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, const struct vpx_codec_enc_cfg *cfg,
17                           unsigned int fourcc, int frame_cnt) {
18  char header[32];
19
20  header[0] = 'D';
21  header[1] = 'K';
22  header[2] = 'I';
23  header[3] = 'F';
24  mem_put_le16(header + 4, 0);                     // version
25  mem_put_le16(header + 6, 32);                    // header size
26  mem_put_le32(header + 8, fourcc);                // fourcc
27  mem_put_le16(header + 12, cfg->g_w);             // width
28  mem_put_le16(header + 14, cfg->g_h);             // height
29  mem_put_le32(header + 16, cfg->g_timebase.den);  // rate
30  mem_put_le32(header + 20, cfg->g_timebase.num);  // scale
31  mem_put_le32(header + 24, frame_cnt);            // length
32  mem_put_le32(header + 28, 0);                    // unused
33
34  fwrite(header, 1, 32, outfile);
35}
36
37void ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) {
38  char header[12];
39
40  mem_put_le32(header, (int)frame_size);
41  mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF));
42  mem_put_le32(header + 8, (int)(pts >> 32));
43  fwrite(header, 1, 12, outfile);
44}
45
46void ivf_write_frame_size(FILE *outfile, size_t frame_size) {
47  char header[4];
48
49  mem_put_le32(header, (int)frame_size);
50  fwrite(header, 1, 4, outfile);
51}
52