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| author | Stanimir Varbanov <stanimir.varbanov@linaro.org> | 2017-06-15 19:31:58 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-20 14:53:41 +0300 |
| commit | ebebc5939e15e12b4a226552574408772cda5ced (patch) | |
| tree | 914cdac7992ed64e91ee21a3c255b8f6b52f0a57 /drivers/media/platform/qcom/venus/vdec_ctrls.c | |
| parent | c3eb9e51c86bae9c482d28f9a73c06cf2ae6c73b (diff) | |
| download | linux-ebebc5939e15e12b4a226552574408772cda5ced.tar.xz | |
[media] media: venus: vdec: add support for min buffers for capture
This adds support for V4L2_CID_MIN_BUFFERS_FOR_CAPTURE get control
in venus decoder, it is usable in case when the userspace wants
to know minimum capture buffers before calling request_buf for
capture queue in mem2mem drivers. Also this will fix an issue
found gstreamer v4l2videodec element, i.e. the video decoder
element cannot continue because the buffers are insufficient.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
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/qcom/venus/vdec_ctrls.c')
| -rw-r--r-- | drivers/media/platform/qcom/venus/vdec_ctrls.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/media/platform/qcom/venus/vdec_ctrls.c b/drivers/media/platform/qcom/venus/vdec_ctrls.c index 1045fc5b4925..032839bbc967 100644 --- a/drivers/media/platform/qcom/venus/vdec_ctrls.c +++ b/drivers/media/platform/qcom/venus/vdec_ctrls.c @@ -70,6 +70,9 @@ static int vdec_op_g_volatile_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: ctrl->val = ctr->post_loop_deb_mode; break; + case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE: + ctrl->val = inst->num_output_bufs; + break; default: return -EINVAL; }; @@ -87,7 +90,7 @@ int vdec_ctrl_init(struct venus_inst *inst) struct v4l2_ctrl *ctrl; int ret; - ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 6); + ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 7); if (ret) return ret; @@ -135,6 +138,11 @@ int vdec_ctrl_init(struct venus_inst *inst) v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops, V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER, 0, 1, 1, 0); + ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops, + V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, 1); + if (ctrl) + ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; + ret = inst->ctrl_handler.error; if (ret) { v4l2_ctrl_handler_free(&inst->ctrl_handler); |