On 3/23/18 10:56 AM, vdi...@akamai.com wrote:
> From: Vishwanath Dixit <vdi...@akamai.com>
>
> @availabilityStartTime specifies the anchor for the computation of the
> earliest
> availability time (in UTC) for any Segment in the Media Presentation.
Please be little more verbose for a clearer explanation.
> ---
> libavformat/dashenc.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
> index 7b854b5..b62cb3e 100644
> --- a/libavformat/dashenc.c
> +++ b/libavformat/dashenc.c
> @@ -740,9 +740,6 @@ static int write_manifest(AVFormatContext *s, int final)
> update_period = 500;
> avio_printf(out, "\tminimumUpdatePeriod=\"PT%"PRId64"S\"\n",
> update_period);
> avio_printf(out, "\tsuggestedPresentationDelay=\"PT%"PRId64"S\"\n",
> c->last_duration / AV_TIME_BASE);
> - if (!c->availability_start_time[0] && s->nb_streams > 0 &&
> c->streams[0].nb_segments > 0) {
> - format_date_now(c->availability_start_time,
> sizeof(c->availability_start_time));
> - }
> if (c->availability_start_time[0])
> avio_printf(out, "\tavailabilityStartTime=\"%s\"\n",
> c->availability_start_time);
> format_date_now(now_str, sizeof(now_str));
> @@ -1282,6 +1279,10 @@ static int dash_write_packet(AVFormatContext *s,
> AVPacket *pkt)
> if (os->first_pts == AV_NOPTS_VALUE)
> os->first_pts = pkt->pts;
>
> + if (!c->availability_start_time[0])
> + format_date_now(c->availability_start_time,
> + sizeof(c->availability_start_time));
> +
> if (c->use_template && !c->use_timeline) {
> elapsed_duration = pkt->pts - os->first_pts;
> seg_end_duration = (int64_t) os->segment_index * c->seg_duration;
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