[mpi]: Add start / stop / pause / resume ctrl cmd

1. Move mpp_start / mpp_stop function to control command.
2. Add pause / resume control command.

Change-Id: I525668a2831eb8f23e12fbd7c1cb29c11fdcc868
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>

inc/rk_mpi.h

@@ -240,33 +240,6 @@ MPP_RET mpp_create(MppCtx *ctx, MppApi **mpi);
  *         error code. For details, please refer mpp_err.h.
  */
 MPP_RET mpp_init(MppCtx ctx, MppCtxType type, MppCodingType coding);
-/**
- * @ingroup rk_mpi
- * @brief Call after mpp_init to start mpp working.
- *        Control SET_CFG can be called both before and after mpp_start.
- *        Before mpp_start is called both global param and dynamic param can be set.
- *        After mpp_start is called only dynamic param can be set.
- *        This funciton purpose is to stop recieving global param and do
- *        preparation for processing data flow.
- *        This function will call internal context start function.
- * @param[in] ctx The context of mpp, created by mpp_create().
- * @return 0 for success, others for failure. The return value is an
- *         error code. For details, please refer mpp_err.h.
- */
-MPP_RET mpp_start(MppCtx ctx);
-/**
- * @ingroup rk_mpi
- * @brief Call before mpp_destroy to stop mpp working.
- *        Control SET_CFG can be called after starting.
- *        Before mpp_stop is called only dynamic param can be set.
- *        After mpp_stop is called both global param and dynamic param can be set.
- *        This funciton purpose is to stop processing data and do preparation
- *        to receive global param.
- * @param[in] ctx The context of mpp, created by mpp_create().
- * @return 0 for success, others for failure. The return value is an
- *         error code. For details, please refer mpp_err.h.
- */
-MPP_RET mpp_stop(MppCtx ctx);
 /**
  * @ingroup rk_mpi
  * @brief Destroy mpp context and free both context and mpi structure,

inc/rk_mpi_cmd.h

@@ -37,6 +37,9 @@
 /* separate encoder / decoder control command to different segment */
 #define CMD_CFG_ID_MASK                 (0x0000FF00)
 
+/* mpp status control command */
+#define CMD_STATE_OPS                   (0x00000100)
+
 /* decoder control command */
 #define CMD_DEC_CFG_ALL                 (0x00000000)
 #define CMD_DEC_QUERY                   (0x00000100)
@@ -70,6 +73,13 @@ typedef enum {
      */
     MPP_SET_INPUT_TIMEOUT,              /* parameter type RK_S64 */
     MPP_SET_OUTPUT_TIMEOUT,             /* parameter type RK_S64 */
+
+    MPP_STATE_CMD_BASE                  = CMD_MODULE_MPP | CMD_STATE_OPS,
+    MPP_START,
+    MPP_STOP,
+    MPP_PAUSE,
+    MPP_RESUME,
+
     MPP_CMD_END,
 
     MPP_CODEC_CMD_BASE                  = CMD_MODULE_CODEC,

mpp/inc/mpp.h

@@ -103,6 +103,9 @@ class Mpp
     MPP_RET start();
     MPP_RET stop();
 
+    MPP_RET pause();
+    MPP_RET resume();
+
     MPP_RET put_packet(MppPacket packet);
     MPP_RET get_frame(MppFrame *frame);
 

mpp/mpi.cpp

@@ -519,34 +519,6 @@ MPP_RET mpp_destroy(MppCtx ctx)
     return ret;
 }
 
-MPP_RET mpp_start(MppCtx ctx)
-{
-    mpi_dbg_func("enter ctx %p\n", ctx);
-
-    MpiImpl *p = (MpiImpl*)ctx;
-    MPP_RET ret = check_mpp_ctx(p);
-
-    if (MPP_OK == ret)
-        ret = p->ctx->start();
-
-    mpi_dbg_func("leave ctx %p ret %d\n", ctx, ret);
-    return ret;
-}
-
-MPP_RET mpp_stop(MppCtx ctx)
-{
-    mpi_dbg_func("enter ctx %p\n", ctx);
-
-    MpiImpl *p = (MpiImpl*)ctx;
-    MPP_RET ret = check_mpp_ctx(p);
-
-    if (MPP_OK == ret)
-        ret = p->ctx->stop();
-
-    mpi_dbg_func("leave ctx %p ret %d\n", ctx, ret);
-    return ret;
-}
-
 MPP_RET mpp_check_support_format(MppCtxType type, MppCodingType coding)
 {
     MPP_RET ret = MPP_NOK;

mpp/mpp.cpp

@@ -298,6 +298,16 @@ MPP_RET Mpp::stop()
     return MPP_OK;
 }
 
+MPP_RET Mpp::pause()
+{
+    return MPP_OK;
+}
+
+MPP_RET Mpp::resume()
+{
+    return MPP_OK;
+}
+
 MPP_RET Mpp::put_packet(MppPacket packet)
 {
     if (!mInitDone)
@@ -855,6 +865,20 @@ MPP_RET Mpp::control_mpp(MpiCmd cmd, MppParam param)
             mOutputTimeout = timeout;
     } break;
 
+    case MPP_START : {
+        start();
+    } break;
+    case MPP_STOP : {
+        stop();
+    } break;
+
+    case MPP_PAUSE : {
+        pause();
+    } break;
+    case MPP_RESUME : {
+        resume();
+    } break;
+
     default : {
         ret = MPP_NOK;
     } break;