mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
new video grab device for ATI All-In-Wonder cards based on the GATOS km driver patch by (Fred <foohoo at shaw dot ca>)
Originally committed as revision 1053 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
parent
fc48cbad5b
commit
3f9bff71b5
650
libav/grab.c
650
libav/grab.c
@ -323,8 +323,658 @@ AVInputFormat video_grab_device_format = {
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.flags = AVFMT_NOFILE,
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};
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/*
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* Done below so we can register the aiw grabber
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* /
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int video_grab_init(void)
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{
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av_register_input_format(&video_grab_device_format);
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return 0;
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}
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*/
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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 width, height;
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int frame_rate;
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INT64 time_frame;
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int frame_size;
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int deint;
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int halfw;
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UINT8 *src_mem;
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UINT8 *lum_m4_mem;
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} AIWVideoData;
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static int aiw_grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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{
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AIWVideoData *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;
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int desired_palette;
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if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
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return -1;
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width = ap->width;
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height = ap->height;
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frame_rate = ap->frame_rate;
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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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s->width = width;
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s->height = height;
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s->frame_rate = frame_rate;
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video_fd = open(v4l_device, O_RDONLY | O_NONBLOCK);
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if (video_fd < 0) {
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perror(v4l_device);
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goto fail;
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}
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if (ioctl(video_fd,VIDIOCGCAP,&video_cap) < 0) {
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perror("VIDIOCGCAP");
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goto fail;
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}
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if (!(video_cap.type & VID_TYPE_CAPTURE)) {
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fprintf(stderr, "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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if (st->codec.pix_fmt == PIX_FMT_YUV420P) {
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desired_palette = VIDEO_PALETTE_YUV420P;
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} else if (st->codec.pix_fmt == PIX_FMT_YUV422) {
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desired_palette = VIDEO_PALETTE_YUV422;
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} else if (st->codec.pix_fmt == PIX_FMT_BGR24) {
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desired_palette = VIDEO_PALETTE_RGB24;
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}
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/* unmute audio */
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ret = ioctl(video_fd,VIDIOCGMBUF,&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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struct video_picture pict;
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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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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=VIDEO_PALETTE_YUV422;
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ret = ioctl(video_fd, VIDIOCSPICT, &pict);
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if (ret < 0) {
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fprintf(stderr,"Could Not Find YUY2 capture window.\n");
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goto fail;
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}
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if ((width == video_cap.maxwidth && height == video_cap.maxheight) ||
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(width == video_cap.maxwidth && height == video_cap.maxheight*2) ||
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(width == video_cap.maxwidth/2 && height == video_cap.maxheight)) {
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s->deint=0;
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s->halfw=0;
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if (height == video_cap.maxheight*2) s->deint=1;
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if (width == video_cap.maxwidth/2) s->halfw=1;
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} else {
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fprintf(stderr,"\nIncorrect Grab Size Supplied - Supported Sizes Are:\n");
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fprintf(stderr," %dx%d %dx%d %dx%d\n\n",
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video_cap.maxwidth,video_cap.maxheight,
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video_cap.maxwidth,video_cap.maxheight*2,
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video_cap.maxwidth/2,video_cap.maxheight);
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goto fail;
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}
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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();
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} else {
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fprintf(stderr,"mmap-based capture will not work with this grab.\n");
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goto fail;
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}
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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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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.frame_rate = frame_rate;
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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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av_free(s->src_mem);
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goto fail;
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}
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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 -EIO;
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}
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//#ifdef HAVE_MMX
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//#undef HAVE_MMX
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//#endif
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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);\
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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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#define LINE_WITHUV_AVG \
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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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movq_r2r(mm5,mm2);\
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punpcklbw_r2r(mm7,mm1);\
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punpcklbw_r2r(mm7,mm2);\
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paddw_r2r(mm6,mm1);\
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paddw_r2r(mm2,mm1);\
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psraw_i2r(1,mm1);\
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packuswb_r2r(mm7,mm1);\
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movd_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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movq_r2r(mm3,mm4);\
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punpcklbw_r2r(mm7,mm1);\
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punpcklbw_r2r(mm7,mm4);\
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paddw_r2r(mm6,mm1);\
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paddw_r2r(mm4,mm1);\
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psraw_i2r(1,mm1);\
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packuswb_r2r(mm7,mm1);\
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movd_r2m(mm1,lum[4]);\
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punpckhbw_r2r(mm7,mm0);\
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punpckhbw_r2r(mm7,mm2);\
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paddw_r2r(mm6,mm0);\
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paddw_r2r(mm2,mm0);\
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psraw_i2r(1,mm0);\
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packuswb_r2r(mm7,mm0);\
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punpckhbw_r2r(mm7,mm5);\
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punpckhbw_r2r(mm7,mm3);\
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paddw_r2r(mm6,mm5);\
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paddw_r2r(mm3,mm5);\
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psraw_i2r(1,mm5);\
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packuswb_r2r(mm7,mm5);\
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movd_r2m(mm0,cb[0]);\
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movd_r2m(mm5,cr[0]);
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#define LINE_NOUV_AVG \
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movq_m2r(ptr[0],mm0);\
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movq_m2r(ptr[8],mm1);\
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pand_r2r(mm5,mm0);\
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pand_r2r(mm5,mm1);\
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pmaddwd_r2r(mm6,mm0);\
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pmaddwd_r2r(mm6,mm1);\
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packssdw_r2r(mm1,mm0);\
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paddw_r2r(mm6,mm0);\
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psraw_i2r(1,mm0);\
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movq_m2r(ptr[16],mm2);\
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movq_m2r(ptr[24],mm3);\
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pand_r2r(mm5,mm2);\
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pand_r2r(mm5,mm3);\
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pmaddwd_r2r(mm6,mm2);\
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pmaddwd_r2r(mm6,mm3);\
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packssdw_r2r(mm3,mm2);\
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paddw_r2r(mm6,mm2);\
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psraw_i2r(1,mm2);\
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packuswb_r2r(mm2,mm0);\
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movq_r2m(mm0,lum[0]);
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#define DEINT_LINE_LUM(ptroff) \
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movd_m2r(lum_m4[(ptroff)],mm0);\
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movd_m2r(lum_m3[(ptroff)],mm1);\
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movd_m2r(lum_m2[(ptroff)],mm2);\
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movd_m2r(lum_m1[(ptroff)],mm3);\
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movd_m2r(lum[(ptroff)],mm4);\
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punpcklbw_r2r(mm7,mm0);\
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movd_r2m(mm2,lum_m4[(ptroff)]);\
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punpcklbw_r2r(mm7,mm1);\
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punpcklbw_r2r(mm7,mm2);\
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punpcklbw_r2r(mm7,mm3);\
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punpcklbw_r2r(mm7,mm4);\
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psllw_i2r(2,mm1);\
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psllw_i2r(1,mm2);\
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paddw_r2r(mm6,mm1);\
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psllw_i2r(2,mm3);\
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paddw_r2r(mm2,mm1);\
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paddw_r2r(mm4,mm0);\
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paddw_r2r(mm3,mm1);\
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psubusw_r2r(mm0,mm1);\
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psrlw_i2r(3,mm1);\
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packuswb_r2r(mm7,mm1);\
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movd_r2m(mm1,lum_m2[(ptroff)]);
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#else
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#include "../libavcodec/dsputil.h"
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#define LINE_WITH_UV \
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lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
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cb[0]=ptr[1];cb[1]=ptr[5];\
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cr[0]=ptr[3];cr[1]=ptr[7];\
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lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
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cb[2]=ptr[9];cb[3]=ptr[13];\
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cr[2]=ptr[11];cr[3]=ptr[15];\
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lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
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cb[4]=ptr[17];cb[5]=ptr[21];\
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cr[4]=ptr[19];cr[5]=ptr[23];\
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lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];\
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cb[6]=ptr[25];cb[7]=ptr[29];\
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cr[6]=ptr[27];cr[7]=ptr[31];
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|
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#define LINE_NO_UV \
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lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
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lum[4]=ptr[8];lum[5]=ptr[10];lum[6]=ptr[12];lum[7]=ptr[14];\
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lum[8]=ptr[16];lum[9]=ptr[18];lum[10]=ptr[20];lum[11]=ptr[22];\
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lum[12]=ptr[24];lum[13]=ptr[26];lum[14]=ptr[28];lum[15]=ptr[30];
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|
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#define LINE_WITHUV_AVG \
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sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
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sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
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sum=(ptr[1]+ptr[5]+1) >> 1;cb[0]=sum; \
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sum=(ptr[3]+ptr[7]+1) >> 1;cr[0]=sum; \
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sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
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sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
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sum=(ptr[9]+ptr[13]+1) >> 1;cb[1]=sum; \
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sum=(ptr[11]+ptr[15]+1) >> 1;cr[1]=sum; \
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sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
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sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
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sum=(ptr[17]+ptr[21]+1) >> 1;cb[2]=sum; \
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sum=(ptr[19]+ptr[23]+1) >> 1;cr[2]=sum; \
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sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
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sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum; \
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sum=(ptr[25]+ptr[29]+1) >> 1;cb[3]=sum; \
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sum=(ptr[27]+ptr[31]+1) >> 1;cr[3]=sum;
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#define LINE_NOUV_AVG \
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sum=(ptr[0]+ptr[2]+1) >> 1;lum[0]=sum; \
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sum=(ptr[4]+ptr[6]+1) >> 1;lum[1]=sum; \
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sum=(ptr[8]+ptr[10]+1) >> 1;lum[2]=sum; \
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sum=(ptr[12]+ptr[14]+1) >> 1;lum[3]=sum; \
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sum=(ptr[16]+ptr[18]+1) >> 1;lum[4]=sum; \
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sum=(ptr[20]+ptr[22]+1) >> 1;lum[5]=sum; \
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sum=(ptr[24]+ptr[26]+1) >> 1;lum[6]=sum; \
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sum=(ptr[28]+ptr[30]+1) >> 1;lum[7]=sum;
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|
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#define DEINT_LINE_LUM(ptroff) \
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sum=(-lum_m4[(ptroff)]+(lum_m3[(ptroff)]<<2)+(lum_m2[(ptroff)]<<1)+(lum_m1[(ptroff)]<<2)-lum[(ptroff)]); \
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lum_m4[(ptroff)]=lum_m2[(ptroff)];\
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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
|
||||
|
||||
|
||||
static int aiw_grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
|
||||
{
|
||||
AIWVideoData *s = s1->priv_data;
|
||||
INT64 curtime, delay;
|
||||
struct timespec ts;
|
||||
int first;
|
||||
INT64 per_frame = (INT64_C(1000000) * FRAME_RATE_BASE) / s->frame_rate;
|
||||
int dropped = 0;
|
||||
|
||||
/* Calculate the time of the next frame */
|
||||
s->time_frame += per_frame;
|
||||
|
||||
/* wait based on the frame rate */
|
||||
for(first = 1;; first = 0) {
|
||||
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)); */
|
||||
dropped = 1;
|
||||
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;
|
||||
|
||||
if (dropped)
|
||||
pkt->flags |= PKT_FLAG_DROPPED_FRAME;
|
||||
|
||||
/* read fields */
|
||||
{
|
||||
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=&pkt->data[0];
|
||||
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=&pkt->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_grab_read_close(AVFormatContext *s1)
|
||||
{
|
||||
AIWVideoData *s = s1->priv_data;
|
||||
|
||||
close(s->fd);
|
||||
av_free(s->lum_m4_mem);
|
||||
av_free(s->src_mem);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
AVInputFormat aiw_grab_device_format = {
|
||||
"aiw_grab_device",
|
||||
"All-In-Wonder (km read-based) video grab",
|
||||
sizeof(AIWVideoData),
|
||||
NULL,
|
||||
aiw_grab_read_header,
|
||||
aiw_grab_read_packet,
|
||||
aiw_grab_read_close,
|
||||
.flags = AVFMT_NOFILE,
|
||||
};
|
||||
|
||||
int video_grab_init(void)
|
||||
{
|
||||
av_register_input_format(&video_grab_device_format);
|
||||
av_register_input_format(&aiw_grab_device_format);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user