avcodec: add a public function, avcodec_fill_audio_frame().
[libav.git] / libavcodec / internal.h
CommitLineData
dbbec0c2 1/*
2912e87a 2 * This file is part of Libav.
dbbec0c2 3 *
2912e87a 4 * Libav is free software; you can redistribute it and/or
dbbec0c2
SS
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 *
2912e87a 9 * Libav is distributed in the hope that it will be useful,
dbbec0c2
SS
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
2912e87a 15 * License along with Libav; if not, write to the Free Software
dbbec0c2
SS
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19/**
ba87f080 20 * @file
dbbec0c2
SS
21 * common internal api header.
22 */
23
24#ifndef AVCODEC_INTERNAL_H
25#define AVCODEC_INTERNAL_H
26
a05aa821 27#include <stdint.h>
f3a29b75
JR
28
29#include "libavutil/pixfmt.h"
a05aa821
MN
30#include "avcodec.h"
31
f3a29b75 32typedef struct InternalBuffer {
0eea2129
JR
33 uint8_t *base[AV_NUM_DATA_POINTERS];
34 uint8_t *data[AV_NUM_DATA_POINTERS];
35 int linesize[AV_NUM_DATA_POINTERS];
f3a29b75
JR
36 int width;
37 int height;
38 enum PixelFormat pix_fmt;
0eea2129
JR
39 uint8_t **extended_data;
40 int audio_data_size;
41 int nb_channels;
f3a29b75
JR
42} InternalBuffer;
43
44typedef struct AVCodecInternal {
45 /**
46 * internal buffer count
47 * used by default get/release/reget_buffer().
48 */
49 int buffer_count;
50
51 /**
52 * internal buffers
53 * used by default get/release/reget_buffer().
54 */
55 InternalBuffer *buffer;
56
57 /**
58 * Whether the parent AVCodecContext is a copy of the context which had
59 * init() called on it.
60 * This is used by multithreading - shared tables and picture pointers
61 * should be freed from the original context only.
62 */
63 int is_copy;
64} AVCodecInternal;
65
84626b36
AK
66struct AVCodecDefault {
67 const uint8_t *key;
68 const uint8_t *value;
69};
70
dbbec0c2 71/**
49bd8e4b 72 * Determine whether pix_fmt is a hardware accelerated format.
d7dae42e
GB
73 */
74int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
75
76/**
49bd8e4b 77 * Return the hardware accelerated codec for codec codec_id and
bf7e799c 78 * pixel format pix_fmt.
a05aa821
MN
79 *
80 * @param codec_id the codec to match
81 * @param pix_fmt the pixel format to match
82 * @return the hardware accelerated codec, or NULL if none was found.
83 */
84AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
85
9e2e8214
MN
86/**
87 * Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
88 * If there is no such matching pair then size is returned.
89 */
6c060b55
MN
90int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
91
0842d589 92unsigned int avpriv_toupper4(unsigned int x);
603a5f04 93
2d1b6fb7
MS
94int avpriv_lock_avformat(void);
95int avpriv_unlock_avformat(void);
96
4df30f71
AC
97/**
98 * Maximum size in bytes of extradata.
99 * This value was chosen such that every bit of the buffer is
100 * addressable by a 32-bit signed integer as used by get_bits.
101 */
102#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
103
dbbec0c2 104#endif /* AVCODEC_INTERNAL_H */