mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-23 11:19:55 +00:00
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
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_CBS_H2645_H
|
|
#define AVCODEC_CBS_H2645_H
|
|
|
|
#include "h2645_parse.h"
|
|
|
|
|
|
typedef struct CodedBitstreamH2645Context {
|
|
// If set, the stream being read is in MP4 (AVCC/HVCC) format. If not
|
|
// set, the stream is assumed to be in annex B format.
|
|
int mp4;
|
|
// Size in bytes of the NAL length field for MP4 format.
|
|
int nal_length_size;
|
|
// Packet reader.
|
|
H2645Packet read_packet;
|
|
} CodedBitstreamH2645Context;
|
|
|
|
|
|
#endif /* AVCODEC_CBS_H2645_H */
|