+++ /dev/null
-/*
- * Linux video grab interface
- * Copyright (c) 2000,2001 Fabrice Bellard.
- *
- * 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 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
- * Lesser General Public License for more details.
- *
- * 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 <unistd.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/time.h>
-#define _LINUX_TIME_H 1
-#include <linux/videodev.h>
-#include <time.h>
-
-typedef struct {
- int fd;
- int frame_format; /* see VIDEO_PALETTE_xxx */
- int use_mmap;
- int width, height;
- int frame_rate;
- int frame_rate_base;
- int64_t time_frame;
- int frame_size;
- struct video_capability video_cap;
- struct video_audio audio_saved;
- uint8_t *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_t *src_mem;
- uint8_t *lum_m4_mem;
-} VideoData;
-
-static int aiw_init(VideoData *s);
-static int aiw_read_picture(VideoData *s, uint8_t *data);
-static int aiw_close(VideoData *s);
-
-static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
-{
- VideoData *s = s1->priv_data;
- AVStream *st;
- int width, height;
- int video_fd, frame_size;
- int ret, frame_rate, frame_rate_base;
- int desired_palette;
- struct video_tuner tuner;
- struct video_audio audio;
- const char *video_device;
-
- if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
- return -1;
-
- width = ap->width;
- height = ap->height;
- frame_rate = ap->frame_rate;
- frame_rate_base = ap->frame_rate_base;
-
- st = av_new_stream(s1, 0);
- if (!st)
- return -ENOMEM;
-
- s->width = width;
- s->height = height;
- s->frame_rate = frame_rate;
- s->frame_rate_base = frame_rate_base;
-
- video_device = ap->device;
- if (!video_device)
- video_device = "/dev/video";
- video_fd = open(video_device, O_RDWR);
- if (video_fd < 0) {
- perror(video_device);
- goto fail;
- }
-
- if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
- perror("VIDIOCGCAP");
- goto fail;
- }
-
- 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;
- }
-
- /* set tv standard */
- if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
- if (!strcasecmp(ap->standard, "pal"))
- tuner.mode = VIDEO_MODE_PAL;
- else if (!strcasecmp(ap->standard, "secam"))
- tuner.mode = VIDEO_MODE_SECAM;
- else
- tuner.mode = VIDEO_MODE_NTSC;
- ioctl(video_fd, VIDIOCSTUNER, &tuner);
- }
-
- /* 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,&s->gb_buffers);
- if (ret < 0) {
- /* try to use read based access */
- struct video_window win;
- struct video_picture pict;
- int val;
-
- win.x = 0;
- win.y = 0;
- win.width = width;
- win.height = height;
- win.chromakey = -1;
- win.flags = 0;
-
- ioctl(video_fd, VIDIOCSWIN, &win);
-
- ioctl(video_fd, VIDIOCGPICT, &pict);
-#if 0
- printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
- pict.colour,
- pict.hue,
- pict.brightness,
- pict.contrast,
- pict.whiteness);
-#endif
- /* try to choose a suitable video format */
- 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_YUV422;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0) {
- pict.palette=VIDEO_PALETTE_RGB24;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0)
- goto fail1;
- }
- }
- }
-
- s->frame_format = pict.palette;
-
- val = 1;
- ioctl(video_fd, VIDIOCCAPTURE, &val);
-
- 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 {
- 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;
- }
- s->gb_frame = 0;
- s->time_frame = av_gettime();
-
- /* start to grab the first frame */
- 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, &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) {
- fail1:
- fprintf(stderr, "Fatal: grab device does not support suitable format\n");
- } else {
- fprintf(stderr,"Fatal: grab device does not receive any video signal\n");
- }
- goto fail;
- }
- 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;
- 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;
- st->codec.frame_rate_base = frame_rate_base;
-
- av_set_pts_info(s1, 48, 1, 1000000); /* 48 bits pts in us */
-
- return 0;
- fail:
- if (video_fd >= 0)
- close(video_fd);
- av_free(st);
- return -EIO;
-}
-
-static int v4l_mm_read_picture(VideoData *s, uint8_t *buf)
-{
- uint8_t *ptr;
-
- /* 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;
- }
-
- while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
- (errno == EAGAIN || errno == EINTR));
-
- 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;
-}
-
-static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
-{
- VideoData *s = s1->priv_data;
- int64_t curtime, delay;
- struct timespec ts;
- int64_t per_frame = (int64_t_C(1000000) * s->frame_rate_base) / s->frame_rate;
-
- /* Calculate the time of the next frame */
- s->time_frame += per_frame;
-
- /* wait based on the frame rate */
- 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->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, pkt->data, pkt->size) != pkt->size)
- return -EIO;
- return s->frame_size;
- }
-}
-
-static int grab_read_close(AVFormatContext *s1)
-{
- VideoData *s = s1->priv_data;
-
- if (s->aiw_enabled)
- aiw_close(s);
-
- 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;
-}
-
-static AVInputFormat video_grab_device_format = {
- "video4linux",
- "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)
-{
- int width, height;
-
- 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;
-}
-
-#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)
-{
- uint8_t *ptr, *lum, *cb, *cr;
- int h;
-#ifndef HAVE_MMX
- int sum;
-#endif
- uint8_t* src = s->src_mem;
- uint8_t *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_t *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_t *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;
-}
-
-static int aiw_close(VideoData *s)
-{
- av_freep(&s->lum_m4_mem);
- av_freep(&s->src_mem);
- return 0;
-}
-
-int video_grab_init(void)
-{
- av_register_input_format(&video_grab_device_format);
- return 0;
-}
projects / synfig.git / blobdiff