/*
* gstvaapiimage.c - VA image abstraction
*
- * gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
+ * Copyright (C) 2010-2011 Splitted-Desktop Systems
+ * Copyright (C) 2011 Intel Corporation
*
- * 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 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 program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 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
+ * 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
*/
/**
} while (0)
static gboolean
-_gst_vaapi_image_map(GstVaapiImage *image);
+_gst_vaapi_image_map(GstVaapiImage *image, GstVaapiImageRaw *raw_image);
static gboolean
_gst_vaapi_image_unmap(GstVaapiImage *image);
break;
}
case PROP_FORMAT:
- priv->format = g_value_get_uint(value);
+ if (priv->create_image)
+ priv->format = g_value_get_uint(value);
break;
case PROP_WIDTH:
- priv->width = g_value_get_uint(value);
+ if (priv->create_image)
+ priv->width = g_value_get_uint(value);
break;
case PROP_HEIGHT:
- priv->height = g_value_get_uint(value);
+ if (priv->create_image)
+ priv->height = g_value_get_uint(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
g_return_val_if_fail(GST_VAAPI_IS_IMAGE(image), FALSE);
g_return_val_if_fail(image->priv->is_constructed, FALSE);
- return _gst_vaapi_image_map(image);
+ return _gst_vaapi_image_map(image, NULL);
}
gboolean
-_gst_vaapi_image_map(GstVaapiImage *image)
+_gst_vaapi_image_map(GstVaapiImage *image, GstVaapiImageRaw *raw_image)
{
+ GstVaapiImagePrivate * const priv = image->priv;
GstVaapiDisplay *display;
void *image_data;
VAStatus status;
+ guint i;
if (_gst_vaapi_image_is_mapped(image))
return TRUE;
return FALSE;
image->priv->image_data = image_data;
+
+ if (raw_image) {
+ const VAImage * const va_image = &priv->image;
+ raw_image->format = priv->format;
+ raw_image->width = va_image->width;
+ raw_image->height = va_image->height;
+ raw_image->num_planes = va_image->num_planes;
+ for (i = 0; i < raw_image->num_planes; i++) {
+ raw_image->pixels[i] = image_data + va_image->offsets[i];
+ raw_image->stride[i] = va_image->pitches[i];
+ }
+ }
return TRUE;
}
return image->priv->image.data_size;
}
+static gboolean
+init_image_from_buffer(GstVaapiImageRaw *raw_image, GstBuffer *buffer)
+{
+ GstStructure *structure;
+ GstCaps *caps;
+ GstVaapiImageFormat format;
+ guint width2, height2, size2;
+ gint width, height;
+ guchar *data;
+ guint32 data_size;
+
+ data = GST_BUFFER_DATA(buffer);
+ data_size = GST_BUFFER_SIZE(buffer);
+ caps = GST_BUFFER_CAPS(buffer);
+
+ if (!caps)
+ return FALSE;
+
+ format = gst_vaapi_image_format_from_caps(caps);
+
+ structure = gst_caps_get_structure(caps, 0);
+ gst_structure_get_int(structure, "width", &width);
+ gst_structure_get_int(structure, "height", &height);
+
+ /* XXX: copied from gst_video_format_get_row_stride() -- no NV12? */
+ raw_image->format = format;
+ raw_image->width = width;
+ raw_image->height = height;
+ width2 = (width + 1) / 2;
+ height2 = (height + 1) / 2;
+ size2 = 0;
+ switch (format) {
+ case GST_VAAPI_IMAGE_NV12:
+ raw_image->num_planes = 2;
+ raw_image->pixels[0] = data;
+ raw_image->stride[0] = GST_ROUND_UP_4(width);
+ size2 += height * raw_image->stride[0];
+ raw_image->pixels[1] = data + size2;
+ raw_image->stride[1] = raw_image->stride[0];
+ size2 += height2 * raw_image->stride[1];
+ break;
+ case GST_VAAPI_IMAGE_YV12:
+ case GST_VAAPI_IMAGE_I420:
+ raw_image->num_planes = 3;
+ raw_image->pixels[0] = data;
+ raw_image->stride[0] = GST_ROUND_UP_4(width);
+ size2 += height * raw_image->stride[0];
+ raw_image->pixels[1] = data + size2;
+ raw_image->stride[1] = GST_ROUND_UP_4(width2);
+ size2 += height2 * raw_image->stride[1];
+ raw_image->pixels[2] = data + size2;
+ raw_image->stride[2] = raw_image->stride[1];
+ size2 += height2 * raw_image->stride[2];
+ break;
+ case GST_VAAPI_IMAGE_ARGB:
+ case GST_VAAPI_IMAGE_RGBA:
+ case GST_VAAPI_IMAGE_ABGR:
+ case GST_VAAPI_IMAGE_BGRA:
+ raw_image->num_planes = 1;
+ raw_image->pixels[0] = data;
+ raw_image->stride[0] = width * 4;
+ size2 += height * raw_image->stride[0];
+ break;
+ default:
+ g_error("could not compute row-stride for %" GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS(format));
+ return FALSE;
+ }
+
+ if (size2 != data_size) {
+ g_error("data_size mismatch %d / %u", size2, data_size);
+ if (size2 > data_size)
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/* Copy N lines of an image */
+static inline void
+memcpy_pic(
+ guchar *dst,
+ guint dst_stride,
+ const guchar *src,
+ guint src_stride,
+ guint len,
+ guint height
+)
+{
+ guint i;
+
+ for (i = 0; i < height; i++) {
+ memcpy(dst, src, len);
+ dst += dst_stride;
+ src += dst_stride;
+ }
+}
+
+/* Copy NV12 images */
+static void
+copy_image_NV12(
+ GstVaapiImageRaw *dst_image,
+ GstVaapiImageRaw *src_image,
+ const GstVaapiRectangle *rect
+)
+{
+ guchar *dst, *src;
+ guint dst_stride, src_stride;
+
+ /* Y plane */
+ dst_stride = dst_image->stride[0];
+ dst = dst_image->pixels[0] + rect->y * dst_stride + rect->x;
+ src_stride = src_image->stride[0];
+ src = src_image->pixels[0] + rect->y * src_stride + rect->x;
+ memcpy_pic(dst, dst_stride, src, src_stride, rect->width, rect->height);
+
+ /* UV plane */
+ dst_stride = dst_image->stride[1];
+ dst = dst_image->pixels[1] + (rect->y / 2) * dst_stride + (rect->x & -2);
+ src_stride = src_image->stride[1];
+ src = src_image->pixels[1] + (rect->y / 2) * src_stride + (rect->x & -2);
+ memcpy_pic(dst, dst_stride, src, src_stride, rect->width, rect->height / 2);
+}
+
+/* Copy YV12 images */
+static void
+copy_image_YV12(
+ GstVaapiImageRaw *dst_image,
+ GstVaapiImageRaw *src_image,
+ const GstVaapiRectangle *rect
+)
+{
+ guchar *dst, *src;
+ guint dst_stride, src_stride;
+ guint i, x, y, w, h;
+
+ /* Y plane */
+ dst_stride = dst_image->stride[0];
+ dst = dst_image->pixels[0] + rect->y * dst_stride + rect->x;
+ src_stride = src_image->stride[0];
+ src = src_image->pixels[0] + rect->y * src_stride + rect->x;
+ memcpy_pic(dst, dst_stride, src, src_stride, rect->width, rect->height);
+
+ /* U/V planes */
+ x = rect->x / 2;
+ y = rect->y / 2;
+ w = rect->width / 2;
+ h = rect->height / 2;
+ for (i = 1; i < dst_image->num_planes; i++) {
+ dst_stride = dst_image->stride[i];
+ dst = dst_image->pixels[i] + y * dst_stride + x;
+ src_stride = src_image->stride[i];
+ src = src_image->pixels[i] + y * src_stride + x;
+ memcpy_pic(dst, dst_stride, src, src_stride, w, h);
+ }
+}
+
+/* Copy RGBA images */
+static void
+copy_image_RGBA(
+ GstVaapiImageRaw *dst_image,
+ GstVaapiImageRaw *src_image,
+ const GstVaapiRectangle *rect
+)
+{
+ guchar *dst, *src;
+ guint dst_stride, src_stride;
+
+ dst_stride = dst_image->stride[0];
+ dst = dst_image->pixels[0] + rect->y * dst_stride + rect->x;
+ src_stride = src_image->stride[0];
+ src = src_image->pixels[0] + rect->y * src_stride + rect->x;
+ memcpy_pic(dst, dst_stride, src, src_stride, 4 * rect->width, rect->height);
+}
+
+static gboolean
+copy_image(
+ GstVaapiImageRaw *dst_image,
+ GstVaapiImageRaw *src_image,
+ const GstVaapiRectangle *rect
+)
+{
+ GstVaapiRectangle default_rect;
+
+ if (dst_image->format != src_image->format ||
+ dst_image->width != src_image->width ||
+ dst_image->height != src_image->height)
+ return FALSE;
+
+ if (rect) {
+ if (rect->x >= src_image->width ||
+ rect->x + src_image->width > src_image->width ||
+ rect->y >= src_image->height ||
+ rect->y + src_image->height > src_image->height)
+ return FALSE;
+ }
+ else {
+ default_rect.x = 0;
+ default_rect.y = 0;
+ default_rect.width = src_image->width;
+ default_rect.height = src_image->height;
+ rect = &default_rect;
+ }
+
+ switch (dst_image->format) {
+ case GST_VAAPI_IMAGE_NV12:
+ copy_image_NV12(dst_image, src_image, rect);
+ break;
+ case GST_VAAPI_IMAGE_YV12:
+ case GST_VAAPI_IMAGE_I420:
+ copy_image_YV12(dst_image, src_image, rect);
+ break;
+ case GST_VAAPI_IMAGE_ARGB:
+ case GST_VAAPI_IMAGE_RGBA:
+ case GST_VAAPI_IMAGE_ABGR:
+ case GST_VAAPI_IMAGE_BGRA:
+ copy_image_RGBA(dst_image, src_image, rect);
+ break;
+ default:
+ GST_ERROR("unsupported image format for copy");
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ * gst_vaapi_image_get_buffer:
+ * @image: a #GstVaapiImage
+ * @buffer: a #GstBuffer
+ * @rect: a #GstVaapiRectangle expressing a region, or %NULL for the
+ * whole image
+ *
+ * Transfers pixels data contained in the @image into the #GstBuffer.
+ * Both image structures shall have the same format.
+ *
+ * Return value: %TRUE on success
+ */
+gboolean
+gst_vaapi_image_get_buffer(
+ GstVaapiImage *image,
+ GstBuffer *buffer,
+ GstVaapiRectangle *rect
+)
+{
+ GstVaapiImagePrivate *priv;
+ GstVaapiImageRaw dst_image, src_image;
+ gboolean success;
+
+ g_return_val_if_fail(GST_VAAPI_IS_IMAGE(image), FALSE);
+ g_return_val_if_fail(image->priv->is_constructed, FALSE);
+ g_return_val_if_fail(GST_IS_BUFFER(buffer), FALSE);
+
+ priv = image->priv;
+
+ if (!init_image_from_buffer(&dst_image, buffer))
+ return FALSE;
+ if (dst_image.format != priv->format)
+ return FALSE;
+ if (dst_image.width != priv->width || dst_image.height != priv->height)
+ return FALSE;
+
+ if (!_gst_vaapi_image_map(image, &src_image))
+ return FALSE;
+
+ success = copy_image(&dst_image, &src_image, rect);
+
+ if (!_gst_vaapi_image_unmap(image))
+ return FALSE;
+
+ return success;
+}
+
+/**
+ * gst_vaapi_image_get_raw:
+ * @image: a #GstVaapiImage
+ * @dst_image: a #GstVaapiImageRaw
+ * @buffer: a #GstBuffer
+ * @rect: a #GstVaapiRectangle expressing a region, or %NULL for the
+ * whole image
+ *
+ * Transfers pixels data contained in the @image into the #GstVaapiImageRaw.
+ * Both image structures shall have the same format.
+ *
+ * Return value: %TRUE on success
+ */
+gboolean
+gst_vaapi_image_get_raw(
+ GstVaapiImage *image,
+ GstVaapiImageRaw *dst_image,
+ GstVaapiRectangle *rect
+)
+{
+ GstVaapiImageRaw src_image;
+ gboolean success;
+
+ g_return_val_if_fail(GST_VAAPI_IS_IMAGE(image), FALSE);
+ g_return_val_if_fail(image->priv->is_constructed, FALSE);
+
+ if (!_gst_vaapi_image_map(image, &src_image))
+ return FALSE;
+
+ success = copy_image(dst_image, &src_image, rect);
+
+ if (!_gst_vaapi_image_unmap(image))
+ return FALSE;
+
+ return success;
+}
+
/**
* gst_vaapi_image_update_from_buffer:
* @image: a #GstVaapiImage
* @buffer: a #GstBuffer
+ * @rect: a #GstVaapiRectangle expressing a region, or %NULL for the
+ * whole image
*
* Transfers pixels data contained in the #GstBuffer into the
* @image. Both image structures shall have the same format.
* Return value: %TRUE on success
*/
gboolean
-gst_vaapi_image_update_from_buffer(GstVaapiImage *image, GstBuffer *buffer)
+gst_vaapi_image_update_from_buffer(
+ GstVaapiImage *image,
+ GstBuffer *buffer,
+ GstVaapiRectangle *rect
+)
{
GstVaapiImagePrivate *priv;
- GstStructure *structure;
- GstCaps *caps;
- GstVaapiImageFormat format;
- gint width, height;
- guint offsets[3], pitches[3], widths[3], heights[3];
- guint i, j;
- guchar *data;
- guint32 data_size;
+ GstVaapiImageRaw dst_image, src_image;
+ gboolean success;
g_return_val_if_fail(GST_VAAPI_IS_IMAGE(image), FALSE);
g_return_val_if_fail(image->priv->is_constructed, FALSE);
g_return_val_if_fail(GST_IS_BUFFER(buffer), FALSE);
- priv = image->priv;
- data = GST_BUFFER_DATA(buffer);
- data_size = GST_BUFFER_SIZE(buffer);
- caps = GST_BUFFER_CAPS(buffer);
+ priv = image->priv;
- if (!caps)
+ if (!init_image_from_buffer(&src_image, buffer))
+ return FALSE;
+ if (src_image.format != priv->format)
+ return FALSE;
+ if (src_image.width != priv->width || src_image.height != priv->height)
return FALSE;
- format = gst_vaapi_image_format_from_caps(caps);
- if (format != priv->format)
+ if (!_gst_vaapi_image_map(image, &dst_image))
return FALSE;
- structure = gst_caps_get_structure(caps, 0);
- gst_structure_get_int(structure, "width", &width);
- gst_structure_get_int(structure, "height", &height);
- if (width != priv->width || height != priv->height)
+ success = copy_image(&dst_image, &src_image, rect);
+
+ if (!_gst_vaapi_image_unmap(image))
return FALSE;
- if (!gst_vaapi_image_map(image))
+ return success;
+}
+
+/**
+ * gst_vaapi_image_update_from_raw:
+ * @image: a #GstVaapiImage
+ * @src_image: a #GstVaapiImageRaw
+ * @buffer: a #GstBuffer
+ * @rect: a #GstVaapiRectangle expressing a region, or %NULL for the
+ * whole image
+ *
+ * Transfers pixels data contained in the #GstVaapiImageRaw into the
+ * @image. Both image structures shall have the same format.
+ *
+ * Return value: %TRUE on success
+ */
+gboolean
+gst_vaapi_image_update_from_raw(
+ GstVaapiImage *image,
+ GstVaapiImageRaw *src_image,
+ GstVaapiRectangle *rect
+)
+{
+ GstVaapiImageRaw dst_image;
+ gboolean success;
+
+ g_return_val_if_fail(GST_VAAPI_IS_IMAGE(image), FALSE);
+ g_return_val_if_fail(image->priv->is_constructed, FALSE);
+
+ if (!_gst_vaapi_image_map(image, &dst_image))
return FALSE;
- if (priv->is_linear && data_size == priv->image.data_size)
- memcpy(priv->image_data, data, data_size);
- else {
- /* XXX: copied from gst_video_format_get_row_stride() -- no NV12? */
- const guint width2 = (width + 1) / 2;
- const guint height2 = (height + 1) / 2;
- guint size2;
- switch (format) {
- case GST_VAAPI_IMAGE_NV12:
- offsets[0] = 0;
- pitches[0] = GST_ROUND_UP_4(width);
- widths [0] = width;
- heights[0] = height;
- offsets[1] = offsets[0] + height * pitches[0];
- pitches[1] = pitches[0];
- widths [1] = width2 * 2;
- heights[1] = height2;
- size2 = offsets[1] + height2 * pitches[1];
- break;
- case GST_VAAPI_IMAGE_YV12:
- case GST_VAAPI_IMAGE_I420:
- offsets[0] = 0;
- pitches[0] = GST_ROUND_UP_4(width);
- widths [0] = width;
- heights[0] = height;
- offsets[1] = offsets[0] + height * pitches[0];
- pitches[1] = GST_ROUND_UP_4(GST_ROUND_UP_2(width) / 2);
- widths [1] = width2;
- heights[1] = height2;
- offsets[2] = offsets[1] + height2 * pitches[1];
- pitches[2] = pitches[1];
- widths [2] = width2;
- heights[2] = height2;
- size2 = offsets[2] + height2 * pitches[2];
- break;
- case GST_VAAPI_IMAGE_ARGB:
- case GST_VAAPI_IMAGE_RGBA:
- case GST_VAAPI_IMAGE_ABGR:
- case GST_VAAPI_IMAGE_BGRA:
- offsets[0] = 0;
- pitches[0] = width * 4;
- widths [0] = width * 4;
- heights[0] = height;
- size2 = offsets[0] + height * pitches[0];
- break;
- default:
- g_error("could not compute row-stride for %" GST_FOURCC_FORMAT,
- GST_FOURCC_ARGS(format));
- break;
- }
- if (size2 != data_size)
- g_error("data_size mismatch %d / %u", size2, data_size);
- for (i = 0; i < priv->image.num_planes; i++) {
- guchar *src = data + offsets[i];
- guchar *dst = priv->image_data + priv->image.offsets[i];
- for (j = 0; j < heights[i]; j++) {
- memcpy(dst, src, widths[i]);
- src += pitches[i];
- dst += priv->image.pitches[i];
- }
- }
- }
+ success = copy_image(&dst_image, src_image, rect);
- if (!gst_vaapi_image_unmap(image))
+ if (!_gst_vaapi_image_unmap(image))
return FALSE;
- return TRUE;
+ return success;
}
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