851 lines
28 KiB
C
851 lines
28 KiB
C
/*
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* Linux video grab interface
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* Copyright (c) 2000,2001 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avformat.h"
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#define _LINUX_TIME_H 1
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#include <linux/videodev.h>
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#include <time.h>
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typedef struct {
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int fd;
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int frame_format; /* see VIDEO_PALETTE_xxx */
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int use_mmap;
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int width, height;
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int frame_rate;
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int frame_rate_base;
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int64_t time_frame;
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int frame_size;
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struct video_capability video_cap;
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struct video_audio audio_saved;
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uint8_t *video_buf;
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struct video_mbuf gb_buffers;
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struct video_mmap gb_buf;
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int gb_frame;
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/* ATI All In Wonder specific stuff */
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/* XXX: remove and merge in libavcodec/imgconvert.c */
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int aiw_enabled;
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int deint;
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int halfw;
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uint8_t *src_mem;
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uint8_t *lum_m4_mem;
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} VideoData;
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static int aiw_init(VideoData *s);
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static int aiw_read_picture(VideoData *s, uint8_t *data);
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static int aiw_close(VideoData *s);
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static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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{
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VideoData *s = s1->priv_data;
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AVStream *st;
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int width, height;
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int video_fd, frame_size;
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int ret, frame_rate, frame_rate_base;
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int desired_palette, desired_depth;
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struct video_tuner tuner;
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struct video_audio audio;
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struct video_picture pict;
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const char *video_device;
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int j;
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if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
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av_log(s1, AV_LOG_ERROR, "Bad capture size (%dx%d) or wrong time base (%d)\n",
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ap->width, ap->height, ap->time_base.den);
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return -1;
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}
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width = ap->width;
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height = ap->height;
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frame_rate = ap->time_base.den;
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frame_rate_base = ap->time_base.num;
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if((unsigned)width > 32767 || (unsigned)height > 32767) {
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av_log(s1, AV_LOG_ERROR, "Capture size is out of range: %dx%d\n",
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width, height);
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return -1;
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}
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st = av_new_stream(s1, 0);
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if (!st)
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return -ENOMEM;
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av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
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s->width = width;
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s->height = height;
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s->frame_rate = frame_rate;
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s->frame_rate_base = frame_rate_base;
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video_device = ap->device;
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if (!video_device)
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video_device = "/dev/video";
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video_fd = open(video_device, O_RDWR);
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if (video_fd < 0) {
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perror(video_device);
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goto fail;
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}
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if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
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perror("VIDIOCGCAP");
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goto fail;
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}
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if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
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av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not handle capture\n");
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goto fail;
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}
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desired_palette = -1;
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desired_depth = -1;
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if (ap->pix_fmt == PIX_FMT_YUV420P) {
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desired_palette = VIDEO_PALETTE_YUV420P;
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desired_depth = 12;
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} else if (ap->pix_fmt == PIX_FMT_YUV422) {
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desired_palette = VIDEO_PALETTE_YUV422;
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desired_depth = 16;
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} else if (ap->pix_fmt == PIX_FMT_BGR24) {
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desired_palette = VIDEO_PALETTE_RGB24;
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desired_depth = 24;
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}
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/* set tv standard */
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if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
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if (!strcasecmp(ap->standard, "pal"))
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tuner.mode = VIDEO_MODE_PAL;
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else if (!strcasecmp(ap->standard, "secam"))
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tuner.mode = VIDEO_MODE_SECAM;
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else
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tuner.mode = VIDEO_MODE_NTSC;
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ioctl(video_fd, VIDIOCSTUNER, &tuner);
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}
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/* unmute audio */
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audio.audio = 0;
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ioctl(video_fd, VIDIOCGAUDIO, &audio);
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memcpy(&s->audio_saved, &audio, sizeof(audio));
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audio.flags &= ~VIDEO_AUDIO_MUTE;
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ioctl(video_fd, VIDIOCSAUDIO, &audio);
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ioctl(video_fd, VIDIOCGPICT, &pict);
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#if 0
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printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
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pict.colour,
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pict.hue,
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pict.brightness,
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pict.contrast,
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pict.whiteness);
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#endif
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/* try to choose a suitable video format */
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pict.palette = desired_palette;
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pict.depth= desired_depth;
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if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
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pict.palette=VIDEO_PALETTE_YUV420P;
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pict.depth=12;
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ret = ioctl(video_fd, VIDIOCSPICT, &pict);
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if (ret < 0) {
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pict.palette=VIDEO_PALETTE_YUV422;
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pict.depth=16;
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ret = ioctl(video_fd, VIDIOCSPICT, &pict);
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if (ret < 0) {
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pict.palette=VIDEO_PALETTE_RGB24;
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pict.depth=24;
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ret = ioctl(video_fd, VIDIOCSPICT, &pict);
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if (ret < 0)
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goto fail1;
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}
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}
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}
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ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
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if (ret < 0) {
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/* try to use read based access */
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struct video_window win;
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int val;
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win.x = 0;
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win.y = 0;
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win.width = width;
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win.height = height;
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win.chromakey = -1;
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win.flags = 0;
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ioctl(video_fd, VIDIOCSWIN, &win);
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s->frame_format = pict.palette;
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val = 1;
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ioctl(video_fd, VIDIOCCAPTURE, &val);
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s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
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s->use_mmap = 0;
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/* ATI All In Wonder automatic activation */
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if (!strcmp(s->video_cap.name, "Km")) {
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if (aiw_init(s) < 0)
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goto fail;
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s->aiw_enabled = 1;
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/* force 420P format because convertion from YUV422 to YUV420P
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is done in this driver (ugly) */
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s->frame_format = VIDEO_PALETTE_YUV420P;
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}
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} else {
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s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
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if ((unsigned char*)-1 == s->video_buf) {
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perror("mmap");
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goto fail;
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}
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s->gb_frame = 0;
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s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
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/* start to grab the first frame */
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s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
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s->gb_buf.height = height;
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s->gb_buf.width = width;
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s->gb_buf.format = pict.palette;
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ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
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if (ret < 0) {
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if (errno != EAGAIN) {
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fail1:
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av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not support suitable format\n");
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} else {
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av_log(s1, AV_LOG_ERROR,"Fatal: grab device does not receive any video signal\n");
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}
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goto fail;
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}
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for (j = 1; j < s->gb_buffers.frames; j++) {
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s->gb_buf.frame = j;
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ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
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}
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s->frame_format = s->gb_buf.format;
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s->use_mmap = 1;
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}
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switch(s->frame_format) {
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case VIDEO_PALETTE_YUV420P:
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frame_size = (width * height * 3) / 2;
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st->codec->pix_fmt = PIX_FMT_YUV420P;
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break;
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case VIDEO_PALETTE_YUV422:
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frame_size = width * height * 2;
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st->codec->pix_fmt = PIX_FMT_YUV422;
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break;
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case VIDEO_PALETTE_RGB24:
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frame_size = width * height * 3;
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st->codec->pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
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break;
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default:
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goto fail;
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}
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s->fd = video_fd;
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s->frame_size = frame_size;
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st->codec->codec_type = CODEC_TYPE_VIDEO;
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st->codec->codec_id = CODEC_ID_RAWVIDEO;
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st->codec->width = width;
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st->codec->height = height;
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st->codec->time_base.den = frame_rate;
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st->codec->time_base.num = frame_rate_base;
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st->codec->bit_rate = frame_size * 1/av_q2d(st->codec->time_base) * 8;
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return 0;
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fail:
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if (video_fd >= 0)
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close(video_fd);
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av_free(st);
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return AVERROR_IO;
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}
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static int v4l_mm_read_picture(VideoData *s, uint8_t *buf)
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{
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uint8_t *ptr;
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while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
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(errno == EAGAIN || errno == EINTR));
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ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
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memcpy(buf, ptr, s->frame_size);
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/* Setup to capture the next frame */
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s->gb_buf.frame = s->gb_frame;
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if (ioctl(s->fd, VIDIOCMCAPTURE, &s->gb_buf) < 0) {
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if (errno == EAGAIN)
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av_log(NULL, AV_LOG_ERROR, "Cannot Sync\n");
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else
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perror("VIDIOCMCAPTURE");
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return AVERROR_IO;
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}
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/* This is now the grabbing frame */
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s->gb_frame = (s->gb_frame + 1) % s->gb_buffers.frames;
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return s->frame_size;
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}
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static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
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{
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VideoData *s = s1->priv_data;
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int64_t curtime, delay;
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struct timespec ts;
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/* Calculate the time of the next frame */
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s->time_frame += int64_t_C(1000000);
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/* wait based on the frame rate */
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for(;;) {
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curtime = av_gettime();
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delay = s->time_frame * s->frame_rate_base / s->frame_rate - curtime;
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if (delay <= 0) {
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if (delay < int64_t_C(-1000000) * s->frame_rate_base / s->frame_rate) {
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/* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
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s->time_frame += int64_t_C(1000000);
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}
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break;
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}
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ts.tv_sec = delay / 1000000;
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ts.tv_nsec = (delay % 1000000) * 1000;
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nanosleep(&ts, NULL);
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}
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if (av_new_packet(pkt, s->frame_size) < 0)
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return AVERROR_IO;
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pkt->pts = curtime;
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/* read one frame */
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if (s->aiw_enabled) {
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return aiw_read_picture(s, pkt->data);
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} else if (s->use_mmap) {
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return v4l_mm_read_picture(s, pkt->data);
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} else {
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if (read(s->fd, pkt->data, pkt->size) != pkt->size)
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return AVERROR_IO;
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return s->frame_size;
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}
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}
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static int grab_read_close(AVFormatContext *s1)
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{
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VideoData *s = s1->priv_data;
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if (s->aiw_enabled)
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aiw_close(s);
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if (s->use_mmap)
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munmap(s->video_buf, s->gb_buffers.size);
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/* mute audio. we must force it because the BTTV driver does not
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return its state correctly */
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s->audio_saved.flags |= VIDEO_AUDIO_MUTE;
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ioctl(s->fd, VIDIOCSAUDIO, &s->audio_saved);
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close(s->fd);
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return 0;
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}
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AVInputFormat video_grab_device_demuxer = {
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"video4linux",
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"video grab",
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sizeof(VideoData),
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NULL,
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grab_read_header,
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grab_read_packet,
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grab_read_close,
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.flags = AVFMT_NOFILE,
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};
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/* All in Wonder specific stuff */
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/* XXX: remove and merge in libavcodec/imgconvert.c */
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static int aiw_init(VideoData *s)
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{
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int width, height;
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width = s->width;
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height = s->height;
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if ((width == s->video_cap.maxwidth && height == s->video_cap.maxheight) ||
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(width == s->video_cap.maxwidth && height == s->video_cap.maxheight*2) ||
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(width == s->video_cap.maxwidth/2 && height == s->video_cap.maxheight)) {
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s->deint=0;
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s->halfw=0;
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if (height == s->video_cap.maxheight*2) s->deint=1;
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if (width == s->video_cap.maxwidth/2) s->halfw=1;
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} else {
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av_log(NULL, AV_LOG_ERROR, "\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
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av_log(NULL, AV_LOG_ERROR, " %dx%d %dx%d %dx%d\n\n",
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s->video_cap.maxwidth,s->video_cap.maxheight,
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s->video_cap.maxwidth,s->video_cap.maxheight*2,
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s->video_cap.maxwidth/2,s->video_cap.maxheight);
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goto fail;
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}
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if (s->halfw == 0) {
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s->src_mem = av_malloc(s->width*2);
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} else {
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s->src_mem = av_malloc(s->width*4);
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}
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if (!s->src_mem) goto fail;
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s->lum_m4_mem = av_malloc(s->width);
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if (!s->lum_m4_mem)
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goto fail;
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return 0;
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fail:
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av_freep(&s->src_mem);
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av_freep(&s->lum_m4_mem);
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return -1;
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}
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#ifdef HAVE_MMX
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#include "libavcodec/i386/mmx.h"
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#define LINE_WITH_UV \
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movq_m2r(ptr[0],mm0); \
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movq_m2r(ptr[8],mm1); \
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movq_r2r(mm0, mm4); \
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punpcklbw_r2r(mm1,mm0); \
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punpckhbw_r2r(mm1,mm4); \
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movq_r2r(mm0,mm5); \
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punpcklbw_r2r(mm4,mm0); \
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punpckhbw_r2r(mm4,mm5); \
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movq_r2r(mm0,mm1); \
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punpcklbw_r2r(mm5,mm1); \
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movq_r2m(mm1,lum[0]); \
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movq_m2r(ptr[16],mm2); \
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movq_m2r(ptr[24],mm1); \
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movq_r2r(mm2,mm4); \
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punpcklbw_r2r(mm1,mm2); \
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punpckhbw_r2r(mm1,mm4); \
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movq_r2r(mm2,mm3); \
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punpcklbw_r2r(mm4,mm2); \
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punpckhbw_r2r(mm4,mm3); \
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movq_r2r(mm2,mm1); \
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punpcklbw_r2r(mm3,mm1); \
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movq_r2m(mm1,lum[8]); \
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punpckhdq_r2r(mm2,mm0); \
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punpckhdq_r2r(mm3,mm5); \
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movq_r2m(mm0,cb[0]); \
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movq_r2m(mm5,cr[0]);
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#define LINE_NO_UV \
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movq_m2r(ptr[0],mm0);\
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movq_m2r(ptr[8],mm1);\
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movq_r2r(mm0, mm4);\
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punpcklbw_r2r(mm1,mm0); \
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punpckhbw_r2r(mm1,mm4);\
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movq_r2r(mm0,mm5);\
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punpcklbw_r2r(mm4,mm0);\
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punpckhbw_r2r(mm4,mm5);\
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movq_r2r(mm0,mm1);\
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punpcklbw_r2r(mm5,mm1);\
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movq_r2m(mm1,lum[0]);\
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movq_m2r(ptr[16],mm2);\
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movq_m2r(ptr[24],mm1);\
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movq_r2r(mm2,mm4);\
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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;
|
|
}
|