зеркало из https://github.com/mozilla/gecko-dev.git
53 строки
1.8 KiB
C
53 строки
1.8 KiB
C
/*
|
|
* 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 "common/ivfenc.h"
|
|
|
|
#include "aom/aom_encoder.h"
|
|
#include "aom_ports/mem_ops.h"
|
|
|
|
void ivf_write_file_header(FILE *outfile, const struct aom_codec_enc_cfg *cfg,
|
|
unsigned int fourcc, int frame_cnt) {
|
|
char header[32];
|
|
|
|
header[0] = 'D';
|
|
header[1] = 'K';
|
|
header[2] = 'I';
|
|
header[3] = 'F';
|
|
mem_put_le16(header + 4, 0); // version
|
|
mem_put_le16(header + 6, 32); // header size
|
|
mem_put_le32(header + 8, fourcc); // fourcc
|
|
mem_put_le16(header + 12, cfg->g_w); // width
|
|
mem_put_le16(header + 14, cfg->g_h); // height
|
|
mem_put_le32(header + 16, cfg->g_timebase.den); // rate
|
|
mem_put_le32(header + 20, cfg->g_timebase.num); // scale
|
|
mem_put_le32(header + 24, frame_cnt); // length
|
|
mem_put_le32(header + 28, 0); // unused
|
|
|
|
fwrite(header, 1, 32, outfile);
|
|
}
|
|
|
|
void ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) {
|
|
char header[12];
|
|
|
|
mem_put_le32(header, (int)frame_size);
|
|
mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF));
|
|
mem_put_le32(header + 8, (int)(pts >> 32));
|
|
fwrite(header, 1, 12, outfile);
|
|
}
|
|
|
|
void ivf_write_frame_size(FILE *outfile, size_t frame_size) {
|
|
char header[4];
|
|
|
|
mem_put_le32(header, (int)frame_size);
|
|
fwrite(header, 1, 4, outfile);
|
|
}
|