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plugins: implement direct-rendering mode for raw YUV buffer uploads.

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Allow direct-rendering (writes) into target VA surfaces.
This commit is contained in:
Gwenole Beauchesne 2013-04-10 14:37:42 +02:00
parent c698a015a3
commit 3f15a682ea
2 changed files with 38 additions and 2 deletions
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38
gst/vaapi/gstvaapivideomemory.c
View file

@ -50,6 +50,14 @@ new_image(GstVaapiDisplay *display, const GstVideoInfo *vip)
static gboolean
ensure_image(GstVaapiVideoMemory *mem)
{
if (!mem->image && mem->use_direct_rendering) {
mem->image = gst_vaapi_surface_derive_image(mem->surface);
if (!mem->image) {
GST_WARNING("failed to derive image, fallbacking to copy");
mem->use_direct_rendering = FALSE;
}
}
if (!mem->image) {
GstVaapiDisplay * const display =
gst_vaapi_video_meta_get_display(mem->meta);
@ -164,7 +172,7 @@ gst_video_meta_unmap_vaapi_memory(GstVideoMeta *meta, guint plane,
gst_vaapi_image_unmap(mem->image);
/* Commit VA image to surface */
if (info->flags & GST_MAP_WRITE) {
if ((info->flags & GST_MAP_WRITE) && !mem->use_direct_rendering) {
if (!gst_vaapi_surface_put_image(mem->surface, mem->image))
goto error_upload_image;
}
@ -202,6 +210,7 @@ gst_vaapi_video_memory_new(GstAllocator *base_allocator,
mem->image = NULL;
mem->meta = gst_vaapi_video_meta_ref(meta);
mem->map_count = 0;
mem->use_direct_rendering = allocator->has_direct_rendering;
return GST_MEMORY_CAST(mem);
}
@ -354,6 +363,7 @@ gst_vaapi_video_allocator_new(GstVaapiDisplay *display, GstCaps *caps)
{
GstVaapiVideoAllocator *allocator;
GstVideoInfo *vip;
GstVaapiSurface *surface;
GstVaapiImage *image;
g_return_val_if_fail(GST_VAAPI_IS_DISPLAY(display), NULL);
@ -370,12 +380,36 @@ gst_vaapi_video_allocator_new(GstVaapiDisplay *display, GstCaps *caps)
gst_video_info_set_format(&allocator->surface_info, GST_VIDEO_FORMAT_NV12,
GST_VIDEO_INFO_WIDTH(vip), GST_VIDEO_INFO_HEIGHT(vip));
if (GST_VIDEO_INFO_FORMAT(vip) != GST_VIDEO_FORMAT_ENCODED) {
image = NULL;
do {
surface = new_surface(display, vip);
if (!surface)
break;
image = gst_vaapi_surface_derive_image(surface);
if (!image)
break;
if (!gst_vaapi_image_map(image))
break;
allocator->has_direct_rendering = gst_video_info_update_from_image(
&allocator->surface_info, image);
gst_vaapi_image_unmap(image);
GST_INFO("has direct-rendering for %s surfaces: %s",
GST_VIDEO_INFO_FORMAT_STRING(&allocator->surface_info),
allocator->has_direct_rendering ? "yes" : "no");
} while (0);
g_clear_object(&surface);
g_clear_object(&image);
}
allocator->image_info = *vip;
if (GST_VIDEO_INFO_FORMAT(vip) == GST_VIDEO_FORMAT_ENCODED)
gst_video_info_set_format(&allocator->image_info, GST_VIDEO_FORMAT_NV12,
GST_VIDEO_INFO_WIDTH(vip), GST_VIDEO_INFO_HEIGHT(vip));
if (1) {
if (allocator->has_direct_rendering)
allocator->image_info = allocator->surface_info;
else {
do {
image = new_image(display, &allocator->image_info);
if (!image)

2
gst/vaapi/gstvaapivideomemory.h
View file

@ -58,6 +58,7 @@ struct _GstVaapiVideoMemory {
GstVaapiImage *image;
GstVaapiVideoMeta *meta;
gint map_count;
gboolean use_direct_rendering;
};
G_GNUC_INTERNAL
@ -106,6 +107,7 @@ struct _GstVaapiVideoAllocator {
GstVideoInfo video_info;
GstVideoInfo surface_info;
GstVideoInfo image_info;
gboolean has_direct_rendering;
};
/**