blob: 2e8e04283ab773a25efa0b1830c404a54e08f788 [file] [log] [blame] [edit]
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "./ivfenc.h"
#include "vpx/vpx_encoder.h"
#include "vpx_ports/mem_ops.h"
void ivf_write_file_header_with_video_info(FILE *outfile, unsigned int fourcc,
int frame_cnt, int frame_width,
int frame_height,
vpx_rational_t timebase) {
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, frame_width); // width
mem_put_le16(header + 14, frame_height); // height
mem_put_le32(header + 16, timebase.den); // rate
mem_put_le32(header + 20, 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_file_header(FILE *outfile, const struct vpx_codec_enc_cfg *cfg,
unsigned int fourcc, int frame_cnt) {
ivf_write_file_header_with_video_info(outfile, fourcc, frame_cnt, cfg->g_w,
cfg->g_h, cfg->g_timebase);
}
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);
}