static GstBuffer *
gst_fake_src_alloc_buffer (GstFakeSrc * src, guint size)
{
GstBuffer *buf;
gpointer data;
gboolean do_prepare = FALSE;
buf = gst_buffer_new ();
if (size != 0) {
switch (src->filltype) {
case FAKE_SRC_FILLTYPE_NOTHING:
data = g_malloc (size);
break;
case FAKE_SRC_FILLTYPE_ZERO:
data = g_malloc0 (size);
break;
case FAKE_SRC_FILLTYPE_RANDOM:
case FAKE_SRC_FILLTYPE_PATTERN:
case FAKE_SRC_FILLTYPE_PATTERN_CONT:
default:
data = g_malloc (size);
do_prepare = TRUE;
break;
}
if (do_prepare)
gst_fake_src_prepare_buffer (src, data, size);
gst_buffer_append_memory (buf,
gst_memory_new_wrapped (0, data, size, 0, size, data, g_free));
}
return buf;
}
static GstBuffer *
gst_fake_src_alloc_buffer (GstFakeSrc * src, guint size)
{
GstBuffer *buf;
buf = gst_buffer_new ();
GST_BUFFER_SIZE (buf) = size;
if (size != 0) {
switch (src->filltype) {
case FAKE_SRC_FILLTYPE_NOTHING:
GST_BUFFER_DATA (buf) = g_malloc (size);
GST_BUFFER_MALLOCDATA (buf) = GST_BUFFER_DATA (buf);
break;
case FAKE_SRC_FILLTYPE_ZERO:
GST_BUFFER_DATA (buf) = g_malloc0 (size);
GST_BUFFER_MALLOCDATA (buf) = GST_BUFFER_DATA (buf);
break;
case FAKE_SRC_FILLTYPE_RANDOM:
case FAKE_SRC_FILLTYPE_PATTERN:
case FAKE_SRC_FILLTYPE_PATTERN_CONT:
default:
GST_BUFFER_DATA (buf) = g_malloc (size);
GST_BUFFER_MALLOCDATA (buf) = GST_BUFFER_DATA (buf);
gst_fake_src_prepare_buffer (src, buf);
break;
}
}
return buf;
}
static GstBuffer *
gst_fake_src_create_buffer (GstFakeSrc * src, gsize * bufsize)
{
GstBuffer *buf;
gsize size = gst_fake_src_get_size (src);
gboolean dump = src->dump;
GstMapInfo info;
*bufsize = size;
switch (src->data) {
case FAKE_SRC_DATA_ALLOCATE:
buf = gst_fake_src_alloc_buffer (src, size);
break;
case FAKE_SRC_DATA_SUBBUFFER:
/* see if we have a parent to subbuffer */
if (!src->parent) {
gst_fake_src_alloc_parent (src);
g_assert (src->parent);
}
/* see if it's large enough */
if ((src->parentsize - src->parentoffset) >= size) {
buf =
gst_buffer_copy_region (src->parent, GST_BUFFER_COPY_ALL,
src->parentoffset, size);
src->parentoffset += size;
} else {
/* the parent is useless now */
gst_buffer_unref (src->parent);
src->parent = NULL;
/* try again (this will allocate a new parent) */
return gst_fake_src_create_buffer (src, bufsize);
}
gst_buffer_map (buf, &info, GST_MAP_WRITE);
gst_fake_src_prepare_buffer (src, info.data, info.size);
gst_buffer_unmap (buf, &info);
break;
default:
g_warning ("fakesrc: dunno how to allocate buffers !");
buf = gst_buffer_new ();
break;
}
if (dump) {
gst_buffer_map (buf, &info, GST_MAP_READ);
gst_util_dump_mem (info.data, info.size);
gst_buffer_unmap (buf, &info);
}
return buf;
}
static GstBuffer *
gst_fake_src_create_buffer (GstFakeSrc * src)
{
GstBuffer *buf;
guint size;
gboolean dump = src->dump;
size = gst_fake_src_get_size (src);
if (size == 0)
return gst_buffer_new ();
switch (src->data) {
case FAKE_SRC_DATA_ALLOCATE:
buf = gst_fake_src_alloc_buffer (src, size);
break;
case FAKE_SRC_DATA_SUBBUFFER:
/* see if we have a parent to subbuffer */
if (!src->parent) {
gst_fake_src_alloc_parent (src);
g_assert (src->parent);
}
/* see if it's large enough */
if ((GST_BUFFER_SIZE (src->parent) - src->parentoffset) >= size) {
buf = gst_buffer_create_sub (src->parent, src->parentoffset, size);
src->parentoffset += size;
} else {
/* the parent is useless now */
gst_buffer_unref (src->parent);
src->parent = NULL;
/* try again (this will allocate a new parent) */
return gst_fake_src_create_buffer (src);
}
gst_fake_src_prepare_buffer (src, buf);
break;
default:
g_warning ("fakesrc: dunno how to allocate buffers !");
buf = gst_buffer_new ();
break;
}
if (dump) {
gst_util_dump_mem (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
}
return buf;
}