FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/v408dec.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 27 34 79.4%
Branches: 7 10 70.0%

Line Branch Exec Source
1 /*
2 * v408 decoder
3 * Copyright (c) 2012 Carl Eugen Hoyos
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "avcodec.h"
23 #include "internal.h"
24
25 8 static av_cold int v408_decode_init(AVCodecContext *avctx)
26 {
27 8 avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
28
29 8 return 0;
30 }
31
32 200 static int v408_decode_frame(AVCodecContext *avctx, void *data,
33 int *got_frame, AVPacket *avpkt)
34 {
35 200 AVFrame *pic = data;
36 200 const uint8_t *src = avpkt->data;
37 uint8_t *y, *u, *v, *a;
38 int i, j, ret;
39
40
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200 if (avpkt->size < 4 * avctx->height * avctx->width) {
41 av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
42 return AVERROR(EINVAL);
43 }
44
45
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200 if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
46 return ret;
47
48 200 pic->key_frame = 1;
49 200 pic->pict_type = AV_PICTURE_TYPE_I;
50
51 200 y = pic->data[0];
52 200 u = pic->data[1];
53 200 v = pic->data[2];
54 200 a = pic->data[3];
55
56
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45100 for (i = 0; i < avctx->height; i++) {
57
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15309100 for (j = 0; j < avctx->width; j++) {
58
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15264200 if (avctx->codec_id==AV_CODEC_ID_AYUV) {
59 v[j] = *src++;
60 u[j] = *src++;
61 y[j] = *src++;
62 a[j] = *src++;
63 } else {
64 15264200 u[j] = *src++;
65 15264200 y[j] = *src++;
66 15264200 v[j] = *src++;
67 15264200 a[j] = *src++;
68 }
69 }
70
71 44900 y += pic->linesize[0];
72 44900 u += pic->linesize[1];
73 44900 v += pic->linesize[2];
74 44900 a += pic->linesize[3];
75 }
76
77 200 *got_frame = 1;
78
79 200 return avpkt->size;
80 }
81
82 #if CONFIG_AYUV_DECODER
83 const AVCodec ff_ayuv_decoder = {
84 .name = "ayuv",
85 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
86 .type = AVMEDIA_TYPE_VIDEO,
87 .id = AV_CODEC_ID_AYUV,
88 .init = v408_decode_init,
89 .decode = v408_decode_frame,
90 .capabilities = AV_CODEC_CAP_DR1,
91 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
92 };
93 #endif
94 #if CONFIG_V408_DECODER
95 const AVCodec ff_v408_decoder = {
96 .name = "v408",
97 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
98 .type = AVMEDIA_TYPE_VIDEO,
99 .id = AV_CODEC_ID_V408,
100 .init = v408_decode_init,
101 .decode = v408_decode_frame,
102 .capabilities = AV_CODEC_CAP_DR1,
103 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
104 };
105 #endif
106