ref: c382136122ce7bb96e207e9f7ae646c656f7ff73
dir: /ivfenc.c/
/*
* 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 "./tools_common.h"
#include "vpx/vpx_encoder.h"
#include "vpx_ports/mem_ops.h"
void ivf_write_file_header(FILE *outfile,
const struct vpx_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); /* headersize */
mem_put_le32(header + 8, fourcc); /* four CC */
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 */
(void) fwrite(header, 1, 32, outfile);
}
void ivf_write_frame_header(FILE *outfile, const struct vpx_codec_cx_pkt *pkt) {
char header[12];
vpx_codec_pts_t pts;
pts = pkt->data.frame.pts;
mem_put_le32(header, (int)pkt->data.frame.sz);
mem_put_le32(header + 4, pts & 0xFFFFFFFF);
mem_put_le32(header + 8, pts >> 32);
(void) fwrite(header, 1, 12, outfile);
}
void ivf_write_frame_size(FILE *outfile, size_t size) {
char header[4];
mem_put_le32(header, (int)size);
(void) fwrite(header, 1, 4, outfile);
}