[FFmpeg-devel] [PATCH V1] lavf/mov: fix fMP4 tfdt box lead to dts reset issue

[Carl Eugen Hoyos]

Am Di., 13. Aug. 2019 um 12:36 Uhr schrieb Jun Zhao <mypopydev at gmail.com>:
>
> From: Jun Zhao <barryjzhao at tencent.com>
>
> In fMP4 format, traf maybe have zero or more trun box, in this case,
> we just used tfdt as dts once. The sample layout like this:
>
> [moof] size=8+1392
>   [mfhd] size=12+4
>     sequence number = 29
>   [traf] size=8+1368
>     [tfhd] size=12+16, flags=20038
>       track ID = 1
>       default sample duration = 512
>       default sample size = 40720
>       default sample flags = 0
>     [tfdt] size=12+8, version=1
>       base media decode time = 1873920
>     [trun] size=12+452, version=1, flags=e01
>       sample count = 37
>       data offset = 1408
>     [trun] size=12+452, version=1, flags=e01
>       sample count = 37
>       data offset = 292973
>     [trun] size=12+380, version=1, flags=e01
>       sample count = 31
>       data offset = 586457

If this is meant to fix ticket #8070, please mention it in the commit message.

But more important: How did you test this patch / what does this patch
change with the sample from ticket #8070?

Carl Eugen