dv patch by Max Krasnyansky (maxk at qualcomm dot com)
[libav.git] / libavformat / grab.c
CommitLineData
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1/*
2 * Linux video grab interface
19720f15 3 * Copyright (c) 2000,2001 Fabrice Bellard.
de6d9b64 4 *
19720f15
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5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
de6d9b64 9 *
19720f15 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19720f15
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
19720f15
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15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
de6d9b64 18 */
8be1c656 19#include "avformat.h"
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20#include <linux/videodev.h>
21#include <unistd.h>
22#include <fcntl.h>
23#include <sys/ioctl.h>
24#include <sys/mman.h>
de6d9b64 25#include <sys/time.h>
608d0dee 26#include <time.h>
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27
28typedef struct {
29 int fd;
30 int frame_format; /* see VIDEO_PALETTE_xxx */
31 int use_mmap;
32 int width, height;
4972b26f 33 int frame_rate;
de6d9b64 34 INT64 time_frame;
4972b26f 35 int frame_size;
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36 struct video_capability video_cap;
37 struct video_audio audio_saved;
38 UINT8 *video_buf;
39 struct video_mbuf gb_buffers;
40 struct video_mmap gb_buf;
41 int gb_frame;
42
43 /* ATI All In Wonder specific stuff */
44 /* XXX: remove and merge in libavcodec/imgconvert.c */
45 int aiw_enabled;
46 int deint;
47 int halfw;
48 UINT8 *src_mem;
49 UINT8 *lum_m4_mem;
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50} VideoData;
51
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52static int aiw_init(VideoData *s);
53static int aiw_read_picture(VideoData *s, uint8_t *data);
54static int aiw_close(VideoData *s);
de6d9b64 55
4972b26f 56static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
de6d9b64 57{
c9a65ca8 58 VideoData *s = s1->priv_data;
4972b26f 59 AVStream *st;
de6d9b64 60 int width, height;
de6d9b64 61 int video_fd, frame_size;
4972b26f 62 int ret, frame_rate;
4606ac8d 63 int desired_palette;
8949367e 64 struct video_audio audio;
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65
66 if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
67 return -1;
de6d9b64 68
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69 width = ap->width;
70 height = ap->height;
71 frame_rate = ap->frame_rate;
72
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73 st = av_new_stream(s1, 0);
74 if (!st)
4972b26f 75 return -ENOMEM;
4972b26f
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76
77 s->width = width;
78 s->height = height;
79 s->frame_rate = frame_rate;
de6d9b64 80
8aa3ee32 81 video_fd = open(video_device, O_RDWR);
de6d9b64 82 if (video_fd < 0) {
8aa3ee32 83 perror(video_device);
4972b26f 84 goto fail;
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85 }
86
8949367e 87 if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
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88 perror("VIDIOCGCAP");
89 goto fail;
90 }
91
8949367e 92 if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
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93 fprintf(stderr, "Fatal: grab device does not handle capture\n");
94 goto fail;
95 }
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96
97 desired_palette = -1;
98 if (st->codec.pix_fmt == PIX_FMT_YUV420P) {
99 desired_palette = VIDEO_PALETTE_YUV420P;
100 } else if (st->codec.pix_fmt == PIX_FMT_YUV422) {
101 desired_palette = VIDEO_PALETTE_YUV422;
102 } else if (st->codec.pix_fmt == PIX_FMT_BGR24) {
103 desired_palette = VIDEO_PALETTE_RGB24;
104 }
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105
106 /* unmute audio */
8949367e 107 audio.audio = 0;
de6d9b64 108 ioctl(video_fd, VIDIOCGAUDIO, &audio);
8949367e 109 memcpy(&s->audio_saved, &audio, sizeof(audio));
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110 audio.flags &= ~VIDEO_AUDIO_MUTE;
111 ioctl(video_fd, VIDIOCSAUDIO, &audio);
112
8949367e 113 ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
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114 if (ret < 0) {
115 /* try to use read based access */
116 struct video_window win;
117 struct video_picture pict;
118 int val;
119
120 win.x = 0;
121 win.y = 0;
122 win.width = width;
123 win.height = height;
124 win.chromakey = -1;
125 win.flags = 0;
126
127 ioctl(video_fd, VIDIOCSWIN, &win);
128
129 ioctl(video_fd, VIDIOCGPICT, &pict);
130#if 0
131 printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
132 pict.colour,
133 pict.hue,
134 pict.brightness,
135 pict.contrast,
136 pict.whiteness);
137#endif
138 /* try to choose a suitable video format */
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139 pict.palette = desired_palette;
140 if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
141 pict.palette=VIDEO_PALETTE_YUV420P;
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142 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
143 if (ret < 0) {
4606ac8d 144 pict.palette=VIDEO_PALETTE_YUV422;
de6d9b64 145 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
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146 if (ret < 0) {
147 pict.palette=VIDEO_PALETTE_RGB24;
148 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
149 if (ret < 0)
150 goto fail1;
151 }
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152 }
153 }
154
155 s->frame_format = pict.palette;
156
157 val = 1;
158 ioctl(video_fd, VIDIOCCAPTURE, &val);
159
a11bf0bd 160 s->time_frame = av_gettime();
de6d9b64 161 s->use_mmap = 0;
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162
163 /* ATI All In Wonder automatic activation */
164 if (!strcmp(s->video_cap.name, "Km")) {
165 if (aiw_init(s) < 0)
166 goto fail;
167 s->aiw_enabled = 1;
168 /* force 420P format because convertion from YUV422 to YUV420P
169 is done in this driver (ugly) */
170 s->frame_format = VIDEO_PALETTE_YUV420P;
171 }
de6d9b64 172 } else {
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173 s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
174 if ((unsigned char*)-1 == s->video_buf) {
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175 perror("mmap");
176 goto fail;
177 }
8949367e 178 s->gb_frame = 0;
a11bf0bd 179 s->time_frame = av_gettime();
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180
181 /* start to grab the first frame */
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182 s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
183 s->gb_buf.height = height;
184 s->gb_buf.width = width;
185 s->gb_buf.format = desired_palette;
4606ac8d 186
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187 if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf)) < 0) {
188 s->gb_buf.format = VIDEO_PALETTE_YUV420P;
de6d9b64 189
8949367e 190 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
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191 if (ret < 0 && errno != EAGAIN) {
192 /* try YUV422 */
8949367e 193 s->gb_buf.format = VIDEO_PALETTE_YUV422;
4606ac8d 194
8949367e 195 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
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196 if (ret < 0 && errno != EAGAIN) {
197 /* try RGB24 */
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198 s->gb_buf.format = VIDEO_PALETTE_RGB24;
199 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
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200 }
201 }
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202 }
203 if (ret < 0) {
204 if (errno != EAGAIN) {
205 fail1:
206 fprintf(stderr, "Fatal: grab device does not support suitable format\n");
207 } else {
208 fprintf(stderr,"Fatal: grab device does not receive any video signal\n");
209 }
210 goto fail;
211 }
8949367e 212 s->frame_format = s->gb_buf.format;
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213 s->use_mmap = 1;
214 }
215
216 switch(s->frame_format) {
217 case VIDEO_PALETTE_YUV420P:
218 frame_size = (width * height * 3) / 2;
4972b26f 219 st->codec.pix_fmt = PIX_FMT_YUV420P;
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220 break;
221 case VIDEO_PALETTE_YUV422:
222 frame_size = width * height * 2;
4972b26f 223 st->codec.pix_fmt = PIX_FMT_YUV422;
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224 break;
225 case VIDEO_PALETTE_RGB24:
226 frame_size = width * height * 3;
4972b26f 227 st->codec.pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
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228 break;
229 default:
230 goto fail;
231 }
232 s->fd = video_fd;
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233 s->frame_size = frame_size;
234
28c66901 235 st->codec.codec_type = CODEC_TYPE_VIDEO;
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236 st->codec.codec_id = CODEC_ID_RAWVIDEO;
237 st->codec.width = width;
238 st->codec.height = height;
239 st->codec.frame_rate = frame_rate;
86f2b9d0 240
45dd5c69
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241 av_set_pts_info(s1, 48, 1, 1000000); /* 48 bits pts in us */
242
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243 return 0;
244 fail:
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245 if (video_fd >= 0)
246 close(video_fd);
1ea4f593 247 av_free(st);
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248 return -EIO;
249}
250
4972b26f 251static int v4l_mm_read_picture(VideoData *s, UINT8 *buf)
de6d9b64 252{
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253 UINT8 *ptr;
254
4606ac8d 255 /* Setup to capture the next frame */
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256 s->gb_buf.frame = (s->gb_frame + 1) % s->gb_buffers.frames;
257 if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
28c66901
PG
258 if (errno == EAGAIN)
259 fprintf(stderr,"Cannot Sync\n");
260 else
de6d9b64 261 perror("VIDIOCMCAPTURE");
28c66901 262 return -EIO;
de6d9b64 263 }
4606ac8d 264
8949367e 265 while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
de6d9b64
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266 (errno == EAGAIN || errno == EINTR));
267
8949367e 268 ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
4972b26f 269 memcpy(buf, ptr, s->frame_size);
4606ac8d
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270
271 /* This is now the grabbing frame */
8949367e 272 s->gb_frame = s->gb_buf.frame;
4606ac8d 273
4972b26f 274 return s->frame_size;
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275}
276
4972b26f 277static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
de6d9b64 278{
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279 VideoData *s = s1->priv_data;
280 INT64 curtime, delay;
281 struct timespec ts;
4606ac8d 282 INT64 per_frame = (INT64_C(1000000) * FRAME_RATE_BASE) / s->frame_rate;
4606ac8d
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283
284 /* Calculate the time of the next frame */
285 s->time_frame += per_frame;
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286
287 /* wait based on the frame rate */
45dd5c69 288 for(;;) {
a11bf0bd 289 curtime = av_gettime();
4972b26f 290 delay = s->time_frame - curtime;
4606ac8d
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291 if (delay <= 0) {
292 if (delay < -per_frame) {
293 /* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
4606ac8d
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294 s->time_frame += per_frame;
295 }
4972b26f 296 break;
4606ac8d 297 }
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298 ts.tv_sec = delay / 1000000;
299 ts.tv_nsec = (delay % 1000000) * 1000;
300 nanosleep(&ts, NULL);
301 }
302
303 if (av_new_packet(pkt, s->frame_size) < 0)
304 return -EIO;
de6d9b64 305
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306 pkt->pts = curtime & ((1LL << 48) - 1);
307
de6d9b64 308 /* read one frame */
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309 if (s->aiw_enabled) {
310 return aiw_read_picture(s, pkt->data);
311 } else if (s->use_mmap) {
4972b26f 312 return v4l_mm_read_picture(s, pkt->data);
de6d9b64 313 } else {
4972b26f 314 if (read(s->fd, pkt->data, pkt->size) != pkt->size)
de6d9b64 315 return -EIO;
4972b26f 316 return s->frame_size;
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317 }
318}
319
4972b26f 320static int grab_read_close(AVFormatContext *s1)
de6d9b64 321{
4972b26f 322 VideoData *s = s1->priv_data;
e61efa24 323
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324 if (s->aiw_enabled)
325 aiw_close(s);
326
e61efa24 327 if (s->use_mmap)
8949367e 328 munmap(s->video_buf, s->gb_buffers.size);
e61efa24 329
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330 /* mute audio. we must force it because the BTTV driver does not
331 return its state correctly */
332 s->audio_saved.flags |= VIDEO_AUDIO_MUTE;
333 ioctl(s->fd, VIDIOCSAUDIO, &s->audio_saved);
5a56c87c 334
de6d9b64 335 close(s->fd);
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336 return 0;
337}
338
c18a2692 339static AVInputFormat video_grab_device_format = {
8aa3ee32 340 "video4linux",
4972b26f 341 "video grab",
c9a65ca8 342 sizeof(VideoData),
4972b26f 343 NULL,
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344 grab_read_header,
345 grab_read_packet,
346 grab_read_close,
bb76a117 347 .flags = AVFMT_NOFILE,
de6d9b64 348};
c9a65ca8 349
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350/* All in Wonder specific stuff */
351/* XXX: remove and merge in libavcodec/imgconvert.c */
3f9bff71 352
8949367e 353static int aiw_init(VideoData *s)
3f9bff71 354{
3f9bff71 355 int width, height;
3f9bff71 356
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357 width = s->width;
358 height = s->height;
3f9bff71 359
8949367e
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360 if ((width == s->video_cap.maxwidth && height == s->video_cap.maxheight) ||
361 (width == s->video_cap.maxwidth && height == s->video_cap.maxheight*2) ||
362 (width == s->video_cap.maxwidth/2 && height == s->video_cap.maxheight)) {
363
364 s->deint=0;
365 s->halfw=0;
366 if (height == s->video_cap.maxheight*2) s->deint=1;
367 if (width == s->video_cap.maxwidth/2) s->halfw=1;
3f9bff71 368 } else {
8949367e
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369 fprintf(stderr,"\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
370 fprintf(stderr," %dx%d %dx%d %dx%d\n\n",
371 s->video_cap.maxwidth,s->video_cap.maxheight,
372 s->video_cap.maxwidth,s->video_cap.maxheight*2,
373 s->video_cap.maxwidth/2,s->video_cap.maxheight);
3f9bff71
MN
374 goto fail;
375 }
376
3f9bff71
MN
377 if (s->halfw == 0) {
378 s->src_mem = av_malloc(s->width*2);
379 } else {
380 s->src_mem = av_malloc(s->width*4);
381 }
382 if (!s->src_mem) goto fail;
383
384 s->lum_m4_mem = av_malloc(s->width);
8949367e 385 if (!s->lum_m4_mem)
3f9bff71 386 goto fail;
3f9bff71
MN
387 return 0;
388 fail:
8949367e
FB
389 av_freep(&s->src_mem);
390 av_freep(&s->lum_m4_mem);
391 return -1;
3f9bff71
MN
392}
393
3f9bff71
MN
394#ifdef HAVE_MMX
395#include "../libavcodec/i386/mmx.h"
396
397#define LINE_WITH_UV \
398 movq_m2r(ptr[0],mm0); \
399 movq_m2r(ptr[8],mm1); \
400 movq_r2r(mm0, mm4); \
401 punpcklbw_r2r(mm1,mm0); \
402 punpckhbw_r2r(mm1,mm4); \
403 movq_r2r(mm0,mm5); \
404 punpcklbw_r2r(mm4,mm0); \
405 punpckhbw_r2r(mm4,mm5); \
406 movq_r2r(mm0,mm1); \
407 punpcklbw_r2r(mm5,mm1); \
408 movq_r2m(mm1,lum[0]); \
409 movq_m2r(ptr[16],mm2); \
410 movq_m2r(ptr[24],mm1); \
411 movq_r2r(mm2,mm4); \
412 punpcklbw_r2r(mm1,mm2); \
413 punpckhbw_r2r(mm1,mm4); \
414 movq_r2r(mm2,mm3); \
415 punpcklbw_r2r(mm4,mm2); \
416 punpckhbw_r2r(mm4,mm3); \
417 movq_r2r(mm2,mm1); \
418 punpcklbw_r2r(mm3,mm1); \
419 movq_r2m(mm1,lum[8]); \
420 punpckhdq_r2r(mm2,mm0); \
421 punpckhdq_r2r(mm3,mm5); \
422 movq_r2m(mm0,cb[0]); \
423 movq_r2m(mm5,cr[0]);
424
425#define LINE_NO_UV \
426 movq_m2r(ptr[0],mm0);\
427 movq_m2r(ptr[8],mm1);\
428 movq_r2r(mm0, mm4);\
429 punpcklbw_r2r(mm1,mm0); \
430 punpckhbw_r2r(mm1,mm4);\
431 movq_r2r(mm0,mm5);\
432 punpcklbw_r2r(mm4,mm0);\
433 punpckhbw_r2r(mm4,mm5);\
434 movq_r2r(mm0,mm1);\
435 punpcklbw_r2r(mm5,mm1);\
436 movq_r2m(mm1,lum[0]);\
437 movq_m2r(ptr[16],mm2);\
438 movq_m2r(ptr[24],mm1);\
439 movq_r2r(mm2,mm4);\
440 punpcklbw_r2r(mm1,mm2);\
441 punpckhbw_r2r(mm1,mm4);\
442 movq_r2r(mm2,mm3);\
443 punpcklbw_r2r(mm4,mm2);\
444 punpckhbw_r2r(mm4,mm3);\
445 movq_r2r(mm2,mm1);\
446 punpcklbw_r2r(mm3,mm1);\
447 movq_r2m(mm1,lum[8]);
448
449#define LINE_WITHUV_AVG \
450 movq_m2r(ptr[0], mm0);\
451 movq_m2r(ptr[8], mm1);\
452 movq_r2r(mm0, mm4);\
453 punpcklbw_r2r(mm1,mm0);\
454 punpckhbw_r2r(mm1,mm4);\
455 movq_r2r(mm0,mm5);\
456 punpcklbw_r2r(mm4,mm0);\
457 punpckhbw_r2r(mm4,mm5);\
458 movq_r2r(mm0,mm1);\
459 movq_r2r(mm5,mm2);\
460 punpcklbw_r2r(mm7,mm1);\
461 punpcklbw_r2r(mm7,mm2);\
462 paddw_r2r(mm6,mm1);\
463 paddw_r2r(mm2,mm1);\
464 psraw_i2r(1,mm1);\
465 packuswb_r2r(mm7,mm1);\
466 movd_r2m(mm1,lum[0]);\
467 movq_m2r(ptr[16],mm2);\
468 movq_m2r(ptr[24],mm1);\
469 movq_r2r(mm2,mm4);\
470 punpcklbw_r2r(mm1,mm2);\
471 punpckhbw_r2r(mm1,mm4);\
472 movq_r2r(mm2,mm3);\
473 punpcklbw_r2r(mm4,mm2);\
474 punpckhbw_r2r(mm4,mm3);\
475 movq_r2r(mm2,mm1);\
476 movq_r2r(mm3,mm4);\
477 punpcklbw_r2r(mm7,mm1);\
478 punpcklbw_r2r(mm7,mm4);\
479 paddw_r2r(mm6,mm1);\
480 paddw_r2r(mm4,mm1);\
481 psraw_i2r(1,mm1);\
482 packuswb_r2r(mm7,mm1);\
483 movd_r2m(mm1,lum[4]);\
484 punpckhbw_r2r(mm7,mm0);\
485 punpckhbw_r2r(mm7,mm2);\
486 paddw_r2r(mm6,mm0);\
487 paddw_r2r(mm2,mm0);\
488 psraw_i2r(1,mm0);\
489 packuswb_r2r(mm7,mm0);\
490 punpckhbw_r2r(mm7,mm5);\
491 punpckhbw_r2r(mm7,mm3);\
492 paddw_r2r(mm6,mm5);\
493 paddw_r2r(mm3,mm5);\
494 psraw_i2r(1,mm5);\
495 packuswb_r2r(mm7,mm5);\
496 movd_r2m(mm0,cb[0]);\
497 movd_r2m(mm5,cr[0]);
498
499#define LINE_NOUV_AVG \
500 movq_m2r(ptr[0],mm0);\
501 movq_m2r(ptr[8],mm1);\
502 pand_r2r(mm5,mm0);\
503 pand_r2r(mm5,mm1);\
504 pmaddwd_r2r(mm6,mm0);\
505 pmaddwd_r2r(mm6,mm1);\
506 packssdw_r2r(mm1,mm0);\
507 paddw_r2r(mm6,mm0);\
508 psraw_i2r(1,mm0);\
509 movq_m2r(ptr[16],mm2);\
510 movq_m2r(ptr[24],mm3);\
511 pand_r2r(mm5,mm2);\
512 pand_r2r(mm5,mm3);\
513 pmaddwd_r2r(mm6,mm2);\
514 pmaddwd_r2r(mm6,mm3);\
515 packssdw_r2r(mm3,mm2);\
516 paddw_r2r(mm6,mm2);\
517 psraw_i2r(1,mm2);\
518 packuswb_r2r(mm2,mm0);\
519 movq_r2m(mm0,lum[0]);
520
521#define DEINT_LINE_LUM(ptroff) \
522 movd_m2r(lum_m4[(ptroff)],mm0);\
523 movd_m2r(lum_m3[(ptroff)],mm1);\
524 movd_m2r(lum_m2[(ptroff)],mm2);\
525 movd_m2r(lum_m1[(ptroff)],mm3);\
526 movd_m2r(lum[(ptroff)],mm4);\
527 punpcklbw_r2r(mm7,mm0);\
528 movd_r2m(mm2,lum_m4[(ptroff)]);\
529 punpcklbw_r2r(mm7,mm1);\
530 punpcklbw_r2r(mm7,mm2);\
531 punpcklbw_r2r(mm7,mm3);\
532 punpcklbw_r2r(mm7,mm4);\
533 psllw_i2r(2,mm1);\
534 psllw_i2r(1,mm2);\
535 paddw_r2r(mm6,mm1);\
536 psllw_i2r(2,mm3);\
537 paddw_r2r(mm2,mm1);\
538 paddw_r2r(mm4,mm0);\
539 paddw_r2r(mm3,mm1);\
540 psubusw_r2r(mm0,mm1);\
541 psrlw_i2r(3,mm1);\
542 packuswb_r2r(mm7,mm1);\
543 movd_r2m(mm1,lum_m2[(ptroff)]);
544
545#else
546#include "../libavcodec/dsputil.h"
547
548#define LINE_WITH_UV \
549 lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
550 cb[0]=ptr[1];cb[1]=ptr[5];\
551 cr[0]=ptr[3];cr[1]=ptr[7];\
552 lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
553 cb[2]=ptr[9];cb[3]=ptr[13];\
554 cr[2]=ptr[11];cr[3]=ptr[15];\
555 lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
556 cb[4]=ptr[17];cb[5]=ptr[21];\
557 cr[4]=ptr[19];cr[5]=ptr[23];\
558 lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];\
559 cb[6]=ptr[25];cb[7]=ptr[29];\
560 cr[6]=ptr[27];cr[7]=ptr[31];
561
562#define LINE_NO_UV \
563 lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
564 lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
565 lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
566 lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];
567
568#define LINE_WITHUV_AVG \
569 sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
570 sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
571 sum=(ptr[1]+ptr[5]+1) >> 1;cb[0]=sum; \
572 sum=(ptr[3]+ptr[7]+1) >> 1;cr[0]=sum; \
573 sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
574 sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
575 sum=(ptr[9]+ptr[13]+1) >> 1;cb[1]=sum; \
576 sum=(ptr[11]+ptr[15]+1) >> 1;cr[1]=sum; \
577 sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
578 sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
579 sum=(ptr[17]+ptr[21]+1) >> 1;cb[2]=sum; \
580 sum=(ptr[19]+ptr[23]+1) >> 1;cr[2]=sum; \
581 sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
582 sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum; \
583 sum=(ptr[25]+ptr[29]+1) >> 1;cb[3]=sum; \
584 sum=(ptr[27]+ptr[31]+1) >> 1;cr[3]=sum;
585
586#define LINE_NOUV_AVG \
587 sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
588 sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
589 sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
590 sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
591 sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
592 sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
593 sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
594 sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum;
595
596#define DEINT_LINE_LUM(ptroff) \
597 sum=(-lum_m4[(ptroff)]+(lum_m3[(ptroff)]<<2)+(lum_m2[(ptroff)]<<1)+(lum_m1[(ptroff)]<<2)-lum[(ptroff)]); \
598 lum_m4[(ptroff)]=lum_m2[(ptroff)];\
599 lum_m2[(ptroff)]=cm[(sum+4)>>3];\
600 sum=(-lum_m4[(ptroff)+1]+(lum_m3[(ptroff)+1]<<2)+(lum_m2[(ptroff)+1]<<1)+(lum_m1[(ptroff)+1]<<2)-lum[(ptroff)+1]); \
601 lum_m4[(ptroff)+1]=lum_m2[(ptroff)+1];\
602 lum_m2[(ptroff)+1]=cm[(sum+4)>>3];\
603 sum=(-lum_m4[(ptroff)+2]+(lum_m3[(ptroff)+2]<<2)+(lum_m2[(ptroff)+2]<<1)+(lum_m1[(ptroff)+2]<<2)-lum[(ptroff)+2]); \
604 lum_m4[(ptroff)+2]=lum_m2[(ptroff)+2];\
605 lum_m2[(ptroff)+2]=cm[(sum+4)>>3];\
606 sum=(-lum_m4[(ptroff)+3]+(lum_m3[(ptroff)+3]<<2)+(lum_m2[(ptroff)+3]<<1)+(lum_m1[(ptroff)+3]<<2)-lum[(ptroff)+3]); \
607 lum_m4[(ptroff)+3]=lum_m2[(ptroff)+3];\
608 lum_m2[(ptroff)+3]=cm[(sum+4)>>3];
609
610#endif
611
612
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613/* Read two fields separately. */
614static int aiw_read_picture(VideoData *s, uint8_t *data)
3f9bff71 615{
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616 UINT8 *ptr, *lum, *cb, *cr;
617 int h;
3f9bff71 618#ifndef HAVE_MMX
8949367e 619 int sum;
3f9bff71 620#endif
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621 UINT8* src = s->src_mem;
622 UINT8 *ptrend = &src[s->width*2];
623 lum=data;
624 cb=&lum[s->width*s->height];
625 cr=&cb[(s->width*s->height)/4];
626 if (s->deint == 0 && s->halfw == 0) {
627 while (read(s->fd,src,s->width*2) < 0) {
628 usleep(100);
629 }
630 for (h = 0; h < s->height-2; h+=2) {
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631 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
632 LINE_WITH_UV
8949367e 633 }
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634 read(s->fd,src,s->width*2);
635 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
636 LINE_NO_UV
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637 }
638 read(s->fd,src,s->width*2);
639 }
640 /*
641 * Do last two lines
642 */
643 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
644 LINE_WITH_UV
3f9bff71 645 }
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646 read(s->fd,src,s->width*2);
647 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
648 LINE_NO_UV
649 }
650 /* drop second field */
651 while (read(s->fd,src,s->width*2) < 0) {
652 usleep(100);
653 }
654 for (h = 0; h < s->height - 1; h++) {
655 read(s->fd,src,s->width*2);
656 }
657 } else if (s->halfw == 1) {
3f9bff71 658#ifdef HAVE_MMX
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659 mmx_t rounder;
660 mmx_t masker;
661 rounder.uw[0]=1;
662 rounder.uw[1]=1;
663 rounder.uw[2]=1;
664 rounder.uw[3]=1;
665 masker.ub[0]=0xff;
666 masker.ub[1]=0;
667 masker.ub[2]=0xff;
668 masker.ub[3]=0;
669 masker.ub[4]=0xff;
670 masker.ub[5]=0;
671 masker.ub[6]=0xff;
672 masker.ub[7]=0;
673 pxor_r2r(mm7,mm7);
674 movq_m2r(rounder,mm6);
3f9bff71 675#endif
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676 while (read(s->fd,src,s->width*4) < 0) {
677 usleep(100);
678 }
679 ptrend = &src[s->width*4];
680 for (h = 0; h < s->height-2; h+=2) {
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681 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
682 LINE_WITHUV_AVG
8949367e 683 }
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684 read(s->fd,src,s->width*4);
685#ifdef HAVE_MMX
686 movq_m2r(masker,mm5);
687#endif
688 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
689 LINE_NOUV_AVG
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690 }
691 read(s->fd,src,s->width*4);
692 }
693 /*
694 * Do last two lines
695 */
696 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
697 LINE_WITHUV_AVG
698 }
699 read(s->fd,src,s->width*4);
700#ifdef HAVE_MMX
701 movq_m2r(masker,mm5);
702#endif
703 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
704 LINE_NOUV_AVG
705 }
706 /* drop second field */
707 while (read(s->fd,src,s->width*4) < 0) {
708 usleep(100);
709 }
710 for (h = 0; h < s->height - 1; h++) {
711 read(s->fd,src,s->width*4);
712 }
713 } else {
714 UINT8 *lum_m1, *lum_m2, *lum_m3, *lum_m4;
3f9bff71 715#ifdef HAVE_MMX
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716 mmx_t rounder;
717 rounder.uw[0]=4;
718 rounder.uw[1]=4;
719 rounder.uw[2]=4;
720 rounder.uw[3]=4;
721 movq_m2r(rounder,mm6);
722 pxor_r2r(mm7,mm7);
3f9bff71 723#else
8949367e 724 UINT8 *cm = cropTbl + MAX_NEG_CROP;
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725#endif
726
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727 /* read two fields and deinterlace them */
728 while (read(s->fd,src,s->width*2) < 0) {
729 usleep(100);
730 }
731 for (h = 0; h < (s->height/2)-2; h+=2) {
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732 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
733 LINE_WITH_UV
8949367e 734 }
3f9bff71 735 read(s->fd,src,s->width*2);
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736 /* skip a luminance line - will be filled in later */
737 lum += s->width;
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738 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
739 LINE_WITH_UV
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740 }
741 /* skip a luminance line - will be filled in later */
742 lum += s->width;
743 read(s->fd,src,s->width*2);
744 }
745 /*
746 * Do last two lines
747 */
748 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
749 LINE_WITH_UV
750 }
751 /* skip a luminance line - will be filled in later */
752 lum += s->width;
753 read(s->fd,src,s->width*2);
754 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
755 LINE_WITH_UV
756 }
757 /*
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758 *
759 * SECOND FIELD
760 *
761 */
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762 lum=&data[s->width];
763 while (read(s->fd,src,s->width*2) < 0) {
764 usleep(10);
765 }
766 /* First (and last) two lines not interlaced */
767 for (h = 0; h < 2; h++) {
768 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
769 LINE_NO_UV
770 }
771 read(s->fd,src,s->width*2);
772 /* skip a luminance line */
773 lum += s->width;
774 }
775 lum_m1=&lum[-s->width];
776 lum_m2=&lum_m1[-s->width];
777 lum_m3=&lum_m2[-s->width];
778 memmove(s->lum_m4_mem,&lum_m3[-s->width],s->width);
779 for (; h < (s->height/2)-1; h++) {
780 lum_m4=s->lum_m4_mem;
781 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16,lum_m1+=16,lum_m2+=16,lum_m3+=16,lum_m4+=16) {
782 LINE_NO_UV
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783
784 DEINT_LINE_LUM(0)
785 DEINT_LINE_LUM(4)
786 DEINT_LINE_LUM(8)
787 DEINT_LINE_LUM(12)
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788 }
789 read(s->fd,src,s->width*2);
790 /* skip a luminance line */
791 lum += s->width;
792 lum_m1 += s->width;
793 lum_m2 += s->width;
794 lum_m3 += s->width;
795 // lum_m4 += s->width;
796 }
797 /*
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798 * Do last line
799 */
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800 lum_m4=s->lum_m4_mem;
801 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, lum_m1+=16, lum_m2+=16, lum_m3+=16, lum_m4+=16) {
802 LINE_NO_UV
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803
804 DEINT_LINE_LUM(0)
805 DEINT_LINE_LUM(4)
806 DEINT_LINE_LUM(8)
807 DEINT_LINE_LUM(12)
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808 }
809 }
3f9bff71 810#ifdef HAVE_MMX
8949367e 811 emms();
3f9bff71 812#endif
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813 return s->frame_size;
814}
815
8949367e 816static int aiw_close(VideoData *s)
3f9bff71 817{
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818 av_freep(&s->lum_m4_mem);
819 av_freep(&s->src_mem);
3f9bff71
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820 return 0;
821}
822
c9a65ca8
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823int video_grab_init(void)
824{
825 av_register_input_format(&video_grab_device_format);
826 return 0;
827}