webrtcbin: Include all accepted media formats in SDP answers
Until this patch only the first format was added. Fixes #4458 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9117>
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@ -4685,12 +4685,26 @@ _create_answer_task (GstWebRTCBin * webrtc, const GstStructure * options,
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gst_structure_remove_fields (s, "rtcp-fb-nack", NULL);
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}
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if (gst_sdp_media_set_media_from_caps (answer_caps, media) != GST_SDP_OK) {
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GST_WARNING_OBJECT (webrtc,
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"Could not build media from caps %" GST_PTR_FORMAT, answer_caps);
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gst_clear_caps (&answer_caps);
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gst_clear_caps (&offer_caps);
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goto rejected;
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static const gchar *disallowed_payloads[4] = { "rtx", "red", "ulpfec",
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NULL
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};
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guint answer_caps_size = gst_caps_get_size (answer_caps);
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for (guint l = 0; l < answer_caps_size; l++) {
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const GstStructure *s = gst_caps_get_structure (answer_caps, l);
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const gchar *enc_name = gst_structure_get_string (s, "encoding-name");
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gchar *tmp = g_ascii_strdown (enc_name, -1);
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if (g_strv_contains (disallowed_payloads, tmp)) {
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g_free (tmp);
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continue;
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}
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g_free (tmp);
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if (gst_sdp_media_add_media_from_structure (s, media) != GST_SDP_OK) {
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GST_WARNING_OBJECT (webrtc,
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"Could not set media from %" GST_PTR_FORMAT, s);
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gst_clear_caps (&answer_caps);
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gst_clear_caps (&offer_caps);
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goto rejected;
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}
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}
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_get_rtx_target_pt_and_ssrc_from_caps (answer_caps, &target_pt,
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