GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/opus_metadata_bsf.c Lines: 0 6 0.0 %
Date: 2020-08-11 16:46:18 Branches: 0 2 0.0 %

Line Branch Exec Source
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
#include "bsf_internal.h"
20
#include "libavutil/intreadwrite.h"
21
#include "libavutil/opt.h"
22
23
typedef struct OpusBSFContext {
24
    const AVClass *class;
25
    int gain;
26
} OpusBSFContext;
27
28
static int opus_metadata_init(AVBSFContext *bsfc)
29
{
30
    OpusBSFContext *s = bsfc->priv_data;
31
32
    if (bsfc->par_out->extradata_size < 19)
33
        return AVERROR_INVALIDDATA;
34
35
    AV_WL16(bsfc->par_out->extradata + 16, s->gain);
36
37
    return 0;
38
}
39
40
#define OFFSET(x) offsetof(OpusBSFContext, x)
41
#define FLAGS (AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_BSF_PARAM)
42
static const AVOption opus_metadata_options[] = {
43
    { "gain", "Gain, actual amplification is pow(10, gain/(20.0*256))", OFFSET(gain),
44
      AV_OPT_TYPE_INT, { .i64 = 0 }, -(INT16_MAX + 1), INT16_MAX, .flags = FLAGS },
45
46
    { NULL },
47
};
48
49
static const AVClass opus_metadata_class = {
50
    .class_name = "opus_metadata_bsf",
51
    .item_name  = av_default_item_name,
52
    .option     = opus_metadata_options,
53
    .version    = LIBAVUTIL_VERSION_INT,
54
};
55
56
static const enum AVCodecID codec_ids[] = {
57
    AV_CODEC_ID_OPUS, AV_CODEC_ID_NONE,
58
};
59
60
const AVBitStreamFilter ff_opus_metadata_bsf = {
61
    .name           = "opus_metadata",
62
    .priv_data_size = sizeof(OpusBSFContext),
63
    .priv_class     = &opus_metadata_class,
64
    .init           = &opus_metadata_init,
65
    .filter         = &ff_bsf_get_packet_ref,
66
    .codec_ids      = codec_ids,
67
};