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bktr: add a private option for video standard.

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This commit is contained in:
Anton Khirnov 2011-05-23 20:45:36 +02:00
parent bffd4dd1d3
commit e199eb44fd
1 changed files with 27 additions and 5 deletions
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32
libavdevice/bktr.c
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@ -25,6 +25,8 @@
*/
#include "libavformat/avformat.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#if HAVE_DEV_BKTR_IOCTL_METEOR_H && HAVE_DEV_BKTR_IOCTL_BT848_H
# include <dev/bktr/ioctl_meteor.h>
# include <dev/bktr/ioctl_bt848.h>
@ -47,12 +49,14 @@
#include <strings.h>
typedef struct {
AVClass *class;
int video_fd;
int tuner_fd;
int width, height;
int frame_rate;
int frame_rate_base;
uint64_t per_frame;
int standard;
} VideoData;
@ -245,7 +249,6 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
int width, height;
int frame_rate;
int frame_rate_base;
int format = -1;
if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
return -1;
@ -276,14 +279,14 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
if (ap->standard) {
if (!strcasecmp(ap->standard, "pal"))
format = PAL;
s->standard = PAL;
else if (!strcasecmp(ap->standard, "secam"))
format = SECAM;
s->standard = SECAM;
else if (!strcasecmp(ap->standard, "ntsc"))
format = NTSC;
s->standard = NTSC;
}
if (bktr_init(s1->filename, width, height, format,
if (bktr_init(s1->filename, width, height, s->standard,
&(s->video_fd), &(s->tuner_fd), -1, 0.0) < 0)
return AVERROR(EIO);
@ -311,6 +314,24 @@ static int grab_read_close(AVFormatContext *s1)
return 0;
}
static const AVOption options[] = {
{ "standard", "", offsetof(VideoData, standard), FF_OPT_TYPE_INT, {.dbl = VIDEO_FORMAT}, PAL, NTSCJ, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ "PAL", "", 0, FF_OPT_TYPE_CONST, {.dbl = PAL}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ "NTSC", "", 0, FF_OPT_TYPE_CONST, {.dbl = NTSC}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ "SECAM", "", 0, FF_OPT_TYPE_CONST, {.dbl = SECAM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ "PALN", "", 0, FF_OPT_TYPE_CONST, {.dbl = PALN}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ "PALM", "", 0, FF_OPT_TYPE_CONST, {.dbl = PALM}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ "NTSCJ", "", 0, FF_OPT_TYPE_CONST, {.dbl = NTSCJ}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "standard" },
{ NULL },
};
static const AVClass bktr_class = {
.class_name = "BKTR grab interface",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVInputFormat ff_bktr_demuxer = {
"bktr",
NULL_IF_CONFIG_SMALL("video grab"),
@ -320,4 +341,5 @@ AVInputFormat ff_bktr_demuxer = {
grab_read_packet,
grab_read_close,
.flags = AVFMT_NOFILE,
.priv_class = &bktr_class,
};