diff options
Diffstat (limited to 'ext/metadata/gstmetadatamux.c')
| -rw-r--r-- | ext/metadata/gstmetadatamux.c | 1037 |
1 files changed, 113 insertions, 924 deletions
diff --git a/ext/metadata/gstmetadatamux.c b/ext/metadata/gstmetadatamux.c index f2c2a895..8175e7c6 100644 --- a/ext/metadata/gstmetadatamux.c +++ b/ext/metadata/gstmetadatamux.c @@ -86,11 +86,10 @@ enum enum { ARG_0, - ARG_EXIF, - ARG_IPTC, - ARG_XMP + ARG_PARSE_ONLY }; + static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, @@ -113,8 +112,8 @@ gst_metadata_mux_add_interfaces (GType type) } -GST_BOILERPLATE_FULL (GstMetadataMux, gst_metadata_mux, GstElement, - GST_TYPE_ELEMENT, gst_metadata_mux_add_interfaces); +GST_BOILERPLATE_FULL (GstMetadataMux, gst_metadata_mux, GstBaseMetadata, + GST_TYPE_BASE_METADATA, gst_metadata_mux_add_interfaces); static GstMetadataMuxClass *metadata_parent_class = NULL; @@ -127,53 +126,19 @@ static void gst_metadata_mux_set_property (GObject * object, guint prop_id, static void gst_metadata_mux_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); -static GstStateChangeReturn -gst_metadata_mux_change_state (GstElement * element, GstStateChange transition); - static GstCaps *gst_metadata_mux_get_caps (GstPad * pad); static gboolean gst_metadata_mux_set_caps (GstPad * pad, GstCaps * caps); -static gboolean gst_metadata_mux_src_event (GstPad * pad, GstEvent * event); static gboolean gst_metadata_mux_sink_event (GstPad * pad, GstEvent * event); -static GstFlowReturn gst_metadata_mux_chain (GstPad * pad, GstBuffer * buf); - -static gboolean gst_metadata_mux_checkgetrange (GstPad * srcpad); - -static GstFlowReturn -gst_metadata_mux_get_range (GstPad * pad, guint64 offset_orig, guint size, - GstBuffer ** buf); - -static gboolean gst_metadata_mux_sink_activate (GstPad * pad); - -static gboolean -gst_metadata_mux_src_activate_pull (GstPad * pad, gboolean active); - -static gboolean gst_metadata_mux_pull_range_mux (GstMetadataMux * filter); - -static void gst_metadata_mux_init_members (GstMetadataMux * filter); -static void gst_metadata_mux_dispose_members (GstMetadataMux * filter); - -static gboolean gst_metadata_mux_configure_srccaps (GstMetadataMux * filter); - -static gboolean gst_metadata_mux_configure_caps (GstMetadataMux * filter); - -static int -gst_metadata_mux_parse (GstMetadataMux * filter, const guint8 * buf, - guint32 size); - -static void gst_metadata_mux_create_chunks_from_tags (GstMetadataMux * filter); - -static const GstQueryType *gst_metadata_mux_get_query_types (GstPad * pad); - -static gboolean gst_metadata_mux_src_query (GstPad * pad, GstQuery * query); +static void gst_metadata_mux_create_chunks_from_tags (GstBaseMetadata * base); static void gst_metadata_mux_base_init (gpointer gclass) { static GstElementDetails element_details = { - "Metadata muxer", - "Muxer/Metadata", - "Convert tags to metadata (EXIF, IPTC and XMP) and insert into the stream", + "Metadata muxr", + "Muxr/Extracter/Metadata", + "Send metadata tags (EXIF, IPTC and XMP) and remove metadata chunks from stream", "Edgard Lima <edgard.lima@indt.org.br>" }; GstElementClass *element_class = GST_ELEMENT_CLASS (gclass); @@ -191,9 +156,11 @@ gst_metadata_mux_class_init (GstMetadataMuxClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; + GstBaseMetadataClass *gstbasemetadata_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; + gstbasemetadata_class = (GstBaseMetadataClass *) klass; metadata_parent_class = g_type_class_peek_parent (klass); @@ -203,19 +170,20 @@ gst_metadata_mux_class_init (GstMetadataMuxClass * klass) gobject_class->set_property = gst_metadata_mux_set_property; gobject_class->get_property = gst_metadata_mux_get_property; - g_object_class_install_property (gobject_class, ARG_EXIF, - g_param_spec_boolean ("exif", "EXIF", "Send EXIF metadata ?", - TRUE, G_PARAM_READWRITE)); - - g_object_class_install_property (gobject_class, ARG_IPTC, - g_param_spec_boolean ("iptc", "IPTC", "Send IPTC metadata ?", - FALSE, G_PARAM_READWRITE)); - - g_object_class_install_property (gobject_class, ARG_XMP, - g_param_spec_boolean ("xmp", "XMP", "Send XMP metadata ?", - FALSE, G_PARAM_READWRITE)); - - gstelement_class->change_state = gst_metadata_mux_change_state; + g_object_class_install_property (gobject_class, ARG_PARSE_ONLY, + g_param_spec_boolean ("parse-only", "parse-only", + "If TRUE, don't strip out any chunk", FALSE, G_PARAM_READWRITE)); + + gstbasemetadata_class->processing = + GST_DEBUG_FUNCPTR (gst_metadata_mux_create_chunks_from_tags); + gstbasemetadata_class->set_caps = + GST_DEBUG_FUNCPTR (gst_metadata_mux_set_caps); + gstbasemetadata_class->get_sink_caps = + GST_DEBUG_FUNCPTR (gst_metadata_mux_get_caps); + gstbasemetadata_class->get_src_caps = + GST_DEBUG_FUNCPTR (gst_metadata_mux_get_caps); + gstbasemetadata_class->sink_event = + GST_DEBUG_FUNCPTR (gst_metadata_mux_sink_event); } @@ -229,52 +197,8 @@ gst_metadata_mux_init (GstMetadataMux * filter, GstMetadataMuxClass * gclass) { GstElementClass *klass = GST_ELEMENT_GET_CLASS (filter); - /* sink pad */ - - filter->sinkpad = - gst_pad_new_from_template (gst_element_class_get_pad_template (klass, - "sink"), "sink"); - gst_pad_set_setcaps_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_set_caps)); - gst_pad_set_getcaps_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_get_caps)); - gst_pad_set_event_function (filter->sinkpad, gst_metadata_mux_sink_event); - gst_pad_set_chain_function (filter->sinkpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_chain)); - gst_pad_set_activate_function (filter->sinkpad, - gst_metadata_mux_sink_activate); - - /* source pad */ - - filter->srcpad = - gst_pad_new_from_template (gst_element_class_get_pad_template (klass, - "src"), "src"); - gst_pad_set_getcaps_function (filter->srcpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_get_caps)); - gst_pad_set_event_function (filter->srcpad, gst_metadata_mux_src_event); - gst_pad_set_query_function (filter->srcpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_src_query)); - gst_pad_set_query_type_function (filter->srcpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_get_query_types)); - gst_pad_use_fixed_caps (filter->srcpad); - - gst_pad_set_checkgetrange_function (filter->srcpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_checkgetrange)); - gst_pad_set_getrange_function (filter->srcpad, gst_metadata_mux_get_range); - - gst_pad_set_activatepull_function (filter->srcpad, - GST_DEBUG_FUNCPTR (gst_metadata_mux_src_activate_pull)); - /* addind pads */ - - gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad); - gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad); - - metadataparse_xmp_init (); - /* init members */ - - filter->options = META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP; - - gst_metadata_mux_init_members (filter); + gst_base_metadata_set_option_flag (GST_BASE_METADATA (filter), + META_OPT_EXIF | META_OPT_IPTC | META_OPT_XMP | META_OPT_MUX); } @@ -285,23 +209,13 @@ gst_metadata_mux_set_property (GObject * object, guint prop_id, GstMetadataMux *filter = GST_METADATA_MUX (object); switch (prop_id) { - case ARG_EXIF: - if (g_value_get_boolean (value)) - filter->options |= META_OPT_EXIF; - else - filter->options &= ~META_OPT_EXIF; - break; - case ARG_IPTC: - if (g_value_get_boolean (value)) - filter->options |= META_OPT_IPTC; - else - filter->options &= ~META_OPT_IPTC; - break; - case ARG_XMP: + case ARG_PARSE_ONLY: if (g_value_get_boolean (value)) - filter->options |= META_OPT_XMP; + gst_base_metadata_set_option_flag (GST_BASE_METADATA (object), + META_OPT_PARSE_ONLY); else - filter->options &= ~META_OPT_XMP; + gst_base_metadata_unset_option_flag (GST_BASE_METADATA (object), + META_OPT_PARSE_ONLY); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); @@ -313,17 +227,12 @@ static void gst_metadata_mux_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { - GstMetadataMux *filter = GST_METADATA_MUX (object); + guint8 option = + gst_base_metadata_get_option_flag (GST_BASE_METADATA (object)); switch (prop_id) { - case ARG_EXIF: - g_value_set_boolean (value, filter->options & META_OPT_EXIF); - break; - case ARG_IPTC: - g_value_set_boolean (value, filter->options & META_OPT_IPTC); - break; - case ARG_XMP: - g_value_set_boolean (value, filter->options & META_OPT_XMP); + case ARG_PARSE_ONLY: + g_value_set_boolean (value, option & META_OPT_PARSE_ONLY); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); @@ -331,80 +240,27 @@ gst_metadata_mux_get_property (GObject * object, guint prop_id, } } -/* GstElement vmethod implementations */ -static GstCaps * -gst_metadata_mux_get_caps (GstPad * pad) + +static void +gst_metadata_mux_dispose (GObject * object) { GstMetadataMux *filter = NULL; - GstPad *otherpad; - GstCaps *caps_new = NULL; - GstCaps *caps_otherpad_peer = NULL; - - filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); - (filter->srcpad == pad) ? (otherpad = filter->sinkpad) : (otherpad = - filter->srcpad); - - caps_new = gst_caps_copy (gst_pad_get_pad_template_caps (pad)); - - caps_otherpad_peer = gst_pad_get_allowed_caps (otherpad); - GOTO_DONE_IF_NULL (caps_otherpad_peer); - - if (gst_caps_is_empty (caps_otherpad_peer) - || gst_caps_is_any (caps_otherpad_peer)) { - goto done; - } else { - - guint i; - guint caps_size = 0; - - caps_size = gst_caps_get_size (caps_otherpad_peer); - - gst_caps_unref (caps_new); - - caps_new = gst_caps_new_empty (); - - for (i = 0; i < caps_size; ++i) { - GstStructure *structure = NULL; - GstStructure *structure_new = NULL; - const gchar *mime = NULL; - - structure = gst_caps_get_structure (caps_otherpad_peer, i); - - mime = gst_structure_get_name (structure); - - if (pad == filter->sinkpad) { - structure_new = - gst_structure_new (mime, "tags-extracted", G_TYPE_BOOLEAN, TRUE, - NULL); - } else { - structure_new = gst_structure_new (mime, NULL); - } - - gst_caps_append_structure (caps_new, structure_new); - - } - - } - -done: - - if (caps_otherpad_peer) { - gst_caps_unref (caps_otherpad_peer); - caps_otherpad_peer = NULL; - } - - gst_object_unref (filter); - - return caps_new; + G_OBJECT_CLASS (metadata_parent_class)->dispose (object); +} +static void +gst_metadata_mux_finalize (GObject * object) +{ + G_OBJECT_CLASS (metadata_parent_class)->finalize (object); } static void -gst_metadata_create_chunks_from_tags (GstMetadataMux * filter) +gst_metadata_mux_create_chunks_from_tags (GstBaseMetadata * base) { + GstMetadataMux *filter = GST_METADATA_MUX (base); GstMessage *msg; GstTagSetter *setter = GST_TAG_SETTER (filter); const GstTagList *taglist = gst_tag_setter_get_tag_list (setter); @@ -414,22 +270,22 @@ gst_metadata_create_chunks_from_tags (GstMetadataMux * filter) if (taglist) { - if (filter->options & META_OPT_EXIF) { + if (gst_base_metadata_get_option_flag (base) & META_OPT_EXIF) { metadatamux_exif_create_chunk_from_tag_list (&buf, &size, taglist); - gst_metadata_common_update_segment_with_new_buffer (&filter->common, &buf, - &size, MD_CHUNK_EXIF); + gst_base_metadata_update_segment_with_new_buffer (base, &buf, &size, + MD_CHUNK_EXIF); } - if (filter->options & META_OPT_IPTC) { + if (gst_base_metadata_get_option_flag (base) & META_OPT_IPTC) { metadatamux_iptc_create_chunk_from_tag_list (&buf, &size, taglist); - gst_metadata_common_update_segment_with_new_buffer (&filter->common, &buf, - &size, MD_CHUNK_IPTC); + gst_base_metadata_update_segment_with_new_buffer (base, &buf, &size, + MD_CHUNK_IPTC); } - if (filter->options & META_OPT_XMP) { + if (gst_base_metadata_get_option_flag (base) & META_OPT_XMP) { metadatamux_xmp_create_chunk_from_tag_list (&buf, &size, taglist); - gst_metadata_common_update_segment_with_new_buffer (&filter->common, &buf, - &size, MD_CHUNK_XMP); + gst_base_metadata_update_segment_with_new_buffer (base, &buf, &size, + MD_CHUNK_XMP); } } @@ -438,208 +294,7 @@ gst_metadata_create_chunks_from_tags (GstMetadataMux * filter) g_free (buf); } - metadata_chunk_array_remove_zero_size (&filter->common.metadata. - inject_chunks); - -} - -static gboolean -gst_metadata_mux_src_event (GstPad * pad, GstEvent * event) -{ - GstMetadataMux *filter = NULL; - gboolean ret = FALSE; - - filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_SEEK: - { - gdouble rate; - GstFormat format; - GstSeekFlags flags; - GstSeekType start_type; - gint64 start; - GstSeekType stop_type; - gint64 stop; - - /* we don't know where are the chunks to be stripped before mux */ - if (filter->need_calculate_offset) { - gst_metadata_create_chunks_from_tags (filter); - if (gst_metadata_common_calculate_offsets (&filter->common)) - filter->need_calculate_offset = FALSE; - else - goto done; - } - - gst_event_parse_seek (event, &rate, &format, &flags, - &start_type, &start, &stop_type, &stop); - - switch (format) { - case GST_FORMAT_BYTES: - break; - case GST_FORMAT_PERCENT: - if (filter->common.duration < 0) - goto done; - start = start * filter->common.duration / 100; - stop = stop * filter->common.duration / 100; - break; - default: - goto done; - } - format = GST_FORMAT_BYTES; - - if (start_type == GST_SEEK_TYPE_CUR) - start = filter->offset + start; - else if (start_type == GST_SEEK_TYPE_END) { - if (filter->common.duration < 0) - goto done; - start = filter->common.duration + start; - } - start_type == GST_SEEK_TYPE_SET; - - if (filter->prepend_buffer) { - gst_buffer_unref (filter->prepend_buffer); - filter->prepend_buffer = NULL; - } - - /* FIXME: related to append */ - filter->offset = start; - gst_metadata_common_translate_pos_to_orig (&filter->common, start, &start, - &filter->prepend_buffer); - filter->offset_orig = start; - - if (stop_type == GST_SEEK_TYPE_CUR) - stop = filter->offset + stop; - else if (stop_type == GST_SEEK_TYPE_END) { - if (filter->common.duration < 0) - goto done; - stop = filter->common.duration + stop; - } - stop_type == GST_SEEK_TYPE_SET; - - gst_metadata_common_translate_pos_to_orig (&filter->common, stop, &stop, - NULL); - - gst_event_unref (event); - event = gst_event_new_seek (rate, format, flags, - start_type, start, stop_type, stop); - - } - break; - default: - break; - } - - ret = gst_pad_event_default (pad, event); - event = NULL; /* event has another owner */ - -done: - - if (event) { - gst_event_unref (event); - } - - gst_object_unref (filter); - - return ret; - -} - -static gboolean -gst_metadata_mux_sink_event (GstPad * pad, GstEvent * event) -{ - GstMetadataMux *filter = NULL; - gboolean ret = FALSE; - - filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_EOS: - if (filter->need_more_data) { - GST_ELEMENT_WARNING (filter, STREAM, DEMUX, (NULL), - ("Need more data. Unexpected EOS")); - } - break; - case GST_EVENT_TAG: - { - GstTagList *taglist = NULL; - GstTagSetter *setter = GST_TAG_SETTER (filter); - - gst_event_parse_tag (event, &taglist); - gst_tag_setter_merge_tags (setter, taglist, GST_TAG_MERGE_REPLACE); - - } - break; - default: - break; - } - - ret = gst_pad_event_default (pad, event); - - gst_object_unref (filter); - - return ret; - -} - -static void -gst_metadata_mux_dispose (GObject * object) -{ - GstMetadataMux *filter = NULL; - - filter = GST_METADATA_MUX (object); - - gst_metadata_mux_dispose_members (filter); - - metadataparse_xmp_dispose (); - - G_OBJECT_CLASS (metadata_parent_class)->dispose (object); -} - -static void -gst_metadata_mux_finalize (GObject * object) -{ - G_OBJECT_CLASS (metadata_parent_class)->finalize (object); -} - -static void -gst_metadata_mux_dispose_members (GstMetadataMux * filter) -{ - gst_metadata_common_dispose (&filter->common); - - if (filter->adapter_parsing) { - gst_object_unref (filter->adapter_parsing); - filter->adapter_parsing = NULL; - } - - if (filter->adapter_holding) { - gst_object_unref (filter->adapter_holding); - filter->adapter_holding = NULL; - } - - if (filter->prepend_buffer) { - gst_buffer_unref (filter->prepend_buffer); - filter->prepend_buffer = NULL; - } -} - -static void -gst_metadata_mux_init_members (GstMetadataMux * filter) -{ - filter->need_calculate_offset = FALSE; - - filter->adapter_parsing = NULL; - filter->adapter_holding = NULL; - filter->next_offset = 0; - filter->next_size = 0; - filter->img_type = IMG_NONE; - filter->offset_orig = 0; - filter->offset = 0; - filter->need_more_data = FALSE; - - filter->prepend_buffer = NULL; - - memset (&filter->common, 0x00, sizeof (filter->common)); + gst_base_metadata_chunk_array_remove_zero_size (base); } @@ -650,7 +305,7 @@ gst_metadata_mux_configure_srccaps (GstMetadataMux * filter) gboolean ret = FALSE; gchar *mime = NULL; - switch (filter->img_type) { + switch (GST_BASE_METADATA_IMG_TYPE (filter)) { case IMG_JPEG: mime = "image/jpeg"; break; @@ -665,7 +320,7 @@ gst_metadata_mux_configure_srccaps (GstMetadataMux * filter) caps = gst_caps_new_simple (mime, NULL); - ret = gst_pad_set_caps (filter->srcpad, caps); + ret = gst_pad_set_caps (GST_BASE_METADATA_SRC_PAD (filter), caps); done: @@ -678,51 +333,6 @@ done: } -static gboolean -gst_metadata_mux_configure_caps (GstMetadataMux * filter) -{ - GstCaps *caps = NULL; - gboolean ret = FALSE; - gchar *mime = NULL; - GstPad *peer = NULL; - - peer = gst_pad_get_peer (filter->sinkpad); - - switch (filter->img_type) { - case IMG_JPEG: - mime = "image/jpeg"; - break; - case IMG_PNG: - mime = "image/png"; - break; - default: - goto done; - break; - } - - caps = gst_caps_new_simple (mime, NULL); - - if (!gst_pad_set_caps (peer, caps)) { - goto done; - } - - ret = gst_pad_set_caps (filter->sinkpad, caps); - -done: - - if (caps) { - gst_caps_unref (caps); - caps = NULL; - } - - if (peer) { - gst_object_unref (peer); - peer = NULL; - } - - return ret; - -} /* this function handles the link with other elements */ static gboolean @@ -732,7 +342,7 @@ gst_metadata_mux_set_caps (GstPad * pad, GstCaps * caps) GstStructure *structure = NULL; const gchar *mime = NULL; gboolean ret = FALSE; - gboolean muxd = TRUE; + gboolean based = TRUE; filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); @@ -741,16 +351,16 @@ gst_metadata_mux_set_caps (GstPad * pad, GstCaps * caps) mime = gst_structure_get_name (structure); if (strcmp (mime, "image/jpeg") == 0) { - filter->img_type = IMG_JPEG; + GST_BASE_METADATA_IMG_TYPE (filter) = IMG_JPEG; } else if (strcmp (mime, "image/png") == 0) { - filter->img_type = IMG_PNG; + GST_BASE_METADATA_IMG_TYPE (filter) = IMG_PNG; } else { ret = FALSE; goto done; } - if (gst_structure_get_boolean (structure, "tags-extracted", &muxd)) { - if (muxd == FALSE) { + if (gst_structure_get_boolean (structure, "tags-extracted", &based)) { + if (based == FALSE) { ret = FALSE; goto done; } @@ -765,525 +375,104 @@ done: return ret; } -static const GstQueryType * -gst_metadata_mux_get_query_types (GstPad * pad) -{ - static const GstQueryType gst_metadata_mux_src_query_types[] = { - GST_QUERY_POSITION, - GST_QUERY_DURATION, - GST_QUERY_FORMATS, - 0 - }; - - return gst_metadata_mux_src_query_types; -} - -static gboolean -gst_metadata_mux_src_query (GstPad * pad, GstQuery * query) -{ - gboolean ret = FALSE; - GstFormat format; - GstMetadataMux *filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); - - switch (GST_QUERY_TYPE (query)) { - case GST_QUERY_POSITION: - gst_query_parse_position (query, &format, NULL); - - if (format == GST_FORMAT_BYTES) { - gst_query_set_position (query, GST_FORMAT_BYTES, filter->offset); - ret = TRUE; - } - break; - case GST_QUERY_DURATION: - if (filter->need_calculate_offset) { - gst_metadata_create_chunks_from_tags (filter); - if (gst_metadata_common_calculate_offsets (&filter->common)) - filter->need_calculate_offset = FALSE; - else - goto done; - } - - gst_query_parse_duration (query, &format, NULL); - - if (format == GST_FORMAT_BYTES) { - if (filter->common.duration >= 0) { - gst_query_set_duration (query, GST_FORMAT_BYTES, - filter->common.duration); - ret = TRUE; - } - } - break; - case GST_QUERY_FORMATS: - gst_query_set_formats (query, 1, GST_FORMAT_BYTES); - ret = TRUE; - break; - default: - break; - } - -done: - - gst_object_unref (filter); - - return ret; - -} - -/* - * Do parsing step-by-step and reconfigure caps if need - * return: - * META_PARSING_ERROR - * META_PARSING_DONE - * META_PARSING_NEED_MORE_DATA - */ - -static int -gst_metadata_mux_parse (GstMetadataMux * filter, const guint8 * buf, - guint32 size) -{ - - int ret = META_PARSING_ERROR; - - filter->next_offset = 0; - filter->next_size = 0; - - ret = metadata_parse (&filter->common.metadata, buf, size, - &filter->next_offset, &filter->next_size); - - if (ret == META_PARSING_ERROR) { - if (META_DATA_IMG_TYPE (filter->common.metadata) == IMG_NONE) { - /* image type not recognized */ - GST_ELEMENT_ERROR (filter, STREAM, TYPE_NOT_FOUND, (NULL), - ("Only jpeg and png are supported")); - goto done; - } - } else if (ret == META_PARSING_NEED_MORE_DATA) { - filter->need_more_data = TRUE; - } else { - filter->common.state = MT_STATE_PARSED; - filter->need_more_data = FALSE; - filter->need_calculate_offset = TRUE; - } - - /* reconfigure caps if it is different from type detected by 'metadata_mux' function */ - if (filter->img_type != META_DATA_IMG_TYPE (filter->common.metadata)) { - filter->img_type = META_DATA_IMG_TYPE (filter->common.metadata); - if (!gst_metadata_mux_configure_caps (filter)) { - GST_ELEMENT_ERROR (filter, STREAM, FORMAT, (NULL), - ("Couldn't reconfigure caps for %s", - gst_metadata_common_get_type_name (filter->img_type))); - ret = META_PARSING_ERROR; - goto done; - } - } - -done: - - return ret; - -} - -/* chain function - * this function does the actual processing - */ - -/* FIXME */ -/* Current mux is just done before is pull mode could be activated */ -/* may be it is possible to mux in chain mode by doing some trick with gst-adapter */ -/* the pipeline below would be a test for that case */ -/* gst-launch-0.10 filesrc location=Exif.jpg ! queue ! metadatamux ! filesink location=gen3.jpg */ - -static GstFlowReturn -gst_metadata_mux_chain (GstPad * pad, GstBuffer * buf) +static GstCaps * +gst_metadata_mux_get_caps (GstPad * pad) { GstMetadataMux *filter = NULL; - GstFlowReturn ret = GST_FLOW_ERROR; - guint32 buf_size = 0; - guint32 new_buf_size = 0; - gboolean append = FALSE; + GstPad *otherpad; + GstCaps *caps_new = NULL; + GstCaps *caps_otherpad_peer = NULL; filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); - if (filter->common.state != MT_STATE_PARSED) { - guint32 adpt_size = gst_adapter_available (filter->adapter_parsing); - - if (filter->next_offset) { - if (filter->next_offset >= adpt_size) { - /* clean adapter */ - gst_adapter_clear (filter->adapter_parsing); - filter->next_offset -= adpt_size; - if (filter->next_offset >= GST_BUFFER_SIZE (buf)) { - /* we don't need data in this buffer */ - filter->next_offset -= GST_BUFFER_SIZE (buf); - } else { - GstBuffer *new_buf; - - /* add to adapter just need part from buf */ - new_buf = - gst_buffer_new_and_alloc (GST_BUFFER_SIZE (buf) - - filter->next_offset); - memcpy (GST_BUFFER_DATA (new_buf), - GST_BUFFER_DATA (buf) + filter->next_offset, - GST_BUFFER_SIZE (buf) - filter->next_offset); - filter->next_offset = 0; - gst_adapter_push (filter->adapter_parsing, new_buf); - } - } else { - /* remove first bytes and add buffer */ - gst_adapter_flush (filter->adapter_parsing, filter->next_offset); - filter->next_offset = 0; - gst_adapter_push (filter->adapter_parsing, gst_buffer_copy (buf)); - } - } else { - /* just push buffer */ - gst_adapter_push (filter->adapter_parsing, gst_buffer_copy (buf)); - } - - adpt_size = gst_adapter_available (filter->adapter_parsing); - - if (adpt_size && filter->next_size <= adpt_size) { - const guint8 *new_buf = - gst_adapter_peek (filter->adapter_parsing, adpt_size); - - if (gst_metadata_mux_parse (filter, new_buf, - adpt_size) == META_PARSING_ERROR) { - ret = GST_FLOW_ERROR; - goto done; - } - } - } - - if (filter->common.state == MT_STATE_PARSED) { - - if (filter->adapter_holding) { - gst_adapter_push (filter->adapter_holding, buf); - buf = gst_adapter_take_buffer (filter->adapter_holding, - gst_adapter_available (filter->adapter_holding)); - g_object_unref (filter->adapter_holding); - filter->adapter_holding = NULL; - } - - if (filter->need_calculate_offset) { - gst_metadata_create_chunks_from_tags (filter); - if (gst_metadata_common_calculate_offsets (&filter->common)) { - filter->need_calculate_offset = FALSE; - } else { - ret = GST_FLOW_ERROR; - goto done; - } - } - - if (filter->offset_orig + GST_BUFFER_SIZE (buf) == - filter->common.duration_orig) - append = TRUE; - - buf_size = GST_BUFFER_SIZE (buf); + (GST_BASE_METADATA_SRC_PAD (filter) == pad) ? + (otherpad = GST_BASE_METADATA_SINK_PAD (filter)) : + (otherpad = GST_BASE_METADATA_SRC_PAD (filter)); - gst_metadata_common_strip_push_buffer (&filter->common, filter->offset_orig, - &filter->prepend_buffer, &buf); - - if (buf) { /* may be all buffer has been striped */ - gst_buffer_set_caps (buf, GST_PAD_CAPS (filter->srcpad)); - new_buf_size = GST_BUFFER_SIZE (buf); - - ret = gst_pad_push (filter->srcpad, buf); - buf = NULL; /* this function don't owner it anymore */ - if (ret != GST_FLOW_OK) - goto done; - } else { - ret = GST_FLOW_OK; - } - - if (append && filter->common.append_buffer) { - gst_buffer_set_caps (filter->common.append_buffer, - GST_PAD_CAPS (filter->srcpad)); - gst_buffer_ref (filter->common.append_buffer); - ret = gst_pad_push (filter->srcpad, filter->common.append_buffer); - if (ret != GST_FLOW_OK) - goto done; - } + caps_new = gst_caps_copy (gst_pad_get_pad_template_caps (pad)); - filter->offset_orig += buf_size; - filter->offset += new_buf_size; + caps_otherpad_peer = gst_pad_get_allowed_caps (otherpad); + GOTO_DONE_IF_NULL (caps_otherpad_peer); + if (gst_caps_is_empty (caps_otherpad_peer) + || gst_caps_is_any (caps_otherpad_peer)) { + goto done; } else { - /* just store while still not muxd */ - if (!filter->adapter_holding) - filter->adapter_holding = gst_adapter_new (); - gst_adapter_push (filter->adapter_holding, buf); - buf = NULL; - ret = GST_FLOW_OK; - } - -done: + guint i; + guint caps_size = 0; - if (buf) { - /* there was an error and buffer wasn't pushed */ - gst_buffer_unref (buf); - buf = NULL; - } - - gst_object_unref (filter); - - return ret; - -} - -static gboolean -gst_metadata_mux_pull_range_mux (GstMetadataMux * filter) -{ + caps_size = gst_caps_get_size (caps_otherpad_peer); - int res; - gboolean ret = TRUE; - guint32 offset = 0; - gint64 duration = 0; - GstFormat format = GST_FORMAT_BYTES; + gst_caps_unref (caps_new); - if (!(ret = - gst_pad_query_peer_duration (filter->sinkpad, &format, &duration))) { - /* this should never happen, but try chain anyway */ - ret = TRUE; - goto done; - } - filter->common.duration_orig = duration; + caps_new = gst_caps_new_empty (); - if (format != GST_FORMAT_BYTES) { - /* this should never happen, but try chain anyway */ - ret = TRUE; - goto done; - } + for (i = 0; i < caps_size; ++i) { + GstStructure *structure = NULL; + GstStructure *structure_new = NULL; + const gchar *mime = NULL; - do { - GstFlowReturn flow; - GstBuffer *buf = NULL; + structure = gst_caps_get_structure (caps_otherpad_peer, i); - offset += filter->next_offset; + mime = gst_structure_get_name (structure); - /* 'filter->next_size' only says the minimum required number of bytes. - We try provided more bytes (4096) just to avoid a lot of calls to 'metadata_parse' - returning META_PARSING_NEED_MORE_DATA */ - if (filter->next_size < 4096) { - if (duration - offset < 4096) { - /* In case there is no 4096 bytes available upstream. - It should be done upstream but we do here for safety */ - filter->next_size = duration - offset; + if (pad == GST_BASE_METADATA_SINK_PAD (filter)) { + structure_new = + gst_structure_new (mime, "tags-extracted", G_TYPE_BOOLEAN, TRUE, + NULL); } else { - filter->next_size = 4096; + structure_new = gst_structure_new (mime, NULL); } - } - flow = - gst_pad_pull_range (filter->sinkpad, offset, filter->next_size, &buf); - if (GST_FLOW_OK != flow) { - ret = FALSE; - goto done; - } + gst_caps_append_structure (caps_new, structure_new); - res = - gst_metadata_mux_parse (filter, GST_BUFFER_DATA (buf), - GST_BUFFER_SIZE (buf)); - if (res == META_PARSING_ERROR) { - ret = FALSE; - goto done; } - gst_buffer_unref (buf); - - } while (res == META_PARSING_NEED_MORE_DATA); - -done: - - return ret; - -} - -static gboolean -gst_metadata_mux_sink_activate (GstPad * pad) -{ - GstMetadataMux *filter = NULL; - gboolean ret = TRUE; - - - filter = GST_METADATA_MUX (GST_PAD_PARENT (pad)); - - if (!gst_pad_check_pull_range (pad) || - !gst_pad_activate_pull (filter->sinkpad, TRUE)) { - /* FIXME: currently it is not possible to mux in chain. Fail here ? */ - /* nothing to be done by now, activate push mode */ - return gst_pad_activate_push (pad, TRUE); - } - - /* try to mux */ - if (filter->common.state == MT_STATE_NULL) { - ret = gst_metadata_mux_pull_range_mux (filter); } done: - if (ret) { - gst_pad_activate_pull (pad, FALSE); - gst_pad_activate_push (filter->srcpad, FALSE); - if (!gst_pad_is_active (pad)) { - ret = gst_pad_activate_push (filter->srcpad, TRUE); - ret = ret && gst_pad_activate_push (pad, TRUE); - } - } - - return ret; - -} - -static gboolean -gst_metadata_mux_checkgetrange (GstPad * srcpad) -{ - GstMetadataMux *filter = NULL; - - filter = GST_METADATA_MUX (GST_PAD_PARENT (srcpad)); - - return gst_pad_check_pull_range (filter->sinkpad); -} - -static GstFlowReturn -gst_metadata_mux_get_range (GstPad * pad, - guint64 offset, guint size, GstBuffer ** buf) -{ - GstMetadataMux *filter = NULL; - GstFlowReturn ret = GST_FLOW_OK; - gint64 offset_orig = 0; - guint size_orig; - GstBuffer *prepend = NULL; - gboolean need_append = FALSE; - - filter = GST_METADATA_MUX (GST_PAD_PARENT (pad)); - - if (filter->need_calculate_offset) { - gst_metadata_create_chunks_from_tags (filter); - if (gst_metadata_common_calculate_offsets (&filter->common)) { - filter->need_calculate_offset = FALSE; - } else { - ret = GST_FLOW_ERROR; - goto done; - } - } - - if (offset + size > filter->common.duration) { - size = filter->common.duration - offset; - } - - size_orig = size; - - gst_metadata_common_translate_pos_to_orig (&filter->common, offset, - &offset_orig, &prepend); - - if (size > 1) { - gint64 pos; - - pos = offset + size - 1; - gst_metadata_common_translate_pos_to_orig (&filter->common, pos, &pos, - NULL); - size_orig = pos + 1 - offset_orig; - } - - if (size_orig) { - - ret = gst_pad_pull_range (filter->sinkpad, offset_orig, size_orig, buf); - - if (ret == GST_FLOW_OK && *buf) { - gst_metadata_common_strip_push_buffer (&filter->common, offset_orig, - &prepend, buf); - - if (GST_BUFFER_SIZE (*buf) < size) { - /* need append */ - need_append = TRUE; - } - - } - } else { - *buf = prepend; + if (caps_otherpad_peer) { + gst_caps_unref (caps_otherpad_peer); + caps_otherpad_peer = NULL; } -done: - - if (need_append) { - /* FIXME: together with SEEK and - * gst_metadata_common_translate_pos_to_orig - * this way if chunk is added in the end we are in trolble - * ...still not implemented 'cause it will not be the - * case for the time being - */ - } + gst_object_unref (filter); - return ret; + return caps_new; } static gboolean -gst_metadata_mux_src_activate_pull (GstPad * pad, gboolean active) +gst_metadata_mux_sink_event (GstPad * pad, GstEvent * event) { GstMetadataMux *filter = NULL; - gboolean ret; + gboolean ret = FALSE; filter = GST_METADATA_MUX (gst_pad_get_parent (pad)); - ret = gst_pad_activate_pull (filter->sinkpad, active); - - if (ret && filter->common.state == MT_STATE_NULL) { - ret = gst_metadata_mux_pull_range_mux (filter); - } - - gst_object_unref (filter); - - return ret; -} + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_TAG: + { + GstTagList *taglist = NULL; + GstTagSetter *setter = GST_TAG_SETTER (filter); + gst_event_parse_tag (event, &taglist); + gst_tag_setter_merge_tags (setter, taglist, GST_TAG_MERGE_REPLACE); -static GstStateChangeReturn -gst_metadata_mux_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - GstMetadataMux *filter = GST_METADATA_MUX (element); - - switch (transition) { - case GST_STATE_CHANGE_NULL_TO_READY: - gst_metadata_mux_init_members (filter); - filter->adapter_parsing = gst_adapter_new (); - gst_metadata_common_init (&filter->common, FALSE, filter->options); + } break; default: break; } - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - if (ret == GST_STATE_CHANGE_FAILURE) - goto done; - - switch (transition) { - case GST_STATE_CHANGE_PAUSED_TO_READY: - filter->offset = 0; - filter->offset_orig = 0; - if (filter->adapter_parsing) { - gst_adapter_clear (filter->adapter_parsing); - } - if (filter->adapter_holding) { - gst_adapter_clear (filter->adapter_holding); - } - if (filter->common.state != MT_STATE_PARSED) { - /* cleanup parser */ - gst_metadata_common_dispose (&filter->common); - gst_metadata_common_init (&filter->common, FALSE, filter->options); - } - break; - case GST_STATE_CHANGE_READY_TO_NULL: - gst_metadata_mux_dispose_members (filter); - break; - default: - break; - } + ret = gst_pad_event_default (pad, event); -done: + gst_object_unref (filter); return ret; + } /* @@ -1294,7 +483,7 @@ gboolean gst_metadata_mux_plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (gst_metadata_mux_debug, "metadatamux", 0, - "Metadata demuxer"); + "Metadata muxer"); return gst_element_register (plugin, "metadatamux", GST_RANK_NONE, GST_TYPE_METADATA_MUX); |