1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_COMMON_WEBMENC_H_
#define AOM_COMMON_WEBMENC_H_
#include <stdio.h>
#include <stdlib.h>
#include "tools_common.h"
#include "aom/aom_encoder.h"
#ifdef __cplusplus
extern "C" {
#endif
struct WebmOutputContext {
int debug;
FILE *stream;
int64_t last_pts_ns;
void *writer;
void *segment;
};
/* Stereo 3D packed frame format */
enum {
STEREO_FORMAT_MONO = 0,
STEREO_FORMAT_LEFT_RIGHT = 1,
STEREO_FORMAT_BOTTOM_TOP = 2,
STEREO_FORMAT_TOP_BOTTOM = 3,
STEREO_FORMAT_RIGHT_LEFT = 11
} UENUM1BYTE(stereo_format_t);
// Simplistic mechanism to extract encoder settings, without having
// to re-invoke the entire flag-parsing logic. It lists the codec version
// and then copies the arguments as-is from argv, but skips the binary name,
// any arguments that match the input filename, and the output flags "-o"
// and "--output" (and the following argument for those flags). The caller
// is responsible for free-ing the returned string. If there is insufficient
// memory, it returns nullptr.
char *extract_encoder_settings(const char *version, const char **argv, int argc,
const char *input_fname);
// The following functions wrap libwebm's mkvmuxer. All functions return 0 upon
// success, or -1 upon failure.
int write_webm_file_header(struct WebmOutputContext *webm_ctx,
aom_codec_ctx_t *encoder_ctx,
const aom_codec_enc_cfg_t *cfg,
stereo_format_t stereo_fmt, unsigned int fourcc,
const struct AvxRational *par,
const char *encoder_settings);
int write_webm_block(struct WebmOutputContext *webm_ctx,
const aom_codec_enc_cfg_t *cfg,
const aom_codec_cx_pkt_t *pkt);
int write_webm_file_footer(struct WebmOutputContext *webm_ctx);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_COMMON_WEBMENC_H_
|
