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v4l2: setup strides and offsets for all planes

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This commit is contained in:
Wim Taymans 2012-06-26 11:14:59 +02:00
parent 2c04c30ec3
commit f4e3ae65ab
1 changed files with 18 additions and 6 deletions
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24
sys/v4l2/gstv4l2bufferpool.c
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@ -190,16 +190,28 @@ gst_v4l2_buffer_pool_alloc_buffer (GstBufferPool * bpool, GstBuffer ** buffer,
/* add metadata to raw video buffers */ /* add metadata to raw video buffers */
if (pool->add_videometa && info->finfo) { if (pool->add_videometa && info->finfo) {
const GstVideoFormatInfo *finfo = info->finfo;
gsize offset[GST_VIDEO_MAX_PLANES]; gsize offset[GST_VIDEO_MAX_PLANES];
gint stride[GST_VIDEO_MAX_PLANES]; gint width, height, n_planes, offs, i, stride[GST_VIDEO_MAX_PLANES];
offset[0] = 0; width = GST_VIDEO_INFO_WIDTH (info);
stride[0] = obj->bytesperline; height = GST_VIDEO_INFO_HEIGHT (info);
n_planes = GST_VIDEO_INFO_N_PLANES (info);
GST_DEBUG_OBJECT (pool, "adding video meta, stride %d", stride[0]); GST_DEBUG_OBJECT (pool, "adding video meta, bytesperline %d",
obj->bytesperline);
offs = 0;
for (i = 0; i < n_planes; i++) {
offset[i] = offs;
stride[i] =
GST_VIDEO_FORMAT_INFO_SCALE_WIDTH (finfo, i, obj->bytesperline);
offs +=
stride[i] * GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (finfo, i, height);
}
gst_buffer_add_video_meta_full (newbuf, GST_VIDEO_FRAME_FLAG_NONE, gst_buffer_add_video_meta_full (newbuf, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_FORMAT (info), width, height, n_planes,
GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
offset, stride); offset, stride);
} }
break; break;