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o Add a simple "block until data is available or timeout is reached"

Browse source 
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
This commit is contained in:
Mario Sergio Fujikawa Ferreira 2003-02-05 20:31:02 +00:00
parent 3932042f89
commit 4a34b202c0
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=74906
6 changed files with 54 additions and 3 deletions
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2
multimedia/ffmpeg-devel/Makefile
View file

@ -7,7 +7,7 @@
PORTNAME= ffmpeg PORTNAME= ffmpeg
PORTVERSION= 0.4.6 PORTVERSION= 0.4.6
PORTREVISION= 1 PORTREVISION= 2
CATEGORIES= multimedia audio net CATEGORIES= multimedia audio net
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE} MASTER_SITES= ${MASTER_SITE_SOURCEFORGE}
MASTER_SITE_SUBDIR= ffmpeg MASTER_SITE_SUBDIR= ffmpeg

17
multimedia/ffmpeg-devel/files/patch-libavformat::audio.c Normal file
View file

@ -0,0 +1,17 @@
--- libavformat/audio.c.orig Wed Feb 5 20:49:08 2003
+++ libavformat/audio.c Wed Feb 5 20:50:36 2003
@@ -243,6 +243,14 @@
if (av_new_packet(pkt, s->frame_size) < 0)
return -EIO;
for(;;) {
+ struct timeval tv;
+ fd_set fds;
+ tv.tv_sec = 0;
+ tv.tv_usec = 30 * 1000; /* 30 msecs -- a bit shorter than 1 frame at 30fps */
+ FD_ZERO(&fds);
+ FD_SET(s->fd, &fds); /* This will block until data is available or we get a timeout */
+ (void) select(s->fd + 1, &fds, 0, 0, &tv);
+
ret = read(s->fd, pkt->data, pkt->size);
if (ret > 0)
break;

2
multimedia/ffmpeg/Makefile
View file

@ -7,7 +7,7 @@
PORTNAME= ffmpeg PORTNAME= ffmpeg
PORTVERSION= 0.4.6 PORTVERSION= 0.4.6
PORTREVISION= 1 PORTREVISION= 2
CATEGORIES= multimedia audio net CATEGORIES= multimedia audio net
MASTER_SITES= ${MASTER_SITE_SOURCEFORGE} MASTER_SITES= ${MASTER_SITE_SOURCEFORGE}
MASTER_SITE_SUBDIR= ffmpeg MASTER_SITE_SUBDIR= ffmpeg

17
multimedia/ffmpeg/files/patch-libavformat::audio.c Normal file
View file

@ -0,0 +1,17 @@
--- libavformat/audio.c.orig Wed Feb 5 20:49:08 2003
+++ libavformat/audio.c Wed Feb 5 20:50:36 2003
@@ -243,6 +243,14 @@
if (av_new_packet(pkt, s->frame_size) < 0)
return -EIO;
for(;;) {
+ struct timeval tv;
+ fd_set fds;
+ tv.tv_sec = 0;
+ tv.tv_usec = 30 * 1000; /* 30 msecs -- a bit shorter than 1 frame at 30fps */
+ FD_ZERO(&fds);
+ FD_SET(s->fd, &fds); /* This will block until data is available or we get a timeout */
+ (void) select(s->fd + 1, &fds, 0, 0, &tv);
+
ret = read(s->fd, pkt->data, pkt->size);
if (ret > 0)
break;

2
multimedia/ffmpeg045/Makefile
View file

@ -7,7 +7,7 @@
PORTNAME= ffmpeg PORTNAME= ffmpeg
PORTVERSION= 0.4.5 PORTVERSION= 0.4.5
PORTREVISION= 5 PORTREVISION= 6
CATEGORIES= multimedia audio net CATEGORIES= multimedia audio net
MASTER_SITES= ${MASTER_SITE_LOCAL} MASTER_SITES= ${MASTER_SITE_LOCAL}
MASTER_SITE_SUBDIR= lioux MASTER_SITE_SUBDIR= lioux

17
multimedia/ffmpeg045/files/patch-libav::audio.c Normal file
View file

@ -0,0 +1,17 @@
--- libav/audio.c.orig Wed Feb 5 20:49:08 2003
+++ libav/audio.c Wed Feb 5 20:50:36 2003
@@ -243,6 +243,14 @@
if (av_new_packet(pkt, s->frame_size) < 0)
return -EIO;
for(;;) {
+ struct timeval tv;
+ fd_set fds;
+ tv.tv_sec = 0;
+ tv.tv_usec = 30 * 1000; /* 30 msecs -- a bit shorter than 1 frame at 30fps */
+ FD_ZERO(&fds);
+ FD_SET(s->fd, &fds); /* This will block until data is available or we get a timeout */
+ (void) select(s->fd + 1, &fds, 0, 0, &tv);
+
ret = read(s->fd, pkt->data, pkt->size);
if (ret > 0)
break;