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
72
73
74
75
76
77
|
/*
* 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.
*/
#include <stdlib.h>
#include "./ivfenc.h"
#include "./video_writer.h"
#include "aom/aom_encoder.h"
struct AvxVideoWriterStruct {
AvxVideoInfo info;
FILE *file;
int frame_count;
};
static void write_header(FILE *file, const AvxVideoInfo *info,
int frame_count) {
struct aom_codec_enc_cfg cfg;
cfg.g_w = info->frame_width;
cfg.g_h = info->frame_height;
cfg.g_timebase.num = info->time_base.numerator;
cfg.g_timebase.den = info->time_base.denominator;
ivf_write_file_header(file, &cfg, info->codec_fourcc, frame_count);
}
AvxVideoWriter *aom_video_writer_open(const char *filename,
AvxContainer container,
const AvxVideoInfo *info) {
if (container == kContainerIVF) {
AvxVideoWriter *writer = NULL;
FILE *const file = fopen(filename, "wb");
if (!file) return NULL;
writer = malloc(sizeof(*writer));
if (!writer) return NULL;
writer->frame_count = 0;
writer->info = *info;
writer->file = file;
write_header(writer->file, info, 0);
return writer;
}
return NULL;
}
void aom_video_writer_close(AvxVideoWriter *writer) {
if (writer) {
// Rewriting frame header with real frame count
rewind(writer->file);
write_header(writer->file, &writer->info, writer->frame_count);
fclose(writer->file);
free(writer);
}
}
int aom_video_writer_write_frame(AvxVideoWriter *writer, const uint8_t *buffer,
size_t size, int64_t pts) {
ivf_write_frame_header(writer->file, pts, size);
if (fwrite(buffer, 1, size, writer->file) != size) return 0;
++writer->frame_count;
return 1;
}
|
