4 * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
5 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
7 * This file is part of FFmpeg.
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "bytestream.h"
29 #define CLIP(v) av_clip(v, 4, 1019)
30 #define CLIP8(v) av_clip(v, 1, 254)
32 #define WRITE_PIXELS(a, b, c) \
35 val |= (CLIP(*b++) << 10) | \
41 #define WRITE_PIXELS8(a, b, c) \
43 val = (CLIP8(*a++) << 2); \
44 val |= (CLIP8(*b++) << 12) | \
45 (CLIP8(*c++) << 22); \
50 static void v210_planar_pack_8_c(const uint8_t *y
, const uint8_t *u
,
51 const uint8_t *v
, uint8_t *dst
, ptrdiff_t width
)
56 /* unroll this to match the assembly */
57 for( i
= 0; i
< width
-11; i
+= 12 ){
58 WRITE_PIXELS8(u
, y
, v
);
59 WRITE_PIXELS8(y
, u
, y
);
60 WRITE_PIXELS8(v
, y
, u
);
61 WRITE_PIXELS8(y
, v
, y
);
62 WRITE_PIXELS8(u
, y
, v
);
63 WRITE_PIXELS8(y
, u
, y
);
64 WRITE_PIXELS8(v
, y
, u
);
65 WRITE_PIXELS8(y
, v
, y
);
69 static void v210_planar_pack_10_c(const uint16_t *y
, const uint16_t *u
,
70 const uint16_t *v
, uint8_t *dst
, ptrdiff_t width
)
75 for( i
= 0; i
< width
-5; i
+= 6 ){
76 WRITE_PIXELS(u
, y
, v
);
77 WRITE_PIXELS(y
, u
, y
);
78 WRITE_PIXELS(v
, y
, u
);
79 WRITE_PIXELS(y
, v
, y
);
83 static av_cold
int encode_init(AVCodecContext
*avctx
)
85 V210EncContext
*s
= avctx
->priv_data
;
87 if (avctx
->width
& 1) {
88 av_log(avctx
, AV_LOG_ERROR
, "v210 needs even width\n");
89 return AVERROR(EINVAL
);
92 avctx
->coded_frame
= av_frame_alloc();
93 if (!avctx
->coded_frame
)
94 return AVERROR(ENOMEM
);
96 avctx
->coded_frame
->pict_type
= AV_PICTURE_TYPE_I
;
98 s
->pack_line_8
= v210_planar_pack_8_c
;
99 s
->pack_line_10
= v210_planar_pack_10_c
;
102 ff_v210enc_init_x86(s
);
107 static int encode_frame(AVCodecContext
*avctx
, AVPacket
*pkt
,
108 const AVFrame
*pic
, int *got_packet
)
110 V210EncContext
*s
= avctx
->priv_data
;
112 int aligned_width
= ((avctx
->width
+ 47) / 48) * 48;
113 int stride
= aligned_width
* 8 / 3;
114 int line_padding
= stride
- ((avctx
->width
* 8 + 11) / 12) * 4;
118 if ((ret
= ff_alloc_packet(pkt
, avctx
->height
* stride
)) < 0) {
119 av_log(avctx
, AV_LOG_ERROR
, "Error getting output packet.\n");
125 if (pic
->format
== AV_PIX_FMT_YUV422P10
) {
126 const uint16_t *y
= (const uint16_t*)pic
->data
[0];
127 const uint16_t *u
= (const uint16_t*)pic
->data
[1];
128 const uint16_t *v
= (const uint16_t*)pic
->data
[2];
129 for (h
= 0; h
< avctx
->height
; h
++) {
131 w
= (avctx
->width
/ 6) * 6;
132 s
->pack_line_10(y
, u
, v
, dst
, w
);
138 if (w
< avctx
->width
- 1) {
139 WRITE_PIXELS(u
, y
, v
);
142 if (w
== avctx
->width
- 2) {
147 if (w
< avctx
->width
- 3) {
148 val
|= (CLIP(*u
++) << 10) | (CLIP(*y
++) << 20);
152 val
= CLIP(*v
++) | (CLIP(*y
++) << 10);
157 memset(dst
, 0, line_padding
);
160 y
+= pic
->linesize
[0] / 2 - avctx
->width
;
161 u
+= pic
->linesize
[1] / 2 - avctx
->width
/ 2;
162 v
+= pic
->linesize
[2] / 2 - avctx
->width
/ 2;
165 else if(pic
->format
== AV_PIX_FMT_YUV422P
) {
166 const uint8_t *y
= pic
->data
[0];
167 const uint8_t *u
= pic
->data
[1];
168 const uint8_t *v
= pic
->data
[2];
169 for (h
= 0; h
< avctx
->height
; h
++) {
171 w
= (avctx
->width
/ 12) * 12;
172 s
->pack_line_8(y
, u
, v
, dst
, w
);
177 dst
+= (w
/ 12) * 32;
179 for( ; w
< avctx
->width
-5; w
+= 6 ){
180 WRITE_PIXELS8(u
, y
, v
);
181 WRITE_PIXELS8(y
, u
, y
);
182 WRITE_PIXELS8(v
, y
, u
);
183 WRITE_PIXELS8(y
, v
, y
);
185 if (w
< avctx
->width
- 1) {
186 WRITE_PIXELS8(u
, y
, v
);
188 val
= CLIP8(*y
++) << 2;
189 if (w
== avctx
->width
- 2) {
194 if (w
< avctx
->width
- 3) {
195 val
|= (CLIP8(*u
++) << 12) | (CLIP8(*y
++) << 22);
199 val
= (CLIP8(*v
++) << 2) | (CLIP8(*y
++) << 12);
204 memset(dst
, 0, line_padding
);
207 y
+= pic
->linesize
[0] - avctx
->width
;
208 u
+= pic
->linesize
[1] - avctx
->width
/ 2;
209 v
+= pic
->linesize
[2] - avctx
->width
/ 2;
213 pkt
->flags
|= AV_PKT_FLAG_KEY
;
218 static av_cold
int encode_close(AVCodecContext
*avctx
)
220 av_freep(&avctx
->coded_frame
);
225 AVCodec ff_v210_encoder
= {
227 .long_name
= NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
228 .type
= AVMEDIA_TYPE_VIDEO
,
229 .id
= AV_CODEC_ID_V210
,
230 .priv_data_size
= sizeof(V210EncContext
),
232 .encode2
= encode_frame
,
233 .close
= encode_close
,
234 .pix_fmts
= (const enum AVPixelFormat
[]){ AV_PIX_FMT_YUV422P10
, AV_PIX_FMT_YUV422P
, AV_PIX_FMT_NONE
},