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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2017-06-06 18:59:01 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-07 18:29:34 +0300 |
| commit | 7e68c53387f1180745d6ef25d6425aef767b519e (patch) | |
| tree | 443cc1975bf4cd60ab8f0138ae236c6f482c4990 /drivers/media/platform/coda/coda-common.c | |
| parent | a3dbff6eecad72333bae656681331aab27adee4d (diff) | |
| download | linux-7e68c53387f1180745d6ef25d6425aef767b519e.tar.xz | |
[media] coda: implement forced key frames
Implement the V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME control to force IDR
frames. This is useful to implement VFU (Video Fast Update) on RTP
transmissions.
We already force an IDR frame at the beginning of each GOP to work
around a firmware bug on i.MX27, use the same mechanism to service IDR
requests from userspace.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/coda/coda-common.c')
| -rw-r--r-- | drivers/media/platform/coda/coda-common.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 4724dfef0643..78bd9a4ace0e 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -1700,6 +1700,9 @@ static int coda_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: ctx->params.intra_refresh = ctrl->val; break; + case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME: + ctx->params.force_ipicture = true; + break; case V4L2_CID_JPEG_COMPRESSION_QUALITY: coda_set_jpeg_compression_quality(ctx, ctrl->val); break; |