move the 0x80 vector outside of the function, thus saving the compiler
[libav.git] / libavformat / grab.c
CommitLineData
de6d9b64
FB
1/*
2 * Linux video grab interface
19720f15 3 * Copyright (c) 2000,2001 Fabrice Bellard.
de6d9b64 4 *
19720f15
FB
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
FB
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
19720f15
FB
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"
de6d9b64
FB
20#include <unistd.h>
21#include <fcntl.h>
22#include <sys/ioctl.h>
23#include <sys/mman.h>
de6d9b64 24#include <sys/time.h>
72a476c1
MN
25#define _LINUX_TIME_H 1
26#include <linux/videodev.h>
608d0dee 27#include <time.h>
de6d9b64
FB
28
29typedef struct {
30 int fd;
31 int frame_format; /* see VIDEO_PALETTE_xxx */
32 int use_mmap;
33 int width, height;
4972b26f 34 int frame_rate;
14bea432 35 int frame_rate_base;
0c1a9eda 36 int64_t time_frame;
4972b26f 37 int frame_size;
8949367e
FB
38 struct video_capability video_cap;
39 struct video_audio audio_saved;
0c1a9eda 40 uint8_t *video_buf;
8949367e
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41 struct video_mbuf gb_buffers;
42 struct video_mmap gb_buf;
43 int gb_frame;
44
45 /* ATI All In Wonder specific stuff */
46 /* XXX: remove and merge in libavcodec/imgconvert.c */
47 int aiw_enabled;
48 int deint;
49 int halfw;
0c1a9eda
ZK
50 uint8_t *src_mem;
51 uint8_t *lum_m4_mem;
de6d9b64
FB
52} VideoData;
53
8949367e
FB
54static int aiw_init(VideoData *s);
55static int aiw_read_picture(VideoData *s, uint8_t *data);
56static int aiw_close(VideoData *s);
de6d9b64 57
4972b26f 58static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
de6d9b64 59{
c9a65ca8 60 VideoData *s = s1->priv_data;
4972b26f 61 AVStream *st;
de6d9b64 62 int width, height;
de6d9b64 63 int video_fd, frame_size;
14bea432 64 int ret, frame_rate, frame_rate_base;
4606ac8d 65 int desired_palette;
e3ee3283 66 struct video_tuner tuner;
8949367e 67 struct video_audio audio;
7f172339 68 const char *video_device;
7aae3168 69 int j;
4972b26f
FB
70
71 if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
72 return -1;
de6d9b64 73
4972b26f
FB
74 width = ap->width;
75 height = ap->height;
14bea432
MN
76 frame_rate = ap->frame_rate;
77 frame_rate_base = ap->frame_rate_base;
4972b26f 78
c9a65ca8
FB
79 st = av_new_stream(s1, 0);
80 if (!st)
4972b26f 81 return -ENOMEM;
4972b26f
FB
82
83 s->width = width;
84 s->height = height;
14bea432
MN
85 s->frame_rate = frame_rate;
86 s->frame_rate_base = frame_rate_base;
de6d9b64 87
7f172339
FB
88 video_device = ap->device;
89 if (!video_device)
90 video_device = "/dev/video";
8aa3ee32 91 video_fd = open(video_device, O_RDWR);
de6d9b64 92 if (video_fd < 0) {
8aa3ee32 93 perror(video_device);
4972b26f 94 goto fail;
de6d9b64
FB
95 }
96
8949367e 97 if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
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FB
98 perror("VIDIOCGCAP");
99 goto fail;
100 }
101
8949367e 102 if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
bc874dae 103 av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not handle capture\n");
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FB
104 goto fail;
105 }
4606ac8d
ZK
106
107 desired_palette = -1;
108 if (st->codec.pix_fmt == PIX_FMT_YUV420P) {
109 desired_palette = VIDEO_PALETTE_YUV420P;
110 } else if (st->codec.pix_fmt == PIX_FMT_YUV422) {
111 desired_palette = VIDEO_PALETTE_YUV422;
112 } else if (st->codec.pix_fmt == PIX_FMT_BGR24) {
113 desired_palette = VIDEO_PALETTE_RGB24;
114 }
e3ee3283
AB
115
116 /* set tv standard */
117 if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
118 if (!strcasecmp(ap->standard, "pal"))
119 tuner.mode = VIDEO_MODE_PAL;
120 else if (!strcasecmp(ap->standard, "secam"))
121 tuner.mode = VIDEO_MODE_SECAM;
122 else
123 tuner.mode = VIDEO_MODE_NTSC;
124 ioctl(video_fd, VIDIOCSTUNER, &tuner);
125 }
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126
127 /* unmute audio */
8949367e 128 audio.audio = 0;
de6d9b64 129 ioctl(video_fd, VIDIOCGAUDIO, &audio);
8949367e 130 memcpy(&s->audio_saved, &audio, sizeof(audio));
de6d9b64
FB
131 audio.flags &= ~VIDEO_AUDIO_MUTE;
132 ioctl(video_fd, VIDIOCSAUDIO, &audio);
133
8949367e 134 ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
de6d9b64
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135 if (ret < 0) {
136 /* try to use read based access */
137 struct video_window win;
138 struct video_picture pict;
139 int val;
140
141 win.x = 0;
142 win.y = 0;
143 win.width = width;
144 win.height = height;
145 win.chromakey = -1;
146 win.flags = 0;
147
148 ioctl(video_fd, VIDIOCSWIN, &win);
149
150 ioctl(video_fd, VIDIOCGPICT, &pict);
151#if 0
152 printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
153 pict.colour,
154 pict.hue,
155 pict.brightness,
156 pict.contrast,
157 pict.whiteness);
158#endif
159 /* try to choose a suitable video format */
4606ac8d
ZK
160 pict.palette = desired_palette;
161 if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
162 pict.palette=VIDEO_PALETTE_YUV420P;
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163 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
164 if (ret < 0) {
4606ac8d 165 pict.palette=VIDEO_PALETTE_YUV422;
de6d9b64 166 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
4606ac8d
ZK
167 if (ret < 0) {
168 pict.palette=VIDEO_PALETTE_RGB24;
169 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
170 if (ret < 0)
171 goto fail1;
172 }
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FB
173 }
174 }
175
176 s->frame_format = pict.palette;
177
178 val = 1;
179 ioctl(video_fd, VIDIOCCAPTURE, &val);
180
a11bf0bd 181 s->time_frame = av_gettime();
de6d9b64 182 s->use_mmap = 0;
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FB
183
184 /* ATI All In Wonder automatic activation */
185 if (!strcmp(s->video_cap.name, "Km")) {
186 if (aiw_init(s) < 0)
187 goto fail;
188 s->aiw_enabled = 1;
189 /* force 420P format because convertion from YUV422 to YUV420P
190 is done in this driver (ugly) */
191 s->frame_format = VIDEO_PALETTE_YUV420P;
192 }
de6d9b64 193 } else {
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194 s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
195 if ((unsigned char*)-1 == s->video_buf) {
de6d9b64
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196 perror("mmap");
197 goto fail;
198 }
8949367e 199 s->gb_frame = 0;
a11bf0bd 200 s->time_frame = av_gettime();
de6d9b64
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201
202 /* start to grab the first frame */
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203 s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
204 s->gb_buf.height = height;
205 s->gb_buf.width = width;
206 s->gb_buf.format = desired_palette;
4606ac8d 207
8949367e
FB
208 if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf)) < 0) {
209 s->gb_buf.format = VIDEO_PALETTE_YUV420P;
de6d9b64 210
8949367e 211 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
4606ac8d
ZK
212 if (ret < 0 && errno != EAGAIN) {
213 /* try YUV422 */
8949367e 214 s->gb_buf.format = VIDEO_PALETTE_YUV422;
4606ac8d 215
8949367e 216 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
4606ac8d
ZK
217 if (ret < 0 && errno != EAGAIN) {
218 /* try RGB24 */
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FB
219 s->gb_buf.format = VIDEO_PALETTE_RGB24;
220 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
4606ac8d
ZK
221 }
222 }
de6d9b64
FB
223 }
224 if (ret < 0) {
225 if (errno != EAGAIN) {
226 fail1:
bc874dae 227 av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not support suitable format\n");
de6d9b64 228 } else {
bc874dae 229 av_log(s1, AV_LOG_ERROR,"Fatal: grab device does not receive any video signal\n");
de6d9b64
FB
230 }
231 goto fail;
232 }
7aae3168
MN
233 for (j = 1; j < s->gb_buffers.frames; j++) {
234 s->gb_buf.frame = j;
235 ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
236 }
8949367e 237 s->frame_format = s->gb_buf.format;
de6d9b64
FB
238 s->use_mmap = 1;
239 }
240
241 switch(s->frame_format) {
242 case VIDEO_PALETTE_YUV420P:
243 frame_size = (width * height * 3) / 2;
4972b26f 244 st->codec.pix_fmt = PIX_FMT_YUV420P;
de6d9b64
FB
245 break;
246 case VIDEO_PALETTE_YUV422:
247 frame_size = width * height * 2;
4972b26f 248 st->codec.pix_fmt = PIX_FMT_YUV422;
de6d9b64
FB
249 break;
250 case VIDEO_PALETTE_RGB24:
251 frame_size = width * height * 3;
4972b26f 252 st->codec.pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
de6d9b64
FB
253 break;
254 default:
255 goto fail;
256 }
257 s->fd = video_fd;
4972b26f
FB
258 s->frame_size = frame_size;
259
28c66901 260 st->codec.codec_type = CODEC_TYPE_VIDEO;
4972b26f
FB
261 st->codec.codec_id = CODEC_ID_RAWVIDEO;
262 st->codec.width = width;
263 st->codec.height = height;
14bea432
MN
264 st->codec.frame_rate = frame_rate;
265 st->codec.frame_rate_base = frame_rate_base;
86f2b9d0 266
45dd5c69
FB
267 av_set_pts_info(s1, 48, 1, 1000000); /* 48 bits pts in us */
268
de6d9b64
FB
269 return 0;
270 fail:
4972b26f
FB
271 if (video_fd >= 0)
272 close(video_fd);
1ea4f593 273 av_free(st);
de6d9b64
FB
274 return -EIO;
275}
276
0c1a9eda 277static int v4l_mm_read_picture(VideoData *s, uint8_t *buf)
de6d9b64 278{
0c1a9eda 279 uint8_t *ptr;
de6d9b64 280
7aae3168
MN
281 while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
282 (errno == EAGAIN || errno == EINTR));
283
284 ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
285 memcpy(buf, ptr, s->frame_size);
286
4606ac8d 287 /* Setup to capture the next frame */
7aae3168 288 s->gb_buf.frame = s->gb_frame;
8949367e 289 if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
28c66901 290 if (errno == EAGAIN)
bc874dae 291 av_log(NULL, AV_LOG_ERROR, "Cannot Sync\n");
28c66901 292 else
de6d9b64 293 perror("VIDIOCMCAPTURE");
28c66901 294 return -EIO;
de6d9b64 295 }
4606ac8d 296
4606ac8d 297 /* This is now the grabbing frame */
7aae3168 298 s->gb_frame = (s->gb_frame + 1) % s->gb_buffers.frames;
4606ac8d 299
4972b26f 300 return s->frame_size;
de6d9b64
FB
301}
302
4972b26f 303static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
de6d9b64 304{
4972b26f 305 VideoData *s = s1->priv_data;
0c1a9eda 306 int64_t curtime, delay;
4972b26f 307 struct timespec ts;
14bea432 308 int64_t per_frame = (int64_t_C(1000000) * s->frame_rate_base) / s->frame_rate;
4606ac8d
ZK
309
310 /* Calculate the time of the next frame */
311 s->time_frame += per_frame;
de6d9b64
FB
312
313 /* wait based on the frame rate */
45dd5c69 314 for(;;) {
a11bf0bd 315 curtime = av_gettime();
4972b26f 316 delay = s->time_frame - curtime;
4606ac8d
ZK
317 if (delay <= 0) {
318 if (delay < -per_frame) {
319 /* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
4606ac8d
ZK
320 s->time_frame += per_frame;
321 }
4972b26f 322 break;
4606ac8d 323 }
4972b26f
FB
324 ts.tv_sec = delay / 1000000;
325 ts.tv_nsec = (delay % 1000000) * 1000;
326 nanosleep(&ts, NULL);
327 }
328
329 if (av_new_packet(pkt, s->frame_size) < 0)
330 return -EIO;
de6d9b64 331
45dd5c69
FB
332 pkt->pts = curtime & ((1LL << 48) - 1);
333
de6d9b64 334 /* read one frame */
8949367e
FB
335 if (s->aiw_enabled) {
336 return aiw_read_picture(s, pkt->data);
337 } else if (s->use_mmap) {
4972b26f 338 return v4l_mm_read_picture(s, pkt->data);
de6d9b64 339 } else {
4972b26f 340 if (read(s->fd, pkt->data, pkt->size) != pkt->size)
de6d9b64 341 return -EIO;
4972b26f 342 return s->frame_size;
de6d9b64
FB
343 }
344}
345
4972b26f 346static int grab_read_close(AVFormatContext *s1)
de6d9b64 347{
4972b26f 348 VideoData *s = s1->priv_data;
e61efa24 349
8949367e
FB
350 if (s->aiw_enabled)
351 aiw_close(s);
352
e61efa24 353 if (s->use_mmap)
8949367e 354 munmap(s->video_buf, s->gb_buffers.size);
e61efa24 355
8949367e
FB
356 /* mute audio. we must force it because the BTTV driver does not
357 return its state correctly */
358 s->audio_saved.flags |= VIDEO_AUDIO_MUTE;
359 ioctl(s->fd, VIDIOCSAUDIO, &s->audio_saved);
5a56c87c 360
de6d9b64 361 close(s->fd);
de6d9b64
FB
362 return 0;
363}
364
c18a2692 365static AVInputFormat video_grab_device_format = {
8aa3ee32 366 "video4linux",
4972b26f 367 "video grab",
c9a65ca8 368 sizeof(VideoData),
4972b26f 369 NULL,
4972b26f
FB
370 grab_read_header,
371 grab_read_packet,
372 grab_read_close,
bb76a117 373 .flags = AVFMT_NOFILE,
de6d9b64 374};
c9a65ca8 375
8949367e
FB
376/* All in Wonder specific stuff */
377/* XXX: remove and merge in libavcodec/imgconvert.c */
3f9bff71 378
8949367e 379static int aiw_init(VideoData *s)
3f9bff71 380{
3f9bff71 381 int width, height;
3f9bff71 382
8949367e
FB
383 width = s->width;
384 height = s->height;
3f9bff71 385
8949367e
FB
386 if ((width == s->video_cap.maxwidth && height == s->video_cap.maxheight) ||
387 (width == s->video_cap.maxwidth && height == s->video_cap.maxheight*2) ||
388 (width == s->video_cap.maxwidth/2 && height == s->video_cap.maxheight)) {
389
390 s->deint=0;
391 s->halfw=0;
392 if (height == s->video_cap.maxheight*2) s->deint=1;
393 if (width == s->video_cap.maxwidth/2) s->halfw=1;
3f9bff71 394 } else {
bc874dae
MB
395 av_log(NULL, AV_LOG_ERROR, "\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
396 av_log(NULL, AV_LOG_ERROR, " %dx%d %dx%d %dx%d\n\n",
8949367e
FB
397 s->video_cap.maxwidth,s->video_cap.maxheight,
398 s->video_cap.maxwidth,s->video_cap.maxheight*2,
399 s->video_cap.maxwidth/2,s->video_cap.maxheight);
3f9bff71
MN
400 goto fail;
401 }
402
3f9bff71
MN
403 if (s->halfw == 0) {
404 s->src_mem = av_malloc(s->width*2);
405 } else {
406 s->src_mem = av_malloc(s->width*4);
407 }
408 if (!s->src_mem) goto fail;
409
410 s->lum_m4_mem = av_malloc(s->width);
8949367e 411 if (!s->lum_m4_mem)
3f9bff71 412 goto fail;
3f9bff71
MN
413 return 0;
414 fail:
8949367e
FB
415 av_freep(&s->src_mem);
416 av_freep(&s->lum_m4_mem);
417 return -1;
3f9bff71
MN
418}
419
3f9bff71
MN
420#ifdef HAVE_MMX
421#include "../libavcodec/i386/mmx.h"
422
423#define LINE_WITH_UV \
424 movq_m2r(ptr[0],mm0); \
425 movq_m2r(ptr[8],mm1); \
426 movq_r2r(mm0, mm4); \
427 punpcklbw_r2r(mm1,mm0); \
428 punpckhbw_r2r(mm1,mm4); \
429 movq_r2r(mm0,mm5); \
430 punpcklbw_r2r(mm4,mm0); \
431 punpckhbw_r2r(mm4,mm5); \
432 movq_r2r(mm0,mm1); \
433 punpcklbw_r2r(mm5,mm1); \
434 movq_r2m(mm1,lum[0]); \
435 movq_m2r(ptr[16],mm2); \
436 movq_m2r(ptr[24],mm1); \
437 movq_r2r(mm2,mm4); \
438 punpcklbw_r2r(mm1,mm2); \
439 punpckhbw_r2r(mm1,mm4); \
440 movq_r2r(mm2,mm3); \
441 punpcklbw_r2r(mm4,mm2); \
442 punpckhbw_r2r(mm4,mm3); \
443 movq_r2r(mm2,mm1); \
444 punpcklbw_r2r(mm3,mm1); \
445 movq_r2m(mm1,lum[8]); \
446 punpckhdq_r2r(mm2,mm0); \
447 punpckhdq_r2r(mm3,mm5); \
448 movq_r2m(mm0,cb[0]); \
449 movq_r2m(mm5,cr[0]);
450
451#define LINE_NO_UV \
452 movq_m2r(ptr[0],mm0);\
453 movq_m2r(ptr[8],mm1);\
454 movq_r2r(mm0, mm4);\
455 punpcklbw_r2r(mm1,mm0); \
456 punpckhbw_r2r(mm1,mm4);\
457 movq_r2r(mm0,mm5);\
458 punpcklbw_r2r(mm4,mm0);\
459 punpckhbw_r2r(mm4,mm5);\
460 movq_r2r(mm0,mm1);\
461 punpcklbw_r2r(mm5,mm1);\
462 movq_r2m(mm1,lum[0]);\
463 movq_m2r(ptr[16],mm2);\
464 movq_m2r(ptr[24],mm1);\
465 movq_r2r(mm2,mm4);\
466 punpcklbw_r2r(mm1,mm2);\
467 punpckhbw_r2r(mm1,mm4);\
468 movq_r2r(mm2,mm3);\
469 punpcklbw_r2r(mm4,mm2);\
470 punpckhbw_r2r(mm4,mm3);\
471 movq_r2r(mm2,mm1);\
472 punpcklbw_r2r(mm3,mm1);\
473 movq_r2m(mm1,lum[8]);
474
475#define LINE_WITHUV_AVG \
476 movq_m2r(ptr[0], mm0);\
477 movq_m2r(ptr[8], mm1);\
478 movq_r2r(mm0, mm4);\
479 punpcklbw_r2r(mm1,mm0);\
480 punpckhbw_r2r(mm1,mm4);\
481 movq_r2r(mm0,mm5);\
482 punpcklbw_r2r(mm4,mm0);\
483 punpckhbw_r2r(mm4,mm5);\
484 movq_r2r(mm0,mm1);\
485 movq_r2r(mm5,mm2);\
486 punpcklbw_r2r(mm7,mm1);\
487 punpcklbw_r2r(mm7,mm2);\
488 paddw_r2r(mm6,mm1);\
489 paddw_r2r(mm2,mm1);\
490 psraw_i2r(1,mm1);\
491 packuswb_r2r(mm7,mm1);\
492 movd_r2m(mm1,lum[0]);\
493 movq_m2r(ptr[16],mm2);\
494 movq_m2r(ptr[24],mm1);\
495 movq_r2r(mm2,mm4);\
496 punpcklbw_r2r(mm1,mm2);\
497 punpckhbw_r2r(mm1,mm4);\
498 movq_r2r(mm2,mm3);\
499 punpcklbw_r2r(mm4,mm2);\
500 punpckhbw_r2r(mm4,mm3);\
501 movq_r2r(mm2,mm1);\
502 movq_r2r(mm3,mm4);\
503 punpcklbw_r2r(mm7,mm1);\
504 punpcklbw_r2r(mm7,mm4);\
505 paddw_r2r(mm6,mm1);\
506 paddw_r2r(mm4,mm1);\
507 psraw_i2r(1,mm1);\
508 packuswb_r2r(mm7,mm1);\
509 movd_r2m(mm1,lum[4]);\
510 punpckhbw_r2r(mm7,mm0);\
511 punpckhbw_r2r(mm7,mm2);\
512 paddw_r2r(mm6,mm0);\
513 paddw_r2r(mm2,mm0);\
514 psraw_i2r(1,mm0);\
515 packuswb_r2r(mm7,mm0);\
516 punpckhbw_r2r(mm7,mm5);\
517 punpckhbw_r2r(mm7,mm3);\
518 paddw_r2r(mm6,mm5);\
519 paddw_r2r(mm3,mm5);\
520 psraw_i2r(1,mm5);\
521 packuswb_r2r(mm7,mm5);\
522 movd_r2m(mm0,cb[0]);\
523 movd_r2m(mm5,cr[0]);
524
525#define LINE_NOUV_AVG \
526 movq_m2r(ptr[0],mm0);\
527 movq_m2r(ptr[8],mm1);\
528 pand_r2r(mm5,mm0);\
529 pand_r2r(mm5,mm1);\
530 pmaddwd_r2r(mm6,mm0);\
531 pmaddwd_r2r(mm6,mm1);\
532 packssdw_r2r(mm1,mm0);\
533 paddw_r2r(mm6,mm0);\
534 psraw_i2r(1,mm0);\
535 movq_m2r(ptr[16],mm2);\
536 movq_m2r(ptr[24],mm3);\
537 pand_r2r(mm5,mm2);\
538 pand_r2r(mm5,mm3);\
539 pmaddwd_r2r(mm6,mm2);\
540 pmaddwd_r2r(mm6,mm3);\
541 packssdw_r2r(mm3,mm2);\
542 paddw_r2r(mm6,mm2);\
543 psraw_i2r(1,mm2);\
544 packuswb_r2r(mm2,mm0);\
545 movq_r2m(mm0,lum[0]);
546
547#define DEINT_LINE_LUM(ptroff) \
548 movd_m2r(lum_m4[(ptroff)],mm0);\
549 movd_m2r(lum_m3[(ptroff)],mm1);\
550 movd_m2r(lum_m2[(ptroff)],mm2);\
551 movd_m2r(lum_m1[(ptroff)],mm3);\
552 movd_m2r(lum[(ptroff)],mm4);\
553 punpcklbw_r2r(mm7,mm0);\
554 movd_r2m(mm2,lum_m4[(ptroff)]);\
555 punpcklbw_r2r(mm7,mm1);\
556 punpcklbw_r2r(mm7,mm2);\
557 punpcklbw_r2r(mm7,mm3);\
558 punpcklbw_r2r(mm7,mm4);\
559 psllw_i2r(2,mm1);\
560 psllw_i2r(1,mm2);\
561 paddw_r2r(mm6,mm1);\
562 psllw_i2r(2,mm3);\
563 paddw_r2r(mm2,mm1);\
564 paddw_r2r(mm4,mm0);\
565 paddw_r2r(mm3,mm1);\
566 psubusw_r2r(mm0,mm1);\
567 psrlw_i2r(3,mm1);\
568 packuswb_r2r(mm7,mm1);\
569 movd_r2m(mm1,lum_m2[(ptroff)]);
570
571#else
572#include "../libavcodec/dsputil.h"
573
574#define LINE_WITH_UV \
575 lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
576 cb[0]=ptr[1];cb[1]=ptr[5];\
577 cr[0]=ptr[3];cr[1]=ptr[7];\
578 lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
579 cb[2]=ptr[9];cb[3]=ptr[13];\
580 cr[2]=ptr[11];cr[3]=ptr[15];\
581 lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
582 cb[4]=ptr[17];cb[5]=ptr[21];\
583 cr[4]=ptr[19];cr[5]=ptr[23];\
584 lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];\
585 cb[6]=ptr[25];cb[7]=ptr[29];\
586 cr[6]=ptr[27];cr[7]=ptr[31];
587
588#define LINE_NO_UV \
589 lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
590 lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
591 lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
592 lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];
593
594#define LINE_WITHUV_AVG \
595 sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
596 sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
597 sum=(ptr[1]+ptr[5]+1) >> 1;cb[0]=sum; \
598 sum=(ptr[3]+ptr[7]+1) >> 1;cr[0]=sum; \
599 sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
600 sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
601 sum=(ptr[9]+ptr[13]+1) >> 1;cb[1]=sum; \
602 sum=(ptr[11]+ptr[15]+1) >> 1;cr[1]=sum; \
603 sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
604 sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
605 sum=(ptr[17]+ptr[21]+1) >> 1;cb[2]=sum; \
606 sum=(ptr[19]+ptr[23]+1) >> 1;cr[2]=sum; \
607 sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
608 sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum; \
609 sum=(ptr[25]+ptr[29]+1) >> 1;cb[3]=sum; \
610 sum=(ptr[27]+ptr[31]+1) >> 1;cr[3]=sum;
611
612#define LINE_NOUV_AVG \
613 sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
614 sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
615 sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
616 sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
617 sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
618 sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
619 sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
620 sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum;
621
622#define DEINT_LINE_LUM(ptroff) \
623 sum=(-lum_m4[(ptroff)]+(lum_m3[(ptroff)]<<2)+(lum_m2[(ptroff)]<<1)+(lum_m1[(ptroff)]<<2)-lum[(ptroff)]); \
624 lum_m4[(ptroff)]=lum_m2[(ptroff)];\
625 lum_m2[(ptroff)]=cm[(sum+4)>>3];\
626 sum=(-lum_m4[(ptroff)+1]+(lum_m3[(ptroff)+1]<<2)+(lum_m2[(ptroff)+1]<<1)+(lum_m1[(ptroff)+1]<<2)-lum[(ptroff)+1]); \
627 lum_m4[(ptroff)+1]=lum_m2[(ptroff)+1];\
628 lum_m2[(ptroff)+1]=cm[(sum+4)>>3];\
629 sum=(-lum_m4[(ptroff)+2]+(lum_m3[(ptroff)+2]<<2)+(lum_m2[(ptroff)+2]<<1)+(lum_m1[(ptroff)+2]<<2)-lum[(ptroff)+2]); \
630 lum_m4[(ptroff)+2]=lum_m2[(ptroff)+2];\
631 lum_m2[(ptroff)+2]=cm[(sum+4)>>3];\
632 sum=(-lum_m4[(ptroff)+3]+(lum_m3[(ptroff)+3]<<2)+(lum_m2[(ptroff)+3]<<1)+(lum_m1[(ptroff)+3]<<2)-lum[(ptroff)+3]); \
633 lum_m4[(ptroff)+3]=lum_m2[(ptroff)+3];\
634 lum_m2[(ptroff)+3]=cm[(sum+4)>>3];
635
636#endif
637
638
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639/* Read two fields separately. */
640static int aiw_read_picture(VideoData *s, uint8_t *data)
3f9bff71 641{
0c1a9eda 642 uint8_t *ptr, *lum, *cb, *cr;
8949367e 643 int h;
3f9bff71 644#ifndef HAVE_MMX
8949367e 645 int sum;
3f9bff71 646#endif
0c1a9eda
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647 uint8_t* src = s->src_mem;
648 uint8_t *ptrend = &src[s->width*2];
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649 lum=data;
650 cb=&lum[s->width*s->height];
651 cr=&cb[(s->width*s->height)/4];
652 if (s->deint == 0 && s->halfw == 0) {
653 while (read(s->fd,src,s->width*2) < 0) {
654 usleep(100);
655 }
656 for (h = 0; h < s->height-2; h+=2) {
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657 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
658 LINE_WITH_UV
8949367e 659 }
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660 read(s->fd,src,s->width*2);
661 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
662 LINE_NO_UV
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663 }
664 read(s->fd,src,s->width*2);
665 }
666 /*
667 * Do last two lines
668 */
669 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
670 LINE_WITH_UV
3f9bff71 671 }
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672 read(s->fd,src,s->width*2);
673 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
674 LINE_NO_UV
675 }
676 /* drop second field */
677 while (read(s->fd,src,s->width*2) < 0) {
678 usleep(100);
679 }
680 for (h = 0; h < s->height - 1; h++) {
681 read(s->fd,src,s->width*2);
682 }
683 } else if (s->halfw == 1) {
3f9bff71 684#ifdef HAVE_MMX
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685 mmx_t rounder;
686 mmx_t masker;
687 rounder.uw[0]=1;
688 rounder.uw[1]=1;
689 rounder.uw[2]=1;
690 rounder.uw[3]=1;
691 masker.ub[0]=0xff;
692 masker.ub[1]=0;
693 masker.ub[2]=0xff;
694 masker.ub[3]=0;
695 masker.ub[4]=0xff;
696 masker.ub[5]=0;
697 masker.ub[6]=0xff;
698 masker.ub[7]=0;
699 pxor_r2r(mm7,mm7);
700 movq_m2r(rounder,mm6);
3f9bff71 701#endif
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702 while (read(s->fd,src,s->width*4) < 0) {
703 usleep(100);
704 }
705 ptrend = &src[s->width*4];
706 for (h = 0; h < s->height-2; h+=2) {
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707 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
708 LINE_WITHUV_AVG
8949367e 709 }
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710 read(s->fd,src,s->width*4);
711#ifdef HAVE_MMX
712 movq_m2r(masker,mm5);
713#endif
714 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
715 LINE_NOUV_AVG
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716 }
717 read(s->fd,src,s->width*4);
718 }
719 /*
720 * Do last two lines
721 */
722 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
723 LINE_WITHUV_AVG
724 }
725 read(s->fd,src,s->width*4);
726#ifdef HAVE_MMX
727 movq_m2r(masker,mm5);
728#endif
729 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
730 LINE_NOUV_AVG
731 }
732 /* drop second field */
733 while (read(s->fd,src,s->width*4) < 0) {
734 usleep(100);
735 }
736 for (h = 0; h < s->height - 1; h++) {
737 read(s->fd,src,s->width*4);
738 }
739 } else {
0c1a9eda 740 uint8_t *lum_m1, *lum_m2, *lum_m3, *lum_m4;
3f9bff71 741#ifdef HAVE_MMX
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742 mmx_t rounder;
743 rounder.uw[0]=4;
744 rounder.uw[1]=4;
745 rounder.uw[2]=4;
746 rounder.uw[3]=4;
747 movq_m2r(rounder,mm6);
748 pxor_r2r(mm7,mm7);
3f9bff71 749#else
0c1a9eda 750 uint8_t *cm = cropTbl + MAX_NEG_CROP;
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751#endif
752
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753 /* read two fields and deinterlace them */
754 while (read(s->fd,src,s->width*2) < 0) {
755 usleep(100);
756 }
757 for (h = 0; h < (s->height/2)-2; h+=2) {
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758 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
759 LINE_WITH_UV
8949367e 760 }
3f9bff71 761 read(s->fd,src,s->width*2);
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762 /* skip a luminance line - will be filled in later */
763 lum += s->width;
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764 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
765 LINE_WITH_UV
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766 }
767 /* skip a luminance line - will be filled in later */
768 lum += s->width;
769 read(s->fd,src,s->width*2);
770 }
771 /*
772 * Do last two lines
773 */
774 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
775 LINE_WITH_UV
776 }
777 /* skip a luminance line - will be filled in later */
778 lum += s->width;
779 read(s->fd,src,s->width*2);
780 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
781 LINE_WITH_UV
782 }
783 /*
3f9bff71
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784 *
785 * SECOND FIELD
786 *
787 */
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788 lum=&data[s->width];
789 while (read(s->fd,src,s->width*2) < 0) {
790 usleep(10);
791 }
792 /* First (and last) two lines not interlaced */
793 for (h = 0; h < 2; h++) {
794 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
795 LINE_NO_UV
796 }
797 read(s->fd,src,s->width*2);
798 /* skip a luminance line */
799 lum += s->width;
800 }
801 lum_m1=&lum[-s->width];
802 lum_m2=&lum_m1[-s->width];
803 lum_m3=&lum_m2[-s->width];
804 memmove(s->lum_m4_mem,&lum_m3[-s->width],s->width);
805 for (; h < (s->height/2)-1; h++) {
806 lum_m4=s->lum_m4_mem;
807 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16,lum_m1+=16,lum_m2+=16,lum_m3+=16,lum_m4+=16) {
808 LINE_NO_UV
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809
810 DEINT_LINE_LUM(0)
811 DEINT_LINE_LUM(4)
812 DEINT_LINE_LUM(8)
813 DEINT_LINE_LUM(12)
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814 }
815 read(s->fd,src,s->width*2);
816 /* skip a luminance line */
817 lum += s->width;
818 lum_m1 += s->width;
819 lum_m2 += s->width;
820 lum_m3 += s->width;
821 // lum_m4 += s->width;
822 }
823 /*
3f9bff71
MN
824 * Do last line
825 */
8949367e
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826 lum_m4=s->lum_m4_mem;
827 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, lum_m1+=16, lum_m2+=16, lum_m3+=16, lum_m4+=16) {
828 LINE_NO_UV
3f9bff71
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829
830 DEINT_LINE_LUM(0)
831 DEINT_LINE_LUM(4)
832 DEINT_LINE_LUM(8)
833 DEINT_LINE_LUM(12)
8949367e
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834 }
835 }
3f9bff71 836#ifdef HAVE_MMX
8949367e 837 emms();
3f9bff71 838#endif
3f9bff71
MN
839 return s->frame_size;
840}
841
8949367e 842static int aiw_close(VideoData *s)
3f9bff71 843{
8949367e
FB
844 av_freep(&s->lum_m4_mem);
845 av_freep(&s->src_mem);
3f9bff71
MN
846 return 0;
847}
848
c9a65ca8
FB
849int video_grab_init(void)
850{
851 av_register_input_format(&video_grab_device_format);
852 return 0;
853}