FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/v408dec.c
Date: 2022-07-05 19:52:29
Exec Total Coverage
Lines: 26 33 78.8%
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 "config_components.h"
23
24 #include "avcodec.h"
25 #include "codec_internal.h"
26 #include "internal.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 8 return 0;
33 }
34
35 200 static int v408_decode_frame(AVCodecContext *avctx, AVFrame *pic,
36 int *got_frame, AVPacket *avpkt)
37 {
38 200 const uint8_t *src = avpkt->data;
39 uint8_t *y, *u, *v, *a;
40 int i, j, ret;
41
42
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200 if (avpkt->size < 4 * avctx->height * avctx->width) {
43 av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
44 return AVERROR(EINVAL);
45 }
46
47
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200 if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
48 return ret;
49
50 200 pic->key_frame = 1;
51 200 pic->pict_type = AV_PICTURE_TYPE_I;
52
53 200 y = pic->data[0];
54 200 u = pic->data[1];
55 200 v = pic->data[2];
56 200 a = pic->data[3];
57
58
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45100 for (i = 0; i < avctx->height; i++) {
59
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15309100 for (j = 0; j < avctx->width; j++) {
60
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15264200 if (avctx->codec_id==AV_CODEC_ID_AYUV) {
61 v[j] = *src++;
62 u[j] = *src++;
63 y[j] = *src++;
64 a[j] = *src++;
65 } else {
66 15264200 u[j] = *src++;
67 15264200 y[j] = *src++;
68 15264200 v[j] = *src++;
69 15264200 a[j] = *src++;
70 }
71 }
72
73 44900 y += pic->linesize[0];
74 44900 u += pic->linesize[1];
75 44900 v += pic->linesize[2];
76 44900 a += pic->linesize[3];
77 }
78
79 200 *got_frame = 1;
80
81 200 return avpkt->size;
82 }
83
84 #if CONFIG_AYUV_DECODER
85 const FFCodec ff_ayuv_decoder = {
86 .p.name = "ayuv",
87 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
88 .p.type = AVMEDIA_TYPE_VIDEO,
89 .p.id = AV_CODEC_ID_AYUV,
90 .init = v408_decode_init,
91 FF_CODEC_DECODE_CB(v408_decode_frame),
92 .p.capabilities = AV_CODEC_CAP_DR1,
93 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
94 };
95 #endif
96 #if CONFIG_V408_DECODER
97 const FFCodec ff_v408_decoder = {
98 .p.name = "v408",
99 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
100 .p.type = AVMEDIA_TYPE_VIDEO,
101 .p.id = AV_CODEC_ID_V408,
102 .init = v408_decode_init,
103 FF_CODEC_DECODE_CB(v408_decode_frame),
104 .p.capabilities = AV_CODEC_CAP_DR1,
105 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
106 };
107 #endif
108