The stateful encoder requires the presence of this control. Since a single buffer is sufficient for vicodec, we just set this control to 1. Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> --- drivers/media/platform/vicodec/vicodec-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c index 7a78d044072d..4bea4a57386d 100644 --- a/drivers/media/platform/vicodec/vicodec-core.c +++ b/drivers/media/platform/vicodec/vicodec-core.c @@ -1801,13 +1801,16 @@ static int vicodec_open(struct file *file) file->private_data = &ctx->fh; ctx->dev = dev; hdl = &ctx->hdl; - v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_handler_init(hdl, 5); v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 16, 1, 10); v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_I_FRAME_QP, 1, 31, 1, 20); v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_P_FRAME_QP, 1, 31, 1, 20); + if (ctx->is_enc) + v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, + V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 1, 1, 1); if (ctx->is_stateless) v4l2_ctrl_new_custom(hdl, &vicodec_ctrl_stateless_state, NULL); if (hdl->error) { -- 2.20.1