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ffmpeg: check return value of avio_closep for progress report 

avio_closep is not guaranteed to succeed, and its return value can
contain information regarding failure of preceding writes and silent
loss of data (man 2 close, man fclose). Users should know when the
progress was not successfully logged, and so a diagnostic is printed
here.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2016-01-04 19:33:50 -08:00
parent da3c3c446c
commit a956840cbc
1 changed files with 4 additions and 1 deletions
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ffmpeg.c
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@ -1501,6 +1501,7 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
static int64_t last_time = -1;
static int qp_histogram[52];
int hours, mins, secs, us;
int ret;
float t;
if (!print_stats && !is_last_report && !progress_avio)
@ -1667,7 +1668,9 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
avio_flush(progress_avio);
av_bprint_finalize(&buf_script, NULL);
if (is_last_report) {
avio_closep(&progress_avio);
if ((ret = avio_closep(&progress_avio)) < 0)
av_log(NULL, AV_LOG_ERROR,
"Error closing progress log, loss of information possible: %s\n", av_err2str(ret));
}
}