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 "codec_internal.h"
26 #include "encode.h"
27 #include "internal.h"
28
v308_encode_init(AVCodecContext * avctx)29 static av_cold int v308_encode_init(AVCodecContext *avctx)
30 {
31 if (avctx->width & 1) {
32 av_log(avctx, AV_LOG_ERROR, "v308 requires width to be even.\n");
33 return AVERROR_INVALIDDATA;
34 }
35
36 avctx->bits_per_coded_sample = 24;
37 avctx->bit_rate = ff_guess_coded_bitrate(avctx);
38
39 return 0;
40 }
41
v308_encode_frame(AVCodecContext * avctx,AVPacket * pkt,const AVFrame * pic,int * got_packet)42 static int v308_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
43 const AVFrame *pic, int *got_packet)
44 {
45 uint8_t *dst;
46 uint8_t *y, *u, *v;
47 int i, j, ret;
48
49 ret = ff_get_encode_buffer(avctx, pkt, avctx->width * avctx->height * 3, 0);
50 if (ret < 0)
51 return ret;
52 dst = pkt->data;
53
54 y = pic->data[0];
55 u = pic->data[1];
56 v = pic->data[2];
57
58 for (i = 0; i < avctx->height; i++) {
59 for (j = 0; j < avctx->width; j++) {
60 *dst++ = v[j];
61 *dst++ = y[j];
62 *dst++ = u[j];
63 }
64 y += pic->linesize[0];
65 u += pic->linesize[1];
66 v += pic->linesize[2];
67 }
68
69 *got_packet = 1;
70 return 0;
71 }
72
73 const FFCodec ff_v308_encoder = {
74 .p.name = "v308",
75 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"),
76 .p.type = AVMEDIA_TYPE_VIDEO,
77 .p.id = AV_CODEC_ID_V308,
78 .p.capabilities = AV_CODEC_CAP_DR1,
79 .init = v308_encode_init,
80 FF_CODEC_ENCODE_CB(v308_encode_frame),
81 .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P, AV_PIX_FMT_NONE },
82 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
83 };
84