can gst_buffer_map also map the timestamp and metadata?

[Tom Bailey]

Hi,

You may wish to take a look at ipcpipelinesrc / ipcpipelinesink if you want to pass buffers between processes.

Tom

------ Original message------
From: ^_^Sisyphus^_^
Date: Fri, 11 Sep 2020 20:24
To: gstreamer-devel at lists.freedesktop.org;
Cc:
Subject:can gst_buffer_map also map the timestamp and metadata?

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Hi All,

I am looking into shmsink/shmsrc, the buffer passthrough does not contain any metadata such as pts, dts. I wonder if gst_buffer_map() actually is supposed to contain that data or it only contains the memory the buffer wrapped?

Is there any plugin that actually passes the buffer with timestamp to another process? Is there any muxer that allows me to wrap the buffer with its metadata into another buffer so I can actually demux it out with the correct timestamp after received by shmsrc?

Thanks,


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