int frame_rate;
INT64 time_frame;
int frame_size;
+ struct video_capability video_cap;
+ struct video_audio audio_saved;
+ UINT8 *video_buf;
+ struct video_mbuf gb_buffers;
+ struct video_mmap gb_buf;
+ int gb_frame;
+
+ /* ATI All In Wonder specific stuff */
+ /* XXX: remove and merge in libavcodec/imgconvert.c */
+ int aiw_enabled;
+ int deint;
+ int halfw;
+ UINT8 *src_mem;
+ UINT8 *lum_m4_mem;
} VideoData;
-const char *v4l_device = "/dev/video";
-
-/* XXX: move all that to the context */
+static int aiw_init(VideoData *s);
+static int aiw_read_picture(VideoData *s, uint8_t *data);
+static int aiw_close(VideoData *s);
-static struct video_capability video_cap;
-static UINT8 *video_buf;
-static struct video_mbuf gb_buffers;
-static struct video_mmap gb_buf;
-static struct video_audio audio, audio_saved;
-static int gb_frame = 0;
+const char *v4l_device = "/dev/video";
static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
{
int video_fd, frame_size;
int ret, frame_rate;
int desired_palette;
+ struct video_audio audio;
if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
return -1;
goto fail;
}
- if (ioctl(video_fd,VIDIOCGCAP,&video_cap) < 0) {
+ if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
perror("VIDIOCGCAP");
goto fail;
}
- if (!(video_cap.type & VID_TYPE_CAPTURE)) {
+ if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
fprintf(stderr, "Fatal: grab device does not handle capture\n");
goto fail;
}
}
/* unmute audio */
+ audio.audio = 0;
ioctl(video_fd, VIDIOCGAUDIO, &audio);
- memcpy(&audio_saved, &audio, sizeof(audio));
+ memcpy(&s->audio_saved, &audio, sizeof(audio));
audio.flags &= ~VIDEO_AUDIO_MUTE;
ioctl(video_fd, VIDIOCSAUDIO, &audio);
- ret = ioctl(video_fd,VIDIOCGMBUF,&gb_buffers);
+ ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
if (ret < 0) {
/* try to use read based access */
struct video_window win;
s->time_frame = av_gettime();
s->use_mmap = 0;
+
+ /* ATI All In Wonder automatic activation */
+ if (!strcmp(s->video_cap.name, "Km")) {
+ if (aiw_init(s) < 0)
+ goto fail;
+ s->aiw_enabled = 1;
+ /* force 420P format because convertion from YUV422 to YUV420P
+ is done in this driver (ugly) */
+ s->frame_format = VIDEO_PALETTE_YUV420P;
+ }
} else {
- video_buf = mmap(0,gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
- if ((unsigned char*)-1 == video_buf) {
+ s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
+ if ((unsigned char*)-1 == s->video_buf) {
perror("mmap");
goto fail;
}
- gb_frame = 0;
+ s->gb_frame = 0;
s->time_frame = av_gettime();
/* start to grab the first frame */
- gb_buf.frame = gb_frame % gb_buffers.frames;
- gb_buf.height = height;
- gb_buf.width = width;
- gb_buf.format = desired_palette;
+ 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, &gb_buf)) < 0) {
- gb_buf.format = VIDEO_PALETTE_YUV420P;
+ if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf)) < 0) {
+ s->gb_buf.format = VIDEO_PALETTE_YUV420P;
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &gb_buf);
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
if (ret < 0 && errno != EAGAIN) {
/* try YUV422 */
- gb_buf.format = VIDEO_PALETTE_YUV422;
+ s->gb_buf.format = VIDEO_PALETTE_YUV422;
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &gb_buf);
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
if (ret < 0 && errno != EAGAIN) {
/* try RGB24 */
- gb_buf.format = VIDEO_PALETTE_RGB24;
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &gb_buf);
+ s->gb_buf.format = VIDEO_PALETTE_RGB24;
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
}
}
}
}
goto fail;
}
- s->frame_format = gb_buf.format;
+ s->frame_format = s->gb_buf.format;
s->use_mmap = 1;
}
UINT8 *ptr;
/* Setup to capture the next frame */
- gb_buf.frame = (gb_frame + 1) % gb_buffers.frames;
- if (ioctl(s->fd, VIDIOCMCAPTURE, &gb_buf) < 0) {
+ 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
return -EIO;
}
- while (ioctl(s->fd, VIDIOCSYNC, &gb_frame) < 0 &&
+ while (ioctl(s->fd, VIDIOCSYNC, &s->gb_frame) < 0 &&
(errno == EAGAIN || errno == EINTR));
- ptr = video_buf + gb_buffers.offsets[gb_frame];
+ ptr = s->video_buf + s->gb_buffers.offsets[s->gb_frame];
memcpy(buf, ptr, s->frame_size);
/* This is now the grabbing frame */
- gb_frame = gb_buf.frame;
+ s->gb_frame = s->gb_buf.frame;
return s->frame_size;
}
pkt->flags |= PKT_FLAG_DROPPED_FRAME;
/* read one frame */
- if (s->use_mmap) {
+ 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)
{
VideoData *s = s1->priv_data;
+ if (s->aiw_enabled)
+ aiw_close(s);
+
if (s->use_mmap)
- munmap(video_buf, gb_buffers.size);
+ munmap(s->video_buf, s->gb_buffers.size);
- /* restore audio settings */
- ioctl(s->fd, VIDIOCSAUDIO, &audio_saved);
+ /* 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;
.flags = AVFMT_NOFILE,
};
-/*
- * Done below so we can register the aiw grabber
- * /
-int video_grab_init(void)
-{
- av_register_input_format(&video_grab_device_format);
- return 0;
-}
-*/
-
-typedef struct {
- int fd;
- int frame_format; /* see VIDEO_PALETTE_xxx */
- int width, height;
- int frame_rate;
- INT64 time_frame;
- int frame_size;
- int deint;
- int halfw;
- UINT8 *src_mem;
- UINT8 *lum_m4_mem;
-} AIWVideoData;
+/* All in Wonder specific stuff */
+/* XXX: remove and merge in libavcodec/imgconvert.c */
-static int aiw_grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
+static int aiw_init(VideoData *s)
{
- AIWVideoData *s = s1->priv_data;
- AVStream *st;
int width, height;
- int video_fd, frame_size;
- int ret, frame_rate;
- int desired_palette;
- 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;
-
- st = av_new_stream(s1, 0);
- if (!st)
- return -ENOMEM;
-
- s->width = width;
- s->height = height;
- s->frame_rate = frame_rate;
+ width = s->width;
+ height = s->height;
- video_fd = open(v4l_device, O_RDONLY | O_NONBLOCK);
- if (video_fd < 0) {
- perror(v4l_device);
- goto fail;
- }
-
- if (ioctl(video_fd,VIDIOCGCAP,&video_cap) < 0) {
- perror("VIDIOCGCAP");
- goto fail;
- }
-
- if (!(video_cap.type & VID_TYPE_CAPTURE)) {
- fprintf(stderr, "Fatal: grab device does not handle capture\n");
- goto fail;
- }
-
- desired_palette = -1;
- if (st->codec.pix_fmt == PIX_FMT_YUV420P) {
- desired_palette = VIDEO_PALETTE_YUV420P;
- } else if (st->codec.pix_fmt == PIX_FMT_YUV422) {
- desired_palette = VIDEO_PALETTE_YUV422;
- } else if (st->codec.pix_fmt == PIX_FMT_BGR24) {
- desired_palette = VIDEO_PALETTE_RGB24;
- }
-
- /* unmute audio */
-
- ret = ioctl(video_fd,VIDIOCGMBUF,&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=VIDEO_PALETTE_YUV422;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0) {
- fprintf(stderr,"Could Not Find YUY2 capture window.\n");
- goto fail;
- }
- if ((width == video_cap.maxwidth && height == video_cap.maxheight) ||
- (width == video_cap.maxwidth && height == video_cap.maxheight*2) ||
- (width == video_cap.maxwidth/2 && height == video_cap.maxheight)) {
-
- s->deint=0;
- s->halfw=0;
- if (height == video_cap.maxheight*2) s->deint=1;
- if (width == 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",
- video_cap.maxwidth,video_cap.maxheight,
- video_cap.maxwidth,video_cap.maxheight*2,
- video_cap.maxwidth/2,video_cap.maxheight);
- goto fail;
- }
-
- s->frame_format = pict.palette;
-
- val = 1;
- ioctl(video_fd, VIDIOCCAPTURE, &val);
-
- s->time_frame = av_gettime();
+ 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,"mmap-based capture will not work with this grab.\n");
+ 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;
}
- frame_size = (width * height * 3) / 2;
- st->codec.pix_fmt = PIX_FMT_YUV420P;
- 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;
-
if (s->halfw == 0) {
s->src_mem = av_malloc(s->width*2);
} else {
if (!s->src_mem) goto fail;
s->lum_m4_mem = av_malloc(s->width);
- if (!s->lum_m4_mem) {
- av_free(s->src_mem);
+ if (!s->lum_m4_mem)
goto fail;
- }
-
return 0;
fail:
- if (video_fd >= 0)
- close(video_fd);
- av_free(st);
- return -EIO;
+ av_freep(&s->src_mem);
+ av_freep(&s->lum_m4_mem);
+ return -1;
}
-//#ifdef HAVE_MMX
-//#undef HAVE_MMX
-//#endif
-
#ifdef HAVE_MMX
#include "../libavcodec/i386/mmx.h"
#endif
-static int aiw_grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
+/* Read two fields separately. */
+static int aiw_read_picture(VideoData *s, uint8_t *data)
{
- 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;
+ UINT8 *ptr, *lum, *cb, *cr;
+ int h;
#ifndef HAVE_MMX
- int sum;
+ 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
- */
+ UINT8* src = s->src_mem;
+ UINT8 *ptrend = &src[s->width*2];
+ lum=data;
+ cb=&lum[s->width*s->height];
+ cr=&cb[(s->width*s->height)/4];
+ if (s->deint == 0 && s->halfw == 0) {
+ while (read(s->fd,src,s->width*2) < 0) {
+ usleep(100);
+ }
+ for (h = 0; h < s->height-2; h+=2) {
for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16, cb+=8, cr+=8) {
LINE_WITH_UV
- }
+ }
read(s->fd,src,s->width*2);
for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=16) {
LINE_NO_UV
- }
- /* 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*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*4);
+ 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
- movq_m2r(masker,mm5);
+ 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
- for (ptr = &src[0]; ptr < ptrend; ptr+=32, lum+=8) {
- LINE_NOUV_AVG
- }
- read(s->fd,src,s->width*4);
- }
-/*
- * Do last two lines
- */
+ 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
- }
- /* 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;
+ }
+ 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);
+ 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;
+ 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
- */
+ /* 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
- }
-/* skip a luminance line - will be filled in later */
- lum += s->width;
+ }
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
+ 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;
- }
-/*
+ }
+ 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
+ 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();
+ emms();
#endif
- }
return s->frame_size;
}
-static int aiw_grab_read_close(AVFormatContext *s1)
+static int aiw_close(VideoData *s)
{
- AIWVideoData *s = s1->priv_data;
-
- close(s->fd);
- av_free(s->lum_m4_mem);
- av_free(s->src_mem);
-
+ av_freep(&s->lum_m4_mem);
+ av_freep(&s->src_mem);
return 0;
}
-static 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;
}
projects / platform / upstream / libav.git / commitdiff