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flvmux: use GstCollectPads2 buffer callback and running time clipper

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... since the default collection heuristics suffice.
This commit is contained in:
Mark Nauwelaerts 2011-12-16 19:15:03 +01:00
parent 0c7a491a6f
commit 8c32195d51
1 changed files with 22 additions and 61 deletions
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83
gst/flv/gstflvmux.c
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@ -99,7 +99,8 @@ GST_BOILERPLATE_FULL (GstFlvMux, gst_flv_mux, GstElement, GST_TYPE_ELEMENT,
static void gst_flv_mux_finalize (GObject * object);
static GstFlowReturn
gst_flv_mux_collected (GstCollectPads2 * pads, gpointer user_data);
gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
GstBuffer * buf, gpointer user_data);
static gboolean
gst_flv_mux_handle_sink_event (GstCollectPads2 * pads, GstCollectData2 * data,
GstEvent * event, gpointer user_data);
@ -201,11 +202,12 @@ gst_flv_mux_init (GstFlvMux * mux, GstFlvMuxClass * g_class)
mux->new_tags = FALSE;
mux->collect = gst_collect_pads2_new ();
gst_collect_pads2_set_function (mux->collect,
(GstCollectPads2Function) GST_DEBUG_FUNCPTR (gst_flv_mux_collected), mux);
gst_collect_pads2_set_buffer_function (mux->collect,
GST_DEBUG_FUNCPTR (gst_flv_mux_handle_buffer), mux);
gst_collect_pads2_set_event_function (mux->collect,
(GstCollectPads2EventFunction)
GST_DEBUG_FUNCPTR (gst_flv_mux_handle_sink_event), mux);
gst_collect_pads2_set_clip_function (mux->collect,
GST_DEBUG_FUNCPTR (gst_collect_pads2_clip_running_time), mux);
gst_flv_mux_reset (GST_ELEMENT (mux));
}
@ -1191,18 +1193,12 @@ gst_flv_mux_update_index (GstFlvMux * mux, GstBuffer * buffer, GstFlvPad * cpad)
}
static GstFlowReturn
gst_flv_mux_write_buffer (GstFlvMux * mux, GstFlvPad * cpad)
gst_flv_mux_write_buffer (GstFlvMux * mux, GstFlvPad * cpad, GstBuffer * buffer)
{
GstBuffer *tag;
GstBuffer *buffer =
gst_collect_pads2_pop (mux->collect, (GstCollectData2 *) cpad);
GstFlowReturn ret;
/* arrange downstream running time */
buffer = gst_buffer_make_metadata_writable (buffer);
GST_BUFFER_TIMESTAMP (buffer) =
gst_segment_to_running_time (&cpad->collect.segment,
GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (buffer));
/* clipping function arranged for running_time */
if (!mux->streamable)
gst_flv_mux_update_index (mux, buffer, cpad);
@ -1384,14 +1380,13 @@ gst_flv_mux_rewrite_header (GstFlvMux * mux)
}
static GstFlowReturn
gst_flv_mux_collected (GstCollectPads2 * pads, gpointer user_data)
gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
GstBuffer * buffer, gpointer user_data)
{
GstFlvMux *mux = GST_FLV_MUX (user_data);
GstFlvPad *best;
GstClockTime best_time;
GstFlowReturn ret;
GSList *sl;
gboolean eos = TRUE;
if (mux->state == GST_FLV_MUX_STATE_HEADER) {
if (mux->collect->data == NULL) {
@ -1417,46 +1412,12 @@ gst_flv_mux_collected (GstCollectPads2 * pads, gpointer user_data)
mux->new_tags = FALSE;
}
best = NULL;
best_time = GST_CLOCK_TIME_NONE;
for (sl = mux->collect->data; sl; sl = sl->next) {
GstFlvPad *cpad = sl->data;
GstBuffer *buffer = gst_collect_pads2_peek (pads, (GstCollectData2 *) cpad);
GstClockTime time;
if (!buffer)
continue;
eos = FALSE;
time = GST_BUFFER_TIMESTAMP (buffer);
gst_buffer_unref (buffer);
/* Use buffers without valid timestamp first */
if (!GST_CLOCK_TIME_IS_VALID (time)) {
GST_WARNING_OBJECT (pads, "Buffer without valid timestamp");
best_time = cpad->last_timestamp;
best = cpad;
break;
}
time = gst_segment_to_running_time (&cpad->collect.segment,
GST_FORMAT_TIME, time);
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (time))) {
GST_DEBUG_OBJECT (mux, "clipping buffer on pad %s outside segment",
GST_PAD_NAME (cpad->collect.pad));
buffer = gst_collect_pads2_pop (pads, (GstCollectData2 *) cpad);
gst_buffer_unref (buffer);
return GST_FLOW_OK;
}
if (best == NULL || (GST_CLOCK_TIME_IS_VALID (best_time)
&& time < best_time)) {
best = cpad;
best_time = time;
}
best = (GstFlvPad *) cdata;
if (best) {
g_assert (buffer);
best_time = GST_BUFFER_TIMESTAMP (buffer);
} else {
best_time = GST_CLOCK_TIME_NONE;
}
/* The FLV timestamp is an int32 field. For non-live streams error out if a
@ -1465,17 +1426,17 @@ gst_flv_mux_collected (GstCollectPads2 * pads, gpointer user_data)
if (!mux->streamable && GST_CLOCK_TIME_IS_VALID (best_time)
&& best_time / GST_MSECOND > G_MAXINT32) {
GST_WARNING_OBJECT (mux, "Timestamp larger than FLV supports - EOS");
eos = TRUE;
gst_buffer_unref (buffer);
buffer = NULL;
best = NULL;
}
if (!eos && best) {
return gst_flv_mux_write_buffer (mux, best);
} else if (eos) {
if (best) {
return gst_flv_mux_write_buffer (mux, best, buffer);
} else {
gst_flv_mux_rewrite_header (mux);
gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
return GST_FLOW_UNEXPECTED;
} else {
return GST_FLOW_OK;
}
}