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isomp4: Update edit list when re-writing moov

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Correctly update any edit lists each time the moov is recalculated,
updating existing table entries if they already exist instead of just
adding new ones.
This commit is contained in:
Jan Schmidt 2015-04-01 00:58:52 +11:00
parent 0c1bcc629d
commit 3d7b343525
3 changed files with 34 additions and 21 deletions
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34
gst/isomp4/atoms.c
View file

@ -3279,31 +3279,41 @@ atom_tkhd_set_subtitle (AtomTKHD * tkhd, AtomsContext * context, guint32 width,
static void
atom_edts_add_entry (AtomEDTS * edts, EditListEntry * entry)
atom_edts_add_entry (AtomEDTS * edts, gint index, EditListEntry * entry)
{
edts->elst.entries = g_slist_append (edts->elst.entries, entry);
EditListEntry *e =
(EditListEntry *) g_slist_nth_data (edts->elst.entries, index);
/* Create a new entry if missing (appends to the list if index is larger) */
if (e == NULL) {
e = g_new (EditListEntry, 1);
edts->elst.entries = g_slist_insert (edts->elst.entries, e, index);
}
/* Update the entry */
*e = *entry;
}
/*
* Adds a new entry to this trak edits list
* Update an entry in this trak edits list, creating it if needed.
* index is the index of the entry to update, or create if it's past the end.
* duration is in the moov's timescale
* media_time is the offset in the media time to start from (media's timescale)
* rate is a 32 bits fixed-point
*/
void
atom_trak_add_elst_entry (AtomTRAK * trak, guint32 duration, guint32 media_time,
guint32 rate)
atom_trak_set_elst_entry (AtomTRAK * trak, gint index,
guint32 duration, guint32 media_time, guint32 rate)
{
EditListEntry *entry = g_new (EditListEntry, 1);
EditListEntry entry;
entry->duration = duration;
entry->media_time = media_time;
entry->media_rate = rate;
entry.duration = duration;
entry.media_time = media_time;
entry.media_rate = rate;
if (trak->edts == NULL) {
if (trak->edts == NULL)
trak->edts = atom_edts_new ();
}
atom_edts_add_entry (trak->edts, entry);
atom_edts_add_entry (trak->edts, index, &entry);
}
/* re-negotiation is prevented at top-level, so only 1 entry expected.

2
gst/isomp4/atoms.h
View file

@ -828,7 +828,7 @@ AtomTRAK* atom_trak_new (AtomsContext *context);
void atom_trak_add_samples (AtomTRAK * trak, guint32 nsamples, guint32 delta,
guint32 size, guint64 chunk_offset, gboolean sync,
gint64 pts_offset);
void atom_trak_add_elst_entry (AtomTRAK * trak, guint32 duration,
void atom_trak_set_elst_entry (AtomTRAK * trak, gint index, guint32 duration,
guint32 media_time, guint32 rate);
guint32 atom_trak_get_timescale (AtomTRAK *trak);
guint32 atom_trak_get_id (AtomTRAK * trak);

17
gst/isomp4/gstqtmux.c
View file

@ -249,7 +249,6 @@ enum
#define DEFAULT_DTS_METHOD DTS_METHOD_REORDER
#endif
static void gst_qt_mux_finalize (GObject * object);
static GstStateChangeReturn gst_qt_mux_change_state (GstElement * element,
@ -2110,25 +2109,29 @@ gst_qt_mux_stop_file (GstQTMux * qtmux)
first_ts = qtpad->first_ts;
}
}
GST_DEBUG_OBJECT (qtmux, "Media first ts selected: %" GST_TIME_FORMAT,
GST_TIME_ARGS (first_ts));
/* add EDTSs for late streams */
/* add/update EDTSs for late streams. configure_moov will have
* set the trak durations above by summing the sample tables */
for (walk = qtmux->collect->data; walk; walk = g_slist_next (walk)) {
GstCollectData *cdata = (GstCollectData *) walk->data;
GstQTPad *qtpad = (GstQTPad *) cdata;
guint32 lateness;
guint32 duration;
if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts) && qtpad->first_ts > first_ts) {
if (GST_CLOCK_TIME_IS_VALID (qtpad->first_ts)
&& qtpad->first_ts > first_ts) {
GST_DEBUG_OBJECT (qtmux, "Pad %s is a late stream by %" GST_TIME_FORMAT,
GST_PAD_NAME (qtpad->collect.pad),
GST_TIME_ARGS (qtpad->first_ts - first_ts));
lateness = gst_util_uint64_scale_round (qtpad->first_ts - first_ts,
timescale, GST_SECOND);
lateness =
gst_util_uint64_scale_round (qtpad->first_ts - first_ts, timescale,
GST_SECOND);
duration = qtpad->trak->tkhd.duration;
atom_trak_add_elst_entry (qtpad->trak, lateness, (guint32) - 1,
atom_trak_set_elst_entry (qtpad->trak, 0, lateness, (guint32) - 1,
(guint32) (1 * 65536.0));
atom_trak_add_elst_entry (qtpad->trak, duration, 0,
atom_trak_set_elst_entry (qtpad->trak, 1, duration, 0,
(guint32) (1 * 65536.0));
/* need to add the empty time to the trak duration */