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bktr: factorize returning error codes.

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This will be useful in the following commit.
This commit is contained in:
Anton Khirnov 2011-05-26 20:14:53 +02:00
parent 86f868771b
commit 3577416212
1 changed files with 15 additions and 7 deletions
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22
libavdevice/bktr.c
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@ -249,9 +249,12 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
int width, height;
int frame_rate;
int frame_rate_base;
int ret = 0;
if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
return -1;
if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
ret = AVERROR(EINVAL);
goto out;
}
width = ap->width;
height = ap->height;
@ -259,8 +262,10 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
frame_rate_base = ap->time_base.num;
st = av_new_stream(s1, 0);
if (!st)
return AVERROR(ENOMEM);
if (!st) {
ret = AVERROR(ENOMEM);
goto out;
}
av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in use */
s->width = width;
@ -289,13 +294,16 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
#endif
if (bktr_init(s1->filename, width, height, s->standard,
&(s->video_fd), &(s->tuner_fd), -1, 0.0) < 0)
return AVERROR(EIO);
&(s->video_fd), &(s->tuner_fd), -1, 0.0) < 0) {
ret = AVERROR(EIO);
goto out;
}
nsignals = 0;
last_frame_time = 0;
return 0;
out:
return ret;
}
static int grab_read_close(AVFormatContext *s1)