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ffdec: avoid generating caps when registering

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Don't generate caps when we register the class but delay that till when
we actually create an instance of the class.
This commit is contained in:
Wim Taymans 2009-10-22 16:27:28 -04:00 committed by Wim Taymans
parent 629969b695
commit 343c82b18c
1 changed files with 24 additions and 31 deletions
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55
ext/ffmpeg/gstffmpegdec.c
View file

@ -174,7 +174,6 @@ typedef struct _GstFFMpegDecClassParams GstFFMpegDecClassParams;
struct _GstFFMpegDecClassParams
{
AVCodec *in_plugin;
GstCaps *srccaps, *sinkcaps;
};
#define GST_TYPE_FFMPEGDEC \
@ -300,12 +299,16 @@ gst_ffmpegdec_base_init (GstFFMpegDecClass * klass)
GstFFMpegDecClassParams *params;
GstElementDetails details;
GstPadTemplate *sinktempl, *srctempl;
GstCaps *sinkcaps, *srccaps;
AVCodec *in_plugin;
params =
(GstFFMpegDecClassParams *) g_type_get_qdata (G_OBJECT_CLASS_TYPE (klass),
GST_FFDEC_PARAMS_QDATA);
g_assert (params != NULL);
in_plugin = params->in_plugin;
/* construct the element details struct */
details.longname = g_strdup_printf ("FFmpeg %s decoder",
params->in_plugin->long_name);
@ -321,16 +324,32 @@ gst_ffmpegdec_base_init (GstFFMpegDecClass * klass)
g_free (details.klass);
g_free (details.description);
/* get the caps */
sinkcaps = gst_ffmpeg_codecid_to_caps (in_plugin->id, NULL, FALSE);
if (!sinkcaps) {
GST_DEBUG ("Couldn't get sink caps for decoder '%s'", in_plugin->name);
sinkcaps = gst_caps_from_string ("unknown/unknown");
}
if (in_plugin->type == CODEC_TYPE_VIDEO) {
srccaps = gst_caps_from_string ("video/x-raw-rgb; video/x-raw-yuv");
} else {
srccaps = gst_ffmpeg_codectype_to_audio_caps (NULL,
in_plugin->id, FALSE, in_plugin);
}
if (!srccaps) {
GST_DEBUG ("Couldn't get source caps for decoder '%s'", in_plugin->name);
srccaps = gst_caps_from_string ("unknown/unknown");
}
/* pad templates */
sinktempl = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS, params->sinkcaps);
srctempl = gst_pad_template_new ("src", GST_PAD_SRC,
GST_PAD_ALWAYS, params->srccaps);
GST_PAD_ALWAYS, sinkcaps);
srctempl = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, srccaps);
gst_element_class_add_pad_template (element_class, srctempl);
gst_element_class_add_pad_template (element_class, sinktempl);
klass->in_plugin = params->in_plugin;
klass->in_plugin = in_plugin;
klass->srctempl = srctempl;
klass->sinktempl = sinktempl;
}
@ -2761,7 +2780,6 @@ gst_ffmpegdec_register (GstPlugin * plugin)
while (in_plugin) {
GstFFMpegDecClassParams *params;
GstCaps *srccaps = NULL, *sinkcaps = NULL;
gchar *type_name;
gchar *plugin_name;
@ -2822,25 +2840,6 @@ gst_ffmpegdec_register (GstPlugin * plugin)
goto next;
}
/* first make sure we've got a supported type */
sinkcaps = gst_ffmpeg_codecid_to_caps (in_plugin->id, NULL, FALSE);
if (!sinkcaps) {
GST_DEBUG ("Couldn't get sink caps for decoder '%s', skipping codec",
in_plugin->name);
goto next;
}
if (in_plugin->type == CODEC_TYPE_VIDEO) {
srccaps = gst_caps_from_string ("video/x-raw-rgb; video/x-raw-yuv");
} else {
srccaps = gst_ffmpeg_codectype_to_audio_caps (NULL,
in_plugin->id, FALSE, in_plugin);
}
if (!srccaps) {
GST_DEBUG ("Couldn't get source caps for decoder '%s', skipping codec",
in_plugin->name);
goto next;
}
/* construct the type */
plugin_name = g_strdup ((gchar *) in_plugin->name);
g_strdelimit (plugin_name, NULL, '_');
@ -2852,8 +2851,6 @@ gst_ffmpegdec_register (GstPlugin * plugin)
if (!type) {
params = g_new0 (GstFFMpegDecClassParams, 1);
params->in_plugin = in_plugin;
params->srccaps = gst_caps_ref (srccaps);
params->sinkcaps = gst_caps_ref (sinkcaps);
/* create the gtype now */
type = g_type_register_static (GST_TYPE_ELEMENT, type_name, &typeinfo, 0);
@ -2902,10 +2899,6 @@ gst_ffmpegdec_register (GstPlugin * plugin)
g_free (type_name);
next:
if (sinkcaps)
gst_caps_unref (sinkcaps);
if (srccaps)
gst_caps_unref (srccaps);
in_plugin = av_codec_next (in_plugin);
}