FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/yuv4enc.c
Date: 2024-04-19 17:50:32
Exec Total Coverage
Lines: 22 30 73.3%
Functions: 1 1 100.0%
Branches: 6 10 60.0%

Line Branch Exec Source
1 /*
2 * libquicktime yuv4 encoder
3 *
4 * Copyright (c) 2011 Carl Eugen Hoyos
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include "avcodec.h"
24 #include "codec_internal.h"
25 #include "encode.h"
26
27 200 static int yuv4_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
28 const AVFrame *pic, int *got_packet)
29 {
30 uint8_t *dst;
31 const uint8_t *y, *u, *v;
32 int ret;
33
34 200 ret = ff_get_encode_buffer(avctx, pkt, 6 * ((avctx->width + 1) / 2)
35 200 * ((avctx->height + 1) / 2), 0);
36
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200 if (ret < 0)
37 return ret;
38 200 dst = pkt->data;
39
40 200 y = pic->data[0];
41 200 u = pic->data[1];
42 200 v = pic->data[2];
43
44
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22650 for (int i = 0; i < avctx->height / 2; i++) {
45
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3838500 for (int j = 0; j < (avctx->width + 1) / 2; j++) {
46 3816050 *dst++ = u[j] ^ 0x80;
47 3816050 *dst++ = v[j] ^ 0x80;
48 3816050 *dst++ = y[ 2 * j ];
49 3816050 *dst++ = y[ 2 * j + 1];
50 3816050 *dst++ = y[pic->linesize[0] + 2 * j ];
51 3816050 *dst++ = y[pic->linesize[0] + 2 * j + 1];
52 }
53 22450 y += 2 * pic->linesize[0];
54 22450 u += pic->linesize[1];
55 22450 v += pic->linesize[2];
56 }
57
58
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200 if (avctx->height & 1) {
59 for (int j = 0; j < (avctx->width + 1) / 2; j++) {
60 *dst++ = u[j] ^ 0x80;
61 *dst++ = v[j] ^ 0x80;
62 *dst++ = y[2 * j ];
63 *dst++ = y[2 * j + 1];
64 *dst++ = y[2 * j ];
65 *dst++ = y[2 * j + 1];
66 }
67 }
68
69 200 *got_packet = 1;
70 200 return 0;
71 }
72
73 const FFCodec ff_yuv4_encoder = {
74 .p.name = "yuv4",
75 CODEC_LONG_NAME("Uncompressed packed 4:2:0"),
76 .p.type = AVMEDIA_TYPE_VIDEO,
77 .p.id = AV_CODEC_ID_YUV4,
78 .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
79 .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
80 FF_CODEC_ENCODE_CB(yuv4_encode_frame),
81 };
82