*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include <unistd.h>
int width, height;
int video_fd, frame_size;
int ret, frame_rate, frame_rate_base;
- int desired_palette;
+ int desired_palette, desired_depth;
struct video_tuner tuner;
struct video_audio audio;
+ struct video_picture pict;
const char *video_device;
int j;
- if (!ap || ap->width <= 0 || ap->height <= 0 || ap->frame_rate <= 0)
+ if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
+ av_log(s1, AV_LOG_ERROR, "Bad capture size (%dx%d) or wrong time base (%d)\n",
+ ap->width, ap->height, ap->time_base.den);
+
return -1;
-
+ }
+
width = ap->width;
height = ap->height;
- frame_rate = ap->frame_rate;
- frame_rate_base = ap->frame_rate_base;
+ frame_rate = ap->time_base.den;
+ frame_rate_base = ap->time_base.num;
+
+ if((unsigned)width > 32767 || (unsigned)height > 32767) {
+ av_log(s1, AV_LOG_ERROR, "Capture size is out of range: %dx%d\n",
+ width, height);
- if((unsigned)width > 32767 || (unsigned)height > 32767)
return -1;
-
+ }
+
st = av_new_stream(s1, 0);
if (!st)
return -ENOMEM;
- av_set_pts_info(st, 48, 1, 1000000); /* 48 bits pts in us */
+ av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
s->width = width;
s->height = height;
perror(video_device);
goto fail;
}
-
+
if (ioctl(video_fd,VIDIOCGCAP, &s->video_cap) < 0) {
perror("VIDIOCGCAP");
goto fail;
}
if (!(s->video_cap.type & VID_TYPE_CAPTURE)) {
- av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not handle capture\n");
+ av_log(s1, AV_LOG_ERROR, "Fatal: grab device does not handle capture\n");
goto fail;
}
desired_palette = -1;
- if (st->codec.pix_fmt == PIX_FMT_YUV420P) {
+ desired_depth = -1;
+ if (ap->pix_fmt == PIX_FMT_YUV420P) {
desired_palette = VIDEO_PALETTE_YUV420P;
- } else if (st->codec.pix_fmt == PIX_FMT_YUV422) {
+ desired_depth = 12;
+ } else if (ap->pix_fmt == PIX_FMT_YUV422) {
desired_palette = VIDEO_PALETTE_YUV422;
- } else if (st->codec.pix_fmt == PIX_FMT_BGR24) {
+ desired_depth = 16;
+ } else if (ap->pix_fmt == PIX_FMT_BGR24) {
desired_palette = VIDEO_PALETTE_RGB24;
- }
+ desired_depth = 24;
+ }
/* set tv standard */
if (ap->standard && !ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
- if (!strcasecmp(ap->standard, "pal"))
- tuner.mode = VIDEO_MODE_PAL;
- else if (!strcasecmp(ap->standard, "secam"))
- tuner.mode = VIDEO_MODE_SECAM;
- else
- tuner.mode = VIDEO_MODE_NTSC;
- ioctl(video_fd, VIDIOCSTUNER, &tuner);
+ if (!strcasecmp(ap->standard, "pal"))
+ tuner.mode = VIDEO_MODE_PAL;
+ else if (!strcasecmp(ap->standard, "secam"))
+ tuner.mode = VIDEO_MODE_SECAM;
+ else
+ tuner.mode = VIDEO_MODE_NTSC;
+ ioctl(video_fd, VIDIOCSTUNER, &tuner);
}
-
+
/* unmute audio */
audio.audio = 0;
ioctl(video_fd, VIDIOCGAUDIO, &audio);
audio.flags &= ~VIDEO_AUDIO_MUTE;
ioctl(video_fd, VIDIOCSAUDIO, &audio);
+ ioctl(video_fd, VIDIOCGPICT, &pict);
+#if 0
+ printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
+ pict.colour,
+ pict.hue,
+ pict.brightness,
+ pict.contrast,
+ pict.whiteness);
+#endif
+ /* try to choose a suitable video format */
+ pict.palette = desired_palette;
+ pict.depth= desired_depth;
+ if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
+ pict.palette=VIDEO_PALETTE_YUV420P;
+ pict.depth=12;
+ ret = ioctl(video_fd, VIDIOCSPICT, &pict);
+ if (ret < 0) {
+ pict.palette=VIDEO_PALETTE_YUV422;
+ pict.depth=16;
+ ret = ioctl(video_fd, VIDIOCSPICT, &pict);
+ if (ret < 0) {
+ pict.palette=VIDEO_PALETTE_RGB24;
+ pict.depth=24;
+ ret = ioctl(video_fd, VIDIOCSPICT, &pict);
+ if (ret < 0)
+ goto fail1;
+ }
+ }
+ }
+
ret = ioctl(video_fd,VIDIOCGMBUF,&s->gb_buffers);
if (ret < 0) {
/* try to use read based access */
struct video_window win;
- struct video_picture pict;
int val;
win.x = 0;
ioctl(video_fd, VIDIOCSWIN, &win);
- ioctl(video_fd, VIDIOCGPICT, &pict);
-#if 0
- printf("v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
- pict.colour,
- pict.hue,
- pict.brightness,
- pict.contrast,
- pict.whiteness);
-#endif
- /* try to choose a suitable video format */
- pict.palette = desired_palette;
- if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCSPICT, &pict)) < 0) {
- pict.palette=VIDEO_PALETTE_YUV420P;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0) {
- pict.palette=VIDEO_PALETTE_YUV422;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0) {
- pict.palette=VIDEO_PALETTE_RGB24;
- ret = ioctl(video_fd, VIDIOCSPICT, &pict);
- if (ret < 0)
- goto fail1;
- }
- }
- }
-
s->frame_format = pict.palette;
val = 1;
s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
s->use_mmap = 0;
-
+
/* ATI All In Wonder automatic activation */
if (!strcmp(s->video_cap.name, "Km")) {
if (aiw_init(s) < 0)
}
s->gb_frame = 0;
s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;
-
+
/* start to grab the first frame */
s->gb_buf.frame = s->gb_frame % s->gb_buffers.frames;
s->gb_buf.height = height;
s->gb_buf.width = width;
- s->gb_buf.format = desired_palette;
-
- if (desired_palette == -1 || (ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf)) < 0) {
- s->gb_buf.format = VIDEO_PALETTE_YUV420P;
-
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
- if (ret < 0 && errno != EAGAIN) {
- /* try YUV422 */
- s->gb_buf.format = VIDEO_PALETTE_YUV422;
-
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
- if (ret < 0 && errno != EAGAIN) {
- /* try RGB24 */
- s->gb_buf.format = VIDEO_PALETTE_RGB24;
- ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
- }
- }
- }
+ s->gb_buf.format = pict.palette;
+
+ ret = ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
if (ret < 0) {
if (errno != EAGAIN) {
fail1:
}
goto fail;
}
- for (j = 1; j < s->gb_buffers.frames; j++) {
- s->gb_buf.frame = j;
- ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
- }
+ for (j = 1; j < s->gb_buffers.frames; j++) {
+ s->gb_buf.frame = j;
+ ioctl(video_fd, VIDIOCMCAPTURE, &s->gb_buf);
+ }
s->frame_format = s->gb_buf.format;
s->use_mmap = 1;
}
switch(s->frame_format) {
case VIDEO_PALETTE_YUV420P:
frame_size = (width * height * 3) / 2;
- st->codec.pix_fmt = PIX_FMT_YUV420P;
+ st->codec->pix_fmt = PIX_FMT_YUV420P;
break;
case VIDEO_PALETTE_YUV422:
frame_size = width * height * 2;
- st->codec.pix_fmt = PIX_FMT_YUV422;
+ st->codec->pix_fmt = PIX_FMT_YUV422;
break;
case VIDEO_PALETTE_RGB24:
frame_size = width * height * 3;
- st->codec.pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
+ st->codec->pix_fmt = PIX_FMT_BGR24; /* NOTE: v4l uses BGR24, not RGB24 ! */
break;
default:
goto fail;
}
s->fd = video_fd;
s->frame_size = frame_size;
-
- st->codec.codec_type = CODEC_TYPE_VIDEO;
- st->codec.codec_id = CODEC_ID_RAWVIDEO;
- st->codec.width = width;
- st->codec.height = height;
- st->codec.frame_rate = frame_rate;
- st->codec.frame_rate_base = frame_rate_base;
+
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ st->codec->codec_id = CODEC_ID_RAWVIDEO;
+ st->codec->width = width;
+ st->codec->height = height;
+ st->codec->time_base.den = frame_rate;
+ st->codec->time_base.num = frame_rate_base;
+ st->codec->bit_rate = frame_size * 1/av_q2d(st->codec->time_base) * 8;
return 0;
fail:
s->time_frame += int64_t_C(1000000);
}
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 AVERROR_IO;
- pkt->pts = curtime & ((1LL << 48) - 1);
+ pkt->pts = curtime;
/* read one frame */
if (s->aiw_enabled) {
return 0;
}
-static AVInputFormat video_grab_device_format = {
+AVInputFormat video_grab_device_demuxer = {
"video4linux",
"video grab",
sizeof(VideoData),
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;
}
#ifdef HAVE_MMX
-#include "../libavcodec/i386/mmx.h"
+#include "libavcodec/i386/mmx.h"
#define LINE_WITH_UV \
movq_m2r(ptr[0],mm0); \
movd_r2m(mm1,lum_m2[(ptroff)]);
#else
-#include "../libavcodec/dsputil.h"
+#include "libavcodec/dsputil.h"
#define LINE_WITH_UV \
lum[0]=ptr[0];lum[1]=ptr[2];lum[2]=ptr[4];lum[3]=ptr[6];\
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;
+ 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[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;
+ 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)]); \
av_freep(&s->src_mem);
return 0;
}
-
-int video_grab_init(void)
-{
- av_register_input_format(&video_grab_device_format);
- return 0;
-}
projects / ffmpeg / blobdiff