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encodebin: Enhance algorithm to check if profiles can be plugged to muxer

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In particular muxing sinks have specific set of sinkpads and we need
to handle that.
This commit is contained in:
Thibault Saunier 2020-11-19 19:06:12 -03:00
parent 174201059e
commit db17502446
1 changed files with 46 additions and 25 deletions
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71
gst/encoding/gstencodebasebin.c
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@ -999,41 +999,62 @@ gst_element_get_pad_from_template (GstElement * element, GstPadTemplate * templ)
return ret;
}
/* FIXME : Improve algorithm for finding compatible muxer sink pad */
static inline GstPad *
get_compatible_muxer_sink_pad (GstEncodeBaseBin * ebin, GstElement * encoder,
GstCaps * sinkcaps)
get_compatible_muxer_sink_pad (GstEncodeBaseBin * ebin,
GstEncodingProfile * sprof, GstCaps * sinkcaps)
{
GstPad *sinkpad;
GstPadTemplate *srctempl = NULL;
GstPadTemplate *sinktempl;
GList *padl, *compatible_templates = NULL;
if (encoder) {
GstPad *srcpad;
srcpad = gst_element_get_static_pad (encoder, "src");
GST_DEBUG_OBJECT (ebin, "Finding muxer pad for caps: %" GST_PTR_FORMAT,
sinkcaps);
padl = gst_element_get_pad_template_list (ebin->muxer);
for (; padl; padl = padl->next) {
const gchar *type_name, *other_type_name;
GstPadTemplate *padtempl = padl->data;
srctempl = gst_pad_get_pad_template (srcpad);
if (padtempl->direction == GST_PAD_SRC)
continue;
GST_DEBUG_OBJECT (ebin,
"Attempting to find pad from muxer %s compatible with %s:%s",
GST_ELEMENT_NAME (ebin->muxer), GST_DEBUG_PAD_NAME (srcpad));
if (!gst_caps_can_intersect (GST_PAD_TEMPLATE_CAPS (padtempl), sinkcaps))
continue;
gst_object_unref (srcpad);
sinktempl = gst_element_get_compatible_pad_template (ebin->muxer, srctempl);
gst_object_unref (srctempl);
} else {
srctempl =
gst_pad_template_new ("whatever", GST_PAD_SRC, GST_PAD_ALWAYS,
sinkcaps);
g_assert (srctempl != NULL);
sinktempl = gst_element_get_compatible_pad_template (ebin->muxer, srctempl);
gst_object_unref (srctempl);
if (!gst_caps_is_any (GST_PAD_TEMPLATE_CAPS (padtempl))) {
compatible_templates = g_list_append (compatible_templates, padtempl);
continue;
}
if (GST_IS_ENCODING_VIDEO_PROFILE (sprof)) {
type_name = "video";
other_type_name = "audio";
} else if (GST_IS_ENCODING_AUDIO_PROFILE (sprof)) {
type_name = "audio";
other_type_name = "video";
} else {
compatible_templates = g_list_prepend (compatible_templates, padtempl);
continue;
}
if (strstr (padtempl->name_template, type_name) == padtempl->name_template)
compatible_templates = g_list_prepend (compatible_templates, padtempl);
else if (!strstr (padtempl->name_template, other_type_name))
compatible_templates = g_list_append (compatible_templates, padtempl);
else
GST_LOG_OBJECT (padtempl, "not compatible with %" GST_PTR_FORMAT, sprof);
}
if (G_UNLIKELY (sinktempl == NULL))
if (G_UNLIKELY (compatible_templates == NULL))
goto no_template;
sinkpad = gst_element_get_pad_from_template (ebin->muxer, sinktempl);
for (padl = compatible_templates; padl; padl = padl->next) {
sinkpad = gst_element_get_pad_from_template (ebin->muxer, padl->data);
if (sinkpad)
break;
}
g_list_free (compatible_templates);
GST_DEBUG_OBJECT (ebin, "Returning pad: %" GST_PTR_FORMAT, sinkpad);
return sinkpad;
@ -1332,7 +1353,7 @@ _create_stream_group (GstEncodeBaseBin * ebin, GstEncodingProfile * sprof,
* If we are handling a container profile, figure out if the muxer has a
* sinkpad compatible with the selected profile */
if (ebin->muxer) {
muxerpad = get_compatible_muxer_sink_pad (ebin, NULL, format);
muxerpad = get_compatible_muxer_sink_pad (ebin, sprof, format);
if (G_UNLIKELY (muxerpad == NULL))
goto no_muxer_pad;