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discoverer: extract some common code

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Extract code to make a GstDiscovererInfo. Extracts code that sets StreamInfo.
This commit is contained in:
Stefan Sauer 2013-10-02 11:27:41 +02:00
parent dd4fe544bc
commit 20cdbc83f3
1 changed files with 42 additions and 76 deletions
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118
gst-libs/gst/pbutils/gstdiscoverer.c
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@ -762,6 +762,35 @@ gst_discoverer_merge_and_replace_tags (GstTagList ** taglist,
gst_tag_list_unref (new_tags);
}
static void
collect_common_information (GstDiscovererStreamInfo * info,
const GstStructure * st)
{
if (gst_structure_id_has_field (st, _TOC_QUARK)) {
gst_structure_id_get (st, _TOC_QUARK, GST_TYPE_TOC, &info->toc, NULL);
}
if (gst_structure_id_has_field (st, _STREAM_ID_QUARK)) {
gst_structure_id_get (st, _STREAM_ID_QUARK, G_TYPE_STRING, &info->stream_id,
NULL);
}
}
static GstDiscovererStreamInfo *
make_info (GstDiscovererStreamInfo * parent, GType type, GstCaps * caps)
{
GstDiscovererStreamInfo *info;
if (parent)
info = gst_discoverer_stream_info_ref (parent);
else {
info = g_object_new (type, NULL);
if (caps)
info->caps = gst_caps_ref (caps);
}
return info;
}
/* Parses a set of caps and tags in st and populates a GstDiscovererStreamInfo
* structure (parent, if !NULL, otherwise it allocates one)
*/
@ -772,19 +801,13 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
GstCaps *caps;
GstStructure *caps_st;
GstTagList *tags_st;
GstToc *toc_st;
const gchar *name;
gchar *stream_id;
int tmp;
guint utmp;
if (!st || !gst_structure_id_has_field (st, _CAPS_QUARK)) {
GST_WARNING ("Couldn't find caps !");
if (parent)
return gst_discoverer_stream_info_ref (parent);
else
return (GstDiscovererStreamInfo *)
g_object_new (GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
return make_info (parent, GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
}
gst_structure_id_get (st, _CAPS_QUARK, GST_TYPE_CAPS, &caps, NULL);
@ -795,13 +818,8 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
GstDiscovererAudioInfo *info;
const gchar *format_str;
if (parent)
info = (GstDiscovererAudioInfo *) gst_discoverer_stream_info_ref (parent);
else {
info = (GstDiscovererAudioInfo *)
g_object_new (GST_TYPE_DISCOVERER_AUDIO_INFO, NULL);
info->parent.caps = gst_caps_ref (caps);
}
info = (GstDiscovererAudioInfo *) make_info (parent,
GST_TYPE_DISCOVERER_AUDIO_INFO, caps);
if (gst_structure_get_int (caps_st, "rate", &tmp))
info->sample_rate = (guint) tmp;
@ -834,16 +852,7 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
gst_discoverer_merge_and_replace_tags (&info->parent.tags, tags_st);
}
if (gst_structure_id_has_field (st, _TOC_QUARK)) {
gst_structure_id_get (st, _TOC_QUARK, GST_TYPE_TOC, &toc_st, NULL);
info->parent.toc = toc_st;
}
if (gst_structure_id_has_field (st, _STREAM_ID_QUARK)) {
gst_structure_id_get (st, _STREAM_ID_QUARK, G_TYPE_STRING, &stream_id,
NULL);
info->parent.stream_id = stream_id;
}
collect_common_information (&info->parent, st);
if (!info->language && ((GstDiscovererStreamInfo *) info)->tags) {
gchar *language;
@ -861,13 +870,8 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
GstDiscovererVideoInfo *info;
GstVideoInfo vinfo;
if (parent)
info = (GstDiscovererVideoInfo *) gst_discoverer_stream_info_ref (parent);
else {
info = (GstDiscovererVideoInfo *)
g_object_new (GST_TYPE_DISCOVERER_VIDEO_INFO, NULL);
info->parent.caps = gst_caps_ref (caps);
}
info = (GstDiscovererVideoInfo *) make_info (parent,
GST_TYPE_DISCOVERER_VIDEO_INFO, caps);
if (gst_video_info_from_caps (&vinfo, caps)) {
info->width = (guint) vinfo.width;
@ -895,20 +899,10 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
info->max_bitrate = utmp;
/* FIXME: Is it worth it to remove the tags we've parsed? */
gst_discoverer_merge_and_replace_tags (&info->parent.tags,
(GstTagList *) tags_st);
gst_discoverer_merge_and_replace_tags (&info->parent.tags, tags_st);
}
if (gst_structure_id_has_field (st, _TOC_QUARK)) {
gst_structure_id_get (st, _TOC_QUARK, GST_TYPE_TOC, &toc_st, NULL);
info->parent.toc = toc_st;
}
if (gst_structure_id_has_field (st, _STREAM_ID_QUARK)) {
gst_structure_id_get (st, _STREAM_ID_QUARK, G_TYPE_STRING, &stream_id,
NULL);
info->parent.stream_id = stream_id;
}
collect_common_information (&info->parent, st);
gst_caps_unref (caps);
return (GstDiscovererStreamInfo *) info;
@ -916,14 +910,8 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
} else if (is_subtitle_caps (caps)) {
GstDiscovererSubtitleInfo *info;
if (parent)
info =
(GstDiscovererSubtitleInfo *) gst_discoverer_stream_info_ref (parent);
else {
info = (GstDiscovererSubtitleInfo *)
g_object_new (GST_TYPE_DISCOVERER_SUBTITLE_INFO, NULL);
info->parent.caps = gst_caps_ref (caps);
}
info = (GstDiscovererSubtitleInfo *) make_info (parent,
GST_TYPE_DISCOVERER_SUBTITLE_INFO, caps);
if (gst_structure_id_has_field (st, _TAGS_QUARK)) {
const gchar *language;
@ -938,16 +926,7 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
gst_discoverer_merge_and_replace_tags (&info->parent.tags, tags_st);
}
if (gst_structure_id_has_field (st, _TOC_QUARK)) {
gst_structure_id_get (st, _TOC_QUARK, GST_TYPE_TOC, &toc_st, NULL);
info->parent.toc = toc_st;
}
if (gst_structure_id_has_field (st, _STREAM_ID_QUARK)) {
gst_structure_id_get (st, _STREAM_ID_QUARK, G_TYPE_STRING, &stream_id,
NULL);
info->parent.stream_id = stream_id;
}
collect_common_information (&info->parent, st);
if (!info->language && ((GstDiscovererStreamInfo *) info)->tags) {
gchar *language;
@ -964,27 +943,14 @@ collect_information (GstDiscoverer * dc, const GstStructure * st,
/* None of the above - populate what information we can */
GstDiscovererStreamInfo *info;
if (parent)
info = gst_discoverer_stream_info_ref (parent);
else {
info = (GstDiscovererStreamInfo *)
g_object_new (GST_TYPE_DISCOVERER_STREAM_INFO, NULL);
info->caps = gst_caps_ref (caps);
}
info = make_info (parent, GST_TYPE_DISCOVERER_STREAM_INFO, caps);
if (gst_structure_id_get (st, _TAGS_QUARK, GST_TYPE_TAG_LIST, &tags_st,
NULL)) {
gst_discoverer_merge_and_replace_tags (&info->tags, tags_st);
}
if (gst_structure_id_get (st, _TOC_QUARK, GST_TYPE_TOC, &toc_st, NULL)) {
info->toc = toc_st;
}
if (gst_structure_id_get (st, _STREAM_ID_QUARK, G_TYPE_STRING, &stream_id,
NULL)) {
info->stream_id = stream_id;
}
collect_common_information (info, st);
gst_caps_unref (caps);
return info;