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qtmux: handle issues correctly when downstream is not seekable

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The streamable property only make sense for fragmented formats.
For regular MP4, when downstream is not seekable we can't rewrite
the headers, so qtmux can only work with fast-start=TRUE, where
the headers are written finishing the file.
For fragmented MP4, when streamable is not seekable and the streamable
property is FALSE, we must enforce streamable=TRUE warning the user
about this change

https://bugzilla.gnome.org/show_bug.cgi?id=707242
This commit is contained in:
Andoni Morales Alastruey 2013-09-17 12:17:54 +02:00 committed by Sebastian Dröge
parent 9ae5082204
commit cfefdaebb6
1 changed files with 23 additions and 7 deletions
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30
gst/isomp4/gstqtmux.c
View file

@ -1615,6 +1615,7 @@ serialize_error:
static GstFlowReturn
gst_qt_mux_start_file (GstQTMux * qtmux)
{
GstQTMuxClass *qtmux_klass = (GstQTMuxClass *) (G_OBJECT_GET_CLASS (qtmux));
GstFlowReturn ret = GST_FLOW_OK;
GstCaps *caps;
GstSegment segment;
@ -1648,14 +1649,20 @@ gst_qt_mux_start_file (GstQTMux * qtmux)
GST_WARNING_OBJECT (qtmux, "downstream did not handle seeking query");
seekable = FALSE;
}
if (!seekable) {
qtmux->streamable = TRUE;
g_object_notify (G_OBJECT (qtmux), "streamable");
GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
"streamable=false. Will ignore that and create streamable output "
"instead");
}
gst_query_unref (query);
if (!seekable) {
if (qtmux_klass->format != GST_QT_MUX_FORMAT_ISML) {
if (!qtmux->fast_start) {
goto not_seekable_error;
}
} else {
GST_WARNING_OBJECT (qtmux, "downstream is not seekable, but "
"streamable=false. Will ignore that and create streamable output "
"instead");
qtmux->streamable = TRUE;
g_object_notify (G_OBJECT (qtmux), "streamable");
}
}
}
/* let downstream know we think in BYTES and expect to do seeking later on */
@ -1767,6 +1774,15 @@ gst_qt_mux_start_file (GstQTMux * qtmux)
exit:
return ret;
not_seekable_error:
{
GST_ELEMENT_ERROR (qtmux, STREAM, FAILED,
("Downstream is not seekable and headers can't be rewritten"),
GST_ERROR_SYSTEM);
GST_OBJECT_UNLOCK (qtmux);
return GST_FLOW_ERROR;
}
/* ERRORS */
open_failed:
{