On 2/20/19, 6:06 PM, "ffmpeg-user on behalf of Carl Eugen Hoyos"
<[email protected] on behalf of [email protected]> wrote:
2019-02-20 21:15 GMT+01:00, DeBacker, Bart <[email protected]>:
>
> On 2/19/19, 2:15 PM, "ffmpeg-user on behalf of Carl Eugen Hoyos"
>>
>> 2019-02-18 22:53 GMT+01:00, Marton Balint <[email protected]>:
>> >
>> > On Mon, 18 Feb 2019, DeBacker, Bart wrote:
>>
>> >> I grabbed the latest snapshot and see the same behavior. I don't
>> >> think this is really a bug, since the frames exist and are valid, but
>> >> the MXF metadata is specifying a start time that is a few frames
>> >> in and I would like the MP4 to match that. Hoping there is a flag
>> >> I am missing.
>> > I am afraid there is no magic option in ffmpeg to fix this at the
>> > moment.
>>
>> Do we have such a sample?
> Let me know if there is a better place to put these, but for now
> I shared via DropBox.
>
> Here is the hires file:
>
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.dropbox.com_s_1ayniyk2c2vst3q_hires.mxf&d=DwIGaQ&c=W8uiIUydLnv14aAum3Oieg&r=aerhCAdngbrokymnbwblqp9K3ANfkoN5gSBjxf80t0U&m=eHX85AHQvBN_-60zzWasfP4uYiuEEk2ruLbZAuOnDHg&s=5F7qByydkP66k-2HJIFwopLISL2pf_skMT4LQIzc3X4&e=
Thank you!
Do we also know which "tag" (if this is the correct mxf term) we ignore?
Carl Eugen
I believe the 'Origin' key should be used.
"Origin: The number of Edit Units of a Track which exist before the Zero Point
of a Timeline Track. A positive
value shall indicate that the Timeline Track starts before the Zero Point of
the Package. A negative value shall
indicate that the Timeline Track starts after the Zero Point of the Package."
From:
https://ieeexplore.ieee.org/document/7292073
Bart
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