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/* |
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* HEVC Supplementary Enhancement Information messages |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_HEVC_SEI_H |
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#define AVCODEC_HEVC_SEI_H |
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#include <stdint.h> |
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#include "libavutil/buffer.h" |
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#include "get_bits.h" |
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#include "hevc.h" |
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#include "h2645_sei.h" |
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#include "sei.h" |
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typedef enum { |
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HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING = 7, |
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HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING = 8 |
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} HEVC_SEI_PicStructType; |
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typedef struct HEVCSEIPictureHash { |
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uint8_t md5[3][16]; |
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uint8_t is_md5; |
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} HEVCSEIPictureHash; |
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typedef struct HEVCSEIFramePacking { |
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int present; |
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int arrangement_type; |
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int content_interpretation_type; |
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int quincunx_subsampling; |
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int current_frame_is_frame0_flag; |
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} HEVCSEIFramePacking; |
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typedef struct HEVCSEIPictureTiming { |
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int picture_struct; |
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} HEVCSEIPictureTiming; |
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typedef struct HEVCSEIAlternativeTransfer { |
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int present; |
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int preferred_transfer_characteristics; |
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} HEVCSEIAlternativeTransfer; |
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typedef struct HEVCSEITimeCode { |
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int present; |
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uint8_t num_clock_ts; |
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uint8_t clock_timestamp_flag[3]; |
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uint8_t units_field_based_flag[3]; |
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uint8_t counting_type[3]; |
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uint8_t full_timestamp_flag[3]; |
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uint8_t discontinuity_flag[3]; |
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uint8_t cnt_dropped_flag[3]; |
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uint16_t n_frames[3]; |
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uint8_t seconds_value[3]; |
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uint8_t minutes_value[3]; |
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uint8_t hours_value[3]; |
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uint8_t seconds_flag[3]; |
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uint8_t minutes_flag[3]; |
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uint8_t hours_flag[3]; |
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uint8_t time_offset_length[3]; |
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int32_t time_offset_value[3]; |
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} HEVCSEITimeCode; |
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typedef struct HEVCSEI { |
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H2645SEI common; |
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HEVCSEIPictureHash picture_hash; |
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HEVCSEIPictureTiming picture_timing; |
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int active_seq_parameter_set_id; |
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HEVCSEITimeCode timecode; |
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} HEVCSEI; |
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struct HEVCParamSets; |
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int ff_hevc_decode_nal_sei(GetBitContext *gb, void *logctx, HEVCSEI *s, |
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const struct HEVCParamSets *ps, enum HEVCNALUnitType type); |
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static inline int ff_hevc_sei_ctx_replace(HEVCSEI *dst, const HEVCSEI *src) |
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{ |
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return ff_h2645_sei_ctx_replace(&dst->common, &src->common); |
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} |
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/** |
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* Reset SEI values that are stored on the Context. |
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* e.g. Caption data that was extracted during NAL |
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* parsing. |
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* |
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* @param sei HEVCSEI. |
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*/ |
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static inline void ff_hevc_reset_sei(HEVCSEI *sei) |
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{ |
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ff_h2645_sei_reset(&sei->common); |
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} |
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#endif /* AVCODEC_HEVC_SEI_H */ |
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