[FFmpeg-devel] [PATCH v1] lavf/img2enc: add support for option strftime_source

Carl Eugen Hoyos ceffmpeg at gmail.com
Thu Apr 18 04:23:12 EEST 2019


2019-04-18 2:02 GMT+02:00, Jun Li <junli1026 at gmail.com>:
> On Wed, Apr 17, 2019 at 3:11 PM Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>
>> 2019-04-15 8:43 GMT+02:00, Jun Li <junli1026 at gmail.com>:
>> > Currently the strftime option generate timestamp based on generation
>> > time. The new option would calcualte timestamp from source's
>> > start_realtime and pkt->pts, try to generate a timestamp matches the
>> > source starting time.
>>
>> > diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
>> > index 8349840c96..16bb143ca6 100644
>> > --- a/libavformat/rtsp.c
>> > +++ b/libavformat/rtsp.c
>> > @@ -2253,6 +2253,7 @@ redo:
>> >                                          (uint64_t)
>> > rtpctx->st->time_base.num * 1000000,
>> >
>> > rtpctx->st->time_base.den);
>> >                      }
>> > +                    av_dict_set_int(&s->metadata, "start_realtime",
>> > s->start_time_realtime, 0);
>>
>> Is this change related?

> Thanks Carl for review !

> Yes, it is related.

But the change should be separate unless something gets broken.

Carl Eugen


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