALSE);
|
||||
g_return_val_if_fail(profile, FALSE);
|
||||
|
||||
return gst_vaapi_context_reset(context,
|
||||
profile,
|
||||
context->priv->entrypoint,
|
||||
context->priv->width,
|
||||
context->priv->height);
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_get_entrypoint:
|
||||
* @context: a #GstVaapiContext
|
||||
*
|
||||
* Returns the VA entrypoint used by the @context
|
||||
*
|
||||
* Return value: the VA entrypoint used by the @context
|
||||
*/
|
||||
GstVaapiEntrypoint
|
||||
gst_vaapi_context_get_entrypoint(GstVaapiContext *context)
|
||||
{
|
||||
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), 0);
|
||||
|
||||
return context->priv->entrypoint;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_get_size:
|
||||
* @context: a #GstVaapiContext
|
||||
* @pwidth: return location for the width, or %NULL
|
||||
* @pheight: return location for the height, or %NULL
|
||||
*
|
||||
* Retrieves the size of the surfaces attached to @context.
|
||||
*/
|
||||
void
|
||||
gst_vaapi_context_get_size(
|
||||
GstVaapiContext *context,
|
||||
guint *pwidth,
|
||||
guint *pheight
|
||||
)
|
||||
{
|
||||
g_return_if_fail(GST_VAAPI_IS_CONTEXT(context));
|
||||
|
||||
if (pwidth)
|
||||
*pwidth = context->priv->width;
|
||||
|
||||
if (pheight)
|
||||
*pheight = context->priv->height;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_get_surface:
|
||||
* @context: a #GstVaapiContext
|
||||
*
|
||||
* Acquires a free surface. The returned surface but be released with
|
||||
* gst_vaapi_context_put_surface(). This function returns %NULL if
|
||||
* there is no free surface available in the pool. The surfaces are
|
||||
* pre-allocated during context creation though.
|
||||
*
|
||||
* Return value: a free surface, or %NULL if none is available
|
||||
*/
|
||||
GstVaapiSurface *
|
||||
gst_vaapi_context_get_surface(GstVaapiContext *context)
|
||||
{
|
||||
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), NULL);
|
||||
|
||||
return gst_vaapi_video_pool_get_object(context->priv->surfaces_pool);
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_put_surface:
|
||||
* @context: a #GstVaapiContext
|
||||
* @surface: the #GstVaapiSurface to release
|
||||
*
|
||||
* Releases a surface acquired by gst_vaapi_context_get_surface().
|
||||
*/
|
||||
void
|
||||
gst_vaapi_context_put_surface(GstVaapiContext *context, GstVaapiSurface *surface)
|
||||
{
|
||||
g_return_if_fail(GST_VAAPI_IS_CONTEXT(context));
|
||||
g_return_if_fail(GST_VAAPI_IS_SURFACE(surface));
|
||||
|
||||
gst_vaapi_video_pool_put_object(context->priv->surfaces_pool, surface);
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vaapi_context_find_surface_by_id:
|
||||
* @context: a #GstVaapiContext
|
||||
* @id: the VA surface id to find
|
||||
*
|
||||
* Finds VA surface by @id in the list of surfaces attached to the @context.
|
||||
*
|
||||
* Return value: the matching #GstVaapiSurface object, or %NULL if
|
||||
* none was found
|
||||
*/
|
||||
GstVaapiSurface *
|
||||
gst_vaapi_context_find_surface_by_id(GstVaapiContext *context, GstVaapiID id)
|
||||
{
|
||||
GstVaapiContextPrivate *priv;
|
||||
GstVaapiSurface *surface;
|
||||
guint i;
|
||||
|
||||
g_return_val_if_fail(GST_VAAPI_IS_CONTEXT(context), NULL);
|
||||
|
||||
priv = context->priv;
|
||||
g_return_val_if_fail(priv->surfaces, NULL);
|
||||
|
||||
for (i = 0; i < priv->surfaces->len; i++) {
|
||||
surface = g_ptr_array_index(priv->surfaces, i);
|
||||
if (GST_VAAPI_OBJECT_ID(surface) == id)
|
||||
return surface;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
132
gst-libs/gst/vaapi/gstvaapicontext.h
Normal file
132
gst-libs/gst/vaapi/gstvaapicontext.h
Normal file
|
|
@ -0,0 +1,132 @@
|
|||
/*
|
||||
* gstvaapicontext.h - VA context abstraction
|
||||
*
|
||||
* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU 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
|
||||
*/
|
||||
|
||||
#ifndef GST_VAAPI_CONTEXT_H
|
||||
#define GST_VAAPI_CONTEXT_H
|
||||
|
||||
#include <gst/vaapi/gstvaapiobject.h>
|
||||
#include <gst/vaapi/gstvaapiprofile.h>
|
||||
#include <gst/vaapi/gstvaapidisplay.h>
|
||||
#include <gst/vaapi/gstvaapisurface.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_VAAPI_TYPE_CONTEXT \
|
||||
(gst_vaapi_context_get_type())
|
||||
|
||||
#define GST_VAAPI_CONTEXT(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
|
||||
GST_VAAPI_TYPE_CONTEXT, \
|
||||
GstVaapiContext))
|
||||
|
||||
#define GST_VAAPI_CONTEXT_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass), \
|
||||
GST_VAAPI_TYPE_CONTEXT, \
|
||||
GstVaapiContextClass))
|
||||
|
||||
#define GST_VAAPI_IS_CONTEXT(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_CONTEXT))
|
||||
|
||||
#define GST_VAAPI_IS_CONTEXT_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_CONTEXT))
|
||||
|
||||
#define GST_VAAPI_CONTEXT_GET_CLASS(obj) \
|
||||
(G_TYPE_INSTANCE_GET_CLASS((obj), \
|
||||
GST_VAAPI_TYPE_CONTEXT, \
|
||||
GstVaapiContextClass))
|
||||
|
||||
typedef struct _GstVaapiContext GstVaapiContext;
|
||||
typedef struct _GstVaapiContextPrivate GstVaapiContextPrivate;
|
||||
typedef struct _GstVaapiContextClass GstVaapiContextClass;
|
||||
|
||||
/**
|
||||
* GstVaapiContext:
|
||||
*
|
||||
* A VA context wrapper.
|
||||
*/
|
||||
struct _GstVaapiContext {
|
||||
/*< private >*/
|
||||
GstVaapiObject parent_instance;
|
||||
|
||||
GstVaapiContextPrivate *priv;
|
||||
};
|
||||
|
||||
/**
|
||||
* GstVaapiContextClass:
|
||||
*
|
||||
* A VA context wrapper class.
|
||||
*/
|
||||
struct _GstVaapiContextClass {
|
||||
/*< private >*/
|
||||
GstVaapiObjectClass parent_class;
|
||||
};
|
||||
|
||||
GType
|
||||
gst_vaapi_context_get_type(void);
|
||||
|
||||
GstVaapiContext *
|
||||
gst_vaapi_context_new(
|
||||
GstVaapiDisplay *display,
|
||||
GstVaapiProfile profile,
|
||||
GstVaapiEntrypoint entrypoint,
|
||||
guint width,
|
||||
guint height
|
||||
);
|
||||
|
||||
gboolean
|
||||
gst_vaapi_context_reset(
|
||||
GstVaapiContext *context,
|
||||
GstVaapiProfile profile,
|
||||
GstVaapiEntrypoint entrypoint,
|
||||
unsigned int width,
|
||||
unsigned int height
|
||||
);
|
||||
|
||||
GstVaapiID
|
||||
gst_vaapi_context_get_id(GstVaapiContext *context);
|
||||
|
||||
GstVaapiProfile
|
||||
gst_vaapi_context_get_profile(GstVaapiContext *context);
|
||||
|
||||
gboolean
|
||||
gst_vaapi_context_set_profile(GstVaapiContext *context, GstVaapiProfile profile);
|
||||
|
||||
GstVaapiEntrypoint
|
||||
gst_vaapi_context_get_entrypoint(GstVaapiContext *context);
|
||||
|
||||
void
|
||||
gst_vaapi_context_get_size(
|
||||
GstVaapiContext *context,
|
||||
guint *pwidth,
|
||||
guint *pheight
|
||||
);
|
||||
|
||||
GstVaapiSurface *
|
||||
gst_vaapi_context_get_surface(GstVaapiContext *context);
|
||||
|
||||
void
|
||||
gst_vaapi_context_put_surface(GstVaapiContext *context, GstVaapiSurface *surface);
|
||||
|
||||
GstVaapiSurface *
|
||||
gst_vaapi_context_find_surface_by_id(GstVaapiContext *context, GstVaapiID id);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* GST_VAAPI_CONTEXT_H */
|
||||
Loading…
Reference in a new issue