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cd311d877f
Signed-off-by: Herman Chen <herman.chen@rock-chips.com> Change-Id: Ib594afdd25a0e4283612fd5808a27b229d40f597
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*
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* Copyright 2016 Rockchip Electronics Co. LTD
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*
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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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#ifndef __RC_H__
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#define __RC_H__
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#include "mpp_err.h"
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#include "mpp_rc_api.h"
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/*
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* Mpp rate control principle
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*
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* 1. Rate control information is composed by these parts:
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* a. configuration from mpp user.
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* b. frame level target bitrate calculated by different RC model.
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* c. block level hardware related configuration to hardware.
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* d. statistic information from hardware after one frame is encoded.
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*
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* 2. All the above informatioin is storaged and managed by RcDataCtx in mpp
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* framework. All these information is shared in encoder and hal module.
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*
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* 3. User (no matter developer or end user) defined rate control should based
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* on these Rate control information and implement its own rate control
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* strategy module by providing their own RcImplApi.
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*/
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/*
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* Relation between mpp_enc / enc_impl / hal / RcApi / RcImplApi / RcData
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*
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* +-----------+
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* | mpp_enc |
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* +-----+-----+
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* |
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* +-----+-----+ +-----------+ +-----------+
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* | enc_impl +---> RcApi +---> RcImplApi |
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* +-----+-----+ +-----+-----+ +-----+-----+
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* | \ / | |
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* | + | |
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* | / \ | |
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* +-----v-----+ +-----v-----+ |
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* | hal +---> RcData <---------+
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* +-----------+ +-----------+
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*/
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typedef void* RcCtx;
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#ifdef __cplusplus
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extern "C" {
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#endif
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MPP_RET rc_init(RcCtx *ctx, MppCodingType type, const char **request_name);
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MPP_RET rc_deinit(RcCtx ctx);
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/* update rc control */
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MPP_RET rc_update_usr_cfg(RcCtx ctx, RcCfg *cfg);
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/* Frame rate convertion */
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MPP_RET rc_frm_check_drop(RcCtx ctx, EncRcTask *task);
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/* Frame reenc check */
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MPP_RET rc_frm_check_reenc(RcCtx ctx, EncRcTask *task);
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/* Frame level rate and quality control */
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MPP_RET rc_frm_start(RcCtx ctx, EncRcTask *task);
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MPP_RET rc_frm_end(RcCtx ctx, EncRcTask *task);
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MPP_RET rc_hal_start(RcCtx ctx, EncRcTask *task);
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MPP_RET rc_hal_end(RcCtx ctx, EncRcTask *task);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __RC_H__ */
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