/*
* Linux video grab interface
- * Copyright (c) 2000,2001 Gerard Lantau.
+ * Copyright (c) 2000,2001 Fabrice Bellard.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "avformat.h"
#include <linux/videodev.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/time.h>
-
+#include <time.h>
typedef struct {
int fd;
int frame_format; /* see VIDEO_PALETTE_xxx */
int use_mmap;
int width, height;
- float rate;
+ int frame_rate;
INT64 time_frame;
+ int frame_size;
+ struct video_capability video_cap;
+ struct video_audio audio_saved;
+ UINT8 *video_buf;
+ struct video_mbuf gb_buffers;
+ struct video_mmap gb_buf;
+ int gb_frame;
+
+ /* ATI All In Wonder specific stuff */
+ /* XXX: remove and merge in libavcodec/imgconvert.c */
+ int aiw_enabled;
+ int deint;
+ int halfw;
+ UINT8 *src_mem;
+ UINT8 *lum_m4_mem;
} VideoData;
-const char *v4l_device = "/dev/video";
-
-/* XXX: move all that to the context */
+static int aiw_init(VideoData *s);
+static int aiw_read_picture(VideoData *s, uint8_t *data);
+static int aiw_close(VideoData *s);
-static struct video_capability video_cap;
-static UINT8 *video_buf;
-static struct video_mbuf gb_buffers;
-static struct video_mmap gb_buf;
-static struct video_audio audio;
-static int gb_frame = 0;
+const char *v4l_device = "/dev/video";
-static int v4l_init(URLContext *h)
+static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
{
- VideoData *s = h->priv_data;
+ VideoData *s = s1->priv_data;
+ AVStream *st;
int width, height;
- int ret;
int video_fd, frame_size;
+ int ret, frame_rate;
+ int desired_palette;
+ struct video_audio audio;
+
+ if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
+ return -1;
- width = s->width;
- height = s->height;
+ width = ap->width;
+ height = ap->height;
+ frame_rate = ap->frame_rate;
+
+ st = av_new_stream(s1, 0);
+ if (!st)
+ return -ENOMEM;
+
+ s->width = width;
+ s->height = height;
+ s->frame_rate = frame_rate;
video_fd = open(v4l_device, O_RDWR);
if (video_fd < 0) {
perror(v4l_device);
- return -EIO;
+ goto fail;
}
- if (ioctl(video_fd,VIDIOCGCAP,&video_cap) < 0) {
+ if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
perror("VIDIOCGCAP");
goto fail;
}
- if (!(video_cap.type & VID_TYPE_CAPTURE)) {
+ if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
fprintf(stderr, "Fatal: grab device does not handle capture\n");
goto fail;
}
+
+ desired_palette = -1;
+ if (st->codec.pix_fmt == PIX_FMT_YUV420P) {
+ desired_palette = VIDEO_PALETTE_YUV420P;
+ } else if (st->codec.pix_fmt == PIX_FMT_YUV422) {
+ desired_palette = VIDEO_PALETTE_YUV422;
+ } else if (st->codec.pix_fmt == PIX_FMT_BGR24) {
+ desired_palette = VIDEO_PALETTE_RGB24;
+ }
/* unmute audio */
+ audio.audio = 0;
ioctl(video_fd, VIDIOCGAUDIO, &audio);
+ memcpy(&s->audio_saved, &audio, sizeof(audio));
audio.flags &= ~VIDEO_AUDIO_MUTE;
ioctl(video_fd, VIDIOCSAUDIO, &audio);
- ret = ioctl(video_fd,VIDIOCGMBUF,&gb_buffers);
+ ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
if (ret < 0) {
/* try to use read based access */
struct video_window win;
pict.whiteness);
#endif
/* try to choose a suitable video format */
- pict.palette=VIDEO_PALETTE_YUV420P;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0) {
- pict.palette=VIDEO_PALETTE_YUV422;
+ pict.palette = desired_palette;
+ if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
+ pict.palette=VIDEO_PALETTE_YUV420P;
ret = ioctl(video_fd, VIDIOCSPICT, &pict);
if (ret < 0) {
- pict.palette=VIDEO_PALETTE_RGB24;
+ pict.palette=VIDEO_PALETTE_YUV422;
ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0)
- goto fail1;
+ if (ret < 0) {
+ pict.palette=VIDEO_PALETTE_RGB24;
+ ret = ioctl(video_fd, VIDIOCSPICT, &pict);
+ if (ret < 0)
+ goto fail1;
+ }
}
}
val = 1;
ioctl(video_fd, VIDIOCCAPTURE, &val);
- s->time_frame = gettime();
+ s->time_frame = av_gettime();
s->use_mmap = 0;
+
+ /* ATI All In Wonder automatic activation */
+ if (!strcmp(s->video_cap.name, "Km")) {
+ if (aiw_init(s) < 0)
+ goto fail;
+ s->aiw_enabled = 1;
+ /* force 420P format because convertion from YUV422 to YUV420P
+ is done in this driver (ugly) */
+ s->frame_format = VIDEO_PALETTE_YUV420P;
+ }
} else {
- video_buf = mmap(0,gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
- if ((unsigned char*)-1 == video_buf) {
+ s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
+ if ((unsigned char*)-1 == s->video_buf) {
perror("mmap");
goto fail;
}
- gb_frame = 0;
- s->time_frame = gettime();
+ s->gb_frame = 0;
+ s->time_frame = av_gettime();
/* start to grab the first frame */
- gb_buf.frame = 1 - gb_frame;
- gb_buf.height = height;
- gb_buf.width = width;
- gb_buf.format = VIDEO_PALETTE_YUV420P;
-
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &gb_buf);
- if (ret < 0 && errno != EAGAIN) {
- /* try YUV422 */
- gb_buf.format = VIDEO_PALETTE_YUV422;
+ s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
+ s->gb_buf.height = height;
+ s->gb_buf.width = width;
+ s->gb_buf.format = desired_palette;
+
+ if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf)) < 0) {
+ s->gb_buf.format = VIDEO_PALETTE_YUV420P;
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &gb_buf);
- if (ret < 0 && errno != EAGAIN) {
- /* try RGB24 */
- gb_buf.format = VIDEO_PALETTE_RGB24;
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &gb_buf);
- }
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
+ if (ret < 0 && errno != EAGAIN) {
+ /* try YUV422 */
+ s->gb_buf.format = VIDEO_PALETTE_YUV422;
+
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
+ if (ret < 0 && errno != EAGAIN) {
+ /* try RGB24 */
+ s->gb_buf.format = VIDEO_PALETTE_RGB24;
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
+ }
+ }
}
if (ret < 0) {
if (errno != EAGAIN) {
}
goto fail;
}
- s->frame_format = gb_buf.format;
+ s->frame_format = s->gb_buf.format;
s->use_mmap = 1;
}
switch(s->frame_format) {
case VIDEO_PALETTE_YUV420P:
frame_size = (width * height * 3) / 2;
+ st->codec.pix_fmt = PIX_FMT_YUV420P;
break;
case VIDEO_PALETTE_YUV422:
frame_size = width * height * 2;
+ st->codec.pix_fmt = PIX_FMT_YUV422;
break;
case VIDEO_PALETTE_RGB24:
frame_size = width * height * 3;
+ st->codec.pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
break;
default:
goto fail;
}
s->fd = video_fd;
- h->packet_size = frame_size;
+ s->frame_size = frame_size;
+
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec.codec_id = CODEC_ID_RAWVIDEO;
+ st->codec.width = width;
+ st->codec.height = height;
+ st->codec.frame_rate = frame_rate;
+
+ av_set_pts_info(s1, 48, 1, 1000000); /* 48 bits pts in us */
+
return 0;
fail:
- close(video_fd);
+ if (video_fd >= 0)
+ close(video_fd);
+ av_free(st);
return -EIO;
}
-static int v4l_mm_read_picture(URLContext *h, UINT8 *buf)
+static int v4l_mm_read_picture(VideoData *s, UINT8 *buf)
{
- VideoData *s = h->priv_data;
UINT8 *ptr;
- gb_buf.frame = gb_frame;
- if (ioctl(s->fd, VIDIOCMCAPTURE, &gb_buf) < 0) {
- if (errno == EAGAIN)
- fprintf(stderr,"Cannot Sync\n");
- else
+ /* Setup to capture the next frame */
+ s->gb_buf.frame = (s->gb_frame + 1) % s->gb_buffers.frames;
+ if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
+ if (errno == EAGAIN)
+ fprintf(stderr,"Cannot Sync\n");
+ else
perror("VIDIOCMCAPTURE");
- return -EIO;
+ return -EIO;
}
- gb_frame = 1 - gb_frame;
- while (ioctl(s->fd, VIDIOCSYNC, &gb_frame) < 0 &&
+ while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
(errno == EAGAIN || errno == EINTR));
- ptr = video_buf + gb_buffers.offsets[gb_frame];
- memcpy(buf, ptr, h->packet_size);
- return h->packet_size;
+ ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
+ memcpy(buf, ptr, s->frame_size);
+
+ /* This is now the grabbing frame */
+ s->gb_frame = s->gb_buf.frame;
+
+ return s->frame_size;
}
-/* note: we support only one picture read at a time */
-static int video_read(URLContext *h, UINT8 *buf, int size)
+static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
- VideoData *s = h->priv_data;
- INT64 curtime;
+ VideoData *s = s1->priv_data;
+ INT64 curtime, delay;
+ struct timespec ts;
+ INT64 per_frame = (INT64_C(1000000) * FRAME_RATE_BASE) / s->frame_rate;
- if (size != h->packet_size)
- return -EINVAL;
+ /* Calculate the time of the next frame */
+ s->time_frame += per_frame;
/* wait based on the frame rate */
- s->time_frame += (int)(1000000 / s->rate);
- do {
- curtime = gettime();
- } while (curtime < s->time_frame);
+ for(;;) {
+ curtime = av_gettime();
+ delay = s->time_frame - curtime;
+ if (delay <= 0) {
+ if (delay < -per_frame) {
+ /* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
+ s->time_frame += per_frame;
+ }
+ break;
+ }
+ ts.tv_sec = delay / 1000000;
+ ts.tv_nsec = (delay % 1000000) * 1000;
+ nanosleep(&ts, NULL);
+ }
+
+ if (av_new_packet(pkt, s->frame_size) < 0)
+ return -EIO;
+
+ pkt->pts = curtime & ((1LL << 48) - 1);
/* read one frame */
- if (s->use_mmap) {
- return v4l_mm_read_picture(h, buf);
+ if (s->aiw_enabled) {
+ return aiw_read_picture(s, pkt->data);
+ } else if (s->use_mmap) {
+ return v4l_mm_read_picture(s, pkt->data);
} else {
- if (read(s->fd, buf, size) != size)
+ if (read(s->fd, pkt->data, pkt->size) != pkt->size)
return -EIO;
- return h->packet_size;
+ return s->frame_size;
}
}
-static int video_get_format(URLContext *h, URLFormat *f)
+static int grab_read_close(AVFormatContext *s1)
{
- VideoData *s = h->priv_data;
+ VideoData *s = s1->priv_data;
- f->width = s->width;
- f->height = s->height;
- f->frame_rate = (int)(s->rate * FRAME_RATE_BASE);
- strcpy(f->format_name, "rawvideo");
+ if (s->aiw_enabled)
+ aiw_close(s);
- switch(s->frame_format) {
- case VIDEO_PALETTE_YUV420P:
- f->pix_fmt = PIX_FMT_YUV420P;
- break;
- case VIDEO_PALETTE_YUV422:
- f->pix_fmt = PIX_FMT_YUV422;
- break;
- case VIDEO_PALETTE_RGB24:
- f->pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
- break;
- default:
- abort();
- }
+ if (s->use_mmap)
+ munmap(s->video_buf, s->gb_buffers.size);
+
+ /* mute audio. we must force it because the BTTV driver does not
+ return its state correctly */
+ s->audio_saved.flags |= VIDEO_AUDIO_MUTE;
+ ioctl(s->fd, VIDIOCSAUDIO, &s->audio_saved);
+
+ close(s->fd);
return 0;
}
-/* URI syntax: 'video:width,height,rate'
- */
-static int video_open(URLContext *h, const char *uri, int flags)
+static AVInputFormat video_grab_device_format = {
+ "video_grab_device",
+ "video grab",
+ sizeof(VideoData),
+ NULL,
+ grab_read_header,
+ grab_read_packet,
+ grab_read_close,
+ .flags = AVFMT_NOFILE,
+};
+
+/* All in Wonder specific stuff */
+/* XXX: remove and merge in libavcodec/imgconvert.c */
+
+static int aiw_init(VideoData *s)
{
- VideoData *s;
- const char *p;
int width, height;
- int ret;
- float rate;
-
- /* extract parameters */
- p = uri;
- strstart(p, "video:", &p);
- width = strtol(p, (char **)&p, 0);
- if (width <= 0)
- return -EINVAL;
- if (*p == ',')
- p++;
- height = strtol(p, (char **)&p, 0);
- if (height <= 0)
- return -EINVAL;
- if (*p == ',')
- p++;
- rate = strtod(p, (char **)&p);
- if (rate <= 0)
- return -EINVAL;
-
- s = malloc(sizeof(VideoData));
- if (!s)
- return -ENOMEM;
- h->priv_data = s;
- h->is_streamed = 1;
- s->width = width;
- s->height = height;
- s->rate = rate;
- ret = v4l_init(h);
- if (ret)
- free(s);
- return ret;
+
+ width = s->width;
+ height = s->height;
+
+ if ((width == s->video_cap.maxwidth && height == s->video_cap.maxheight) ||
+ (width == s->video_cap.maxwidth && height == s->video_cap.maxheight*2) ||
+ (width == s->video_cap.maxwidth/2 && height == s->video_cap.maxheight)) {
+
+ s->deint=0;
+ s->halfw=0;
+ if (height == s->video_cap.maxheight*2) s->deint=1;
+ if (width == s->video_cap.maxwidth/2) s->halfw=1;
+ } else {
+ fprintf(stderr,"\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
+ fprintf(stderr," %dx%d %dx%d %dx%d\n\n",
+ s->video_cap.maxwidth,s->video_cap.maxheight,
+ s->video_cap.maxwidth,s->video_cap.maxheight*2,
+ s->video_cap.maxwidth/2,s->video_cap.maxheight);
+ goto fail;
+ }
+
+ if (s->halfw == 0) {
+ s->src_mem = av_malloc(s->width*2);
+ } else {
+ s->src_mem = av_malloc(s->width*4);
+ }
+ if (!s->src_mem) goto fail;
+
+ s->lum_m4_mem = av_malloc(s->width);
+ if (!s->lum_m4_mem)
+ goto fail;
+ return 0;
+ fail:
+ av_freep(&s->src_mem);
+ av_freep(&s->lum_m4_mem);
+ return -1;
}
-static int video_close(URLContext *h)
+#ifdef HAVE_MMX
+#include "../libavcodec/i386/mmx.h"
+
+#define LINE_WITH_UV \
+ movq_m2r(ptr[0],mm0); \
+ movq_m2r(ptr[8],mm1); \
+ movq_r2r(mm0, mm4); \
+ punpcklbw_r2r(mm1,mm0); \
+ punpckhbw_r2r(mm1,mm4); \
+ movq_r2r(mm0,mm5); \
+ punpcklbw_r2r(mm4,mm0); \
+ punpckhbw_r2r(mm4,mm5); \
+ movq_r2r(mm0,mm1); \
+ punpcklbw_r2r(mm5,mm1); \
+ movq_r2m(mm1,lum[0]); \
+ movq_m2r(ptr[16],mm2); \
+ movq_m2r(ptr[24],mm1); \
+ movq_r2r(mm2,mm4); \
+ punpcklbw_r2r(mm1,mm2); \
+ punpckhbw_r2r(mm1,mm4); \
+ movq_r2r(mm2,mm3); \
+ punpcklbw_r2r(mm4,mm2); \
+ punpckhbw_r2r(mm4,mm3); \
+ movq_r2r(mm2,mm1); \
+ punpcklbw_r2r(mm3,mm1); \
+ movq_r2m(mm1,lum[8]); \
+ punpckhdq_r2r(mm2,mm0); \
+ punpckhdq_r2r(mm3,mm5); \
+ movq_r2m(mm0,cb[0]); \
+ movq_r2m(mm5,cr[0]);
+
+#define LINE_NO_UV \
+ movq_m2r(ptr[0],mm0);\
+ movq_m2r(ptr[8],mm1);\
+ movq_r2r(mm0, mm4);\
+ punpcklbw_r2r(mm1,mm0); \
+ punpckhbw_r2r(mm1,mm4);\
+ movq_r2r(mm0,mm5);\
+ punpcklbw_r2r(mm4,mm0);\
+ punpckhbw_r2r(mm4,mm5);\
+ movq_r2r(mm0,mm1);\
+ punpcklbw_r2r(mm5,mm1);\
+ movq_r2m(mm1,lum[0]);\
+ movq_m2r(ptr[16],mm2);\
+ movq_m2r(ptr[24],mm1);\
+ movq_r2r(mm2,mm4);\
+ punpcklbw_r2r(mm1,mm2);\
+ punpckhbw_r2r(mm1,mm4);\
+ movq_r2r(mm2,mm3);\
+ punpcklbw_r2r(mm4,mm2);\
+ punpckhbw_r2r(mm4,mm3);\
+ movq_r2r(mm2,mm1);\
+ punpcklbw_r2r(mm3,mm1);\
+ movq_r2m(mm1,lum[8]);
+
+#define LINE_WITHUV_AVG \
+ movq_m2r(ptr[0], mm0);\
+ movq_m2r(ptr[8], mm1);\
+ movq_r2r(mm0, mm4);\
+ punpcklbw_r2r(mm1,mm0);\
+ punpckhbw_r2r(mm1,mm4);\
+ movq_r2r(mm0,mm5);\
+ punpcklbw_r2r(mm4,mm0);\
+ punpckhbw_r2r(mm4,mm5);\
+ movq_r2r(mm0,mm1);\
+ movq_r2r(mm5,mm2);\
+ punpcklbw_r2r(mm7,mm1);\
+ punpcklbw_r2r(mm7,mm2);\
+ paddw_r2r(mm6,mm1);\
+ paddw_r2r(mm2,mm1);\
+ psraw_i2r(1,mm1);\
+ packuswb_r2r(mm7,mm1);\
+ movd_r2m(mm1,lum[0]);\
+ movq_m2r(ptr[16],mm2);\
+ movq_m2r(ptr[24],mm1);\
+ movq_r2r(mm2,mm4);\
+ punpcklbw_r2r(mm1,mm2);\
+ punpckhbw_r2r(mm1,mm4);\
+ movq_r2r(mm2,mm3);\
+ punpcklbw_r2r(mm4,mm2);\
+ punpckhbw_r2r(mm4,mm3);\
+ movq_r2r(mm2,mm1);\
+ movq_r2r(mm3,mm4);\
+ punpcklbw_r2r(mm7,mm1);\
+ punpcklbw_r2r(mm7,mm4);\
+ paddw_r2r(mm6,mm1);\
+ paddw_r2r(mm4,mm1);\
+ psraw_i2r(1,mm1);\
+ packuswb_r2r(mm7,mm1);\
+ movd_r2m(mm1,lum[4]);\
+ punpckhbw_r2r(mm7,mm0);\
+ punpckhbw_r2r(mm7,mm2);\
+ paddw_r2r(mm6,mm0);\
+ paddw_r2r(mm2,mm0);\
+ psraw_i2r(1,mm0);\
+ packuswb_r2r(mm7,mm0);\
+ punpckhbw_r2r(mm7,mm5);\
+ punpckhbw_r2r(mm7,mm3);\
+ paddw_r2r(mm6,mm5);\
+ paddw_r2r(mm3,mm5);\
+ psraw_i2r(1,mm5);\
+ packuswb_r2r(mm7,mm5);\
+ movd_r2m(mm0,cb[0]);\
+ movd_r2m(mm5,cr[0]);
+
+#define LINE_NOUV_AVG \
+ movq_m2r(ptr[0],mm0);\
+ movq_m2r(ptr[8],mm1);\
+ pand_r2r(mm5,mm0);\
+ pand_r2r(mm5,mm1);\
+ pmaddwd_r2r(mm6,mm0);\
+ pmaddwd_r2r(mm6,mm1);\
+ packssdw_r2r(mm1,mm0);\
+ paddw_r2r(mm6,mm0);\
+ psraw_i2r(1,mm0);\
+ movq_m2r(ptr[16],mm2);\
+ movq_m2r(ptr[24],mm3);\
+ pand_r2r(mm5,mm2);\
+ pand_r2r(mm5,mm3);\
+ pmaddwd_r2r(mm6,mm2);\
+ pmaddwd_r2r(mm6,mm3);\
+ packssdw_r2r(mm3,mm2);\
+ paddw_r2r(mm6,mm2);\
+ psraw_i2r(1,mm2);\
+ packuswb_r2r(mm2,mm0);\
+ movq_r2m(mm0,lum[0]);
+
+#define DEINT_LINE_LUM(ptroff) \
+ movd_m2r(lum_m4[(ptroff)],mm0);\
+ movd_m2r(lum_m3[(ptroff)],mm1);\
+ movd_m2r(lum_m2[(ptroff)],mm2);\
+ movd_m2r(lum_m1[(ptroff)],mm3);\
+ movd_m2r(lum[(ptroff)],mm4);\
+ punpcklbw_r2r(mm7,mm0);\
+ movd_r2m(mm2,lum_m4[(ptroff)]);\
+ punpcklbw_r2r(mm7,mm1);\
+ punpcklbw_r2r(mm7,mm2);\
+ punpcklbw_r2r(mm7,mm3);\
+ punpcklbw_r2r(mm7,mm4);\
+ psllw_i2r(2,mm1);\
+ psllw_i2r(1,mm2);\
+ paddw_r2r(mm6,mm1);\
+ psllw_i2r(2,mm3);\
+ paddw_r2r(mm2,mm1);\
+ paddw_r2r(mm4,mm0);\
+ paddw_r2r(mm3,mm1);\
+ psubusw_r2r(mm0,mm1);\
+ psrlw_i2r(3,mm1);\
+ packuswb_r2r(mm7,mm1);\
+ movd_r2m(mm1,lum_m2[(ptroff)]);
+
+#else
+#include "../libavcodec/dsputil.h"
+
+#define LINE_WITH_UV \
+ lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
+ cb[0]=ptr[1];cb[1]=ptr[5];\
+ cr[0]=ptr[3];cr[1]=ptr[7];\
+ lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
+ cb[2]=ptr[9];cb[3]=ptr[13];\
+ cr[2]=ptr[11];cr[3]=ptr[15];\
+ lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
+ cb[4]=ptr[17];cb[5]=ptr[21];\
+ cr[4]=ptr[19];cr[5]=ptr[23];\
+ lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];\
+ cb[6]=ptr[25];cb[7]=ptr[29];\
+ cr[6]=ptr[27];cr[7]=ptr[31];
+
+#define LINE_NO_UV \
+ lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
+ lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
+ lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
+ lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];
+
+#define LINE_WITHUV_AVG \
+ sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
+ sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
+ sum=(ptr[1]+ptr[5]+1) >> 1;cb[0]=sum; \
+ sum=(ptr[3]+ptr[7]+1) >> 1;cr[0]=sum; \
+ sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
+ sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
+ sum=(ptr[9]+ptr[13]+1) >> 1;cb[1]=sum; \
+ sum=(ptr[11]+ptr[15]+1) >> 1;cr[1]=sum; \
+ sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
+ sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
+ sum=(ptr[17]+ptr[21]+1) >> 1;cb[2]=sum; \
+ sum=(ptr[19]+ptr[23]+1) >> 1;cr[2]=sum; \
+ sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
+ sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum; \
+ sum=(ptr[25]+ptr[29]+1) >> 1;cb[3]=sum; \
+ sum=(ptr[27]+ptr[31]+1) >> 1;cr[3]=sum;
+
+#define LINE_NOUV_AVG \
+ sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
+ sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
+ sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
+ sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
+ sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
+ sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
+ sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
+ sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum;
+
+#define DEINT_LINE_LUM(ptroff) \
+ sum=(-lum_m4[(ptroff)]+(lum_m3[(ptroff)]<<2)+(lum_m2[(ptroff)]<<1)+(lum_m1[(ptroff)]<<2)-lum[(ptroff)]); \
+ lum_m4[(ptroff)]=lum_m2[(ptroff)];\
+ lum_m2[(ptroff)]=cm[(sum+4)>>3];\
+ sum=(-lum_m4[(ptroff)+1]+(lum_m3[(ptroff)+1]<<2)+(lum_m2[(ptroff)+1]<<1)+(lum_m1[(ptroff)+1]<<2)-lum[(ptroff)+1]); \
+ lum_m4[(ptroff)+1]=lum_m2[(ptroff)+1];\
+ lum_m2[(ptroff)+1]=cm[(sum+4)>>3];\
+ sum=(-lum_m4[(ptroff)+2]+(lum_m3[(ptroff)+2]<<2)+(lum_m2[(ptroff)+2]<<1)+(lum_m1[(ptroff)+2]<<2)-lum[(ptroff)+2]); \
+ lum_m4[(ptroff)+2]=lum_m2[(ptroff)+2];\
+ lum_m2[(ptroff)+2]=cm[(sum+4)>>3];\
+ sum=(-lum_m4[(ptroff)+3]+(lum_m3[(ptroff)+3]<<2)+(lum_m2[(ptroff)+3]<<1)+(lum_m1[(ptroff)+3]<<2)-lum[(ptroff)+3]); \
+ lum_m4[(ptroff)+3]=lum_m2[(ptroff)+3];\
+ lum_m2[(ptroff)+3]=cm[(sum+4)>>3];
+
+#endif
+
+
+/* Read two fields separately. */
+static int aiw_read_picture(VideoData *s, uint8_t *data)
{
- VideoData *s = h->priv_data;
+ UINT8 *ptr, *lum, *cb, *cr;
+ int h;
+#ifndef HAVE_MMX
+ int sum;
+#endif
+ UINT8* src = s->src_mem;
+ UINT8 *ptrend = &src[s->width*2];
+ lum=data;
+ cb=&lum[s->width*s->height];
+ cr=&cb[(s->width*s->height)/4];
+ if (s->deint == 0 && s->halfw == 0) {
+ while (read(s->fd,src,s->width*2) < 0) {
+ usleep(100);
+ }
+ for (h = 0; h < s->height-2; h+=2) {
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
+ LINE_WITH_UV
+ }
+ read(s->fd,src,s->width*2);
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
+ LINE_NO_UV
+ }
+ read(s->fd,src,s->width*2);
+ }
+ /*
+ * Do last two lines
+ */
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
+ LINE_WITH_UV
+ }
+ read(s->fd,src,s->width*2);
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
+ LINE_NO_UV
+ }
+ /* drop second field */
+ while (read(s->fd,src,s->width*2) < 0) {
+ usleep(100);
+ }
+ for (h = 0; h < s->height - 1; h++) {
+ read(s->fd,src,s->width*2);
+ }
+ } else if (s->halfw == 1) {
+#ifdef HAVE_MMX
+ mmx_t rounder;
+ mmx_t masker;
+ rounder.uw[0]=1;
+ rounder.uw[1]=1;
+ rounder.uw[2]=1;
+ rounder.uw[3]=1;
+ masker.ub[0]=0xff;
+ masker.ub[1]=0;
+ masker.ub[2]=0xff;
+ masker.ub[3]=0;
+ masker.ub[4]=0xff;
+ masker.ub[5]=0;
+ masker.ub[6]=0xff;
+ masker.ub[7]=0;
+ pxor_r2r(mm7,mm7);
+ movq_m2r(rounder,mm6);
+#endif
+ while (read(s->fd,src,s->width*4) < 0) {
+ usleep(100);
+ }
+ ptrend = &src[s->width*4];
+ for (h = 0; h < s->height-2; h+=2) {
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
+ LINE_WITHUV_AVG
+ }
+ read(s->fd,src,s->width*4);
+#ifdef HAVE_MMX
+ movq_m2r(masker,mm5);
+#endif
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
+ LINE_NOUV_AVG
+ }
+ read(s->fd,src,s->width*4);
+ }
+ /*
+ * Do last two lines
+ */
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8, cb+=4, cr+=4) {
+ LINE_WITHUV_AVG
+ }
+ read(s->fd,src,s->width*4);
+#ifdef HAVE_MMX
+ movq_m2r(masker,mm5);
+#endif
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
+ LINE_NOUV_AVG
+ }
+ /* drop second field */
+ while (read(s->fd,src,s->width*4) < 0) {
+ usleep(100);
+ }
+ for (h = 0; h < s->height - 1; h++) {
+ read(s->fd,src,s->width*4);
+ }
+ } else {
+ UINT8 *lum_m1, *lum_m2, *lum_m3, *lum_m4;
+#ifdef HAVE_MMX
+ mmx_t rounder;
+ rounder.uw[0]=4;
+ rounder.uw[1]=4;
+ rounder.uw[2]=4;
+ rounder.uw[3]=4;
+ movq_m2r(rounder,mm6);
+ pxor_r2r(mm7,mm7);
+#else
+ UINT8 *cm = cropTbl + MAX_NEG_CROP;
+#endif
+
+ /* read two fields and deinterlace them */
+ while (read(s->fd,src,s->width*2) < 0) {
+ usleep(100);
+ }
+ for (h = 0; h < (s->height/2)-2; h+=2) {
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
+ LINE_WITH_UV
+ }
+ read(s->fd,src,s->width*2);
+ /* skip a luminance line - will be filled in later */
+ lum += s->width;
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
+ LINE_WITH_UV
+ }
+ /* skip a luminance line - will be filled in later */
+ lum += s->width;
+ read(s->fd,src,s->width*2);
+ }
+ /*
+ * Do last two lines
+ */
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
+ LINE_WITH_UV
+ }
+ /* skip a luminance line - will be filled in later */
+ lum += s->width;
+ read(s->fd,src,s->width*2);
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
+ LINE_WITH_UV
+ }
+ /*
+ *
+ * SECOND FIELD
+ *
+ */
+ lum=&data[s->width];
+ while (read(s->fd,src,s->width*2) < 0) {
+ usleep(10);
+ }
+ /* First (and last) two lines not interlaced */
+ for (h = 0; h < 2; h++) {
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
+ LINE_NO_UV
+ }
+ read(s->fd,src,s->width*2);
+ /* skip a luminance line */
+ lum += s->width;
+ }
+ lum_m1=&lum[-s->width];
+ lum_m2=&lum_m1[-s->width];
+ lum_m3=&lum_m2[-s->width];
+ memmove(s->lum_m4_mem,&lum_m3[-s->width],s->width);
+ for (; h < (s->height/2)-1; h++) {
+ lum_m4=s->lum_m4_mem;
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16,lum_m1+=16,lum_m2+=16,lum_m3+=16,lum_m4+=16) {
+ LINE_NO_UV
+
+ DEINT_LINE_LUM(0)
+ DEINT_LINE_LUM(4)
+ DEINT_LINE_LUM(8)
+ DEINT_LINE_LUM(12)
+ }
+ read(s->fd,src,s->width*2);
+ /* skip a luminance line */
+ lum += s->width;
+ lum_m1 += s->width;
+ lum_m2 += s->width;
+ lum_m3 += s->width;
+ // lum_m4 += s->width;
+ }
+ /*
+ * Do last line
+ */
+ lum_m4=s->lum_m4_mem;
+ for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, lum_m1+=16, lum_m2+=16, lum_m3+=16, lum_m4+=16) {
+ LINE_NO_UV
+
+ DEINT_LINE_LUM(0)
+ DEINT_LINE_LUM(4)
+ DEINT_LINE_LUM(8)
+ DEINT_LINE_LUM(12)
+ }
+ }
+#ifdef HAVE_MMX
+ emms();
+#endif
+ return s->frame_size;
+}
- close(s->fd);
- free(s);
+static int aiw_close(VideoData *s)
+{
+ av_freep(&s->lum_m4_mem);
+ av_freep(&s->src_mem);
return 0;
}
-URLProtocol video_protocol = {
- "video",
- video_open,
- video_read,
- NULL,
- NULL, /* seek */
- video_close,
- video_get_format,
-};
+int video_grab_init(void)
+{
+ av_register_input_format(&video_grab_device_format);
+ return 0;
+}
projects / ffmpeg / blobdiff