103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/*
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* Copyright © 2018, VideoLAN and dav1d authors
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* Copyright © 2018, Two Orioles, LLC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "output/muxer.h"
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typedef struct MuxerPriv {
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FILE *f;
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} YuvOutputContext;
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static int yuv_open(YuvOutputContext *const c, const char *const file,
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const Dav1dPictureParameters *const p,
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const unsigned fps[2])
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{
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if (!strcmp(file, "-")) {
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c->f = stdout;
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} else if (!(c->f = fopen(file, "wb"))) {
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fprintf(stderr, "Failed to open %s: %s\n", file, strerror(errno));
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return -1;
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}
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return 0;
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}
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static int yuv_write(YuvOutputContext *const c, Dav1dPicture *const p) {
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uint8_t *ptr;
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const int hbd = p->p.bpc > 8;
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ptr = p->data[0];
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for (int y = 0; y < p->p.h; y++) {
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if (fwrite(ptr, p->p.w << hbd, 1, c->f) != 1)
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goto error;
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ptr += p->stride[0];
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}
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if (p->p.layout != DAV1D_PIXEL_LAYOUT_I400) {
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// u/v
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const int ss_ver = p->p.layout == DAV1D_PIXEL_LAYOUT_I420;
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const int ss_hor = p->p.layout != DAV1D_PIXEL_LAYOUT_I444;
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const int cw = (p->p.w + ss_hor) >> ss_hor;
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const int ch = (p->p.h + ss_ver) >> ss_ver;
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for (int pl = 1; pl <= 2; pl++) {
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ptr = p->data[pl];
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for (int y = 0; y < ch; y++) {
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if (fwrite(ptr, cw << hbd, 1, c->f) != 1)
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goto error;
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ptr += p->stride[1];
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}
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}
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}
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dav1d_picture_unref(p);
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return 0;
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error:
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dav1d_picture_unref(p);
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fprintf(stderr, "Failed to write frame data: %s\n", strerror(errno));
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return -1;
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}
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static void yuv_close(YuvOutputContext *const c) {
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if (c->f != stdout)
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fclose(c->f);
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}
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const Muxer yuv_muxer = {
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.priv_data_size = sizeof(YuvOutputContext),
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.name = "yuv",
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.extension = "yuv",
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.write_header = yuv_open,
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.write_picture = yuv_write,
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.write_trailer = yuv_close,
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};
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