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/*
* mpegts.h -
* Copyright (C) 2013 Edward Hervey
*
* Authors:
* Edward Hervey <edward@collabora.com>
*
* This library is free softwagre; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_MPEGTS_PRIVATE_H_
#define _GST_MPEGTS_PRIVATE_H_
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN (gst_mpegts_debug);
#define GST_CAT_DEFAULT gst_mpegts_debug
G_GNUC_INTERNAL void __initialize_descriptors (void);
G_GNUC_INTERNAL guint32 _calc_crc32 (const guint8 *data, guint datalen);
G_GNUC_INTERNAL gchar *get_encoding_and_convert (const gchar *text, guint length);
G_GNUC_INTERNAL guint8 *dvb_text_from_utf8 (const gchar * text, gsize *out_size);
G_GNUC_INTERNAL void _free_descriptor (GstMpegTsDescriptor *descriptor);
G_GNUC_INTERNAL GstMpegTsDescriptor *_new_descriptor (guint8 tag, guint8 length);
G_GNUC_INTERNAL GstMpegTsDescriptor *_new_descriptor_with_extension (guint8 tag,
guint8 tag_extension, guint8 length);
G_GNUC_INTERNAL void _packetize_descriptor_array (GPtrArray * array,
guint8 ** out_data);
G_GNUC_INTERNAL GstMpegTsSection *_gst_mpegts_section_init (guint16 pid, guint8 table_id);
G_GNUC_INTERNAL void _packetize_common_section (GstMpegTsSection * section, gsize length);
typedef gpointer (*GstMpegTsParseFunc) (GstMpegTsSection *section);
G_GNUC_INTERNAL gpointer __common_section_checks (GstMpegTsSection *section,
guint minsize,
GstMpegTsParseFunc parsefunc,
GDestroyNotify destroynotify);
#define __common_desc_check_base(desc, tagtype, retval) \
if (G_UNLIKELY ((desc)->data == NULL)) { \
GST_WARNING ("Descriptor is empty (data field == NULL)"); \
return retval; \
} \
if (G_UNLIKELY ((desc)->tag != (tagtype))) { \
GST_WARNING ("Wrong descriptor type (Got 0x%02x, expected 0x%02x)", \
(desc)->tag, tagtype); \
return retval; \
} \
#define __common_desc_checks(desc, tagtype, minlen, retval) \
__common_desc_check_base(desc, tagtype, retval); \
if (G_UNLIKELY ((desc)->length < (minlen))) { \
GST_WARNING ("Descriptor too small (Got %d, expected at least %d)", \
(desc)->length, minlen); \
return retval; \
}
#define __common_desc_checks_exact(desc, tagtype, len, retval) \
__common_desc_check_base(desc, tagtype, retval); \
if (G_UNLIKELY ((desc)->length != (len))) { \
GST_WARNING ("Wrong descriptor size (Got %d, expected %d)", \
(desc)->length, len); \
return retval; \
}
#define __common_desc_ext_check_base(desc, tagexttype, retval) \
if (G_UNLIKELY ((desc)->data == NULL)) { \
GST_WARNING ("Descriptor is empty (data field == NULL)"); \
return retval; \
} \
if (G_UNLIKELY ((desc)->tag != 0x7f) || \
((desc)->tag_extension != (tagexttype))) { \
GST_WARNING ("Wrong descriptor type (Got 0x%02x, expected 0x%02x)", \
(desc)->tag_extension, tagexttype); \
return retval; \
}
#define __common_desc_ext_checks(desc, tagexttype, minlen, retval) \
__common_desc_ext_check_base(desc, tagexttype, retval); \
if (G_UNLIKELY ((desc)->length < (minlen))) { \
GST_WARNING ("Descriptor too small (Got %d, expected at least %d)", \
(desc)->length, minlen); \
return retval; \
}
#define __common_desc_ext_checks_exact(desc, tagexttype, len, retval) \
__common_desc_ext_check_base(desc, tagexttype, retval); \
if (G_UNLIKELY ((desc)->length != (len))) { \
GST_WARNING ("Wrong descriptor size (Got %d, expected %d)", \
(desc)->length, len); \
return retval; \
}
G_END_DECLS
#endif /* _GST_MPEGTS_PRIVATE_H_ */
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