[FFmpeg-devel] [PATCH] avdevice/decklink: add option to drop frames till timecode is seen

[Ilinca Tudose]

Hi,

We tested this with several types of tapes. The results are as follows:

Out of 58 captures on Betacam tapes 55 had 0 frame offset and 3 had an
offset of 1 frame. All 3 were captured using the flag "-wait_for_tc 1". Out
of the 58 captures roughly half were captured with and half without
"-wait_for_tc
1".

Out of 26 HDCAM captures (50/50 with/without "-wait_for_tc 1") all 26 had 0
TC offset.

Let me know if there's any questions re testing. The testing setup is the
same as previously mentioned.

Thanks,
ilinca

On Wed, Nov 13, 2019 at 5:40 PM Gyan <ffmpeg at gyani.pro> wrote:

> As suggested in the review of an earlier patch*, this one drops frames
> till a TC is seen.
>
> Testing results to follow.
>
> Thanks,
> Gyan
>
> *https://patchwork.ffmpeg.org/patch/14081/
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