FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/r210dec.c
Date: 2022-07-04 00:18:54
Exec Total Coverage
Lines: 37 49 75.5%
Branches: 13 30 43.3%

Line Branch Exec Source
1 /*
2 * R210 decoder
3 *
4 * Copyright (c) 2009 Reimar Doeffinger <Reimar.Doeffinger@gmx.de>
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 "config_components.h"
26 #include "internal.h"
27 #include "libavutil/bswap.h"
28 #include "libavutil/common.h"
29
30 10 static av_cold int decode_init(AVCodecContext *avctx)
31 {
32 10 avctx->pix_fmt = AV_PIX_FMT_GBRP10;
33 10 avctx->bits_per_raw_sample = 10;
34
35 10 return 0;
36 }
37
38 203 static int decode_frame(AVCodecContext *avctx, AVFrame *pic,
39 int *got_frame, AVPacket *avpkt)
40 {
41 int h, w, ret;
42 203 const uint32_t *src = (const uint32_t *)avpkt->data;
43
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203 int aligned_width = FFALIGN(avctx->width,
44 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
45 uint8_t *g_line, *b_line, *r_line;
46 203 int r10 = (avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0);
47 406 int le = avctx->codec_tag == MKTAG('R', '1', '0', 'k') &&
48
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203 avctx->extradata_size >= 12 && !memcmp(&avctx->extradata[4], "DpxE", 4) &&
49 !avctx->extradata[11];
50
51
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203 if (avpkt->size < 4 * aligned_width * avctx->height) {
52 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
53 return AVERROR_INVALIDDATA;
54 }
55
56
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203 if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
57 return ret;
58
59 203 pic->pict_type = AV_PICTURE_TYPE_I;
60 203 pic->key_frame = 1;
61 203 g_line = pic->data[0];
62 203 b_line = pic->data[1];
63 203 r_line = pic->data[2];
64
65
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46543 for (h = 0; h < avctx->height; h++) {
66 46340 uint16_t *dstg = (uint16_t *)g_line;
67 46340 uint16_t *dstb = (uint16_t *)b_line;
68 46340 uint16_t *dstr = (uint16_t *)r_line;
69
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16232140 for (w = 0; w < avctx->width; w++) {
70 uint32_t pixel;
71 uint16_t r, g, b;
72
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16185800 if (avctx->codec_id == AV_CODEC_ID_AVRP || r10 || le) {
73 pixel = av_le2ne32(*src++);
74 } else {
75 16185800 pixel = av_be2ne32(*src++);
76 }
77
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16185800 if (avctx->codec_id == AV_CODEC_ID_R210) {
78 16185800 b = pixel & 0x3ff;
79 16185800 g = (pixel >> 10) & 0x3ff;
80 16185800 r = (pixel >> 20) & 0x3ff;
81 } else if (r10) {
82 r = pixel & 0x3ff;
83 g = (pixel >> 10) & 0x3ff;
84 b = (pixel >> 20) & 0x3ff;
85 } else {
86 b = (pixel >> 2) & 0x3ff;
87 g = (pixel >> 12) & 0x3ff;
88 r = (pixel >> 22) & 0x3ff;
89 }
90 16185800 *dstr++ = r;
91 16185800 *dstg++ = g;
92 16185800 *dstb++ = b;
93 }
94 46340 src += aligned_width - avctx->width;
95 46340 g_line += pic->linesize[0];
96 46340 b_line += pic->linesize[1];
97 46340 r_line += pic->linesize[2];
98 }
99
100 203 *got_frame = 1;
101
102 203 return avpkt->size;
103 }
104
105 #if CONFIG_R210_DECODER
106 const FFCodec ff_r210_decoder = {
107 .p.name = "r210",
108 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
109 .p.type = AVMEDIA_TYPE_VIDEO,
110 .p.id = AV_CODEC_ID_R210,
111 .init = decode_init,
112 FF_CODEC_DECODE_CB(decode_frame),
113 .p.capabilities = AV_CODEC_CAP_DR1,
114 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
115 };
116 #endif
117 #if CONFIG_R10K_DECODER
118 const FFCodec ff_r10k_decoder = {
119 .p.name = "r10k",
120 .p.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
121 .p.type = AVMEDIA_TYPE_VIDEO,
122 .p.id = AV_CODEC_ID_R10K,
123 .init = decode_init,
124 FF_CODEC_DECODE_CB(decode_frame),
125 .p.capabilities = AV_CODEC_CAP_DR1,
126 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
127 };
128 #endif
129 #if CONFIG_AVRP_DECODER
130 const FFCodec ff_avrp_decoder = {
131 .p.name = "avrp",
132 .p.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
133 .p.type = AVMEDIA_TYPE_VIDEO,
134 .p.id = AV_CODEC_ID_AVRP,
135 .init = decode_init,
136 FF_CODEC_DECODE_CB(decode_frame),
137 .p.capabilities = AV_CODEC_CAP_DR1,
138 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
139 };
140 #endif
141