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90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/*
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* gstvaapiutils_h26x_priv.h - H.26x related utilities
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*
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* Copyright (C) 2011-2014 Intel Corporation
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* Author: Gwenole Beauchesne
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* Copyright (C) 2017 Intel Corporation
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* Author: Hyunjun Ko <zzoon@igalia.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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* 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 this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_UTILS_H26X_PRIV_H
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#define GST_VAAPI_UTILS_H26X_PRIV_H
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#include <gst/base/gstbitwriter.h>
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G_BEGIN_DECLS
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/* Define the maximum IDR period */
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#define MAX_IDR_PERIOD 512
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/* Default CPB length (in milliseconds) */
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#define DEFAULT_CPB_LENGTH 1500
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/* Scale factor for CPB size (HRD cpb_size_scale: min = 4) */
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#define SX_CPB_SIZE 4
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/* Scale factor for bitrate (HRD bit_rate_scale: min = 6) */
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#define SX_BITRATE 6
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/* Define default rate control mode ("constant-qp") */
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#define DEFAULT_RATECONTROL GST_VAAPI_RATECONTROL_CQP
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/* ------------------------------------------------------------------------- */
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/* --- H.264/265 Bitstream Writer --- */
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/* ------------------------------------------------------------------------- */
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#define WRITE_UINT32(bs, val, nbits) \
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G_STMT_START { \
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if (!gst_bit_writer_put_bits_uint32 (bs, val, nbits)) { \
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GST_WARNING ("failed to write uint32, nbits: %d", nbits); \
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goto bs_error; \
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} \
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} G_STMT_END
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#define WRITE_UE(bs, val) \
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G_STMT_START { \
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if (!bs_write_ue (bs, val)) { \
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GST_WARNING ("failed to write ue(v)"); \
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goto bs_error; \
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} \
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} G_STMT_END
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#define WRITE_SE(bs, val) \
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G_STMT_START { \
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if (!bs_write_se (bs, val)) { \
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GST_WARNING ("failed to write se(v)"); \
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goto bs_error; \
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} \
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} G_STMT_END
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G_GNUC_INTERNAL
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gboolean
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bs_write_ue (GstBitWriter * bs, guint32 value);
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G_GNUC_INTERNAL
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gboolean
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bs_write_se (GstBitWriter * bs, gint32 value);
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/* Write nal unit, applying emulation prevention bytes */
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_utils_h26x_write_nal_unit (GstBitWriter * bs, guint8 * nal, guint nal_size);
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G_END_DECLS
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#endif /* GST_VAAPI_UTILS_H26X_PRIV_H */
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