* Linux video grab interface
* Copyright (c) 2000,2001 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "avdevice.h"
+
+#if FF_API_V4L
+
#undef __STRICT_ANSI__ //workaround due to broken kernel headers
#include "config.h"
#include "libavutil/rational.h"
-#include "libavcore/imgutils.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
#include "libavformat/avformat.h"
#include "libavcodec/dsputil.h"
#include <unistd.h>
#define _LINUX_TIME_H 1
#include <linux/videodev.h>
#include <time.h>
-#include <strings.h>
typedef struct {
+ AVClass *class;
int fd;
int frame_format; /* see VIDEO_PALETTE_xxx */
int use_mmap;
struct video_mbuf gb_buffers;
struct video_mmap gb_buf;
int gb_frame;
+ int standard;
} VideoData;
static const struct {
int j;
int vformat_num = FF_ARRAY_ELEMS(video_formats);
+ av_log(s1, AV_LOG_WARNING, "V4L input device is deprecated and will be removed in the next release.");
+
if (ap->time_base.den <= 0) {
av_log(s1, AV_LOG_ERROR, "Wrong time base (%d)\n", ap->time_base.den);
return -1;
s->video_win.width = ap->width;
s->video_win.height = ap->height;
- st = av_new_stream(s1, 0);
+ st = avformat_new_stream(s1, NULL);
if (!st)
return AVERROR(ENOMEM);
av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
}
/* 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;
+ if (!ioctl(video_fd, VIDIOCGTUNER, &tuner)) {
+ tuner.mode = s->standard;
ioctl(video_fd, VIDIOCSTUNER, &tuner);
}
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
+ av_dlog(s1, "v4l: colour=%d hue=%d brightness=%d constrast=%d whiteness=%d\n",
+ pict.colour, pict.hue, pict.brightness, pict.contrast, pict.whiteness);
/* try to choose a suitable video format */
pict.palette = desired_palette;
pict.depth= desired_depth;
return 0;
}
+static const AVOption options[] = {
+ { "standard", "", offsetof(VideoData, standard), AV_OPT_TYPE_INT, {.dbl = VIDEO_MODE_NTSC}, VIDEO_MODE_PAL, VIDEO_MODE_NTSC, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+ { "PAL", "", 0, AV_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_PAL}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+ { "SECAM", "", 0, AV_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+ { "NTSC", "", 0, AV_OPT_TYPE_CONST, {.dbl = VIDEO_MODE_NTSC}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
+ { NULL },
+};
+
+static const AVClass v4l_class = {
+ .class_name = "V4L indev",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
AVInputFormat ff_v4l_demuxer = {
- "video4linux",
- NULL_IF_CONFIG_SMALL("Video4Linux device grab"),
- sizeof(VideoData),
- NULL,
- grab_read_header,
- grab_read_packet,
- grab_read_close,
- .flags = AVFMT_NOFILE,
+ .name = "video4linux",
+ .long_name = NULL_IF_CONFIG_SMALL("Video4Linux device grab"),
+ .priv_data_size = sizeof(VideoData),
+ .read_header = grab_read_header,
+ .read_packet = grab_read_packet,
+ .read_close = grab_read_close,
+ .flags = AVFMT_NOFILE,
+ .priv_class = &v4l_class,
};
+#endif /* FF_API_V4L */