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Add vaDeriveImage() optimization.

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This commit is contained in:
gb 2010-03-18 15:53:50 +00:00
parent 55b45d964d
commit 72cdf85977
2 changed files with 42 additions and 6 deletions
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46
sys/vaapiconvert/gstvaapiconvert.c
View file

@ -195,6 +195,8 @@ gst_vaapiconvert_init(GstVaapiConvert *convert, GstVaapiConvertClass *klass)
convert->surface_height = 0;
convert->can_use_inout_buffers = FALSE;
convert->use_inout_buffers = FALSE;
convert->can_use_derive_image = FALSE;
convert->use_derive_image = FALSE;
/* Override buffer allocator on sink pad */
sinkpad = gst_element_get_static_pad(GST_ELEMENT(convert), "sink");
@ -267,7 +269,8 @@ gst_vaapiconvert_transform(
if (!gst_vaapi_image_unmap(image))
return GST_FLOW_UNEXPECTED;
gst_vaapi_surface_put_image(surface, image);
if (!convert->use_derive_image)
gst_vaapi_surface_put_image(surface, image);
return GST_FLOW_OK;
}
@ -374,6 +377,8 @@ static gboolean
gst_vaapiconvert_ensure_surface_pool(GstVaapiConvert *convert, GstCaps *caps)
{
GstStructure * const structure = gst_caps_get_structure(caps, 0);
GstVaapiSurface *surface;
GstVaapiImage *image;
gint width, height;
gst_structure_get_int(structure, "width", &width);
@ -387,6 +392,20 @@ gst_vaapiconvert_ensure_surface_pool(GstVaapiConvert *convert, GstCaps *caps)
convert->surfaces = gst_vaapi_surface_pool_new(convert->display, caps);
if (!convert->surfaces)
return FALSE;
/* Check if we can access to the surface pixels directly */
surface = gst_vaapi_video_pool_get_object(convert->surfaces);
if (surface) {
image = gst_vaapi_surface_derive_image(surface);
if (image) {
if (gst_vaapi_image_map(image)) {
convert->can_use_derive_image = TRUE;
gst_vaapi_image_unmap(image);
}
g_object_unref(image);
}
gst_vaapi_video_pool_put_object(convert->surfaces, surface);
}
}
return TRUE;
}
@ -408,6 +427,12 @@ gst_vaapiconvert_negotiate_buffers(
GST_DEBUG("use-inout-buffers: %spossible, %s",
convert->can_use_inout_buffers ? "" : "not ",
convert->use_inout_buffers ? "enabled" : "disabled");
convert->use_derive_image =
convert->use_inout_buffers && convert->can_use_derive_image;
GST_DEBUG("use-derive-image: %spossible, %s",
convert->can_use_derive_image ? "" : "not ",
convert->use_derive_image ? "enabled" : "disabled");
return TRUE;
}
@ -457,7 +482,7 @@ gst_vaapiconvert_buffer_alloc(
{
GstVaapiConvert * const convert = GST_VAAPICONVERT(trans);
GstBuffer *buffer = NULL;
GstVaapiImage *image;
GstVaapiImage *image = NULL;
/* Check if we can use the inout-buffers optimization */
if (!gst_vaapiconvert_negotiate_buffers(convert, caps, caps))
@ -470,10 +495,19 @@ gst_vaapiconvert_buffer_alloc(
goto error;
GstVaapiVideoBuffer * const vbuffer = GST_VAAPI_VIDEO_BUFFER(buffer);
if (!gst_vaapi_video_buffer_set_image_from_pool(vbuffer, convert->images))
goto error;
image = gst_vaapi_video_buffer_get_image(vbuffer);
if (convert->use_derive_image) {
GstVaapiSurface *surface = gst_vaapi_video_buffer_get_surface(vbuffer);
image = gst_vaapi_surface_derive_image(surface);
if (image)
gst_vaapi_video_buffer_set_image(vbuffer, image);
else /* We can't use the derive-image optimization. Disable it. */
convert->use_derive_image = FALSE;
}
if (!image) {
if (!gst_vaapi_video_buffer_set_image_from_pool(vbuffer, convert->images))
goto error;
image = gst_vaapi_video_buffer_get_image(vbuffer);
}
g_assert(image);
if (!gst_vaapi_image_map(image))

2
sys/vaapiconvert/gstvaapiconvert.h
View file

@ -73,6 +73,8 @@ struct _GstVaapiConvert {
guint surface_height;
guint can_use_inout_buffers : 1;
guint use_inout_buffers : 1;
guint can_use_derive_image : 1;
guint use_derive_image : 1;
};
struct _GstVaapiConvertClass {