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tsmux: When selecting random PIDs, name the pads according to those PIDs

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Some elements will make use of the automatically generated names to
create new pads in future muxer instances, for example splitmuxsink.

Previously we would've created a pad with a random pid that would become
"sink_0", and then on a new muxer instance a pad "sink_0" and tsmux
would've then failed because 0 is not a valid PID.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2318>
This commit is contained in:
Sebastian Dröge 2021-06-10 11:42:24 +03:00 committed by GStreamer Marge Bot
parent ba26a5aea8
commit 52a0c36598
1 changed files with 7 additions and 1 deletions
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8
gst/mpegtsmux/gstbasetsmux.c
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@ -1353,6 +1353,7 @@ gst_base_ts_mux_request_new_pad (GstElement * element, GstPadTemplate * templ,
GstBaseTsMux *mux = GST_BASE_TS_MUX (element);
gint pid = -1;
GstPad *pad = NULL;
gchar *free_name = NULL;
if (name != NULL && sscanf (name, "sink_%d", &pid) == 1) {
if (tsmux_find_stream (mux->tsmux, pid))
@ -1365,6 +1366,9 @@ gst_base_ts_mux_request_new_pad (GstElement * element, GstPadTemplate * templ,
do {
pid = tsmux_get_new_pid (mux->tsmux);
} while (gst_base_ts_mux_has_pad_with_pid (mux, pid));
/* Name the pad correctly after the selected pid */
name = free_name = g_strdup_printf ("sink_%d", pid);
}
pad = (GstPad *)
@ -1374,6 +1378,8 @@ gst_base_ts_mux_request_new_pad (GstElement * element, GstPadTemplate * templ,
gst_base_ts_mux_pad_reset (GST_BASE_TS_MUX_PAD (pad));
GST_BASE_TS_MUX_PAD (pad)->pid = pid;
g_free (free_name);
return pad;
/* ERRORS */
@ -1387,7 +1393,7 @@ stream_exists:
invalid_stream_pid:
{
GST_ELEMENT_ERROR (element, STREAM, MUX,
("Invalid Elementary stream PID (< 0x40)"), (NULL));
("Invalid Elementary stream PID (0x%02u < 0x40)", pid), (NULL));
return NULL;
}
}