static void
gst_mxf_mux_reset (GstMXFMux * mux)
{
GSList *sl;
while ((sl = mux->collect->data) != NULL) {
GstMXFMuxPad *cpad = (GstMXFMuxPad *) sl->data;
g_object_unref (cpad->adapter);
g_free (cpad->mapping_data);
gst_collect_pads_remove_pad (mux->collect, cpad->collect.pad);
}
mux->state = GST_MXF_MUX_STATE_HEADER;
mux->n_pads = 0;
if (mux->metadata) {
g_hash_table_destroy (mux->metadata);
mux->preface = NULL;
g_list_free (mux->metadata_list);
mux->metadata_list = NULL;
}
mux->metadata = mxf_metadata_hash_table_new ();
mxf_partition_pack_reset (&mux->partition);
mxf_primer_pack_reset (&mux->primer);
memset (&mux->min_edit_rate, 0, sizeof (MXFFraction));
mux->last_gc_timestamp = 0;
mux->last_gc_position = 0;
mux->offset = 0;
}
static void
gst_mxf_mux_reset (GstMXFMux * mux)
{
GList *l;
GST_OBJECT_LOCK (mux);
while ((l = GST_ELEMENT_CAST (mux)->sinkpads) != NULL) {
GstPad *pad = (GstPad *) l->data;
gst_object_ref (pad);
GST_OBJECT_UNLOCK (mux);
gst_element_release_request_pad (GST_ELEMENT_CAST (mux), pad);
gst_object_unref (pad);
GST_OBJECT_LOCK (mux);
}
GST_OBJECT_UNLOCK (mux);
mux->state = GST_MXF_MUX_STATE_HEADER;
mux->n_pads = 0;
if (mux->metadata) {
g_hash_table_destroy (mux->metadata);
mux->preface = NULL;
g_list_free (mux->metadata_list);
mux->metadata_list = NULL;
}
mux->metadata = mxf_metadata_hash_table_new ();
mxf_partition_pack_reset (&mux->partition);
mxf_primer_pack_reset (&mux->primer);
memset (&mux->min_edit_rate, 0, sizeof (MXFFraction));
mux->last_gc_timestamp = 0;
mux->last_gc_position = 0;
mux->offset = 0;
}
/* SMPTE 377M 6.1, Table 2 */
gboolean
mxf_partition_pack_parse (const MXFUL * key, MXFPartitionPack * pack,
const guint8 * data, guint size)
{
guint i;
#ifndef GST_DISABLE_GST_DEBUG
gchar str[48];
#endif
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (size >= 84, FALSE);
memset (pack, 0, sizeof (MXFPartitionPack));
GST_DEBUG ("Parsing partition pack:");
if (key->u[13] == 0x02)
pack->type = MXF_PARTITION_PACK_HEADER;
else if (key->u[13] == 0x03)
pack->type = MXF_PARTITION_PACK_BODY;
else if (key->u[13] == 0x04)
pack->type = MXF_PARTITION_PACK_FOOTER;
GST_DEBUG (" type = %s",
(pack->type == MXF_PARTITION_PACK_HEADER) ? "header" : (pack->type ==
MXF_PARTITION_PACK_BODY) ? "body" : "footer");
pack->closed = (key->u[14] == 0x02 || key->u[14] == 0x04);
pack->complete = (key->u[14] == 0x03 || key->u[14] == 0x04);
GST_DEBUG (" closed = %s, complete = %s", (pack->closed) ? "yes" : "no",
(pack->complete) ? "yes" : "no");
pack->major_version = GST_READ_UINT16_BE (data);
if (pack->major_version != 1)
goto error;
data += 2;
size -= 2;
pack->minor_version = GST_READ_UINT16_BE (data);
data += 2;
size -= 2;
GST_DEBUG (" MXF version = %u.%u", pack->major_version, pack->minor_version);
pack->kag_size = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" KAG size = %u", pack->kag_size);
pack->this_partition = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" this partition offset = %" G_GUINT64_FORMAT,
pack->this_partition);
pack->prev_partition = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" previous partition offset = %" G_GUINT64_FORMAT,
pack->prev_partition);
pack->footer_partition = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" footer partition offset = %" G_GUINT64_FORMAT,
pack->footer_partition);
pack->header_byte_count = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
GST_DEBUG (" header byte count = %" G_GUINT64_FORMAT,
pack->header_byte_count);
pack->index_byte_count = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
pack->index_sid = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" index sid = %u, size = %" G_GUINT64_FORMAT, pack->index_sid,
pack->index_byte_count);
pack->body_offset = GST_READ_UINT64_BE (data);
data += 8;
size -= 8;
pack->body_sid = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" body sid = %u, offset = %" G_GUINT64_FORMAT, pack->body_sid,
pack->body_offset);
memcpy (&pack->operational_pattern, data, 16);
data += 16;
size -= 16;
GST_DEBUG (" operational pattern = %s",
mxf_ul_to_string (&pack->operational_pattern, str));
pack->n_essence_containers = GST_READ_UINT32_BE (data);
data += 4;
size -= 4;
GST_DEBUG (" number of essence containers = %u", pack->n_essence_containers);
if (GST_READ_UINT32_BE (data) != 16)
goto error;
data += 4;
size -= 4;
if (size < 16 * pack->n_essence_containers)
goto error;
if (pack->n_essence_containers) {
pack->essence_containers = g_new (MXFUL, pack->n_essence_containers);
for (i = 0; i < pack->n_essence_containers; i++) {
memcpy (&pack->essence_containers[i], data + i * 16, 16);
GST_DEBUG (" essence container %u = %s", i,
mxf_ul_to_string (&pack->essence_containers[i], str));
}
}
pack->valid = TRUE;
return TRUE;
error:
GST_ERROR ("Invalid partition pack");
mxf_partition_pack_reset (pack);
return FALSE;
}