mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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6ce1910c5b
Previously this was hardcoded to the DVB extension descriptors (0x7f), but it should also be applied for the base specification extension descriptors (0x3f) Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7172>
106 lines
4.7 KiB
C
106 lines
4.7 KiB
C
/*
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* mpegts.h -
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* Copyright (C) 2013 Edward Hervey
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*
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* Authors:
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* Edward Hervey <edward@collabora.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GST_MPEGTS_PRIVATE_H_
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#define _GST_MPEGTS_PRIVATE_H_
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G_BEGIN_DECLS
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GST_DEBUG_CATEGORY_EXTERN (mpegts_debug);
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#define GST_CAT_DEFAULT mpegts_debug
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G_GNUC_INTERNAL void __initialize_sections (void);
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G_GNUC_INTERNAL void __initialize_descriptors (void);
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G_GNUC_INTERNAL guint32 _calc_crc32 (const guint8 *data, guint datalen);
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G_GNUC_INTERNAL gchar *get_encoding_and_convert (const gchar *text, guint length);
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G_GNUC_INTERNAL gchar *convert_lang_code (guint8 * data);
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G_GNUC_INTERNAL guint8 *dvb_text_from_utf8 (const gchar * text, gsize *out_size);
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G_GNUC_INTERNAL GstMpegtsDescriptor *_new_descriptor (guint8 tag, guint8 length);
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G_GNUC_INTERNAL GstMpegtsDescriptor *_new_descriptor_with_extension (guint8 tag,
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guint8 tag_extension, guint8 length);
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G_GNUC_INTERNAL void _packetize_descriptor_array (GPtrArray * array,
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guint8 ** out_data);
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G_GNUC_INTERNAL GstMpegtsSection *_gst_mpegts_section_init (guint16 pid, guint8 table_id);
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G_GNUC_INTERNAL void _packetize_common_section (GstMpegtsSection * section, gsize length);
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typedef gpointer (*GstMpegtsParseFunc) (GstMpegtsSection *section);
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G_GNUC_INTERNAL gpointer __common_section_checks (GstMpegtsSection *section,
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guint minsize,
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GstMpegtsParseFunc parsefunc,
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GDestroyNotify destroynotify);
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#define __common_desc_check_base(desc, tagtype, retval) \
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if (G_UNLIKELY ((desc)->data == NULL)) { \
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GST_WARNING ("Descriptor is empty (data field == NULL)"); \
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return retval; \
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} \
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if (G_UNLIKELY ((desc)->tag != (tagtype))) { \
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GST_WARNING ("Wrong descriptor type (Got 0x%02x, expected 0x%02x)", \
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(desc)->tag, tagtype); \
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return retval; \
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} \
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#define __common_desc_checks(desc, tagtype, minlen, retval) \
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__common_desc_check_base(desc, tagtype, retval); \
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if (G_UNLIKELY ((desc)->length < (minlen))) { \
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GST_WARNING ("Descriptor too small (Got %d, expected at least %d)", \
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(desc)->length, minlen); \
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return retval; \
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}
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#define __common_desc_checks_exact(desc, tagtype, len, retval) \
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__common_desc_check_base(desc, tagtype, retval); \
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if (G_UNLIKELY ((desc)->length != (len))) { \
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GST_WARNING ("Wrong descriptor size (Got %d, expected %d)", \
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(desc)->length, len); \
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return retval; \
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}
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#define __common_desc_ext_check_base(desc, tagexttype, retval) \
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if (G_UNLIKELY ((desc)->data == NULL)) { \
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GST_WARNING ("Descriptor is empty (data field == NULL)"); \
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return retval; \
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} \
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if (G_UNLIKELY (((desc)->tag != 0x7f) && ((desc)->tag != 0x3f)) || \
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((desc)->tag_extension != (tagexttype))) { \
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GST_WARNING ("Wrong descriptor type (Got 0x%02x, expected 0x%02x)", \
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(desc)->tag_extension, tagexttype); \
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return retval; \
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}
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#define __common_desc_ext_checks(desc, tagexttype, minlen, retval) \
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__common_desc_ext_check_base(desc, tagexttype, retval); \
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if (G_UNLIKELY ((desc)->length < (minlen))) { \
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GST_WARNING ("Descriptor too small (Got %d, expected at least %d)", \
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(desc)->length, minlen); \
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return retval; \
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}
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#define __common_desc_ext_checks_exact(desc, tagexttype, len, retval) \
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__common_desc_ext_check_base(desc, tagexttype, retval); \
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if (G_UNLIKELY ((desc)->length != (len))) { \
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GST_WARNING ("Wrong descriptor size (Got %d, expected %d)", \
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(desc)->length, len); \
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return retval; \
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}
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G_END_DECLS
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#endif /* _GST_MPEGTS_PRIVATE_H_ */
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