This fixes error handling for BeOS, removing the need for some ifdefs.
[libav.git] / libavformat / grab.c
1 /*
2 * Linux video grab interface
3 * Copyright (c) 2000,2001 Fabrice Bellard.
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21 #include "avformat.h"
22 #include <unistd.h>
23 #include <fcntl.h>
24 #include <sys/ioctl.h>
25 #include <sys/mman.h>
26 #include <sys/time.h>
27 #define _LINUX_TIME_H 1
28 #include <linux/videodev.h>
29 #include <time.h>
30
31 typedef struct {
32 int fd;
33 int frame_format; /* see VIDEO_PALETTE_xxx */
34 int use_mmap;
35 int width, height;
36 int frame_rate;
37 int frame_rate_base;
38 int64_t time_frame;
39 int frame_size;
40 struct video_capability video_cap;
41 struct video_audio audio_saved;
42 uint8_t *video_buf;
43 struct video_mbuf gb_buffers;
44 struct video_mmap gb_buf;
45 int gb_frame;
46
47 /* ATI All In Wonder specific stuff */
48 /* XXX: remove and merge in libavcodec/imgconvert.c */
49 int aiw_enabled;
50 int deint;
51 int halfw;
52 uint8_t *src_mem;
53 uint8_t *lum_m4_mem;
54 } VideoData;
55
56 static int aiw_init(VideoData *s);
57 static int aiw_read_picture(VideoData *s, uint8_t *data);
58 static int aiw_close(VideoData *s);
59
60 static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
61 {
62 VideoData *s = s1->priv_data;
63 AVStream *st;
64 int width, height;
65 int video_fd, frame_size;
66 int ret, frame_rate, frame_rate_base;
67 int desired_palette, desired_depth;
68 struct video_tuner tuner;
69 struct video_audio audio;
70 struct video_picture pict;
71 const char *video_device;
72 int j;
73
74 if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
75 av_log(s1, AV_LOG_ERROR, "Bad capture size (%dx%d) or wrong time base (%d)\n",
76 ap->width, ap->height, ap->time_base.den);
77
78 return -1;
79 }
80
81 width = ap->width;
82 height = ap->height;
83 frame_rate = ap->time_base.den;
84 frame_rate_base = ap->time_base.num;
85
86 if((unsigned)width > 32767 || (unsigned)height > 32767) {
87 av_log(s1, AV_LOG_ERROR, "Capture size is out of range: %dx%d\n",
88 width, height);
89
90 return -1;
91 }
92
93 st = av_new_stream(s1, 0);
94 if (!st)
95 return AVERROR(ENOMEM);
96 av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
97
98 s->width = width;
99 s->height = height;
100 s->frame_rate = frame_rate;
101 s->frame_rate_base = frame_rate_base;
102
103 video_device = ap->device;
104 if (!video_device)
105 video_device = "/dev/video";
106 video_fd = open(video_device, O_RDWR);
107 if (video_fd < 0) {
108 perror(video_device);
109 goto fail;
110 }
111
112 if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
113 perror("VIDIOCGCAP");
114 goto fail;
115 }
116
117 if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
118 av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not handle capture\n");
119 goto fail;
120 }
121
122 desired_palette = -1;
123 desired_depth = -1;
124 if (ap->pix_fmt == PIX_FMT_YUV420P) {
125 desired_palette = VIDEO_PALETTE_YUV420P;
126 desired_depth = 12;
127 } else if (ap->pix_fmt == PIX_FMT_YUYV422) {
128 desired_palette = VIDEO_PALETTE_YUV422;
129 desired_depth = 16;
130 } else if (ap->pix_fmt == PIX_FMT_BGR24) {
131 desired_palette = VIDEO_PALETTE_RGB24;
132 desired_depth = 24;
133 }
134
135 /* set tv standard */
136 if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
137 if (!strcasecmp(ap->standard, "pal"))
138 tuner.mode = VIDEO_MODE_PAL;
139 else if (!strcasecmp(ap->standard, "secam"))
140 tuner.mode = VIDEO_MODE_SECAM;
141 else
142 tuner.mode = VIDEO_MODE_NTSC;
143 ioctl(video_fd, VIDIOCSTUNER, &tuner);
144 }
145
146 /* unmute audio */
147 audio.audio = 0;
148 ioctl(video_fd, VIDIOCGAUDIO, &audio);
149 memcpy(&s->audio_saved, &audio, sizeof(audio));
150 audio.flags &= ~VIDEO_AUDIO_MUTE;
151 ioctl(video_fd, VIDIOCSAUDIO, &audio);
152
153 ioctl(video_fd, VIDIOCGPICT, &pict);
154 #if 0
155 printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
156 pict.colour,
157 pict.hue,
158 pict.brightness,
159 pict.contrast,
160 pict.whiteness);
161 #endif
162 /* try to choose a suitable video format */
163 pict.palette = desired_palette;
164 pict.depth= desired_depth;
165 if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
166 pict.palette=VIDEO_PALETTE_YUV420P;
167 pict.depth=12;
168 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
169 if (ret < 0) {
170 pict.palette=VIDEO_PALETTE_YUV422;
171 pict.depth=16;
172 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
173 if (ret < 0) {
174 pict.palette=VIDEO_PALETTE_RGB24;
175 pict.depth=24;
176 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
177 if (ret < 0) {
178 pict.palette=VIDEO_PALETTE_GREY;
179 pict.depth=8;
180 ret = ioctl(video_fd, VIDIOCSPICT, &pict);
181 if (ret < 0)
182 goto fail1;
183 }
184 }
185 }
186 }
187
188 ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
189 if (ret < 0) {
190 /* try to use read based access */
191 struct video_window win;
192 int val;
193
194 win.x = 0;
195 win.y = 0;
196 win.width = width;
197 win.height = height;
198 win.chromakey = -1;
199 win.flags = 0;
200
201 ioctl(video_fd, VIDIOCSWIN, &win);
202
203 s->frame_format = pict.palette;
204
205 val = 1;
206 ioctl(video_fd, VIDIOCCAPTURE, &val);
207
208 s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
209 s->use_mmap = 0;
210
211 /* ATI All In Wonder automatic activation */
212 if (!strcmp(s->video_cap.name, "Km")) {
213 if (aiw_init(s) < 0)
214 goto fail;
215 s->aiw_enabled = 1;
216 /* force 420P format because convertion from YUV422 to YUV420P
217 is done in this driver (ugly) */
218 s->frame_format = VIDEO_PALETTE_YUV420P;
219 }
220 } else {
221 s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
222 if ((unsigned char*)-1 == s->video_buf) {
223 s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_PRIVATE,video_fd,0);
224 if ((unsigned char*)-1 == s->video_buf) {
225 perror("mmap");
226 goto fail;
227 }
228 }
229 s->gb_frame = 0;
230 s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
231
232 /* start to grab the first frame */
233 s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
234 s->gb_buf.height = height;
235 s->gb_buf.width = width;
236 s->gb_buf.format = pict.palette;
237
238 ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
239 if (ret < 0) {
240 if (errno != EAGAIN) {
241 fail1:
242 av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not support suitable format\n");
243 } else {
244 av_log(s1, AV_LOG_ERROR,"Fatal: grab device does not receive any video signal\n");
245 }
246 goto fail;
247 }
248 for (j = 1; j < s->gb_buffers.frames; j++) {
249 s->gb_buf.frame = j;
250 ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
251 }
252 s->frame_format = s->gb_buf.format;
253 s->use_mmap = 1;
254 }
255
256 switch(s->frame_format) {
257 case VIDEO_PALETTE_YUV420P:
258 frame_size = (width * height * 3) / 2;
259 st->codec->pix_fmt = PIX_FMT_YUV420P;
260 break;
261 case VIDEO_PALETTE_YUV422:
262 frame_size = width * height * 2;
263 st->codec->pix_fmt = PIX_FMT_YUYV422;
264 break;
265 case VIDEO_PALETTE_RGB24:
266 frame_size = width * height * 3;
267 st->codec->pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
268 break;
269 case VIDEO_PALETTE_GREY:
270 frame_size = width * height * 1;
271 st->codec->pix_fmt = PIX_FMT_GRAY8;
272 break;
273 default:
274 goto fail;
275 }
276 s->fd = video_fd;
277 s->frame_size = frame_size;
278
279 st->codec->codec_type = CODEC_TYPE_VIDEO;
280 st->codec->codec_id = CODEC_ID_RAWVIDEO;
281 st->codec->width = width;
282 st->codec->height = height;
283 st->codec->time_base.den = frame_rate;
284 st->codec->time_base.num = frame_rate_base;
285 st->codec->bit_rate = frame_size * 1/av_q2d(st->codec->time_base) * 8;
286
287 return 0;
288 fail:
289 if (video_fd >= 0)
290 close(video_fd);
291 av_free(st);
292 return AVERROR_IO;
293 }
294
295 static int v4l_mm_read_picture(VideoData *s, uint8_t *buf)
296 {
297 uint8_t *ptr;
298
299 while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
300 (errno == EAGAIN || errno == EINTR));
301
302 ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
303 memcpy(buf, ptr, s->frame_size);
304
305 /* Setup to capture the next frame */
306 s->gb_buf.frame = s->gb_frame;
307 if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
308 if (errno == EAGAIN)
309 av_log(NULL, AV_LOG_ERROR, "Cannot Sync\n");
310 else
311 perror("VIDIOCMCAPTURE");
312 return AVERROR_IO;
313 }
314
315 /* This is now the grabbing frame */
316 s->gb_frame = (s->gb_frame + 1) % s->gb_buffers.frames;
317
318 return s->frame_size;
319 }
320
321 static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
322 {
323 VideoData *s = s1->priv_data;
324 int64_t curtime, delay;
325 struct timespec ts;
326
327 /* Calculate the time of the next frame */
328 s->time_frame += INT64_C(1000000);
329
330 /* wait based on the frame rate */
331 for(;;) {
332 curtime = av_gettime();
333 delay = s->time_frame * s->frame_rate_base / s->frame_rate - curtime;
334 if (delay <= 0) {
335 if (delay < INT64_C(-1000000) * s->frame_rate_base / s->frame_rate) {
336 /* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
337 s->time_frame += INT64_C(1000000);
338 }
339 break;
340 }
341 ts.tv_sec = delay / 1000000;
342 ts.tv_nsec = (delay % 1000000) * 1000;
343 nanosleep(&ts, NULL);
344 }
345
346 if (av_new_packet(pkt, s->frame_size) < 0)
347 return AVERROR_IO;
348
349 pkt->pts = curtime;
350
351 /* read one frame */
352 if (s->aiw_enabled) {
353 return aiw_read_picture(s, pkt->data);
354 } else if (s->use_mmap) {
355 return v4l_mm_read_picture(s, pkt->data);
356 } else {
357 if (read(s->fd, pkt->data, pkt->size) != pkt->size)
358 return AVERROR_IO;
359 return s->frame_size;
360 }
361 }
362
363 static int grab_read_close(AVFormatContext *s1)
364 {
365 VideoData *s = s1->priv_data;
366
367 if (s->aiw_enabled)
368 aiw_close(s);
369
370 if (s->use_mmap)
371 munmap(s->video_buf, s->gb_buffers.size);
372
373 /* mute audio. we must force it because the BTTV driver does not
374 return its state correctly */
375 s->audio_saved.flags |= VIDEO_AUDIO_MUTE;
376 ioctl(s->fd, VIDIOCSAUDIO, &s->audio_saved);
377
378 close(s->fd);
379 return 0;
380 }
381
382 AVInputFormat video_grab_device_demuxer = {
383 "video4linux",
384 "video grab",
385 sizeof(VideoData),
386 NULL,
387 grab_read_header,
388 grab_read_packet,
389 grab_read_close,
390 .flags = AVFMT_NOFILE,
391 };
392
393 /* All in Wonder specific stuff */
394 /* XXX: remove and merge in libavcodec/imgconvert.c */
395
396 static int aiw_init(VideoData *s)
397 {
398 int width, height;
399
400 width = s->width;
401 height = s->height;
402
403 if ((width == s->video_cap.maxwidth && height == s->video_cap.maxheight) ||
404 (width == s->video_cap.maxwidth && height == s->video_cap.maxheight*2) ||
405 (width == s->video_cap.maxwidth/2 && height == s->video_cap.maxheight)) {
406
407 s->deint=0;
408 s->halfw=0;
409 if (height == s->video_cap.maxheight*2) s->deint=1;
410 if (width == s->video_cap.maxwidth/2) s->halfw=1;
411 } else {
412 av_log(NULL, AV_LOG_ERROR, "\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
413 av_log(NULL, AV_LOG_ERROR, " %dx%d %dx%d %dx%d\n\n",
414 s->video_cap.maxwidth,s->video_cap.maxheight,
415 s->video_cap.maxwidth,s->video_cap.maxheight*2,
416 s->video_cap.maxwidth/2,s->video_cap.maxheight);
417 goto fail;
418 }
419
420 if (s->halfw == 0) {
421 s->src_mem = av_malloc(s->width*2);
422 } else {
423 s->src_mem = av_malloc(s->width*4);
424 }
425 if (!s->src_mem) goto fail;
426
427 s->lum_m4_mem = av_malloc(s->width);
428 if (!s->lum_m4_mem)
429 goto fail;
430 return 0;
431 fail:
432 av_freep(&s->src_mem);
433 av_freep(&s->lum_m4_mem);
434 return -1;
435 }
436
437 #ifdef HAVE_MMX
438 #include "libavcodec/i386/mmx.h"
439
440 #define LINE_WITH_UV \
441 movq_m2r(ptr[0],mm0); \
442 movq_m2r(ptr[8],mm1); \
443 movq_r2r(mm0, mm4); \
444 punpcklbw_r2r(mm1,mm0); \
445 punpckhbw_r2r(mm1,mm4); \
446 movq_r2r(mm0,mm5); \
447 punpcklbw_r2r(mm4,mm0); \
448 punpckhbw_r2r(mm4,mm5); \
449 movq_r2r(mm0,mm1); \
450 punpcklbw_r2r(mm5,mm1); \
451 movq_r2m(mm1,lum[0]); \
452 movq_m2r(ptr[16],mm2); \
453 movq_m2r(ptr[24],mm1); \
454 movq_r2r(mm2,mm4); \
455 punpcklbw_r2r(mm1,mm2); \
456 punpckhbw_r2r(mm1,mm4); \
457 movq_r2r(mm2,mm3); \
458 punpcklbw_r2r(mm4,mm2); \
459 punpckhbw_r2r(mm4,mm3); \
460 movq_r2r(mm2,mm1); \
461 punpcklbw_r2r(mm3,mm1); \
462 movq_r2m(mm1,lum[8]); \
463 punpckhdq_r2r(mm2,mm0); \
464 punpckhdq_r2r(mm3,mm5); \
465 movq_r2m(mm0,cb[0]); \
466 movq_r2m(mm5,cr[0]);
467
468 #define LINE_NO_UV \
469 movq_m2r(ptr[0],mm0);\
470 movq_m2r(ptr[8],mm1);\
471 movq_r2r(mm0, mm4);\
472 punpcklbw_r2r(mm1,mm0); \
473 punpckhbw_r2r(mm1,mm4);\
474 movq_r2r(mm0,mm5);\
475 punpcklbw_r2r(mm4,mm0);\
476 punpckhbw_r2r(mm4,mm5);\
477 movq_r2r(mm0,mm1);\
478 punpcklbw_r2r(mm5,mm1);\
479 movq_r2m(mm1,lum[0]);\
480 movq_m2r(ptr[16],mm2);\
481 movq_m2r(ptr[24],mm1);\
482 movq_r2r(mm2,mm4);\
483 punpcklbw_r2r(mm1,mm2);\
484 punpckhbw_r2r(mm1,mm4);\
485 movq_r2r(mm2,mm3);\
486 punpcklbw_r2r(mm4,mm2);\
487 punpckhbw_r2r(mm4,mm3);\
488 movq_r2r(mm2,mm1);\
489 punpcklbw_r2r(mm3,mm1);\
490 movq_r2m(mm1,lum[8]);
491
492 #define LINE_WITHUV_AVG \
493 movq_m2r(ptr[0], mm0);\
494 movq_m2r(ptr[8], mm1);\
495 movq_r2r(mm0, mm4);\
496 punpcklbw_r2r(mm1,mm0);\
497 punpckhbw_r2r(mm1,mm4);\
498 movq_r2r(mm0,mm5);\
499 punpcklbw_r2r(mm4,mm0);\
500 punpckhbw_r2r(mm4,mm5);\
501 movq_r2r(mm0,mm1);\
502 movq_r2r(mm5,mm2);\
503 punpcklbw_r2r(mm7,mm1);\
504 punpcklbw_r2r(mm7,mm2);\
505 paddw_r2r(mm6,mm1);\
506 paddw_r2r(mm2,mm1);\
507 psraw_i2r(1,mm1);\
508 packuswb_r2r(mm7,mm1);\
509 movd_r2m(mm1,lum[0]);\
510 movq_m2r(ptr[16],mm2);\
511 movq_m2r(ptr[24],mm1);\
512 movq_r2r(mm2,mm4);\
513 punpcklbw_r2r(mm1,mm2);\
514 punpckhbw_r2r(mm1,mm4);\
515 movq_r2r(mm2,mm3);\
516 punpcklbw_r2r(mm4,mm2);\
517 punpckhbw_r2r(mm4,mm3);\
518 movq_r2r(mm2,mm1);\
519 movq_r2r(mm3,mm4);\
520 punpcklbw_r2r(mm7,mm1);\
521 punpcklbw_r2r(mm7,mm4);\
522 paddw_r2r(mm6,mm1);\
523 paddw_r2r(mm4,mm1);\
524 psraw_i2r(1,mm1);\
525 packuswb_r2r(mm7,mm1);\
526 movd_r2m(mm1,lum[4]);\
527 punpckhbw_r2r(mm7,mm0);\
528 punpckhbw_r2r(mm7,mm2);\
529 paddw_r2r(mm6,mm0);\
530 paddw_r2r(mm2,mm0);\
531 psraw_i2r(1,mm0);\
532 packuswb_r2r(mm7,mm0);\
533 punpckhbw_r2r(mm7,mm5);\
534 punpckhbw_r2r(mm7,mm3);\
535 paddw_r2r(mm6,mm5);\
536 paddw_r2r(mm3,mm5);\
537 psraw_i2r(1,mm5);\
538 packuswb_r2r(mm7,mm5);\
539 movd_r2m(mm0,cb[0]);\
540 movd_r2m(mm5,cr[0]);
541
542 #define LINE_NOUV_AVG \
543 movq_m2r(ptr[0],mm0);\
544 movq_m2r(ptr[8],mm1);\
545 pand_r2r(mm5,mm0);\
546 pand_r2r(mm5,mm1);\
547 pmaddwd_r2r(mm6,mm0);\
548 pmaddwd_r2r(mm6,mm1);\
549 packssdw_r2r(mm1,mm0);\
550 paddw_r2r(mm6,mm0);\
551 psraw_i2r(1,mm0);\
552 movq_m2r(ptr[16],mm2);\
553 movq_m2r(ptr[24],mm3);\
554 pand_r2r(mm5,mm2);\
555 pand_r2r(mm5,mm3);\
556 pmaddwd_r2r(mm6,mm2);\
557 pmaddwd_r2r(mm6,mm3);\
558 packssdw_r2r(mm3,mm2);\
559 paddw_r2r(mm6,mm2);\
560 psraw_i2r(1,mm2);\
561 packuswb_r2r(mm2,mm0);\
562 movq_r2m(mm0,lum[0]);
563
564 #define DEINT_LINE_LUM(ptroff) \
565 movd_m2r(lum_m4[(ptroff)],mm0);\
566 movd_m2r(lum_m3[(ptroff)],mm1);\
567 movd_m2r(lum_m2[(ptroff)],mm2);\
568 movd_m2r(lum_m1[(ptroff)],mm3);\
569 movd_m2r(lum[(ptroff)],mm4);\
570 punpcklbw_r2r(mm7,mm0);\
571 movd_r2m(mm2,lum_m4[(ptroff)]);\
572 punpcklbw_r2r(mm7,mm1);\
573 punpcklbw_r2r(mm7,mm2);\
574 punpcklbw_r2r(mm7,mm3);\
575 punpcklbw_r2r(mm7,mm4);\
576 psllw_i2r(2,mm1);\
577 psllw_i2r(1,mm2);\
578 paddw_r2r(mm6,mm1);\
579 psllw_i2r(2,mm3);\
580 paddw_r2r(mm2,mm1);\
581 paddw_r2r(mm4,mm0);\
582 paddw_r2r(mm3,mm1);\
583 psubusw_r2r(mm0,mm1);\
584 psrlw_i2r(3,mm1);\
585 packuswb_r2r(mm7,mm1);\
586 movd_r2m(mm1,lum_m2[(ptroff)]);
587
588 #else
589 #include "libavcodec/dsputil.h"
590
591 #define LINE_WITH_UV \
592 lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
593 cb[0]=ptr[1];cb[1]=ptr[5];\
594 cr[0]=ptr[3];cr[1]=ptr[7];\
595 lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
596 cb[2]=ptr[9];cb[3]=ptr[13];\
597 cr[2]=ptr[11];cr[3]=ptr[15];\
598 lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
599 cb[4]=ptr[17];cb[5]=ptr[21];\
600 cr[4]=ptr[19];cr[5]=ptr[23];\
601 lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];\
602 cb[6]=ptr[25];cb[7]=ptr[29];\
603 cr[6]=ptr[27];cr[7]=ptr[31];
604
605 #define LINE_NO_UV \
606 lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
607 lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
608 lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
609 lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];
610
611 #define LINE_WITHUV_AVG \
612 sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
613 sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
614 sum=(ptr[1]+ptr[5]+1) >> 1;cb[0]=sum; \
615 sum=(ptr[3]+ptr[7]+1) >> 1;cr[0]=sum; \
616 sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
617 sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
618 sum=(ptr[9]+ptr[13]+1) >> 1;cb[1]=sum; \
619 sum=(ptr[11]+ptr[15]+1) >> 1;cr[1]=sum; \
620 sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
621 sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
622 sum=(ptr[17]+ptr[21]+1) >> 1;cb[2]=sum; \
623 sum=(ptr[19]+ptr[23]+1) >> 1;cr[2]=sum; \
624 sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
625 sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum; \
626 sum=(ptr[25]+ptr[29]+1) >> 1;cb[3]=sum; \
627 sum=(ptr[27]+ptr[31]+1) >> 1;cr[3]=sum;
628
629 #define LINE_NOUV_AVG \
630 sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
631 sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
632 sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
633 sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
634 sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
635 sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
636 sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
637 sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum;
638
639 #define DEINT_LINE_LUM(ptroff) \
640 sum=(-lum_m4[(ptroff)]+(lum_m3[(ptroff)]<<2)+(lum_m2[(ptroff)]<<1)+(lum_m1[(ptroff)]<<2)-lum[(ptroff)]); \
641 lum_m4[(ptroff)]=lum_m2[(ptroff)];\
642 lum_m2[(ptroff)]=cm[(sum+4)>>3];\
643 sum=(-lum_m4[(ptroff)+1]+(lum_m3[(ptroff)+1]<<2)+(lum_m2[(ptroff)+1]<<1)+(lum_m1[(ptroff)+1]<<2)-lum[(ptroff)+1]); \
644 lum_m4[(ptroff)+1]=lum_m2[(ptroff)+1];\
645 lum_m2[(ptroff)+1]=cm[(sum+4)>>3];\
646 sum=(-lum_m4[(ptroff)+2]+(lum_m3[(ptroff)+2]<<2)+(lum_m2[(ptroff)+2]<<1)+(lum_m1[(ptroff)+2]<<2)-lum[(ptroff)+2]); \
647 lum_m4[(ptroff)+2]=lum_m2[(ptroff)+2];\
648 lum_m2[(ptroff)+2]=cm[(sum+4)>>3];\
649 sum=(-lum_m4[(ptroff)+3]+(lum_m3[(ptroff)+3]<<2)+(lum_m2[(ptroff)+3]<<1)+(lum_m1[(ptroff)+3]<<2)-lum[(ptroff)+3]); \
650 lum_m4[(ptroff)+3]=lum_m2[(ptroff)+3];\
651 lum_m2[(ptroff)+3]=cm[(sum+4)>>3];
652
653 #endif
654
655
656 /* Read two fields separately. */
657 static int aiw_read_picture(VideoData *s, uint8_t *data)
658 {
659 uint8_t *ptr, *lum, *cb, *cr;
660 int h;
661 #ifndef HAVE_MMX
662 int sum;
663 #endif
664 uint8_t* src = s->src_mem;
665 uint8_t *ptrend = &src[s->width*2];
666 lum=data;
667 cb=&lum[s->width*s->height];
668 cr=&cb[(s->width*s->height)/4];
669 if (s->deint == 0 && s->halfw == 0) {
670 while (read(s->fd,src,s->width*2) < 0) {
671 usleep(100);
672 }
673 for (h = 0; h < s->height-2; h+=2) {
674 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
675 LINE_WITH_UV
676 }
677 read(s->fd,src,s->width*2);
678 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
679 LINE_NO_UV
680 }
681 read(s->fd,src,s->width*2);
682 }
683 /*
684 * Do last two lines
685 */
686 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
687 LINE_WITH_UV
688 }
689 read(s->fd,src,s->width*2);
690 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
691 LINE_NO_UV
692 }
693 /* drop second field */
694 while (read(s->fd,src,s->width*2) < 0) {
695 usleep(100);
696 }
697 for (h = 0; h < s->height - 1; h++) {
698 read(s->fd,src,s->width*2);
699 }
700 } else if (s->halfw == 1) {
701 #ifdef HAVE_MMX
702 mmx_t rounder;
703 mmx_t masker;
704 rounder.uw[0]=1;
705 rounder.uw[1]=1;
706 rounder.uw[2]=1;
707 rounder.uw[3]=1;
708 masker.ub[0]=0xff;
709 masker.ub[1]=0;
710 masker.ub[2]=0xff;
711 masker.ub[3]=0;
712 masker.ub[4]=0xff;
713 masker.ub[5]=0;
714 masker.ub[6]=0xff;
715 masker.ub[7]=0;
716 pxor_r2r(mm7,mm7);
717 movq_m2r(rounder,mm6);
718 #endif
719 while (read(s->fd,src,s->width*4) < 0) {
720 usleep(100);
721 }
722 ptrend = &src[s->width*4];
723 for (h = 0; h < s->height-2; h+=2) {
724 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
725 LINE_WITHUV_AVG
726 }
727 read(s->fd,src,s->width*4);
728 #ifdef HAVE_MMX
729 movq_m2r(masker,mm5);
730 #endif
731 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
732 LINE_NOUV_AVG
733 }
734 read(s->fd,src,s->width*4);
735 }
736 /*
737 * Do last two lines
738 */
739 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
740 LINE_WITHUV_AVG
741 }
742 read(s->fd,src,s->width*4);
743 #ifdef HAVE_MMX
744 movq_m2r(masker,mm5);
745 #endif
746 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
747 LINE_NOUV_AVG
748 }
749 /* drop second field */
750 while (read(s->fd,src,s->width*4) < 0) {
751 usleep(100);
752 }
753 for (h = 0; h < s->height - 1; h++) {
754 read(s->fd,src,s->width*4);
755 }
756 } else {
757 uint8_t *lum_m1, *lum_m2, *lum_m3, *lum_m4;
758 #ifdef HAVE_MMX
759 mmx_t rounder;
760 rounder.uw[0]=4;
761 rounder.uw[1]=4;
762 rounder.uw[2]=4;
763 rounder.uw[3]=4;
764 movq_m2r(rounder,mm6);
765 pxor_r2r(mm7,mm7);
766 #else
767 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
768 #endif
769
770 /* read two fields and deinterlace them */
771 while (read(s->fd,src,s->width*2) < 0) {
772 usleep(100);
773 }
774 for (h = 0; h < (s->height/2)-2; h+=2) {
775 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
776 LINE_WITH_UV
777 }
778 read(s->fd,src,s->width*2);
779 /* skip a luminance line - will be filled in later */
780 lum += s->width;
781 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
782 LINE_WITH_UV
783 }
784 /* skip a luminance line - will be filled in later */
785 lum += s->width;
786 read(s->fd,src,s->width*2);
787 }
788 /*
789 * Do last two lines
790 */
791 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
792 LINE_WITH_UV
793 }
794 /* skip a luminance line - will be filled in later */
795 lum += s->width;
796 read(s->fd,src,s->width*2);
797 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
798 LINE_WITH_UV
799 }
800 /*
801 *
802 * SECOND FIELD
803 *
804 */
805 lum=&data[s->width];
806 while (read(s->fd,src,s->width*2) < 0) {
807 usleep(10);
808 }
809 /* First (and last) two lines not interlaced */
810 for (h = 0; h < 2; h++) {
811 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
812 LINE_NO_UV
813 }
814 read(s->fd,src,s->width*2);
815 /* skip a luminance line */
816 lum += s->width;
817 }
818 lum_m1=&lum[-s->width];
819 lum_m2=&lum_m1[-s->width];
820 lum_m3=&lum_m2[-s->width];
821 memmove(s->lum_m4_mem,&lum_m3[-s->width],s->width);
822 for (; h < (s->height/2)-1; h++) {
823 lum_m4=s->lum_m4_mem;
824 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16,lum_m1+=16,lum_m2+=16,lum_m3+=16,lum_m4+=16) {
825 LINE_NO_UV
826
827 DEINT_LINE_LUM(0)
828 DEINT_LINE_LUM(4)
829 DEINT_LINE_LUM(8)
830 DEINT_LINE_LUM(12)
831 }
832 read(s->fd,src,s->width*2);
833 /* skip a luminance line */
834 lum += s->width;
835 lum_m1 += s->width;
836 lum_m2 += s->width;
837 lum_m3 += s->width;
838 // lum_m4 += s->width;
839 }
840 /*
841 * Do last line
842 */
843 lum_m4=s->lum_m4_mem;
844 for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, lum_m1+=16, lum_m2+=16, lum_m3+=16, lum_m4+=16) {
845 LINE_NO_UV
846
847 DEINT_LINE_LUM(0)
848 DEINT_LINE_LUM(4)
849 DEINT_LINE_LUM(8)
850 DEINT_LINE_LUM(12)
851 }
852 }
853 #ifdef HAVE_MMX
854 emms();
855 #endif
856 return s->frame_size;
857 }
858
859 static int aiw_close(VideoData *s)
860 {
861 av_freep(&s->lum_m4_mem);
862 av_freep(&s->src_mem);
863 return 0;
864 }