FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/v308dec.c
Date: 2024-12-12 01:08:13
Exec Total Coverage
Lines: 0 26 0.0%
Functions: 0 2 0.0%
Branches: 0 10 0.0%

Line Branch Exec Source
1 /*
2 * v308 decoder
3 * Copyright (c) 2011 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 "codec_internal.h"
24 #include "decode.h"
25
26 static av_cold int v308_decode_init(AVCodecContext *avctx)
27 {
28 avctx->pix_fmt = AV_PIX_FMT_YUV444P;
29
30 if (avctx->width & 1)
31 av_log(avctx, AV_LOG_WARNING, "v308 requires width to be even.\n");
32
33 av_log(avctx, AV_LOG_WARNING, "This decoder is deprecated and will be removed.\n");
34
35 return 0;
36 }
37
38 static int v308_decode_frame(AVCodecContext *avctx, AVFrame *pic,
39 int *got_frame, AVPacket *avpkt)
40 {
41 const uint8_t *src = avpkt->data;
42 uint8_t *y, *u, *v;
43 int i, j, ret;
44
45 if (avpkt->size < 3 * avctx->height * avctx->width) {
46 av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n");
47 return AVERROR(EINVAL);
48 }
49
50 if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
51 return ret;
52
53 y = pic->data[0];
54 u = pic->data[1];
55 v = pic->data[2];
56
57 for (i = 0; i < avctx->height; i++) {
58 for (j = 0; j < avctx->width; j++) {
59 v[j] = *src++;
60 y[j] = *src++;
61 u[j] = *src++;
62 }
63
64 y += pic->linesize[0];
65 u += pic->linesize[1];
66 v += pic->linesize[2];
67 }
68
69 *got_frame = 1;
70
71 return avpkt->size;
72 }
73
74 const FFCodec ff_v308_decoder = {
75 .p.name = "v308",
76 CODEC_LONG_NAME("Uncompressed packed 4:4:4"),
77 .p.type = AVMEDIA_TYPE_VIDEO,
78 .p.id = AV_CODEC_ID_V308,
79 .init = v308_decode_init,
80 FF_CODEC_DECODE_CB(v308_decode_frame),
81 .p.capabilities = AV_CODEC_CAP_DR1,
82 };
83