1 /*
2 * R210 encoder
3 *
4 * Copyright (c) 2012 Paul B Mahol
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 "config_components.h"
24
25 #include "avcodec.h"
26 #include "codec_internal.h"
27 #include "encode.h"
28 #include "internal.h"
29 #include "bytestream.h"
30
encode_init(AVCodecContext *avctx)31 static av_cold int encode_init(AVCodecContext *avctx)
32 {
33 int aligned_width = FFALIGN(avctx->width,
34 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
35
36 avctx->bits_per_coded_sample = 32;
37 if (avctx->width > 0)
38 avctx->bit_rate = ff_guess_coded_bitrate(avctx) * aligned_width / avctx->width;
39
40 return 0;
41 }
42
encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)43 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
44 const AVFrame *pic, int *got_packet)
45 {
46 int i, j, ret;
47 int aligned_width = FFALIGN(avctx->width,
48 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
49 int pad = (aligned_width - avctx->width) * 4;
50 uint8_t *srcr_line, *srcg_line, *srcb_line;
51 uint8_t *dst;
52
53 ret = ff_get_encode_buffer(avctx, pkt, 4 * aligned_width * avctx->height, 0);
54 if (ret < 0)
55 return ret;
56
57 srcg_line = pic->data[0];
58 srcb_line = pic->data[1];
59 srcr_line = pic->data[2];
60 dst = pkt->data;
61
62 for (i = 0; i < avctx->height; i++) {
63 uint16_t *srcr = (uint16_t *)srcr_line;
64 uint16_t *srcg = (uint16_t *)srcg_line;
65 uint16_t *srcb = (uint16_t *)srcb_line;
66 for (j = 0; j < avctx->width; j++) {
67 uint32_t pixel;
68 unsigned r = *srcr++;
69 unsigned g = *srcg++;
70 unsigned b = *srcb++;
71 if (avctx->codec_id == AV_CODEC_ID_R210)
72 pixel = (r << 20) | (g << 10) | b;
73 else
74 pixel = (r << 22) | (g << 12) | (b << 2);
75 if (avctx->codec_id == AV_CODEC_ID_AVRP)
76 bytestream_put_le32(&dst, pixel);
77 else
78 bytestream_put_be32(&dst, pixel);
79 }
80 memset(dst, 0, pad);
81 dst += pad;
82 srcr_line += pic->linesize[2];
83 srcg_line += pic->linesize[0];
84 srcb_line += pic->linesize[1];
85 }
86
87 *got_packet = 1;
88 return 0;
89 }
90
91 static const enum AVPixelFormat pix_fmt[] = { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE };
92
93 #if CONFIG_R210_ENCODER
94 const FFCodec ff_r210_encoder = {
95 .p.name = "r210",
96 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
97 .p.type = AVMEDIA_TYPE_VIDEO,
98 .p.id = AV_CODEC_ID_R210,
99 .p.capabilities = AV_CODEC_CAP_DR1,
100 .init = encode_init,
101 FF_CODEC_ENCODE_CB(encode_frame),
102 .p.pix_fmts = pix_fmt,
103 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
104 };
105 #endif
106 #if CONFIG_R10K_ENCODER
107 const FFCodec ff_r10k_encoder = {
108 .p.name = "r10k",
109 .p.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
110 .p.type = AVMEDIA_TYPE_VIDEO,
111 .p.id = AV_CODEC_ID_R10K,
112 .p.capabilities = AV_CODEC_CAP_DR1,
113 .init = encode_init,
114 FF_CODEC_ENCODE_CB(encode_frame),
115 .p.pix_fmts = pix_fmt,
116 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
117 };
118 #endif
119 #if CONFIG_AVRP_ENCODER
120 const FFCodec ff_avrp_encoder = {
121 .p.name = "avrp",
122 .p.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
123 .p.type = AVMEDIA_TYPE_VIDEO,
124 .p.id = AV_CODEC_ID_AVRP,
125 .p.capabilities = AV_CODEC_CAP_DR1,
126 .init = encode_init,
127 FF_CODEC_ENCODE_CB(encode_frame),
128 .p.pix_fmts = pix_fmt,
129 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
130 };
131 #endif
132