diff options
Diffstat (limited to 'tools/element-templates/basetransform')
| -rw-r--r-- | tools/element-templates/basetransform | 196 |
1 files changed, 129 insertions, 67 deletions
diff --git a/tools/element-templates/basetransform b/tools/element-templates/basetransform index 51633e56a..ed84ffd6d 100644 --- a/tools/element-templates/basetransform +++ b/tools/element-templates/basetransform @@ -4,34 +4,32 @@ GstBaseTransform % TYPE_CLASS_NAME GST_TYPE_BASE_TRANSFORM % pads -sinkpad-simple srcpad-simple +srcpad-simple +sinkpad-simple % pkg-config gstreamer-base-1.0 -% pads -sinkpad-simple srcpad-simple % includes #include <gst/base/gstbasetransform.h> % prototypes -static GstCaps *gst_replace_transform_caps (GstBaseTransform *trans, - GstPadDirection direction, GstCaps *caps, GstCaps *filter); -static GstCaps * -gst_replace_fixate_caps (GstBaseTransform * trans, +static GstCaps *gst_replace_transform_caps (GstBaseTransform * trans, + GstPadDirection direction, GstCaps * caps, GstCaps * filter); +static GstCaps *gst_replace_fixate_caps (GstBaseTransform * trans, GstPadDirection direction, GstCaps * caps, GstCaps * othercaps); -static gboolean gst_replace_accept_caps (GstBaseTransform *trans, - GstPadDirection direction, GstCaps *caps); -static gboolean gst_replace_set_caps (GstBaseTransform *trans, GstCaps *incaps, - GstCaps *outcaps); -static gboolean gst_replace_query (GstBaseTransform *trans, GstPadDirection direction, - GstQuery *query); -static gboolean gst_replace_decide_allocation (GstBaseTransform *trans, - GstQuery *query); -static gboolean gst_replace_filter_meta (GstBaseTransform *trans, GstQuery *query, - GType api, const GstStructure *params); -static gboolean gst_replace_propose_allocation (GstBaseTransform *trans, - GstQuery *decide_query, GstQuery *query); +static gboolean gst_replace_accept_caps (GstBaseTransform * trans, + GstPadDirection direction, GstCaps * caps); +static gboolean gst_replace_set_caps (GstBaseTransform * trans, + GstCaps * incaps, GstCaps * outcaps); +static gboolean gst_replace_query (GstBaseTransform * trans, + GstPadDirection direction, GstQuery * query); +static gboolean gst_replace_decide_allocation (GstBaseTransform * trans, + GstQuery * query); +static gboolean gst_replace_filter_meta (GstBaseTransform * trans, + GstQuery * query, GType api, const GstStructure * params); +static gboolean gst_replace_propose_allocation (GstBaseTransform * trans, + GstQuery * decide_query, GstQuery * query); static gboolean gst_replace_transform_size (GstBaseTransform * trans, - GstPadDirection direction, - GstCaps * caps, gsize size, GstCaps * othercaps, gsize * othersize); + GstPadDirection direction, GstCaps * caps, gsize size, GstCaps * othercaps, + gsize * othersize); static gboolean gst_replace_get_unit_size (GstBaseTransform * trans, GstCaps * caps, gsize * size); static gboolean gst_replace_start (GstBaseTransform * trans); @@ -40,19 +38,18 @@ static gboolean gst_replace_sink_event (GstBaseTransform * trans, GstEvent * event); static gboolean gst_replace_src_event (GstBaseTransform * trans, GstEvent * event); -static GstFlowReturn gst_replace_prepare_output_buffer ( - GstBaseTransform * trans, GstBuffer *input, GstBuffer **outbuf); -static gboolean gst_replace_copy_metadata (GstBaseTransform *trans, - GstBuffer *input, GstBuffer *outbuf); -static gboolean gst_replace_transform_meta (GstBaseTransform *trans, - GstBuffer *outbuf, GstMeta *meta, GstBuffer *inbuf); -static void -gst_replace_before_transform (GstBaseTransform * trans, GstBuffer * buffer); -static GstFlowReturn -gst_replace_transform (GstBaseTransform * trans, GstBuffer * inbuf, - GstBuffer * outbuf); -static GstFlowReturn -gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf); +static GstFlowReturn gst_replace_prepare_output_buffer (GstBaseTransform * + trans, GstBuffer * input, GstBuffer ** outbuf); +static gboolean gst_replace_copy_metadata (GstBaseTransform * trans, + GstBuffer * input, GstBuffer * outbuf); +static gboolean gst_replace_transform_meta (GstBaseTransform * trans, + GstBuffer * outbuf, GstMeta * meta, GstBuffer * inbuf); +static void gst_replace_before_transform (GstBaseTransform * trans, + GstBuffer * buffer); +static GstFlowReturn gst_replace_transform (GstBaseTransform * trans, + GstBuffer * inbuf, GstBuffer * outbuf); +static GstFlowReturn gst_replace_transform_ip (GstBaseTransform * trans, + GstBuffer * buf); % declare-class GstBaseTransformClass *base_transform_class = GST_BASE_TRANSFORM_CLASS (klass); % set-methods @@ -77,27 +74,36 @@ gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf); base_transform_class->transform = GST_DEBUG_FUNCPTR (gst_replace_transform); base_transform_class->transform_ip = GST_DEBUG_FUNCPTR (gst_replace_transform_ip); % methods - static GstCaps * -gst_replace_transform_caps (GstBaseTransform *trans, - GstPadDirection direction, GstCaps *caps, GstCaps *filter) +gst_replace_transform_caps (GstBaseTransform * trans, GstPadDirection direction, + GstCaps * caps, GstCaps * filter) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "transform_caps"); return NULL; } static GstCaps * -gst_replace_fixate_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * caps, GstCaps * othercaps) +gst_replace_fixate_caps (GstBaseTransform * trans, GstPadDirection direction, + GstCaps * caps, GstCaps * othercaps) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "fixate_caps"); return NULL; } static gboolean -gst_replace_accept_caps (GstBaseTransform *trans, - GstPadDirection direction, GstCaps *caps) +gst_replace_accept_caps (GstBaseTransform * trans, GstPadDirection direction, + GstCaps * caps) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "accept_caps"); + return TRUE; } @@ -105,106 +111,153 @@ static gboolean gst_replace_set_caps (GstBaseTransform * trans, GstCaps * incaps, GstCaps * outcaps) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "set_caps"); - return FALSE; + return TRUE; } static gboolean -gst_replace_query (GstBaseTransform *trans, GstPadDirection direction, - GstQuery *query) +gst_replace_query (GstBaseTransform * trans, GstPadDirection direction, + GstQuery * query) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "query"); return TRUE; } +/* decide allocation query for output buffers */ static gboolean -gst_replace_decide_allocation (GstBaseTransform *trans, GstQuery *query) +gst_replace_decide_allocation (GstBaseTransform * trans, GstQuery * query) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "decide_allocation"); return TRUE; } static gboolean -gst_replace_filter_meta (GstBaseTransform *trans, GstQuery *query, - GType api, const GstStructure *params) +gst_replace_filter_meta (GstBaseTransform * trans, GstQuery * query, GType api, + const GstStructure * params) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "filter_meta"); return TRUE; } +/* propose allocation query parameters for input buffers */ static gboolean -gst_replace_propose_allocation (GstBaseTransform *trans, - GstQuery *decide_query, GstQuery *query) +gst_replace_propose_allocation (GstBaseTransform * trans, + GstQuery * decide_query, GstQuery * query) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "propose_allocation"); return TRUE; } +/* transform size */ static gboolean -gst_replace_transform_size (GstBaseTransform * trans, - GstPadDirection direction, +gst_replace_transform_size (GstBaseTransform * trans, GstPadDirection direction, GstCaps * caps, gsize size, GstCaps * othercaps, gsize * othersize) { + GstReplace *replace = GST_REPLACE (trans); - return FALSE; + GST_DEBUG_OBJECT (replace, "transform_size"); + + return TRUE; } static gboolean gst_replace_get_unit_size (GstBaseTransform * trans, GstCaps * caps, gsize * size) { + GstReplace *replace = GST_REPLACE (trans); - return FALSE; + GST_DEBUG_OBJECT (replace, "get_unit_size"); + + return TRUE; } +/* states */ static gboolean gst_replace_start (GstBaseTransform * trans) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "start"); - return FALSE; + return TRUE; } static gboolean gst_replace_stop (GstBaseTransform * trans) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "stop"); - return FALSE; + return TRUE; } +/* sink and src pad event handlers */ static gboolean gst_replace_sink_event (GstBaseTransform * trans, GstEvent * event) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "sink_event"); - return FALSE; + return TRUE; } static gboolean gst_replace_src_event (GstBaseTransform * trans, GstEvent * event) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "src_event"); - return FALSE; + return TRUE; } static GstFlowReturn -gst_replace_prepare_output_buffer (GstBaseTransform * trans, - GstBuffer * input, GstBuffer ** buf) +gst_replace_prepare_output_buffer (GstBaseTransform * trans, GstBuffer * input, + GstBuffer ** outbuf) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "prepare_output_buffer"); - return GST_FLOW_ERROR; + return GST_FLOW_OK; } +/* metadata */ static gboolean -gst_replace_copy_metadata (GstBaseTransform *trans, - GstBuffer *input, GstBuffer *outbuf) +gst_replace_copy_metadata (GstBaseTransform * trans, GstBuffer * input, + GstBuffer * outbuf) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "copy_metadata"); return TRUE; } static gboolean -gst_replace_transform_meta (GstBaseTransform *trans, - GstBuffer *outbuf, GstMeta *meta, GstBuffer *inbuf) +gst_replace_transform_meta (GstBaseTransform * trans, GstBuffer * outbuf, + GstMeta * meta, GstBuffer * inbuf) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "transform_meta"); return TRUE; } @@ -212,22 +265,31 @@ gst_replace_transform_meta (GstBaseTransform *trans, static void gst_replace_before_transform (GstBaseTransform * trans, GstBuffer * buffer) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "before_transform"); } +/* transform */ static GstFlowReturn gst_replace_transform (GstBaseTransform * trans, GstBuffer * inbuf, GstBuffer * outbuf) { + GstReplace *replace = GST_REPLACE (trans); + + GST_DEBUG_OBJECT (replace, "transform"); - return GST_FLOW_ERROR; + return GST_FLOW_OK; } static GstFlowReturn gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf) { + GstReplace *replace = GST_REPLACE (trans); - return GST_FLOW_ERROR; -} + GST_DEBUG_OBJECT (replace, "transform_ip"); + return GST_FLOW_OK; +} % end |