/*
* gstvaapiimage.c - VA image abstraction
*
- * gstreamer-vaapi (C) 2010-2011 Splitted-Desktop Systems
+ * Copyright (C) 2010-2011 Splitted-Desktop Systems
+ * Copyright (C) 2011 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
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(
}
/**
+ * 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
)
{
GstVaapiImagePrivate *priv;
- GstStructure *structure;
- GstCaps *caps;
- GstVaapiImageFormat format;
GstVaapiImageRaw dst_image, src_image;
- guint width2, height2, size2;
- gint width, height;
- guchar *data;
- guint32 data_size;
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;
-
- format = gst_vaapi_image_format_from_caps(caps);
- if (format != priv->format)
+ if (src_image.format != priv->format)
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)
+ if (src_image.width != priv->width || src_image.height != priv->height)
return FALSE;
if (!_gst_vaapi_image_map(image, &dst_image))
return FALSE;
- /* XXX: copied from gst_video_format_get_row_stride() -- no NV12? */
- src_image.format = priv->format;
- src_image.width = width;
- src_image.height = height;
- width2 = (width + 1) / 2;
- height2 = (height + 1) / 2;
- size2 = 0;
- switch (format) {
- case GST_VAAPI_IMAGE_NV12:
- src_image.num_planes = 2;
- src_image.pixels[0] = data;
- src_image.stride[0] = GST_ROUND_UP_4(width);
- size2 += height * src_image.stride[0];
- src_image.pixels[1] = data + size2;
- src_image.stride[1] = src_image.stride[1];
- size2 += height2 * src_image.stride[1];
- break;
- case GST_VAAPI_IMAGE_YV12:
- case GST_VAAPI_IMAGE_I420:
- src_image.num_planes = 3;
- src_image.pixels[0] = data;
- src_image.stride[0] = GST_ROUND_UP_4(width);
- size2 += height * src_image.stride[0];
- src_image.pixels[1] = data + size2;
- src_image.stride[1] = GST_ROUND_UP_4(width2);
- size2 += height2 * src_image.stride[1];
- src_image.pixels[2] = data + size2;
- src_image.stride[2] = src_image.stride[1];
- size2 += height2 * src_image.stride[2];
- break;
- case GST_VAAPI_IMAGE_ARGB:
- case GST_VAAPI_IMAGE_RGBA:
- case GST_VAAPI_IMAGE_ABGR:
- case GST_VAAPI_IMAGE_BGRA:
- src_image.num_planes = 1;
- src_image.pixels[0] = data;
- src_image.stride[0] = width * 4;
- size2 += height * src_image.stride[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);
- if (size2 > data_size) {
- _gst_vaapi_image_unmap(image);
- return FALSE;
- }
- }
-
success = copy_image(&dst_image, &src_image, rect);
if (!_gst_vaapi_image_unmap(image))
projects / profile / ivi / gstreamer-vaapi.git / blobdiff