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88 lines
2.1 KiB
88 lines
2.1 KiB
/* |
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* H.264/HEVC common parsing code |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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_H2645_PARSE_H |
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#define AVCODEC_H2645_PARSE_H |
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#include <stdint.h> |
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#include "avcodec.h" |
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#include "get_bits.h" |
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typedef struct H2645NAL { |
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uint8_t *rbsp_buffer; |
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int rbsp_buffer_size; |
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int size; |
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const uint8_t *data; |
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/** |
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* Size, in bits, of just the data, excluding the stop bit and any trailing |
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* padding. I.e. what HEVC calls SODB. |
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*/ |
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int size_bits; |
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int raw_size; |
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const uint8_t *raw_data; |
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GetBitContext gb; |
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/** |
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* NAL unit type |
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*/ |
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int type; |
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/** |
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* HEVC only, nuh_temporal_id_plus_1 - 1 |
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*/ |
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int temporal_id; |
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/** |
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* H264 only, nal_ref_idc |
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*/ |
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int ref_idc; |
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} H2645NAL; |
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/* an input packet split into unescaped NAL units */ |
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typedef struct H2645Packet { |
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H2645NAL *nals; |
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int nb_nals; |
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int nals_allocated; |
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} H2645Packet; |
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/** |
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* Extract the raw (unescaped) bitstream. |
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*/ |
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int ff_h2645_extract_rbsp(const uint8_t *src, int length, |
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H2645NAL *nal); |
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/** |
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* Split an input packet into NAL units. |
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*/ |
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int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length, |
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void *logctx, int is_nalff, int nal_length_size, |
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enum AVCodecID codec_id); |
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/** |
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* Free all the allocated memory in the packet. |
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*/ |
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void ff_h2645_packet_uninit(H2645Packet *pkt); |
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#endif /* AVCODEC_H2645_PARSE_H */
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