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fbdev: simplify logic in fbdev_read_packet() 

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
This commit is contained in:
Stefano Sabatini 2011-03-12 15:24:54 +01:00
parent df2d5b16ef
commit d46c9f83cf
1 changed files with 8 additions and 10 deletions
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18
libavdevice/fbdev.c
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@ -189,22 +189,20 @@ static int fbdev_read_packet(AVFormatContext *avctx, AVPacket *pkt)
fbdev->time_frame = av_gettime();
/* wait based on the frame rate */
while (1) {
curtime = av_gettime();
delay = fbdev->time_frame - curtime;
av_dlog(avctx,
"time_frame:%"PRId64" curtime:%"PRId64" delay:%"PRId64"\n",
fbdev->time_frame, curtime, delay);
if (delay <= 0) {
fbdev->time_frame += INT64_C(1000000) * av_q2d(fbdev->time_base);
break;
}
curtime = av_gettime();
delay = fbdev->time_frame - curtime;
av_dlog(avctx,
"time_frame:%"PRId64" curtime:%"PRId64" delay:%"PRId64"\n",
fbdev->time_frame, curtime, delay);
if (delay > 0) {
if (avctx->flags & AVFMT_FLAG_NONBLOCK)
return AVERROR(EAGAIN);
ts.tv_sec = delay / 1000000;
ts.tv_nsec = (delay % 1000000) * 1000;
while (nanosleep(&ts, &ts) < 0 && errno == EINTR);
}
/* compute the time of the next frame */
fbdev->time_frame += INT64_C(1000000) * av_q2d(fbdev->time_base);
if ((ret = av_new_packet(pkt, fbdev->frame_size)) < 0)
return ret;