| /* GStreamer |
| * Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org> |
| * Copyright (C) 2014 Tim-Philipp Müller <tim centricular com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| /** |
| * SECTION:element-gdppay |
| * @see_also: gdpdepay |
| * |
| * This element payloads GStreamer buffers and events using the |
| * GStreamer Data Protocol. |
| * |
| * <refsect2> |
| * |[ |
| * gst-launch-1.0 -v -m videotestsrc num-buffers=50 ! gdppay ! filesink location=test.gdp |
| * ]| This pipeline creates a serialized video stream that can be played back |
| * with the example shown in gdpdepay. |
| * </refsect2> |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include "dataprotocol.h" |
| |
| #include "gstgdppay.h" |
| |
| static GstStaticPadTemplate gdp_pay_sink_template = |
| GST_STATIC_PAD_TEMPLATE ("sink", |
| GST_PAD_SINK, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS_ANY); |
| |
| static GstStaticPadTemplate gdp_pay_src_template = |
| GST_STATIC_PAD_TEMPLATE ("src", |
| GST_PAD_SRC, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS ("application/x-gdp")); |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_gdp_pay_debug); |
| #define GST_CAT_DEFAULT gst_gdp_pay_debug |
| |
| #define DEFAULT_CRC_HEADER TRUE |
| #define DEFAULT_CRC_PAYLOAD FALSE |
| |
| enum |
| { |
| PROP_0, |
| PROP_CRC_HEADER, |
| PROP_CRC_PAYLOAD |
| }; |
| |
| #define _do_init \ |
| GST_DEBUG_CATEGORY_INIT (gst_gdp_pay_debug, "gdppay", 0, \ |
| "GDP payloader"); |
| #define gst_gdp_pay_parent_class parent_class |
| G_DEFINE_TYPE_WITH_CODE (GstGDPPay, gst_gdp_pay, GST_TYPE_ELEMENT, _do_init); |
| |
| static void gst_gdp_pay_reset (GstGDPPay * this); |
| |
| static GstFlowReturn gst_gdp_pay_chain (GstPad * pad, GstObject * parent, |
| GstBuffer * buffer); |
| static gboolean gst_gdp_pay_src_event (GstPad * pad, GstObject * parent, |
| GstEvent * event); |
| static gboolean gst_gdp_pay_sink_event (GstPad * pad, GstObject * parent, |
| GstEvent * event); |
| |
| static GstStateChangeReturn gst_gdp_pay_change_state (GstElement * |
| element, GstStateChange transition); |
| |
| static void gst_gdp_pay_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_gdp_pay_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| |
| static void gst_gdp_pay_finalize (GObject * gobject); |
| |
| static void |
| gst_gdp_pay_class_init (GstGDPPayClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstElementClass *gstelement_class; |
| |
| gobject_class = (GObjectClass *) klass; |
| gstelement_class = (GstElementClass *) klass; |
| |
| gobject_class->set_property = gst_gdp_pay_set_property; |
| gobject_class->get_property = gst_gdp_pay_get_property; |
| gobject_class->finalize = gst_gdp_pay_finalize; |
| |
| g_object_class_install_property (gobject_class, PROP_CRC_HEADER, |
| g_param_spec_boolean ("crc-header", "CRC Header", |
| "Calculate and store a CRC checksum on the header", |
| DEFAULT_CRC_HEADER, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| g_object_class_install_property (gobject_class, PROP_CRC_PAYLOAD, |
| g_param_spec_boolean ("crc-payload", "CRC Payload", |
| "Calculate and store a CRC checksum on the payload", |
| DEFAULT_CRC_PAYLOAD, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| gst_element_class_set_static_metadata (gstelement_class, |
| "GDP Payloader", "GDP/Payloader", |
| "Payloads GStreamer Data Protocol buffers", |
| "Thomas Vander Stichele <thomas at apestaart dot org>"); |
| |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&gdp_pay_sink_template)); |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&gdp_pay_src_template)); |
| |
| gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_gdp_pay_change_state); |
| } |
| |
| static void |
| gst_gdp_pay_init (GstGDPPay * gdppay) |
| { |
| gdppay->sinkpad = |
| gst_pad_new_from_static_template (&gdp_pay_sink_template, "sink"); |
| gst_pad_set_chain_function (gdppay->sinkpad, |
| GST_DEBUG_FUNCPTR (gst_gdp_pay_chain)); |
| gst_pad_set_event_function (gdppay->sinkpad, |
| GST_DEBUG_FUNCPTR (gst_gdp_pay_sink_event)); |
| gst_element_add_pad (GST_ELEMENT (gdppay), gdppay->sinkpad); |
| |
| 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->crc_header = DEFAULT_CRC_HEADER; |
| gdppay->crc_payload = DEFAULT_CRC_PAYLOAD; |
| gdppay->header_flag = gdppay->crc_header | gdppay->crc_payload; |
| gdppay->offset = 0; |
| } |
| |
| static void |
| gst_gdp_pay_finalize (GObject * gobject) |
| { |
| GstGDPPay *this = GST_GDP_PAY (gobject); |
| |
| gst_gdp_pay_reset (this); |
| |
| GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (gobject)); |
| } |
| |
| static void |
| gst_gdp_pay_reset (GstGDPPay * this) |
| { |
| GST_DEBUG_OBJECT (this, "Resetting GDP object"); |
| /* clear the queued buffers */ |
| while (this->queue) { |
| GstBuffer *buffer; |
| |
| buffer = GST_BUFFER_CAST (this->queue->data); |
| |
| /* delete buffer from queue now */ |
| this->queue = g_list_delete_link (this->queue, this->queue); |
| |
| gst_buffer_unref (buffer); |
| } |
| if (this->caps) { |
| gst_caps_unref (this->caps); |
| this->caps = NULL; |
| } |
| this->have_caps = FALSE; |
| this->have_segment = FALSE; |
| this->have_streamstartid = FALSE; |
| this->sent_streamheader = FALSE; |
| this->reset_streamheader = FALSE; |
| this->offset = 0; |
| } |
| |
| /* set OFFSET and OFFSET_END with running count */ |
| static void |
| gst_gdp_stamp_buffer (GstGDPPay * this, GstBuffer * buffer) |
| { |
| GST_BUFFER_OFFSET (buffer) = this->offset; |
| GST_BUFFER_OFFSET_END (buffer) = this->offset + gst_buffer_get_size (buffer); |
| this->offset = GST_BUFFER_OFFSET_END (buffer); |
| } |
| |
| static GstBuffer * |
| gst_gdp_buffer_from_caps (GstGDPPay * this, GstCaps * caps) |
| { |
| return gst_dp_payload_caps (caps, this->header_flag); |
| } |
| |
| static GstBuffer * |
| gst_gdp_pay_buffer_from_buffer (GstGDPPay * this, GstBuffer * buffer) |
| { |
| return gst_dp_payload_buffer (buffer, this->header_flag); |
| } |
| |
| static GstBuffer * |
| gst_gdp_buffer_from_event (GstGDPPay * this, GstEvent * event) |
| { |
| return gst_dp_payload_event (event, this->header_flag); |
| } |
| |
| static void |
| gdp_streamheader_array_append_take_buffer (GValue * array, GstBuffer * buf) |
| { |
| GValue value = { 0, }; |
| |
| g_value_init (&value, GST_TYPE_BUFFER); |
| gst_value_take_buffer (&value, buf); |
| gst_value_array_append_and_take_value (array, &value); |
| } |
| |
| typedef struct |
| { |
| GstGDPPay *gdppay; |
| GValue *array; |
| } GstGDPPayAndArray; |
| |
| static gboolean |
| gdp_streamheader_array_store_events (GstPad * pad, GstEvent ** event, |
| gpointer udata) |
| { |
| GstGDPPayAndArray *gdp_and_array = udata; |
| GstGDPPay *this = gdp_and_array->gdppay; |
| GValue *array = gdp_and_array->array; |
| GstBuffer *buf; |
| |
| /* Need to handle caps differently to keep compatibility with 1.0 */ |
| if (GST_EVENT_TYPE (*event) == GST_EVENT_CAPS) { |
| GstCaps *caps; |
| |
| gst_event_parse_caps (*event, &caps); |
| buf = gst_gdp_buffer_from_caps (this, caps); |
| } else { |
| buf = gst_gdp_buffer_from_event (this, *event); |
| } |
| |
| GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER); |
| gst_gdp_stamp_buffer (this, buf); |
| gdp_streamheader_array_append_take_buffer (array, buf); |
| |
| return TRUE; |
| } |
| |
| /* set our caps with streamheader, based on the latest newsegment and caps, |
| * and (possibly) GDP-serialized buffers of the streamheaders on the src pad */ |
| static GstFlowReturn |
| gst_gdp_pay_reset_streamheader (GstGDPPay * this) |
| { |
| GstCaps *caps; |
| GstStructure *structure; |
| GstFlowReturn r = GST_FLOW_OK; |
| GstGDPPayAndArray gdp_and_array; |
| |
| GValue array = { 0 }; |
| |
| gdp_and_array.gdppay = this; |
| gdp_and_array.array = &array; |
| |
| GST_DEBUG_OBJECT (this, "start"); |
| |
| if (!this->have_segment || !this->have_caps || !this->have_streamstartid) { |
| GST_DEBUG_OBJECT (this, "1.0, missing new_segment or caps or stream " |
| "start id, returning"); |
| return GST_FLOW_OK; |
| } |
| |
| /* put copies of the buffers in a fixed list |
| * Stamp the buffers with offset and offset_end as well. |
| * We do this here so the offsets match the order the buffers go out in */ |
| g_value_init (&array, GST_TYPE_ARRAY); |
| gst_pad_sticky_events_foreach (this->sinkpad, |
| gdp_streamheader_array_store_events, &gdp_and_array); |
| |
| /* we also need to add GDP serializations of the streamheaders of the |
| * incoming caps */ |
| structure = gst_caps_get_structure (this->caps, 0); |
| if (gst_structure_has_field (structure, "streamheader")) { |
| const GValue *sh; |
| GstBuffer *buffer; |
| int i, num; |
| |
| sh = gst_structure_get_value (structure, "streamheader"); |
| num = gst_value_array_get_size (sh); |
| GST_DEBUG_OBJECT (this, |
| "Need to serialize %d incoming streamheader buffers on ours", num); |
| |
| for (i = 0; i < num; ++i) { |
| const GValue *bufval; |
| GstBuffer *outbuffer; |
| |
| bufval = gst_value_array_get_value (sh, i); |
| buffer = gst_value_get_buffer (bufval); |
| |
| /* Make copy before modifying buffer metadata */ |
| buffer = gst_buffer_copy (buffer); |
| |
| /* this buffer is deserialized by gdpdepay as a regular buffer, |
| it needs HEADER, because it's a streamheader - otherwise it |
| is mixed with regular data buffers */ |
| GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_HEADER); |
| GST_BUFFER_OFFSET (buffer) = GST_BUFFER_OFFSET_NONE; |
| GST_BUFFER_OFFSET_END (buffer) = GST_BUFFER_OFFSET_NONE; |
| GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE; |
| |
| outbuffer = gst_gdp_pay_buffer_from_buffer (this, buffer); |
| |
| gst_buffer_unref (buffer); |
| |
| if (!outbuffer) { |
| g_value_unset (&array); |
| goto no_buffer; |
| } |
| |
| /* Setting HEADER as other GDP event buffers */ |
| GST_DEBUG_OBJECT (this, |
| "Setting HEADER flag on outgoing buffer %" GST_PTR_FORMAT, outbuffer); |
| GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER); |
| GST_BUFFER_OFFSET (outbuffer) = GST_BUFFER_OFFSET_NONE; |
| GST_BUFFER_OFFSET_END (outbuffer) = GST_BUFFER_OFFSET_NONE; |
| GST_BUFFER_TIMESTAMP (outbuffer) = GST_CLOCK_TIME_NONE; |
| |
| gdp_streamheader_array_append_take_buffer (&array, outbuffer); |
| } |
| } else { |
| GST_DEBUG_OBJECT (this, "no streamheader to serialize"); |
| } |
| |
| GST_DEBUG_OBJECT (this, "%d serialized buffers on streamheaders", |
| gst_value_array_get_size (&array)); |
| caps = gst_caps_from_string ("application/x-gdp"); |
| structure = gst_caps_get_structure (caps, 0); |
| |
| gst_structure_set_value (structure, "streamheader", &array); |
| g_value_unset (&array); |
| |
| GST_DEBUG_OBJECT (this, "Setting caps on src pad %" GST_PTR_FORMAT, caps); |
| gst_pad_set_caps (this->srcpad, caps); |
| |
| /* if these are our first ever buffers, send out new_segment first */ |
| if (!this->sent_streamheader) { |
| GstEvent *event; |
| GstSegment segment; |
| |
| gst_segment_init (&segment, GST_FORMAT_BYTES); |
| event = gst_event_new_segment (&segment); |
| |
| GST_DEBUG_OBJECT (this, "Sending out new_segment event %p", event); |
| if (!gst_pad_push_event (this->srcpad, event)) { |
| GST_WARNING_OBJECT (this, "pushing new segment failed"); |
| r = GST_FLOW_ERROR; |
| goto done; |
| } |
| } |
| |
| this->sent_streamheader = TRUE; |
| GST_DEBUG_OBJECT (this, "need to push %d queued buffers", |
| g_list_length (this->queue)); |
| 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); |
| |
| r = gst_pad_push (this->srcpad, buffer); |
| if (r != GST_FLOW_OK) { |
| GST_WARNING_OBJECT (this, "pushing queued GDP buffer returned %d", r); |
| goto done; |
| } |
| } |
| |
| this->reset_streamheader = FALSE; |
| |
| done: |
| gst_caps_unref (caps); |
| GST_DEBUG_OBJECT (this, "stop"); |
| 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, this takes ownership of the buffer. */ |
| static GstFlowReturn |
| gst_gdp_queue_buffer (GstGDPPay * this, GstBuffer * buffer) |
| { |
| if (this->sent_streamheader && !this->reset_streamheader) { |
| 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. buffer remains reffed. */ |
| this->queue = g_list_append (this->queue, buffer); |
| GST_DEBUG_OBJECT (this, "streamheader not sent yet or needs update, " |
| "queued buffer %p, now %d buffers queued", |
| buffer, g_list_length (this->queue)); |
| |
| return GST_FLOW_OK; |
| } |
| |
| static GstFlowReturn |
| gst_gdp_pay_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer) |
| { |
| GstGDPPay *this; |
| GstBuffer *outbuffer; |
| GstFlowReturn ret; |
| |
| this = GST_GDP_PAY (parent); |
| |
| /* we should have received a new_segment before, otherwise it's a bug. |
| * fake one in that case */ |
| if (!this->have_segment) { |
| GstEvent *event; |
| GstSegment segment; |
| |
| GST_WARNING_OBJECT (this, |
| "did not receive new-segment before first buffer"); |
| gst_segment_init (&segment, GST_FORMAT_BYTES); |
| event = gst_event_new_segment (&segment); |
| outbuffer = gst_gdp_buffer_from_event (this, event); |
| gst_event_unref (event); |
| |
| /* GDP 0.2 doesn't know about new-segment, so this is not fatal */ |
| if (!outbuffer) { |
| GST_ELEMENT_WARNING (this, STREAM, ENCODE, (NULL), |
| ("Could not create GDP buffer from new segment event")); |
| } else { |
| GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer); |
| GST_BUFFER_DURATION (outbuffer) = 0; |
| GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER); |
| GST_DEBUG_OBJECT (this, "Storing buffer %p as new_segment_buf", |
| outbuffer); |
| this->have_segment = TRUE; |
| } |
| } |
| /* make sure we've received caps before */ |
| if (!this->caps) |
| goto no_caps; |
| |
| /* 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) |
| goto no_buffer; |
| |
| /* If the incoming buffer is HEADER, that means we have it on the caps |
| * as streamheader, and we have serialized a GDP version of it and put it |
| * on our caps */ |
| if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_HEADER)) { |
| GST_DEBUG_OBJECT (this, "Setting HEADER flag on outgoing buffer %p", |
| outbuffer); |
| GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER); |
| } |
| |
| gst_gdp_stamp_buffer (this, outbuffer); |
| GST_BUFFER_TIMESTAMP (outbuffer) = GST_BUFFER_TIMESTAMP (buffer); |
| GST_BUFFER_DURATION (outbuffer) = GST_BUFFER_DURATION (buffer); |
| |
| if (this->reset_streamheader) |
| gst_gdp_pay_reset_streamheader (this); |
| |
| ret = gst_gdp_queue_buffer (this, outbuffer); |
| |
| done: |
| gst_buffer_unref (buffer); |
| |
| 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")); |
| ret = GST_FLOW_NOT_NEGOTIATED; |
| 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 |
| gst_gdp_pay_sink_event (GstPad * pad, GstObject * parent, GstEvent * event) |
| { |
| GstBuffer *outbuffer; |
| GstGDPPay *this = GST_GDP_PAY (parent); |
| GstFlowReturn flowret; |
| GstCaps *caps; |
| gboolean ret = TRUE; |
| |
| GST_DEBUG_OBJECT (this, "received event %p of type %s (%d)", |
| event, gst_event_type_get_name (event->type), event->type); |
| |
| /* now turn the event into a buffer */ |
| outbuffer = gst_gdp_buffer_from_event (this, event); |
| if (!outbuffer) |
| goto no_outbuffer; |
| |
| GST_BUFFER_TIMESTAMP (outbuffer) = GST_EVENT_TIMESTAMP (event); |
| GST_BUFFER_DURATION (outbuffer) = 0; |
| |
| /* if we got a new segment or tag event, we should put it on our streamheader, |
| * and not send it on */ |
| switch (GST_EVENT_TYPE (event)) { |
| case GST_EVENT_STREAM_START: |
| GST_DEBUG_OBJECT (this, "Received stream start id"); |
| this->have_streamstartid = TRUE; |
| break; |
| case GST_EVENT_SEGMENT: |
| GST_DEBUG_OBJECT (this, "Received segment %" GST_PTR_FORMAT, event); |
| this->have_segment = TRUE; |
| break; |
| case GST_EVENT_CAPS:{ |
| GST_DEBUG_OBJECT (this, "Received caps %" GST_PTR_FORMAT, event); |
| this->have_caps = TRUE; |
| gst_event_parse_caps (event, &caps); |
| gst_buffer_replace (&outbuffer, NULL); |
| if (this->caps == NULL || !gst_caps_is_equal (this->caps, caps)) { |
| GST_INFO_OBJECT (pad, "caps changed to %" GST_PTR_FORMAT, caps); |
| gst_caps_replace (&this->caps, caps); |
| outbuffer = gst_gdp_buffer_from_caps (this, caps); |
| if (outbuffer == NULL) |
| goto no_buffer_from_caps; |
| |
| GST_BUFFER_DURATION (outbuffer) = 0; |
| } |
| break; |
| } |
| default: |
| break; |
| } |
| |
| if (GST_EVENT_IS_STICKY (event)) { |
| GST_BUFFER_FLAG_SET (outbuffer, GST_BUFFER_FLAG_HEADER); |
| this->reset_streamheader = TRUE; |
| } |
| |
| /* if we have EOS, we should send on EOS ourselves */ |
| if (GST_EVENT_TYPE (event) == GST_EVENT_EOS |
| || GST_EVENT_TYPE (event) == GST_EVENT_STREAM_START) { |
| GST_DEBUG_OBJECT (this, "Sending on event %" GST_PTR_FORMAT, event); |
| /* ref, we unref later again */ |
| ret = gst_pad_push_event (this->srcpad, gst_event_ref (event)); |
| } |
| |
| if (GST_EVENT_TYPE (event) != GST_EVENT_EOS) { |
| 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) |
| goto push_error; |
| } else { |
| gst_buffer_unref (outbuffer); |
| } |
| |
| done: |
| gst_event_unref (event); |
| |
| 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; |
| } |
| no_buffer_from_caps: |
| { |
| GST_ELEMENT_ERROR (this, STREAM, ENCODE, (NULL), |
| ("Could not create GDP buffer from caps %" GST_PTR_FORMAT, caps)); |
| 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, GstObject * parent, GstEvent * event) |
| { |
| GstGDPPay *this; |
| gboolean res = TRUE; |
| |
| this = GST_GDP_PAY (parent); |
| |
| 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; |
| } |
| |
| return res; |
| } |
| |
| static void |
| gst_gdp_pay_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstGDPPay *this; |
| |
| g_return_if_fail (GST_IS_GDP_PAY (object)); |
| this = GST_GDP_PAY (object); |
| |
| switch (prop_id) { |
| case PROP_CRC_HEADER: |
| this->crc_header = |
| g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_HEADER : 0; |
| this->header_flag = this->crc_header | this->crc_payload; |
| break; |
| case PROP_CRC_PAYLOAD: |
| this->crc_payload = |
| g_value_get_boolean (value) ? GST_DP_HEADER_FLAG_CRC_PAYLOAD : 0; |
| this->header_flag = this->crc_header | this->crc_payload; |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_gdp_pay_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| GstGDPPay *this; |
| |
| g_return_if_fail (GST_IS_GDP_PAY (object)); |
| this = GST_GDP_PAY (object); |
| |
| switch (prop_id) { |
| case PROP_CRC_HEADER: |
| g_value_set_boolean (value, this->crc_header); |
| break; |
| case PROP_CRC_PAYLOAD: |
| g_value_set_boolean (value, this->crc_payload); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static GstStateChangeReturn |
| gst_gdp_pay_change_state (GstElement * element, GstStateChange transition) |
| { |
| GstStateChangeReturn ret; |
| GstGDPPay *this = GST_GDP_PAY (element); |
| |
| switch (transition) { |
| case GST_STATE_CHANGE_READY_TO_PAUSED: |
| break; |
| default: |
| break; |
| } |
| |
| ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); |
| |
| switch (transition) { |
| case GST_STATE_CHANGE_PAUSED_TO_READY: |
| gst_gdp_pay_reset (this); |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| gboolean |
| gst_gdp_pay_plugin_init (GstPlugin * plugin) |
| { |
| if (!gst_element_register (plugin, "gdppay", GST_RANK_NONE, GST_TYPE_GDP_PAY)) |
| return FALSE; |
| |
| return TRUE; |
| } |