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splitmuxsink: add a "format-location" signal that allows better control over filenames

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In certain applications, splitting into files named after a base
location template and an incremental sequence number is not enough.

This signal gives more fine-grained control to the application to
decide how to name the files.

https://bugzilla.gnome.org/show_bug.cgi?id=750106
This commit is contained in:
George Kiagiadakis 2015-04-15 18:27:04 +02:00
parent e9fbdc3682
commit bbfa46363c
1 changed files with 28 additions and 3 deletions
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31
gst/multifile/gstsplitmuxsink.c
View file

@ -80,6 +80,14 @@ enum
#define DEFAULT_MUXER "mp4mux" #define DEFAULT_MUXER "mp4mux"
#define DEFAULT_SINK "filesink" #define DEFAULT_SINK "filesink"
enum
{
SIGNAL_FORMAT_LOCATION,
SIGNAL_LAST
};
static guint signals[SIGNAL_LAST];
static GstStaticPadTemplate video_sink_template = static GstStaticPadTemplate video_sink_template =
GST_STATIC_PAD_TEMPLATE ("video", GST_STATIC_PAD_TEMPLATE ("video",
GST_PAD_SINK, GST_PAD_SINK,
@ -202,6 +210,17 @@ gst_splitmux_sink_class_init (GstSplitMuxSinkClass * klass)
g_param_spec_object ("sink", "Sink", g_param_spec_object ("sink", "Sink",
"The sink element (or element chain) to use (NULL = default filesink)", "The sink element (or element chain) to use (NULL = default filesink)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstSplitMuxSink::format-location:
* @splitmux: the #GstSplitMuxSink
* @fragment_id: the sequence number of the file to be created
*
* Returns: the location to be used for the next output file
*/
signals[SIGNAL_FORMAT_LOCATION] =
g_signal_new ("format-location", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_STRING, 1, G_TYPE_UINT);
} }
static void static void
@ -1416,10 +1435,16 @@ fail:
static void static void
set_next_filename (GstSplitMuxSink * splitmux) set_next_filename (GstSplitMuxSink * splitmux)
{ {
if (splitmux->location) { gchar *fname = NULL;
gchar *fname;
fname = g_strdup_printf (splitmux->location, splitmux->fragment_id); g_signal_emit (splitmux, signals[SIGNAL_FORMAT_LOCATION], 0,
splitmux->fragment_id, &fname);
if (!fname)
fname = splitmux->location ?
g_strdup_printf (splitmux->location, splitmux->fragment_id) : NULL;
if (fname) {
GST_INFO_OBJECT (splitmux, "Setting file to %s", fname); GST_INFO_OBJECT (splitmux, "Setting file to %s", fname);
g_object_set (splitmux->sink, "location", fname, NULL); g_object_set (splitmux->sink, "location", fname, NULL);
g_free (fname); g_free (fname);