1 /*
2 * v408 encoder
3 *
4 * Copyright (c) 2012 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
v408_encode_init(AVCodecContext * avctx)27 static av_cold int v408_encode_init(AVCodecContext *avctx)
28 {
29 avctx->bits_per_coded_sample = 32;
30 avctx->bit_rate = ff_guess_coded_bitrate(avctx);
31
32 return 0;
33 }
34
v408_encode_frame(AVCodecContext * avctx,AVPacket * pkt,const AVFrame * pic,int * got_packet)35 static int v408_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
36 const AVFrame *pic, int *got_packet)
37 {
38 uint8_t *dst;
39 uint8_t *y, *u, *v, *a;
40 int i, j, ret;
41
42 if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4, 0)) < 0)
43 return ret;
44 dst = pkt->data;
45
46 y = pic->data[0];
47 u = pic->data[1];
48 v = pic->data[2];
49 a = pic->data[3];
50
51 for (i = 0; i < avctx->height; i++) {
52 for (j = 0; j < avctx->width; j++) {
53 if (avctx->codec_id==AV_CODEC_ID_AYUV) {
54 *dst++ = v[j];
55 *dst++ = u[j];
56 *dst++ = y[j];
57 *dst++ = a[j];
58 } else {
59 *dst++ = u[j];
60 *dst++ = y[j];
61 *dst++ = v[j];
62 *dst++ = a[j];
63 }
64 }
65 y += pic->linesize[0];
66 u += pic->linesize[1];
67 v += pic->linesize[2];
68 a += pic->linesize[3];
69 }
70
71 pkt->flags |= AV_PKT_FLAG_KEY;
72 *got_packet = 1;
73 return 0;
74 }
75
76 #if CONFIG_AYUV_ENCODER
77 AVCodec ff_ayuv_encoder = {
78 .name = "ayuv",
79 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
80 .type = AVMEDIA_TYPE_VIDEO,
81 .id = AV_CODEC_ID_AYUV,
82 .init = v408_encode_init,
83 .encode2 = v408_encode_frame,
84 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
85 };
86 #endif
87 #if CONFIG_V408_ENCODER
88 AVCodec ff_v408_encoder = {
89 .name = "v408",
90 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
91 .type = AVMEDIA_TYPE_VIDEO,
92 .id = AV_CODEC_ID_V408,
93 .init = v408_encode_init,
94 .encode2 = v408_encode_frame,
95 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
96 };
97 #endif
98