diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index 852f420fd27..638cca156b5 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -138,6 +138,12 @@ static int cx18_prepare_buffer(struct videobuf_queue *q, buf->tvnorm = cx->std; s->pixelformat = pixelformat; + /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) + UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ + if (s->pixelformat == V4L2_PIX_FMT_HM12) + s->vb_bytes_per_frame = height * 720 * 3 / 2; + else + s->vb_bytes_per_frame = height * 720 * 2; cx18_dma_free(q, s, buf); } @@ -154,6 +160,12 @@ static int cx18_prepare_buffer(struct videobuf_queue *q, buf->tvnorm = cx->std; s->pixelformat = pixelformat; + /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2))) + UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */ + if (s->pixelformat == V4L2_PIX_FMT_HM12) + s->vb_bytes_per_frame = height * 720 * 3 / 2; + else + s->vb_bytes_per_frame = height * 720 * 2; rc = videobuf_iolock(q, &buf->vb, NULL); if (rc != 0) goto fail; @@ -287,6 +299,7 @@ static void cx18_stream_init(struct cx18 *cx, int type) /* Assume the previous pixel default */ s->pixelformat = V4L2_PIX_FMT_HM12; + s->vb_bytes_per_frame = cx->cxhdl.height * 720 * 3 / 2; } } |