Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
4349 | Serge | 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->coded_frame = avcodec_alloc_frame(); |
||
35 | |||
36 | if (!avctx->coded_frame) { |
||
37 | av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n"); |
||
38 | return AVERROR(ENOMEM); |
||
39 | } |
||
40 | |||
41 | return 0; |
||
42 | } |
||
43 | |||
44 | static int v308_encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
||
45 | const AVFrame *pic, int *got_packet) |
||
46 | { |
||
47 | uint8_t *dst; |
||
48 | uint8_t *y, *u, *v; |
||
49 | int i, j, ret; |
||
50 | |||
51 | if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 3)) < 0) |
||
52 | return ret; |
||
53 | dst = pkt->data; |
||
54 | |||
55 | avctx->coded_frame->key_frame = 1; |
||
56 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
||
57 | |||
58 | y = pic->data[0]; |
||
59 | u = pic->data[1]; |
||
60 | v = pic->data[2]; |
||
61 | |||
62 | for (i = 0; i < avctx->height; i++) { |
||
63 | for (j = 0; j < avctx->width; j++) { |
||
64 | *dst++ = v[j]; |
||
65 | *dst++ = y[j]; |
||
66 | *dst++ = u[j]; |
||
67 | } |
||
68 | y += pic->linesize[0]; |
||
69 | u += pic->linesize[1]; |
||
70 | v += pic->linesize[2]; |
||
71 | } |
||
72 | |||
73 | pkt->flags |= AV_PKT_FLAG_KEY; |
||
74 | *got_packet = 1; |
||
75 | return 0; |
||
76 | } |
||
77 | |||
78 | static av_cold int v308_encode_close(AVCodecContext *avctx) |
||
79 | { |
||
80 | av_freep(&avctx->coded_frame); |
||
81 | |||
82 | return 0; |
||
83 | } |
||
84 | |||
85 | AVCodec ff_v308_encoder = { |
||
86 | .name = "v308", |
||
87 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"), |
||
88 | .type = AVMEDIA_TYPE_VIDEO, |
||
89 | .id = AV_CODEC_ID_V308, |
||
90 | .init = v308_encode_init, |
||
91 | .encode2 = v308_encode_frame, |
||
92 | .close = v308_encode_close, |
||
93 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P, AV_PIX_FMT_NONE }, |
||
94 | };>>> |