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diff --git a/gst-libs/ext/mplex/stillsstream.cc b/gst-libs/ext/mplex/stillsstream.cc
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+
+/*
+ * stillsstreams.c: Class for elemenary still video streams
+ * Most functionality is inherited from VideoStream
+ *
+ * Copyright (C) 2001 Andrew Stevens <andrew.stevens@philips.com>
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+
+#include <format_codes.h>
+
+#include "stillsstream.hh"
+#include "outputstream.hh"
+#include <cassert>
+
+void
+StillsStream::Init ()
+{
+ int stream_id = 0;
+ int buffer_size = 0;
+
+ SetBufSize (4 * 1024 * 1024);
+ InitAUbuffer ();
+ ScanFirstSeqHeader ();
+
+ mjpeg_debug ("SETTING video buffer to %d", muxinto.video_buffer_size);
+ switch (opt_mux_format) {
+ case MPEG_FORMAT_VCD_STILL:
+ if (horizontal_size > 352) {
+ stream_id = VIDEO_STR_0 + 2;
+ buffer_size = vbv_buffer_size * 2048;
+ mjpeg_info ("Stills Stream %02x: high-resolution VCD stills %d KB each",
+ stream_id, buffer_size);
+ if (buffer_size < 46 * 1024)
+ mjpeg_error_exit1
+ ("I Can't multiplex high-res stills smaller than normal res stills - sorry!");
+
+ } else {
+ stream_id = VIDEO_STR_0 + 1;
+ buffer_size = 46 * 1024;
+ mjpeg_info ("Stills Stream %02x: normal VCD stills", stream_id);
+ }
+ break;
+ case MPEG_FORMAT_SVCD_STILL:
+ if (horizontal_size > 480) {
+ stream_id = VIDEO_STR_0 + 1;
+ buffer_size = 230 * 1024;
+ mjpeg_info ("Stills Stream %02x: high-resolution SVCD stills.", stream_id);
+ } else {
+ stream_id = VIDEO_STR_0 + 1;
+ buffer_size = 230 * 1024;
+ mjpeg_info ("Stills Stream %02x: normal-resolution SVCD stills.", stream_id);
+ }
+ break;
+ }
+
+
+ MuxStream::Init (stream_id, 1, // Buffer scale
+ buffer_size, 0, // Zero stuffing
+ muxinto.buffers_in_video, muxinto.always_buffers_in_video);
+
+ /* Skip to the end of the 1st AU (*2nd* Picture start!)
+ */
+ AU_hdr = SEQUENCE_HEADER;
+ AU_pict_data = 0;
+ AU_start = 0LL;
+
+ OutputSeqhdrInfo ();
+
+}
+
+
+
+
+/*
+ * Compute DTS / PTS for a VCD/SVCD Stills sequence
+ * TODO: Very crude. Simply assumes each still stays for the specified
+ * frame interval and that enough run-in delay is present for the first
+ * frame to be loaded.
+ *
+ */
+
+void
+StillsStream::NextDTSPTS (clockticks & DTS, clockticks & PTS)
+{
+ clockticks interval = static_cast < clockticks >
+ (intervals->NextFrameInterval () * CLOCKS / frame_rate);
+ clockticks time_for_xfer;
+
+ muxinto.ByteposTimecode (BufferSize (), time_for_xfer);
+
+ DTS = current_PTS + time_for_xfer; // This frame decoded just after
+ // Predecessor completed.
+ PTS = current_PTS + time_for_xfer + interval;
+ current_PTS = PTS;
+ current_DTS = DTS;
+}
+
+/*
+ * VCD mixed stills segment items have the constraint that both stills
+ * streams must end together. To do this each stream has to know
+ * about its "sibling".
+ *
+ */
+
+void
+VCDStillsStream::SetSibling (VCDStillsStream * _sibling)
+{
+ assert (_sibling != 0);
+ sibling = _sibling;
+ if (sibling->stream_id == stream_id) {
+ mjpeg_error_exit1 ("VCD mixed stills stream cannot contain two streams of the same type!");
+ }
+
+}
+
+/*
+ * Check if we've reached the last sector of the last AU. Note: that
+ * we know no PTS/DTS time-stamps will be needed because no new AU
+ * will appear in the last sector. WARNING: We assume a still won't
+ * fit into a single secotr.
+ *
+ */
+
+bool
+VCDStillsStream::LastSectorLastAU ()
+{
+ return (Lookahead () == 0 &&
+ au_unsent <= muxinto.PacketPayload (*this, buffers_in_header, false, false)
+ );
+}
+
+
+/*
+ * The requirement that VCD mixed stills segment items constituent streams
+ * end together means we can't mux the last sector of the last AU of
+ * such streams until its sibling has already completed muxing or is
+ * also ready to mux the last sector of its last AU.
+ *
+ * NOTE: Will not work right if sector_align_iframe_AUs not set as this
+ * will allow multiple AU's in a sector.
+ *
+ */
+
+
+bool
+VCDStillsStream::MuxPossible ()
+{
+ if (bufmodel.Size () < au_unsent) {
+ mjpeg_error_exit1
+ ("Illegal VCD still: larger than maximum permitted by its buffering parameters!");
+ }
+ if (RunOutComplete () || bufmodel.Space () < au_unsent) {
+ return false;
+ }
+
+ if (LastSectorLastAU ()) {
+ if (sibling != 0) {
+ if (!stream_mismatch_warned && sibling->NextAUType () != NOFRAME) {
+ mjpeg_warn ("One VCD stills stream runs significantly longer than the other!");
+ mjpeg_warn ("Simultaneous stream ending recommended by standard not possible");
+ return true;
+ }
+ return sibling->MuxCompleted () || sibling->LastSectorLastAU ();
+ } else
+ return true;
+ } else
+ return true;
+}
+
+
+
+
+/*
+ * Local variables:
+ * c-file-style: "stroustrup"
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */