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authorPhilipp Zabel <p.zabel@pengutronix.de>2019-06-18 12:45:16 -0400
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-06-24 14:26:01 -0400
commit236306be0b2cbb52d4f18b2550d05f7463caf3c3 (patch)
tree2ccb704f64237c39925ef0e96882fac1af745e5f
parent497e6b8559a64f41d6dd65a68e8a8576ba637fda (diff)
media: coda: implement decoder source change event
The stateful decoder API requires decoders to signal detection of stream dimensions via the V4L2_EVENT_SOURCE_CHANGE event. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-rw-r--r--drivers/media/platform/coda/coda-common.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 3fe374287600..19e3afa4f24d 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1255,9 +1255,16 @@ static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
static int coda_subscribe_event(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub)
{
+ struct coda_ctx *ctx = fh_to_ctx(fh);
+
switch (sub->type) {
case V4L2_EVENT_EOS:
return v4l2_event_subscribe(fh, sub, 0, NULL);
+ case V4L2_EVENT_SOURCE_CHANGE:
+ if (ctx->inst_type == CODA_INST_DECODER)
+ return v4l2_event_subscribe(fh, sub, 0, NULL);
+ else
+ return -EINVAL;
default:
return v4l2_ctrl_subscribe_event(fh, sub);
}
@@ -1642,6 +1649,16 @@ void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
}
}
+static void coda_queue_source_change_event(struct coda_ctx *ctx)
+{
+ static const struct v4l2_event source_change_event = {
+ .type = V4L2_EVENT_SOURCE_CHANGE,
+ .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+ };
+
+ v4l2_event_queue_fh(&ctx->fh, &source_change_event);
+}
+
static void coda_buf_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
@@ -1696,6 +1713,9 @@ static void coda_buf_queue(struct vb2_buffer *vb)
&ctx->seq_init_work);
flush_work(&ctx->seq_init_work);
}
+
+ if (ctx->initialized)
+ coda_queue_source_change_event(ctx);
}
} else {
if (ctx->inst_type == CODA_INST_ENCODER &&

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