From: Limin Wang <lance.lmw...@gmail.com>
The bitrate and speed stats are wrong If the copyts is enabled.
Please test with below command:
wget http://samples.mplayerhq.hu/MPEG2/foxksaz.ts
./ffmpeg -y -copyts -i ./foxksaz.ts -c:v libx264 -x264opts \
nal-hrd=cbr:force-cfr=1 -b:v 3500k -minrate 3500k -maxrate 3500k -bufsize \
1000k -c:a mp2 -muxrate 4500k -vframes 1000 test.ts
before:
frame= 1000 fps=112 q=-1.0 Lsize= 9063kB time=09:10:12.41 bitrate=
2.2kbits/s speed=3.7e+03x
after:
frame= 1000 fps=112 q=-1.0 Lsize= 9062kB time=00:00:15.78
bitrate=4703.4kbits/s speed=1.77x
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
fftools/ffmpeg.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index cb7644d..6a5bf7d 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -344,6 +344,7 @@ static volatile int received_nb_signals = 0;
static atomic_int transcode_init_done = ATOMIC_VAR_INIT(0);
static volatile int ffmpeg_exited = 0;
static int main_return_code = 0;
+static int64_t copy_ts_first_pts = AV_NOPTS_VALUE;
static void
sigterm_handler(int sig)
@@ -1753,9 +1754,17 @@ static void print_report(int is_last_report, int64_t
timer_start, int64_t cur_ti
vid = 1;
}
/* compute min output value */
- if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE)
+ if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE) {
pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st),
ost->st->time_base, AV_TIME_BASE_Q));
+ if (copy_ts) {
+ if (copy_ts_first_pts == AV_NOPTS_VALUE && pts > 1)
+ copy_ts_first_pts = pts;
+ if (copy_ts_first_pts != AV_NOPTS_VALUE)
+ pts -= copy_ts_first_pts;
+ }
+ }
+
if (is_last_report)
nb_frames_drop += ost->last_dropped;
}
--
1.8.3.1
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