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gst/avi/gstavidemux.c: Don't crash when encountering a stream with an unknown fourcc or codec id. Instead, create a p...

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Original commit message from CVS:
* gst/avi/gstavidemux.c: (gst_avi_demux_base_init),
(gst_avi_demux_class_init), (gst_avi_demux_parse_stream),
(gst_avi_demux_change_state):
Don't crash when encountering a stream with an unknown fourcc or
codec id. Instead, create a pad of type video/x-avi-unknown or
audio/x-avi-unknown, which as a side-effect also results in less
confusing error messages in players ('no decoder' vs. 'no streams');
minor fixes to state change function and class_init function.
This commit is contained in:
Tim-Philipp Müller 2005-09-26 13:06:27 +00:00
parent 006bdcecb2
commit 41af36aa2f
2 changed files with 59 additions and 16 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2005-09-26 Tim-Philipp Müller <tim at centricular dot net>
* gst/avi/gstavidemux.c: (gst_avi_demux_base_init),
(gst_avi_demux_class_init), (gst_avi_demux_parse_stream),
(gst_avi_demux_change_state):
Don't crash when encountering a stream with an unknown fourcc or
codec id. Instead, create a pad of type video/x-avi-unknown or
audio/x-avi-unknown, which as a side-effect also results in less
confusing error messages in players ('no decoder' vs. 'no streams');
minor fixes to state change function and class_init function.
2005-09-24 Wim Taymans <wim@fluendo.com>
* gst/autodetect/gstautoaudiosink.c: (gst_auto_audio_sink_init):

64
gst/avi/gstavidemux.c
View file

@ -110,11 +110,13 @@ gst_avi_demux_base_init (GstAviDemuxClass * klass)
GstCaps *audcaps, *vidcaps;
audcaps = gst_riff_create_audio_template_caps ();
gst_caps_append (audcaps, gst_caps_new_simple ("audio/x-avi-unknown", NULL));
audiosrctempl = gst_pad_template_new ("audio_%02d",
GST_PAD_SRC, GST_PAD_SOMETIMES, audcaps);
vidcaps = gst_riff_create_video_template_caps ();
gst_caps_append (vidcaps, gst_riff_create_iavs_template_caps ());
gst_caps_append (vidcaps, gst_caps_new_simple ("video/x-avi-unknown", NULL));
videosrctempl = gst_pad_template_new ("video_%02d",
GST_PAD_SRC, GST_PAD_SOMETIMES, vidcaps);
@ -133,7 +135,7 @@ gst_avi_demux_class_init (GstAviDemuxClass * klass)
GST_DEBUG_CATEGORY_INIT (avidemux_debug, "avidemux",
0, "Demuxer for AVI streams");
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
parent_class = g_type_class_peek_parent (klass);
gstelement_class->change_state = gst_avi_demux_change_state;
}
@ -991,34 +993,52 @@ gst_avi_demux_parse_stream (GstElement * element, GstBuffer * buf)
/* we now have all info, let´s set up a pad and a caps and be done */
/* create stream name + pad */
switch (stream->strh->type) {
case GST_RIFF_FCC_vids:
case GST_RIFF_FCC_vids:{
guint32 fourcc;
fourcc = (stream->strf.vids->compression) ?
stream->strf.vids->compression : stream->strh->fcc_handler;
padname = g_strdup_printf ("video_%02d", avi->num_v_streams);
templ = gst_element_class_get_pad_template (klass, "video_%02d");
caps = gst_riff_create_video_caps (stream->strf.vids->compression ?
stream->strf.vids->compression : stream->strh->fcc_handler,
stream->strh, stream->strf.vids,
stream->extradata, stream->initdata, &codec_name);
caps = gst_riff_create_video_caps (fourcc, stream->strh,
stream->strf.vids, stream->extradata, stream->initdata, &codec_name);
if (!caps) {
caps = gst_caps_new_simple ("video/x-avi-unknown", "fourcc",
GST_TYPE_FOURCC, fourcc, NULL);
}
tag_name = GST_TAG_VIDEO_CODEC;
avi->num_v_streams++;
break;
case GST_RIFF_FCC_auds:
}
case GST_RIFF_FCC_auds:{
padname = g_strdup_printf ("audio_%02d", avi->num_a_streams);
templ = gst_element_class_get_pad_template (klass, "audio_%02d");
caps = gst_riff_create_audio_caps (stream->strf.auds->format,
stream->strh, stream->strf.auds,
stream->extradata, stream->initdata, &codec_name);
stream->strh, stream->strf.auds, stream->extradata,
stream->initdata, &codec_name);
if (!caps) {
caps = gst_caps_new_simple ("audio/x-avi-unknown", "codec_id",
G_TYPE_INT, stream->strf.auds->format, NULL);
}
tag_name = GST_TAG_AUDIO_CODEC;
avi->num_a_streams++;
break;
case GST_RIFF_FCC_iavs:
}
case GST_RIFF_FCC_iavs:{
guint32 fourcc = stream->strh->fcc_handler;
padname = g_strdup_printf ("video_%02d", avi->num_v_streams);
templ = gst_element_class_get_pad_template (klass, "video_%02d");
caps = gst_riff_create_iavs_caps (stream->strh->fcc_handler,
stream->strh, stream->strf.iavs,
stream->extradata, stream->initdata, &codec_name);
caps = gst_riff_create_iavs_caps (fourcc, stream->strh,
stream->strf.iavs, stream->extradata, stream->initdata, &codec_name);
if (!caps) {
caps = gst_caps_new_simple ("video/x-avi-unknown", "fourcc",
GST_TYPE_FOURCC, fourcc, NULL);
}
tag_name = GST_TAG_VIDEO_CODEC;
avi->num_v_streams++;
break;
}
default:
g_assert_not_reached ();
}
@ -2195,6 +2215,21 @@ gst_avi_demux_change_state (GstElement * element, GstStateChange transition)
{
GstAviDemux *avi = GST_AVI_DEMUX (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
default:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state) {
GstStateChangeReturn ret;
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
}
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_avi_demux_reset (avi);
@ -2203,8 +2238,5 @@ gst_avi_demux_change_state (GstElement * element, GstStateChange transition)
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return GST_STATE_CHANGE_SUCCESS;
}