aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/r210enc.c
blob: 0a7dd332ba61d8392fcc57848eb5fb9bf6c70cf7 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
/*
 * R210 encoder
 *
 * Copyright (c) 2012 Paul B Mahol
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "avcodec.h"
#include "internal.h"
#include "bytestream.h"

static av_cold int encode_init(AVCodecContext *avctx)
{
    avctx->coded_frame = avcodec_alloc_frame();

    if (!avctx->coded_frame)
        return AVERROR(ENOMEM);

    return 0;
}

static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                        const AVFrame *pic, int *got_packet)
{
    int i, j, ret;
    int aligned_width = FFALIGN(avctx->width,
                                avctx->codec_id == CODEC_ID_R10K ? 1 : 64);
    int pad = (aligned_width - avctx->width) * 4;
    uint8_t *src_line;
    uint8_t *dst;

    if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height)) < 0)
        return ret;

    avctx->coded_frame->reference = 0;
    avctx->coded_frame->key_frame = 1;
    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
    src_line = pic->data[0];
    dst = pkt->data;

    for (i = 0; i < avctx->height; i++) {
        uint16_t *src = (uint16_t *)src_line;
        for (j = 0; j < avctx->width; j++) {
            uint32_t pixel;
            uint16_t r = *src++ >> 6;
            uint16_t g = *src++ >> 6;
            uint16_t b = *src++ >> 4;
            if (avctx->codec_id == CODEC_ID_R210)
                pixel = (r << 20) | (g << 10) | b >> 2;
            else
                pixel = (r << 22) | (g << 12) | b;
            if (avctx->codec_id == CODEC_ID_AVRP)
                bytestream_put_le32(&dst, pixel);
            else
                bytestream_put_be32(&dst, pixel);
        }
        memset(dst, 0, pad);
        dst += pad;
        src_line += pic->linesize[0];
    }

    pkt->flags |= AV_PKT_FLAG_KEY;
    *got_packet = 1;
    return 0;
}

static av_cold int encode_close(AVCodecContext *avctx)
{
    av_freep(&avctx->coded_frame);

    return 0;
}

#if CONFIG_R210_ENCODER
AVCodec ff_r210_encoder = {
    .name           = "r210",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_R210,
    .init           = encode_init,
    .encode2        = encode_frame,
    .close          = encode_close,
    .pix_fmts       = (const enum PixelFormat[]) { PIX_FMT_RGB48, PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
};
#endif
#if CONFIG_R10K_ENCODER
AVCodec ff_r10k_encoder = {
    .name           = "r10k",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_R10K,
    .init           = encode_init,
    .encode2        = encode_frame,
    .close          = encode_close,
    .pix_fmts       = (const enum PixelFormat[]) { PIX_FMT_RGB48, PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
};
#endif
#if CONFIG_AVRP_ENCODER
AVCodec ff_avrp_encoder = {
    .name           = "avrp",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = CODEC_ID_AVRP,
    .init           = encode_init,
    .encode2        = encode_frame,
    .close          = encode_close,
    .pix_fmts       = (const enum PixelFormat[]) { PIX_FMT_RGB48, PIX_FMT_NONE },
    .long_name      = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
};
#endif