4 * Copyright (c) 2011 Derek Buitenhuis
6 * This file is part of FFmpeg.
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.
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.
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
23 #include "libavutil/common.h"
24 #include "libavutil/intreadwrite.h"
28 static av_cold
int v410_decode_init(AVCodecContext
*avctx
)
30 avctx
->pix_fmt
= AV_PIX_FMT_YUV444P10
;
31 avctx
->bits_per_raw_sample
= 10;
33 if (avctx
->width
& 1) {
34 if (avctx
->err_recognition
& AV_EF_EXPLODE
) {
35 av_log(avctx
, AV_LOG_ERROR
, "v410 requires width to be even.\n");
36 return AVERROR_INVALIDDATA
;
38 av_log(avctx
, AV_LOG_WARNING
, "v410 requires width to be even, continuing anyway.\n");
45 static int v410_decode_frame(AVCodecContext
*avctx
, void *data
,
46 int *got_frame
, AVPacket
*avpkt
)
49 uint8_t *src
= avpkt
->data
;
54 if (avpkt
->size
< 4 * avctx
->height
* avctx
->width
) {
55 av_log(avctx
, AV_LOG_ERROR
, "Insufficient input data.\n");
56 return AVERROR(EINVAL
);
59 if ((ret
= ff_get_buffer(avctx
, pic
, 0)) < 0)
63 pic
->pict_type
= AV_PICTURE_TYPE_I
;
65 y
= (uint16_t *)pic
->data
[0];
66 u
= (uint16_t *)pic
->data
[1];
67 v
= (uint16_t *)pic
->data
[2];
69 for (i
= 0; i
< avctx
->height
; i
++) {
70 for (j
= 0; j
< avctx
->width
; j
++) {
73 u
[j
] = (val
>> 2) & 0x3FF;
74 y
[j
] = (val
>> 12) & 0x3FF;
80 y
+= pic
->linesize
[0] >> 1;
81 u
+= pic
->linesize
[1] >> 1;
82 v
+= pic
->linesize
[2] >> 1;
90 AVCodec ff_v410_decoder
= {
92 .long_name
= NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"),
93 .type
= AVMEDIA_TYPE_VIDEO
,
94 .id
= AV_CODEC_ID_V410
,
95 .init
= v410_decode_init
,
96 .decode
= v410_decode_frame
,
97 .capabilities
= CODEC_CAP_DR1
,