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libs: use GstVideoInfo wherever possible.

Browse source 
In particular, use gst_video_info_from_caps() helper function in VA image
for implementating gst_vaapi_image_get_buffer() [vaapidownload] and
gst_vaapi_image_update_from_buffer() [subpictures] in GStreamer 0.10 builds.
This commit is contained in:
Gwenole Beauchesne 2013-07-09 16:26:11 +02:00
parent cb808f91aa
commit 40ac87b45e
1 changed files with 24 additions and 56 deletions
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80
gst-libs/gst/vaapi/gstvaapiimage.c
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@ -735,13 +735,11 @@ init_image_from_buffer(GstVaapiImageRaw *raw_image, GstBuffer *buffer)
static gboolean
init_image_from_buffer(GstVaapiImageRaw *raw_image, GstBuffer *buffer)
{
GstStructure *structure;
GstCaps *caps;
GstVideoFormat format;
guint width2, height2, size2;
gint width, height;
guchar *data;
guint32 data_size;
GstVideoInfo vi;
guint i, frame_size;
data = GST_BUFFER_DATA(buffer);
data_size = GST_BUFFER_SIZE(buffer);
@ -750,63 +748,33 @@ init_image_from_buffer(GstVaapiImageRaw *raw_image, GstBuffer *buffer)
if (!caps)
return FALSE;
format = gst_video_format_from_caps(caps);
if (!gst_video_info_from_caps(&vi, caps))
goto error_unsupported_caps;
structure = gst_caps_get_structure(caps, 0);
gst_structure_get_int(structure, "width", &width);
gst_structure_get_int(structure, "height", &height);
/* Check for compatible data size */
frame_size = GST_VIDEO_INFO_SIZE(&vi);
if (frame_size != data_size)
goto error_incompatible_size;
/* 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_VIDEO_FORMAT_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_VIDEO_FORMAT_YV12:
case GST_VIDEO_FORMAT_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_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_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;
}
raw_image->format = GST_VIDEO_INFO_FORMAT(&vi);
raw_image->width = GST_VIDEO_INFO_WIDTH(&vi);
raw_image->height = GST_VIDEO_INFO_HEIGHT(&vi);
if (size2 != data_size) {
g_error("data_size mismatch %d / %u", size2, data_size);
if (size2 > data_size)
return FALSE;
raw_image->num_planes = GST_VIDEO_INFO_N_PLANES(&vi);
for (i = 0; i < raw_image->num_planes; i++) {
raw_image->pixels[i] = data + GST_VIDEO_INFO_PLANE_OFFSET(&vi, i);
raw_image->stride[i] = GST_VIDEO_INFO_PLANE_STRIDE(&vi, i);
}
return TRUE;
/* ERRORS */
error_unsupported_caps:
GST_ERROR("unsupported caps %" GST_PTR_FORMAT, caps);
return FALSE;
error_incompatible_size:
GST_ERROR("incompatible frame size (%u) with buffer size (%u)",
frame_size, data_size);
return FALSE;
}
#endif