3 * Copyright (c) 2011 Carl Eugen Hoyos
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 static av_cold
int v308_decode_init(AVCodecContext
*avctx
)
27 avctx
->pix_fmt
= AV_PIX_FMT_YUV444P
;
30 av_log(avctx
, AV_LOG_WARNING
, "v308 requires width to be even.\n");
35 static int v308_decode_frame(AVCodecContext
*avctx
, void *data
,
36 int *got_frame
, AVPacket
*avpkt
)
39 const uint8_t *src
= avpkt
->data
;
43 if (avpkt
->size
< 3 * avctx
->height
* avctx
->width
) {
44 av_log(avctx
, AV_LOG_ERROR
, "Insufficient input data.\n");
45 return AVERROR(EINVAL
);
48 if ((ret
= ff_get_buffer(avctx
, pic
, 0)) < 0)
52 pic
->pict_type
= AV_PICTURE_TYPE_I
;
58 for (i
= 0; i
< avctx
->height
; i
++) {
59 for (j
= 0; j
< avctx
->width
; j
++) {
65 y
+= pic
->linesize
[0];
66 u
+= pic
->linesize
[1];
67 v
+= pic
->linesize
[2];
75 AVCodec ff_v308_decoder
= {
77 .long_name
= NULL_IF_CONFIG_SMALL("Uncompressed packed 4:4:4"),
78 .type
= AVMEDIA_TYPE_VIDEO
,
79 .id
= AV_CODEC_ID_V308
,
80 .init
= v308_decode_init
,
81 .decode
= v308_decode_frame
,
82 .capabilities
= CODEC_CAP_DR1
,