GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/r210dec.c Lines: 38 50 76.0 %
Date: 2020-09-25 23:16:12 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 "internal.h"
25
#include "libavutil/bswap.h"
26
#include "libavutil/common.h"
27
28
10
static av_cold int decode_init(AVCodecContext *avctx)
29
{
30
10
    avctx->pix_fmt = AV_PIX_FMT_GBRP10;
31
10
    avctx->bits_per_raw_sample = 10;
32
33
10
    return 0;
34
}
35
36
203
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
37
                        AVPacket *avpkt)
38
{
39
    int h, w, ret;
40
203
    AVFrame *pic = data;
41
203
    const uint32_t *src = (const uint32_t *)avpkt->data;
42

203
    int aligned_width = FFALIGN(avctx->width,
43
                                avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
44
    uint8_t *g_line, *b_line, *r_line;
45
203
    int r10 = (avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0);
46
406
    int le = avctx->codec_tag == MKTAG('R', '1', '0', 'k') &&
47

203
             avctx->extradata_size >= 12 && !memcmp(&avctx->extradata[4], "DpxE", 4) &&
48
             !avctx->extradata[11];
49
50
203
    if (avpkt->size < 4 * aligned_width * avctx->height) {
51
        av_log(avctx, AV_LOG_ERROR, "packet too small\n");
52
        return AVERROR_INVALIDDATA;
53
    }
54
55
203
    if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
56
        return ret;
57
58
203
    pic->pict_type = AV_PICTURE_TYPE_I;
59
203
    pic->key_frame = 1;
60
203
    g_line = pic->data[0];
61
203
    b_line = pic->data[1];
62
203
    r_line = pic->data[2];
63
64
46543
    for (h = 0; h < avctx->height; h++) {
65
46340
        uint16_t *dstg = (uint16_t *)g_line;
66
46340
        uint16_t *dstb = (uint16_t *)b_line;
67
46340
        uint16_t *dstr = (uint16_t *)r_line;
68
16232140
        for (w = 0; w < avctx->width; w++) {
69
            uint32_t pixel;
70
            uint16_t r, g, b;
71

16185800
            if (avctx->codec_id == AV_CODEC_ID_AVRP || r10 || le) {
72
                pixel = av_le2ne32(*src++);
73
            } else {
74
16185800
                pixel = av_be2ne32(*src++);
75
            }
76
16185800
            if (avctx->codec_id == AV_CODEC_ID_R210) {
77
16185800
                b =  pixel & 0x3ff;
78
16185800
                g = (pixel >> 10) & 0x3ff;
79
16185800
                r = (pixel >> 20) & 0x3ff;
80
            } else if (r10) {
81
                r =  pixel & 0x3ff;
82
                g = (pixel >> 10) & 0x3ff;
83
                b = (pixel >> 20) & 0x3ff;
84
            } else {
85
                b = (pixel >>  2) & 0x3ff;
86
                g = (pixel >> 12) & 0x3ff;
87
                r = (pixel >> 22) & 0x3ff;
88
            }
89
16185800
            *dstr++ = r;
90
16185800
            *dstg++ = g;
91
16185800
            *dstb++ = b;
92
        }
93
46340
        src += aligned_width - avctx->width;
94
46340
        g_line += pic->linesize[0];
95
46340
        b_line += pic->linesize[1];
96
46340
        r_line += pic->linesize[2];
97
    }
98
99
203
    *got_frame      = 1;
100
101
203
    return avpkt->size;
102
}
103
104
#if CONFIG_R210_DECODER
105
AVCodec ff_r210_decoder = {
106
    .name           = "r210",
107
    .long_name      = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
108
    .type           = AVMEDIA_TYPE_VIDEO,
109
    .id             = AV_CODEC_ID_R210,
110
    .init           = decode_init,
111
    .decode         = decode_frame,
112
    .capabilities   = AV_CODEC_CAP_DR1,
113
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
114
};
115
#endif
116
#if CONFIG_R10K_DECODER
117
AVCodec ff_r10k_decoder = {
118
    .name           = "r10k",
119
    .long_name      = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
120
    .type           = AVMEDIA_TYPE_VIDEO,
121
    .id             = AV_CODEC_ID_R10K,
122
    .init           = decode_init,
123
    .decode         = decode_frame,
124
    .capabilities   = AV_CODEC_CAP_DR1,
125
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
126
};
127
#endif
128
#if CONFIG_AVRP_DECODER
129
AVCodec ff_avrp_decoder = {
130
    .name           = "avrp",
131
    .long_name      = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
132
    .type           = AVMEDIA_TYPE_VIDEO,
133
    .id             = AV_CODEC_ID_AVRP,
134
    .init           = decode_init,
135
    .decode         = decode_frame,
136
    .capabilities   = AV_CODEC_CAP_DR1,
137
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
138
};
139
#endif