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ext/bz2/gstbz2enc.c: Accepd "ANY" caps. Use "x-bzip" instead of "x-bz2".

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Original commit message from CVS:
Reviewed by: Edward Hervey <edward@fluendo.com>
* ext/bz2/gstbz2enc.c: Accepd "ANY" caps. Use "x-bzip" instead of
"x-bz2".
* ext/bz2/gstbz2dec.c: Use "x-bzip" instead of "x-bz2". Initial
caps are "ANY".
(gst_bz2dec_chain): Configure the source pad if we can figure out
the mime type of the decompressed data.
(gst_bz2dec_[get,set]_property):
(gst_bz2dec_class_init: New property "first_buffer_size".
This commit is contained in:
Edward Hervey 2006-02-06 18:21:53 +00:00
parent 9ed9318af7
commit 2150a63446
3 changed files with 119 additions and 7 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2006-02-06 Lutz Mueller <lutz@topfrose.de>
Reviewed by: Edward Hervey <edward@fluendo.com>
* ext/bz2/gstbz2enc.c: Accepd "ANY" caps. Use "x-bzip" instead of
"x-bz2".
* ext/bz2/gstbz2dec.c: Use "x-bzip" instead of "x-bz2". Initial
caps are "ANY".
(gst_bz2dec_chain): Configure the source pad if we can figure out
the mime type of the decompressed data.
(gst_bz2dec_[get,set]_property):
(gst_bz2dec_class_init: New property "first_buffer_size".
2006-02-06 Wim Taymans <wim@fluendo.com>
* gst/qtdemux/qtdemux.c: (gst_qtdemux_handle_src_query),

108
ext/bz2/gstbz2dec.c
View file

@ -32,16 +32,17 @@ static GstElementDetails bz2dec_details = GST_ELEMENT_DETAILS ("BZ2 decoder",
static GstStaticPadTemplate sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-bz2"));
GST_STATIC_CAPS ("application/x-bzip"));
static GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/octet-stream"));
GST_STATIC_CAPS ("ANY"));
struct _GstBz2dec
{
GstElement parent;
/* Properties */
guint first_buffer_size;
guint buffer_size;
gboolean ready;
@ -56,11 +57,13 @@ struct _GstBz2decClass
GST_BOILERPLATE (GstBz2dec, gst_bz2dec, GstElement, GST_TYPE_ELEMENT);
#define DEFAULT_FIRST_BUFFER_SIZE 1024
#define DEFAULT_BUFFER_SIZE 1024
enum
{
PROP_0,
PROP_FIRST_BUFFER_SIZE,
PROP_BUFFER_SIZE
};
@ -95,14 +98,81 @@ gst_bz2dec_decompress_init (GstBz2dec * b)
}
}
typedef struct
{
guint best_probability;
GstCaps *caps;
GstBuffer *buffer;
} SimpleTypeFind;
guint8 *
simple_find_peek (gpointer data, gint64 offset, guint size)
{
SimpleTypeFind *find = (SimpleTypeFind *) data;
if (offset < 0)
return NULL;
if (GST_BUFFER_SIZE (find->buffer) >= offset + size) {
return GST_BUFFER_DATA (find->buffer) + offset;
}
return NULL;
}
static void
simple_find_suggest (gpointer data, guint probability, const GstCaps * caps)
{
SimpleTypeFind *find = (SimpleTypeFind *) data;
if (probability > find->best_probability) {
GstCaps *copy = gst_caps_copy (caps);
gst_caps_replace (&find->caps, copy);
gst_caps_unref (copy);
find->best_probability = probability;
}
}
static GstCaps *
gst_bz2dec_do_typefind (GstBz2dec * b, GstBuffer * buffer)
{
GList *walk, *type_list;
SimpleTypeFind find;
GstTypeFind gst_find;
walk = type_list = gst_type_find_factory_get_list ();
find.buffer = buffer;
find.best_probability = 0;
find.caps = NULL;
gst_find.data = &find;
gst_find.peek = simple_find_peek;
gst_find.get_length = NULL;
gst_find.suggest = simple_find_suggest;
while (walk) {
GstTypeFindFactory *factory = GST_TYPE_FIND_FACTORY (walk->data);
gst_type_find_factory_call_function (factory, &gst_find);
if (find.best_probability >= GST_TYPE_FIND_MAXIMUM)
break;
walk = g_list_next (walk);
}
gst_plugin_feature_list_free (type_list);
if (find.best_probability > 0) {
GST_DEBUG ("Found caps %s" GST_PTR_FORMAT " with buf size %u", find.caps,
GST_BUFFER_SIZE (buffer));
return find.caps;
}
return NULL;
}
static GstFlowReturn
gst_bz2dec_chain (GstPad * pad, GstBuffer * in)
{
GstBz2dec *b = GST_BZ2DEC (gst_pad_get_parent (pad));
GstPad *src = gst_element_get_pad (GST_ELEMENT (b), "src");
int r = BZ_OK;
GstFlowReturn fr;
guint n;
gst_object_unref (b);
gst_object_unref (src);
@ -116,12 +186,19 @@ gst_bz2dec_chain (GstPad * pad, GstBuffer * in)
while (r != BZ_STREAM_END) {
GstBuffer *out;
GstCaps *caps;
guint n;
GstFlowReturn fr;
if ((fr = gst_pad_alloc_buffer (src, b->offset, b->buffer_size,
/* Create the output buffer */
if ((fr = gst_pad_alloc_buffer (src, b->offset,
b->offset ? b->buffer_size : b->first_buffer_size,
GST_PAD_CAPS (pad), &out)) != GST_FLOW_OK) {
gst_bz2dec_decompress_init (b);
return fr;
}
/* Decode */
b->stream.next_out = (char *) GST_BUFFER_DATA (out);
b->stream.avail_out = GST_BUFFER_SIZE (out);
r = BZ2_bzDecompress (&b->stream);
@ -138,6 +215,15 @@ gst_bz2dec_chain (GstPad * pad, GstBuffer * in)
}
GST_BUFFER_SIZE (out) -= b->stream.avail_out;
GST_BUFFER_OFFSET (out) = b->stream.total_out_lo32 - GST_BUFFER_SIZE (out);
/* Configure source pad (if necessary) */
if (!b->offset && (caps = gst_bz2dec_do_typefind (b, out))) {
gst_buffer_set_caps (out, caps);
gst_pad_set_caps (src, caps);
gst_caps_unref (caps);
}
/* Push data */
n = GST_BUFFER_SIZE (out);
if ((fr = gst_pad_push (src, out)) != GST_FLOW_OK) {
gst_buffer_unref (out);
@ -154,6 +240,7 @@ gst_bz2dec_init (GstBz2dec * b, GstBz2decClass * klass)
{
GstPad *pad;
b->first_buffer_size = DEFAULT_FIRST_BUFFER_SIZE;
b->buffer_size = DEFAULT_BUFFER_SIZE;
pad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
@ -200,6 +287,9 @@ gst_bz2dec_get_property (GObject * object, guint prop_id,
case PROP_BUFFER_SIZE:
g_value_set_uint (value, b->buffer_size);
break;
case PROP_FIRST_BUFFER_SIZE:
g_value_set_uint (value, b->first_buffer_size);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
@ -215,6 +305,9 @@ gst_bz2dec_set_property (GObject * object, guint prop_id,
case PROP_BUFFER_SIZE:
b->buffer_size = g_value_get_uint (value);
break;
case PROP_FIRST_BUFFER_SIZE:
b->first_buffer_size = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
@ -229,6 +322,11 @@ gst_bz2dec_class_init (GstBz2decClass * klass)
gobject_class->get_property = gst_bz2dec_get_property;
gobject_class->set_property = gst_bz2dec_set_property;
g_object_class_install_property (G_OBJECT_CLASS (klass),
PROP_FIRST_BUFFER_SIZE, g_param_spec_uint ("first_buffer_size",
"Size of first buffer", "Size of first buffer (used to determine the "
"mime type of the uncompressed data)", 1, G_MAXUINT,
DEFAULT_FIRST_BUFFER_SIZE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BUFFER_SIZE,
g_param_spec_uint ("buffer_size", "Buffer size", "Buffer size",
1, G_MAXUINT, DEFAULT_BUFFER_SIZE, G_PARAM_READWRITE));

4
ext/bz2/gstbz2enc.c
View file

@ -32,10 +32,10 @@ static GstElementDetails bz2enc_details = GST_ELEMENT_DETAILS ("BZ2 encoder",
static GstStaticPadTemplate sink_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/octet-stream"));
GST_STATIC_CAPS ("ANY"));
static GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-bz2"));
GST_STATIC_CAPS ("application/x-bzip"));
#define DEFAULT_BLOCK_SIZE 6
#define DEFAULT_BUFFER_SIZE 1024