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bktr: add video_size private option.

This commit is contained in:
Anton Khirnov 2011-05-24 07:43:01 +02:00
parent 3577416212
commit 33e0369672
1 changed files with 17 additions and 3 deletions
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20
libavdevice/bktr.c
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@ -27,6 +27,7 @@
#include "libavformat/avformat.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.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>
@ -57,6 +58,7 @@ typedef struct {
int frame_rate_base;
uint64_t per_frame;
int standard;
char *video_size; /**< String describing video size, set by a private option. */
} VideoData;
@ -251,13 +253,21 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
int frame_rate_base;
int ret = 0;
if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
if (ap->time_base.den <= 0) {
ret = AVERROR(EINVAL);
goto out;
}
width = ap->width;
height = ap->height;
if ((ret = av_parse_video_size(&width, &height, s->video_size)) < 0) {
av_log(s1, AV_LOG_ERROR, "Couldn't parse video size.\n");
goto out;
}
#if FF_API_FORMAT_PARAMETERS
if (ap->width > 0)
width = ap->width;
if (ap->height > 0)
height = ap->height;
#endif
frame_rate = ap->time_base.den;
frame_rate_base = ap->time_base.num;
@ -303,6 +313,7 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
last_frame_time = 0;
out:
av_freep(&s->video_size);
return ret;
}
@ -324,6 +335,8 @@ static int grab_read_close(AVFormatContext *s1)
return 0;
}
#define OFFSET(x) offsetof(VideoData, x)
#define DEC AV_OPT_FLAG_DECODING_PARAM
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" },
@ -332,6 +345,7 @@ static const AVOption options[] = {
{ "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" },
{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
{ NULL },
};