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splitmuxsink: Add alignment-threshold argument

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If a non-reference stream is behind the reference stream by an amount of
time smaller than the alignment threshold (in nsec), it counts as being
after it.

https://bugzilla.gnome.org/show_bug.cgi?id=782563
This commit is contained in:
Vivia Nikolaidou 2017-05-12 17:53:57 +03:00 committed by Sebastian Dröge
parent 5f7fe63fea
commit a910329f6d
2 changed files with 35 additions and 3 deletions
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37
gst/multifile/gstsplitmuxsink.c
View file

@ -79,6 +79,7 @@ enum
PROP_SEND_KEYFRAME_REQUESTS,
PROP_MAX_FILES,
PROP_MUXER_OVERHEAD,
PROP_ALIGNMENT_THRESHOLD,
PROP_MUXER,
PROP_SINK
};
@ -88,6 +89,7 @@ enum
#define DEFAULT_MAX_FILES 0
#define DEFAULT_MUXER_OVERHEAD 0.02
#define DEFAULT_SEND_KEYFRAME_REQUESTS FALSE
#define DEFAULT_ALIGNMENT_THRESHOLD 0
#define DEFAULT_MUXER "mp4mux"
#define DEFAULT_SINK "filesink"
@ -250,7 +252,12 @@ gst_splitmux_sink_class_init (GstSplitMuxSinkClass * klass)
"old files start to be deleted to make room for new ones.", 0,
G_MAXUINT, DEFAULT_MAX_FILES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_ALIGNMENT_THRESHOLD,
g_param_spec_uint64 ("alignment-threshold", "Alignment threshold (ns)",
"Allow non-reference streams to be that many ns before the reference"
" stream",
0, G_MAXUINT64, DEFAULT_ALIGNMENT_THRESHOLD,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_MUXER,
g_param_spec_object ("muxer", "Muxer",
@ -301,6 +308,7 @@ gst_splitmux_sink_init (GstSplitMuxSink * splitmux)
splitmux->max_files = DEFAULT_MAX_FILES;
splitmux->send_keyframe_requests = DEFAULT_SEND_KEYFRAME_REQUESTS;
splitmux->next_max_tc_time = GST_CLOCK_TIME_NONE;
splitmux->alignment_threshold = DEFAULT_ALIGNMENT_THRESHOLD;
splitmux->threshold_timecode_str = NULL;
@ -406,6 +414,11 @@ gst_splitmux_sink_set_property (GObject * object, guint prop_id,
splitmux->mux_overhead = g_value_get_double (value);
GST_OBJECT_UNLOCK (splitmux);
break;
case PROP_ALIGNMENT_THRESHOLD:
GST_OBJECT_LOCK (splitmux);
splitmux->alignment_threshold = g_value_get_uint64 (value);
GST_OBJECT_UNLOCK (splitmux);
break;
case PROP_SINK:
GST_OBJECT_LOCK (splitmux);
if (splitmux->provided_sink)
@ -470,6 +483,11 @@ gst_splitmux_sink_get_property (GObject * object, guint prop_id,
g_value_set_double (value, splitmux->mux_overhead);
GST_OBJECT_UNLOCK (splitmux);
break;
case PROP_ALIGNMENT_THRESHOLD:
GST_OBJECT_LOCK (splitmux);
g_value_set_uint64 (value, splitmux->alignment_threshold);
GST_OBJECT_UNLOCK (splitmux);
break;
case PROP_SINK:
GST_OBJECT_LOCK (splitmux);
g_value_set_object (value, splitmux->provided_sink);
@ -619,6 +637,19 @@ complete_or_wait_on_out (GstSplitMuxSink * splitmux, MqStreamCtx * ctx)
/* When first starting up, the reference stream has to output
* the first buffer to prepare the muxer and sink */
gboolean can_output = (ctx->is_reference || splitmux->ready_for_output);
GstClockTimeDiff my_max_out_running_time = splitmux->max_out_running_time;
if (!(splitmux->max_out_running_time == 0 ||
splitmux->max_out_running_time == GST_CLOCK_STIME_NONE ||
splitmux->alignment_threshold == 0 ||
splitmux->max_out_running_time < splitmux->alignment_threshold)) {
my_max_out_running_time -= splitmux->alignment_threshold;
GST_LOG_OBJECT (ctx->srcpad,
"Max out running time currently %" GST_STIME_FORMAT
", with threshold applied it is %" GST_STIME_FORMAT,
GST_STIME_ARGS (splitmux->max_out_running_time),
GST_STIME_ARGS (my_max_out_running_time));
}
if (ctx->flushing
|| splitmux->output_state == SPLITMUX_OUTPUT_STATE_STOPPED)
@ -627,11 +658,11 @@ complete_or_wait_on_out (GstSplitMuxSink * splitmux, MqStreamCtx * ctx)
GST_LOG_OBJECT (ctx->srcpad,
"Checking running time %" GST_STIME_FORMAT " against max %"
GST_STIME_FORMAT, GST_STIME_ARGS (ctx->out_running_time),
GST_STIME_ARGS (splitmux->max_out_running_time));
GST_STIME_ARGS (my_max_out_running_time));
if (can_output) {
if (splitmux->max_out_running_time == GST_CLOCK_STIME_NONE ||
ctx->out_running_time < splitmux->max_out_running_time) {
ctx->out_running_time < my_max_out_running_time) {
return;
}

1
gst/multifile/gstsplitmuxsink.h
View file

@ -118,6 +118,7 @@ struct _GstSplitMuxSink
gboolean send_keyframe_requests;
gchar *threshold_timecode_str;
GstClockTime next_max_tc_time;
GstClockTime alignment_threshold;
GstElement *muxer;
GstElement *sink;