diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.c | 26 |
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 9f8adda6f261..7755937fc521 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); } |