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,
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 static av_cold int encode_init(AVCodecContext *avctx)
87 V210EncContext *s = avctx->priv_data;
89 if (avctx->width & 1) {
90 av_log(avctx, AV_LOG_ERROR, "v210 needs even width\n");
91 return AVERROR(EINVAL);
94 avctx->coded_frame = av_frame_alloc();
95 if (!avctx->coded_frame)
96 return AVERROR(ENOMEM);
98 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
100 s->pack_line_8 = v210_planar_pack_8_c;
101 s->pack_line_10 = v210_planar_pack_10_c;
104 ff_v210enc_init_x86(s);
109 static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
110 const AVFrame *pic, int *got_packet)
112 V210EncContext *s = avctx->priv_data;
113 int aligned_width = ((avctx->width + 47) / 48) * 48;
114 int stride = aligned_width * 8 / 3;
115 int line_padding = stride - ((avctx->width * 8 + 11) / 12) * 4;
119 ret = ff_alloc_packet(pkt, avctx->height * stride);
121 av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
126 if (pic->format == AV_PIX_FMT_YUV422P10) {
127 const uint16_t *y = (const uint16_t *)pic->data[0];
128 const uint16_t *u = (const uint16_t *)pic->data[1];
129 const uint16_t *v = (const uint16_t *)pic->data[2];
130 for (h = 0; h < avctx->height; h++) {
132 w = (avctx->width / 6) * 6;
133 s->pack_line_10(y, u, v, dst, w);
139 if (w < avctx->width - 1) {
140 WRITE_PIXELS(u, y, v);
143 if (w == avctx->width - 2) {
148 if (w < avctx->width - 3) {
149 val |= (CLIP(*u++) << 10) | (CLIP(*y++) << 20);
153 val = CLIP(*v++) | (CLIP(*y++) << 10);
158 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;
164 } else if(pic->format == AV_PIX_FMT_YUV422P) {
165 const uint8_t *y = pic->data[0];
166 const uint8_t *u = pic->data[1];
167 const uint8_t *v = pic->data[2];
168 for (h = 0; h < avctx->height; h++) {
170 w = (avctx->width / 12) * 12;
171 s->pack_line_8(y, u, v, dst, w);
176 dst += (w / 12) * 32;
178 for (; w < avctx->width - 5; w += 6) {
179 WRITE_PIXELS8(u, y, v);
180 WRITE_PIXELS8(y, u, y);
181 WRITE_PIXELS8(v, y, u);
182 WRITE_PIXELS8(y, v, y);
184 if (w < avctx->width - 1) {
185 WRITE_PIXELS8(u, y, v);
187 val = CLIP8(*y++) << 2;
188 if (w == avctx->width - 2) {
193 if (w < avctx->width - 3) {
194 val |= (CLIP8(*u++) << 12) | (CLIP8(*y++) << 22);
198 val = (CLIP8(*v++) << 2) | (CLIP8(*y++) << 12);
202 memset(dst, 0, line_padding);
205 y += pic->linesize[0] - avctx->width;
206 u += pic->linesize[1] - avctx->width / 2;
207 v += pic->linesize[2] - avctx->width / 2;
211 pkt->flags |= AV_PKT_FLAG_KEY;
216 static av_cold int encode_close(AVCodecContext *avctx)
218 av_freep(&avctx->coded_frame);
223 AVCodec ff_v210_encoder = {
225 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:2:2 10-bit"),
226 .type = AVMEDIA_TYPE_VIDEO,
227 .id = AV_CODEC_ID_V210,
228 .priv_data_size = sizeof(V210EncContext),
230 .encode2 = encode_frame,
231 .close = encode_close,
232 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV422P, AV_PIX_FMT_NONE },