jayveeangeles / gstreamer-sample-metadata Goto Github PK

Hello! First of all, thank you for isolating these, they were quite useful to me.

Have you managed to send these metadata structs through UDP? I'm adding the meta and retrieving it to buffers via element pads, but as soon as I introduce an UDP sink/source they are lost. Here's an example pipeline plus some hints on the padded elements:

• sender: Writes an integer to the meta. Always succeeds.
• receiver: Reads such integer from the meta. Always succeeds.
• receiver_udp: Reads such integer from the meta after UDP streaming.
  • If UDP is disabled (see #if *** #endif) it can successfully read the data after encoding & decoding the buffer (rtp payload + h264).
  • If UDP is enabled, fails to read the meta: the output of GST_DETECTIONMETAS_GET is null.

const gchar *pipeline_str =
        "   videotestsrc name=src "
        " ! queue max-size-buffers=10 "
        " ! identity name=sender "
        " ! identity name=receiver "
        " ! x264enc tune=zerolatency "
        " ! rtph264pay config-interval=-1 "
#if 1
        " ! udpsink host=127.0.0.1 port=1234 async=false "
        " udpsrc port=1234 "
#endif
        " ! application/x-rtp "
        " ! rtph264depay "
        " ! h264parse config-interval=-1 "
        " ! avdec_h264  "
        " ! identity name=receiver_udp "
        " ! videoconvert "
        " ! autovideosink ";