Harish Mahendrakar | 0d8951c | 2014-05-16 10:31:13 -0700 | [diff] [blame^] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ******************************************************************************/ |
| 18 | /** |
| 19 | ******************************************************************************* |
| 20 | * @file |
| 21 | * ihevcd_nal.h |
| 22 | * |
| 23 | * @brief |
| 24 | * Header for NAL related function |
| 25 | * |
| 26 | * @author |
| 27 | * Harish |
| 28 | * |
| 29 | * @par List of Functions: |
| 30 | * |
| 31 | * @remarks |
| 32 | * None |
| 33 | * |
| 34 | ******************************************************************************* |
| 35 | */ |
| 36 | |
| 37 | #ifndef _IHEVCD_NAL_H_ |
| 38 | #define _IHEVCD_NAL_H_ |
| 39 | /** |
| 40 | * Minimum size of start code including NAL type |
| 41 | */ |
| 42 | |
| 43 | #define MIN_START_CODE_LEN 4 |
| 44 | /** |
| 45 | * Start code prefix byte - 1 |
| 46 | */ |
| 47 | #define START_CODE_PREFIX_BYTE 1 |
| 48 | |
| 49 | /** |
| 50 | * Emulation prevention byte - 3 |
| 51 | */ |
| 52 | |
| 53 | #define EMULATION_PREVENT_BYTE 3 |
| 54 | /** |
| 55 | * Minimum number of zeros before start code |
| 56 | */ |
| 57 | #define NUM_ZEROS_BEFORE_START_CODE 2 |
| 58 | |
| 59 | |
| 60 | WORD32 ihevcd_nal_search_start_code(UWORD8 *pu1_buf, WORD32 bytes_remaining); |
| 61 | |
| 62 | IHEVCD_ERROR_T ihevcd_nal_remv_emuln_bytes(UWORD8 *pu1_src, |
| 63 | UWORD8 *pu1_dst, |
| 64 | WORD32 bytes_remaining, |
| 65 | WORD32 *pi4_nal_len, |
| 66 | WORD32 *pi4_dst_len); |
| 67 | |
| 68 | IHEVCD_ERROR_T ihevcd_nal_unit(codec_t *ps_codec); |
| 69 | #endif /* _IHEVCD_NAL_H_ */ |