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4a34b202c0
wait mechanism to audio encoding routines. This avoids busy wait blocking which needlessly consumes CPU o Bump PORTREVISION Submitted by: Steve O'Hara-Smith <steve@sohara.org> Obtained from: ffmpeg CVS repository
17 lines
626 B
C
17 lines
626 B
C
--- libav/audio.c.orig Wed Feb 5 20:49:08 2003
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+++ libav/audio.c Wed Feb 5 20:50:36 2003
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@@ -243,6 +243,14 @@
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if (av_new_packet(pkt, s->frame_size) < 0)
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return -EIO;
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for(;;) {
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+ struct timeval tv;
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+ fd_set fds;
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+ tv.tv_sec = 0;
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+ tv.tv_usec = 30 * 1000; /* 30 msecs -- a bit shorter than 1 frame at 30fps */
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+ FD_ZERO(&fds);
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+ FD_SET(s->fd, &fds); /* This will block until data is available or we get a timeout */
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+ (void) select(s->fd + 1, &fds, 0, 0, &tv);
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+
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ret = read(s->fd, pkt->data, pkt->size);
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if (ret > 0)
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break;
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