flvmux: create streamable output if downstream is not seekable

Ignore the "streamable" property setting and create streamable
output if downstream is known not to be seekable (as queried
via a SEEKABLE query).

Fixes pipelines like flvmux ! appsink possibly creating seemingly
corrupted output if streamable has not been set to true.
This commit is contained in:
Tim-Philipp Müller 2012-02-25 15:48:44 +00:00
parent f4afccff5c
commit 6b0dd47586

View file

@ -1106,6 +1106,29 @@ gst_flv_mux_write_header (GstFlvMux * mux)
GSList *l;
GstFlowReturn ret;
/* if not streaming, check if downstream is seekable */
if (!mux->streamable) {
gboolean seekable;
GstQuery *query;
query = gst_query_new_seeking (GST_FORMAT_BYTES);
if (gst_pad_peer_query (mux->srcpad, query)) {
gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
GST_INFO_OBJECT (mux, "downstream is %sseekable", seekable ? "" : "not ");
if (!seekable) {
mux->streamable = TRUE;
g_object_notify (G_OBJECT (mux), "streamable");
GST_WARNING_OBJECT (mux, "downstream is not seekable, but "
"streamable=false. Will ignore that and create streamable output "
"instead");
}
} else {
/* have to assume seeking is supported if query not handled downstream */
/* FIXME 0.11: change to query not handled => seeking not supported */
GST_WARNING_OBJECT (mux, "downstream did not handle seeking query");
}
}
header = gst_flv_mux_create_header (mux);
metadata = gst_flv_mux_create_metadata (mux, TRUE);
video_codec_data = NULL;