From 236306be0b2cbb52d4f18b2550d05f7463caf3c3 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Tue, 18 Jun 2019 12:45:16 -0400 Subject: [PATCH] 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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-common.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) 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 && -- 2.30.2