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c294ba82e6
In fact, all the h264 bit writer have byte aligned output except the slice header. So we change the API from bit size in unit to byte size, which is easy to use. For slice header, we add a extra "trail_bits_num" to return the unaligned bits number. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3193>
89 lines
4.1 KiB
C
89 lines
4.1 KiB
C
/* GStreamer
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* Copyright (C) 2020 Intel Corporation
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* Author: He Junyan <junyan.he@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the0
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_H264_BIT_WRITER_H__
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#define __GST_H264_BIT_WRITER_H__
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#include <gst/codecparsers/codecparsers-prelude.h>
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#include <gst/codecparsers/gsth264parser.h>
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G_BEGIN_DECLS
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/**
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* GstH264BitWriterResult:
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* @GST_H264_BIT_WRITER_OK: The writing succeeded
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* @GST_H264_BIT_WRITER_INVALID_DATA: The input data to write is invalid
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* @GST_H264_BIT_WRITER_NO_MORE_SPACE: The output does not have enough size
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* @GST_H264_BIT_WRITER_ERROR: An general error occurred when writing
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*
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* The result of writing H264 data into bit stream.
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*
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* Since: 1.22
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*/
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typedef enum
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{
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GST_H264_BIT_WRITER_OK,
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GST_H264_BIT_WRITER_INVALID_DATA,
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GST_H264_BIT_WRITER_NO_MORE_SPACE,
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GST_H264_BIT_WRITER_ERROR
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} GstH264BitWriterResult;
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GST_CODEC_PARSERS_API
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GstH264BitWriterResult gst_h264_bit_writer_sps (const GstH264SPS * sps,
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gboolean start_code,
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guint8 * data,
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guint * size);
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GST_CODEC_PARSERS_API
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GstH264BitWriterResult gst_h264_bit_writer_pps (const GstH264PPS * pps,
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gboolean start_code,
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guint8 * data,
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guint * size);
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GST_CODEC_PARSERS_API
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GstH264BitWriterResult gst_h264_bit_writer_slice_hdr (const GstH264SliceHdr * slice,
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gboolean start_code,
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GstH264NalUnitType nal_type,
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gboolean is_ref,
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guint8 * data,
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guint * size,
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guint * trail_bits_num);
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GST_CODEC_PARSERS_API
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GstH264BitWriterResult gst_h264_bit_writer_sei (GArray * sei_messages,
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gboolean start_code,
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guint8 * data,
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guint * size);
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GST_CODEC_PARSERS_API
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GstH264BitWriterResult gst_h264_bit_writer_aud (guint8 primary_pic_type,
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gboolean start_code,
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guint8 * data,
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guint * size);
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GST_CODEC_PARSERS_API
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GstH264BitWriterResult gst_h264_bit_writer_convert_to_nal (guint nal_prefix_size,
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gboolean packetized,
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gboolean has_startcode,
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gboolean add_trailings,
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const guint8 * raw_data,
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gsize raw_size,
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guint8 * nal_data,
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guint * nal_size);
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G_END_DECLS
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#endif /* __GST_H264_BIT_WRITER_H__ */
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