mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-02 20:55:55 +00:00
element-maker: Update somewhat for 1.0
Only converted basetransform for the moment. It's probably easier to write templates from scratch from the documentation.
This commit is contained in:
David Schleef
parent
250555a7de
commit
f790fcbfa6
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@ -6,79 +6,144 @@ GST_TYPE_BASE_TRANSFORM
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% pads
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sinkpad-simple srcpad-simple
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% pkg-config
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gstreamer-base-0.10
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gstreamer-base-1.0
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% pads
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sinkpad-simple srcpad-simple
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% includes
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#include <gst/base/gstbasetransform.h>
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% prototypes
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static GstCaps *gst_replace_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps);
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static void
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static GstCaps *gst_replace_transform_caps (GstBaseTransform *trans,
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GstPadDirection direction, GstCaps *caps, GstCaps *filter);
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static GstCaps *
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gst_replace_fixate_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
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static gboolean
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gst_replace_transform_size (GstBaseTransform * trans,
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static gboolean gst_replace_accept_caps (GstBaseTransform *trans,
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GstPadDirection direction, GstCaps *caps);
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static gboolean gst_replace_set_caps (GstBaseTransform *trans, GstCaps *incaps,
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GstCaps *outcaps);
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static gboolean gst_replace_query (GstBaseTransform *trans, GstPadDirection direction,
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GstQuery *query);
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static gboolean gst_replace_decide_allocation (GstBaseTransform *trans,
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GstQuery *query);
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static gboolean gst_replace_filter_meta (GstBaseTransform *trans, GstQuery *query,
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GType api, const GstStructure *params);
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static gboolean gst_replace_propose_allocation (GstBaseTransform *trans,
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GstQuery *decide_query, GstQuery *query);
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static gboolean gst_replace_transform_size (GstBaseTransform * trans,
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GstPadDirection direction,
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GstCaps * caps, guint size, GstCaps * othercaps, guint * othersize);
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static gboolean
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gst_replace_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
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guint * size);
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static gboolean
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gst_replace_set_caps (GstBaseTransform * trans, GstCaps * incaps,
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GstCaps * outcaps);
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GstCaps * caps, gsize size, GstCaps * othercaps, gsize * othersize);
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static gboolean gst_replace_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, gsize * size);
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static gboolean gst_replace_start (GstBaseTransform * trans);
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static gboolean gst_replace_stop (GstBaseTransform * trans);
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static gboolean gst_replace_event (GstBaseTransform * trans, GstEvent * event);
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static gboolean gst_replace_sink_event (GstBaseTransform * trans,
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GstEvent * event);
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static gboolean gst_replace_src_event (GstBaseTransform * trans,
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GstEvent * event);
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static GstFlowReturn gst_replace_prepare_output_buffer (
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GstBaseTransform * trans, GstBuffer *input, GstBuffer **outbuf);
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static gboolean gst_replace_copy_metadata (GstBaseTransform *trans,
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GstBuffer *input, GstBuffer *outbuf);
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static gboolean gst_replace_transform_meta (GstBaseTransform *trans,
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GstBuffer *outbuf, GstMeta *meta, GstBuffer *inbuf);
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static void
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gst_replace_before_transform (GstBaseTransform * trans, GstBuffer * buffer);
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static GstFlowReturn
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gst_replace_transform (GstBaseTransform * trans, GstBuffer * inbuf,
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GstBuffer * outbuf);
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static GstFlowReturn
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gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf);
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static GstFlowReturn
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gst_replace_prepare_output_buffer (GstBaseTransform * trans,
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GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
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static gboolean
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gst_replace_src_event (GstBaseTransform * trans, GstEvent * event);
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static void
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gst_replace_before_transform (GstBaseTransform * trans, GstBuffer * buffer);
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% declare-class
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GstBaseTransformClass *base_transform_class = GST_BASE_TRANSFORM_CLASS (klass);
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% set-methods
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base_transform_class->transform_caps = GST_DEBUG_FUNCPTR (gst_replace_transform_caps);
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base_transform_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_replace_fixate_caps);
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base_transform_class->accept_caps = GST_DEBUG_FUNCPTR (gst_replace_accept_caps);
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base_transform_class->set_caps = GST_DEBUG_FUNCPTR (gst_replace_set_caps);
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base_transform_class->query = GST_DEBUG_FUNCPTR (gst_replace_query);
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base_transform_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_replace_decide_allocation);
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base_transform_class->filter_meta = GST_DEBUG_FUNCPTR (gst_replace_filter_meta);
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base_transform_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_replace_propose_allocation);
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base_transform_class->transform_size = GST_DEBUG_FUNCPTR (gst_replace_transform_size);
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base_transform_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_replace_get_unit_size);
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base_transform_class->set_caps = GST_DEBUG_FUNCPTR (gst_replace_set_caps);
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base_transform_class->start = GST_DEBUG_FUNCPTR (gst_replace_start);
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base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_replace_stop);
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base_transform_class->event = GST_DEBUG_FUNCPTR (gst_replace_event);
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base_transform_class->sink_event = GST_DEBUG_FUNCPTR (gst_replace_sink_event);
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base_transform_class->src_event = GST_DEBUG_FUNCPTR (gst_replace_src_event);
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base_transform_class->prepare_output_buffer = GST_DEBUG_FUNCPTR (gst_replace_prepare_output_buffer);
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base_transform_class->copy_metadata = GST_DEBUG_FUNCPTR (gst_replace_copy_metadata);
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base_transform_class->transform_meta = GST_DEBUG_FUNCPTR (gst_replace_transform_meta);
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base_transform_class->before_transform = GST_DEBUG_FUNCPTR (gst_replace_before_transform);
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base_transform_class->transform = GST_DEBUG_FUNCPTR (gst_replace_transform);
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base_transform_class->transform_ip = GST_DEBUG_FUNCPTR (gst_replace_transform_ip);
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base_transform_class->prepare_output_buffer = GST_DEBUG_FUNCPTR (gst_replace_prepare_output_buffer);
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base_transform_class->src_event = GST_DEBUG_FUNCPTR (gst_replace_src_event);
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base_transform_class->before_transform = GST_DEBUG_FUNCPTR (gst_replace_before_transform);
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% methods
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static GstCaps *
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gst_replace_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps)
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gst_replace_transform_caps (GstBaseTransform *trans,
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GstPadDirection direction, GstCaps *caps, GstCaps *filter)
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{
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return NULL;
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}
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static void
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static GstCaps *
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gst_replace_fixate_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
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{
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return NULL;
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}
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static gboolean
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gst_replace_accept_caps (GstBaseTransform *trans,
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GstPadDirection direction, GstCaps *caps)
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{
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return TRUE;
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}
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static gboolean
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gst_replace_set_caps (GstBaseTransform * trans, GstCaps * incaps,
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GstCaps * outcaps)
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{
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return FALSE;
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}
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static gboolean
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gst_replace_query (GstBaseTransform *trans, GstPadDirection direction,
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GstQuery *query)
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{
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return TRUE;
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}
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static gboolean
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gst_replace_decide_allocation (GstBaseTransform *trans, GstQuery *query)
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{
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return TRUE;
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}
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static gboolean
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gst_replace_filter_meta (GstBaseTransform *trans, GstQuery *query,
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GType api, const GstStructure *params)
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{
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return TRUE;
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}
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static gboolean
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gst_replace_propose_allocation (GstBaseTransform *trans,
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GstQuery *decide_query, GstQuery *query)
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{
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return TRUE;
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}
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static gboolean
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gst_replace_transform_size (GstBaseTransform * trans,
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GstPadDirection direction,
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GstCaps * caps, guint size, GstCaps * othercaps, guint * othersize)
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GstCaps * caps, gsize size, GstCaps * othercaps, gsize * othersize)
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{
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return FALSE;
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@ -86,15 +151,7 @@ gst_replace_transform_size (GstBaseTransform * trans,
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static gboolean
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gst_replace_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
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guint * size)
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{
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return FALSE;
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}
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static gboolean
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gst_replace_set_caps (GstBaseTransform * trans, GstCaps * incaps,
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GstCaps * outcaps)
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gsize * size)
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{
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return FALSE;
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@ -115,12 +172,49 @@ gst_replace_stop (GstBaseTransform * trans)
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}
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static gboolean
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gst_replace_event (GstBaseTransform * trans, GstEvent * event)
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gst_replace_sink_event (GstBaseTransform * trans, GstEvent * event)
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{
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return FALSE;
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}
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static gboolean
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gst_replace_src_event (GstBaseTransform * trans, GstEvent * event)
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{
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return FALSE;
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}
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static GstFlowReturn
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gst_replace_prepare_output_buffer (GstBaseTransform * trans,
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GstBuffer * input, GstBuffer ** buf)
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{
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return GST_FLOW_ERROR;
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}
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static gboolean
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gst_replace_copy_metadata (GstBaseTransform *trans,
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GstBuffer *input, GstBuffer *outbuf)
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{
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return TRUE;
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}
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static gboolean
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gst_replace_transform_meta (GstBaseTransform *trans,
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GstBuffer *outbuf, GstMeta *meta, GstBuffer *inbuf)
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{
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return TRUE;
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}
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static void
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gst_replace_before_transform (GstBaseTransform * trans, GstBuffer * buffer)
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{
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}
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static GstFlowReturn
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gst_replace_transform (GstBaseTransform * trans, GstBuffer * inbuf,
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GstBuffer * outbuf)
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@ -136,24 +230,4 @@ gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
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return GST_FLOW_ERROR;
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}
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static GstFlowReturn
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gst_replace_prepare_output_buffer (GstBaseTransform * trans,
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GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf)
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{
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return GST_FLOW_ERROR;
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}
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static gboolean
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gst_replace_src_event (GstBaseTransform * trans, GstEvent * event)
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{
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return FALSE;
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}
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static void
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gst_replace_before_transform (GstBaseTransform * trans, GstBuffer * buffer)
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{
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}
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% end
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@ -55,7 +55,7 @@ gst_replace_dispose (GObject * object)
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/* clean up as possible. may be called multiple times */
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G_OBJECT_CLASS (parent_class)->dispose (object);
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G_OBJECT_CLASS (gst_replace_parent_class)->dispose (object);
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}
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void
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@ -65,7 +65,7 @@ gst_replace_finalize (GObject * object)
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/* clean up object here */
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G_OBJECT_CLASS (parent_class)->finalize (object);
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G_OBJECT_CLASS (gst_replace_parent_class)->finalize (object);
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}
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% end
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@ -12,7 +12,7 @@ GST_STATIC_PAD_TEMPLATE ("sink",
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);
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% base-init
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gst_element_class_add_pad_template (element_class,
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gst_element_class_add_pad_template (GST_ELEMENT_CLASS(klass),
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gst_static_pad_template_get (&gst_replace_sink_template));
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% instance-init
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@ -12,7 +12,7 @@ GST_STATIC_PAD_TEMPLATE ("src",
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);
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% base-init
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gst_element_class_add_pad_template (element_class,
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gst_element_class_add_pad_template (GST_ELEMENT_CLASS(klass),
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gst_static_pad_template_get (&gst_replace_src_template));
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% instance-init
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@ -168,30 +168,9 @@ cat <<EOF
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/* class initialization */
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#define DEBUG_INIT(bla) \\
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GST_DEBUG_CATEGORY_INIT (gst_replace_debug_category, "replace", 0, \\
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"debug category for replace element");
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GST_BOILERPLATE_FULL (GstReplace, gst_replace, GstBaseReplace,
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GST_TYPE_BASE_REPLACE, DEBUG_INIT);
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static void
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gst_replace_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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EOF
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for each in $pads
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do
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grep -A 10000 '^% base-init' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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gst_element_class_set_static_metadata (element_class, "FIXME Long name",
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"Generic", "FIXME Description", "$REAL_NAME <$EMAIL_ADDRESS>");
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}
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G_DEFINE_TYPE_WITH_CODE (GstReplace, gst_replace, GST_TYPE_BASE_REPLACE,
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GST_DEBUG_CATEGORY_INIT (gst_replace_debug_category, "replace", 0,
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"debug category for replace element"));
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static void
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gst_replace_class_init (GstReplaceClass * klass)
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@ -200,7 +179,22 @@ EOF
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grep -A 10000 '^% declare-class' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% declare-class' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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echo
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cat <<EOF
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/* Setting up pads and setting metadata should be moved to
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base_class_init if you intend to subclass this class. */
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EOF
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for each in $pads
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do
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grep -A 10000 '^% base-init' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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gst_element_class_set_static_metadata (GST_ELEMENT_CLASS(klass),
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"FIXME Long name", "Generic", "FIXME Description",
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"$REAL_NAME <$EMAIL_ADDRESS>");
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EOF
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grep -A 10000 '^% set-methods' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% set-methods' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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@ -210,7 +204,7 @@ cat <<EOF
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}
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static void
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gst_replace_init (GstReplace * replace, GstReplaceClass * replace_class)
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gst_replace_init (GstReplace *replace)
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{
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EOF
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@ -377,12 +371,12 @@ gst-indent $gstreplace.c
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echo pkg is $pkg
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gcc -Wall -fPIC $CPPFLAGS $(pkg-config --cflags gstreamer-0.10 $pkg) -c -o $gstreplace.o $gstreplace.c
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gcc -Wall -fPIC $CPPFLAGS $(pkg-config --cflags gstreamer-1.0 $pkg) -c -o $gstreplace.o $gstreplace.c
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if test $? -ne 0; then
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exit 1
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fi
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gcc -shared -o $gstreplace.so $gstreplace.o $(pkg-config --libs gstreamer-0.10 $pkg)
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gcc -shared -o $gstreplace.so $gstreplace.o $(pkg-config --libs gstreamer-1.0 $pkg)
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if test $? -ne 0; then
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exit 1
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fi
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