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ext/ogg/gstoggdemux.c: Better error recovery, ignore unconnected pads and non-fatal errors.

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Original commit message from CVS:
* ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose),
(gst_ogg_pad_submit_packet), (gst_ogg_pad_submit_page),
(gst_ogg_demux_activate_chain), (gst_ogg_demux_loop):
Better error recovery, ignore unconnected pads and
non-fatal errors.
This commit is contained in:
Wim Taymans 2005-07-14 18:13:08 +00:00
parent 63cd64c514
commit 6e5b22e005
2 changed files with 80 additions and 46 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2005-07-14 Wim Taymans <wim@fluendo.com>
* ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose),
(gst_ogg_pad_submit_packet), (gst_ogg_pad_submit_page),
(gst_ogg_demux_activate_chain), (gst_ogg_demux_loop):
Better error recovery, ignore unconnected pads and
non-fatal errors.
2005-07-14 Thomas Vander Stichele <thomas at apestaart dot org>
* docs/libs/tmpl/gstaudio.sgml:

114
ext/ogg/gstoggdemux.c
View file

@ -268,8 +268,6 @@ gst_ogg_pad_dispose (GObject * object)
{
GstOggPad *pad = GST_OGG_PAD (object);
gst_element_set_state (pad->element, GST_STATE_NULL);
gst_object_replace ((GstObject **) (&pad->elem_pad), NULL);
gst_object_replace ((GstObject **) (&pad->element), NULL);
gst_object_replace ((GstObject **) (&pad->elem_out), NULL);
@ -662,6 +660,9 @@ gst_ogg_pad_submit_packet (GstOggPad * pad, ogg_packet * packet)
ret = GST_FLOW_OK;
}
}
/* we just ignore unlinked pads */
if (ret == GST_FLOW_NOT_LINKED)
ret = GST_FLOW_OK;
} else {
/* initialize our internal decoder with packets */
if (!pad->elem_pad)
@ -678,6 +679,8 @@ gst_ogg_pad_submit_packet (GstOggPad * pad, ogg_packet * packet)
GST_BUFFER_OFFSET_END (buf) = packet->granulepos;
ret = gst_pad_chain (pad->elem_pad, buf);
if (GST_FLOW_IS_FATAL (ret))
goto decoder_error;
}
pad->packetno++;
@ -687,7 +690,12 @@ no_decoder:
{
GST_WARNING_OBJECT (ogg,
"pad %08lx does not have elem_pad, no decoder ?", pad);
return GST_FLOW_OK;
return GST_FLOW_ERROR;
}
decoder_error:
{
GST_WARNING_OBJECT (ogg, "internal decoder error");
return GST_FLOW_ERROR;
}
}
@ -705,13 +713,8 @@ gst_ogg_pad_submit_page (GstOggPad * pad, ogg_page * page)
ogg = GST_OGG_DEMUX (GST_PAD_PARENT (pad));
if (ogg_stream_pagein (&pad->stream, page) != 0) {
GST_WARNING_OBJECT (ogg,
"ogg stream choked on page (serial %08lx), resetting stream",
pad->serialno);
gst_ogg_pad_reset (pad);
return GST_FLOW_OK;
}
if (ogg_stream_pagein (&pad->stream, page) != 0)
goto choked;
while (!done) {
ret = ogg_stream_packetout (&pad->stream, &packet);
@ -726,12 +729,8 @@ gst_ogg_pad_submit_page (GstOggPad * pad, ogg_page * page)
break;
case 1:
result = gst_ogg_pad_submit_packet (pad, &packet);
if (result != GST_FLOW_OK) {
GST_WARNING_OBJECT (ogg, "could not submit packet, error: %d",
result);
gst_ogg_pad_reset (pad);
done = TRUE;
}
if (GST_FLOW_IS_FATAL (result))
goto could_not_submit;
break;
default:
GST_WARNING_OBJECT (ogg,
@ -742,6 +741,22 @@ gst_ogg_pad_submit_page (GstOggPad * pad, ogg_page * page)
}
}
return result;
choked:
{
GST_WARNING_OBJECT (ogg,
"ogg stream choked on page (serial %08lx), resetting stream",
pad->serialno);
gst_ogg_pad_reset (pad);
/* we continue to recover */
return GST_FLOW_OK;
}
could_not_submit:
{
GST_WARNING_OBJECT (ogg, "could not submit packet, error: %d", result);
gst_ogg_pad_reset (pad);
return result;
}
}
@ -1156,39 +1171,38 @@ static gboolean
gst_ogg_demux_activate_chain (GstOggDemux * ogg, GstOggChain * chain)
{
gint i;
GstFlowReturn ret;
GList *headers;
GstOggPad *pad;
if (chain == ogg->current_chain)
return TRUE;
gst_ogg_demux_deactivate_current_chain (ogg);
/* first add the pads */
for (i = 0; i < chain->streams->len; i++) {
GstOggPad *pad;
GList *headers;
pad = g_array_index (chain->streams, GstOggPad *, i);
gst_element_add_pad (GST_ELEMENT (ogg), GST_PAD (pad));
}
gst_element_no_more_pads (GST_ELEMENT (ogg));
ogg->current_chain = chain;
/* then send out the buffers */
for (i = 0; i < chain->streams->len; i++) {
pad = g_array_index (chain->streams, GstOggPad *, i);
for (headers = pad->headers; headers; headers = g_list_next (headers)) {
GstBuffer *buffer = GST_BUFFER (headers->data);
ret = gst_pad_push (GST_PAD_CAST (pad), buffer);
if (ret != GST_FLOW_OK)
goto flow_error;
/* we don't care about the return value here */
gst_pad_push (GST_PAD_CAST (pad), buffer);
}
/* and free the headers */
g_list_free (pad->headers);
pad->headers = NULL;
}
gst_element_no_more_pads (GST_ELEMENT (ogg));
ogg->current_chain = chain;
return TRUE;
flow_error:
{
return FALSE;
}
}
static gboolean
@ -1930,39 +1944,51 @@ gst_ogg_demux_loop (GstOggPad * pad)
GST_CHAIN_LOCK (ogg);
got_chains = gst_ogg_demux_find_chains (ogg);
GST_CHAIN_UNLOCK (ogg);
if (!got_chains) {
GST_LOG_OBJECT (ogg, "could not read chains");
goto pause;
}
if (!got_chains)
goto chain_read_failed;
ogg->need_chains = FALSE;
ogg->offset = 0;
}
GST_LOG_OBJECT (ogg, "pull data %lld", ogg->offset);
if (ogg->offset == ogg->length) {
ret = GST_FLOW_OK;
gst_ogg_demux_send_eos (ogg);
goto pause;
}
ret = gst_pad_pull_range (ogg->sinkpad, ogg->offset, CHUNKSIZE, &buffer);
if (ret != GST_FLOW_OK) {
GST_LOG_OBJECT (ogg, "got unexpected %d", ret);
if (ret != GST_FLOW_OK)
goto pause;
}
ogg->offset += GST_BUFFER_SIZE (buffer);
ret = gst_ogg_demux_chain (ogg->sinkpad, buffer);
if (ret != GST_FLOW_OK) {
GST_LOG_OBJECT (ogg, "got unexpected %d, pausing", ret);
if (ret != GST_FLOW_OK)
goto pause;
}
return;
/* ERRORS */
chain_read_failed:
{
GST_ELEMENT_ERROR (ogg, STREAM, DEMUX,
("could not read chains"), ("could not read chains"));
ret = GST_FLOW_ERROR;
goto pause;
}
pause:
GST_LOG_OBJECT (ogg, "pausing task");
{
GST_LOG_OBJECT (ogg, "pausing task, reason %d", ret);
gst_pad_pause_task (ogg->sinkpad);
if (GST_FLOW_IS_FATAL (ret)) {
gst_ogg_demux_send_eos (ogg);
GST_ELEMENT_ERROR (ogg, STREAM, STOPPED,
("stream stopped, reason %d", ret),
("stream stopped, reason %d", ret));
}
return;
}
}
static void