The value is useful to get a raw estimate of the expected
encoding/decoding time.
Also extend option documentation.
---
doc/ffmpeg.texi | 6 ++++++
ffmpeg.c | 9 +++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index a38a32e..9ea48bb 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -999,6 +999,12 @@ it will usually display as 0 if not supported.
@item -benchmark_all (@emph{global})
Show benchmarking information during the encode.
Shows CPU time used in various steps (audio/video encode/decode).
+
+This option shows the following information for each processing step,
+in this order: the user process time (in microseconds), the elapsed
+relative time (in microseconds), the processing step type, and the
+relative stream.
+
@item -timelimit @var{duration} (@emph{global})
Exit after ffmpeg has been running for @var{duration} seconds.
@item -dump (@emph{global})
diff --git a/ffmpeg.c b/ffmpeg.c
index 86a0960..24536d1 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -129,7 +129,9 @@ static int nb_frames_dup = 0;
static int nb_frames_drop = 0;
static int64_t decode_error_stat[2];
-static int current_time;
+static int64_t current_time;
+static int64_t current_time_rel;
+
AVIOContext *progress_avio = NULL;
static uint8_t *subtitle_out;
@@ -608,6 +610,7 @@ static void update_benchmark(const char *fmt, ...)
{
if (do_benchmark_all) {
int64_t t = getutime();
+ int64_t t_rel = av_gettime_relative();
va_list va;
char buf[1024];
@@ -615,8 +618,10 @@ static void update_benchmark(const char *fmt, ...)
va_start(va, fmt);
vsnprintf(buf, sizeof(buf), fmt, va);
va_end(va);
- av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %s \n", t -
current_time, buf);
+ av_log(NULL, AV_LOG_INFO, "bench: %8"PRIu64" %8"PRIu64" %s \n",
+ t - current_time, t_rel - current_time_rel, buf);
}
+ current_time_rel = t_rel;
current_time = t;
}
}
--
1.9.1
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