Add a helper function to return current output picture buffer size.
OPB sizes can vary depending on the selected decoder output(s).

Signed-off-by: Stanimir Varbanov <stanimir.varba...@linaro.org>
---
 drivers/media/platform/qcom/venus/core.h    | 10 ++++++++++
 drivers/media/platform/qcom/venus/helpers.c | 15 +++++++++++++++
 drivers/media/platform/qcom/venus/helpers.h |  1 +
 3 files changed, 26 insertions(+)

diff --git a/drivers/media/platform/qcom/venus/core.h 
b/drivers/media/platform/qcom/venus/core.h
index 255292899204..4d6c05f156c4 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -234,6 +234,11 @@ struct venus_buffer {
  * @num_output_bufs:   holds number of output buffers
  * @input_buf_size     holds input buffer size
  * @output_buf_size:   holds output buffer size
+ * @output2_buf_size:  holds secondary decoder output buffer size
+ * @dpb_buftype:       decoded picture buffer type
+ * @dpb_fmt:           decodec picture buffre raw format
+ * @opb_buftype:       output picture buffer type
+ * @opb_fmt:           output picture buffer raw format
  * @reconfig:  a flag raised by decoder when the stream resolution changed
  * @reconfig_width:    holds the new width
  * @reconfig_height:   holds the new height
@@ -282,6 +287,11 @@ struct venus_inst {
        unsigned int num_output_bufs;
        unsigned int input_buf_size;
        unsigned int output_buf_size;
+       unsigned int output2_buf_size;
+       u32 dpb_buftype;
+       u32 dpb_fmt;
+       u32 opb_buftype;
+       u32 opb_fmt;
        bool reconfig;
        u32 reconfig_width;
        u32 reconfig_height;
diff --git a/drivers/media/platform/qcom/venus/helpers.c 
b/drivers/media/platform/qcom/venus/helpers.c
index f04d16953b3a..f0a0fca60c76 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -611,6 +611,21 @@ int venus_helper_set_bufsize(struct venus_inst *inst, u32 
bufsize, u32 buftype)
 }
 EXPORT_SYMBOL_GPL(venus_helper_set_bufsize);
 
+unsigned int venus_helper_get_opb_size(struct venus_inst *inst)
+{
+       /* the encoder has only one output */
+       if (inst->session_type == VIDC_SESSION_TYPE_ENC)
+               return inst->output_buf_size;
+
+       if (inst->opb_buftype == HFI_BUFFER_OUTPUT)
+               return inst->output_buf_size;
+       else if (inst->opb_buftype == HFI_BUFFER_OUTPUT2)
+               return inst->output2_buf_size;
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(venus_helper_get_opb_size);
+
 static void delayed_process_buf_func(struct work_struct *work)
 {
        struct venus_buffer *buf, *n;
diff --git a/drivers/media/platform/qcom/venus/helpers.h 
b/drivers/media/platform/qcom/venus/helpers.h
index 8ff4bd3ef958..92be45894a69 100644
--- a/drivers/media/platform/qcom/venus/helpers.h
+++ b/drivers/media/platform/qcom/venus/helpers.h
@@ -48,6 +48,7 @@ int venus_helper_set_raw_format(struct venus_inst *inst, u32 
hfi_format,
 int venus_helper_set_color_format(struct venus_inst *inst, u32 fmt);
 int venus_helper_set_dyn_bufmode(struct venus_inst *inst);
 int venus_helper_set_bufsize(struct venus_inst *inst, u32 bufsize, u32 
buftype);
+unsigned int venus_helper_get_opb_size(struct venus_inst *inst);
 void venus_helper_acquire_buf_ref(struct vb2_v4l2_buffer *vbuf);
 void venus_helper_release_buf_ref(struct venus_inst *inst, unsigned int idx);
 void venus_helper_init_instance(struct venus_inst *inst);
-- 
2.14.1

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