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[mpp_task]: add advanced task flow to mpp, mpi_enc_test can work without error

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git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@1035 6e48237b-75ef-9749-8fc9-41990f28c85a
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ChenHengming
2016-07-16 10:13:35 +00:00
parent 947da74b5d
commit ac9505c16c
10 changed files with 450 additions and 215 deletions
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44
inc/mpp_task.h
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@@ -42,7 +42,14 @@
*/
/*
* mpp has two ports: input and output
* One mpp task queue has two ports: input and output
*
* The whole picture is:
* Top layer mpp has two ports: mpp_input_port and mpp_output_port
* But internally these two ports belongs to two task queue.
* The mpp_input_port is the mpp_input_task_queue's input port.
* The mpp_output_port is the mpp_output_task_queue's output port.
*
* Each port uses its task queue to communication
*/
typedef enum {
@@ -175,11 +182,46 @@ typedef enum {
*/
/* NOTE: use index rather then handle to descripbe task */
typedef void* MppTask;
typedef void* MppPort;
typedef void* MppTaskQueue;
#ifdef __cplusplus
extern "C" {
#endif
/*
* Mpp task queue function:
*
* mpp_task_queue_init - create task queue structure
* mpp_task_queue_deinit - destory task queue structure
* mpp_task_queue_get_port - return input or output port of task queue
*
* Typical work flow, task mpp_dec for example:
*
* 1. Mpp layer creates one task queue in order to connect mpp input and mpp_dec input.
* 2. Mpp layer setups the task count in task queue input port.
* 3. Get input port from the task queue and assign to mpp input as mpp_input_port.
* 4. Get output port from the task queue and assign to mpp_dec input as dec_input_port.
* 5. Let the loop start.
* a. mpi user will dequeue task from mpp_input_port.
* b. mpi user will setup task.
* c. mpi user will enqueue task back to mpp_input_port.
* d. task will automatically transfer to dec_input_port.
* e. mpp_dec will dequeue task from dec_input_port.
* f. mpp_dec will process task.
* g. mpp_dec will enqueue task back to dec_input_port.
* h. task will automatically transfer to mpp_input_port.
* 6. Stop the loop. All tasks must be return to input port with idle status.
* 6. Mpp layer destory the task queue.
*/
MPP_RET mpp_task_queue_init(MppTaskQueue *queue);
MPP_RET mpp_task_queue_setup(MppTaskQueue queue, RK_S32 task_count);
MPP_RET mpp_task_queue_deinit(MppTaskQueue queue);
MppPort mpp_task_queue_get_port(MppTaskQueue queue, MppPortType type);
MPP_RET mpp_port_dequeue(MppPort port, MppTask *task);
MPP_RET mpp_port_enqueue(MppPort port, MppTask task);
MPP_RET mpp_task_meta_set_s32(MppTask task, MppMetaKey key, RK_S32 val);
MPP_RET mpp_task_meta_set_s64(MppTask task, MppMetaKey key, RK_S64 val);
MPP_RET mpp_task_meta_set_ptr(MppTask task, MppMetaKey key, void *val);