Package: zvbi
Version: 0.2.33-1
Severity: normal
Tags: patch
Directing output to file triggers errors and fails to write the closed captions
to the file:
$ zvbi-atsc-cc -m -v -c -n CBS-HD >> out.txt
zvbi-atsc-cc: Opening dvb/adapter0.
zvbi-atsc-cc: Signal detected.
zvbi-atsc-cc: Opened dvb/adapter0, tuned to 627.000 MHz and started
capture thread.
zvbi-atsc-cc: Capture thread ready.
zvbi-atsc-cc: TS transmission error.
zvbi-atsc-cc: TS transmission error.
With the -C switch, I simply get no output; the file is created, but remains
empty:
$ zvbi-atsc-cc -m -v -C ~/out.txt -n CBS-HD
It appears that the problem with the output file not receiving any content is
caused by file buffering. Basically the content is written to a
buffer, but the buffer is not flushed. After adding a fflush() function call,
the caption content showed up:
--- zvbi-0.2.33/contrib/atsc-cc.c 2008-09-03 10:57:22.000000000 -0700
+++ atsc-cc.c 2010-11-10 20:28:07.000000000 -0800
@@ -1845,6 +1845,7 @@
cr->ucs_buffer,
cr->ucs_buffer_length,
/* repl_char */ '?');
+ fflush(fp);
}
}
This fixes the bug.
Cheers,
Dave
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (1000, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32.11 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=ISO-8859-1) (ignored:
LC_ALL set to en_US)
Shell: /bin/sh linked to /bin/dash
Versions of packages zvbi depends on:
ii libc6 2.11.2-7 Embedded GNU C Library: Shared lib
ii libzvbi0 0.2.33-1 Vertical Blanking Interval decoder
zvbi recommends no packages.
zvbi suggests no packages.
-- no debconf information
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