66 строки
2.6 KiB
C
66 строки
2.6 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 <assert.h>
|
|
#include "./y4menc.h"
|
|
|
|
int y4m_write_file_header(char *buf, size_t len, int width, int height,
|
|
const struct AvxRational *framerate,
|
|
aom_img_fmt_t fmt, unsigned int bit_depth) {
|
|
const char *color;
|
|
switch (bit_depth) {
|
|
case 8:
|
|
color = fmt == AOM_IMG_FMT_444A
|
|
? "C444alpha\n"
|
|
: fmt == AOM_IMG_FMT_I444
|
|
? "C444\n"
|
|
: fmt == AOM_IMG_FMT_I422 ? "C422\n" : "C420jpeg\n";
|
|
break;
|
|
case 9:
|
|
color = fmt == AOM_IMG_FMT_I44416
|
|
? "C444p9 XYSCSS=444P9\n"
|
|
: fmt == AOM_IMG_FMT_I42216 ? "C422p9 XYSCSS=422P9\n"
|
|
: "C420p9 XYSCSS=420P9\n";
|
|
break;
|
|
case 10:
|
|
color = fmt == AOM_IMG_FMT_I44416
|
|
? "C444p10 XYSCSS=444P10\n"
|
|
: fmt == AOM_IMG_FMT_I42216 ? "C422p10 XYSCSS=422P10\n"
|
|
: "C420p10 XYSCSS=420P10\n";
|
|
break;
|
|
case 12:
|
|
color = fmt == AOM_IMG_FMT_I44416
|
|
? "C444p12 XYSCSS=444P12\n"
|
|
: fmt == AOM_IMG_FMT_I42216 ? "C422p12 XYSCSS=422P12\n"
|
|
: "C420p12 XYSCSS=420P12\n";
|
|
break;
|
|
case 14:
|
|
color = fmt == AOM_IMG_FMT_I44416
|
|
? "C444p14 XYSCSS=444P14\n"
|
|
: fmt == AOM_IMG_FMT_I42216 ? "C422p14 XYSCSS=422P14\n"
|
|
: "C420p14 XYSCSS=420P14\n";
|
|
break;
|
|
case 16:
|
|
color = fmt == AOM_IMG_FMT_I44416
|
|
? "C444p16 XYSCSS=444P16\n"
|
|
: fmt == AOM_IMG_FMT_I42216 ? "C422p16 XYSCSS=422P16\n"
|
|
: "C420p16 XYSCSS=420P16\n";
|
|
break;
|
|
default: color = NULL; assert(0);
|
|
}
|
|
return snprintf(buf, len, "YUV4MPEG2 W%u H%u F%u:%u I%c %s", width, height,
|
|
framerate->numerator, framerate->denominator, 'p', color);
|
|
}
|
|
|
|
int y4m_write_frame_header(char *buf, size_t len) {
|
|
return snprintf(buf, len, "FRAME\n");
|
|
}
|