1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19/**
20 * @file libavcodec/internal.h
21 * common internal api header.
22 */
23
24#ifndef AVCODEC_INTERNAL_H
25#define AVCODEC_INTERNAL_H
26
27#include <stdint.h>
28#include "avcodec.h"
29
30/**
31 * Logs a generic warning message about a missing feature.
32 * @param[in] avc a pointer to an arbitrary struct of which the first field is
33 * a pointer to an AVClass struct
34 * @param[in] feature string containing the name of the missing feature
35 * @param[in] want_sample indicates if samples are wanted which exhibit this feature.
36 * If \p want_sample is non-zero, additional verbage will be added to the log
37 * message which tells the user how to report samples to the development
38 * mailing list.
39 */
40void ff_log_missing_feature(void *avc, const char *feature, int want_sample);
41
42/**
43 * Logs a generic warning message asking for a sample.
44 * @param[in] avc a pointer to an arbitrary struct of which the first field is
45 * a pointer to an AVClass struct
46 * @param[in] msg string containing an optional message, or NULL if no message
47 */
48void ff_log_ask_for_sample(void *avc, const char *msg);
49
50/**
51 * Determines whether \p pix_fmt is a hardware accelerated format.
52 */
53int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
54
55/**
56 * Returns the hardware accelerated codec for codec \p codec_id and
57 * pixel format \p pix_fmt.
58 *
59 * @param codec_id the codec to match
60 * @param pix_fmt the pixel format to match
61 * @return the hardware accelerated codec, or NULL if none was found.
62 */
63AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
64
65#endif /* AVCODEC_INTERNAL_H */
66