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 "avcodec.h"
24 #include "internal.h"
25 #include "bytestream.h"
26
encode_init(AVCodecContext * avctx)27 static av_cold int encode_init(AVCodecContext *avctx)
28 {
29 int aligned_width = FFALIGN(avctx->width,
30 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
31
32 avctx->bits_per_coded_sample = 32;
33 if (avctx->width > 0)
34 avctx->bit_rate = ff_guess_coded_bitrate(avctx) * aligned_width / avctx->width;
35
36 return 0;
37 }
38
encode_frame(AVCodecContext * avctx,AVPacket * pkt,const AVFrame * pic,int * got_packet)39 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
40 const AVFrame *pic, int *got_packet)
41 {
42 int i, j, ret;
43 int aligned_width = FFALIGN(avctx->width,
44 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
45 int pad = (aligned_width - avctx->width) * 4;
46 uint8_t *srcr_line, *srcg_line, *srcb_line;
47 uint8_t *dst;
48
49 if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height, 0)) < 0)
50 return ret;
51
52 srcg_line = pic->data[0];
53 srcb_line = pic->data[1];
54 srcr_line = pic->data[2];
55 dst = pkt->data;
56
57 for (i = 0; i < avctx->height; i++) {
58 uint16_t *srcr = (uint16_t *)srcr_line;
59 uint16_t *srcg = (uint16_t *)srcg_line;
60 uint16_t *srcb = (uint16_t *)srcb_line;
61 for (j = 0; j < avctx->width; j++) {
62 uint32_t pixel;
63 unsigned r = *srcr++;
64 unsigned g = *srcg++;
65 unsigned b = *srcb++;
66 if (avctx->codec_id == AV_CODEC_ID_R210)
67 pixel = (r << 20) | (g << 10) | b;
68 else
69 pixel = (r << 22) | (g << 12) | (b << 2);
70 if (avctx->codec_id == AV_CODEC_ID_AVRP)
71 bytestream_put_le32(&dst, pixel);
72 else
73 bytestream_put_be32(&dst, pixel);
74 }
75 memset(dst, 0, pad);
76 dst += pad;
77 srcr_line += pic->linesize[2];
78 srcg_line += pic->linesize[0];
79 srcb_line += pic->linesize[1];
80 }
81
82 pkt->flags |= AV_PKT_FLAG_KEY;
83 *got_packet = 1;
84 return 0;
85 }
86
87
88 #if CONFIG_R210_ENCODER
89 AVCodec ff_r210_encoder = {
90 .name = "r210",
91 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
92 .type = AVMEDIA_TYPE_VIDEO,
93 .id = AV_CODEC_ID_R210,
94 .init = encode_init,
95 .encode2 = encode_frame,
96 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
97 };
98 #endif
99 #if CONFIG_R10K_ENCODER
100 AVCodec ff_r10k_encoder = {
101 .name = "r10k",
102 .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
103 .type = AVMEDIA_TYPE_VIDEO,
104 .id = AV_CODEC_ID_R10K,
105 .init = encode_init,
106 .encode2 = encode_frame,
107 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
108 };
109 #endif
110 #if CONFIG_AVRP_ENCODER
111 AVCodec ff_avrp_encoder = {
112 .name = "avrp",
113 .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
114 .type = AVMEDIA_TYPE_VIDEO,
115 .id = AV_CODEC_ID_AVRP,
116 .init = encode_init,
117 .encode2 = encode_frame,
118 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_GBRP10, AV_PIX_FMT_NONE },
119 };
120 #endif
121