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fall back mmap() call using MAP_PRIVATE for working on no-mmu systems

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patch by Mike Frysinger   vapier.adi _at_ gmail.com

Originally committed as revision 7380 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Mike Frysinger 2006-12-28 00:32:06 +00:00 committed by Aurelien Jacobs
parent 62ade082bb
commit d037d797a4
1 changed files with 5 additions and 2 deletions
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3
libavformat/grab.c
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@ -218,10 +218,13 @@ static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
} }
} else { } else {
s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0); s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_SHARED,video_fd,0);
if ((unsigned char*)-1 == s->video_buf) {
s->video_buf = mmap(0,s->gb_buffers.size,PROT_READ|PROT_WRITE,MAP_PRIVATE,video_fd,0);
if ((unsigned char*)-1 == s->video_buf) { if ((unsigned char*)-1 == s->video_buf) {
perror("mmap"); perror("mmap");
goto fail; goto fail;
} }
}
s->gb_frame = 0; s->gb_frame = 0;
s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base; s->time_frame = av_gettime() * s->frame_rate / s->frame_rate_base;