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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 | ||
27 | static av_cold int encode_init(AVCodecContext *avctx) | |
28 | { | |
29 | avctx->coded_frame = av_frame_alloc(); | |
30 | ||
31 | if (!avctx->coded_frame) | |
32 | return AVERROR(ENOMEM); | |
33 | ||
34 | return 0; | |
35 | } | |
36 | ||
37 | static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
38 | const AVFrame *pic, int *got_packet) | |
39 | { | |
40 | int i, j, ret; | |
41 | int aligned_width = FFALIGN(avctx->width, | |
42 | avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); | |
43 | int pad = (aligned_width - avctx->width) * 4; | |
44 | uint8_t *src_line; | |
45 | uint8_t *dst; | |
46 | ||
47 | if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height)) < 0) | |
48 | return ret; | |
49 | ||
50 | avctx->coded_frame->key_frame = 1; | |
51 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; | |
52 | src_line = pic->data[0]; | |
53 | dst = pkt->data; | |
54 | ||
55 | for (i = 0; i < avctx->height; i++) { | |
56 | uint16_t *src = (uint16_t *)src_line; | |
57 | for (j = 0; j < avctx->width; j++) { | |
58 | uint32_t pixel; | |
59 | uint16_t r = *src++ >> 6; | |
60 | uint16_t g = *src++ >> 6; | |
61 | uint16_t b = *src++ >> 4; | |
62 | if (avctx->codec_id == AV_CODEC_ID_R210) | |
63 | pixel = (r << 20) | (g << 10) | b >> 2; | |
64 | else | |
65 | pixel = (r << 22) | (g << 12) | b; | |
66 | if (avctx->codec_id == AV_CODEC_ID_AVRP) | |
67 | bytestream_put_le32(&dst, pixel); | |
68 | else | |
69 | bytestream_put_be32(&dst, pixel); | |
70 | } | |
71 | memset(dst, 0, pad); | |
72 | dst += pad; | |
73 | src_line += pic->linesize[0]; | |
74 | } | |
75 | ||
76 | pkt->flags |= AV_PKT_FLAG_KEY; | |
77 | *got_packet = 1; | |
78 | return 0; | |
79 | } | |
80 | ||
81 | static av_cold int encode_close(AVCodecContext *avctx) | |
82 | { | |
83 | av_freep(&avctx->coded_frame); | |
84 | ||
85 | return 0; | |
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 | .close = encode_close, | |
97 | .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE }, | |
98 | }; | |
99 | #endif | |
100 | #if CONFIG_R10K_ENCODER | |
101 | AVCodec ff_r10k_encoder = { | |
102 | .name = "r10k", | |
103 | .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), | |
104 | .type = AVMEDIA_TYPE_VIDEO, | |
105 | .id = AV_CODEC_ID_R10K, | |
106 | .init = encode_init, | |
107 | .encode2 = encode_frame, | |
108 | .close = encode_close, | |
109 | .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE }, | |
110 | }; | |
111 | #endif | |
112 | #if CONFIG_AVRP_ENCODER | |
113 | AVCodec ff_avrp_encoder = { | |
114 | .name = "avrp", | |
115 | .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), | |
116 | .type = AVMEDIA_TYPE_VIDEO, | |
117 | .id = AV_CODEC_ID_AVRP, | |
118 | .init = encode_init, | |
119 | .encode2 = encode_frame, | |
120 | .close = encode_close, | |
121 | .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE }, | |
122 | }; | |
123 | #endif |