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add user_data src pad

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Original commit message from CVS:
add user_data src pad
This commit is contained in:
David I. Lehn 2002-12-19 07:45:11 +00:00
parent 0a6c2190d5
commit 91ab6b0ca9
2 changed files with 38 additions and 12 deletions
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36
ext/mpeg2dec/gstmpeg2dec.c
View file

@ -30,8 +30,8 @@ static GstElementDetails gst_mpeg2dec_details = {
"GPL",
"Uses libmpeg2 to decode MPEG video streams",
VERSION,
"Wim Taymans <wim.taymans@chello.be>, "
"(C) 2002",
"Wim Taymans <wim.taymans@chello.be>",
"(C) 2002"
};
/* Mpeg2dec signals and args */
@ -70,6 +70,17 @@ GST_PAD_TEMPLATE_FACTORY (src_template_factory,
)
);
GST_PAD_TEMPLATE_FACTORY (user_data_template_factory,
"user_data",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW (
"mpeg2dec_user_data",
"application/octet-stream",
NULL
)
);
GST_PAD_TEMPLATE_FACTORY (sink_template_factory,
"sink",
GST_PAD_SINK,
@ -186,6 +197,10 @@ gst_mpeg2dec_init (GstMpeg2dec *mpeg2dec)
gst_pad_set_query_function (mpeg2dec->srcpad, GST_DEBUG_FUNCPTR (gst_mpeg2dec_src_query));
gst_pad_set_convert_function (mpeg2dec->srcpad, GST_DEBUG_FUNCPTR (gst_mpeg2dec_convert_src));
mpeg2dec->userdatapad = gst_pad_new_from_template (
GST_PAD_TEMPLATE_GET (user_data_template_factory), "user_data");
gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->userdatapad);
/* initialize the mpeg2dec decoder state */
mpeg2dec->decoder = mpeg2_init ();
@ -506,6 +521,22 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
state);
break;
}
/* If there is user data and user data pad is usable, push it.
*
* FIXME: should pass more information such as state the user data is from
*/
if (info->user_data_len > 0) {
if (GST_PAD_IS_USABLE (mpeg2dec->userdatapad)) {
GstBuffer *udbuf = gst_buffer_new_and_alloc (info->user_data_len);
memcpy (GST_BUFFER_DATA (udbuf), info->user_data, info->user_data_len);
GST_BUFFER_SIZE (udbuf) = info->user_data_len;
// FIXME
//GST_BUFFER_TIMESTAMP (udbuf) = mpeg2dec->...
//...
gst_pad_push (mpeg2dec->userdatapad, udbuf);
}
}
}
gst_buffer_unref(buf);
}
@ -915,6 +946,7 @@ plugin_init (GModule *module, GstPlugin *plugin)
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (src_template_factory));
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (sink_template_factory));
gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (user_data_template_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));

14
ext/mpeg2dec/gstmpeg2dec.h
View file

@ -26,10 +26,7 @@
#include <gst/gst.h>
#include <mpeg2.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
G_BEGIN_DECLS
#define GST_TYPE_MPEG2DEC \
(gst_mpeg2dec_get_type())
@ -60,7 +57,8 @@ struct _GstMpeg2dec {
/* pads */
GstPad *sinkpad,
*srcpad;
*srcpad,
*userdatapad;
GstBufferPool *peerpool;
mpeg2dec_t *decoder;
@ -93,10 +91,6 @@ struct _GstMpeg2decClass {
GType gst_mpeg2dec_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
G_END_DECLS
#endif /* __GST_MPEG2DEC_H__ */