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ext/faad/gstfaad.c: Add query function for position/duration querying (mostly for raw AAC streams); make seeking in r...
Original commit message from CVS: * ext/faad/gstfaad.c: (gst_faad_init), (gst_faad_send_tags), (gst_faad_setcaps), (gst_faad_do_raw_seek), (gst_faad_src_event), (gst_faad_sink_event), (gst_faad_src_convert), (gst_faad_src_query), (gst_faad_chain), (gst_faad_change_state): Add query function for position/duration querying (mostly for raw AAC streams); make seeking in raw AAC streams work; post tags with codec name if this is a raw AAC stream.
This commit is contained in:
Tim-Philipp Müller
parent
3152fa1872
commit
cc497a721a
10
ChangeLog
10
ChangeLog
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@ -1,3 +1,13 @@
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2006-03-04 Tim-Philipp Müller <tim at centricular dot net>
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* ext/faad/gstfaad.c: (gst_faad_init), (gst_faad_send_tags),
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(gst_faad_setcaps), (gst_faad_do_raw_seek), (gst_faad_src_event),
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(gst_faad_sink_event), (gst_faad_src_convert),
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(gst_faad_src_query), (gst_faad_chain), (gst_faad_change_state):
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Add query function for position/duration querying (mostly for
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raw AAC streams); make seeking in raw AAC streams work; post
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tags with codec name if this is a raw AAC stream.
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2006-03-04 Sebastien Moutte <sebastien@moutte.net>
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* sys/directdraw:
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@ -114,10 +114,14 @@ static void gst_faad_init (GstFaad * faad);
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static gboolean gst_faad_setcaps (GstPad * pad, GstCaps * caps);
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static GstCaps *gst_faad_srcgetcaps (GstPad * pad);
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static gboolean gst_faad_event (GstPad * pad, GstEvent * event);
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static gboolean gst_faad_src_event (GstPad * pad, GstEvent * event);
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static gboolean gst_faad_sink_event (GstPad * pad, GstEvent * event);
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static gboolean gst_faad_src_query (GstPad * pad, GstQuery * query);
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static GstFlowReturn gst_faad_chain (GstPad * pad, GstBuffer * buffer);
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static GstStateChangeReturn gst_faad_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_faad_src_convert (GstFaad * faad, GstFormat src_format,
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gint64 src_val, GstFormat dest_format, gint64 * dest_val);
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static GstElementClass *parent_class; /* NULL */
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@ -192,7 +196,7 @@ gst_faad_init (GstFaad * faad)
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"sink");
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gst_element_add_pad (GST_ELEMENT (faad), faad->sinkpad);
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gst_pad_set_event_function (faad->sinkpad,
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GST_DEBUG_FUNCPTR (gst_faad_event));
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GST_DEBUG_FUNCPTR (gst_faad_sink_event));
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gst_pad_set_setcaps_function (faad->sinkpad,
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GST_DEBUG_FUNCPTR (gst_faad_setcaps));
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gst_pad_set_chain_function (faad->sinkpad,
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@ -201,10 +205,27 @@ gst_faad_init (GstFaad * faad)
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faad->srcpad =
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gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
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"src");
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gst_element_add_pad (GST_ELEMENT (faad), faad->srcpad);
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gst_pad_use_fixed_caps (faad->srcpad);
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gst_pad_set_getcaps_function (faad->srcpad,
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GST_DEBUG_FUNCPTR (gst_faad_srcgetcaps));
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gst_pad_set_query_function (faad->srcpad,
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GST_DEBUG_FUNCPTR (gst_faad_src_query));
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gst_pad_set_event_function (faad->srcpad,
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GST_DEBUG_FUNCPTR (gst_faad_src_event));
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gst_element_add_pad (GST_ELEMENT (faad), faad->srcpad);
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}
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static void
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gst_faad_send_tags (GstFaad * faad)
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{
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GstTagList *tags;
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tags = gst_tag_list_new ();
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gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
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GST_TAG_AUDIO_CODEC, "MPEG-4 AAC audio", NULL);
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gst_element_found_tags (GST_ELEMENT (faad), tags);
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}
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static gboolean
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@ -257,6 +278,9 @@ gst_faad_setcaps (GstPad * pad, GstCaps * caps)
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faad->need_channel_setup = TRUE;
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if (!faad->packetised)
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gst_faad_send_tags (faad);
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return TRUE;
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}
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@ -657,18 +681,77 @@ gst_faad_srcconnect (GstPad * pad, const GstCaps * caps)
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}*/
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static gboolean
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gst_faad_event (GstPad * pad, GstEvent * event)
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gst_faad_do_raw_seek (GstFaad * faad, GstEvent * event)
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{
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GstSeekFlags flags;
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GstSeekType start_type, end_type;
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GstFormat format;
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gdouble rate;
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gint64 start, start_time;
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gst_event_parse_seek (event, &rate, &format, &flags, &start_type,
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&start_time, &end_type, NULL);
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if (rate != 1.0 ||
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format != GST_FORMAT_TIME ||
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start_type != GST_SEEK_TYPE_SET || end_type != GST_SEEK_TYPE_NONE) {
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return FALSE;
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}
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if (!gst_faad_src_convert (faad, GST_FORMAT_TIME, start_time,
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GST_FORMAT_BYTES, &start)) {
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return FALSE;
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}
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event = gst_event_new_seek (1.0, GST_FORMAT_BYTES, flags,
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GST_SEEK_TYPE_SET, start, GST_SEEK_TYPE_NONE, -1);
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GST_DEBUG_OBJECT (faad, "seeking to %" GST_TIME_FORMAT " at byte offset %"
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G_GINT64_FORMAT, GST_TIME_ARGS (start_time), start);
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return gst_pad_send_event (GST_PAD_PEER (faad->sinkpad), event);
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}
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static gboolean
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gst_faad_src_event (GstPad * pad, GstEvent * event)
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{
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GstFaad *faad;
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gboolean res;
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faad = GST_FAAD (gst_pad_get_parent (pad));
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GST_LOG_OBJECT (faad, "Handling %s event", GST_EVENT_TYPE_NAME (event));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_SEEK:{
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/* try upstream first, there might be a demuxer */
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gst_event_ref (event);
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if (!(res = gst_pad_event_default (pad, event))) {
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res = gst_faad_do_raw_seek (faad, event);
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}
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gst_event_unref (event);
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break;
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}
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default:
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res = gst_pad_event_default (pad, event);
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break;
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}
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gst_object_unref (faad);
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return res;
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}
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static gboolean
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gst_faad_sink_event (GstPad * pad, GstEvent * event)
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{
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GstFaad *faad;
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gboolean res = TRUE;
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faad = GST_FAAD (gst_pad_get_parent (pad));
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GST_LOG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
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GST_LOG_OBJECT (faad, "Handling %s event", GST_EVENT_TYPE_NAME (event));
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/* FIXME: we should probably handle FLUSH and also
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* SEEK in the case where we are not in a container
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* (when our newsegment was in BYTES) */
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/* FIXME: we should probably handle FLUSH */
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_EOS:
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if (faad->tempbuf != NULL) {
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@ -691,31 +774,33 @@ gst_faad_event (GstPad * pad, GstEvent * event)
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GST_TIME_FORMAT " - %" GST_TIME_FORMAT ")", GST_TIME_ARGS (start),
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GST_TIME_ARGS (end));
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} else if (fmt == GST_FORMAT_BYTES) {
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GstEvent *new_ev;
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guint64 new_start = 0;
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guint64 new_end = GST_CLOCK_TIME_NONE;
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gint64 new_start = 0;
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gint64 new_end = -1;
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GST_DEBUG ("Got NEWSEGMENT event in GST_FORMAT_BYTES (%"
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G_GUINT64_FORMAT " - %" G_GUINT64_FORMAT ")", start, end);
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if (faad->bytes_in > 0 && faad->sum_dur_out > 0) {
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/* try to convert based on the average bitrate so far */
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new_start = (faad->sum_dur_out * start) / faad->bytes_in;
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if (new_end != (guint64) - 1) {
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new_end = (faad->sum_dur_out * end) / faad->bytes_in;
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if (gst_faad_src_convert (faad, GST_FORMAT_BYTES, start,
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GST_FORMAT_TIME, &new_start)) {
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if (end != -1) {
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gst_faad_src_convert (faad, GST_FORMAT_BYTES, end,
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GST_FORMAT_TIME, &new_end);
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}
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} else {
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GST_DEBUG
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("no average bitrate yet, sending newsegment with start at 0");
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}
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new_ev =
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gst_event_new_new_segment (is_update, rate, GST_FORMAT_TIME,
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new_start, new_end, base);
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gst_event_unref (event);
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event = new_ev;
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event = gst_event_new_new_segment (is_update, rate,
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GST_FORMAT_TIME, new_start, new_end, new_start);
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GST_DEBUG ("Sending new NEWSEGMENT event, time %" GST_TIME_FORMAT
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" - %" GST_TIME_FORMAT, GST_TIME_ARGS (new_start),
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GST_TIME_ARGS (new_end));
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faad->next_ts = new_start;
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faad->prev_ts = GST_CLOCK_TIME_NONE;
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}
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res = gst_pad_push_event (faad->srcpad, event);
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@ -726,9 +811,141 @@ gst_faad_event (GstPad * pad, GstEvent * event)
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break;
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}
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gst_object_unref (faad);
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return res;
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}
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static gboolean
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gst_faad_src_convert (GstFaad * faad, GstFormat src_format, gint64 src_val,
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GstFormat dest_format, gint64 * dest_val)
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{
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guint64 bytes_in, time_out, val;
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if (src_format == dest_format) {
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if (dest_val)
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*dest_val = src_val;
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return TRUE;
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}
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GST_OBJECT_LOCK (faad);
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bytes_in = faad->bytes_in;
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time_out = faad->sum_dur_out;
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GST_OBJECT_UNLOCK (faad);
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if (bytes_in == 0 || time_out == 0)
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return FALSE;
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/* convert based on the average bitrate so far */
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if (src_format == GST_FORMAT_BYTES && dest_format == GST_FORMAT_TIME) {
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val = gst_util_uint64_scale (src_val, time_out, bytes_in);
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} else if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_BYTES) {
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val = gst_util_uint64_scale (src_val, bytes_in, time_out);
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} else {
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return FALSE;
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}
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if (dest_val)
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*dest_val = (gint64) val;
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return TRUE;
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}
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static gboolean
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gst_faad_src_query (GstPad * pad, GstQuery * query)
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{
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gboolean res = FALSE;
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GstFaad *faad;
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GstPad *peer = NULL;
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faad = GST_FAAD (gst_pad_get_parent (pad));
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GST_LOG_OBJECT (faad, "processing %s query", GST_QUERY_TYPE_NAME (query));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_DURATION:{
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GstFormat format;
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gint64 len_bytes, duration;
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/* try upstream first, in case there's a demuxer */
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if ((res = gst_pad_query_default (pad, query)))
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break;
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gst_query_parse_duration (query, &format, NULL);
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if (format != GST_FORMAT_TIME) {
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GST_DEBUG_OBJECT (faad, "query failed: can't handle format %s",
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gst_format_get_name (format));
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break;
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}
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peer = gst_pad_get_peer (faad->sinkpad);
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if (peer == NULL)
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break;
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format = GST_FORMAT_BYTES;
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if (!gst_pad_query_duration (peer, &format, &len_bytes)) {
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GST_DEBUG_OBJECT (faad, "query failed: failed to get upstream length");
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break;
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}
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res = gst_faad_src_convert (faad, GST_FORMAT_BYTES, len_bytes,
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GST_FORMAT_TIME, &duration);
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if (res) {
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gst_query_set_duration (query, GST_FORMAT_TIME, duration);
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GST_LOG_OBJECT (faad, "duration estimate: %" GST_TIME_FORMAT,
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GST_TIME_ARGS (duration));
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}
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break;
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}
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case GST_QUERY_POSITION:{
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GstFormat format;
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gint64 pos_bytes, pos;
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/* try upstream first, in case there's a demuxer */
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if ((res = gst_pad_query_default (pad, query)))
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break;
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gst_query_parse_position (query, &format, NULL);
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if (format != GST_FORMAT_TIME) {
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GST_DEBUG_OBJECT (faad, "query failed: can't handle format %s",
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gst_format_get_name (format));
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break;
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}
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peer = gst_pad_get_peer (faad->sinkpad);
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if (peer == NULL)
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break;
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format = GST_FORMAT_BYTES;
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if (!gst_pad_query_position (peer, &format, &pos_bytes)) {
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GST_OBJECT_LOCK (faad);
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pos = faad->next_ts;
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GST_OBJECT_UNLOCK (faad);
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res = TRUE;
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} else {
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res = gst_faad_src_convert (faad, GST_FORMAT_BYTES, pos_bytes,
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GST_FORMAT_TIME, &pos);
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}
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if (res) {
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gst_query_set_position (query, GST_FORMAT_TIME, pos);
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}
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break;
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}
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default:
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res = gst_pad_query_default (pad, query);
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break;
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}
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if (peer)
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gst_object_unref (peer);
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gst_object_unref (faad);
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return res;
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}
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static gboolean
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gst_faad_update_caps (GstFaad * faad, faacDecFrameInfo * info,
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GstCaps ** p_caps)
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@ -852,6 +1069,10 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
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faad = GST_FAAD (gst_pad_get_parent (pad));
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GST_OBJECT_LOCK (faad);
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faad->bytes_in += GST_BUFFER_SIZE (buffer);
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GST_OBJECT_UNLOCK (faad);
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if (GST_BUFFER_TIMESTAMP (buffer) != GST_CLOCK_TIME_NONE) {
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/* some demuxers send multiple buffers in a row
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* with the same timestamp (e.g. matroskademux) */
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@ -901,6 +1122,7 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
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/* make sure we create new caps below */
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faad->samplerate = 0;
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faad->channels = 0;
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gst_faad_send_tags (faad);
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}
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/* decode cycle */
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@ -981,8 +1203,10 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
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GST_BUFFER_DURATION (outbuf) =
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GST_FRAMES_TO_CLOCK_TIME (num_samples, faad->samplerate);
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GST_OBJECT_LOCK (faad);
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faad->next_ts += GST_BUFFER_DURATION (outbuf);
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faad->sum_dur_out += GST_BUFFER_DURATION (outbuf);
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GST_OBJECT_UNLOCK (faad);
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GST_DEBUG ("pushing buffer, off=%" G_GUINT64_FORMAT ", ts=%"
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GST_TIME_FORMAT, GST_BUFFER_OFFSET (outbuf),
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@ -1007,8 +1231,6 @@ next:
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}
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}
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faad->bytes_in += input_size;
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out:
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if (caps)
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@ -1060,6 +1282,8 @@ gst_faad_change_state (GstElement * element, GstStateChange transition)
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faad->channel_positions = NULL;
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faad->next_ts = 0;
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faad->prev_ts = GST_CLOCK_TIME_NONE;
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faad->bytes_in = 0;
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faad->sum_dur_out = 0;
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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faacDecClose (faad->handle);
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