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adder: Add support for muting individual pads

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This commit is contained in:
Sebastian Dröge 2013-05-30 12:02:53 +02:00
parent 3974379a7f
commit 509246cbac
1 changed files with 23 additions and 3 deletions
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26
gst/adder/gstadder.c
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@ -1198,6 +1198,7 @@ gst_adder_collected (GstCollectPads * pads, gpointer user_data)
gint64 next_offset;
gint64 next_timestamp;
gint rate, bps, bpf;
gboolean had_mute = FALSE;
adder = GST_ADDER (user_data);
@ -1257,12 +1258,14 @@ gst_adder_collected (GstCollectPads * pads, gpointer user_data)
GstCollectData *collect_data;
GstBuffer *inbuf;
gboolean is_gap;
GstAdderPad *pad;
GstClockTime timestamp, stream_time;
/* take next to see if this is the last collectdata */
next = g_slist_next (collected);
collect_data = (GstCollectData *) collected->data;
pad = GST_ADDER_PAD (collect_data->pad);
/* get a buffer of size bytes, if we get a buffer, it is at least outsize
* bytes big. */
@ -1281,7 +1284,14 @@ gst_adder_collected (GstCollectPads * pads, gpointer user_data)
/* sync object properties on stream time */
if (GST_CLOCK_TIME_IS_VALID (stream_time))
gst_object_sync_values (GST_OBJECT (collect_data->pad), stream_time);
gst_object_sync_values (GST_OBJECT (pad), stream_time);
if (pad->mute || pad->volume < G_MINDOUBLE) {
had_mute = TRUE;
GST_DEBUG_OBJECT (adder, "channel %p: skipping muted pad", collect_data);
gst_buffer_unref (inbuf);
continue;
}
is_gap = GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP);
@ -1342,12 +1352,22 @@ gst_adder_collected (GstCollectPads * pads, gpointer user_data)
if (gapbuf) {
GST_LOG_OBJECT (adder, "reusing GAP buffer %p", gapbuf);
outbuf = gapbuf;
} else
} else if (had_mute) {
GstMapInfo map;
/* Means we had all pads muted, create some silence */
outbuf = gst_buffer_new_allocate (NULL, outsize, NULL);
gst_buffer_map (outbuf, &map, GST_MAP_WRITE);
gst_audio_format_fill_silence (adder->info.finfo, map.data, outsize);
gst_buffer_unmap (outbuf, &map);
} else {
/* assume EOS otherwise, this should not happen, really */
goto eos;
} else if (gapbuf)
}
} else if (gapbuf) {
/* we had an output buffer, unref the gapbuffer we kept */
gst_buffer_unref (gapbuf);
}
if (g_atomic_int_compare_and_exchange (&adder->new_segment_pending, TRUE,
FALSE)) {