lavc: VAAPI H.264 encoder
[libav.git] / libavcodec / vaapi_encode_h26x.h
1 /*
2 * This file is part of Libav.
3 *
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #ifndef AVCODEC_VAAPI_ENCODE_H26X_H
20 #define AVCODEC_VAAPI_ENCODE_H26X_H
21
22 #include <stddef.h>
23 #include <stdint.h>
24
25 #include "golomb.h"
26 #include "put_bits.h"
27
28
29 // Debug code may be interested in the name of the syntax element being
30 // for tracing purposes. Here, it is just discarded.
31
32 #define write_u(pbc, width, value, name) put_bits(pbc, width, value)
33 #define write_ue(pbc, value, name) set_ue_golomb(pbc, value)
34 #define write_se(pbc, value, name) set_se_golomb(pbc, value)
35
36 #define u(width, ...) write_u(pbc, width, __VA_ARGS__)
37 #define ue(...) write_ue(pbc, __VA_ARGS__)
38 #define se(...) write_se(pbc, __VA_ARGS__)
39
40
41 // Copy from src to dst, applying emulation prevention.
42 int ff_vaapi_encode_h26x_nal_unit_to_byte_stream(uint8_t *dst, size_t *dst_len,
43 uint8_t *src, size_t src_len);
44
45 #endif /* AVCODEC_VAAPI_ENCODE_H26X_H */