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Code Issues Releases Activity

x11grab: add framerate private option.

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This commit is contained in:
Anton Khirnov 2011-06-03 13:36:36 +02:00
parent a3b15e411d
commit ff494cbdaf
1 changed files with 14 additions and 10 deletions
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24
libavdevice/x11grab.c
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@ -71,6 +71,7 @@ struct x11_grab
int use_shm; /**< !0 when using XShm extension */
XShmSegmentInfo shminfo; /**< When using XShm, keeps track of XShm infos */
int nomouse;
char *framerate; /**< Set by a private option. */
};
/**
@ -97,6 +98,7 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
int use_shm;
char *param, *offset;
int ret = 0;
AVRational framerate;
param = av_strdup(s1->filename);
offset = strchr(param, '+');
@ -110,11 +112,17 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
av_log(s1, AV_LOG_ERROR, "Couldn't parse video size.\n");
goto out;
}
if ((ret = av_parse_video_rate(&framerate, x11grab->framerate)) < 0) {
av_log(s1, AV_LOG_ERROR, "Could not parse framerate: %s.\n", x11grab->framerate);
goto out;
}
#if FF_API_FORMAT_PARAMETERS
if (ap->width > 0)
x11grab->width = ap->width;
if (ap->height > 0)
x11grab->height = ap->height;
if (ap->time_base.num)
framerate = (AVRational){ap->time_base.den, ap->time_base.num};
#endif
av_log(s1, AV_LOG_INFO, "device: %s -> display: %s x: %d y: %d width: %d height: %d\n",
s1->filename, param, x_off, y_off, x11grab->width, x11grab->height);
@ -126,12 +134,6 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
goto out;
}
if (ap->time_base.den <= 0) {
av_log(s1, AV_LOG_ERROR, "AVParameters don't have video size and/or rate. Use -s and -r.\n");
ret = AVERROR(EINVAL);
goto out;
}
st = av_new_stream(s1, 0);
if (!st) {
ret = AVERROR(ENOMEM);
@ -240,8 +242,8 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
x11grab->frame_size = x11grab->width * x11grab->height * image->bits_per_pixel/8;
x11grab->dpy = dpy;
x11grab->time_base = ap->time_base;
x11grab->time_frame = av_gettime() / av_q2d(ap->time_base);
x11grab->time_base = (AVRational){framerate.den, framerate.num};
x11grab->time_frame = av_gettime() / av_q2d(x11grab->time_base);
x11grab->x_off = x_off;
x11grab->y_off = y_off;
x11grab->image = image;
@ -252,11 +254,12 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
st->codec->width = x11grab->width;
st->codec->height = x11grab->height;
st->codec->pix_fmt = input_pixfmt;
st->codec->time_base = ap->time_base;
st->codec->bit_rate = x11grab->frame_size * 1/av_q2d(ap->time_base) * 8;
st->codec->time_base = x11grab->time_base;
st->codec->bit_rate = x11grab->frame_size * 1/av_q2d(x11grab->time_base) * 8;
out:
av_freep(&x11grab->video_size);
av_freep(&x11grab->framerate);
return ret;
}
@ -468,6 +471,7 @@ x11grab_read_close(AVFormatContext *s1)
#define DEC AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "vga"}, 0, 0, DEC },
{ "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
{ NULL },
};