blob: e88f1f464814eb503c7fdcfc85c09437c8a09419
1 | /* |
2 | * v308 encoder |
3 | * |
4 | * Copyright (c) 2011 Carl Eugen Hoyos |
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 "libavutil/intreadwrite.h" |
24 | #include "avcodec.h" |
25 | #include "internal.h" |
26 | |
27 | static av_cold int v308_encode_init(AVCodecContext *avctx) |
28 | { |
29 | if (avctx->width & 1) { |
30 | av_log(avctx, AV_LOG_ERROR, "v308 requires width to be even.\n"); |
31 | return AVERROR_INVALIDDATA; |
32 | } |
33 | |
34 | avctx->bits_per_coded_sample = 24; |
35 | avctx->bit_rate = ff_guess_coded_bitrate(avctx); |
36 | |
37 | return 0; |
38 | } |
39 | |
40 | static int v308_encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
41 | const AVFrame *pic, int *got_packet) |
42 | { |
43 | uint8_t *dst; |
44 | uint8_t *y, *u, *v; |
45 | int i, j, ret; |
46 | |
47 | if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 3, 0)) < 0) |
48 | return ret; |
49 | dst = pkt->data; |
50 | |
51 | y = pic->data[0]; |
52 | u = pic->data[1]; |
53 | v = pic->data[2]; |
54 | |
55 | for (i = 0; i < avctx->height; i++) { |
56 | for (j = 0; j < avctx->width; j++) { |
57 | *dst++ = v[j]; |
58 | *dst++ = y[j]; |
59 | *dst++ = u[j]; |
60 | } |
61 | y += pic->linesize[0]; |
62 | u += pic->linesize[1]; |
63 | v += pic->linesize[2]; |
64 | } |
65 | |
66 | pkt->flags |= AV_PKT_FLAG_KEY; |
67 | *got_packet = 1; |
68 | return 0; |
69 | } |
70 | |
71 | static av_cold int v308_encode_close(AVCodecContext *avctx) |
72 | { |
73 | return 0; |
74 | } |
75 | |
76 | AVCodec ff_v308_encoder = { |
77 | .name = "v308", |
78 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"), |
79 | .type = AVMEDIA_TYPE_VIDEO, |
80 | .id = AV_CODEC_ID_V308, |
81 | .init = v308_encode_init, |
82 | .encode2 = v308_encode_frame, |
83 | .close = v308_encode_close, |
84 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P, AV_PIX_FMT_NONE }, |
85 | .capabilities = AV_CODEC_CAP_INTRA_ONLY, |
86 | }; |
87 |