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https://github.com/openharmony/drivers_peripheral.git
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qijinquan
145 lines
6.4 KiB
C
145 lines
6.4 KiB
C
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @addtogroup Codec
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* @{
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*
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* @brief Defines APIs related to the Codec module.
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*
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* The Codec module provides APIs for initializing the custom data and audio and video codecs,
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* setting codec parameters, and controlling and transferring data.
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*
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* @since 3.1
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*/
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/**
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* @file codec_callback_if.h
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*
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* @brief Defines the callbacks used to report codec events and processing results of the input and output buffers.
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*
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* @since 3.1
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*/
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#ifndef CODEC_CALLBACK_TYPE_H
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#define CODEC_CALLBACK_TYPE_H
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#include <stdint.h>
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#include <netinet/in.h>
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#include "codec_component_type.h"
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#include "OMX_Core.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* @brief Defines the callbacks of the Codec module.
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*
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* The following callbacks are provided:
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* 1. Callback used to report component error events, command completion events, and port setting events.
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* For details, see {@link EventHandler}.
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* 2. Callback invoked when the input port processes data in the buffer. For details, see {@link EmptyBufferDone}.
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* 3. Callback invoked when the output port fills data into the buffer. For details, see {@link FillBufferDone}.
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* The callbacks are registered by using:
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* 1. {@link CreateComponent} when a component is created.
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* 2. {@link SetCallbacks} when the component is in the OMX_StateLoaded state.
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*/
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struct CodecCallbackType {
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struct HdfRemoteService *remote;
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/**
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* @brief Reports an event, such as an error, a command completion event, and port setting changes
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* during the running of a component.
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*
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* When <b>eEvent</b> is <b>OMX_EventCmdComplete</b>, <b>eventData</b> is null, and <b>data1</b> is
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* <b>OMX_COMMANDTYPE</b>, <b>data1</b> indicates a state, if <b>data1</b> is <b>OMX_CommandStateSet</b>
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* and indicates a port in other cases.
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* If <b>eEvent</b> is <b>OMX_EventError</b>, <b>data1</b> indicates an error code and <b>data2</b> and
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* <b>eventData</b> are both <b>0</b>.
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* If <b>eEvent</b> is <b>OMX_EventMark</b>, <b>data1</b> and <b>data2</b> are both <b>0</b> and
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* <b>eventData</b> points to the mark.
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* When <b>eEvent</b> is <b>OMX_EventPortSettingsChanged</b>, <b>data1</b> indicates a port and
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* <b>data2</b> and <b>eventData</b> are <b>0</b>.
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* When <b>eEvent</b> is <b>OMX_EventBufferFlag</b>, <b>data1</b> indicates a port, <b>data2</b> indicates a flag,
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* and <b>eventData</b> is <b>0</b>.
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* When <b>eEvent</b> is <b>OMX_EventResourcesAcquired</b> or <b>OMX_EventDynamicResourcesAvailable</b>,
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* the values of <b>data1</b>, <b>data2</b>, and <b>eventData</b> are <b>0</b>.
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*
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* @param self Indicates the pointer to the callback to be invoked.
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* @param event Indicates the type of events to report. For details, see {@link OMX_EVENTTYPE}.
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* @param info Indicates the pointer to event info. For detials see{@link EventInfo}.
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*
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* @return Returns <b>HDF_SUCCESS</b> if the operation is successful.
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* @return Returns <b>HDF_ERR_INVALID_PARAM</b> if the operation failed due to invalid parameters.
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* @return Returns <b>HDF_ERR_INVALID_OBJECT</b> if the operation failed due to invalid objects.
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* @return Returns <b>HDF_ERR_MALLOC_FAIL</b> if the operation failed due to insufficient memory.
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*/
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int32_t (*EventHandler)(struct CodecCallbackType *self, enum OMX_EVENTTYPE event, struct EventInfo *info);
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/**
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* @brief Reports an event indicating that the encoding or decoding in the input buffer is complete.
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*
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* @param self Indicates the pointer to the callback to be invoked.
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* @param appData Indicates the pointer to the upper-layer instance passed to the callback.
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* @param appDataLen Indicates the length of <b>appData</b>, in bytes.
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* @param buffer Indicates the pointer to the input buffer {@link OmxCodecBuffer} that has data processed.
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*
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* @return Returns <b>HDF_SUCCESS</b> if the operation is successful.
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* @return Returns <b>HDF_ERR_INVALID_PARAM</b> if the operation failed due to invalid parameters.
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* @return Returns <b>HDF_ERR_INVALID_OBJECT</b> if the operation failed due to invalid objects.
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* @return Returns <b>HDF_ERR_MALLOC_FAIL</b> if the operation failed due to insufficient memory.
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*/
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int32_t (*EmptyBufferDone)(struct CodecCallbackType *self, int8_t *appData,
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uint32_t appDataLen, const struct OmxCodecBuffer *buffer);
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/**
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* @brief Reports an event indicating that the output buffer is filled.
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*
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* @param self Indicates the pointer to the callback to be invoked.
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* @param appData Indicates the pointer to the upper-layer instance passed to the callback.
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* @param appDataLen Indicates the length of <b>appData</b>, in bytes.
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* @param buffer Indicates the pointer to the buffer {@link OmxCodecBuffer} that has data filled.
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*
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* @return Returns <b>HDF_SUCCESS</b> if the operation is successful.
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* @return Returns <b>HDF_ERR_INVALID_PARAM</b> if the operation failed due to invalid parameters.
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* @return Returns <b>HDF_ERR_INVALID_OBJECT</b> if the operation failed due to invalid objects.
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* @return Returns <b>HDF_ERR_MALLOC_FAIL</b> if the operation failed due to insufficient memory.
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*/
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int32_t (*FillBufferDone)(struct CodecCallbackType *self, int8_t* appData,
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uint32_t appDataLen, struct OmxCodecBuffer* buffer);
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};
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/**
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* @brief Instantiates a <b>CodecCallbackType</b> object.
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*
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* @param remote Indicates the pointer to the <b>HdfRemoteService</b>.
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*
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* @return Returns the <b>CodecCallbackType</b> object instantiated.
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*/
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struct CodecCallbackType *CodecCallbackTypeGet(struct HdfRemoteService *remote);
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/**
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* @brief Releases a <b>CodecCallbackType</b> instance.
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*
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* @param instance Indicates the pointer to the <b>CodecCallbackType</b> instance to release.
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*/
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void CodecCallbackTypeRelease(struct CodecCallbackType *instance);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif // CODEC_CALLBACK_TYPE_H
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