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140 lines
4.9 KiB
C
140 lines
4.9 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* media-info-priv.h: private stuff */
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#ifndef __GST_MEDIA_INFO_PRIV_H__
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#define __GST_MEDIA_INFO_PRIV_H__
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#include <gst/gst.h>
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/* debug */
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GST_DEBUG_CATEGORY_EXTERN (gst_media_info_debug);
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#define GST_CAT_DEFAULT gst_media_info_debug
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//#define DEBUG
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#ifdef DEBUG
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static gboolean _gmi_debug = TRUE;
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#else
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static gboolean _gmi_debug = FALSE;
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#endif
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#ifdef G_HAVE_ISO_VARARGS
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#define GMI_DEBUG(...) \
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{ if (_gmi_debug) { g_print ( __VA_ARGS__ ); }}
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#elif defined(G_HAVE_GNUC_VARARGS)
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#define GMI_DEBUG(format, args...) \
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{ if (_gmi_debug) { g_print ( format , ## args ); }}
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#endif
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/* state machine enum; FIXME: can we move this to priv.c ? */
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typedef enum
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{
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GST_MEDIA_INFO_STATE_NULL,
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GST_MEDIA_INFO_STATE_TYPEFIND,
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GST_MEDIA_INFO_STATE_STREAM,
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GST_MEDIA_INFO_STATE_METADATA,
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GST_MEDIA_INFO_STATE_STREAMINFO,
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GST_MEDIA_INFO_STATE_FORMAT,
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GST_MEDIA_INFO_STATE_DONE
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} GstMediaInfoState;
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/* private structure */
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struct GstMediaInfoPriv
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{
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GstElement *typefind;
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GstCaps *type;
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GstCaps *format;
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GstTagList *metadata;
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gint metadata_iters;
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GstTagList *streaminfo;
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GstElement *pipeline; /* will be != NULL during collection */
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gchar *pipeline_desc; /* will be != NULL during collection */
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GstElement *fakesink; /* so we can get caps from the
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decoder sink pad */
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gchar *source_name; /* type of element used as source */
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GstElement *source;
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GstPad *source_pad; /* pad for querying encoded caps */
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GstElement *decoder;
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GstPad *decoder_pad; /* pad for querying decoded caps */
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GstElement *decontainer; /* element to typefind in containers */
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GstMediaInfoState state; /* current state of state machine */
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gchar *location; /* location set on the info object */
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guint16 flags; /* flags supplied for detection */
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GstMediaInfoTrack *current_track; /* track pointer under inspection */
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glong current_track_num; /* current track under inspection */
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GstMediaInfoStream *stream; /* total stream properties */
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char *cache; /* location of cache */
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GError *error; /* error for creation problems */
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};
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/* declarations */
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GstMediaInfoStream *
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gmi_stream_new (void);
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void gmi_stream_free (GstMediaInfoStream *stream);
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GstMediaInfoTrack *
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gmi_track_new (void);
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void gmip_reset (GstMediaInfoPriv *priv);
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gboolean gmip_init (GstMediaInfoPriv *priv, GError **error);
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void gmi_clear_decoder (GstMediaInfo *info);
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gboolean gmi_seek_to_track (GstMediaInfo *info,
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long track);
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gboolean gmi_set_mime (GstMediaInfo *info,
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const char *mime);
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void deep_notify_callback (GObject *object,
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GstObject *origin,
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GParamSpec *pspec,
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GstMediaInfoPriv *priv);
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void found_tag_callback (GObject *pipeline, GstElement *source, GstTagList *tags, GstMediaInfoPriv *priv);
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void error_callback (GObject *element, GstElement *source, GError *error, gchar *debug, GstMediaInfoPriv *priv);
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gboolean gmip_find_type_pre (GstMediaInfoPriv *priv, GError **error);
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gboolean gmip_find_type_post (GstMediaInfoPriv *priv);
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gboolean gmip_find_type (GstMediaInfoPriv *priv, GError **error);
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gboolean gmip_find_stream_pre (GstMediaInfoPriv *priv);
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gboolean gmip_find_stream_post (GstMediaInfoPriv *priv);
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gboolean gmip_find_stream (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_metadata_pre (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_metadata_post (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_metadata (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_streaminfo_pre (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_streaminfo_post (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_streaminfo (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_format_pre (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_format_post (GstMediaInfoPriv *priv);
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gboolean gmip_find_track_format (GstMediaInfoPriv *priv);
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#endif /* __GST_MEDIA_INFO_PRIV_H__ */
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