1 /*
2 * Copyright © 2018, VideoLAN and dav1d authors
3 * Copyright © 2018, Two Orioles, LLC
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 * list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include "config.h"
29
30 #include <errno.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <sys/stat.h>
35
36 #include "output/muxer.h"
37
38 typedef struct MuxerPriv {
39 FILE *f;
40 } YuvOutputContext;
41
yuv_open(YuvOutputContext * const c,const char * const file,const Dav1dPictureParameters * const p,const unsigned fps[2])42 static int yuv_open(YuvOutputContext *const c, const char *const file,
43 const Dav1dPictureParameters *const p,
44 const unsigned fps[2])
45 {
46 if (!strcmp(file, "-")) {
47 c->f = stdout;
48 } else if (!(c->f = fopen(file, "wb"))) {
49 fprintf(stderr, "Failed to open %s: %s\n", file, strerror(errno));
50 return -1;
51 }
52
53 return 0;
54 }
55
yuv_write(YuvOutputContext * const c,Dav1dPicture * const p)56 static int yuv_write(YuvOutputContext *const c, Dav1dPicture *const p) {
57 uint8_t *ptr;
58 const int hbd = p->p.bpc > 8;
59
60 ptr = p->data[0];
61 for (int y = 0; y < p->p.h; y++) {
62 if (fwrite(ptr, p->p.w << hbd, 1, c->f) != 1)
63 goto error;
64 ptr += p->stride[0];
65 }
66
67 if (p->p.layout != DAV1D_PIXEL_LAYOUT_I400) {
68 // u/v
69 const int ss_ver = p->p.layout == DAV1D_PIXEL_LAYOUT_I420;
70 const int ss_hor = p->p.layout != DAV1D_PIXEL_LAYOUT_I444;
71 const int cw = (p->p.w + ss_hor) >> ss_hor;
72 const int ch = (p->p.h + ss_ver) >> ss_ver;
73 for (int pl = 1; pl <= 2; pl++) {
74 ptr = p->data[pl];
75 for (int y = 0; y < ch; y++) {
76 if (fwrite(ptr, cw << hbd, 1, c->f) != 1)
77 goto error;
78 ptr += p->stride[1];
79 }
80 }
81 }
82
83 dav1d_picture_unref(p);
84 return 0;
85
86 error:
87 dav1d_picture_unref(p);
88 fprintf(stderr, "Failed to write frame data: %s\n", strerror(errno));
89 return -1;
90 }
91
yuv_close(YuvOutputContext * const c)92 static void yuv_close(YuvOutputContext *const c) {
93 if (c->f != stdout)
94 fclose(c->f);
95 }
96
97 const Muxer yuv_muxer = {
98 .priv_data_size = sizeof(YuvOutputContext),
99 .name = "yuv",
100 .extension = "yuv",
101 .write_header = yuv_open,
102 .write_picture = yuv_write,
103 .write_trailer = yuv_close,
104 };
105