FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/v408dec.c
Date: 2022-11-28 23:49:43
Exec Total Coverage
Lines: 27 35 77.1%
Branches: 8 12 66.7%

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 "config_components.h"
23
24 #include "avcodec.h"
25 #include "codec_internal.h"
26 #include "decode.h"
27
28 8 static av_cold int v408_decode_init(AVCodecContext *avctx)
29 {
30 8 avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
31
32 #if FF_API_AYUV_CODECID
33
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8 if (avctx->codec_id==AV_CODEC_ID_AYUV)
34 av_log(avctx, AV_LOG_WARNING, "This decoder is deprecated and will be removed.\n");
35 #endif
36 8 return 0;
37 }
38
39 200 static int v408_decode_frame(AVCodecContext *avctx, AVFrame *pic,
40 int *got_frame, AVPacket *avpkt)
41 {
42 200 const uint8_t *src = avpkt->data;
43 uint8_t *y, *u, *v, *a;
44 int i, j, ret;
45
46
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200 if (avpkt->size < 4 * avctx->height * avctx->width) {
47 av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
48 return AVERROR(EINVAL);
49 }
50
51
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200 if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
52 return ret;
53
54 200 pic->key_frame = 1;
55 200 pic->pict_type = AV_PICTURE_TYPE_I;
56
57 200 y = pic->data[0];
58 200 u = pic->data[1];
59 200 v = pic->data[2];
60 200 a = pic->data[3];
61
62
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45100 for (i = 0; i < avctx->height; i++) {
63
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15309100 for (j = 0; j < avctx->width; j++) {
64 #if FF_API_AYUV_CODECID
65
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15264200 if (avctx->codec_id==AV_CODEC_ID_AYUV) {
66 v[j] = *src++;
67 u[j] = *src++;
68 y[j] = *src++;
69 a[j] = *src++;
70 } else
71 #endif
72 {
73 15264200 u[j] = *src++;
74 15264200 y[j] = *src++;
75 15264200 v[j] = *src++;
76 15264200 a[j] = *src++;
77 }
78 }
79
80 44900 y += pic->linesize[0];
81 44900 u += pic->linesize[1];
82 44900 v += pic->linesize[2];
83 44900 a += pic->linesize[3];
84 }
85
86 200 *got_frame = 1;
87
88 200 return avpkt->size;
89 }
90
91 #if FF_API_AYUV_CODECID
92 #if CONFIG_AYUV_DECODER
93 const FFCodec ff_ayuv_decoder = {
94 .p.name = "ayuv",
95 CODEC_LONG_NAME("Uncompressed packed MS 4:4:4:4"),
96 .p.type = AVMEDIA_TYPE_VIDEO,
97 .p.id = AV_CODEC_ID_AYUV,
98 .init = v408_decode_init,
99 FF_CODEC_DECODE_CB(v408_decode_frame),
100 .p.capabilities = AV_CODEC_CAP_DR1,
101 };
102 #endif
103 #endif
104 #if CONFIG_V408_DECODER
105 const FFCodec ff_v408_decoder = {
106 .p.name = "v408",
107 CODEC_LONG_NAME("Uncompressed packed QT 4:4:4:4"),
108 .p.type = AVMEDIA_TYPE_VIDEO,
109 .p.id = AV_CODEC_ID_V408,
110 .init = v408_decode_init,
111 FF_CODEC_DECODE_CB(v408_decode_frame),
112 .p.capabilities = AV_CODEC_CAP_DR1,
113 };
114 #endif
115