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ext/ogg/gstoggdemux.c: Yay for non-lineair granulepos in theora.

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Original commit message from CVS:
* ext/ogg/gstoggdemux.c: (gst_ogg_demux_src_query),
(gst_ogg_demux_src_event), (gst_ogg_pad_populate),
(gst_ogg_pad_push):
Yay for non-lineair granulepos in theora.
This commit is contained in:
Ronald S. Bultje 2004-10-18 19:12:32 +00:00
parent 62cd2b8fd9
commit 200b4b14e2
2 changed files with 67 additions and 25 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2004-10-18 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* ext/ogg/gstoggdemux.c: (gst_ogg_demux_src_query),
(gst_ogg_demux_src_event), (gst_ogg_pad_populate),
(gst_ogg_pad_push):
Yay for non-lineair granulepos in theora.
2004-10-18 Wim Taymans <wim@fluendo.com>
* ext/dv/gstdvdec.c: (gst_dvdec_init), (gst_dvdec_video_getcaps),

85
ext/ogg/gstoggdemux.c
View file

@ -408,14 +408,14 @@ gst_ogg_demux_src_query (GstPad * pad, GstQueryType type,
switch (type) {
case GST_QUERY_TOTAL:{
if (cur->length != 0 && cur->length != cur->start) {
granulepos = cur->length - cur->start;
granulepos = cur->length;
res = TRUE;
}
break;
}
case GST_QUERY_POSITION:
if (cur->length != 0 && cur->length != cur->start) {
granulepos = cur->known_offset - cur->start;
granulepos = cur->known_offset;
res = TRUE;
}
break;
@ -423,18 +423,28 @@ gst_ogg_demux_src_query (GstPad * pad, GstQueryType type,
break;
}
if (res) {
GstFormat fmt = GST_FORMAT_TIME;
guint64 base, time;
/* subtract base */
gst_pad_convert (GST_PAD_PEER (pad),
GST_FORMAT_DEFAULT, granulepos, &fmt, &time);
gst_pad_convert (GST_PAD_PEER (pad),
GST_FORMAT_DEFAULT, cur->start, &fmt, &base);
time -= base;
/* still ok, got a granulepos then */
switch (*format) {
case GST_FORMAT_DEFAULT:
case GST_FORMAT_TIME:
/* fine, result should be granulepos */
*value = granulepos;
*value = time;
res = TRUE;
break;
default:
/* something we have to ask our peer */
if (GST_PAD_PEER (pad)) {
res = gst_pad_convert (GST_PAD_PEER (pad),
GST_FORMAT_DEFAULT, granulepos, format, value);
GST_FORMAT_TIME, time, format, value);
} else {
res = FALSE;
}
@ -473,7 +483,7 @@ gst_ogg_demux_src_event (GstPad * pad, GstEvent * event)
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
{
gint64 offset, position;
gint64 offset, position, total;
GstFormat format, my_format;
gboolean res;
@ -522,28 +532,32 @@ gst_ogg_demux_src_event (GstPad * pad, GstEvent * event)
goto error;
}
position = offset;
if (format != GST_FORMAT_DEFAULT) {
GstFormat fmt = GST_FORMAT_DEFAULT;
my_format = GST_FORMAT_TIME;
if (format != GST_FORMAT_TIME) {
if (!gst_pad_convert (GST_PAD_PEER (pad), format,
offset, &fmt, &position))
offset, &my_format, &position))
goto error;
} else {
position = offset;
}
if (!gst_ogg_demux_src_query (pad, GST_QUERY_TOTAL, &my_format, &total))
goto error;
if (position < 0)
position = 0;
else if (position > cur->length - cur->start)
position = cur->length - cur->start;
else if (position > total)
position = total;
g_print ("Seek to %lld (%llu) of %lld\n", position, offset, total);
if (gst_file_pad_seek (ogg->sinkpad,
gst_file_pad_get_length (ogg->sinkpad) * position /
(cur->length - cur->start), GST_SEEK_METHOD_SET) != 0)
gst_file_pad_get_length (ogg->sinkpad) *
((gdouble) position) / ((gdouble) total),
GST_SEEK_METHOD_SET) != 0)
goto error;
ogg_sync_clear (&ogg->sync);
GST_OGG_SET_STATE (ogg, GST_OGG_STATE_PLAY);
FOR_PAD_IN_CURRENT_CHAIN (ogg, pad,
pad->flags |= GST_OGG_PAD_NEEDS_DISCONT;);
pad->flags |= GST_OGG_PAD_NEEDS_DISCONT;
);
GST_DEBUG_OBJECT (ogg,
"initiating seeking to format %d, offset %" G_GUINT64_FORMAT, format,
offset);
@ -616,7 +630,8 @@ gst_ogg_demux_handle_event (GstPad * pad, GstEvent * event)
gst_event_unref (event);
GST_FLAG_UNSET (ogg, GST_OGG_FLAG_WAIT_FOR_DISCONT);
FOR_PAD_IN_CURRENT_CHAIN (ogg, pad,
pad->flags |= GST_OGG_PAD_NEEDS_DISCONT;);
pad->flags |= GST_OGG_PAD_NEEDS_DISCONT;
);
break;
default:
gst_pad_event_default (pad, event);
@ -902,7 +917,8 @@ _find_chain_get_unknown_part (GstOggDemux * ogg, gint64 * start, gint64 * end)
*end = G_MAXINT64;
g_assert (ogg->current_chain >= 0);
FOR_PAD_IN_CURRENT_CHAIN (ogg, pad, *start = MAX (*start, pad->end_offset););
FOR_PAD_IN_CURRENT_CHAIN (ogg, pad, *start = MAX (*start, pad->end_offset);
);
if (ogg->setup_state == SETUP_FIND_LAST_CHAIN) {
*end = gst_file_pad_get_length (ogg->sinkpad);
@ -1031,7 +1047,8 @@ _find_streams_check (GstOggDemux * ogg)
} else {
endpos = G_MAXINT64;
FOR_PAD_IN_CHAIN (ogg, pad, ogg->chains->len - 1,
endpos = MIN (endpos, pad->start_offset););
endpos = MIN (endpos, pad->start_offset);
);
}
if (!ogg->seek_skipped || gst_ogg_demux_position (ogg) >= endpos) {
/* have we found the endposition for all streams yet? */
@ -1363,6 +1380,9 @@ gst_ogg_pad_push (GstOggDemux * ogg, GstOggPad * pad)
* the packet just fine. We should probably send a DISCONT though. */
break;
case 1:{
gint64 pos = -1, base = -1;
GstFormat fmt = GST_FORMAT_TIME;
/* only push data when playing, not during seek or similar */
if (ogg->state != GST_OGG_STATE_PLAY)
continue;
@ -1402,12 +1422,27 @@ gst_ogg_pad_push (GstOggDemux * ogg, GstOggPad * pad)
pad->flags |= GST_OGG_PAD_NEEDS_DISCONT;
pad->packetno = packet.packetno + 1;
}
if (pad->known_offset != -1)
gst_pad_convert (GST_PAD_PEER (pad->pad),
GST_FORMAT_DEFAULT, pad->known_offset, &fmt, &pos);
if (pad->start != -1)
gst_pad_convert (GST_PAD_PEER (pad->pad),
GST_FORMAT_DEFAULT, pad->start, &fmt, &base);
if (pos != -1 && base != -1) {
pos -= base;
fmt = GST_FORMAT_DEFAULT;
gst_pad_convert (GST_PAD_PEER (pad->pad),
GST_FORMAT_TIME, pos, &fmt, &pos);
} else
pos = -1;
/* send discont if needed */
if ((pad->flags & GST_OGG_PAD_NEEDS_DISCONT)
if (pos != -1 && (pad->flags & GST_OGG_PAD_NEEDS_DISCONT)
&& GST_PAD_IS_USABLE (pad->pad)) {
GstEvent *event = gst_event_new_discontinuous (FALSE,
GST_FORMAT_DEFAULT, pad->known_offset - pad->start,
GST_FORMAT_UNDEFINED);
GST_FORMAT_DEFAULT, pos, GST_FORMAT_UNDEFINED);
/* FIXME: this might be wrong because we can only use the last
* known offset */
@ -1422,8 +1457,8 @@ gst_ogg_pad_push (GstOggDemux * ogg, GstOggPad * pad)
memcpy (buf->data, packet.packet, packet.bytes);
if (pad->offset != -1)
GST_BUFFER_OFFSET (buf) = pad->offset;
if (packet.granulepos != -1)
GST_BUFFER_OFFSET_END (buf) = packet.granulepos - pad->start;
if (packet.granulepos != -1 && pos != -1)
GST_BUFFER_OFFSET_END (buf) = pos;
pad->offset = packet.granulepos;
if (GST_PAD_IS_USABLE (pad->pad))
gst_pad_push (pad->pad, GST_DATA (buf));