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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2015-01-23 19:51:28 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-02-02 15:26:31 +0300 |
| commit | e3cccff9aa93679f1b9d23080cc07197f58588f4 (patch) | |
| tree | ac342d1d284106779cb3944de4c852594685122f | |
| parent | f4706d6e6d2d174af156b56d08cfca35121ac7cc (diff) | |
| download | linux-e3cccff9aa93679f1b9d23080cc07197f58588f4.tar.xz | |
[media] coda: don't ever use subsampling ping-pong buffers as reconstructed reference buffers
On i.MX6, two subsampling ping-pong buffers are used for motion estimation and
deblocking They should not be counted as framebuffers, or they will be also used
to store reconstructed frames, causing visible artifacts in P-frames.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/media/platform/coda/coda-bit.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index 6ecfd29b7d98..7cdddd55d65d 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -718,6 +718,7 @@ static int coda_start_encoding(struct coda_ctx *ctx) struct vb2_buffer *buf; int gamma, ret, value; u32 dst_fourcc; + int num_fb; u32 stride; q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); @@ -983,12 +984,14 @@ static int coda_start_encoding(struct coda_ctx *ctx) v4l2_err(v4l2_dev, "failed to allocate framebuffers\n"); goto out; } + num_fb = 2; stride = q_data_src->bytesperline; } else { ctx->num_internal_frames = 0; + num_fb = 0; stride = 0; } - coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM); + coda_write(dev, num_fb, CODA_CMD_SET_FRAME_BUF_NUM); coda_write(dev, stride, CODA_CMD_SET_FRAME_BUF_STRIDE); if (dev->devtype->product == CODA_7541) { |