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v408enc.c
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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 
28 {
30 
31  if (!avctx->coded_frame) {
32  av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
33  return AVERROR(ENOMEM);
34  }
35 
36  return 0;
37 }
38 
40  const AVFrame *pic, int *got_packet)
41 {
42  uint8_t *dst;
43  uint8_t *y, *u, *v, *a;
44  int i, j, ret;
45 
46  if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4)) < 0)
47  return ret;
48  dst = pkt->data;
49 
50  avctx->coded_frame->key_frame = 1;
52 
53  y = pic->data[0];
54  u = pic->data[1];
55  v = pic->data[2];
56  a = pic->data[3];
57 
58  for (i = 0; i < avctx->height; i++) {
59  for (j = 0; j < avctx->width; j++) {
60  if (avctx->codec_id==AV_CODEC_ID_AYUV) {
61  *dst++ = v[j];
62  *dst++ = u[j];
63  *dst++ = y[j];
64  *dst++ = a[j];
65  } else {
66  *dst++ = u[j];
67  *dst++ = y[j];
68  *dst++ = v[j];
69  *dst++ = a[j];
70  }
71  }
72  y += pic->linesize[0];
73  u += pic->linesize[1];
74  v += pic->linesize[2];
75  a += pic->linesize[3];
76  }
77 
78  pkt->flags |= AV_PKT_FLAG_KEY;
79  *got_packet = 1;
80  return 0;
81 }
82 
84 {
85  av_freep(&avctx->coded_frame);
86 
87  return 0;
88 }
89 
90 #if CONFIG_AYUV_ENCODER
91 AVCodec ff_ayuv_encoder = {
92  .name = "ayuv",
93  .type = AVMEDIA_TYPE_VIDEO,
94  .id = AV_CODEC_ID_AYUV,
95  .init = v408_encode_init,
96  .encode2 = v408_encode_frame,
97  .close = v408_encode_close,
98  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
99  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
100 };
101 #endif
102 #if CONFIG_V408_ENCODER
103 AVCodec ff_v408_encoder = {
104  .name = "v408",
105  .type = AVMEDIA_TYPE_VIDEO,
106  .id = AV_CODEC_ID_V408,
107  .init = v408_encode_init,
108  .encode2 = v408_encode_frame,
109  .close = v408_encode_close,
110  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
111  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
112 };
113 #endif