[FFmpeg-cvslog] ffmpeg: add option stats_period
Gyan Doshi
git at videolan.org
Tue Dec 22 21:13:13 EET 2020
ffmpeg | branch: master | Gyan Doshi <ffmpeg at gyani.pro> | Mon Dec 21 14:34:49 2020 +0530| [842714b5cb4112ec6805ed228b34d711024ad9e2] | committer: Gyan Doshi
ffmpeg: add option stats_period
At present, progress stats are updated at a hardcoded interval of
half a second. For long processes, this can lead to bloated
logs and progress reports.
Users can now set a custom period using option -stats_period
Default is kept at 0.5 seconds.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=842714b5cb4112ec6805ed228b34d711024ad9e2
---
doc/ffmpeg.texi | 7 ++++++-
fftools/ffmpeg.c | 2 +-
fftools/ffmpeg.h | 1 +
fftools/ffmpeg_opt.c | 18 ++++++++++++++++++
4 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index 95d6463685..62015d7565 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -675,14 +675,19 @@ Specify the preset for matching stream(s).
Print encoding progress/statistics. It is on by default, to explicitly
disable it you need to specify @code{-nostats}.
+ at item -stats_period @var{time} (@emph{global})
+Set period at which encoding progress/statistics are updated. Default is 0.5 seconds.
+
@item -progress @var{url} (@emph{global})
Send program-friendly progress information to @var{url}.
-Progress information is written approximately every second and at the end of
+Progress information is written periodically and at the end of
the encoding process. It is made of "@var{key}=@var{value}" lines. @var{key}
consists of only alphanumeric characters. The last key of a sequence of
progress information is always "progress".
+The update period is set using @code{-stats_period}.
+
@anchor{stdin option}
@item -stdin
Enable interaction on standard input. On by default unless standard input is
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index b446d9b206..6d25f1bca9 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -1699,7 +1699,7 @@ static void print_report(int is_last_report, int64_t timer_start, int64_t cur_ti
last_time = cur_time;
return;
}
- if ((cur_time - last_time) < 500000)
+ if ((cur_time - last_time) < stats_period)
return;
last_time = cur_time;
}
diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 3b54dab7fc..8046e75026 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -614,6 +614,7 @@ extern int debug_ts;
extern int exit_on_error;
extern int abort_on_flags;
extern int print_stats;
+extern int64_t stats_period;
extern int qp_hist;
extern int stdin_interaction;
extern int frame_bits_per_raw_sample;
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 7ee034c9c9..242468fc64 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -174,6 +174,7 @@ int filter_nbthreads = 0;
int filter_complex_nbthreads = 0;
int vstats_version = 2;
int auto_conversion_filters = 1;
+int64_t stats_period = 500000;
static int intra_only = 0;
@@ -282,6 +283,21 @@ static int opt_abort_on(void *optctx, const char *opt, const char *arg)
return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
}
+static int opt_stats_period(void *optctx, const char *opt, const char *arg)
+{
+ int64_t user_stats_period = parse_time_or_die(opt, arg, 1);
+
+ if (user_stats_period <= 0) {
+ av_log(NULL, AV_LOG_ERROR, "stats_period %s must be positive.\n", arg);
+ return AVERROR(EINVAL);
+ }
+
+ stats_period = user_stats_period;
+ av_log(NULL, AV_LOG_INFO, "ffmpeg stats and -progress period set to %s.\n", arg);
+
+ return 0;
+}
+
static int opt_sameq(void *optctx, const char *opt, const char *arg)
{
av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
@@ -3557,6 +3573,8 @@ const OptionDef options[] = {
"enable automatic conversion filters globally" },
{ "stats", OPT_BOOL, { &print_stats },
"print progress report during encoding", },
+ { "stats_period", HAS_ARG | OPT_EXPERT, { .func_arg = opt_stats_period },
+ "set the period at which ffmpeg updates stats and -progress output", "time" },
{ "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
OPT_OUTPUT, { .func_arg = opt_attach },
"add an attachment to the output file", "filename" },
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