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matroskamux: make default framerate optional per stream
there is at least two use cases where default frame rate should or may be disabled: - vp8 stream with altref frame enabled. If default frame rate is enabled, some players will missinterprete it (critical!) - for webm container, to reduce micro overhead - for stream with variable frame rate. Signed-off-by: Alexey Fisher <bug-track@fisher-privat.net>
This commit is contained in:
Alexey Fisher
Sebastian Dröge
parent
c0e17dff4f
commit
23594b0324
1 changed files with 121 additions and 11 deletions
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@ -333,6 +333,103 @@ gst_matroska_mux_class_init (GstMatroskaMuxClass * klass)
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GST_DEBUG_FUNCPTR (gst_matroska_mux_release_pad);
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}
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/**
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* Start of pad option handler code
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*/
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#define DEFAULT_PAD_FRAME_DURATION TRUE
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#define DEFAULT_PAD_FRAME_DURATION_VP8 FALSE
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enum
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{
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PROP_PAD_0,
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PROP_PAD_FRAME_DURATION
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};
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typedef struct
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{
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GstPad parent;
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gboolean frame_duration;
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gboolean frame_duration_user;
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} GstMatroskamuxPad;
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static void gst_matroskamux_pad_class_init (GstPadClass * klass);
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static GType
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gst_matroskamux_pad_get_type (void)
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{
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static GType type = 0;
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if (G_UNLIKELY (type == 0)) {
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type = g_type_register_static_simple (GST_TYPE_PAD,
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g_intern_static_string ("GstMatroskamuxPad"), sizeof (GstPadClass),
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(GClassInitFunc) gst_matroskamux_pad_class_init,
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sizeof (GstMatroskamuxPad), NULL, 0);
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}
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return type;
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}
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#define GST_TYPE_MATROSKAMUX_PAD (gst_matroskamux_pad_get_type())
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#define GST_MATROSKAMUX_PAD(pad) (G_TYPE_CHECK_INSTANCE_CAST((pad),GST_TYPE_MATROSKAMUX_PAD,GstMatroskamuxPad))
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#define GST_MATROSKAMUX_PAD_CAST(pad) ((GstMatroskamuxPad *) pad)
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#define GST_IS_MATROSKAMUX_PAD(pad) (G_TYPE_CHECK_INSTANCE_TYPE((pad),GST_TYPE_MATROSKAMUX_PAD))
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static void
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gst_matroskamux_pad_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstMatroskamuxPad *pad = GST_MATROSKAMUX_PAD (object);
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switch (prop_id) {
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case PROP_PAD_FRAME_DURATION:
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g_value_set_boolean (value, pad->frame_duration);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_matroskamux_pad_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstMatroskamuxPad *pad = GST_MATROSKAMUX_PAD (object);
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switch (prop_id) {
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case PROP_PAD_FRAME_DURATION:
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pad->frame_duration = g_value_get_boolean (value);
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pad->frame_duration_user = TRUE;
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_matroskamux_pad_class_init (GstPadClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_matroskamux_pad_set_property;
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gobject_class->get_property = gst_matroskamux_pad_get_property;
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g_object_class_install_property (gobject_class, PROP_PAD_FRAME_DURATION,
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g_param_spec_boolean ("frame_duration", "Frame duration",
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"Default frame duration", DEFAULT_PAD_FRAME_DURATION,
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G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
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}
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static void
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gst_matroskamux_pad_init (GstMatroskamuxPad * pad)
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{
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pad->frame_duration = DEFAULT_PAD_FRAME_DURATION;
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pad->frame_duration_user = FALSE;
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}
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/*
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* End of pad option handler code
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**/
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/**
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* gst_matroska_mux_init:
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@ -750,7 +847,15 @@ gst_matroska_mux_video_pad_setcaps (GstPad * pad, GstCaps * caps)
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videocontext->pixel_width = width;
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videocontext->pixel_height = height;
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if (gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)
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/* set vp8 defaults or let user override it */
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if (GST_MATROSKAMUX_PAD_CAST (pad)->frame_duration_user == FALSE
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&& (!strcmp (mimetype, "video/x-vp8")))
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GST_MATROSKAMUX_PAD_CAST (pad)->frame_duration =
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DEFAULT_PAD_FRAME_DURATION_VP8;
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if (GST_MATROSKAMUX_PAD_CAST (pad)->frame_duration
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&& gst_structure_get_fraction (structure, "framerate", &fps_n, &fps_d)
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&& fps_n > 0) {
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context->default_duration =
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gst_util_uint64_scale_int (GST_SECOND, fps_d, fps_n);
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@ -1843,7 +1948,7 @@ gst_matroska_mux_request_new_pad (GstElement * element,
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GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
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GstMatroskaMux *mux = GST_MATROSKA_MUX (element);
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GstMatroskaPad *collect_pad;
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GstPad *newpad = NULL;
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GstMatroskamuxPad *newpad;
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gchar *name = NULL;
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const gchar *pad_name = NULL;
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GstPadSetCapsFunction setcapsfunc = NULL;
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@ -1897,11 +2002,14 @@ gst_matroska_mux_request_new_pad (GstElement * element,
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return NULL;
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}
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newpad = gst_pad_new_from_template (templ, pad_name);
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newpad = g_object_new (GST_TYPE_MATROSKAMUX_PAD,
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"name", pad_name, "direction", templ->direction, "template", templ, NULL);
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g_free (name);
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gst_matroskamux_pad_init (newpad);
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collect_pad = (GstMatroskaPad *)
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gst_collect_pads_add_pad_full (mux->collect, newpad,
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sizeof (GstMatroskaPad),
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gst_collect_pads_add_pad_full (mux->collect, GST_PAD (newpad),
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sizeof (GstMatroskamuxPad),
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(GstCollectDataDestroyNotify) gst_matroska_pad_free);
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collect_pad->track = context;
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@ -1916,19 +2024,19 @@ gst_matroska_mux_request_new_pad (GstElement * element,
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* This would allow (clean) transcoding of info from demuxer/streams
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* to another muxer */
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mux->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (newpad);
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gst_pad_set_event_function (newpad,
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gst_pad_set_event_function (GST_PAD (newpad),
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GST_DEBUG_FUNCPTR (gst_matroska_mux_handle_sink_event));
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gst_pad_set_setcaps_function (newpad, setcapsfunc);
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gst_pad_set_active (newpad, TRUE);
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if (!gst_element_add_pad (element, newpad))
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gst_pad_set_setcaps_function (GST_PAD (newpad), setcapsfunc);
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gst_pad_set_active (GST_PAD (newpad), TRUE);
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if (!gst_element_add_pad (element, GST_PAD (newpad)))
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goto pad_add_failed;
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mux->num_streams++;
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GST_DEBUG_OBJECT (newpad, "Added new request pad");
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return newpad;
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return GST_PAD (newpad);
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/* ERROR cases */
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pad_add_failed:
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@ -2671,10 +2779,12 @@ gst_matroska_mux_write_data (GstMatroskaMux * mux, GstMatroskaPad * collect_pad)
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gint64 relative_timestamp64;
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guint64 block_duration;
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gboolean is_video_keyframe = FALSE;
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GstMatroskamuxPad *pad;
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/* write data */
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buf = collect_pad->buffer;
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collect_pad->buffer = NULL;
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pad = GST_MATROSKAMUX_PAD_CAST (collect_pad->collect.pad);
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/* vorbis/theora headers are retrieved from caps and put in CodecPrivate */
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if (collect_pad->track->xiph_headers_to_skip > 0) {
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@ -2802,7 +2912,7 @@ gst_matroska_mux_write_data (GstMatroskaMux * mux, GstMatroskaPad * collect_pad)
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/* Check if the duration differs from the default duration. */
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write_duration = FALSE;
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block_duration = 0;
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if (GST_BUFFER_DURATION_IS_VALID (buf)) {
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if (pad->frame_duration && GST_BUFFER_DURATION_IS_VALID (buf)) {
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block_duration = gst_util_uint64_scale (GST_BUFFER_DURATION (buf),
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1, mux->time_scale);
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