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2ba45a60 DM |
1 | /* |
2 | * V210 encoder | |
3 | * | |
4 | * Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at> | |
5 | * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com> | |
6 | * | |
7 | * This file is part of FFmpeg. | |
8 | * | |
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. | |
13 | * | |
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. | |
18 | * | |
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 | |
22 | */ | |
23 | ||
24 | #include "avcodec.h" | |
25 | #include "bytestream.h" | |
26 | #include "internal.h" | |
f6fa7814 DM |
27 | #include "v210enc.h" |
28 | ||
29 | #define CLIP(v) av_clip(v, 4, 1019) | |
30 | #define CLIP8(v) av_clip(v, 1, 254) | |
31 | ||
32 | #define WRITE_PIXELS(a, b, c) \ | |
33 | do { \ | |
34 | val = CLIP(*a++); \ | |
35 | val |= (CLIP(*b++) << 10) | \ | |
36 | (CLIP(*c++) << 20); \ | |
37 | AV_WL32(dst, val); \ | |
38 | dst += 4; \ | |
39 | } while (0) | |
40 | ||
41 | #define WRITE_PIXELS8(a, b, c) \ | |
42 | do { \ | |
43 | val = (CLIP8(*a++) << 2); \ | |
44 | val |= (CLIP8(*b++) << 12) | \ | |
45 | (CLIP8(*c++) << 22); \ | |
46 | AV_WL32(dst, val); \ | |
47 | dst += 4; \ | |
48 | } while (0) | |
49 | ||
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) | |
52 | { | |
53 | uint32_t val; | |
54 | int i; | |
55 | ||
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); | |
66 | } | |
67 | } | |
68 | ||
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) | |
71 | { | |
72 | uint32_t val; | |
73 | int i; | |
74 | ||
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); | |
80 | } | |
81 | } | |
2ba45a60 DM |
82 | |
83 | static av_cold int encode_init(AVCodecContext *avctx) | |
84 | { | |
f6fa7814 DM |
85 | V210EncContext *s = avctx->priv_data; |
86 | ||
2ba45a60 DM |
87 | if (avctx->width & 1) { |
88 | av_log(avctx, AV_LOG_ERROR, "v210 needs even width\n"); | |
89 | return AVERROR(EINVAL); | |
90 | } | |
91 | ||
2ba45a60 DM |
92 | avctx->coded_frame = av_frame_alloc(); |
93 | if (!avctx->coded_frame) | |
94 | return AVERROR(ENOMEM); | |
95 | ||
96 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; | |
97 | ||
f6fa7814 DM |
98 | s->pack_line_8 = v210_planar_pack_8_c; |
99 | s->pack_line_10 = v210_planar_pack_10_c; | |
100 | ||
101 | if (ARCH_X86) | |
102 | ff_v210enc_init_x86(s); | |
103 | ||
2ba45a60 DM |
104 | return 0; |
105 | } | |
106 | ||
107 | static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
108 | const AVFrame *pic, int *got_packet) | |
109 | { | |
f6fa7814 DM |
110 | V210EncContext *s = avctx->priv_data; |
111 | ||
2ba45a60 DM |
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; | |
115 | int h, w, ret; | |
f6fa7814 | 116 | uint8_t *dst; |
2ba45a60 | 117 | |
f6fa7814 DM |
118 | if ((ret = ff_alloc_packet(pkt, avctx->height * stride)) < 0) { |
119 | av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n"); | |
2ba45a60 | 120 | return ret; |
f6fa7814 | 121 | } |
2ba45a60 | 122 | |
f6fa7814 DM |
123 | dst = pkt->data; |
124 | ||
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++) { | |
130 | uint32_t val; | |
131 | w = (avctx->width / 6) * 6; | |
132 | s->pack_line_10(y, u, v, dst, w); | |
133 | ||
134 | y += w; | |
135 | u += w >> 1; | |
136 | v += w >> 1; | |
137 | dst += (w / 6) * 16; | |
138 | if (w < avctx->width - 1) { | |
139 | WRITE_PIXELS(u, y, v); | |
140 | ||
141 | val = CLIP(*y++); | |
142 | if (w == avctx->width - 2) { | |
143 | AV_WL32(dst, val); | |
144 | dst += 4; | |
145 | } | |
146 | } | |
147 | if (w < avctx->width - 3) { | |
148 | val |= (CLIP(*u++) << 10) | (CLIP(*y++) << 20); | |
149 | AV_WL32(dst, val); | |
150 | dst += 4; | |
2ba45a60 | 151 | |
f6fa7814 DM |
152 | val = CLIP(*v++) | (CLIP(*y++) << 10); |
153 | AV_WL32(dst, val); | |
154 | dst += 4; | |
155 | } | |
2ba45a60 | 156 | |
f6fa7814 DM |
157 | memset(dst, 0, line_padding); |
158 | dst += line_padding; | |
2ba45a60 | 159 | |
f6fa7814 DM |
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; | |
2ba45a60 | 163 | } |
f6fa7814 DM |
164 | } |
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++) { | |
170 | uint32_t val; | |
171 | w = (avctx->width / 12) * 12; | |
172 | s->pack_line_8(y, u, v, dst, w); | |
173 | ||
174 | y += w; | |
175 | u += w >> 1; | |
176 | v += w >> 1; | |
177 | dst += (w / 12) * 32; | |
178 | ||
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); | |
184 | } | |
185 | if (w < avctx->width - 1) { | |
186 | WRITE_PIXELS8(u, y, v); | |
187 | ||
188 | val = CLIP8(*y++) << 2; | |
189 | if (w == avctx->width - 2) { | |
190 | AV_WL32(dst, val); | |
191 | dst += 4; | |
192 | } | |
193 | } | |
2ba45a60 | 194 | if (w < avctx->width - 3) { |
f6fa7814 DM |
195 | val |= (CLIP8(*u++) << 12) | (CLIP8(*y++) << 22); |
196 | AV_WL32(dst, val); | |
197 | dst += 4; | |
2ba45a60 | 198 | |
f6fa7814 DM |
199 | val = (CLIP8(*v++) << 2) | (CLIP8(*y++) << 12); |
200 | AV_WL32(dst, val); | |
201 | dst += 4; | |
2ba45a60 | 202 | } |
2ba45a60 | 203 | |
f6fa7814 DM |
204 | memset(dst, 0, line_padding); |
205 | dst += line_padding; | |
2ba45a60 | 206 | |
f6fa7814 DM |
207 | y += pic->linesize[0] - avctx->width; |
208 | u += pic->linesize[1] - avctx->width / 2; | |
209 | v += pic->linesize[2] - avctx->width / 2; | |
210 | } | |
2ba45a60 DM |
211 | } |
212 | ||
213 | pkt->flags |= AV_PKT_FLAG_KEY; | |
214 | *got_packet = 1; | |
215 | return 0; | |
216 | } | |
217 | ||
218 | static av_cold int encode_close(AVCodecContext *avctx) | |
219 | { | |
220 | av_freep(&avctx->coded_frame); | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
225 | AVCodec ff_v210_encoder = { | |
226 | .name = "v210", | |
227 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"), | |
228 | .type = AVMEDIA_TYPE_VIDEO, | |
229 | .id = AV_CODEC_ID_V210, | |
f6fa7814 | 230 | .priv_data_size = sizeof(V210EncContext), |
2ba45a60 DM |
231 | .init = encode_init, |
232 | .encode2 = encode_frame, | |
233 | .close = encode_close, | |
f6fa7814 | 234 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P, AV_PIX_FMT_NONE }, |
2ba45a60 | 235 | }; |