mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-18 14:26:43 +00:00
qtdemux: prepare qtdemux to accept multiple dash moovs in a row
Whenever dashdemux switches bitrates it sends a new moov with the new stream configuration. qtdemux should now handle this by splitting the exposing and configuration of streams into separate functions. When the stream is new it is configured and exposed, when it is a new bitrate of an existing stream it is only reconfigured. Conflicts: gst/isomp4/qtdemux.c
This commit is contained in:
Thiago Santos
parent
2a7d3d1598
commit
6c69e59677
1 changed files with 122 additions and 55 deletions
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@ -416,6 +416,8 @@ static GstFlowReturn gst_qtdemux_chain (GstPad * sinkpad, GstObject * parent,
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static gboolean gst_qtdemux_handle_sink_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_qtdemux_setcaps (GstQTDemux * qtdemux, GstCaps * caps);
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static gboolean gst_qtdemux_configure_stream (GstQTDemux * qtdemux,
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QtDemuxStream * stream);
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static gboolean qtdemux_parse_moov (GstQTDemux * qtdemux,
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const guint8 * buffer, guint length);
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@ -443,6 +445,7 @@ static gboolean qtdemux_parse_samples (GstQTDemux * qtdemux,
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static GstFlowReturn qtdemux_expose_streams (GstQTDemux * qtdemux);
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static void gst_qtdemux_stream_free (GstQTDemux * qtdemux,
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QtDemuxStream * stream);
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static GstFlowReturn qtdemux_prepare_streams (GstQTDemux * qtdemux);
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static void
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gst_qtdemux_class_init (GstQTDemuxClass * klass)
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@ -3008,6 +3011,7 @@ gst_qtdemux_loop_state_header (GstQTDemux * qtdemux)
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beach:
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if (ret == GST_FLOW_EOS && (qtdemux->got_moov || qtdemux->media_caps)) {
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/* digested all data, show what we have */
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qtdemux_prepare_streams (qtdemux);
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ret = qtdemux_expose_streams (qtdemux);
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qtdemux->state = QTDEMUX_STATE_MOVIE;
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@ -4345,8 +4349,9 @@ gst_qtdemux_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * inbuf)
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gst_adapter_push (demux->adapter, inbuf);
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/* we never really mean to buffer that much */
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if (demux->neededbytes == -1)
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if (demux->neededbytes == -1) {
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goto eos;
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}
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GST_DEBUG_OBJECT (demux,
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"pushing in inbuf %p, neededbytes:%u, available:%" G_GSIZE_FORMAT, inbuf,
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@ -4479,7 +4484,10 @@ gst_qtdemux_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * inbuf)
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} else {
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GST_DEBUG_OBJECT (demux, "Parsing [moov]");
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demux->got_moov = TRUE;
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if (demux->got_moov && demux->fragmented) {
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GST_DEBUG_OBJECT (demux,
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"Got a second moov, clean up data from old one");
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}
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/* prepare newsegment to send when streaming actually starts */
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if (!demux->pending_newsegment)
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@ -4489,7 +4497,20 @@ gst_qtdemux_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * inbuf)
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qtdemux_parse_moov (demux, data, demux->neededbytes);
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qtdemux_node_dump (demux, demux->moov_node);
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qtdemux_parse_tree (demux);
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qtdemux_expose_streams (demux);
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qtdemux_prepare_streams (demux);
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if (!demux->got_moov)
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qtdemux_expose_streams (demux);
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else {
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gint n;
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for (n = 0; n < demux->n_streams; n++) {
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QtDemuxStream *stream = demux->streams[n];
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gst_qtdemux_configure_stream (demux, stream);
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}
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}
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demux->got_moov = TRUE;
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g_node_destroy (demux->moov_node);
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demux->moov_node = NULL;
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@ -5355,19 +5376,9 @@ qtdemux_do_allocation (GstQTDemux * qtdemux, QtDemuxStream * stream)
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}
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static gboolean
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gst_qtdemux_add_stream (GstQTDemux * qtdemux,
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QtDemuxStream * stream, GstTagList * list)
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gst_qtdemux_configure_stream (GstQTDemux * qtdemux, QtDemuxStream * stream)
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{
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/* consistent default for push based mode */
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gst_segment_init (&stream->segment, GST_FORMAT_TIME);
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if (stream->subtype == FOURCC_vide) {
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gchar *name = g_strdup_printf ("video_%u", qtdemux->n_video_streams);
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stream->pad =
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gst_pad_new_from_static_template (&gst_qtdemux_videosrc_template, name);
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g_free (name);
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/* fps is calculated base on the duration of the first frames since
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* qt does not have a fixed framerate. */
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if ((stream->n_samples == 1) && (stream->min_duration == 0)) {
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@ -5478,18 +5489,11 @@ gst_qtdemux_add_stream (GstQTDemux * qtdemux,
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stream->pad = NULL;
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}
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}
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qtdemux->n_video_streams++;
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} else if (stream->subtype == FOURCC_soun) {
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gchar *name = g_strdup_printf ("audio_%u", qtdemux->n_audio_streams);
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stream->pad =
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gst_pad_new_from_static_template (&gst_qtdemux_audiosrc_template, name);
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g_free (name);
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if (stream->caps) {
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gst_caps_set_simple (stream->caps,
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"rate", G_TYPE_INT, (int) stream->rate,
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"channels", G_TYPE_INT, stream->n_channels, NULL);
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if (stream->n_channels > 2) {
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/* FIXME: Need to parse the 'chan' atom to get channel layouts
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* correctly; this is just the minimum we can do - assume
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@ -5498,6 +5502,53 @@ gst_qtdemux_add_stream (GstQTDemux * qtdemux,
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"channel-mask", GST_TYPE_BITMASK, G_GUINT64_CONSTANT (0), NULL);
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}
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}
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}
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if (stream->pad) {
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gchar *stream_id;
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GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
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gst_pad_set_event_function (stream->pad, gst_qtdemux_handle_src_event);
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gst_pad_set_query_function (stream->pad, gst_qtdemux_handle_src_query);
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gst_pad_set_active (stream->pad, TRUE);
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gst_pad_use_fixed_caps (stream->pad);
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GST_DEBUG_OBJECT (qtdemux, "setting caps %" GST_PTR_FORMAT, stream->caps);
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stream_id =
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gst_pad_create_stream_id_printf (stream->pad,
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GST_ELEMENT_CAST (qtdemux), "%03u", stream->track_id);
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gst_pad_push_event (stream->pad, gst_event_new_stream_start (stream_id));
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g_free (stream_id);
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gst_pad_set_caps (stream->pad, stream->caps);
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}
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return TRUE;
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}
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static gboolean
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gst_qtdemux_add_stream (GstQTDemux * qtdemux,
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QtDemuxStream * stream, GstTagList * list)
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{
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/* consistent default for push based mode */
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gst_segment_init (&stream->segment, GST_FORMAT_TIME);
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if (stream->subtype == FOURCC_vide) {
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gchar *name = g_strdup_printf ("video_%u", qtdemux->n_video_streams);
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stream->pad =
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gst_pad_new_from_static_template (&gst_qtdemux_videosrc_template, name);
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g_free (name);
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gst_qtdemux_configure_stream (qtdemux, stream);
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qtdemux->n_video_streams++;
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} else if (stream->subtype == FOURCC_soun) {
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gchar *name = g_strdup_printf ("audio_%u", qtdemux->n_audio_streams);
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stream->pad =
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gst_pad_new_from_static_template (&gst_qtdemux_audiosrc_template, name);
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g_free (name);
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gst_qtdemux_configure_stream (qtdemux, stream);
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qtdemux->n_audio_streams++;
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} else if (stream->subtype == FOURCC_strm) {
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GST_DEBUG_OBJECT (qtdemux, "stream type, not creating pad");
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@ -5508,6 +5559,7 @@ gst_qtdemux_add_stream (GstQTDemux * qtdemux,
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stream->pad =
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gst_pad_new_from_static_template (&gst_qtdemux_subsrc_template, name);
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g_free (name);
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gst_qtdemux_configure_stream (qtdemux, stream);
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qtdemux->n_sub_streams++;
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} else if (stream->caps) {
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gchar *name = g_strdup_printf ("video_%u", qtdemux->n_video_streams);
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@ -5522,23 +5574,6 @@ gst_qtdemux_add_stream (GstQTDemux * qtdemux,
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}
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if (stream->pad) {
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gchar *stream_id;
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GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
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gst_pad_use_fixed_caps (stream->pad);
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gst_pad_set_event_function (stream->pad, gst_qtdemux_handle_src_event);
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gst_pad_set_query_function (stream->pad, gst_qtdemux_handle_src_query);
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gst_pad_set_active (stream->pad, TRUE);
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GST_DEBUG_OBJECT (qtdemux, "setting caps %" GST_PTR_FORMAT, stream->caps);
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stream_id =
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gst_pad_create_stream_id_printf (stream->pad,
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GST_ELEMENT_CAST (qtdemux), "%03u", stream->track_id);
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gst_pad_push_event (stream->pad, gst_event_new_stream_start (stream_id));
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g_free (stream_id);
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gst_pad_set_caps (stream->pad, stream->caps);
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GST_DEBUG_OBJECT (qtdemux, "adding pad %s %p to qtdemux %p",
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GST_OBJECT_NAME (stream->pad), stream->pad, qtdemux);
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gst_element_add_pad (GST_ELEMENT_CAST (qtdemux), stream->pad);
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@ -5694,6 +5729,7 @@ static gboolean
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qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
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{
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stream->stbl_index = -1; /* no samples have yet been parsed */
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stream->sample_index = -1;
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/* time-to-sample atom */
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if (!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stts, &stream->stts))
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@ -6714,7 +6750,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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GNode *wave;
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GNode *esds;
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GNode *pasp;
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QtDemuxStream *stream;
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QtDemuxStream *stream = NULL;
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GstTagList *list = NULL;
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gchar *codec = NULL;
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const guint8 *stsd_data;
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@ -6724,8 +6760,9 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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guint8 tkhd_version = 0;
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guint32 fourcc;
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guint value_size, len;
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guint32 track_id;
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stream = _create_stream ();
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GST_DEBUG_OBJECT (qtdemux, "parse_trak");
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if (!qtdemux_tree_get_child_by_type_full (trak, FOURCC_tkhd, &tkhd)
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|| !gst_byte_reader_get_uint8 (&tkhd, &tkhd_version)
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@ -6738,11 +6775,20 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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/* pick between 64 or 32 bits */
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value_size = tkhd_version == 1 ? 8 : 4;
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if (!gst_byte_reader_skip (&tkhd, value_size * 2) ||
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!gst_byte_reader_get_uint32_be (&tkhd, &stream->track_id))
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!gst_byte_reader_get_uint32_be (&tkhd, &track_id))
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goto corrupt_file;
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if (qtdemux_find_stream (qtdemux, stream->track_id))
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goto existing_stream;
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if (!qtdemux->got_moov) {
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if (!qtdemux->got_moov && qtdemux_find_stream (qtdemux, track_id))
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goto existing_stream;
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stream = _create_stream ();
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stream->track_id = track_id;
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} else {
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stream = qtdemux_find_stream (qtdemux, track_id);
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if (!stream) {
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GST_WARNING_OBJECT (qtdemux, "Stream not found, going to ignore it");
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}
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}
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GST_LOG_OBJECT (qtdemux, "track[tkhd] version/flags/id: 0x%02x/%06x/%u",
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tkhd_version, tkhd_flags, stream->track_id);
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@ -7904,10 +7950,12 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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if (qtdemux->n_streams >= GST_QTDEMUX_MAX_STREAMS)
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goto too_many_streams;
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stream->pending_tags = list;
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qtdemux->streams[qtdemux->n_streams] = stream;
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qtdemux->n_streams++;
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GST_DEBUG_OBJECT (qtdemux, "n_streams is now %d", qtdemux->n_streams);
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if (!qtdemux->got_moov) {
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stream->pending_tags = list;
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qtdemux->streams[qtdemux->n_streams] = stream;
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qtdemux->n_streams++;
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GST_DEBUG_OBJECT (qtdemux, "n_streams is now %d", qtdemux->n_streams);
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}
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return TRUE;
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@ -7943,8 +7991,9 @@ segments_failed:
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existing_stream:
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{
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GST_INFO_OBJECT (qtdemux, "stream with track id %i already exists",
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stream->track_id);
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g_free (stream);
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track_id);
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if (stream)
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g_free (stream);
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return TRUE;
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}
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unknown_stream:
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@ -8059,22 +8108,18 @@ gst_qtdemux_guess_bitrate (GstQTDemux * qtdemux)
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}
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static GstFlowReturn
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qtdemux_expose_streams (GstQTDemux * qtdemux)
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qtdemux_prepare_streams (GstQTDemux * qtdemux)
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{
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gint i;
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GstFlowReturn ret = GST_FLOW_OK;
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GSList *oldpads = NULL;
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GSList *iter;
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GST_DEBUG_OBJECT (qtdemux, "exposing streams");
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GST_DEBUG_OBJECT (qtdemux, "prepare streams");
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for (i = 0; ret == GST_FLOW_OK && i < qtdemux->n_streams; i++) {
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QtDemuxStream *stream = qtdemux->streams[i];
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GstPad *oldpad = stream->pad;
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guint32 sample_num = 0;
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guint samples = 20;
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GArray *durations;
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GstTagList *list;
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GST_DEBUG_OBJECT (qtdemux, "stream %d, id %d, fourcc %" GST_FOURCC_FORMAT,
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i, stream->track_id, GST_FOURCC_ARGS (stream->fourcc));
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@ -8129,6 +8174,28 @@ qtdemux_expose_streams (GstQTDemux * qtdemux)
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stream->min_duration = g_array_index (durations, guint32, samples / 2);
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g_array_free (durations, TRUE);
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}
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}
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return ret;
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}
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static GstFlowReturn
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qtdemux_expose_streams (GstQTDemux * qtdemux)
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{
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gint i;
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GstFlowReturn ret = GST_FLOW_OK;
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GSList *oldpads = NULL;
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GSList *iter;
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GST_DEBUG_OBJECT (qtdemux, "exposing streams");
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for (i = 0; ret == GST_FLOW_OK && i < qtdemux->n_streams; i++) {
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QtDemuxStream *stream = qtdemux->streams[i];
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GstPad *oldpad = stream->pad;
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GstTagList *list;
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GST_DEBUG_OBJECT (qtdemux, "stream %d, id %d, fourcc %" GST_FOURCC_FORMAT,
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i, stream->track_id, GST_FOURCC_ARGS (stream->fourcc));
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/* now we have all info and can expose */
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list = stream->pending_tags;
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