> 2021年4月6日 上午1:45，Matt Robinson <g...@nerdoftheherd.com> 写道：
>
> Currently, the DASH demuxer omits the final segment for a non-live
> stream (using SegmentTemplate) if it is shorter than the other segments.
>
> Correct calc_max_seg_no to round up when calulating the number of
> segments instead of rounding down to resolve this issue.
>
> Signed-off-by: Matt Robinson <g...@nerdoftheherd.com>
> ---
> libavformat/dashdec.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
> index 6f3f28dcc7..73effd85db 100644
> --- a/libavformat/dashdec.c
> +++ b/libavformat/dashdec.c
> @@ -1445,7 +1445,7 @@ static int64_t calc_max_seg_no(struct representation
> *pls, DASHContext *c)
> } else if (c->is_live && pls->fragment_duration) {
> num = pls->first_seq_no + (((get_current_time_in_sec() -
> c->availability_start_time)) * pls->fragment_timescale) /
> pls->fragment_duration;
> } else if (pls->fragment_duration) {
> - num = pls->first_seq_no + (c->media_presentation_duration *
> pls->fragment_timescale) / pls->fragment_duration;
> + num = pls->first_seq_no + av_rescale_rnd(1,
> c->media_presentation_duration * pls->fragment_timescale,
> pls->fragment_duration, AV_ROUND_UP);
> }
>
> return num;
> --
> 2.25.1
>
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LGTM
Thanks
Steven Liu
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