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7c92eaace2
All cbs-functions to write units share a common pattern: 1. They check whether they have a write buffer (that is used to store the unit's data until the needed size becomes known after writing the unit when a dedicated buffer will be allocated). 2. They use this buffer for a PutBitContext. 3. The (codec-specific) writing takes place through the PutBitContext. 4. The return value is checked. AVERROR(ENOSPC) here always indicates that the buffer was too small and leads to a reallocation of said buffer. 5. The final buffer will be allocated and the data copied. This commit factors this common code out in a single function in cbs.c. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/*
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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_CBS_H2645_H
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#define AVCODEC_CBS_H2645_H
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#include "h2645_parse.h"
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typedef struct CodedBitstreamH2645Context {
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// If set, the stream being read is in MP4 (AVCC/HVCC) format. If not
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// set, the stream is assumed to be in annex B format.
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int mp4;
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// Size in bytes of the NAL length field for MP4 format.
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int nal_length_size;
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// Packet reader.
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H2645Packet read_packet;
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} CodedBitstreamH2645Context;
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#endif /* AVCODEC_CBS_H2645_H */
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