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132d78ad3e
Implement GstSurfaceMeta API for GStreamer 1.0.x. Even though this is an unstable/deprecated API, this makes it possible to support Clutter sink with minimal changes. Tested against clutter-gst 1.9.92.
314 lines
8.8 KiB
C
314 lines
8.8 KiB
C
/*
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* gstvaapivideobuffer.c - Gstreamer/VA video buffer
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Copyright (C) 2011-2013 Intel Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapivideobuffer
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* @short_description: VA video buffer for GStreamer
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*/
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#include "gst/vaapi/sysdeps.h"
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#include "gstvaapivideobuffer.h"
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#if USE_GLX
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# include "gstvaapivideoconverter_glx.h"
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#endif
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#if GST_CHECK_VERSION(1,0,0)
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#include <gst/video/gstsurfacemeta.h>
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#define GST_VAAPI_SURFACE_META_CAST(obj) \
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((GstVaapiSurfaceMeta *)(obj))
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typedef struct _GstVaapiSurfaceMeta GstVaapiSurfaceMeta;
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struct _GstVaapiSurfaceMeta {
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GstSurfaceMeta base;
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GstBuffer *buffer;
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};
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#define GST_VAAPI_SURFACE_META_INFO gst_vaapi_surface_meta_get_info()
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static const GstMetaInfo *
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gst_vaapi_surface_meta_get_info(void);
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typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
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GstSurfaceMeta *meta, const gchar *type, GValue *dest);
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#if USE_GLX
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static GstSurfaceConverter *
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gst_vaapi_surface_create_converter_glx(GstSurfaceMeta *base_meta,
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const gchar *type, GValue *dest)
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{
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GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
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return gst_vaapi_video_converter_glx_new(meta->buffer, type, dest);
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}
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#undef gst_vaapi_video_converter_glx_new
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#define gst_vaapi_video_converter_glx_new \
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gst_vaapi_surface_create_converter_glx
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#endif
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static GstSurfaceConverter *
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gst_vaapi_surface_create_converter(GstSurfaceMeta *base_meta,
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const gchar *type, GValue *dest)
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{
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GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
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GstVaapiVideoMeta * const vmeta =
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gst_buffer_get_vaapi_video_meta(meta->buffer);
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GstSurfaceConverterCreateFunc func;
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if (G_UNLIKELY(!vmeta))
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return NULL;
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func = (GstSurfaceConverterCreateFunc)
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gst_vaapi_video_meta_get_surface_converter(vmeta);
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return func ? func(base_meta, type, dest) : NULL;
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}
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static gboolean
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gst_vaapi_surface_meta_init(GstVaapiSurfaceMeta *meta, gpointer params,
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GstBuffer *buffer)
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{
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meta->base.create_converter = gst_vaapi_surface_create_converter;
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meta->buffer = buffer;
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return TRUE;
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}
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static void
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gst_vaapi_surface_meta_free(GstVaapiSurfaceMeta *meta, GstBuffer *buffer)
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{
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}
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static gboolean
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gst_vaapi_surface_meta_transform(GstBuffer *dst_buffer, GstMeta *meta,
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GstBuffer *src_buffer, GQuark type, gpointer data)
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{
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GstVaapiVideoMeta * const src_vmeta =
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gst_buffer_get_vaapi_video_meta(src_buffer);
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if (GST_META_TRANSFORM_IS_COPY(type)) {
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GstVaapiSurfaceMeta * const dst_smeta = GST_VAAPI_SURFACE_META_CAST(
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gst_buffer_add_meta(dst_buffer, GST_VAAPI_SURFACE_META_INFO, NULL));
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/* Note: avoid meta lookups in gst_vaapi_surface_create_converter()
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by directly calling the GstVaapiVideoMeta::surface_converter hook */
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dst_smeta->base.create_converter = (GstSurfaceConverterCreateFunc)
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gst_vaapi_video_meta_get_surface_converter(src_vmeta);
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return TRUE;
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}
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return FALSE;
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}
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const GstMetaInfo *
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gst_vaapi_surface_meta_get_info(void)
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{
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static gsize g_meta_info;
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if (g_once_init_enter(&g_meta_info)) {
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gsize meta_info = GPOINTER_TO_SIZE(gst_meta_register(
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GST_SURFACE_META_API_TYPE,
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"GstVaapiSurfaceMeta", sizeof(GstVaapiSurfaceMeta),
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(GstMetaInitFunction)gst_vaapi_surface_meta_init,
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(GstMetaFreeFunction)gst_vaapi_surface_meta_free,
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(GstMetaTransformFunction)gst_vaapi_surface_meta_transform));
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g_once_init_leave(&g_meta_info, meta_info);
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}
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return GSIZE_TO_POINTER(g_meta_info);
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}
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static GstBuffer *
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gst_surface_buffer_new(void)
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{
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GstBuffer * const buffer = gst_buffer_new();
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if (buffer)
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gst_buffer_add_meta(buffer, GST_VAAPI_SURFACE_META_INFO, NULL);
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return buffer;
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}
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#else
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#include <gst/video/gstsurfacebuffer.h>
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#define GST_VAAPI_TYPE_VIDEO_BUFFER \
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(gst_vaapi_video_buffer_get_type())
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#define GST_VAAPI_VIDEO_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), \
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GST_VAAPI_TYPE_VIDEO_BUFFER, \
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GstVaapiVideoBuffer))
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#define GST_VAAPI_VIDEO_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), \
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GST_VAAPI_TYPE_VIDEO_BUFFER, \
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GstVaapiVideoBufferClass))
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#define GST_VAAPI_IS_VIDEO_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_VIDEO_BUFFER))
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#define GST_VAAPI_IS_VIDEO_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_VIDEO_BUFFER))
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#define GST_VAAPI_VIDEO_BUFFER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj), \
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GST_VAAPI_TYPE_VIDEO_BUFFER, \
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GstVaapiVideoBufferClass))
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typedef struct _GstVaapiVideoBufferClass GstVaapiVideoBufferClass;
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/**
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* GstVaapiVideoBuffer:
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*
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* A #GstBuffer holding video objects (#GstVaapiSurface and #GstVaapiImage).
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*/
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struct _GstVaapiVideoBuffer {
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/*< private >*/
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GstSurfaceBuffer parent_instance;
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GstVaapiVideoMeta *meta;
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};
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/**
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* GstVaapiVideoBufferClass:
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*
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* A #GstBuffer holding video objects
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*/
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struct _GstVaapiVideoBufferClass {
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/*< private >*/
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GstSurfaceBufferClass parent_class;
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};
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GType
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gst_vaapi_video_buffer_get_type(void) G_GNUC_CONST;
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G_DEFINE_TYPE(GstVaapiVideoBuffer,
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gst_vaapi_video_buffer,
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GST_TYPE_SURFACE_BUFFER)
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typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
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GstSurfaceBuffer *surface, const gchar *type, GValue *dest);
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static GstSurfaceConverter *
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gst_vaapi_video_buffer_create_converter(GstSurfaceBuffer *surface,
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const gchar *type, GValue *dest)
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{
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GstVaapiVideoBuffer * const vbuffer = GST_VAAPI_VIDEO_BUFFER(surface);
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GstSurfaceConverterCreateFunc func;
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func = (GstSurfaceConverterCreateFunc)
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gst_vaapi_video_meta_get_surface_converter(vbuffer->meta);
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return func ? func(surface, type, dest) : NULL;
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}
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static void
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gst_vaapi_video_buffer_class_init(GstVaapiVideoBufferClass *klass)
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{
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GstSurfaceBufferClass * const surface_class =
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GST_SURFACE_BUFFER_CLASS(klass);
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surface_class->create_converter = gst_vaapi_video_buffer_create_converter;
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}
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static void
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gst_vaapi_video_buffer_init(GstVaapiVideoBuffer *buffer)
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{
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}
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static inline GstBuffer *
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gst_surface_buffer_new(void)
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{
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return GST_BUFFER_CAST(gst_mini_object_new(GST_TYPE_SURFACE_BUFFER));
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}
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#endif
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static GFunc
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get_surface_converter(GstVaapiDisplay *display)
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{
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GFunc func;
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switch (gst_vaapi_display_get_display_type(display)) {
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#if USE_GLX
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case GST_VAAPI_DISPLAY_TYPE_GLX:
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func = (GFunc)gst_vaapi_video_converter_glx_new;
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break;
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#endif
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default:
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func = NULL;
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break;
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}
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return func;
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}
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static GstBuffer *
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new_vbuffer(GstVaapiVideoMeta *meta)
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{
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GstBuffer *buffer;
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g_return_val_if_fail(meta != NULL, NULL);
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gst_vaapi_video_meta_set_surface_converter(meta,
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get_surface_converter(gst_vaapi_video_meta_get_display(meta)));
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buffer = gst_surface_buffer_new();
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if (buffer)
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gst_buffer_set_vaapi_video_meta(buffer, meta);
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gst_vaapi_video_meta_unref(meta);
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return buffer;
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}
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GstBuffer *
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gst_vaapi_video_buffer_new(GstVaapiVideoMeta *meta)
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{
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g_return_val_if_fail(meta != NULL, NULL);
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return new_vbuffer(gst_vaapi_video_meta_ref(meta));
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}
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GstBuffer *
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gst_vaapi_video_buffer_new_from_pool(GstVaapiVideoPool *pool)
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{
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return new_vbuffer(gst_vaapi_video_meta_new_from_pool(pool));
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}
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GstBuffer *
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gst_vaapi_video_buffer_new_from_buffer(GstBuffer *buffer)
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{
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GstVaapiVideoMeta * const meta = gst_buffer_get_vaapi_video_meta(buffer);
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return meta ? new_vbuffer(gst_vaapi_video_meta_ref(meta)) : NULL;
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}
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GstBuffer *
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gst_vaapi_video_buffer_new_with_image(GstVaapiImage *image)
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{
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return new_vbuffer(gst_vaapi_video_meta_new_with_image(image));
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}
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GstBuffer *
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gst_vaapi_video_buffer_new_with_surface(GstVaapiSurface *surface)
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{
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return new_vbuffer(gst_vaapi_video_meta_new_with_surface(surface));
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}
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GstBuffer *
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gst_vaapi_video_buffer_new_with_surface_proxy(GstVaapiSurfaceProxy *proxy)
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{
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return new_vbuffer(gst_vaapi_video_meta_new_with_surface_proxy(proxy));
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}
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