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ext/libpng/: Added snapshot property to pngenc. removed g_print from pngdec

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Original commit message from CVS:
* ext/libpng/gstpngdec.c: (gst_pngdec_src_getcaps):
* ext/libpng/gstpngenc.c: (gst_pngenc_class_init),
(gst_pngenc_init), (gst_pngenc_chain), (gst_pngenc_get_property),
(gst_pngenc_set_property):
* ext/libpng/gstpngenc.h:
Added snapshot property to pngenc.
removed g_print from pngdec
This commit is contained in:
Wim Taymans 2004-07-27 09:59:17 +00:00
parent 5e4e09cd5c
commit c754da7a4c
4 changed files with 76 additions and 9 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2004-07-27 Wim Taymans <wim@fluendo.com>
* ext/libpng/gstpngdec.c: (gst_pngdec_src_getcaps):
* ext/libpng/gstpngenc.c: (gst_pngenc_class_init),
(gst_pngenc_init), (gst_pngenc_chain), (gst_pngenc_get_property),
(gst_pngenc_set_property):
* ext/libpng/gstpngenc.h:
Added snapshot property to pngenc.
removed g_print from pngdec
2004-07-27 Steve Lhomme <steve.lhomme@free.fr>
* gst/ac3parse/ac3parse.vcproj

1
ext/libpng/gstpngdec.c
View file

@ -210,7 +210,6 @@ gst_pngdec_src_getcaps (GstPad * pad)
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure = gst_caps_get_structure (caps, i);
g_print ("%d %d\n", pngdec->width, pngdec->height);
if (pngdec->width != -1) {
gst_structure_set (structure, "width", G_TYPE_INT, pngdec->width, NULL);
}

70
ext/libpng/gstpngenc.c
View file

@ -42,14 +42,21 @@ enum
LAST_SIGNAL
};
#define DEFAULT_SNAPSHOT TRUE
enum
{
ARG_0
ARG_0,
ARG_SNAPSHOT
};
static void gst_pngenc_base_init (gpointer g_class);
static void gst_pngenc_class_init (GstPngEncClass * klass);
static void gst_pngenc_init (GstPngEnc * pngenc);
static void gst_pngenc_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_pngenc_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void gst_pngenc_chain (GstPad * pad, GstData * _data);
@ -141,6 +148,14 @@ gst_pngenc_class_init (GstPngEncClass * klass)
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (gobject_class, ARG_SNAPSHOT,
g_param_spec_boolean ("snapshot", "Snapshot",
"Send EOS after encoding a frame, usefull for snapshots",
DEFAULT_SNAPSHOT, (GParamFlags) G_PARAM_READWRITE));
gstelement_class->get_property = gst_pngenc_get_property;
gstelement_class->set_property = gst_pngenc_set_property;
}
@ -182,9 +197,10 @@ gst_pngenc_init (GstPngEnc * pngenc)
pngenc->png_struct_ptr = NULL;
pngenc->png_info_ptr = NULL;
pngenc->snapshot = DEFAULT_SNAPSHOT;
}
void
static void
user_flush_data (png_structp png_ptr)
{
GstPngEnc *pngenc;
@ -195,7 +211,7 @@ user_flush_data (png_structp png_ptr)
}
void
static void
user_write_data (png_structp png_ptr, png_bytep data, png_uint_32 length)
{
GstBuffer *buffer;
@ -225,7 +241,6 @@ gst_pngenc_chain (GstPad * pad, GstData * _data)
GstPngEnc *pngenc;
gint row_index;
png_byte *row_pointers[MAX_HEIGHT];
GstEvent *event;
pngenc = GST_PNGENC (gst_pad_get_parent (pad));
@ -283,12 +298,53 @@ gst_pngenc_chain (GstPad * pad, GstData * _data)
png_destroy_info_struct (pngenc->png_struct_ptr, &pngenc->png_info_ptr);
png_destroy_write_struct (&pngenc->png_struct_ptr, (png_infopp) NULL);
gst_buffer_unref (buf);
gst_pad_push (pngenc->srcpad, GST_DATA (pngenc->buffer_out));
if (pngenc->snapshot) {
/* send EOS event, since a frame has been pushed out */
event = gst_event_new (GST_EVENT_EOS);
gst_pad_push (pngenc->srcpad, GST_DATA (event));
GstEvent *event = gst_event_new (GST_EVENT_EOS);
gst_buffer_unref (buf);
gst_pad_push (pngenc->srcpad, GST_DATA (event));
gst_element_set_eos (GST_ELEMENT (pngenc));
}
}
static void
gst_pngenc_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstPngEnc *pngenc;
pngenc = GST_PNGENC (object);
switch (prop_id) {
case ARG_SNAPSHOT:
g_value_set_boolean (value, pngenc->snapshot);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_pngenc_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstPngEnc *pngenc;
pngenc = GST_PNGENC (object);
switch (prop_id) {
case ARG_SNAPSHOT:
pngenc->snapshot = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}

2
ext/libpng/gstpngenc.h
View file

@ -53,6 +53,8 @@ struct _GstPngEnc
gint width;
gint height;
gint bpp;
gboolean snapshot;
};
struct _GstPngEncClass