From 5929ad4ac9816f4431aa0aceef4016ac29194083 Mon Sep 17 00:00:00 2001 From: Wim Taymans Date: Wed, 2 Aug 2006 16:56:19 +0000 Subject: gst/gdp/gstgdpdepay.c: Disable seeking. Original commit message from CVS: * gst/gdp/gstgdpdepay.c: (gst_gdp_depay_init), (gst_gdp_depay_finalize), (gst_gdp_depay_sink_event), (gst_gdp_depay_src_event), (gst_gdp_depay_chain), (gst_gdp_depay_change_state): Disable seeking. Small cleanups. Clear adapter on disconts. Clear caps when going to READY instead of NULL * gst/gdp/gstgdppay.c: (gst_gdp_pay_class_init), (gst_gdp_pay_init), (gst_gdp_pay_finalize), (gst_gdp_pay_reset), (gst_gdp_buffer_from_caps), (gst_gdp_pay_buffer_from_buffer), (gst_gdp_buffer_from_event), (gst_gdp_pay_reset_streamheader), (gst_gdp_queue_buffer), (gst_gdp_pay_chain), (gst_gdp_pay_sink_event), (gst_gdp_pay_src_event), (gst_gdp_pay_change_state): * gst/gdp/gstgdppay.h: Reset payloader when going to READY. Fix leaked buffers in ->queue on push errors. Disable seeking. Code cleanups. Create packetizer in _init, free in _finalize. --- gst/gdp/gstgdpdepay.c | 269 ++++++++++++++++++++++++++++--------------- gst/gdp/gstgdppay.c | 307 +++++++++++++++++++++++++++++++++----------------- gst/gdp/gstgdppay.h | 1 + 3 files changed, 379 insertions(+), 198 deletions(-) (limited to 'gst/gdp') diff --git a/gst/gdp/gstgdpdepay.c b/gst/gdp/gstgdpdepay.c index 4b0266fa..ba391c40 100644 --- a/gst/gdp/gstgdpdepay.c +++ b/gst/gdp/gstgdpdepay.c @@ -56,7 +56,6 @@ GST_ELEMENT_DETAILS ("GDP Depayloader", enum { PROP_0, - /* FILL ME */ }; static GstStaticPadTemplate gdp_depay_sink_template = @@ -82,6 +81,8 @@ GST_BOILERPLATE_FULL (GstGDPDepay, gst_gdp_depay, GstElement, GST_TYPE_ELEMENT, _do_init); static gboolean gst_gdp_depay_sink_event (GstPad * pad, GstEvent * event); +static gboolean gst_gdp_depay_src_event (GstPad * pad, GstEvent * event); + static GstFlowReturn gst_gdp_depay_chain (GstPad * pad, GstBuffer * buffer); static GstStateChangeReturn gst_gdp_depay_change_state (GstElement * @@ -129,6 +130,8 @@ gst_gdp_depay_init (GstGDPDepay * gdpdepay, GstGDPDepayClass * g_class) gdpdepay->srcpad = gst_pad_new_from_static_template (&gdp_depay_src_template, "src"); + gst_pad_set_event_function (gdpdepay->srcpad, + GST_DEBUG_FUNCPTR (gst_gdp_depay_src_event)); /* our caps will always be decided by the incoming GDP caps buffers */ gst_pad_use_fixed_caps (gdpdepay->srcpad); gst_element_add_pad (GST_ELEMENT (gdpdepay), gdpdepay->srcpad); @@ -144,19 +147,13 @@ gst_gdp_depay_finalize (GObject * gobject) this = GST_GDP_DEPAY (gobject); if (this->caps) gst_caps_unref (this->caps); - if (this->header) - g_free (this->header); + g_free (this->header); gst_adapter_clear (this->adapter); g_object_unref (this->adapter); GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject)); } -/* we ignore most events because the only events we want to output are those - * found in the gdp data stream. - * An exception is the EOS event, if we get that on the sinkpad, we certainly - * are not going to produce more data. - */ static gboolean gst_gdp_depay_sink_event (GstPad * pad, GstEvent * event) { @@ -166,10 +163,20 @@ gst_gdp_depay_sink_event (GstPad * pad, GstEvent * event) this = GST_GDP_DEPAY (gst_pad_get_parent (pad)); switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_FLUSH_START: + case GST_EVENT_FLUSH_STOP: + /* forward flush start and stop */ + res = gst_pad_push_event (this->srcpad, event); + break; case GST_EVENT_EOS: + /* after EOS, we don't expect to output anything anymore */ res = gst_pad_push_event (this->srcpad, event); break; + case GST_EVENT_NEWSEGMENT: + case GST_EVENT_TAG: + case GST_EVENT_BUFFERSIZE: default: + /* we unref most events as we take them from the datastream */ gst_event_unref (event); break; } @@ -178,6 +185,32 @@ gst_gdp_depay_sink_event (GstPad * pad, GstEvent * event) return res; } +static gboolean +gst_gdp_depay_src_event (GstPad * pad, GstEvent * event) +{ + GstGDPDepay *this; + gboolean res = TRUE; + + this = GST_GDP_DEPAY (gst_pad_get_parent (pad)); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_SEEK: + /* we refuse seek for now. */ + gst_event_unref (event); + res = FALSE; + break; + case GST_EVENT_QOS: + case GST_EVENT_NAVIGATION: + default: + /* everything else is passed */ + res = gst_pad_push_event (this->sinkpad, event); + break; + } + gst_object_unref (this); + + return res; +} + static GstFlowReturn gst_gdp_depay_chain (GstPad * pad, GstBuffer * buffer) { @@ -186,108 +219,124 @@ gst_gdp_depay_chain (GstPad * pad, GstBuffer * buffer) GstCaps *caps; GstBuffer *buf; GstEvent *event; - guint8 *header = NULL; - guint8 *payload = NULL; guint available; - gboolean running = TRUE; this = GST_GDP_DEPAY (gst_pad_get_parent (pad)); + /* On DISCONT, get rid of accumulated data. We assume a buffer after the + * DISCONT contains (part of) a new valid header, if not we error because we + * lost sync */ + if (GST_BUFFER_IS_DISCONT (buffer)) { + gst_adapter_clear (this->adapter); + this->state = GST_GDP_DEPAY_STATE_HEADER; + } gst_adapter_push (this->adapter, buffer); - while (running) { + while (TRUE) { switch (this->state) { case GST_GDP_DEPAY_STATE_HEADER: + { + guint8 *header; + + /* collect a complete header, validate and store the header. Figure out + * the payload length and switch to the PAYLOAD state */ available = gst_adapter_available (this->adapter); - if (available < GST_DP_HEADER_LENGTH) { - running = FALSE; - break; - } + if (available < GST_DP_HEADER_LENGTH) + goto done; - if (this->header) - g_free (this->header); GST_LOG_OBJECT (this, "reading GDP header from adapter"); header = gst_adapter_take (this->adapter, GST_DP_HEADER_LENGTH); - if (!gst_dp_validate_header (GST_DP_HEADER_LENGTH, header)) + if (!gst_dp_validate_header (GST_DP_HEADER_LENGTH, header)) { + g_free (header); goto header_validate_error; + } + /* store types and payload length. Also store the header, which we need + * to make the payload. */ this->payload_length = gst_dp_header_payload_length (header); this->payload_type = gst_dp_header_payload_type (header); + /* free previous header and store new one. */ + g_free (this->header); this->header = header; + GST_LOG_OBJECT (this, "read GDP header, payload size %d, switching to state PAYLOAD", this->payload_length); this->state = GST_GDP_DEPAY_STATE_PAYLOAD; break; - + } case GST_GDP_DEPAY_STATE_PAYLOAD: + { + /* in this state we wait for all the payload data to be available in the + * adapter. Then we switch to the state where we actually process the + * payload. */ available = gst_adapter_available (this->adapter); - if (available < this->payload_length) { - running = FALSE; - break; - } + if (available < this->payload_length) + goto done; /* change state based on type */ - if (this->payload_type == GST_DP_PAYLOAD_BUFFER) { - GST_LOG_OBJECT (this, "switching to state BUFFER"); - this->state = GST_GDP_DEPAY_STATE_BUFFER; - } else if (this->payload_type == GST_DP_PAYLOAD_CAPS) { - GST_LOG_OBJECT (this, "switching to state CAPS"); - this->state = GST_GDP_DEPAY_STATE_CAPS; - } else if (this->payload_type >= GST_DP_PAYLOAD_EVENT_NONE) { - GST_LOG_OBJECT (this, "switching to state EVENT"); - this->state = GST_GDP_DEPAY_STATE_EVENT; - } else - goto wrong_type; + switch (this->payload_type) { + case GST_DP_PAYLOAD_BUFFER: + GST_LOG_OBJECT (this, "switching to state BUFFER"); + this->state = GST_GDP_DEPAY_STATE_BUFFER; + break; + case GST_DP_PAYLOAD_CAPS: + GST_LOG_OBJECT (this, "switching to state CAPS"); + this->state = GST_GDP_DEPAY_STATE_CAPS; + break; + case GST_DP_PAYLOAD_EVENT_NONE: + GST_LOG_OBJECT (this, "switching to state EVENT"); + this->state = GST_GDP_DEPAY_STATE_EVENT; + break; + default: + goto wrong_type; + } break; - + } case GST_GDP_DEPAY_STATE_BUFFER: - if (!this->caps) { - GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), - ("Received a buffer without first receiving caps")); - ret = GST_FLOW_NOT_NEGOTIATED; - goto done; - } + { + + /* if we receive a buffer without caps first, we error out */ + if (!this->caps) + goto no_caps; GST_LOG_OBJECT (this, "reading GDP buffer from adapter"); buf = gst_dp_buffer_from_header (GST_DP_HEADER_LENGTH, this->header); - if (!buf) { - GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), - ("could not create buffer from GDP packet")); - ret = GST_FLOW_ERROR; - goto done; - } + if (!buf) + goto buffer_failed; - payload = gst_adapter_take (this->adapter, this->payload_length); - memcpy (GST_BUFFER_DATA (buf), payload, this->payload_length); - g_free (payload); - payload = NULL; + /* now take the payload if there is any */ + if (this->payload_length > 0) { + guint8 *payload; + + payload = gst_adapter_take (this->adapter, this->payload_length); + memcpy (GST_BUFFER_DATA (buf), payload, this->payload_length); + g_free (payload); + } + /* set caps and push */ gst_buffer_set_caps (buf, this->caps); ret = gst_pad_push (this->srcpad, buf); - if (ret != GST_FLOW_OK) { - GST_WARNING_OBJECT (this, "pushing depayloaded buffer returned %d", - ret); - goto done; - } + if (ret != GST_FLOW_OK) + goto push_error; GST_LOG_OBJECT (this, "switching to state HEADER"); this->state = GST_GDP_DEPAY_STATE_HEADER; break; - + } case GST_GDP_DEPAY_STATE_CAPS: + { + guint8 *payload; + + /* take the payload of the caps */ GST_LOG_OBJECT (this, "reading GDP caps from adapter"); payload = gst_adapter_take (this->adapter, this->payload_length); caps = gst_dp_caps_from_packet (GST_DP_HEADER_LENGTH, this->header, payload); g_free (payload); - payload = NULL; - if (!caps) { - GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), - ("could not create caps from GDP packet")); - ret = GST_FLOW_ERROR; - goto done; - } + if (!caps) + goto caps_failed; + GST_DEBUG_OBJECT (this, "read caps %" GST_PTR_FORMAT, caps); gst_caps_replace (&(this->caps), caps); gst_pad_set_caps (this->srcpad, caps); @@ -297,24 +346,24 @@ gst_gdp_depay_chain (GstPad * pad, GstBuffer * buffer) GST_LOG_OBJECT (this, "switching to state HEADER"); this->state = GST_GDP_DEPAY_STATE_HEADER; break; - + } case GST_GDP_DEPAY_STATE_EVENT: + { + guint8 *payload; + GST_LOG_OBJECT (this, "reading GDP event from adapter"); + /* adapter doesn't like 0 length payload */ if (this->payload_length > 0) payload = gst_adapter_take (this->adapter, this->payload_length); + else + payload = NULL; event = gst_dp_event_from_packet (GST_DP_HEADER_LENGTH, this->header, payload); - if (payload) { - g_free (payload); - payload = NULL; - } - if (!event) { - GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), - ("could not create event from GDP packet")); - ret = GST_FLOW_ERROR; - goto done; - } + g_free (payload); + if (!event) + goto event_failed; + GST_DEBUG_OBJECT (this, "sending deserialized event %p of type %s", event, gst_event_type_get_name (event->type)); gst_pad_push_event (this->srcpad, event); @@ -322,27 +371,62 @@ gst_gdp_depay_chain (GstPad * pad, GstBuffer * buffer) GST_LOG_OBJECT (this, "switching to state HEADER"); this->state = GST_GDP_DEPAY_STATE_HEADER; break; + } } } - goto done; - -header_validate_error: - GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), - ("GDP packet header does not validate")); - g_free (header); - ret = GST_FLOW_ERROR; - goto done; - -wrong_type: - GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), - ("GDP packet header is of wrong type")); - g_free (header); - ret = GST_FLOW_ERROR; - goto done; done: gst_object_unref (this); return ret; + + /* ERRORS */ +header_validate_error: + { + GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), + ("GDP packet header does not validate")); + ret = GST_FLOW_ERROR; + goto done; + } +wrong_type: + { + GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), + ("GDP packet header is of wrong type")); + ret = GST_FLOW_ERROR; + goto done; + } +no_caps: + { + GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), + ("Received a buffer without first receiving caps")); + ret = GST_FLOW_NOT_NEGOTIATED; + goto done; + } +buffer_failed: + { + GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), + ("could not create buffer from GDP packet")); + ret = GST_FLOW_ERROR; + goto done; + } +push_error: + { + GST_WARNING_OBJECT (this, "pushing depayloaded buffer returned %d", ret); + goto done; + } +caps_failed: + { + GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), + ("could not create caps from GDP packet")); + ret = GST_FLOW_ERROR; + goto done; + } +event_failed: + { + GST_ELEMENT_ERROR (this, STREAM, DECODE, (NULL), + ("could not create event from GDP packet")); + ret = GST_FLOW_ERROR; + goto done; + } } static GstStateChangeReturn @@ -354,7 +438,7 @@ gst_gdp_depay_change_state (GstElement * element, GstStateChange transition) ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); switch (transition) { - case GST_STATE_CHANGE_READY_TO_NULL: + case GST_STATE_CHANGE_PAUSED_TO_READY: if (this->caps) { gst_caps_unref (this->caps); this->caps = NULL; @@ -363,7 +447,6 @@ gst_gdp_depay_change_state (GstElement * element, GstStateChange transition) default: break; } - return ret; } diff --git a/gst/gdp/gstgdppay.c b/gst/gdp/gstgdppay.c index 26eaab6e..e164b503 100644 --- a/gst/gdp/gstgdppay.c +++ b/gst/gdp/gstgdppay.c @@ -85,8 +85,12 @@ enum GST_BOILERPLATE_FULL (GstGDPPay, gst_gdp_pay, GstElement, GST_TYPE_ELEMENT, _do_init); +static void gst_gdp_pay_reset (GstGDPPay * this); static GstFlowReturn gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer); + +static gboolean gst_gdp_pay_src_event (GstPad * pad, GstEvent * event); static gboolean gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event); + static GstStateChangeReturn gst_gdp_pay_change_state (GstElement * element, GstStateChange transition); @@ -95,7 +99,7 @@ static void gst_gdp_pay_set_property (GObject * object, guint prop_id, static void gst_gdp_pay_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); -static void gst_gdp_pay_dispose (GObject * gobject); +static void gst_gdp_pay_finalize (GObject * gobject); static void gst_gdp_pay_base_init (gpointer g_class) @@ -121,8 +125,7 @@ gst_gdp_pay_class_init (GstGDPPayClass * klass) gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_gdp_pay_set_property); gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_gdp_pay_get_property); - gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_gdp_pay_dispose); - gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_gdp_pay_change_state); + gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_gdp_pay_finalize); g_object_class_install_property (gobject_class, PROP_CRC_HEADER, g_param_spec_boolean ("crc-header", "CRC Header", @@ -136,6 +139,8 @@ gst_gdp_pay_class_init (GstGDPPayClass * klass) g_param_spec_enum ("version", "Version", "Version of the GStreamer Data Protocol", GST_TYPE_DP_VERSION, DEFAULT_VERSION, G_PARAM_READWRITE)); + + gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_gdp_pay_change_state); } static void @@ -151,30 +156,61 @@ gst_gdp_pay_init (GstGDPPay * gdppay, GstGDPPayClass * g_class) gdppay->srcpad = gst_pad_new_from_static_template (&gdp_pay_src_template, "src"); + gst_pad_set_event_function (gdppay->srcpad, + GST_DEBUG_FUNCPTR (gst_gdp_pay_src_event)); gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->srcpad); - gdppay->offset = 0; - gdppay->crc_header = DEFAULT_CRC_HEADER; gdppay->crc_payload = DEFAULT_CRC_PAYLOAD; gdppay->header_flag = gdppay->crc_header | gdppay->crc_payload; gdppay->version = DEFAULT_VERSION; + gdppay->offset = 0; + + gdppay->packetizer = gst_dp_packetizer_new (gdppay->version); } static void -gst_gdp_pay_dispose (GObject * gobject) +gst_gdp_pay_finalize (GObject * gobject) { GstGDPPay *this = GST_GDP_PAY (gobject); + gst_gdp_pay_reset (this); + gst_dp_packetizer_free (this->packetizer); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject)); +} + +static void +gst_gdp_pay_reset (GstGDPPay * this) +{ + /* clear the queued buffers */ + while (this->queue) { + GstBuffer *buffer; + + buffer = GST_BUFFER_CAST (this->queue->data); + GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer); + + /* delete buffer from queue now */ + this->queue = g_list_delete_link (this->queue, this->queue); + } + if (this->caps) { + gst_caps_unref (this->caps); + this->caps = NULL; + } if (this->caps_buf) { gst_buffer_unref (this->caps_buf); this->caps_buf = NULL; } + if (this->tag_buf) { + gst_buffer_unref (this->tag_buf); + this->tag_buf = NULL; + } if (this->new_segment_buf) { gst_buffer_unref (this->new_segment_buf); this->new_segment_buf = NULL; } - GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (gobject)); + this->sent_streamheader = FALSE; + this->offset = 0; } /* set OFFSET and OFFSET_END with running count */ @@ -195,10 +231,8 @@ gst_gdp_buffer_from_caps (GstGDPPay * this, GstCaps * caps) guint len; if (!this->packetizer->packet_from_caps (caps, this->header_flag, &len, - &header, &payload)) { - GST_WARNING_OBJECT (this, "could not create GDP header from caps"); - return NULL; - } + &header, &payload)) + goto packet_failed; GST_LOG_OBJECT (this, "creating GDP header and payload buffer from caps"); headerbuf = gst_buffer_new (); @@ -211,6 +245,13 @@ gst_gdp_buffer_from_caps (GstGDPPay * this, GstCaps * caps) GST_BUFFER_MALLOCDATA (payloadbuf) = payload; return gst_buffer_join (headerbuf, payloadbuf); + + /* ERRORS */ +packet_failed: + { + GST_WARNING_OBJECT (this, "could not create GDP header from caps"); + return NULL; + } } static GstBuffer * @@ -221,10 +262,8 @@ gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer) guint len; if (!this->packetizer->header_from_buffer (buffer, this->header_flag, &len, - &header)) { - GST_WARNING_OBJECT (this, "could not create GDP header from buffer"); - return NULL; - } + &header)) + goto no_buffer; GST_LOG_OBJECT (this, "creating GDP header and payload buffer from buffer"); headerbuf = gst_buffer_new (); @@ -233,7 +272,15 @@ gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer) /* we do not want to lose the ref on the incoming buffer */ gst_buffer_ref (buffer); + return gst_buffer_join (headerbuf, buffer); + + /* ERRORS */ +no_buffer: + { + GST_WARNING_OBJECT (this, "could not create GDP header from buffer"); + return NULL; + } } static GstBuffer * @@ -248,12 +295,8 @@ gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event) ret = this->packetizer->packet_from_event (event, this->header_flag, &len, &header, &payload); - - if (!ret) { - GST_WARNING_OBJECT (this, "could not create GDP header from event %s (%d)", - gst_event_type_get_name (event->type), event->type); - return NULL; - } + if (!ret) + goto no_event; GST_LOG_OBJECT (this, "creating GDP header and payload buffer from event"); headerbuf = gst_buffer_new (); @@ -266,6 +309,14 @@ gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event) GST_BUFFER_MALLOCDATA (payloadbuf) = payload; return gst_buffer_join (headerbuf, payloadbuf); + + /* ERRORS */ +no_event: + { + GST_WARNING_OBJECT (this, "could not create GDP header from event %s (%d)", + gst_event_type_get_name (event->type), event->type); + return NULL; + } } @@ -341,14 +392,13 @@ gst_gdp_pay_reset_streamheader (GstGDPPay * this) bufval = &g_array_index (buffers, GValue, i); buffer = g_value_peek_pointer (bufval); outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer); - if (outbuffer) { - g_value_init (&value, GST_TYPE_BUFFER); - gst_value_set_buffer (&value, outbuffer); - gst_value_array_append_value (&array, &value); - g_value_unset (&value); - } - /* FIXME: if one or more in this loop fail to produce an outbuffer, - * should we error out ? Once ? Every time ? */ + if (!outbuffer) + goto no_buffer; + + g_value_init (&value, GST_TYPE_BUFFER); + gst_value_set_buffer (&value, outbuffer); + gst_value_array_append_value (&array, &value); + g_value_unset (&value); } } @@ -406,38 +456,50 @@ gst_gdp_pay_reset_streamheader (GstGDPPay * this) this->sent_streamheader = TRUE; GST_DEBUG_OBJECT (this, "need to push %d queued buffers", g_list_length (this->queue)); - if (this->queue) { - GList *l; - - for (l = this->queue; l; l = g_list_next (l)) { - GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", l->data); - gst_buffer_set_caps (l->data, caps); - r = gst_pad_push (this->srcpad, l->data); - if (r != GST_FLOW_OK) { - GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r); - return r; - } + while (this->queue) { + GstBuffer *buffer; + + buffer = GST_BUFFER_CAST (this->queue->data); + GST_DEBUG_OBJECT (this, "Pushing queued GDP buffer %p", buffer); + + /* delete buffer from queue now */ + this->queue = g_list_delete_link (this->queue, this->queue); + + /* set caps en push */ + gst_buffer_set_caps (buffer, caps); + r = gst_pad_push (this->srcpad, buffer); + if (r != GST_FLOW_OK) { + GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r); + return r; } } - return r; + + /* ERRORS */ +no_buffer: + { + GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL), + ("failed to create GDP buffer from streamheader")); + return GST_FLOW_ERROR; + } } /* queue a buffer internally if we haven't sent streamheader buffers yet; - * otherwise, just push on */ + * otherwise, just push on, this takes ownership of the buffer. */ static GstFlowReturn gst_gdp_queue_buffer (GstGDPPay * this, GstBuffer * buffer) { if (this->sent_streamheader) { - GST_LOG_OBJECT (this, "Pushing GDP buffer %p", buffer); - GST_LOG_OBJECT (this, "set caps %" GST_PTR_FORMAT, this->caps); + GST_LOG_OBJECT (this, "Pushing GDP buffer %p, caps %" GST_PTR_FORMAT, + buffer, this->caps); return gst_pad_push (this->srcpad, buffer); } - /* store it on an internal queue */ + /* store it on an internal queue. buffer remains reffed. */ this->queue = g_list_append (this->queue, buffer); GST_DEBUG_OBJECT (this, "queued buffer %p, now %d buffers queued", buffer, g_list_length (this->queue)); + return GST_FLOW_OK; } @@ -466,12 +528,7 @@ gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer) if (!outbuffer) { GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL), ("Could not create GDP buffer from new segment event")); -/* - ret = GST_FLOW_ERROR; - goto done; -*/ } else { - gst_gdp_stamp_buffer (this, outbuffer); GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer); GST_BUFFER_DURATION (outbuffer) = 0; @@ -483,26 +540,16 @@ gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer) /* make sure we've received caps before */ caps = gst_buffer_get_caps (buffer); - if (!this->caps && !caps) { - GST_WARNING_OBJECT (this, "first received buffer does not have caps set"); - if (caps) - gst_caps_unref (caps); - ret = GST_FLOW_NOT_NEGOTIATED; - goto done; - } + if (!this->caps && !caps) + goto no_caps; /* if the caps have changed, process caps first */ if (caps && !gst_caps_is_equal (this->caps, caps)) { GST_LOG_OBJECT (this, "caps changed to %p, %" GST_PTR_FORMAT, caps, caps); gst_caps_replace (&(this->caps), caps); outbuffer = gst_gdp_buffer_from_caps (this, caps); - if (!outbuffer) { - GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL), - ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps)); - gst_caps_unref (caps); - ret = GST_FLOW_ERROR; - goto done; - } + if (!outbuffer) + goto no_caps_buffer; gst_gdp_stamp_buffer (this, outbuffer); GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer); @@ -515,12 +562,8 @@ gst_gdp_pay_chain (GstPad * pad, GstBuffer * buffer) /* create a GDP header packet, * then create a GST buffer of the header packet and the buffer contents */ outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer); - if (!outbuffer) { - GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL), - ("Could not create GDP buffer from buffer")); - ret = GST_FLOW_ERROR; - goto done; - } + if (!outbuffer) + goto no_buffer; gst_gdp_stamp_buffer (this, outbuffer); GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer); @@ -532,6 +575,34 @@ done: gst_buffer_unref (buffer); gst_object_unref (this); return ret; + + /* ERRORS */ +no_caps: + { + /* when returning a fatal error as a GstFlowReturn we must post an error + * message */ + GST_ELEMENT_ERROR (this, STREAM, FORMAT, (NULL), + ("first received buffer does not have caps set")); + if (caps) + gst_caps_unref (caps); + ret = GST_FLOW_NOT_NEGOTIATED; + goto done; + } +no_caps_buffer: + { + GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL), + ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps)); + gst_caps_unref (caps); + ret = GST_FLOW_ERROR; + goto done; + } +no_buffer: + { + GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL), + ("Could not create GDP buffer from buffer")); + ret = GST_FLOW_ERROR; + goto done; + } } static gboolean @@ -547,13 +618,9 @@ gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event) /* now turn the event into a buffer */ outbuffer = gst_gdp_buffer_from_event (this, event); - if (!outbuffer) { - GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL), - ("Could not create GDP buffer from received event (type %s)", - gst_event_type_get_name (event->type))); - ret = FALSE; - goto done; - } + if (!outbuffer) + goto no_outbuffer; + gst_gdp_stamp_buffer (this, outbuffer); GST_BUFFER_TIMESTAMP (outbuffer) = GST_EVENT_TIMESTAMP (event); GST_BUFFER_DURATION (outbuffer) = 0; @@ -562,47 +629,87 @@ gst_gdp_pay_sink_event (GstPad * pad, GstEvent * event) * and not send it on */ switch (GST_EVENT_TYPE (event)) { case GST_EVENT_NEWSEGMENT: - GST_DEBUG_OBJECT (this, "received new_segment event"); - if (this->new_segment_buf) { - gst_buffer_unref (this->new_segment_buf); - } GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf", outbuffer); + + if (this->new_segment_buf) + gst_buffer_unref (this->new_segment_buf); this->new_segment_buf = outbuffer; + gst_gdp_pay_reset_streamheader (this); break; case GST_EVENT_TAG: - GST_DEBUG_OBJECT (this, "received tag event"); - if (this->tag_buf) { - gst_buffer_unref (this->tag_buf); - } GST_DEBUG_OBJECT (this, "Storing buffer %p as tag_buf", outbuffer); + + if (this->tag_buf) + gst_buffer_unref (this->tag_buf); this->tag_buf = outbuffer; + gst_gdp_pay_reset_streamheader (this); break; default: GST_DEBUG_OBJECT (this, "queuing GDP buffer %p of event %p", outbuffer, event); flowret = gst_gdp_queue_buffer (this, outbuffer); - if (flowret != GST_FLOW_OK) { - GST_WARNING_OBJECT (this, "queueing GDP event buffer returned %d", - flowret); - ret = FALSE; - goto done; - } + if (flowret != GST_FLOW_OK) + goto push_error; break; } /* if we have EOS, we should send on EOS ourselves */ if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) { GST_DEBUG_OBJECT (this, "Sending on EOS event %p", event); - return gst_pad_push_event (this->srcpad, event); - }; + /* ref, we unref later again */ + ret = gst_pad_push_event (this->srcpad, gst_event_ref (event)); + } done: - gst_object_unref (this); gst_event_unref (event); + gst_object_unref (this); + return ret; + + /* ERRORS */ +no_outbuffer: + { + GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL), + ("Could not create GDP buffer from received event (type %s)", + gst_event_type_get_name (event->type))); + ret = FALSE; + goto done; + } +push_error: + { + GST_WARNING_OBJECT (this, "queueing GDP event buffer returned %d", flowret); + ret = FALSE; + goto done; + } +} + +static gboolean +gst_gdp_pay_src_event (GstPad * pad, GstEvent * event) +{ + GstGDPPay *this; + gboolean res = TRUE; + + this = GST_GDP_PAY (gst_pad_get_parent (pad)); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_SEEK: + /* we refuse seek for now. */ + gst_event_unref (event); + res = FALSE; + break; + case GST_EVENT_QOS: + case GST_EVENT_NAVIGATION: + default: + /* everything else is passed */ + res = gst_pad_push_event (this->sinkpad, event); + break; + } + gst_object_unref (this); + + return res; } static void @@ -667,7 +774,6 @@ gst_gdp_pay_change_state (GstElement * element, GstStateChange transition) switch (transition) { case GST_STATE_CHANGE_READY_TO_PAUSED: - this->packetizer = gst_dp_packetizer_new (this->version); break; default: break; @@ -677,16 +783,7 @@ gst_gdp_pay_change_state (GstElement * element, GstStateChange transition) switch (transition) { case GST_STATE_CHANGE_PAUSED_TO_READY: - if (this->packetizer) { - gst_dp_packetizer_free (this->packetizer); - this->packetizer = NULL; - } - break; - case GST_STATE_CHANGE_READY_TO_NULL: - if (this->caps) { - gst_caps_unref (this->caps); - this->caps = NULL; - } + gst_gdp_pay_reset (this); break; default: break; diff --git a/gst/gdp/gstgdppay.h b/gst/gdp/gstgdppay.h index 5bde0829..22bbcd29 100644 --- a/gst/gdp/gstgdppay.h +++ b/gst/gdp/gstgdppay.h @@ -41,6 +41,7 @@ typedef struct _GstGDPPayClass GstGDPPayClass; struct _GstGDPPay { GstElement element; + GstPad *sinkpad; GstPad *srcpad; -- cgit v1.2.1