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https://git.ffmpeg.org/ffmpeg.git
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f89825e60a
This commit only factors out freeing the common SEI parts, not whether the fields indicating whether an SEI is present shall be reset. H.264 and HEVC differ in this regard (ff_h264_sei_uninit() really resets, whereas ff_hevc_reset_sei() only uninits.) and neither actually honours the persistency as prescribed by the relevant specs. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*
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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 HEVCSEIMasteringDisplay {
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int present;
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uint16_t display_primaries[3][2];
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uint16_t white_point[2];
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uint32_t max_luminance;
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uint32_t min_luminance;
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} HEVCSEIMasteringDisplay;
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typedef struct HEVCSEIContentLight {
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int present;
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uint16_t max_content_light_level;
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uint16_t max_pic_average_light_level;
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} HEVCSEIContentLight;
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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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HEVCSEIMasteringDisplay mastering_display;
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HEVCSEIContentLight content_light;
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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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