static gboolean
gst_deinterleave_src_query (GstPad * pad, GstQuery * query)
{
GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
gboolean res;
res = gst_pad_query_default (pad, query);
if (res && GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
GstFormat format;
gint64 dur;
gst_query_parse_duration (query, &format, &dur);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && dur != -1)
gst_query_set_duration (query, format, dur / self->channels);
} else if (res && GST_QUERY_TYPE (query) == GST_QUERY_POSITION) {
GstFormat format;
gint64 pos;
gst_query_parse_position (query, &format, &pos);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && pos != -1)
gst_query_set_position (query, format, pos / self->channels);
}
gst_object_unref (self);
return res;
}
static gboolean
gst_vdp_mpeg_dec_src_query (GstPad * pad, GstQuery * query)
{
GstVdpMpegDec *mpeg_dec = GST_VDP_MPEG_DEC (gst_pad_get_parent (pad));
gboolean res;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
if ((res = gst_pad_query_default (pad, query)))
goto done;
gst_query_parse_position (query, &format, NULL);
if (format == GST_FORMAT_TIME &&
GST_CLOCK_TIME_IS_VALID (mpeg_dec->next_timestamp)) {
gst_query_set_position (query, GST_FORMAT_TIME,
mpeg_dec->next_timestamp);
res = TRUE;
}
break;
}
case GST_QUERY_DURATION:
{
GstFormat format;
if ((res = gst_pad_query_default (pad, query)))
goto done;
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_TIME) {
gint64 bytes;
format = GST_FORMAT_BYTES;
if (gst_pad_query_duration (pad, &format, &bytes)
&& format == GST_FORMAT_BYTES) {
gint64 duration;
if (gst_vdp_mpeg_dec_convert (mpeg_dec, GST_FORMAT_BYTES,
bytes, GST_FORMAT_TIME, &duration)) {
GST_DEBUG ("duration: %" GST_TIME_FORMAT, GST_TIME_ARGS (duration));
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
res = TRUE;
}
}
}
break;
}
default:
res = gst_pad_query_default (pad, query);
}
done:
gst_object_unref (mpeg_dec);
return res;
}
static gboolean
gst_avdtp_src_query (GstBaseSrc * bsrc, GstQuery * query)
{
GstAvdtpSrc *avdtpsrc = GST_AVDTP_SRC (bsrc);
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:{
GstFormat format;
if (avdtpsrc->duration != GST_CLOCK_TIME_NONE) {
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_TIME) {
gst_query_set_duration (query, format, (gint64) avdtpsrc->duration);
ret = TRUE;
}
}
break;
}
default:
ret = GST_BASE_SRC_CLASS (parent_class)->query (bsrc, query);
}
return ret;
}
static gboolean
gst_midi_parse_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
gboolean res = TRUE;
GstMidiParse *midiparse = GST_MIDI_PARSE (parent);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
midiparse->segment.duration);
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
midiparse->segment.position);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 1, GST_FORMAT_TIME);
break;
case GST_QUERY_SEGMENT:
gst_query_set_segment (query, midiparse->segment.rate,
midiparse->segment.format, midiparse->segment.start,
midiparse->segment.stop);
break;
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, midiparse->segment.format,
FALSE, 0, midiparse->segment.duration);
break;
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}
static gboolean
gst_flxdec_src_query_handler (GstPad * pad, GstObject * parent,
GstQuery * query)
{
GstFlxDec *flxdec = (GstFlxDec *) parent;
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat format;
gst_query_parse_duration (query, &format, NULL);
if (format != GST_FORMAT_TIME)
goto done;
gst_query_set_duration (query, format, flxdec->duration);
ret = TRUE;
}
default:
break;
}
done:
if (!ret)
ret = gst_pad_query_default (pad, parent, query);
return ret;
}
static gboolean
gst_hls_demux_src_query (GstPad * pad, GstQuery * query)
{
GstHLSDemux *hlsdemux;
gboolean ret = FALSE;
if (query == NULL)
return FALSE;
hlsdemux = GST_HLS_DEMUX (gst_pad_get_element_private (pad));
switch (query->type) {
case GST_QUERY_DURATION:{
GstClockTime duration;
GstFormat fmt;
gst_query_parse_duration (query, &fmt, NULL);
if (fmt == GST_FORMAT_TIME) {
duration = gst_m3u8_client_get_duration (hlsdemux->client);
if (GST_CLOCK_TIME_IS_VALID (duration) && duration > 0) {
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
ret = TRUE;
}
}
break;
}
case GST_QUERY_URI:
if (hlsdemux->client) {
/* FIXME: Do we answer with the variant playlist, with the current
* playlist or the the uri of the least downlowaded fragment? */
gst_query_set_uri (query, hlsdemux->client->current->uri);
ret = TRUE;
}
break;
case GST_QUERY_SEEKING:{
GstFormat fmt;
gint stop = -1;
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
if (fmt == GST_FORMAT_TIME) {
GstClockTime duration;
duration = gst_m3u8_client_get_duration (hlsdemux->client);
if (GST_CLOCK_TIME_IS_VALID (duration) && duration > 0)
stop = duration;
}
gst_query_set_seeking (query, fmt, FALSE, 0, stop);
ret = TRUE;
break;
}
default:
/* Don't fordward queries upstream because of the special nature of this
* "demuxer", which relies on the upstream element only to be fed with the
* first playlist */
break;
}
return ret;
}
/* FIXME operating in TIME rather than BYTES could remove this altogether
* and be more convenient elsewhere */
static gboolean
gst_mms_query (GstBaseSrc * src, GstQuery * query)
{
GstMMS *mmssrc = GST_MMS (src);
gboolean res = TRUE;
GstFormat format;
gint64 value;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
gst_query_parse_position (query, &format, &value);
if (format != GST_FORMAT_BYTES) {
res = FALSE;
break;
}
value = (gint64) mmsx_get_current_pos (mmssrc->connection);
gst_query_set_position (query, format, value);
break;
case GST_QUERY_DURATION:
if (!mmsx_get_seekable (mmssrc->connection)) {
res = FALSE;
break;
}
gst_query_parse_duration (query, &format, &value);
switch (format) {
case GST_FORMAT_BYTES:
value = (gint64) mmsx_get_length (mmssrc->connection);
gst_query_set_duration (query, format, value);
break;
case GST_FORMAT_TIME:
value = mmsx_get_time_length (mmssrc->connection) * GST_SECOND;
gst_query_set_duration (query, format, value);
break;
default:
res = FALSE;
}
break;
default:
/* chain to parent */
res =
GST_BASE_SRC_CLASS (parent_class)->query (GST_BASE_SRC (src), query);
break;
}
return res;
}
static gboolean
gst_y4m_dec_src_query (GstPad * pad, GstQuery * query)
{
GstY4mDec *y4mdec = GST_Y4M_DEC (gst_pad_get_parent (pad));
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat format;
GstPad *peer;
GST_DEBUG ("duration query");
gst_query_parse_duration (query, &format, NULL);
if (format != GST_FORMAT_TIME) {
res = FALSE;
GST_DEBUG_OBJECT (y4mdec, "not handling duration query in format %d",
format);
break;
}
peer = gst_pad_get_peer (y4mdec->sinkpad);
if (peer) {
GstQuery *peer_query = gst_query_new_duration (GST_FORMAT_BYTES);
res = gst_pad_query (peer, peer_query);
if (res) {
gint64 duration;
int n_frames;
gst_query_parse_duration (peer_query, &format, &duration);
n_frames = gst_y4m_dec_bytes_to_frames (y4mdec, duration);
GST_DEBUG ("duration in frames %d", n_frames);
duration = gst_y4m_dec_frames_to_timestamp (y4mdec, n_frames);
GST_DEBUG ("duration in time %" GST_TIME_FORMAT,
GST_TIME_ARGS (duration));
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
res = TRUE;
}
gst_query_unref (peer_query);
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (y4mdec);
return res;
}
static gboolean
gst_rtmp_src_query (GstBaseSrc * basesrc, GstQuery * query)
{
gboolean ret = FALSE;
GstRTMPSrc *src = GST_RTMP_SRC (basesrc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_URI:
gst_query_set_uri (query, src->uri);
ret = TRUE;
break;
case GST_QUERY_POSITION:{
GstFormat format;
gst_query_parse_position (query, &format, NULL);
if (format == GST_FORMAT_TIME) {
gst_query_set_duration (query, format, src->last_timestamp);
ret = TRUE;
}
break;
}
case GST_QUERY_DURATION:{
GstFormat format;
gdouble duration;
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_TIME && src->rtmp) {
duration = RTMP_GetDuration (src->rtmp);
if (duration != 0.0) {
gst_query_set_duration (query, format, duration * GST_SECOND);
ret = TRUE;
}
}
break;
}
default:
ret = FALSE;
break;
}
if (!ret)
ret = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
return ret;
}
static gboolean
gst_wildmidi_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstWildmidi *wildmidi = GST_WILDMIDI (gst_pad_get_parent (pad));
GstFormat src_format, dst_format;
gint64 src_value, dst_value;
if (!wildmidi->song) {
gst_object_unref (wildmidi);
return FALSE;
}
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_len, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_segment->last_stop, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_CONVERT:
gst_query_parse_convert (query, &src_format, &src_value,
&dst_format, NULL);
res =
gst_wildmidi_src_convert (wildmidi, src_format, src_value,
&dst_format, &dst_value);
if (res)
gst_query_set_convert (query, src_format, src_value, dst_format,
dst_value);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 3,
GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
break;
case GST_QUERY_SEGMENT:
gst_query_set_segment (query, wildmidi->o_segment->rate,
wildmidi->o_segment->format, wildmidi->o_segment->start,
wildmidi->o_segment->stop);
break;
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, wildmidi->o_segment->format,
TRUE, 0, wildmidi->o_len);
break;
default:
res = FALSE;
break;
}
gst_object_unref (wildmidi);
return res;
}
static gboolean
speex_dec_src_query (GstPad * pad, GstQuery * query)
{
GstSpeexDec *dec;
gboolean res = FALSE;
dec = GST_SPEEX_DEC (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:{
GstSegment segment;
GstFormat format;
gint64 cur;
gst_query_parse_position (query, &format, NULL);
GST_PAD_STREAM_LOCK (dec->sinkpad);
segment = dec->segment;
GST_PAD_STREAM_UNLOCK (dec->sinkpad);
if (segment.format != GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (dec, "segment not initialised yet");
break;
}
if ((res = speex_dec_convert (dec->srcpad, GST_FORMAT_TIME,
segment.last_stop, &format, &cur))) {
gst_query_set_position (query, format, cur);
}
break;
}
case GST_QUERY_DURATION:{
GstFormat format = GST_FORMAT_TIME;
gint64 dur;
/* get duration from demuxer */
if (!gst_pad_query_peer_duration (dec->sinkpad, &format, &dur))
break;
gst_query_parse_duration (query, &format, NULL);
/* and convert it into the requested format */
if ((res = speex_dec_convert (dec->srcpad, GST_FORMAT_TIME,
dur, &format, &dur))) {
gst_query_set_duration (query, format, dur);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (dec);
return res;
}
static gboolean
gst_timidity_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstTimidity *timidity = GST_TIMIDITY (gst_pad_get_parent (pad));
GstFormat src_format, dst_format;
gint64 src_value, dst_value;
if (!timidity->song) {
gst_object_unref (timidity);
return FALSE;
}
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
GST_MSECOND * (gint64) mid_song_get_total_time (timidity->song));
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
timidity->o_segment->last_stop * timidity->time_per_frame);
break;
case GST_QUERY_CONVERT:
gst_query_parse_convert (query, &src_format, &src_value,
&dst_format, NULL);
res =
gst_timidity_src_convert (timidity, src_format, src_value,
&dst_format, &dst_value);
if (res)
gst_query_set_convert (query, src_format, src_value, dst_format,
dst_value);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 3,
GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
break;
case GST_QUERY_SEGMENT:
gst_query_set_segment (query, timidity->o_segment->rate,
timidity->o_segment->format, timidity->o_segment->start,
timidity->o_segment->stop);
break;
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, timidity->o_segment->format,
TRUE, 0, timidity->o_len);
break;
default:
res = FALSE;
break;
}
gst_object_unref (timidity);
return res;
}
static gboolean
gst_real_audio_demux_src_query (GstPad * pad, GstQuery * query)
{
GstRealAudioDemux *demux;
gboolean ret = FALSE;
demux = GST_REAL_AUDIO_DEMUX (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:{
GstFormat format;
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_TIME && demux->duration > 0) {
gst_query_set_duration (query, GST_FORMAT_TIME, demux->duration);
ret = TRUE;
} else if (format == GST_FORMAT_BYTES && demux->upstream_size > 0) {
gst_query_set_duration (query, GST_FORMAT_BYTES,
demux->upstream_size - demux->data_offset);
ret = TRUE;
}
break;
}
case GST_QUERY_SEEKING:{
GstFormat format;
gboolean seekable;
gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
seekable = (format == GST_FORMAT_TIME && demux->seekable);
gst_query_set_seeking (query, format, seekable, 0,
(format == GST_FORMAT_TIME) ? demux->duration : -1);
ret = TRUE;
break;
}
default:
ret = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (demux);
return ret;
}
static gboolean
gst_rtmp_src_query (GstBaseSrc * basesrc, GstQuery * query)
{
gboolean ret = FALSE;
GstRTMPSrc *src = GST_RTMP_SRC (basesrc);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_URI:
gst_query_set_uri (query, src->uri);
ret = TRUE;
break;
case GST_QUERY_POSITION:{
GstFormat format;
gst_query_parse_position (query, &format, NULL);
if (format == GST_FORMAT_TIME) {
gst_query_set_position (query, format, src->last_timestamp);
ret = TRUE;
}
break;
}
case GST_QUERY_DURATION:{
GstFormat format;
gdouble duration;
gst_query_parse_duration (query, &format, NULL);
if (format == GST_FORMAT_TIME && src->rtmp) {
duration = RTMP_GetDuration (src->rtmp);
if (duration != 0.0) {
gst_query_set_duration (query, format, duration * GST_SECOND);
ret = TRUE;
}
}
break;
}
case GST_QUERY_SCHEDULING:{
gst_query_set_scheduling (query,
GST_SCHEDULING_FLAG_SEQUENTIAL |
GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED, 1, -1, 0);
gst_query_add_scheduling_mode (query, GST_PAD_MODE_PUSH);
ret = TRUE;
break;
}
default:
ret = FALSE;
break;
}
if (!ret)
ret = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
return ret;
}
static gboolean
gst_vcd_parse_src_query (GstPad * pad, GstQuery * query)
{
GstVcdParse *vcd = GST_VCD_PARSE (gst_pad_get_parent (pad));
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:{
GstFormat format;
gint64 dur;
/* first try upstream */
if (!gst_pad_query_default (pad, query))
break;
/* we can only handle BYTES */
gst_query_parse_duration (query, &format, &dur);
if (format != GST_FORMAT_BYTES)
break;
gst_query_set_duration (query, GST_FORMAT_BYTES,
gst_vcd_parse_get_out_offset (dur));
res = TRUE;
break;
}
case GST_QUERY_POSITION:{
GstFormat format;
gint64 pos;
/* first try upstream */
if (!gst_pad_query_default (pad, query))
break;
/* we can only handle BYTES */
gst_query_parse_position (query, &format, &pos);
if (format != GST_FORMAT_BYTES)
break;
gst_query_set_position (query, GST_FORMAT_BYTES,
gst_vcd_parse_get_out_offset (pos));
res = TRUE;
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (vcd);
return res;
}
static gboolean
gst_tta_parse_query (GstPad * pad, GstQuery * query)
{
GstTtaParse *ttaparse = GST_TTA_PARSE (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 cur;
gst_query_parse_position (query, &format, NULL);
switch (format) {
case GST_FORMAT_TIME:
cur = ttaparse->index[ttaparse->current_frame].time;
break;
default:
format = GST_FORMAT_BYTES;
cur = ttaparse->index[ttaparse->current_frame].pos;
break;
}
gst_query_set_position (query, format, cur);
break;
}
case GST_QUERY_DURATION:
{
GstFormat format;
gint64 end;
gst_query_parse_duration (query, &format, NULL);
switch (format) {
case GST_FORMAT_TIME:
end = ((gdouble) ttaparse->data_length /
(gdouble) ttaparse->samplerate) * GST_SECOND;
break;
default:
format = GST_FORMAT_BYTES;
end = ttaparse->index[ttaparse->num_frames].pos +
ttaparse->index[ttaparse->num_frames].size;
break;
}
gst_query_set_duration (query, format, end);
break;
}
default:
return FALSE;
break;
}
return TRUE;
}
static gboolean
_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstFormat fmt;
if (GST_QUERY_TYPE (query) != GST_QUERY_DURATION)
return FALSE;
gst_query_parse_duration (query, &fmt, NULL);
if (fmt != GST_FORMAT_BYTES)
return FALSE;
gst_query_set_duration (query, fmt, sizeof (mxf_file));
return TRUE;
}
/***********************************************************************************
* Query
***********************************************************************************/
static gboolean mpegts_demuxer_sink_query (GstPad *pad, GstObject *parent, GstQuery *query)
{
gboolean result = TRUE;
MpegTSDemuxer *demuxer = MPEGTS_DEMUXER(parent);
switch (GST_QUERY_TYPE(query))
{
case GST_QUERY_DURATION:
{
GstFormat format;
gst_query_parse_duration(query, &format, NULL);
if (format == GST_FORMAT_TIME)
result = gst_pad_peer_query(pad, query);
else if (format == GST_FORMAT_BYTES)
{
g_mutex_lock(&demuxer->lock);
int bit_rate = (demuxer->context != NULL) ? demuxer->context->bit_rate : 0;
g_mutex_unlock(&demuxer->lock);
if (bit_rate > 0)
{
gint64 duration = GST_CLOCK_TIME_NONE;
if (gst_pad_peer_query_duration(pad, GST_FORMAT_TIME, &duration))
{
// Approximate duration in bytes for a certain time duration and bit rate.
if (duration != GST_CLOCK_TIME_NONE)
duration = (double)(duration * bit_rate) / GST_SECOND / 8;
gst_query_set_duration(query, format, duration);
}
else
result = FALSE;
}
else
result = gst_pad_peer_query(pad, query);
}
break;
}
default:
result = gst_pad_peer_query(pad, query);
break;
}
return result;
}
static gboolean
gst_deinterleave_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstDeinterleave *self = GST_DEINTERLEAVE (parent);
gboolean res;
res = gst_pad_query_default (pad, parent, query);
if (res && GST_QUERY_TYPE (query) == GST_QUERY_DURATION) {
GstFormat format;
gint64 dur;
gst_query_parse_duration (query, &format, &dur);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && dur != -1)
gst_query_set_duration (query, format,
dur / GST_AUDIO_INFO_CHANNELS (&self->audio_info));
} else if (res && GST_QUERY_TYPE (query) == GST_QUERY_POSITION) {
GstFormat format;
gint64 pos;
gst_query_parse_position (query, &format, &pos);
/* Need to divide by the number of channels in byte format
* to get the correct value. All other formats should be fine
*/
if (format == GST_FORMAT_BYTES && pos != -1)
gst_query_set_position (query, format,
pos / GST_AUDIO_INFO_CHANNELS (&self->audio_info));
} else if (res && GST_QUERY_TYPE (query) == GST_QUERY_CAPS) {
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_deinterleave_sink_getcaps (pad, parent, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
}
return res;
}
static gboolean
gst_mms_src_query (GstPad * pad, GstQuery * query)
{
GstMMS *mmssrc = GST_MMS (gst_pad_get_parent (pad));
gboolean res = TRUE;
GstFormat format;
gint64 value;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
gst_query_parse_position (query, &format, &value);
if (format != GST_FORMAT_BYTES) {
res = FALSE;
break;
}
if (mmssrc->connection) {
value = (gint64) mms_get_current_pos (mmssrc->connection);
} else {
value = (gint64) mmsh_get_current_pos (mmssrc->connection_h);
}
gst_query_set_position (query, format, value);
break;
case GST_QUERY_DURATION:
gst_query_parse_duration (query, &format, &value);
if (format != GST_FORMAT_BYTES) {
res = FALSE;
break;
}
if (mmssrc->connection) {
value = (gint64) mms_get_length (mmssrc->connection);
} else {
value = (gint64) mmsh_get_length (mmssrc->connection_h);
}
gst_query_set_duration (query, format, value);
break;
default:
res = FALSE;
break;
}
gst_object_unref (mmssrc);
return res;
}
/* FIXME:
*
* When we add a new stream (or remove a stream) the duration might
* also become invalid again and we need to post a new DURATION
* message to notify this fact to the parent.
* For now we take the max of all the upstream elements so the simple
* cases work at least somewhat.
*/
static gboolean
gst_live_adder_query_duration (GstLiveAdder * adder, GstQuery * query)
{
GstFormat format;
gint64 max;
gboolean res;
/* parse format */
gst_query_parse_duration (query, &format, NULL);
res = gst_live_adder_query_pos_dur (adder, format, FALSE, &max);
if (res) {
/* and store the max */
gst_query_set_duration (query, format, max);
}
return res;
}
static gboolean
gst_spc_dec_src_query (GstPad * pad, GstQuery * query)
{
GstSpcDec *spc = GST_SPC_DEC (gst_pad_get_parent (pad));
gboolean result = TRUE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat format;
gst_query_parse_duration (query, &format, NULL);
if (!spc->initialized || format != GST_FORMAT_TIME) {
result = FALSE;
break;
}
gst_query_set_duration (query, GST_FORMAT_TIME,
gst_spc_duration (spc) + gst_spc_fadeout (spc));
break;
}
case GST_QUERY_POSITION:
{
GstFormat format;
gst_query_parse_position (query, &format, NULL);
if (!spc->initialized || format != GST_FORMAT_TIME) {
result = FALSE;
break;
}
gst_query_set_position (query, GST_FORMAT_TIME,
(gint64) gst_util_uint64_scale (spc->byte_pos, GST_SECOND,
32000 * 2 * 2));
break;
}
default:
result = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (spc);
return result;
}
static gboolean
gst_gme_dec_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstGmeDec *gme = GST_GME_DEC (parent);
gboolean result = TRUE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat format;
gst_query_parse_duration (query, &format, NULL);
if (!gme->initialized || format != GST_FORMAT_TIME
|| gme->total_duration == GST_CLOCK_TIME_NONE) {
result = FALSE;
break;
}
gst_query_set_duration (query, GST_FORMAT_TIME, gme->total_duration);
break;
}
case GST_QUERY_POSITION:
{
GstFormat format;
gst_query_parse_position (query, &format, NULL);
if (!gme->initialized || format != GST_FORMAT_TIME) {
result = FALSE;
break;
}
gst_query_set_position (query, GST_FORMAT_TIME,
(gint64) gme_tell (gme->player) * GST_MSECOND);
break;
}
default:
result = gst_pad_query_default (pad, parent, query);
break;
}
return result;
}
static gboolean
gst_cdxa_parse_src_query (GstPad * srcpad, GstQuery * query)
{
GstCDXAParse *cdxa = GST_CDXA_PARSE (gst_pad_get_parent (srcpad));
gboolean res = FALSE;
GST_DEBUG_OBJECT (cdxa, "Handling %s query",
gst_query_type_get_name (GST_QUERY_TYPE (query)));
res = gst_pad_query_default (srcpad, query);
if (res) {
GstFormat format;
gint64 val;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_parse_duration (query, &format, &val);
if (format == GST_FORMAT_BYTES) {
val = gst_cdxa_parse_convert_sink_to_src_offset (cdxa, val);
gst_query_set_duration (query, format, val);
}
break;
case GST_QUERY_POSITION:
gst_query_parse_position (query, &format, &val);
if (format == GST_FORMAT_BYTES) {
val = gst_cdxa_parse_convert_sink_to_src_offset (cdxa, val);
gst_query_set_position (query, format, val);
}
break;
default:
break;
}
}
gst_object_unref (cdxa);
return res;
}
static gboolean
gst_ts_demux_srcpad_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstTSDemux *demux;
demux = GST_TS_DEMUX (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat format;
gst_query_parse_duration (query, &format, NULL);
/* can only get position in time */
if (format != GST_FORMAT_TIME)
goto wrong_format;
gst_query_set_duration (query, GST_FORMAT_TIME, demux->duration);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
done:
gst_object_unref (demux);
return res;
wrong_format:
{
GST_DEBUG_OBJECT (demux, "only query duration on TIME is supported");
res = FALSE;
goto done;
}
}
static gboolean
gst_ss_demux_handle_src_query (GstPad * pad, GstQuery * query)
{
gboolean res = FALSE;
GstSSDemux *ssdemux = GST_SS_DEMUX (gst_pad_get_parent (pad));
GST_LOG_OBJECT (pad, "%s query", GST_QUERY_TYPE_NAME (query));
// TODO: need to add other query types as well
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:{
GstFormat fmt;
gst_query_parse_duration (query, &fmt, NULL);
if (fmt == GST_FORMAT_TIME) {
gint64 duration = -1;
duration = gst_util_uint64_scale (GST_SSM_PARSE_GET_DURATION(ssdemux->parser), GST_SECOND,
GST_SSM_PARSE_GET_TIMESCALE(ssdemux->parser));
if (duration > 0) {
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
res = TRUE;
}
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (ssdemux);
return res;
}
/* handle queries for location and length in requested format */
static gboolean
gst_aiff_parse_pad_query (GstPad * pad, GstQuery * query)
{
gboolean res = TRUE;
GstAiffParse *aiff = GST_AIFF_PARSE (gst_pad_get_parent (pad));
/* only if we know */
if (aiff->state != AIFF_PARSE_DATA) {
gst_object_unref (aiff);
return FALSE;
}
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
gint64 duration = 0;
GstFormat format;
gst_query_parse_duration (query, &format, NULL);
switch (format) {
case GST_FORMAT_TIME:{
if ((res = gst_aiff_parse_calculate_duration (aiff))) {
duration = aiff->duration;
}
break;
}
default:
format = GST_FORMAT_BYTES;
duration = aiff->datasize;
break;
}
gst_query_set_duration (query, format, duration);
break;
}
case GST_QUERY_CONVERT:
{
gint64 srcvalue, dstvalue;
GstFormat srcformat, dstformat;
gst_query_parse_convert (query, &srcformat, &srcvalue,
&dstformat, &dstvalue);
res = gst_aiff_parse_pad_convert (pad, srcformat, srcvalue,
&dstformat, &dstvalue);
if (res)
gst_query_set_convert (query, srcformat, srcvalue, dstformat, dstvalue);
break;
}
case GST_QUERY_SEEKING:{
GstFormat fmt;
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
if (fmt == GST_FORMAT_TIME) {
gboolean seekable = TRUE;
if (!gst_aiff_parse_calculate_duration (aiff)) {
seekable = FALSE;
}
gst_query_set_seeking (query, GST_FORMAT_TIME, seekable,
0, aiff->duration);
res = TRUE;
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (aiff);
return res;
}
static gboolean
gst_musepackdec_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (parent);
GstFormat format;
gboolean res = FALSE;
gint samplerate;
samplerate = g_atomic_int_get (&musepackdec->rate);
if (samplerate == 0)
goto done;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:{
gint64 cur, cur_off;
gst_query_parse_position (query, &format, NULL);
GST_OBJECT_LOCK (musepackdec);
cur_off = musepackdec->segment.position;
GST_OBJECT_UNLOCK (musepackdec);
if (format == GST_FORMAT_TIME) {
cur = gst_util_uint64_scale_int (cur_off, GST_SECOND, samplerate);
gst_query_set_position (query, GST_FORMAT_TIME, cur);
res = TRUE;
} else if (format == GST_FORMAT_DEFAULT) {
gst_query_set_position (query, GST_FORMAT_DEFAULT, cur_off);
res = TRUE;
}
break;
}
case GST_QUERY_DURATION:{
gint64 len, len_off;
gst_query_parse_duration (query, &format, NULL);
GST_OBJECT_LOCK (musepackdec);
len_off = musepackdec->segment.duration;
GST_OBJECT_UNLOCK (musepackdec);
if (format == GST_FORMAT_TIME) {
len = gst_util_uint64_scale_int (len_off, GST_SECOND, samplerate);
gst_query_set_duration (query, GST_FORMAT_TIME, len);
res = TRUE;
} else if (format == GST_FORMAT_DEFAULT) {
gst_query_set_duration (query, GST_FORMAT_DEFAULT, len_off);
res = TRUE;
}
break;
}
case GST_QUERY_SEEKING:{
GstFormat fmt;
gint64 len, len_off;
res = TRUE;
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
GST_OBJECT_LOCK (musepackdec);
len_off = musepackdec->segment.duration;
GST_OBJECT_UNLOCK (musepackdec);
if (fmt == GST_FORMAT_TIME) {
len = gst_util_uint64_scale_int (len_off, GST_SECOND, samplerate);
gst_query_set_seeking (query, fmt, TRUE, 0, len);
} else if (fmt == GST_FORMAT_DEFAULT) {
gst_query_set_seeking (query, fmt, TRUE, 0, len_off);
} else {
gst_query_set_seeking (query, fmt, FALSE, -1, -1);
}
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
done:
return res;
}
/* FIXME, the duration query should reflect how long you will produce
* data, that is the amount of stream time until you will emit EOS.
*
* For synchronized mixing this is always the max of all the durations
* of upstream since we emit EOS when all of them finished.
*
* We don't do synchronized mixing so this really depends on where the
* streams where punched in and what their relative offsets are against
* eachother which we can get from the first timestamps we see.
*
* When we add a new stream (or remove a stream) the duration might
* also become invalid again and we need to post a new DURATION
* message to notify this fact to the parent.
* For now we take the max of all the upstream elements so the simple
* cases work at least somewhat.
*/
static gboolean
gst_adder_query_duration (GstAdder * adder, GstQuery * query)
{
gint64 max;
gboolean res;
GstFormat format;
GstIterator *it;
gboolean done;
/* parse format */
gst_query_parse_duration (query, &format, NULL);
max = -1;
res = TRUE;
done = FALSE;
it = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (adder));
while (!done) {
GstIteratorResult ires;
gpointer item;
ires = gst_iterator_next (it, &item);
switch (ires) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
{
GstPad *pad = GST_PAD_CAST (item);
gint64 duration;
/* ask sink peer for duration */
res &= gst_pad_query_peer_duration (pad, &format, &duration);
/* take max from all valid return values */
if (res) {
/* valid unknown length, stop searching */
if (duration == -1) {
max = duration;
done = TRUE;
}
/* else see if bigger than current max */
else if (duration > max)
max = duration;
}
gst_object_unref (pad);
break;
}
case GST_ITERATOR_RESYNC:
max = -1;
res = TRUE;
gst_iterator_resync (it);
break;
default:
res = FALSE;
done = TRUE;
break;
}
}
gst_iterator_free (it);
if (res) {
/* and store the max */
GST_DEBUG_OBJECT (adder, "Total duration in format %s: %"
GST_TIME_FORMAT, gst_format_get_name (format), GST_TIME_ARGS (max));
gst_query_set_duration (query, format, max);
}
return res;
}
static gboolean
gst_wildmidi_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
gboolean res = TRUE;
GstWildmidi *wildmidi = GST_WILDMIDI (parent);
GstFormat src_format, dst_format;
gint64 src_value, dst_value;
if (!wildmidi->song)
return FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
gst_query_set_duration (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_len, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_POSITION:
gst_query_set_position (query, GST_FORMAT_TIME,
gst_util_uint64_scale_int (wildmidi->o_segment->position, GST_SECOND,
WILDMIDI_RATE));
break;
case GST_QUERY_CONVERT:
gst_query_parse_convert (query, &src_format, &src_value,
&dst_format, NULL);
res =
gst_wildmidi_src_convert (wildmidi, src_format, src_value,
&dst_format, &dst_value);
if (res)
gst_query_set_convert (query, src_format, src_value, dst_format,
dst_value);
break;
case GST_QUERY_FORMATS:
gst_query_set_formats (query, 3,
GST_FORMAT_TIME, GST_FORMAT_BYTES, GST_FORMAT_DEFAULT);
break;
case GST_QUERY_SEGMENT:{
GstFormat format;
gint64 start, stop;
format = wildmidi->o_segment->format;
start =
gst_segment_to_stream_time (wildmidi->o_segment, format,
wildmidi->o_segment->start);
if ((stop = wildmidi->o_segment->stop) == -1)
stop = wildmidi->o_segment->duration;
else
stop = gst_segment_to_stream_time (wildmidi->o_segment, format, stop);
gst_query_set_segment (query, wildmidi->o_segment->rate, format, start,
stop);
res = TRUE;
break;
}
case GST_QUERY_SEEKING:
gst_query_set_seeking (query, wildmidi->o_segment->format,
TRUE, 0, wildmidi->o_len);
break;
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
return res;
}