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 Libav.
9 * Libav 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 * Libav 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 Libav; 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,
57 /* unroll this to match the assembly */
58 for (i = 0; i < width - 11; i += 12) {
59 WRITE_PIXELS8(u, y, v);
60 WRITE_PIXELS8(y, u, y);
61 WRITE_PIXELS8(v, y, u);
62 WRITE_PIXELS8(y, v, y);
63 WRITE_PIXELS8(u, y, v);
64 WRITE_PIXELS8(y, u, y);
65 WRITE_PIXELS8(v, y, u);
66 WRITE_PIXELS8(y, v, y);
70 static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u,
71 const uint16_t *v, uint8_t *dst,
77 for (i = 0; i < width - 5; i += 6) {
78 WRITE_PIXELS(u, y, v);
79 WRITE_PIXELS(y, u, y);
80 WRITE_PIXELS(v, y, u);
81 WRITE_PIXELS(y, v, y);
85 av_cold void ff_v210enc_init(V210EncContext *s)
87 s->pack_line_8 = v210_planar_pack_8_c;
88 s->pack_line_10 = v210_planar_pack_10_c;
89 s->sample_factor_8 = 1;
90 s->sample_factor_10 = 1;
93 ff_v210enc_init_x86(s);
96 static av_cold int encode_init(AVCodecContext *avctx)
98 V210EncContext *s = avctx->priv_data;
100 if (avctx->width & 1) {
101 av_log(avctx, AV_LOG_ERROR, "v210 needs even width\n");
102 return AVERROR(EINVAL);
105 #if FF_API_CODED_FRAME
106 FF_DISABLE_DEPRECATION_WARNINGS
107 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
108 FF_ENABLE_DEPRECATION_WARNINGS
116 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
117 const AVFrame *pic, int *got_packet)
119 V210EncContext *s = avctx->priv_data;
120 int aligned_width = ((avctx->width + 47) / 48) * 48;
121 int stride = aligned_width * 8 / 3;
122 int line_padding = stride - ((avctx->width * 8 + 11) / 12) * 4;
126 ret = ff_alloc_packet(pkt, avctx->height * stride);
128 av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
133 if (pic->format == AV_PIX_FMT_YUV422P10) {
134 const uint16_t *y = (const uint16_t *)pic->data[0];
135 const uint16_t *u = (const uint16_t *)pic->data[1];
136 const uint16_t *v = (const uint16_t *)pic->data[2];
138 const int sample_size = 6 * s->sample_factor_10;
139 const int sample_w = avctx->width / sample_size;
141 for (h = 0; h < avctx->height; h++) {
143 w = sample_w * sample_size;
144 s->pack_line_10(y, u, v, dst, w);
149 dst += sample_w * 16 * s->sample_factor_10;
151 for (; w < avctx->width - 5; w += 6) {
152 WRITE_PIXELS(u, y, v);
153 WRITE_PIXELS(y, u, y);
154 WRITE_PIXELS(v, y, u);
155 WRITE_PIXELS(y, v, y);
157 if (w < avctx->width - 1) {
158 WRITE_PIXELS(u, y, v);
161 if (w == avctx->width - 2) {
166 if (w < avctx->width - 3) {
167 val |= (CLIP(*u++) << 10) | (CLIP(*y++) << 20);
171 val = CLIP(*v++) | (CLIP(*y++) << 10);
176 memset(dst, 0, line_padding);
178 y += pic->linesize[0] / 2 - avctx->width;
179 u += pic->linesize[1] / 2 - avctx->width / 2;
180 v += pic->linesize[2] / 2 - avctx->width / 2;
182 } else if(pic->format == AV_PIX_FMT_YUV422P) {
183 const uint8_t *y = pic->data[0];
184 const uint8_t *u = pic->data[1];
185 const uint8_t *v = pic->data[2];
187 const int sample_size = 12 * s->sample_factor_8;
188 const int sample_w = avctx->width / sample_size;
190 for (h = 0; h < avctx->height; h++) {
192 w = sample_w * sample_size;
193 s->pack_line_8(y, u, v, dst, w);
198 dst += sample_w * 32 * s->sample_factor_8;
200 for (; w < avctx->width - 5; w += 6) {
201 WRITE_PIXELS8(u, y, v);
202 WRITE_PIXELS8(y, u, y);
203 WRITE_PIXELS8(v, y, u);
204 WRITE_PIXELS8(y, v, y);
206 if (w < avctx->width - 1) {
207 WRITE_PIXELS8(u, y, v);
209 val = CLIP8(*y++) << 2;
210 if (w == avctx->width - 2) {
215 if (w < avctx->width - 3) {
216 val |= (CLIP8(*u++) << 12) | (CLIP8(*y++) << 22);
220 val = (CLIP8(*v++) << 2) | (CLIP8(*y++) << 12);
224 memset(dst, 0, line_padding);
227 y += pic->linesize[0] - avctx->width;
228 u += pic->linesize[1] - avctx->width / 2;
229 v += pic->linesize[2] - avctx->width / 2;
233 pkt->flags |= AV_PKT_FLAG_KEY;
238 AVCodec ff_v210_encoder = {
240 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
241 .type = AVMEDIA_TYPE_VIDEO,
242 .id = AV_CODEC_ID_V210,
243 .priv_data_size = sizeof(V210EncContext),
245 .encode2 = encode_frame,
246 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P, AV_PIX_FMT_NONE },