diff options
Diffstat (limited to 'gst/vaapi/gstvaapivideomemory.c')
| -rw-r--r-- | gst/vaapi/gstvaapivideomemory.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/gst/vaapi/gstvaapivideomemory.c b/gst/vaapi/gstvaapivideomemory.c new file mode 100644 index 00000000..d016c127 --- /dev/null +++ b/gst/vaapi/gstvaapivideomemory.c @@ -0,0 +1,177 @@ +/* + * gstvaapivideomemory.c - Gstreamer/VA video memory + * + * Copyright (C) 2013 Intel Corporation + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2.1 + * of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA + */ + +#include "gst/vaapi/sysdeps.h" +#include "gstvaapivideomemory.h" + +GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapivideomemory); +#define GST_CAT_DEFAULT gst_debug_vaapivideomemory + +/* ------------------------------------------------------------------------ */ +/* --- GstVaapiVideoMemory --- */ +/* ------------------------------------------------------------------------ */ + +GstMemory * +gst_vaapi_video_memory_new(GstAllocator *base_allocator, + GstVaapiVideoMeta *meta) +{ + GstVaapiVideoAllocator * const allocator = + GST_VAAPI_VIDEO_ALLOCATOR_CAST(base_allocator); + const GstVideoInfo *vip; + GstVaapiVideoMemory *mem; + + mem = g_slice_new(GstVaapiVideoMemory); + if (!mem) + return NULL; + + vip = &allocator->video_info; + gst_memory_init(&mem->parent_instance, 0, base_allocator, NULL, + GST_VIDEO_INFO_SIZE(vip), 0, 0, GST_VIDEO_INFO_SIZE(vip)); + + mem->meta = gst_vaapi_video_meta_ref(meta); + return GST_MEMORY_CAST(mem); +} + +static void +gst_vaapi_video_memory_free(GstVaapiVideoMemory *mem) +{ + gst_vaapi_video_meta_unref(mem->meta); + g_slice_free(GstVaapiVideoMemory, mem); +} + +static gpointer +gst_vaapi_video_memory_map(GstVaapiVideoMemory *mem, gsize maxsize, guint flags) +{ + GST_FIXME("unimplemented GstVaapiVideoAllocator::mem_map() hook"); + return NULL; +} + +static void +gst_vaapi_video_memory_unmap(GstVaapiVideoMemory *mem) +{ + GST_FIXME("unimplemented GstVaapiVideoAllocator::mem_unmap() hook"); +} + +static GstVaapiVideoMemory * +gst_vaapi_video_memory_copy(GstVaapiVideoMemory *mem, + gssize offset, gssize size) +{ + GST_FIXME("unimplemented GstVaapiVideoAllocator::mem_copy() hook"); + return NULL; +} + +static GstVaapiVideoMemory * +gst_vaapi_video_memory_share(GstVaapiVideoMemory *mem, + gssize offset, gssize size) +{ + GST_FIXME("unimplemented GstVaapiVideoAllocator::mem_share() hook"); + return NULL; +} + +static gboolean +gst_vaapi_video_memory_is_span(GstVaapiVideoMemory *mem1, + GstVaapiVideoMemory *mem2, gsize *offset_ptr) +{ + GST_FIXME("unimplemented GstVaapiVideoAllocator::mem_is_span() hook"); + return FALSE; +} + +/* ------------------------------------------------------------------------ */ +/* --- GstVaapiVideoAllocator --- */ +/* ------------------------------------------------------------------------ */ + +#define GST_VAAPI_VIDEO_ALLOCATOR_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass), \ + GST_VAAPI_TYPE_VIDEO_ALLOCATOR, \ + GstVaapiVideoAllocatorClass)) + +#define GST_VAAPI_IS_VIDEO_ALLOCATOR_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_VIDEO_ALLOCATOR)) + +G_DEFINE_TYPE(GstVaapiVideoAllocator, + gst_vaapi_video_allocator, + GST_TYPE_ALLOCATOR) + +static GstMemory * +gst_vaapi_video_allocator_alloc(GstAllocator *allocator, gsize size, + GstAllocationParams *params) +{ + g_warning("use gst_vaapi_video_memory_new() to allocate from " + "GstVaapiVideoMemory allocator"); + + return NULL; +} + +static void +gst_vaapi_video_allocator_free(GstAllocator *allocator, GstMemory *mem) +{ + gst_vaapi_video_memory_free(GST_VAAPI_VIDEO_MEMORY_CAST(mem)); +} + +static void +gst_vaapi_video_allocator_class_init(GstVaapiVideoAllocatorClass *klass) +{ + GstAllocatorClass * const allocator_class = GST_ALLOCATOR_CLASS(klass); + + GST_DEBUG_CATEGORY_INIT(gst_debug_vaapivideomemory, + "vaapivideomemory", 0, "VA-API video memory allocator"); + + allocator_class->alloc = gst_vaapi_video_allocator_alloc; + allocator_class->free = gst_vaapi_video_allocator_free; +} + +static void +gst_vaapi_video_allocator_init(GstVaapiVideoAllocator *allocator) +{ + GstAllocator * const base_allocator = GST_ALLOCATOR_CAST(allocator); + + base_allocator->mem_type = GST_VAAPI_VIDEO_MEMORY_NAME; + base_allocator->mem_map = (GstMemoryMapFunction) + gst_vaapi_video_memory_map; + base_allocator->mem_unmap = (GstMemoryUnmapFunction) + gst_vaapi_video_memory_unmap; + base_allocator->mem_copy = (GstMemoryCopyFunction) + gst_vaapi_video_memory_copy; + base_allocator->mem_share = (GstMemoryShareFunction) + gst_vaapi_video_memory_share; + base_allocator->mem_is_span = (GstMemoryIsSpanFunction) + gst_vaapi_video_memory_is_span; +} + +GstAllocator * +gst_vaapi_video_allocator_new(GstVaapiDisplay *display, GstCaps *caps) +{ + GstVaapiVideoAllocator *allocator; + GstVideoInfo *vip; + + g_return_val_if_fail(GST_VAAPI_IS_DISPLAY(display), NULL); + g_return_val_if_fail(GST_IS_CAPS(caps), NULL); + + allocator = g_object_new(GST_VAAPI_TYPE_VIDEO_ALLOCATOR, NULL); + if (!allocator) + return NULL; + + vip = &allocator->video_info; + gst_video_info_init(vip); + gst_video_info_from_caps(vip, caps); + + return GST_ALLOCATOR_CAST(allocator); +} |