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playbin: Also consider possible converters for raw streams when selecting compatible sink/source combinations

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https://bugzilla.gnome.org/show_bug.cgi?id=704285
This commit is contained in:
Sebastian Dröge 2013-07-16 11:22:35 +02:00
parent 95605a79c9
commit 4cfda00120
1 changed files with 32 additions and 8 deletions
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40
gst/playback/gstplaybin2.c
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@ -585,6 +585,9 @@ enum
LAST_SIGNAL
};
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw");
static void gst_play_bin_class_init (GstPlayBinClass * klass);
static void gst_play_bin_init (GstPlayBin * playbin);
static void gst_play_bin_finalize (GObject * object);
@ -3622,7 +3625,8 @@ is_included (GList * list, GstCapsFeatures * cf)
/* compute the number of common caps features */
static guint
get_n_common_capsfeatures (GstElementFactory * dec, GstElementFactory * sink)
get_n_common_capsfeatures (GstPlayBin * playbin, GstElementFactory * dec,
GstElementFactory * sink, gboolean isaudioelement)
{
GstCaps *d_tmpl_caps, *s_tmpl_caps;
GstCapsFeatures *d_features, *s_features;
@ -3630,6 +3634,14 @@ get_n_common_capsfeatures (GstElementFactory * dec, GstElementFactory * sink)
GList *cf_list = NULL;
guint d_caps_size, s_caps_size;
guint i, j, n_common_cf = 0;
GstCaps *raw_caps =
(isaudioelement) ? gst_static_caps_get (&raw_audio_caps) :
gst_static_caps_get (&raw_video_caps);
GstStructure *raw_struct = gst_caps_get_structure (raw_caps, 0);
GstPlayFlags flags = gst_play_bin_get_flags (playbin);
gboolean native_raw =
(isaudioelement ? ! !(flags & GST_PLAY_FLAG_NATIVE_AUDIO) : ! !(flags &
GST_PLAY_FLAG_NATIVE_VIDEO));
d_tmpl_caps = get_template_caps (dec, GST_PAD_SRC);
s_tmpl_caps = get_template_caps (sink, GST_PAD_SINK);
@ -3646,11 +3658,24 @@ get_n_common_capsfeatures (GstElementFactory * dec, GstElementFactory * sink)
d_features = gst_caps_get_features ((const GstCaps *) d_tmpl_caps, i);
d_struct = gst_caps_get_structure ((const GstCaps *) d_tmpl_caps, i);
for (j = 0; j < s_caps_size; j++) {
s_features = gst_caps_get_features ((const GstCaps *) s_tmpl_caps, j);
s_struct = gst_caps_get_structure ((const GstCaps *) s_tmpl_caps, j);
if (gst_structure_can_intersect (d_struct, s_struct) &&
gst_caps_features_is_equal (d_features, s_features) &&
!is_included (cf_list, s_features)) {
/* A common caps feature is given if the caps features are equal
* and the structures can intersect. If the NATIVE_AUDIO/NATIVE_VIDEO
* flags are not set we also allow if both structures are raw caps with
* system memory caps features, because in that case we have converters in
* place.
*/
if (gst_caps_features_is_equal (d_features, s_features) &&
(gst_structure_can_intersect (d_struct, s_struct) ||
(!native_raw
&& gst_caps_features_is_equal (d_features,
GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)
&& gst_structure_can_intersect (raw_struct, d_struct)
&& gst_structure_can_intersect (raw_struct, s_struct)))
&& !is_included (cf_list, s_features)) {
cf_list = g_list_prepend (cf_list, s_features);
n_common_cf++;
}
@ -3707,7 +3732,9 @@ avelements_create (GstPlayBin * playbin, gboolean isaudioelement)
for (; sl; sl = sl->next) {
s_factory = (GstElementFactory *) sl->data;
n_common_cf = get_n_common_capsfeatures (d_factory, s_factory);
n_common_cf =
get_n_common_capsfeatures (playbin, d_factory, s_factory,
isaudioelement);
if (n_common_cf < 1)
continue;
@ -4151,9 +4178,6 @@ sink_accepts_caps (GstPlayBin * playbin, GstElement * sink, GstCaps * caps)
return TRUE;
}
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw");
/* We are asked to select an element. See if the next element to check
* is a sink. If this is the case, we see if the sink works by setting it to
* READY. If the sink works, we return SELECT_EXPOSE to make decodebin