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Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
-rw-r--r--drivers/media/video/cx18/cx18-streams.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 9f8adda..7755937 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -262,9 +262,11 @@ static int cx18_reg_dev(struct cx18 *cx, int type)
switch (vfl_type) {
case VFL_TYPE_GRABBER:
- CX18_INFO("Registered device video%d for %s (%d x %d kB)\n",
+ CX18_INFO("Registered device video%d for %s "
+ "(%d x %d.%02d kB)\n",
num, s->name, cx->stream_buffers[type],
- cx->stream_buf_size[type]/1024);
+ cx->stream_buf_size[type] / 1024,
+ (cx->stream_buf_size[type] * 100 / 1024) % 100);
break;
case VFL_TYPE_RADIO:
@@ -501,9 +503,23 @@ static void cx18_stream_configure_mdls(struct cx18_stream *s)
{
cx18_unload_queues(s);
- /* For now */
- s->bufs_per_mdl = 1;
- s->mdl_size = s->buf_size * s->bufs_per_mdl;
+ switch (s->type) {
+ case CX18_ENC_STREAM_TYPE_YUV:
+ /*
+ * Height should be a multiple of 32 lines.
+ * Set the MDL size to the exact size needed for one frame.
+ * Use enough buffers per MDL to cover the MDL size
+ */
+ s->mdl_size = 720 * s->cx->params.height * 3 / 2;
+ s->bufs_per_mdl = s->mdl_size / s->buf_size;
+ if (s->mdl_size % s->buf_size)
+ s->bufs_per_mdl++;
+ break;
+ default:
+ s->bufs_per_mdl = 1;
+ s->mdl_size = s->buf_size * s->bufs_per_mdl;
+ break;
+ }
cx18_load_queues(s);
}