On Wed, 8 Jan 2020, Martin Storsjö wrote:
On Fri, 20 Dec 2019, Michael Niedermayer wrote:
On Tue, Dec 17, 2019 at 03:15:09PM +0200, Martin Storsjö wrote:
Keep all the existing data fields as they are (there's lots and
lots of nontrivial calculation and heuristics based on them in
their current form), but derive the duration as the difference
between the pts of the first packet to the maximum pts+duration
(not necessarily the last packet); use this duration in any box
where the actual presentation duration is supposed to be.
Fixes: 8420
---
Fixed to fetch the duration for tmcd tracks from their designated
source track.
---
libavformat/movenc.c | 35 ++++++++++++++++++++++++++++-------
1 file changed, 28 insertions(+), 7 deletions(-)
I found another case that changes, again dont know which is more correct
make -j12 && ./ffmpeg -i ~/tickets/3453/mov_with_tmcd.mov -y -bitexact
-codec copy -map 0 -t 2 file.mov ; ./ffprobe -v 0 file.mov -show_packets
-print_format compact > /tmp/before
--- /tmp/before 2019-12-20 23:28:04.009327038 +0100
+++ /tmp/after 2019-12-20 23:27:17.213326052 +0100
@@ -188,7 +188,7 @@
packet|codec_type=audio|stream_index=1|pts=88320|pts_time=1.840000|dts=88320|dts_time=1.840000|duration=1024|duration_time=0.021333|convergence_duration=N/A|convergence_duration_time=N/A|size=4096|pos=408905|flags=K_
packet|codec_type=data|stream_index=2|pts=46|pts_time=1.840000|dts=46|dts_time=1.840000|duration=1|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=4|pos=413001|flags=K_
packet|codec_type=audio|stream_index=1|pts=89344|pts_time=1.861333|dts=89344|dts_time=1.861333|duration=896|duration_time=0.018667|convergence_duration=N/A|convergence_duration_time=N/A|size=3584|pos=413005|flags=K_
-packet|codec_type=video|stream_index=0|pts=26624|pts_time=2.080000|dts=24064|dts_time=1.880000|duration=512|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=776|pos=416589|flags=_D
+packet|codec_type=video|stream_index=0|pts=26624|pts_time=2.080000|dts=24064|dts_time=1.880000|duration=512|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=776|pos=416589|flags=__
packet|codec_type=audio|stream_index=1|pts=90240|pts_time=1.880000|dts=90240|dts_time=1.880000|duration=1024|duration_time=0.021333|convergence_duration=N/A|convergence_duration_time=N/A|size=4096|pos=417365|flags=K_
packet|codec_type=data|stream_index=2|pts=47|pts_time=1.880000|dts=47|dts_time=1.880000|duration=1|duration_time=0.040000|convergence_duration=N/A|convergence_duration_time=N/A|size=4|pos=421461|flags=K_
packet|codec_type=audio|stream_index=1|pts=91264|pts_time=1.901333|dts=91264|dts_time=1.901333|duration=896|duration_time=0.018667|convergence_duration=N/A|convergence_duration_time=N/A|size=3584|pos=421465|flags=K_
I would say the new behaviour is more correct here.
So, if there's no new remarks to this patch, I'd like to push e.g.
tomorrow.
// Martin
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