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ext/ogg/gstoggdemux.c: Combine GstFlowReturn from the source pads to give a meaningfull result to the upstream peer o...

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Original commit message from CVS:
* ext/ogg/gstoggdemux.c: (gst_ogg_demux_chain_peer),
(gst_ogg_demux_activate_chain), (gst_ogg_demux_combine_flows),
(gst_ogg_demux_loop):
Combine GstFlowReturn from the source pads to give a
meaningfull result to the upstream peer or to stop the
processing task in case of errors.
This commit is contained in:
Wim Taymans 2006-06-15 15:27:49 +00:00
parent ebfe6f3c6a
commit d609b0f7c5
2 changed files with 105 additions and 40 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2006-06-15 Wim Taymans <wim@fluendo.com>
* ext/ogg/gstoggdemux.c: (gst_ogg_demux_chain_peer),
(gst_ogg_demux_activate_chain), (gst_ogg_demux_combine_flows),
(gst_ogg_demux_loop):
Combine GstFlowReturn from the source pads to give a
meaningfull result to the upstream peer or to stop the
processing task in case of errors.
2006-06-14 Tim-Philipp Müller <tim at centricular dot net>
* gst/playback/gststreaminfo.c: (cb_probe):

136
ext/ogg/gstoggdemux.c
View file

@ -140,6 +140,7 @@ struct _GstOggPad
ogg_stream_state stream;
gboolean discont;
GstFlowReturn last_ret; /* last return of _pad_push() */
gboolean dynamic; /* True if the internal element had dynamic pads */
guint padaddedid; /* The signal id for element::pad-added */
@ -235,6 +236,8 @@ static gboolean gst_ogg_pad_query_convert (GstOggPad * pad,
static GstClockTime gst_annodex_granule_to_time (gint64 granulepos,
gint64 granulerate_n, gint64 granulerate_d, guint8 granuleshift);
static GstFlowReturn gst_ogg_demux_combine_flows (GstOggDemux * ogg,
GstOggPad * pad, GstFlowReturn ret);
static GstPadClass *ogg_pad_parent_class = NULL;
@ -943,7 +946,7 @@ static GstFlowReturn
gst_ogg_demux_chain_peer (GstOggPad * pad, ogg_packet * packet)
{
GstBuffer *buf;
GstFlowReturn ret;
GstFlowReturn ret, cret;
GstOggDemux *ogg = pad->ogg;
GstFormat format;
gint64 current_time;
@ -953,8 +956,11 @@ gst_ogg_demux_chain_peer (GstOggPad * pad, ogg_packet * packet)
"%p streaming to peer serial %08x", pad, pad->serialno);
ret =
gst_pad_alloc_buffer_and_set_caps (GST_PAD (pad), GST_BUFFER_OFFSET_NONE,
packet->bytes, GST_PAD_CAPS (pad), &buf);
gst_pad_alloc_buffer_and_set_caps (GST_PAD_CAST (pad),
GST_BUFFER_OFFSET_NONE, packet->bytes, GST_PAD_CAPS (pad), &buf);
/* combine flows */
cret = gst_ogg_demux_combine_flows (ogg, pad, ret);
if (ret != GST_FLOW_OK)
goto no_buffer;
@ -970,10 +976,10 @@ gst_ogg_demux_chain_peer (GstOggPad * pad, ogg_packet * packet)
pad->discont = FALSE;
}
ret = gst_pad_push (GST_PAD (pad), buf);
/* ignore not linked */
if (ret == GST_FLOW_NOT_LINKED)
ret = GST_FLOW_OK;
ret = gst_pad_push (GST_PAD_CAST (pad), buf);
/* combine flows */
cret = gst_ogg_demux_combine_flows (ogg, pad, ret);
/* we're done with skeleton stuff */
if (pad->is_skeleton)
@ -1005,22 +1011,22 @@ gst_ogg_demux_chain_peer (GstOggPad * pad, ogg_packet * packet)
GST_TIME_ARGS (current_time));
done:
return ret;
/* return combined flow result */
return cret;
/* special cases */
no_buffer:
{
GST_DEBUG_OBJECT (ogg,
"%p could not get buffer from peer %08x, %d (%s)", pad,
pad->serialno, ret, gst_flow_get_name (ret));
if (ret == GST_FLOW_NOT_LINKED)
ret = GST_FLOW_OK;
return ret;
"%p could not get buffer from peer %08x, %d (%s), combined %d (%s)",
pad, pad->serialno, ret, gst_flow_get_name (ret),
cret, gst_flow_get_name (cret));
goto done;
}
convert_failed:
{
GST_WARNING_OBJECT (ogg, "could not convert granulepos to time");
return ret;
goto done;
}
}
@ -1705,6 +1711,7 @@ gst_ogg_demux_activate_chain (GstOggDemux * ogg, GstOggChain * chain,
/* mark discont */
pad->discont = TRUE;
pad->last_ret = GST_FLOW_OK;
/* activate first */
gst_pad_set_active (GST_PAD_CAST (pad), TRUE);
@ -2683,6 +2690,44 @@ gst_ogg_demux_send_event (GstOggDemux * ogg, GstEvent * event)
gst_event_unref (event);
}
static GstFlowReturn
gst_ogg_demux_combine_flows (GstOggDemux * ogg, GstOggPad * pad,
GstFlowReturn ret)
{
GstOggChain *chain;
/* store the value */
pad->last_ret = ret;
/* if it's success we can return the value right away */
if (GST_FLOW_IS_SUCCESS (ret))
goto done;
/* any other error that is not-linked can be returned right
* away */
if (ret != GST_FLOW_NOT_LINKED)
goto done;
/* only return NOT_LINKED if all other pads returned NOT_LINKED */
chain = ogg->current_chain;
if (chain) {
gint i;
for (i = 0; i < chain->streams->len; i++) {
GstOggPad *opad = g_array_index (chain->streams, GstOggPad *, i);
ret = opad->last_ret;
/* some other return value (must be SUCCESS but we can return
* other values as well) */
if (ret != GST_FLOW_NOT_LINKED)
goto done;
}
/* if we get here, all other pads were unlinked and we return
* NOT_LINKED then */
}
done:
return ret;
}
/* random access code
*
* - first find all the chains and streams by scanning the file.
@ -2724,10 +2769,13 @@ gst_ogg_demux_loop (GstOggPad * pad)
gst_event_unref (event);
}
GST_LOG_OBJECT (ogg, "pull data %" G_GINT64_FORMAT, ogg->offset);
if (ogg->offset == ogg->length)
if (ogg->offset == ogg->length) {
GST_LOG_OBJECT (ogg, "no more data to pull %" G_GINT64_FORMAT
" == %" G_GINT64_FORMAT, ogg->offset, ogg->length);
goto eos;
}
GST_LOG_OBJECT (ogg, "pull data %" G_GINT64_FORMAT, ogg->offset);
ret = gst_pad_pull_range (ogg->sinkpad, ogg->offset, CHUNKSIZE, &buffer);
if (ret != GST_FLOW_OK) {
GST_LOG_OBJECT (ogg, "Failed pull_range");
@ -2758,35 +2806,43 @@ chain_read_failed:
}
eos:
{
ret = GST_FLOW_OK;
/* segment playback just posts a segment end message instead of
* pushing out EOS. */
ogg->segment_running = FALSE;
if (ogg->segment.flags & GST_SEEK_FLAG_SEGMENT) {
gint64 stop;
if ((stop = ogg->segment.stop) == -1)
stop = ogg->segment.duration;
GST_LOG_OBJECT (ogg, "Sending segment done, at end of segment");
gst_element_post_message (GST_ELEMENT (ogg),
gst_message_new_segment_done (GST_OBJECT (ogg), GST_FORMAT_TIME,
stop));
} else {
GST_LOG_OBJECT (ogg, "Sending EOS, at end of stream");
gst_ogg_demux_send_event (ogg, gst_event_new_eos ());
}
ret = GST_FLOW_UNEXPECTED;
goto pause;
}
pause:
{
GST_LOG_OBJECT (ogg, "pausing task, reason %s", gst_flow_get_name (ret));
const gchar *reason = gst_flow_get_name (ret);
GST_LOG_OBJECT (ogg, "pausing task, reason %s", reason);
ogg->segment_running = FALSE;
gst_pad_pause_task (ogg->sinkpad);
if (GST_FLOW_IS_FATAL (ret)) {
gst_ogg_demux_send_event (ogg, gst_event_new_eos ());
GST_ELEMENT_ERROR (ogg, STREAM, FAILED,
(_("Internal data stream error.")),
("stream stopped, reason %s", gst_flow_get_name (ret)));
if (GST_FLOW_IS_FATAL (ret) || ret == GST_FLOW_NOT_LINKED) {
if (ret == GST_FLOW_UNEXPECTED) {
/* perform EOS logic */
if (ogg->segment.flags & GST_SEEK_FLAG_SEGMENT) {
gint64 stop;
/* for segment playback we need to post when (in stream time)
* we stopped, this is either stop (when set) or the duration. */
if ((stop = ogg->segment.stop) == -1)
stop = ogg->segment.duration;
GST_LOG_OBJECT (ogg, "Sending segment done, at end of segment");
gst_element_post_message (GST_ELEMENT (ogg),
gst_message_new_segment_done (GST_OBJECT (ogg), GST_FORMAT_TIME,
stop));
} else {
/* normal playback, send EOS to all linked pads */
GST_LOG_OBJECT (ogg, "Sending EOS, at end of stream");
gst_ogg_demux_send_event (ogg, gst_event_new_eos ());
}
} else {
GST_ELEMENT_ERROR (ogg, STREAM, FAILED,
(_("Internal data stream error.")),
("stream stopped, reason %s", reason));
gst_ogg_demux_send_event (ogg, gst_event_new_eos ());
}
}
return;
}