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ext/amrnb/amrnbparse.c: Fix pull mode operation some more: send newsegment event before sending data; handle EOS and ...

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Original commit message from CVS:
* ext/amrnb/amrnbparse.c: (gst_amrnbparse_get_type),
(gst_amrnbparse_class_init), (gst_amrnbparse_init),
(gst_amrnbparse_pull_header), (gst_amrnbparse_loop):
Fix pull mode operation some more: send newsegment event before
sending data; handle EOS and fatal flow returns a bit better; don't
leak buffers in some cases. Misc. minor cleanups. Fixes #431707.
This commit is contained in:
Tim-Philipp Müller 2007-04-22 22:41:20 +00:00
parent 6197c64106
commit 8f73fe167e
2 changed files with 60 additions and 23 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2007-04-22 Tim-Philipp Müller <tim at centricular dot net>
* ext/amrnb/amrnbparse.c: (gst_amrnbparse_get_type),
(gst_amrnbparse_class_init), (gst_amrnbparse_init),
(gst_amrnbparse_pull_header), (gst_amrnbparse_loop):
Fix pull mode operation some more: send newsegment event before
sending data; handle EOS and fatal flow returns a bit better; don't
leak buffers in some cases. Misc. minor cleanups. Fixes #431707.
2007-04-20 Tim-Philipp Müller <tim at centricular dot net>
* gst/asfdemux/Makefile.am:

74
ext/amrnb/amrnbparse.c
View file

@ -83,6 +83,9 @@ gst_amrnbparse_get_type (void)
amrnbparse_type = g_type_register_static (GST_TYPE_ELEMENT,
"GstAmrnbParse", &amrnbparse_info, 0);
GST_DEBUG_CATEGORY_INIT (amrnbparse_debug,
"amrnbparse", 0, "AMR-NB stream parsing");
}
return amrnbparse_type;
@ -115,9 +118,6 @@ gst_amrnbparse_class_init (GstAmrnbParseClass * klass)
parent_class = g_type_class_peek_parent (klass);
element_class->change_state = gst_amrnbparse_state_change;
GST_DEBUG_CATEGORY_INIT (amrnbparse_debug,
"amrnbparse", 0, "AMR-NB stream parsing");
}
static void
@ -125,8 +125,7 @@ gst_amrnbparse_init (GstAmrnbParse * amrnbparse)
{
/* create the sink pad */
amrnbparse->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
gst_pad_new_from_static_template (&sink_template, "sink");
gst_pad_set_chain_function (amrnbparse->sinkpad,
GST_DEBUG_FUNCPTR (gst_amrnbparse_chain));
gst_pad_set_event_function (amrnbparse->sinkpad,
@ -138,13 +137,12 @@ gst_amrnbparse_init (GstAmrnbParse * amrnbparse)
gst_element_add_pad (GST_ELEMENT (amrnbparse), amrnbparse->sinkpad);
/* create the src pad */
amrnbparse->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
amrnbparse->srcpad = gst_pad_new_from_static_template (&src_template, "src");
gst_pad_set_query_function (amrnbparse->srcpad,
GST_DEBUG_FUNCPTR (gst_amrnbparse_query));
gst_pad_set_query_type_function (amrnbparse->srcpad,
GST_DEBUG_FUNCPTR (gst_amrnbparse_querytypes));
gst_pad_use_fixed_caps (amrnbparse->srcpad);
gst_element_add_pad (GST_ELEMENT (amrnbparse), amrnbparse->srcpad);
amrnbparse->adapter = gst_adapter_new ();
@ -369,15 +367,14 @@ done:
}
static gboolean
gst_amrnbparse_read_header (GstAmrnbParse * amrnbparse)
gst_amrnbparse_pull_header (GstAmrnbParse * amrnbparse)
{
GstBuffer *buffer;
GstFlowReturn ret;
guint8 *data;
gint size;
ret =
gst_pad_pull_range (amrnbparse->sinkpad, amrnbparse->offset, 6, &buffer);
ret = gst_pad_pull_range (amrnbparse->sinkpad, 0, 6, &buffer);
if (ret != GST_FLOW_OK)
return FALSE;
@ -389,8 +386,9 @@ gst_amrnbparse_read_header (GstAmrnbParse * amrnbparse)
if (memcmp (data, "#!AMR\n", 6))
goto no_header;
amrnbparse->offset += 6;
gst_buffer_unref (buffer);
amrnbparse->offset = 6;
return TRUE;
not_enough:
@ -421,27 +419,36 @@ gst_amrnbparse_loop (GstPad * pad)
/* init */
if (amrnbparse->need_header) {
gboolean got_header;
got_header = gst_amrnbparse_read_header (amrnbparse);
if (!got_header) {
if (!gst_amrnbparse_pull_header (amrnbparse)) {
GST_ELEMENT_ERROR (amrnbparse, STREAM, WRONG_TYPE, (NULL), (NULL));
GST_LOG_OBJECT (amrnbparse, "could not read header");
goto need_pause;
}
GST_DEBUG_OBJECT (amrnbparse, "Sending newsegment event");
gst_pad_push_event (amrnbparse->srcpad,
gst_event_new_new_segment_full (FALSE, 1.0, 1.0,
GST_FORMAT_TIME, 0, -1, 0));
amrnbparse->need_header = FALSE;
}
ret =
gst_pad_pull_range (amrnbparse->sinkpad, amrnbparse->offset, 1, &buffer);
if (ret != GST_FLOW_OK)
if (ret == GST_FLOW_UNEXPECTED)
goto eos;
else if (ret != GST_FLOW_OK)
goto need_pause;
data = GST_BUFFER_DATA (buffer);
size = GST_BUFFER_SIZE (buffer);
/* EOS */
if (size < 1)
if (size < 1) {
gst_buffer_unref (buffer);
goto eos;
}
/* get size */
mode = (data[0] >> 3) & 0x0F;
@ -452,22 +459,43 @@ gst_amrnbparse_loop (GstPad * pad)
ret =
gst_pad_pull_range (amrnbparse->sinkpad, amrnbparse->offset, block,
&buffer);
if (ret != GST_FLOW_OK)
if (ret == GST_FLOW_UNEXPECTED)
goto eos;
else if (ret != GST_FLOW_OK)
goto need_pause;
if (GST_BUFFER_SIZE (buffer) < block) {
gst_buffer_unref (buffer);
goto eos;
}
amrnbparse->offset += block;
/* output */
buffer = gst_buffer_make_metadata_writable (buffer);
GST_BUFFER_DURATION (buffer) = GST_SECOND * 160 / 8000;
GST_BUFFER_TIMESTAMP (buffer) = amrnbparse->ts;
amrnbparse->ts += GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (buffer,
(GstCaps *) gst_pad_get_pad_template_caps (amrnbparse->srcpad));
GST_DEBUG ("Pushing %d bytes of data", block);
GST_DEBUG_OBJECT (amrnbparse, "Pushing %2d bytes, ts=%" GST_TIME_FORMAT,
block, GST_TIME_ARGS (amrnbparse->ts));
ret = gst_pad_push (amrnbparse->srcpad, buffer);
if (ret != GST_FLOW_OK)
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (amrnbparse, "Flow: %s", gst_flow_get_name (ret));
if (GST_FLOW_IS_FATAL (ret)) {
GST_ELEMENT_ERROR (amrnbparse, STREAM, FAILED, (NULL), /* _("Internal data flow error.")), */
("streaming task paused, reason: %s", gst_flow_get_name (ret)));
gst_pad_push_event (pad, gst_event_new_eos ());
}
goto need_pause;
}
amrnbparse->ts += GST_BUFFER_DURATION (buffer);
return;
@ -479,7 +507,7 @@ need_pause:
}
eos:
{
GST_LOG_OBJECT (amrnbparse, "pausing task");
GST_LOG_OBJECT (amrnbparse, "pausing task (eos)");
gst_pad_push_event (amrnbparse->srcpad, gst_event_new_eos ());
gst_pad_pause_task (pad);
return;