[FFmpeg-devel] [PATCH] avformat/dashdec: Also fetch final partial segment

[Steven Liu]

> 2021年4月6日 上午1:45，Matt Robinson <git at 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 <git at 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