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[mpi]: Add mpp_start and mpp_stop

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The purpose of mpp_start and mpp_stop is to break mpp_init_into two
stage.

Original mpp_init conbine the init and start for example mpp_dec_init
and mpp_dec_start then the global (or static) config which dominate the
fundamental working way can be only be set before mpp_init. That is
unreasonable. Another example is the encode memory prealloc flow.

The mpp_start is added to end global param receiving and do real
preparation of current operation in mpp_init.
The mpp_stop is the opposite of mpp_start.

Change-Id: I2bdcc29a9ff75777acc5c39c7e7f01477e597bb0
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
This commit is contained in:
Herman Chen
2021-05-20 09:29:10 +08:00
parent 94a8f7dd95
commit dbd2e2a77b
1 changed files with 27 additions and 0 deletions
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27
inc/rk_mpi.h
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@@ -240,6 +240,33 @@ MPP_RET mpp_create(MppCtx *ctx, MppApi **mpi);
* error code. For details, please refer mpp_err.h. * error code. For details, please refer mpp_err.h.
*/ */
MPP_RET mpp_init(MppCtx ctx, MppCtxType type, MppCodingType coding); 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 * @ingroup rk_mpi
* @brief Destroy mpp context and free both context and mpi structure, * @brief Destroy mpp context and free both context and mpi structure,