1/*
2 *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "./ivfenc.h"
12
13#include "vpx/vpx_encoder.h"
14#include "vpx_ports/mem_ops.h"
15
16void ivf_write_file_header(FILE *outfile,
17                           const struct vpx_codec_enc_cfg *cfg,
18                           unsigned int fourcc,
19                           int frame_cnt) {
20  char header[32];
21
22  header[0] = 'D';
23  header[1] = 'K';
24  header[2] = 'I';
25  header[3] = 'F';
26  mem_put_le16(header + 4, 0);                     // version
27  mem_put_le16(header + 6, 32);                    // header size
28  mem_put_le32(header + 8, fourcc);                // fourcc
29  mem_put_le16(header + 12, cfg->g_w);             // width
30  mem_put_le16(header + 14, cfg->g_h);             // height
31  mem_put_le32(header + 16, cfg->g_timebase.den);  // rate
32  mem_put_le32(header + 20, cfg->g_timebase.num);  // scale
33  mem_put_le32(header + 24, frame_cnt);            // length
34  mem_put_le32(header + 28, 0);                    // unused
35
36  fwrite(header, 1, 32, outfile);
37}
38
39void ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) {
40  char header[12];
41
42  mem_put_le32(header, (int)frame_size);
43  mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF));
44  mem_put_le32(header + 8, (int)(pts >> 32));
45  fwrite(header, 1, 12, outfile);
46}
47
48void ivf_write_frame_size(FILE *outfile, size_t frame_size) {
49  char header[4];
50
51  mem_put_le32(header, (int)frame_size);
52  fwrite(header, 1, 4, outfile);
53}
54