gstreamer/gst-libs/gst/vaapi/gstvaapiutils_h26x_priv.h

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/*
* gstvaapiutils_h26x_priv.h - H.26x related utilities
*
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne
* Copyright (C) 2017 Intel Corporation
* Author: Hyunjun Ko <zzoon@igalia.com>
*
* This library 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.
*
* This library 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 this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GST_VAAPI_UTILS_H26X_PRIV_H
#define GST_VAAPI_UTILS_H26X_PRIV_H
#include <gst/base/gstbitwriter.h>
G_BEGIN_DECLS
/* Define the maximum IDR period */
#define MAX_IDR_PERIOD 512
/* Default CPB length (in milliseconds) */
#define DEFAULT_CPB_LENGTH 1500
/* Scale factor for CPB size (HRD cpb_size_scale: min = 4) */
#define SX_CPB_SIZE 4
/* Scale factor for bitrate (HRD bit_rate_scale: min = 6) */
#define SX_BITRATE 6
/* Define default rate control mode ("constant-qp") */
#define DEFAULT_RATECONTROL GST_VAAPI_RATECONTROL_CQP
/* ------------------------------------------------------------------------- */
/* --- H.264/265 Bitstream Writer --- */
/* ------------------------------------------------------------------------- */
#define WRITE_UINT32(bs, val, nbits) \
G_STMT_START { \
if (!gst_bit_writer_put_bits_uint32 (bs, val, nbits)) { \
GST_WARNING ("failed to write uint32, nbits: %d", nbits); \
goto bs_error; \
} \
} G_STMT_END
#define WRITE_UE(bs, val) \
G_STMT_START { \
if (!bs_write_ue (bs, val)) { \
GST_WARNING ("failed to write ue(v)"); \
goto bs_error; \
} \
} G_STMT_END
#define WRITE_SE(bs, val) \
G_STMT_START { \
if (!bs_write_se (bs, val)) { \
GST_WARNING ("failed to write se(v)"); \
goto bs_error; \
} \
} G_STMT_END
G_GNUC_INTERNAL
gboolean
bs_write_ue (GstBitWriter * bs, guint32 value);
G_GNUC_INTERNAL
gboolean
bs_write_se (GstBitWriter * bs, gint32 value);
/* Write nal unit, applying emulation prevention bytes */
G_GNUC_INTERNAL
gboolean
gst_vaapi_utils_h26x_write_nal_unit (GstBitWriter * bs, guint8 * nal, guint nal_size);
G_END_DECLS
#endif /* GST_VAAPI_UTILS_H26X_PRIV_H */