static void
type_found (GstElement * typefind, guint probability,
GstCaps * caps, GstSplitMuxPartReader * reader)
{
GstElement *demux;
GST_INFO_OBJECT (reader, "Got type %" GST_PTR_FORMAT, caps);
/* typefind found a type. Look for the demuxer to handle it */
demux = reader->demux = find_demuxer (caps);
if (reader->demux == NULL) {
GST_ERROR_OBJECT (reader, "Failed to create demuxer element");
return;
}
/* Connect to demux signals */
g_signal_connect (demux,
"pad-added", G_CALLBACK (new_decoded_pad_added_cb), reader);
g_signal_connect (demux, "no-more-pads", G_CALLBACK (no_more_pads), reader);
gst_element_set_locked_state (demux, TRUE);
gst_bin_add (GST_BIN_CAST (reader), demux);
gst_element_link_pads (reader->typefind, "src", demux, NULL);
gst_element_set_state (reader->demux, GST_STATE_TARGET (reader));
gst_element_set_locked_state (demux, FALSE);
}
void
ogm_reader_c::handle_new_stream_and_packets(ogg_page *og) {
ogm_demuxer_cptr dmx;
handle_new_stream(og);
dmx = find_demuxer(ogg_page_serialno(og));
if (dmx)
process_header_packets(dmx);
}
void
ogm_reader_c::process_header_page(ogg_page *og) {
ogm_demuxer_cptr dmx;
dmx = find_demuxer(ogg_page_serialno(og));
if (!dmx ||dmx->headers_read)
return;
ogg_stream_pagein(&dmx->os, og);
process_header_packets(dmx);
}
/*
Process the contents of a page. First find the demuxer associated with
the page's serial number. If there is no such demuxer then either the
OGG file is damaged (very rare) or the page simply belongs to a stream
that the user didn't want extracted.
If the demuxer is found then hand over all packets in this page to the
associated packetizer.
*/
void
ogm_reader_c::process_page(ogg_page *og) {
ogm_demuxer_cptr dmx;
int64_t granulepos;
dmx = find_demuxer(ogg_page_serialno(og));
if (!dmx || !dmx->in_use)
return;
granulepos = ogg_page_granulepos(og);
if ((-1 != granulepos) && (granulepos < dmx->last_granulepos)) {
mxwarn_tid(m_ti.m_fname, dmx->track_id,
Y("The timecodes for this stream have been reset in the middle of the file. This is not supported. The current packet will be discarded.\n"));
return;
}
ogg_stream_pagein(&dmx->os, og);
dmx->process_page(granulepos);
dmx->last_granulepos = granulepos;
}