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omxbufferpool: make video stride and offset calculation easier

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It will be easier to support more color format.
This commit is contained in:
Aurélien Zanelli 2014-04-09 18:51:41 +02:00 committed by Julien Isorce
parent c115da9fd5
commit 6834d2e0b3
1 changed files with 11 additions and 17 deletions
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28
omx/gstomxbufferpool.c
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@ -372,27 +372,21 @@ gst_omx_buffer_pool_alloc_buffer (GstBufferPool * bpool,
g_ptr_array_add (pool->buffers, buf);
if (pool->add_videometa) {
gsize offset[4] = { 0, };
gint stride[4] = { 0, };
const guint nstride = pool->port->port_def.format.video.nStride;
const guint nslice = pool->port->port_def.format.video.nSliceHeight;
gsize offset[GST_VIDEO_MAX_PLANES] = { 0, };
gint stride[GST_VIDEO_MAX_PLANES] = { nstride, 0, };
switch (pool->video_info.finfo->format) {
switch (GST_VIDEO_INFO_FORMAT (&pool->video_info)) {
case GST_VIDEO_FORMAT_I420:
offset[0] = 0;
stride[0] = pool->port->port_def.format.video.nStride;
offset[1] =
stride[0] * pool->port->port_def.format.video.nSliceHeight;
stride[1] = pool->port->port_def.format.video.nStride / 2;
offset[2] =
offset[1] +
stride[1] * (pool->port->port_def.format.video.nSliceHeight / 2);
stride[2] = pool->port->port_def.format.video.nStride / 2;
stride[1] = nstride / 2;
offset[1] = offset[0] + stride[0] * nslice;
stride[2] = nstride / 2;
offset[2] = offset[1] + (stride[1] * nslice / 2);
break;
case GST_VIDEO_FORMAT_NV12:
offset[0] = 0;
stride[0] = pool->port->port_def.format.video.nStride;
offset[1] =
stride[0] * pool->port->port_def.format.video.nSliceHeight;
stride[1] = pool->port->port_def.format.video.nStride;
stride[1] = nstride;
offset[1] = offset[0] + stride[0] * nslice;
break;
default:
g_assert_not_reached ();