gint64
gst_avsynth_query_duration (GstPad *pad, AVS_VideoInfo *vi)
{
gint64 duration = -1, time_duration = -1;
gboolean ret;
GstFormat qfmt = GST_FORMAT_DEFAULT;
if (pad)
{
ret = gst_pad_query_peer_duration (pad, &qfmt, &duration);
if (!ret)
{
GST_INFO ("Failed to get duration in default format");
qfmt = GST_FORMAT_TIME;
ret = gst_pad_query_peer_duration (pad, &qfmt, &time_duration);
if (!ret)
{
GST_INFO ("Failed to get duration in time format");
duration = -1;
}
else
{
GstPad *peer = gst_pad_get_peer (pad);
if (peer)
{
qfmt = GST_FORMAT_DEFAULT;
if (!gst_pad_query_convert (peer, GST_FORMAT_TIME, time_duration, &qfmt, &duration))
{
GST_INFO ("Failed to convert duration from time format to default format");
gst_object_unref (peer);
peer = NULL;
}
else
gst_object_unref (peer);
if (peer == NULL)
{
duration = gst_util_uint64_scale (time_duration, vi->fps_numerator,
vi->fps_denominator * GST_SECOND);
/* Attempt to round to nearest integer: if the difference is more
* than 0.5 (less than -0.5), it means that gst_util_uint64_scale()
* just truncated an integer, while it had to be rounded
*/
duration = duration * GST_SECOND -
time_duration * vi->fps_numerator / vi->fps_denominator <=
-0.5 ? duration + 1: duration;
}
}
}
}
if (duration <= -1)
{
GST_WARNING ("Reporting duration as -1, may break some filters");
}
}
return duration;
}
/* This function is used to perform seeks on the element in
* pull mode.
*
* It also works when event is NULL, in which case it will just
* start from the last configured segment. This technique is
* used when activating the element and to perform the seek in
* READY.
*/
static gboolean
gst_aiff_parse_perform_seek (GstAiffParse * aiff, GstEvent * event)
{
gboolean res;
gdouble rate;
GstFormat format, bformat;
GstSeekFlags flags;
GstSeekType cur_type = GST_SEEK_TYPE_NONE, stop_type;
gint64 cur, stop, upstream_size;
gboolean flush;
gboolean update;
GstSegment seeksegment = { 0, };
gint64 last_stop;
if (event) {
GST_DEBUG_OBJECT (aiff, "doing seek with event");
gst_event_parse_seek (event, &rate, &format, &flags,
&cur_type, &cur, &stop_type, &stop);
/* no negative rates yet */
if (rate < 0.0)
goto negative_rate;
if (format != aiff->segment.format) {
GST_INFO_OBJECT (aiff, "converting seek-event from %s to %s",
gst_format_get_name (format),
gst_format_get_name (aiff->segment.format));
res = TRUE;
if (cur_type != GST_SEEK_TYPE_NONE)
res =
gst_pad_query_convert (aiff->srcpad, format, cur,
&aiff->segment.format, &cur);
if (res && stop_type != GST_SEEK_TYPE_NONE)
res =
gst_pad_query_convert (aiff->srcpad, format, stop,
&aiff->segment.format, &stop);
if (!res)
goto no_format;
format = aiff->segment.format;
}
} else {
GST_DEBUG_OBJECT (aiff, "doing seek without event");
flags = 0;
rate = 1.0;
cur_type = GST_SEEK_TYPE_SET;
stop_type = GST_SEEK_TYPE_SET;
}
/* get flush flag */
flush = flags & GST_SEEK_FLAG_FLUSH;
/* now we need to make sure the streaming thread is stopped. We do this by
* either sending a FLUSH_START event downstream which will cause the
* streaming thread to stop with a WRONG_STATE.
* For a non-flushing seek we simply pause the task, which will happen as soon
* as it completes one iteration (and thus might block when the sink is
* blocking in preroll). */
if (flush) {
GST_DEBUG_OBJECT (aiff, "sending flush start");
gst_pad_push_event (aiff->srcpad, gst_event_new_flush_start ());
} else {
gst_pad_pause_task (aiff->sinkpad);
}
/* we should now be able to grab the streaming thread because we stopped it
* with the above flush/pause code */
GST_PAD_STREAM_LOCK (aiff->sinkpad);
/* save current position */
last_stop = aiff->segment.last_stop;
GST_DEBUG_OBJECT (aiff, "stopped streaming at %" G_GINT64_FORMAT, last_stop);
/* copy segment, we need this because we still need the old
* segment when we close the current segment. */
memcpy (&seeksegment, &aiff->segment, sizeof (GstSegment));
/* configure the seek parameters in the seeksegment. We will then have the
* right values in the segment to perform the seek */
if (event) {
GST_DEBUG_OBJECT (aiff, "configuring seek");
gst_segment_set_seek (&seeksegment, rate, format, flags,
cur_type, cur, stop_type, stop, &update);
}
/* figure out the last position we need to play. If it's configured (stop !=
* -1), use that, else we play until the total duration of the file */
if ((stop = seeksegment.stop) == -1)
stop = seeksegment.duration;
GST_DEBUG_OBJECT (aiff, "cur_type =%d", cur_type);
if ((cur_type != GST_SEEK_TYPE_NONE)) {
/* bring offset to bytes, if the bps is 0, we have the segment in BYTES and
* we can just copy the last_stop. If not, we use the bps to convert TIME to
* bytes. */
if (aiff->bps > 0)
aiff->offset =
uint64_ceiling_scale (seeksegment.last_stop, (guint64) aiff->bps,
GST_SECOND);
else
aiff->offset = seeksegment.last_stop;
GST_LOG_OBJECT (aiff, "offset=%" G_GUINT64_FORMAT, aiff->offset);
aiff->offset -= (aiff->offset % aiff->bytes_per_sample);
GST_LOG_OBJECT (aiff, "offset=%" G_GUINT64_FORMAT, aiff->offset);
aiff->offset += aiff->datastart;
GST_LOG_OBJECT (aiff, "offset=%" G_GUINT64_FORMAT, aiff->offset);
} else {
GST_LOG_OBJECT (aiff, "continue from offset=%" G_GUINT64_FORMAT,
aiff->offset);
}
if (stop_type != GST_SEEK_TYPE_NONE) {
if (aiff->bps > 0)
aiff->end_offset =
uint64_ceiling_scale (stop, (guint64) aiff->bps, GST_SECOND);
else
aiff->end_offset = stop;
GST_LOG_OBJECT (aiff, "end_offset=%" G_GUINT64_FORMAT, aiff->end_offset);
aiff->end_offset -= (aiff->end_offset % aiff->bytes_per_sample);
GST_LOG_OBJECT (aiff, "end_offset=%" G_GUINT64_FORMAT, aiff->end_offset);
aiff->end_offset += aiff->datastart;
GST_LOG_OBJECT (aiff, "end_offset=%" G_GUINT64_FORMAT, aiff->end_offset);
} else {
GST_LOG_OBJECT (aiff, "continue to end_offset=%" G_GUINT64_FORMAT,
aiff->end_offset);
}
/* make sure filesize is not exceeded due to rounding errors or so,
* same precaution as in _stream_headers */
bformat = GST_FORMAT_BYTES;
if (gst_pad_query_peer_duration (aiff->sinkpad, &bformat, &upstream_size))
aiff->end_offset = MIN (aiff->end_offset, upstream_size);
/* this is the range of bytes we will use for playback */
aiff->offset = MIN (aiff->offset, aiff->end_offset);
aiff->dataleft = aiff->end_offset - aiff->offset;
GST_DEBUG_OBJECT (aiff,
"seek: rate %lf, offset %" G_GUINT64_FORMAT ", end %" G_GUINT64_FORMAT
", segment %" GST_TIME_FORMAT " -- %" GST_TIME_FORMAT, rate, aiff->offset,
aiff->end_offset, GST_TIME_ARGS (seeksegment.start),
GST_TIME_ARGS (stop));
/* prepare for streaming again */
if (flush) {
/* if we sent a FLUSH_START, we now send a FLUSH_STOP */
GST_DEBUG_OBJECT (aiff, "sending flush stop");
gst_pad_push_event (aiff->srcpad, gst_event_new_flush_stop ());
} else if (aiff->segment_running) {
/* we are running the current segment and doing a non-flushing seek,
* close the segment first based on the previous last_stop. */
GST_DEBUG_OBJECT (aiff, "closing running segment %" G_GINT64_FORMAT
" to %" G_GINT64_FORMAT, aiff->segment.accum, aiff->segment.last_stop);
/* queue the segment for sending in the stream thread */
if (aiff->close_segment)
gst_event_unref (aiff->close_segment);
aiff->close_segment = gst_event_new_new_segment (TRUE,
aiff->segment.rate, aiff->segment.format,
aiff->segment.accum, aiff->segment.last_stop, aiff->segment.accum);
/* keep track of our last_stop */
seeksegment.accum = aiff->segment.last_stop;
}
/* now we did the seek and can activate the new segment values */
memcpy (&aiff->segment, &seeksegment, sizeof (GstSegment));
/* if we're doing a segment seek, post a SEGMENT_START message */
if (aiff->segment.flags & GST_SEEK_FLAG_SEGMENT) {
gst_element_post_message (GST_ELEMENT_CAST (aiff),
gst_message_new_segment_start (GST_OBJECT_CAST (aiff),
aiff->segment.format, aiff->segment.last_stop));
}
/* now create the newsegment */
GST_DEBUG_OBJECT (aiff, "Creating newsegment from %" G_GINT64_FORMAT
" to %" G_GINT64_FORMAT, aiff->segment.last_stop, stop);
/* store the newsegment event so it can be sent from the streaming thread. */
if (aiff->start_segment)
gst_event_unref (aiff->start_segment);
aiff->start_segment =
gst_event_new_new_segment (FALSE, aiff->segment.rate,
aiff->segment.format, aiff->segment.last_stop, stop,
aiff->segment.last_stop);
/* mark discont if we are going to stream from another position. */
if (last_stop != aiff->segment.last_stop) {
GST_DEBUG_OBJECT (aiff, "mark DISCONT, we did a seek to another position");
aiff->discont = TRUE;
}
/* and start the streaming task again */
aiff->segment_running = TRUE;
if (!aiff->streaming) {
gst_pad_start_task (aiff->sinkpad, (GstTaskFunction) gst_aiff_parse_loop,
aiff->sinkpad);
}
GST_PAD_STREAM_UNLOCK (aiff->sinkpad);
return TRUE;
/* ERRORS */
negative_rate:
{
GST_DEBUG_OBJECT (aiff, "negative playback rates are not supported yet.");
return FALSE;
}
no_format:
{
GST_DEBUG_OBJECT (aiff, "unsupported format given, seek aborted.");
return FALSE;
}
}
static gboolean
xing_mp3_encoder_src_query(GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
XingMp3Encoder *encoder;
GstPad *peerpad;
encoder = XING_MP3_ENCODER(gst_pad_get_parent(pad));
peerpad = gst_pad_get_peer(GST_PAD(encoder->sinkpad));
switch(GST_QUERY_TYPE(query)) {
case GST_QUERY_DURATION: {
GstFormat fmt, req_fmt;
gint64 dur, val;
gst_query_parse_duration(query, &req_fmt, NULL);
if((res = gst_pad_query_duration(peerpad, &req_fmt, &val))) {
gst_query_set_duration(query, req_fmt, val);
break;
}
fmt = GST_FORMAT_TIME;
if(!(res = gst_pad_query_duration (peerpad, &fmt, &dur))) {
break;
}
if((res = gst_pad_query_convert(peerpad, fmt, dur, &req_fmt, &val))) {
gst_query_set_duration(query, req_fmt, val);
}
break;
}
case GST_QUERY_POSITION: {
GstFormat fmt, req_fmt;
gint64 pos, val;
gst_query_parse_position(query, &req_fmt, NULL);
if((res = gst_pad_query_position(peerpad, &req_fmt, &val))) {
gst_query_set_position (query, req_fmt, val);
break;
}
fmt = GST_FORMAT_TIME;
if(!(res = gst_pad_query_position(peerpad, &fmt, &pos))) {
break;
}
if((res = gst_pad_query_convert(peerpad, fmt, pos, &req_fmt, &val))) {
gst_query_set_position(query, req_fmt, val);
}
break;
}
case GST_QUERY_CONVERT: {
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert(query, &src_fmt, &src_val, &dest_fmt, &dest_val);
if(!(res = xing_mp3_encoder_convert_src(pad, src_fmt, src_val, &dest_fmt, &dest_val))) {
gst_object_unref(peerpad);
gst_object_unref(encoder);
}
gst_query_set_convert(query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default(pad, query);
break;
}
return res;
}
static gboolean
gst_vorbis_enc_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstVorbisEnc *vorbisenc;
GstPad *peerpad;
vorbisenc = GST_VORBISENC (gst_pad_get_parent (pad));
peerpad = gst_pad_get_peer (GST_PAD (vorbisenc->sinkpad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat fmt, req_fmt;
gint64 pos, val;
gst_query_parse_position (query, &req_fmt, NULL);
if ((res = gst_pad_query_position (peerpad, &req_fmt, &val))) {
gst_query_set_position (query, req_fmt, val);
break;
}
fmt = GST_FORMAT_TIME;
if (!(res = gst_pad_query_position (peerpad, &fmt, &pos)))
break;
if ((res = gst_pad_query_convert (peerpad, fmt, pos, &req_fmt, &val))) {
gst_query_set_position (query, req_fmt, val);
}
break;
}
case GST_QUERY_DURATION:
{
GstFormat fmt, req_fmt;
gint64 dur, val;
gst_query_parse_duration (query, &req_fmt, NULL);
if ((res = gst_pad_query_duration (peerpad, &req_fmt, &val))) {
gst_query_set_duration (query, req_fmt, val);
break;
}
fmt = GST_FORMAT_TIME;
if (!(res = gst_pad_query_duration (peerpad, &fmt, &dur)))
break;
if ((res = gst_pad_query_convert (peerpad, fmt, dur, &req_fmt, &val))) {
gst_query_set_duration (query, req_fmt, val);
}
break;
}
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
if (!(res =
gst_vorbis_enc_convert_src (pad, src_fmt, src_val, &dest_fmt,
&dest_val)))
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
error:
gst_object_unref (peerpad);
gst_object_unref (vorbisenc);
return res;
}
